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000
FXUS61 KPHI 230756
AFDPHI

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
356 AM EDT THU OCT 23 2014

.SYNOPSIS...
LOW PRESSURE OFFSHORE WILL STRENGTHEN AS IT SLOWLY TRACKS
NORTHEASTWARD TODAY AND TONIGHT, THEN MOVES INTO THE NOVA SCOTIA
AREA FRIDAY NIGHT. HIGH PRESSURE IS FORECAST TO BUILD TOWARD OUR
AREA FROM THE SOUTHWEST FRIDAY AND SATURDAY, THEN A COLD FRONT IS
EXPECTED TO MOVE THROUGH SATURDAY NIGHT. HIGH PRESSURE BUILDS IN FOR
LATER SUNDAY AND MONDAY BEFORE SHIFTING OFFSHORE TUESDAY. A WARM
FRONT MAY LIFT TO OUR NORTH MONDAY NIGHT AND TUESDAY, THEN A COLD
FRONT ARRIVES WEDNESDAY.

&&

.NEAR TERM /UNTIL 6 PM THIS EVENING/...
THE CLOSED UPPER LOW AND THE SURFACE LOW ARE BOTH LOCATED OFFSHORE.
THESE FEATURES WILL CONTINUE TO SLOWLY LIFT NORTHEASTWARD TODAY.

ANOTHER RAW AND COLD FALL DAY IS IN STORE FOR OUR AREA TODAY.

CLOUDY SKIES REMAIN ACROSS THE REGION AND WILL CONTINUE THROUGH
TODAY. THE CLOUDS WILL START TO CLEAR A BIT FROM THE SOUTHWEST TO
THE NORTHEAST AS THE LOWS LIFT NORTH. HOWEVER, IT WILL NOT HELP MUCH
TODAY AS WE ARE NOT LIKELY TO SEE THE SUN.

THE WINDS WILL CONTINUE TO GUST TODAY AS THE PRESSURE GRADIENT
REMAINS PRETTY TIGHT. WINDS WILL BE OUT OF THE NORTHWEST AND WILL BE
AROUND 10 TO 20 KNOTS WITH HIGHER GUSTS THROUGH THIS AFTERNOON.
WINDS WILL START TO SUBSIDE TOWARD EVENING.

RAIN HAS LARGELY ENDED AS A DRY SLOT, ROTATING AROUND THE COASTAL
LOW, HAS ENTERED OUR AREA. RAIN WILL CONTINUE TO ROTATE THROUGH THE
REGION THROUGH TODAY BUT SHOULD MOSTLY END BY THIS AFTERNOON. MOSTLY
LIGHT RAIN CAN BE EXPECTED, ALTHOUGH A FEW STEADIER SHOWERS REMAIN
POSSIBLE.

ANOTHER COLD DAY ON TAP AS WE DON`T SEE MUCH SUN AND WITH THE GUSTY
NORTHWEST WINDS IT WILL BE HARD TO GET TEMPERATURES TO RISE ALL THAT
MUCH. TEMPERATURES WILL REACH INTO THE 50S TODAY WITH SOME 40S
ACROSS THE NORTH.

&&

.SHORT TERM /6 PM THIS EVENING THROUGH 6 AM FRIDAY/...
SKIES WILL START TO BECOME LESS CLOUDY, ESPECIALLY ACROSS THE
SOUTHWESTERN PARTS OF THE FORECAST AREA, AS THE SURFACE AND UPPER
LOWS MAKE THEIR WAY TOWARD THE NEW ENGLAND COAST.

ALL RAIN SHOULD HAVE ENDED ACROSS THE REGION AND WE SHOULD REMAIN
DRY THROUGH THE NIGHT. WINDS WILL DECREASE A BIT TONIGHT BUT WILL
NOT GO LIGHT AND VARIABLE, KEEPING A CHILL IN THE AIR.

LOWS WILL LARGELY BE IN THE 40S ACROSS THE FORECAST AREA.

&&

.LONG TERM /FRIDAY THROUGH WEDNESDAY/...
A CLOSED LOW IS FORECAST TO BE MOVING AWAY AND WEAKENING SOME
FRIDAY. THIS WILL TAKE SURFACE LOW PRESSURE WITH IT AS IT TRACKS
NEAR NOVA SCOTIA FRIDAY NIGHT. A SHORT WAVE TROUGH MAY THEN MOVE
ACROSS THE AREA FRIDAY EVENING. AS ADDITIONAL ENERGY DRIVES INTO THE
PACIFIC NORTHWEST, A BUILDING RIDGE OCCURS ACROSS THE PLAINS
SATURDAY INTO SUNDAY. THIS WILL FORCE ANOTHER UPPER-LEVEL TROUGH
DOWN INTO THE NORTHEAST OVER THE WEEKEND, HOWEVER AS IT CLOSES OFF
IT LOOKS TO BE CENTERED ACROSS NEW ENGLAND. A COLD FRONT TIED TO
SURFACE LOW PRESSURE WILL SLIDE ACROSS OUR AREA SATURDAY NIGHT. THE
AFOREMENTIONED UPPER-LEVEL RIDGE THEN ARRIVES IN THE EAST DURING
MONDAY INTO TUESDAY, HOWEVER WITH THE PROGRESSIVE FLOW PATTERN THE
NEXT COLD FRONT IS FORECAST TO BE DRIVING EASTWARD LATE MONDAY AND
TUESDAY. A RETURN FLOW MONDAY NIGHT AND TUESDAY SHOULD SEND A WARM
FRONT TO OUR NORTH, THEN A COLD FRONT ARRIVES LATER WEDNESDAY. WE
USED A MODEL BLEND FOR FRIDAY THROUGH SUNDAY, THEN BLENDED THE 00Z
WPC GUIDANCE IN WITH CONTINUITY. SOME TWEAKS WERE THEN MADE AFTER
ADDITIONAL COLLABORATION WITH OUR SURROUNDING OFFICES.

FOR FRIDAY...IT APPEARS DRYING WORKS IN AS THE CLOSED LOW AND
SURFACE LOW SHIFT FARTHER TO OUR NORTHEAST, AND THIS SHOULD RESULT
IN A DECREASE IN CLOUDS WITH TIME. A TIGHT PRESSURE GRADIENT
INITIALLY WILL RESULT IN BREEZY CONDITIONS, ALTHOUGH A DECREASE IS
ANTICIPATED QUICKLY BY EVENING AS HIGH PRESSURE STARTS TO EXPAND
NORTHEASTWARD FROM THE TENNESSEE VALLEY. A SHORT WAVE TROUGH LOOKS
TO SLIDE ACROSS THE AREA DURING THE EVENING, HOWEVER A LACK OF DEEP
MOISTURE SHOULD ONLY RESULT IN PERHAPS SOME CLOUDS FOR A TIME.

FOR SATURDAY AND SUNDAY...HIGH PRESSURE BUILDS TO OUR SOUTH
SATURDAY, HOWEVER A STRONG SHORT WAVE DIVING SOUTHEASTWARD FROM THE
GREAT LAKES WILL DIG ANOTHER UPPER-LEVEL TROUGH ACROSS THE NORTHEAST
LATER SATURDAY AND SUNDAY. THIS WILL TOSS A COLD FRONT ACROSS OUR
AREA SATURDAY NIGHT, HOWEVER LIMITED MOISTURE RETURN SHOULD RESULT
IN PERHAPS AN ISOLATED SHOWER ACROSS THE NORTH. ANOTHER CLOSED LOW
IS THEN EXPECTED TO INFLUENCE OUR WEATHER, HOWEVER THIS IS FORECAST
TO TRACK ACROSS NEW ENGLAND INSTEAD OF RIGHT OVER OUR AREA. THE 00Z
NAM/ECMWF SHOW A MORE AMPLIFIED AND SOUTHERLY SOLUTION WITH THE
CLOSING LOW NEAR NEW ENGLAND, WHICH MAKES SENSE CONSIDERING THE
AMPLIFYING RIDGE UPSTREAM. THE ASSOCIATED SURFACE LOW LOOKS TO
INTENSIFY AS IS EXITS NEW ENGLAND, WHICH MEANS A TIGHTENING PRESSURE
GRADIENT DOWN INTO THE MID ATLANTIC SUNDAY. AS A RESULT, A BREEZY
DAY SHOULD OCCUR AS MIXING DEEPENS /STEEPENING LOW-LEVEL LAPSE
RATES/ UNDER A NORTHWESTERLY FLOW. HIGH PRESSURE THEN STARTS TO
BUILD IN SUNDAY NIGHT WITH DECREASING WINDS AND CHILLIER
TEMPERATURES.

FOR MONDAY AND TUESDAY...AN UPPER-LEVEL RIDGE ARRIVES IN THE EAST
ALLOWING SURFACE HIGH PRESSURE TO BUILD ACROSS OUR AREA MONDAY
BEFORE SHIFTING OFFSHORE TUESDAY. THIS IS EXPECTED TO RESULT IN
WARMING CONDITIONS, ESPECIALLY AS WAA DEVELOPS TUESDAY IN THE WAKE
OF A WARM FRONT AND AHEAD OF THE NEXT COLD FRONT. NO MAJOR CHANGES
WERE MADE FOR THIS TIME FRAME, WITH JUST SOME BLENDING IN OF THE NEW
00Z WPC GUIDANCE.

FOR WEDNESDAY...THE RIDGE AXIS IS FORECAST TO BE SHIFTING TO OUR
EAST AS AN UPPER-LEVEL TROUGH SLIDES ACROSS THE GREAT LAKES AND
TENNESSEE VALLEY. A COLD FRONT TIED TO THIS FEATURE SHOULD BE
ARRIVING INTO OUR AREA DURING WEDNESDAY. MUCH OF THE ENERGY MAY
SLIDE TO OUR NORTHWEST, HOWEVER THERE IS THE POTENTIAL FOR A BROKEN
BAND OF SHOWERS WITH THE COLD FRONT ITSELF. FOR NOW, WENT WITH
SLIGHT CHC TO LOW CHC POPS IN THE GRIDDED FORECAST FROM WEST TO EAST.

&&

.AVIATION /08Z THURSDAY THROUGH MONDAY/...
THE FOLLOWING DISCUSSION IS FOR KPHL, KPNE, KTTN, KABE, KRDG, KILG,
KMIV, KACY AND SURROUNDING AREAS.

MVFR TO VFR CEILINGS ARE BEING OBSERVED AT THE TERMINALS. RAIN IS
FAIRLY LIGHT AT THIS TIME AS A DRY SLOT HAS MOVED INTO THE REGION.
THE RAIN WILL CONTINUE TO ROTATE THROUGH THE REGION THROUGH THIS
MORNING, ENDING BY THIS AFTERNOON. RAIN WILL BE GENERALLY LIGHT.

CEILINGS WILL REMAIN MVFR THROUGH THIS MORNING BUT WILL GRADUALLY
LIFT AND SHOULD BECOME VFR BY LATE MORNING/EARLY AFTERNOON AT THE
TERMINALS.

THE WINDS ARE OUT OF THE NORTH NORTHWEST THIS MORNING AND WILL
REMAIN OUT OF THE NORTHWEST THROUGH THE TAF PERIOD. SUSTAINED
WINDS WILL BE AROUND 12 TO 18 KNOTS WITH GUSTS IN THE 25 TO 30
KNOT RANGE THIS AFTERNOON. THE GUSTINESS SHOULD START TO SUBSIDE
LATER THIS EVENING.

OUTLOOK...
FRIDAY...VFR. NORTHWEST WINDS 10-15 KNOTS WITH GUSTS TO AROUND
20 KNOTS, THEN DIMINISHING AT NIGHT.

SATURDAY AND SUNDAY...VFR OVERALL. THERE IS A LOW CHC FOR A FEW
SHOWERS LATE SATURDAY AS A COLD FRONT MOVES THROUGH. SOUTHWEST WINDS
SATURDAY AT 10 KNOTS OR LESS, SHIFT TO THE WEST AND NORTHWEST
SATURDAY NIGHT AND SUNDAY. THE WIND SPEEDS SUNDAY INCREASE TO NEAR
15 KNOTS WITH GUSTS TO 25 KNOTS, BUT DIMINISH AT NIGHT.

MONDAY...VFR. WEST TO SOUTHWEST WINDS LESS THAN 10 KNOTS.

&&

.MARINE...
GALE WARNING REMAINS IN EFFECT UNTIL 6PM ON THE OCEAN WATERS AND
LOWER DELAWARE BAY. A SMALL CRAFT ADVISORY REMAINS IN EFFECT FOR THE
UPPER DELAWARE BAY.

A TIGHT PRESSURE GRADIENT WILL CONTINUE TODAY ACROSS THE AREA
WATERS. NORTH TO NORTHWEST WINDS 20 TO 25 KNOTS WITH GUSTS UP TO 40
KNOTS ACROSS THE OCEAN AND LOWER BAY, GUSTS WILL BE CLOSER TO 30
KNOTS ACROSS THE UPPER BAY. WINDS WILL DIMINISH THIS EVENING AND IT
LOOKS LIKE WE LOSE THE GALE FORCE GUSTS BEFORE MIDNIGHT. A SMALL
CRAFT ADVISORY WILL LIKELY BE NEEDED FOR A TIME AFTER THE GALES COME
DOWN. SEAS WILL SUBSIDE GRADUALLY TODAY AND TONIGHT.

OUTLOOK...
FRIDAY...NORTHWESTERLY WINDS WILL GRADUALLY DIMINISH AS THE PRESSURE
GRADIENT RELAXES. THIS WILL ALSO RESULT IN THE SEAS SUBSIDING.
THEREFORE, A SMALL CRAFT ADVISORY WILL BE NEEDED FOR AT LEAST A
PORTION OF THIS TIME FRAME.

SATURDAY...THE WINDS WINDS TURN MORE WEST-SOUTHWEST AHEAD OF A COLD
FRONT, BUT THEN SHIFT TO WEST AND NORTHWEST AT NIGHT BEHIND THE
FRONTAL PASSAGE. THE WINDS ARE ANTICIPATED TO INCREASE, WITH THE
CONDITIONS BEING JUST BELOW ADVISORY CRITERIA UNTIL LATER AT NIGHT.

SUNDAY...A TIGHTENING PRESSURE GRADIENT UNDER A NORTHWESTERLY FLOW
ALONG WITH DECENT MIXING SHOULD RESULT IN A PERIOD OF SMALL CRAFT
ADVISORY CONDITIONS OCCURRING. THIS WILL ALSO BUILD THE SEAS,
HOWEVER WITH THE HIGHEST SETS FARTHER OFFSHORE GIVEN THE WIND FLOW.

MONDAY...THE CONDITIONS ARE ANTICIPATED TO BE BELOW ADVISORY
CRITERIA AS HIGH PRESSURE BUILDS IN.

&&

.TIDES/COASTAL FLOODING...
TIDES ARE RUNNING HIGH DUE TO A COMBINATION OF THE STORM OFF THE
COAST AND THE APPROACHING NEW MOON. HIGH TIDE THIS MORNING WILL BE
SLIGHTLY HIGHER THAN YESTERDAYS HIGH TIDE. HOWEVER, WITH A STRONG
NORTHWESTERLY FLOW CONTINUING TODAY, WE SHOULD SEE THE WATER START
TO PUSH AWAY FROM THE COAST AS OPPOSED TO PUSHING TOWARDS THE
COAST.

RIGHT NOW THE ONLY FLOODING WE ARE EXPECTING WOULD BE ISOLATED MINOR
FLOODING BELOW OUR ESTABLISHED THRESHOLDS NEEDED FOR AN ADVISORY. WE
WILL CONTINUE TO MONITOR THE TIDES AND ISSUE AN ADVISORY IF NEEDED.

&&

.PHI WATCHES/WARNINGS/ADVISORIES...
PA...NONE.
NJ...NONE.
DE...NONE.
MD...NONE.
MARINE...GALE WARNING UNTIL 6 PM EDT THIS EVENING FOR ANZ431-450>455.
     SMALL CRAFT ADVISORY UNTIL 6 PM EDT THIS EVENING FOR ANZ430.

&&

$$
SYNOPSIS...GORSE
NEAR TERM...MEOLA
SHORT TERM...MEOLA
LONG TERM...GORSE
AVIATION...GORSE/MEOLA
MARINE...GORSE/MEOLA
TIDES/COASTAL FLOODING...MEOLA





000
FXUS61 KPHI 230556
AFDPHI

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
156 AM EDT THU OCT 23 2014

.SYNOPSIS...
AN AREA OF LOW PRESSURE OFFSHORE WILL CONTINUE TO STRENGTHEN AS IT
SLOWLY TRACKS NORTHEASTWARD. THIS STORM SYSTEM SHOULD BE OFF THE
NEW ENGLAND COAST LATER TODAY INTO FRIDAY, THEN MOVE INTO NOVA
SCOTIA FRIDAY NIGHT. HIGH PRESSURE IS FORECAST TO BUILD TOWARD OUR
AREA FROM THE SOUTHWEST FRIDAY AND SATURDAY, THEN A COLD FRONT IS
EXPECTED TO MOVE THROUGH SATURDAY NIGHT. HIGH PRESSURE BUILDS IN
FOR LATER SUNDAY AND MONDAY BEFORE SHIFTING OFFSHORE TUESDAY.

&&

.NEAR TERM /UNTIL 6 AM THIS MORNING/...
THE CLOSED UPPER LOW AND THE SURFACE LOW ARE BOTH LOCATED
OFFSHORE. THESE FEATURES WILL CONTINUE TO SLOWLY LIFT
NORTHEASTWARD THROUGH THIS MORNING.

CLOUDY SKIES REMAIN ACROSS THE REGION AND IT IS STILL PRETTY GUSTY
IN THE NORTH TO NORTHWEST FLOW. TEMPERATURES ARE EXPECTED TO FALL
INTO THE 40S BY DAYBREAK.

RAIN ROTATING AROUND THE COASTAL SYSTEM WILL MAINTAIN A NORTHEAST
TO SOUTHWEST ORIENTATION IN OUR REGION OVERNIGHT. SOMETIMES THE
RAIN WILL COME DOWN A LITTLE HEAVIER THAN AT OTHER TIMES, BUT MOST
OF THIS PRECIPITATION IS STILL EXPECTED TO LIFT NORTH OF OUR AREA
DURING THE LATE OVERNIGHT PERIOD. A DRY SLOT HAS MADE ITS WAY
INLAND AND WILL PROVIDE A BIT OF A BREAK IN THE PRECIPITATION
EARLY THIS MORNING. RAIN WILL CONTINUE TO ROTATE THROUGH THE AREA
THROUGH THIS MORNING. RAINFALL AMOUNTS OVER THE ENTIRE CWA SHOULD
BE IN THE QUARTER TO HALF INCH RANGE, WITH LESSER AMOUNTS POSSIBLE
IN THE SOUTHERN POCONOS...AND WESTERN BERKS COUNTY.

&&

.SHORT TERM /6 AM THIS MORNING THROUGH 6 PM TODAY/...
THE MID LEVEL LOW AND THE SURFACE LOW ARE FORECAST TO MOVE TOWARD
THE WATERS OFF CAPE COD ON THURSDAY. THE PRECIPITATION ASSOCIATED
WITH THE COASTAL SYSTEM WILL BEGIN TO LIFT NORTHEASTWARD, AS WELL.

WE ARE EXPECTING THE RAIN TO BECOME SHOWERY AND END GRADUALLY FROM
SOUTHWEST TO NORTHEAST ON THURSDAY.

THE SKY SHOULD REMAIN CLOUDY WITH A NORTHWEST WIND IN THE 10 TO 20
MPH RANGE WITH GUSTS OF 20 TO 30 MPH. THE CLOUDS AND THE NORTHWEST
FLOW WILL LIKELY KEEP TEMPERATURES FROM GETTING ABOVE THE 50S ON
THURSDAY AFTERNOON.

&&

.LONG TERM /TONIGHT THROUGH WEDNESDAY/...
MODEL CONSENSUS THROUGH THE FIRST COUPLE DAYS OF THE EXTENDED IS
PRETTY GOOD, BUT ONCE YOU GET PAST SATURDAY A MUCH LARGER SPREAD IS
SEEN. WE WILL, HOWEVER, BE TRANSITIONING FROM TROUGHINESS TO DEGREES
OF RIDGING THROUGH THE EXTENDED, STARTING BY EARLY NEXT WEEK. FOR
THE MOST PART WE MAINTAIN A RELATIVELY DRY LONG TERM FROM SATURDAY
ONWARD AS RIDGING BEGINS TO BUILD TO OUR SOUTH-SOUTHWEST.

FRIDAY...UPPER LEVEL LOW CONTINUES TO SPIN AND PULL AWAY TO OUR
NORTHEAST WITH JUST SOME LINGERING BACKSIDE SHOWERS POSSIBLE ACROSS OUR
NORTHERN ZONES. THE OVERALL TREND ON FRIDAY IS FOR DRYING AS THE
STRONG PRESSURE GRADIENT AND NORTHWEST WINDS REMAIN IN PLACE.
TEMPERATURES SHOULD BE ABLE TO REBOUND BACK IN THE LOW TO MID-60S
WITH LESS CLOUD COVER THAN PREVIOUS DAYS AND THE LACK OF SHOWERS.

SATURDAY AND SUNDAY...HIGH PRESSURE BUILDS TO OUR SOUTH SATURDAY,
HOWEVER A STRONG SHORT WAVE DIVING SOUTHEASTWARD FROM THE GREAT
LAKES WILL DIG ANOTHER UPPER-LEVEL TROUGH ACROSS THE NORTHEAST LATER
SATURDAY INTO SUNDAY. THIS WILL TOSS A COLD FRONT ACROSS OUR AREA
SATURDAY NIGHT BUT STILL UNSURE IF WE WILL SEE A DRY PASSAGE WITH
THIS SYSTEM. THINKING THAT THE ATMOSPHERE WILL NOT HAVE MUCH TIME TO
MODIFY AHEAD OF THE FRONT AND HOW MUCH INFLUENCE THE ENERGY WILL
HAVE AS IT COMES IN ON THE HEELS OF THE ONCE CUT-OFF LOW. WITH THE
LIMITED AMOUNT OF MOISTURE EXPECTED IT SHOULD RESULT IN A GENERALLY
DRY FRONTAL PASSAGE. THE ASSOCIATED SURFACE LOW LOOKS TO INTENSIFY
AS IS EXITS NEW ENGLAND, WHICH MEANS A TIGHTENING PRESSURE GRADIENT
DOWN INTO THE MID ATLANTIC SUNDAY. AS A RESULT, A BREEZY DAY MAY
OCCUR AS MIXING DEEPENS. HIGH PRESSURE THEN STARTS TO BUILD IN
SUNDAY NIGHT.

MONDAY - WEDNESDAY...AN UPPER-LEVEL RIDGE SLIDES TOWARD THE EAST
ALLOWING HIGH PRESSURE TO BUILD ACROSS OUR AREA MONDAY BEFORE
SHIFTING OFFSHORE TUESDAY. THIS IS EXPECTED TO RESULT IN WARMING
CONDITIONS, ESPECIALLY AS WAA DEVELOPS TUESDAY AHEAD OF THE NEXT
COLD FRONT. NO MAJOR CHANGES WERE MADE FOR THIS TIME FRAME, WITH
JUST SOME BLENDING IN OF THE NEW 12Z WPC GUIDANCE.

&&

.AVIATION /06Z THURSDAY THROUGH MONDAY/...
THE FOLLOWING DISCUSSION IS FOR KPHL, KPNE, KTTN, KABE, KRDG, KILG,
KMIV, KACY AND SURROUNDING AREAS.

MVFR TO VFR CEILINGS ARE BEING OBSERVED AT THE TERMINALS. RAIN IS
FAIRLY LIGHT AT THIS TIME AS A DRY SLOT HAS STARTING TO MOVE INTO
THE REGION. THE RAIN WILL CONTINUE TO ROTATE THROUGH THE REGION
THROUGH THIS MORNING, ENDING BY THIS AFTERNOON.

CEILINGS WILL REMAIN MVFR THROUGH THIS MORNING BUT WILL GRADUALLY
LIFT AND SHOULD BECOME VFR BY LATE MORNING/EARLY AFTERNOON AT THE
TERMINALS.

THE WINDS ARE OUT OF THE NORTH NORTHWEST THIS MORNING AND WILL
REMAIN OUT OF THE NORTHWEST THROUGH THE TAF PERIOD. SUSTAINED
WINDS WILL BE AROUND 12 TO 18 KNOTS WITH GUSTS IN THE 25 TO 30
KNOT RANGE THIS AFTERNOON. THE GUSTINESS SHOULD START TO SUBSIDE
LATER THIS EVENING.

OUTLOOK...
FRIDAY...VFR. CONTINUED NORTHWEST WINDS WITH GUSTS AROUND 20
KNOTS. SOME LINGERING SHOWERS POSSIBLE NORTH OF ABE. MEDIUM
CONFIDENCE, LOWER ON SHOWERS.

SATURDAY - SUNDAY...VFR. WINDS SHIFT TO THE WEST-SOUTHWEST. DRY COLD
FRONT PASSAGE EXPECTED LATE SATURDAY NIGHT. MEDIUM CONFIDENCE.

MONDAY...VFR.

&&

.MARINE...
THE GALE WARNING CONTINUES UNTIL 600 PM FOR OUR OCEAN WATERS AND
FOR THE LOWER PART OF DELAWARE BAY. THE CIRCULATION AROUND THE
SLOW MOVING LOW OFF THE COAST SHOULD MAINTAIN A NORTH TO NORTHWEST
WIND OVER OUR WATERS WITH GUSTS OF 35 TO 40 KNOTS ANTICIPATED. A
SMALL CRAFT ADVISORY REMAINS IN PLACE FOR THE UPPER PART OF
DELAWARE BAY. GUSTS THERE SHOULD PEAK AROUND 30 KNOTS.

OUTLOOK...
FRIDAY - SATURDAY MORNING...SCA CONDITIONS PERSIST, ONCE THE GALES
COME DOWN, AS THE COASTAL LOW PRESSURE CONTINUES TO MOVE NORTHEAST
THOUGH THE PRESSURE GRADIENT SHOULD BE RELAXING BY FRIDAY NIGHT.
NORTHWEST WINDS AROUND 15 TO 20 KNOTS. MEDIUM CONFIDENCE.

SATURDAY...SUB-SCA. WESTERLY WINDS AROUND 15 KNOTS. MEDIUM
CONFIDENCE.

SUNDAY...PERIOD OF SCA POSSIBLE BEHIND A PASSING COLD FRONT. MEDIUM
CONFIDENCE.

MONDAY...SUB-SCA. MEDIUM CONFIDENCE.

&&

.TIDES/COASTAL FLOODING...
TIDES ARE RUNNING HIGH DUE TO A COMBINATION OF THE STORM OFF THE
COAST AND THE APPROACHING NEW MOON. HIGH TIDES WEDNESDAY EVENING
PEAKED JUST AT OR SLIGHTLY UNDER MINOR FLOOD LEVELS ALONG THE
OCEAN. THE NEXT HIGH TIDE...TODAY AROUND NOON...WILL HAVE A
SLIGHTLY HIGHER ASTRONOMICAL COMPONENT BUT WINDS WILL HAVE A MORE
PRONOUNCED NORTHWEST COMPONENT WHICH MIGHT HELP PUSH WATER AWAY
FROM THE COAST. RIGHT NOW THE ONLY FLOODING WE/RE EXPECTING WOULD
BE ISOLATED MINOR FLOODING BELOW OUR ESTABLISHED THRESHOLDS NEEDED
FOR AN ADVISORY. HOWEVER...WE WILL BE KEEPING AN EYE ON THE
SITUATION AND ISSUE ADDITIONAL STATEMENTS AS NECESSARY.

&&

.PHI WATCHES/WARNINGS/ADVISORIES...
PA...NONE.
NJ...NONE.
DE...NONE.
MD...NONE.
MARINE...GALE WARNING UNTIL 6 PM EDT THIS EVENING FOR ANZ431-450>455.
     SMALL CRAFT ADVISORY UNTIL 6 PM EDT THIS EVENING FOR ANZ430.

&&

$$
SYNOPSIS...GORSE
NEAR TERM...IOVINO/MEOLA
SHORT TERM...IOVINO
LONG TERM...GORSE/HEAVENER
AVIATION...HEAVENER/MEOLA
MARINE...IOVINO/HEAVENER
TIDES/COASTAL FLOODING...







000
FXUS61 KPHI 230151
AFDPHI

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
951 PM EDT WED OCT 22 2014

.SYNOPSIS...
AN AREA OF LOW PRESSURE OFFSHORE WILL CONTINUE TO STRENGTHEN AS IT
SLOWLY TRACKS NORTHEASTWARD OVERNIGHT. THIS STORM SYSTEM SHOULD
BE OFF THE NEW ENGLAND COAST LATER THURSDAY INTO FRIDAY, THEN MOVE
INTO NOVA SCOTIA FRIDAY NIGHT. HIGH PRESSURE IS FORECAST TO BUILD
TOWARD OUR AREA FROM THE SOUTHWEST FRIDAY AND SATURDAY, THEN A
COLD FRONT IS EXPECTED TO MOVE THROUGH SATURDAY NIGHT. HIGH
PRESSURE BUILDS IN FOR LATER SUNDAY AND MONDAY BEFORE SHIFTING
OFFSHORE TUESDAY.

&&

.NEAR TERM /UNTIL 6 AM THURSDAY MORNING/...
THE MID LEVEL LOW WAS CENTERED OVER THE WATERS OFF DELMARVA THIS
EVENING. IT SHOULD LIFT NORTHEASTWARD TO THE WATERS OFF NEW
JERSEY AND LONG ISLAND TOWARD MORNING. MEANWHILE, THE SURFACE LOW
WAS CENTERED ABOUT 150 MILES OFF THE DELAWARE COAST. THAT FEATURE
IS EXPECTED TO DRIFT ABOUT 50 MILES TO THE EAST DURING THE COURSE
OF THE NIGHT.

IT WILL REMAIN OVERCAST AND CHILLY IN OUR REGION OVERNIGHT. LOW
TEMPERATURES ARE ANTICIPATED TO BE MAINLY IN THE 40S. THE WIND
SHOULD BACK FROM THE NORTH TO THE NORTHWEST AT SPEEDS AROUND 10 TO
15 MPH WITH GUSTS INTO THE 20S.

RAIN ROTATING AROUND THE COASTAL SYSTEM WILL MAINTAIN A NORTHEAST
TO SOUTHWEST ORIENTATION IN OUR REGION OVERNIGHT. SOMETIMES THE
RAIN WILL COME DOWN A LITTLE HEAVIER THAN AT OTHER TIMES, BUT MOST
OF THIS PRECIPITATION IS STILL EXPECTED TO LIFT NORTH OF OUR AREA
DURING THE LATE OVERNIGHT PERIOE. RAINFALL AMOUNTS OVER THE ENTIRE
CWA SHOULD BE IN THE QUARTER TO HALF INCH RANGE, WITH LESSER
AMOUNTS POSSIBLE IN THE SOUTHERN POCONOES...AND WESTERN BERKS COUNTY.

&&

.SHORT TERM /6 AM THURSDAY MORNING THROUGH 6 PM THURSDAY/...
THE MID LEVEL LOW AND THE SURFACE LOW ARE FORECAST TO MOVE TOWARD
THE WATERS OFF CAPE COD ON THURSDAY. THE PRECIPITATION ASSOCIATED
WITH THE COASTAL SYSTEM WILL BEGIN TO LIFT NORTHEASTWARD, AS WELL.

WE ARE EXPECTING THE RAIN TO BECOME SHOWERY AND END GRADUALLY FROM
SOUTHWEST TO NORTHEAST ON THURSDAY.

THE SKY SHOULD REMAIN CLOUDY WITH A NORTHWEST WIND IN THE 10 TO 20
MPH RANGE WITH GUSTS OF 20 TO 30 MPH. THE CLOUDS AND THE NORTHWEST
FLOW WILL LIKELY KEEP TEMPERATURES FROM GETTING ABOVE THE 50S ON
THURSDAY AFTERNOON.

&&

.LONG TERM /THURSDAY NIGHT THROUGH WEDNESDAY/...
MODEL CONSENSUS THROUGH THE FIRST COUPLE DAYS OF THE EXTENDED IS
PRETTY GOOD, BUT ONCE YOU GET PAST SATURDAY A MUCH LARGER SPREAD IS
SEEN. WE WILL, HOWEVER, BE TRANSITIONING FROM TROUGHINESS TO DEGREES
OF RIDGING THROUGH THE EXTENDED, STARTING BY EARLY NEXT WEEK. FOR
THE MOST PART WE MAINTAIN A RELATIVELY DRY LONGTERM FROM SATURDAY
ONWARD AS RIDGING BEGINS TO BUILD TO OUR SOUTH-SOUTHWEST.

FRIDAY...UPPER LEVEL LOW CONTINUES TO SPIN AND PULL AWAY TO OUR
NORTHEAST WITH JUST SOME LINGERING BACKSIDE SHOWERS POSSIBLE ACROSS OUR
NORTHERN ZONES. THE OVERALL TREND ON FRIDAY IS FOR DRYING AS THE
STRONG PRESSURE GRADIENT AND NORTHWEST WINDS REMAIN IN PLACE.
TEMPERATURES SHOULD BE ABLE TO REBOUND BACK IN THE LOW TO MID-60S
WITH LESS CLOUD COVER THAN PREVIOUS DAYS AND THE LACK OF SHOWERS.

SATURDAY AND SUNDAY...HIGH PRESSURE BUILDS TO OUR SOUTH SATURDAY,
HOWEVER A STRONG SHORT WAVE DIVING SOUTHEASTWARD FROM THE GREAT
LAKES WILL DIG ANOTHER UPPER-LEVEL TROUGH ACROSS THE NORTHEAST LATER
SATURDAY INTO SUNDAY. THIS WILL TOSS A COLD FRONT ACROSS OUR AREA
SATURDAY NIGHT BUT STILL UNSURE IF WE WILL SEE A DRY PASSAGE WITH
THIS SYSTEM. THINKING THAT THE ATMOSPHERE WILL NOT HAVE MUCH TIME TO
MODIFY AHEAD OF THE FRONT AND HOW MUCH INFLUENCE THE ENERGY WILL
HAVE AS IT COMES IN ON THE HEELS OF THE ONCE CUT-OFF LOW. WITH THE
LIMITED AMOUNT OF MOISTURE EXPECTED IT SHOULD RESULT IN A GENERALLY
DRY FRONTAL PASSAGE. THE ASSOCIATED SURFACE LOW LOOKS TO INTENSIFY
AS IS EXITS NEW ENGLAND, WHICH MEANS A TIGHTENING PRESSURE GRADIENT
DOWN INTO THE MID ATLANTIC SUNDAY. AS A RESULT, A BREEZY DAY MAY
OCCUR AS MIXING DEEPENS. HIGH PRESSURE THEN STARTS TO BUILD IN
SUNDAY NIGHT.

MONDAY - WEDNESDAY...AN UPPER-LEVEL RIDGE SLIDES TOWARD THE EAST
ALLOWING HIGH PRESSURE TO BUILD ACROSS OUR AREA MONDAY BEFORE
SHIFTING OFFSHORE TUESDAY. THIS IS EXPECTED TO RESULT IN WARMING
CONDITIONS, ESPECIALLY AS WAA DEVELOPS TUESDAY AHEAD OF THE NEXT
COLD FRONT. NO MAJOR CHANGES WERE MADE FOR THIS TIME FRAME, WITH
JUST SOME BLENDING IN OF THE NEW 12Z WPC GUIDANCE.

&&

.AVIATION /02Z THURSDAY THROUGH MONDAY/...
THE FOLLOWING DISCUSSION IS FOR KPHL, KPNE, KTTN, KABE, KRDG, KILG,
KMIV, KACY AND SURROUNDING AREAS.

GENERALLY, MVFR CEILINGS ARE ANTICIPATED THROUGH TONIGHT IN OUR
REGION. PERIODS OF RAIN ARE EXPECTED, WITH SOME BREAKS IN BETWEEN.

THE CEILINGS ARE FORECAST TO LIFT GRADUALLY INTO THE VFR CATEGORY
FROM SOUTHWEST TO NORTHEAST ON THURSDAY. THE RAIN IS ANTICIPATED TO
BECOME MORE SHOWERY AND IT SHOULD END AT OUR TAF SITES BY MID TO
LATE AFTERNOON.

THE WIND SHIFTED FROM NORTH TO NORTHWEST AFTER SUNSET, AND A
NORTHWEST FLOW IS EXPECTED OVERNIGHT AND THURSDAY. SUSTAINED
SPEEDS ARE EXPECTED TO BE AROUND 10 TO 15 KNOTS WITH GUSTS INTO
THE 20S OR HIGHER ON THURSDAY.

OUTLOOK...
FRIDAY...VFR. CONTINUED NORTHWEST WINDS WITH GUSTS AROUND 20 KNOTS.
SOME LINGERING SHOWERS POSSIBLE NORTH OF ABE. MEDIUM CONFIDENCE,
LOWER ON SHOWERS.

SATURDAY - SUNDAY...VFR. WINDS SHIFT TO THE WEST-SOUTHWEST. DRY COLD
FRONT PASSAGE EXPECTED LATE SATURDAY NIGHT. MEDIUM CONFIDENCE.

MONDAY...VFR.

&&

.MARINE...
THE GALE WARNING CONTINUES UNTIL 600 PM THURSDAY FOR OUR OCEAN
WATERS AND FOR THE LOWER PART OF DELAWARE BAY. THE CIRCULATION
AROUND THE SLOW MOVING LOW OFF THE COAST SHOULD MAINTAIN A NORTH
TO NORTHWEST WIND OVER OUR WATERS WITH GUSTS OF 35 TO 40 KNOTS
ANTICIPATED. A SMALL CRAFT ADVISORY REMAINS IN PLACE FOR THE UPPER
PART OF DELAWARE BAY. GUSTS THERE SHOULD PEAK AROUND 30 KNOTS.

OUTLOOK...
FRIDAY - SATURDAY MORNING...SCA CONDITIONS PERSIST, ONCE THE GALES
COME DOWN, AS THE COASTAL LOW PRESSURE CONTINUES TO MOVE NORTHEAST
THOUGH THE PRESSURE GRADIENT SHOULD BE RELAXING BY FRIDAY NIGHT.
NORTHWEST WINDS AROUND 15 TO 20 KNOTS. MEDIUM CONFIDENCE.

SATURDAY...SUB-SCA. WESTERLY WINDS AROUND 15 KNOTS. MEDIUM
CONFIDENCE.

SUNDAY...PERIOD OF SCA POSSIBLE BEHIND A PASSING COLD FRONT. MEDIUM
CONFIDENCE.

MONDAY...SUB-SCA. MEDIUM CONFIDENCE.

&&

.TIDES/COASTAL FLOODING...
TIDES ARE RUNNING HIGH DUE TO A COMBINATION OF THE STORM OFF THE
COAST AND THE APPROACHING NEW MOON. HIGH TIDES WEDNESDAY EVENING
PEAKED JUST AT OR SLIGHTLY UNDER MINOR FLOOD LEVELS ALONG THE
OCEAN. THE NEXT HIGH TIDE...THURSDAY MORNING AROUND NOON...WILL
HAVE A SLIGHTLY HIGHER ASTRONOMICAL COMPONENT BUT WINDS WILL HAVE
A MORE PRONOUNCED NORTHWEST COMPONENT WHICH MIGHT HELP PUSH WATER
AWAY FROM THE COAST. RIGHT NOW THE ONLY FLOODING WE/RE EXPECTING
WOULD BE ISOLATED MINOR FLOODING BELOW OUR ESTABLISHED THRESHOLDS
NEEDED FOR AN ADVISORY. HOWEVER...WE WILL BE KEEPING AN EYE ON THE
SITUATION AND ISSUE ADDITIONAL STATEMENTS AS NECESSARY.

&&

.PHI WATCHES/WARNINGS/ADVISORIES...
PA...NONE.
NJ...NONE.
DE...NONE.
MD...NONE.
MARINE...GALE WARNING UNTIL 6 PM EDT THURSDAY FOR ANZ431-450>455.
     SMALL CRAFT ADVISORY UNTIL 6 PM EDT THURSDAY FOR ANZ430.

&&

$$
SYNOPSIS...GORSE
NEAR TERM...IOVINO/MIKETTA
SHORT TERM...IOVINO
LONG TERM...GORSE/HEAVENER
AVIATION...IOVINO/HEAVENER/MIKETTA
MARINE...IOVINO/HEAVENER/MIKETTA
TIDES/COASTAL FLOODING...MIKETTA







000
FXUS61 KPHI 230151
AFDPHI

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
951 PM EDT WED OCT 22 2014

.SYNOPSIS...
AN AREA OF LOW PRESSURE OFFSHORE WILL CONTINUE TO STRENGTHEN AS IT
SLOWLY TRACKS NORTHEASTWARD OVERNIGHT. THIS STORM SYSTEM SHOULD
BE OFF THE NEW ENGLAND COAST LATER THURSDAY INTO FRIDAY, THEN MOVE
INTO NOVA SCOTIA FRIDAY NIGHT. HIGH PRESSURE IS FORECAST TO BUILD
TOWARD OUR AREA FROM THE SOUTHWEST FRIDAY AND SATURDAY, THEN A
COLD FRONT IS EXPECTED TO MOVE THROUGH SATURDAY NIGHT. HIGH
PRESSURE BUILDS IN FOR LATER SUNDAY AND MONDAY BEFORE SHIFTING
OFFSHORE TUESDAY.

&&

.NEAR TERM /UNTIL 6 AM THURSDAY MORNING/...
THE MID LEVEL LOW WAS CENTERED OVER THE WATERS OFF DELMARVA THIS
EVENING. IT SHOULD LIFT NORTHEASTWARD TO THE WATERS OFF NEW
JERSEY AND LONG ISLAND TOWARD MORNING. MEANWHILE, THE SURFACE LOW
WAS CENTERED ABOUT 150 MILES OFF THE DELAWARE COAST. THAT FEATURE
IS EXPECTED TO DRIFT ABOUT 50 MILES TO THE EAST DURING THE COURSE
OF THE NIGHT.

IT WILL REMAIN OVERCAST AND CHILLY IN OUR REGION OVERNIGHT. LOW
TEMPERATURES ARE ANTICIPATED TO BE MAINLY IN THE 40S. THE WIND
SHOULD BACK FROM THE NORTH TO THE NORTHWEST AT SPEEDS AROUND 10 TO
15 MPH WITH GUSTS INTO THE 20S.

RAIN ROTATING AROUND THE COASTAL SYSTEM WILL MAINTAIN A NORTHEAST
TO SOUTHWEST ORIENTATION IN OUR REGION OVERNIGHT. SOMETIMES THE
RAIN WILL COME DOWN A LITTLE HEAVIER THAN AT OTHER TIMES, BUT MOST
OF THIS PRECIPITATION IS STILL EXPECTED TO LIFT NORTH OF OUR AREA
DURING THE LATE OVERNIGHT PERIOE. RAINFALL AMOUNTS OVER THE ENTIRE
CWA SHOULD BE IN THE QUARTER TO HALF INCH RANGE, WITH LESSER
AMOUNTS POSSIBLE IN THE SOUTHERN POCONOES...AND WESTERN BERKS COUNTY.

&&

.SHORT TERM /6 AM THURSDAY MORNING THROUGH 6 PM THURSDAY/...
THE MID LEVEL LOW AND THE SURFACE LOW ARE FORECAST TO MOVE TOWARD
THE WATERS OFF CAPE COD ON THURSDAY. THE PRECIPITATION ASSOCIATED
WITH THE COASTAL SYSTEM WILL BEGIN TO LIFT NORTHEASTWARD, AS WELL.

WE ARE EXPECTING THE RAIN TO BECOME SHOWERY AND END GRADUALLY FROM
SOUTHWEST TO NORTHEAST ON THURSDAY.

THE SKY SHOULD REMAIN CLOUDY WITH A NORTHWEST WIND IN THE 10 TO 20
MPH RANGE WITH GUSTS OF 20 TO 30 MPH. THE CLOUDS AND THE NORTHWEST
FLOW WILL LIKELY KEEP TEMPERATURES FROM GETTING ABOVE THE 50S ON
THURSDAY AFTERNOON.

&&

.LONG TERM /THURSDAY NIGHT THROUGH WEDNESDAY/...
MODEL CONSENSUS THROUGH THE FIRST COUPLE DAYS OF THE EXTENDED IS
PRETTY GOOD, BUT ONCE YOU GET PAST SATURDAY A MUCH LARGER SPREAD IS
SEEN. WE WILL, HOWEVER, BE TRANSITIONING FROM TROUGHINESS TO DEGREES
OF RIDGING THROUGH THE EXTENDED, STARTING BY EARLY NEXT WEEK. FOR
THE MOST PART WE MAINTAIN A RELATIVELY DRY LONGTERM FROM SATURDAY
ONWARD AS RIDGING BEGINS TO BUILD TO OUR SOUTH-SOUTHWEST.

FRIDAY...UPPER LEVEL LOW CONTINUES TO SPIN AND PULL AWAY TO OUR
NORTHEAST WITH JUST SOME LINGERING BACKSIDE SHOWERS POSSIBLE ACROSS OUR
NORTHERN ZONES. THE OVERALL TREND ON FRIDAY IS FOR DRYING AS THE
STRONG PRESSURE GRADIENT AND NORTHWEST WINDS REMAIN IN PLACE.
TEMPERATURES SHOULD BE ABLE TO REBOUND BACK IN THE LOW TO MID-60S
WITH LESS CLOUD COVER THAN PREVIOUS DAYS AND THE LACK OF SHOWERS.

SATURDAY AND SUNDAY...HIGH PRESSURE BUILDS TO OUR SOUTH SATURDAY,
HOWEVER A STRONG SHORT WAVE DIVING SOUTHEASTWARD FROM THE GREAT
LAKES WILL DIG ANOTHER UPPER-LEVEL TROUGH ACROSS THE NORTHEAST LATER
SATURDAY INTO SUNDAY. THIS WILL TOSS A COLD FRONT ACROSS OUR AREA
SATURDAY NIGHT BUT STILL UNSURE IF WE WILL SEE A DRY PASSAGE WITH
THIS SYSTEM. THINKING THAT THE ATMOSPHERE WILL NOT HAVE MUCH TIME TO
MODIFY AHEAD OF THE FRONT AND HOW MUCH INFLUENCE THE ENERGY WILL
HAVE AS IT COMES IN ON THE HEELS OF THE ONCE CUT-OFF LOW. WITH THE
LIMITED AMOUNT OF MOISTURE EXPECTED IT SHOULD RESULT IN A GENERALLY
DRY FRONTAL PASSAGE. THE ASSOCIATED SURFACE LOW LOOKS TO INTENSIFY
AS IS EXITS NEW ENGLAND, WHICH MEANS A TIGHTENING PRESSURE GRADIENT
DOWN INTO THE MID ATLANTIC SUNDAY. AS A RESULT, A BREEZY DAY MAY
OCCUR AS MIXING DEEPENS. HIGH PRESSURE THEN STARTS TO BUILD IN
SUNDAY NIGHT.

MONDAY - WEDNESDAY...AN UPPER-LEVEL RIDGE SLIDES TOWARD THE EAST
ALLOWING HIGH PRESSURE TO BUILD ACROSS OUR AREA MONDAY BEFORE
SHIFTING OFFSHORE TUESDAY. THIS IS EXPECTED TO RESULT IN WARMING
CONDITIONS, ESPECIALLY AS WAA DEVELOPS TUESDAY AHEAD OF THE NEXT
COLD FRONT. NO MAJOR CHANGES WERE MADE FOR THIS TIME FRAME, WITH
JUST SOME BLENDING IN OF THE NEW 12Z WPC GUIDANCE.

&&

.AVIATION /02Z THURSDAY THROUGH MONDAY/...
THE FOLLOWING DISCUSSION IS FOR KPHL, KPNE, KTTN, KABE, KRDG, KILG,
KMIV, KACY AND SURROUNDING AREAS.

GENERALLY, MVFR CEILINGS ARE ANTICIPATED THROUGH TONIGHT IN OUR
REGION. PERIODS OF RAIN ARE EXPECTED, WITH SOME BREAKS IN BETWEEN.

THE CEILINGS ARE FORECAST TO LIFT GRADUALLY INTO THE VFR CATEGORY
FROM SOUTHWEST TO NORTHEAST ON THURSDAY. THE RAIN IS ANTICIPATED TO
BECOME MORE SHOWERY AND IT SHOULD END AT OUR TAF SITES BY MID TO
LATE AFTERNOON.

THE WIND SHIFTED FROM NORTH TO NORTHWEST AFTER SUNSET, AND A
NORTHWEST FLOW IS EXPECTED OVERNIGHT AND THURSDAY. SUSTAINED
SPEEDS ARE EXPECTED TO BE AROUND 10 TO 15 KNOTS WITH GUSTS INTO
THE 20S OR HIGHER ON THURSDAY.

OUTLOOK...
FRIDAY...VFR. CONTINUED NORTHWEST WINDS WITH GUSTS AROUND 20 KNOTS.
SOME LINGERING SHOWERS POSSIBLE NORTH OF ABE. MEDIUM CONFIDENCE,
LOWER ON SHOWERS.

SATURDAY - SUNDAY...VFR. WINDS SHIFT TO THE WEST-SOUTHWEST. DRY COLD
FRONT PASSAGE EXPECTED LATE SATURDAY NIGHT. MEDIUM CONFIDENCE.

MONDAY...VFR.

&&

.MARINE...
THE GALE WARNING CONTINUES UNTIL 600 PM THURSDAY FOR OUR OCEAN
WATERS AND FOR THE LOWER PART OF DELAWARE BAY. THE CIRCULATION
AROUND THE SLOW MOVING LOW OFF THE COAST SHOULD MAINTAIN A NORTH
TO NORTHWEST WIND OVER OUR WATERS WITH GUSTS OF 35 TO 40 KNOTS
ANTICIPATED. A SMALL CRAFT ADVISORY REMAINS IN PLACE FOR THE UPPER
PART OF DELAWARE BAY. GUSTS THERE SHOULD PEAK AROUND 30 KNOTS.

OUTLOOK...
FRIDAY - SATURDAY MORNING...SCA CONDITIONS PERSIST, ONCE THE GALES
COME DOWN, AS THE COASTAL LOW PRESSURE CONTINUES TO MOVE NORTHEAST
THOUGH THE PRESSURE GRADIENT SHOULD BE RELAXING BY FRIDAY NIGHT.
NORTHWEST WINDS AROUND 15 TO 20 KNOTS. MEDIUM CONFIDENCE.

SATURDAY...SUB-SCA. WESTERLY WINDS AROUND 15 KNOTS. MEDIUM
CONFIDENCE.

SUNDAY...PERIOD OF SCA POSSIBLE BEHIND A PASSING COLD FRONT. MEDIUM
CONFIDENCE.

MONDAY...SUB-SCA. MEDIUM CONFIDENCE.

&&

.TIDES/COASTAL FLOODING...
TIDES ARE RUNNING HIGH DUE TO A COMBINATION OF THE STORM OFF THE
COAST AND THE APPROACHING NEW MOON. HIGH TIDES WEDNESDAY EVENING
PEAKED JUST AT OR SLIGHTLY UNDER MINOR FLOOD LEVELS ALONG THE
OCEAN. THE NEXT HIGH TIDE...THURSDAY MORNING AROUND NOON...WILL
HAVE A SLIGHTLY HIGHER ASTRONOMICAL COMPONENT BUT WINDS WILL HAVE
A MORE PRONOUNCED NORTHWEST COMPONENT WHICH MIGHT HELP PUSH WATER
AWAY FROM THE COAST. RIGHT NOW THE ONLY FLOODING WE/RE EXPECTING
WOULD BE ISOLATED MINOR FLOODING BELOW OUR ESTABLISHED THRESHOLDS
NEEDED FOR AN ADVISORY. HOWEVER...WE WILL BE KEEPING AN EYE ON THE
SITUATION AND ISSUE ADDITIONAL STATEMENTS AS NECESSARY.

&&

.PHI WATCHES/WARNINGS/ADVISORIES...
PA...NONE.
NJ...NONE.
DE...NONE.
MD...NONE.
MARINE...GALE WARNING UNTIL 6 PM EDT THURSDAY FOR ANZ431-450>455.
     SMALL CRAFT ADVISORY UNTIL 6 PM EDT THURSDAY FOR ANZ430.

&&

$$
SYNOPSIS...GORSE
NEAR TERM...IOVINO/MIKETTA
SHORT TERM...IOVINO
LONG TERM...GORSE/HEAVENER
AVIATION...IOVINO/HEAVENER/MIKETTA
MARINE...IOVINO/HEAVENER/MIKETTA
TIDES/COASTAL FLOODING...MIKETTA







000
FXUS61 KPHI 230004
AFDPHI

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
804 PM EDT WED OCT 22 2014

.SYNOPSIS...
AN AREA OF LOW PRESSURE OFFSHORE WILL CONTINUE TO STRENGTHEN AS IT
SLOWLY TRACKS NORTHEASTWARD OVERNIGHT. THIS STORM SYSTEM SHOULD
BE OFF THE NEW ENGLAND COAST LATER THURSDAY INTO FRIDAY, THEN MOVE
INTO NOVA SCOTIA FRIDAY NIGHT. HIGH PRESSURE IS FORECAST TO BUILD
TOWARD OUR AREA FROM THE SOUTHWEST FRIDAY AND SATURDAY, THEN A
COLD FRONT IS EXPECTED TO MOVE THROUGH SATURDAY NIGHT. HIGH
PRESSURE BUILDS IN FOR LATER SUNDAY AND MONDAY BEFORE SHIFTING
OFFSHORE TUESDAY.

&&

.NEAR TERM /UNTIL 6 AM THURSDAY MORNING/...
THE MID LEVEL LOW WAS CENTERED OVER THE WATERS OFF DELMARVA THIS
EVENING. IT SHOULD LIFT NORTHEASTWARD TO THE WATERS OFF NEW
JERSEY AND LONG ISLAND TOWARD MORNING. MEANWHILE, THE SURFACE LOW
WAS CENTERED ABOUT 150 MILES OFF THE DELAWARE COAST. THAT FEATURE
IS EXPECTED TO DRIFT ABOUT 50 MILES TO THE EAST DURING THE COURSE
OF THE NIGHT.

IT WILL REMAIN OVERCAST AND CHILLY IN OUR REGION OVERNIGHT. LOW
TEMPERATURES ARE ANTICIPATED TO BE MAINLY IN THE 40S. THE WIND
SHOULD BACK FROM THE NORTH TO THE NORTHWEST AT SPEEDS AROUND 10 TO
15 MPH WITH GUSTS INTO THE 20S.

RAIN ROTATING AROUND THE COASTAL SYSTEM WILL MAINTAIN A NORTHEAST
TO SOUTHWEST ORIENTATION IN OUR REGION OVERNIGHT. SOMETIMES THE
RAIN WILL COME DOWN A LITTLE HEAVIER THAN AT OTHER TIMES, BUT MOST
OF THIS PRECIPITATION IS STILL EXPECTED TO LIFT NORTH OF OUR AREA
DURING THE LATE OVERNIGHT PERIOE. RAINFALL AMOUNTS OVER THE ENTIRE
CWA SHOULD BE IN THE QUARTER TO HALF INCH RANGE, WITH LESSER
AMOUNTS POSSIBLE IN THE SOUTHERN POCONOES...AND WESTERN BERKS COUNTY.

&&

.SHORT TERM /6 AM THURSDAY MORNING THROUGH 6 PM THURSDAY/...
THE MID LEVEL LOW AND THE SURFACE LOW ARE FORECAST TO MOVE TOWARD
THE WATERS OFF CAPE COD ON THURSDAY. THE PRECIPITATION ASSOCIATED
WITH THE COASTAL SYSTEM WILL BEGIN TO LIFT NORTHEASTWARD, AS WELL.

WE ARE EXPECTING THE RAIN TO BECOME SHOWERY AND END GRADUALLY FROM
SOUTHWEST TO NORTHEAST ON THURSDAY.

THE SKY SHOULD REMAIN CLOUDY WITH A NORTHWEST WIND IN THE 10 TO 20
MPH RANGE WITH GUSTS OF 20 TO 30 MPH. THE CLOUDS AND THE NORTHWEST
FLOW WILL LIKELY KEEP TEMPERATURES FROM GETTING ABOVE THE 50S ON
THURSDAY AFTERNOON.

&&

.LONG TERM /THURSDAY NIGHT THROUGH WEDNESDAY/...
MODEL CONSENSUS THROUGH THE FIRST COUPLE DAYS OF THE EXTENDED IS
PRETTY GOOD, BUT ONCE YOU GET PAST SATURDAY A MUCH LARGER SPREAD IS
SEEN. WE WILL, HOWEVER, BE TRANSITIONING FROM TROUGHINESS TO DEGREES
OF RIDGING THROUGH THE EXTENDED, STARTING BY EARLY NEXT WEEK. FOR
THE MOST PART WE MAINTAIN A RELATIVELY DRY LONGTERM FROM SATURDAY
ONWARD AS RIDGING BEGINS TO BUILD TO OUR SOUTH-SOUTHWEST.

FRIDAY...UPPER LEVEL LOW CONTINUES TO SPIN AND PULL AWAY TO OUR
NORTHEAST WITH JUST SOME LINGERING BACKSIDE SHOWERS POSSIBLE ACROSS OUR
NORTHERN ZONES. THE OVERALL TREND ON FRIDAY IS FOR DRYING AS THE
STRONG PRESSURE GRADIENT AND NORTHWEST WINDS REMAIN IN PLACE.
TEMPERATURES SHOULD BE ABLE TO REBOUND BACK IN THE LOW TO MID-60S
WITH LESS CLOUD COVER THAN PREVIOUS DAYS AND THE LACK OF SHOWERS.

SATURDAY AND SUNDAY...HIGH PRESSURE BUILDS TO OUR SOUTH SATURDAY,
HOWEVER A STRONG SHORT WAVE DIVING SOUTHEASTWARD FROM THE GREAT
LAKES WILL DIG ANOTHER UPPER-LEVEL TROUGH ACROSS THE NORTHEAST LATER
SATURDAY INTO SUNDAY. THIS WILL TOSS A COLD FRONT ACROSS OUR AREA
SATURDAY NIGHT BUT STILL UNSURE IF WE WILL SEE A DRY PASSAGE WITH
THIS SYSTEM. THINKING THAT THE ATMOSPHERE WILL NOT HAVE MUCH TIME TO
MODIFY AHEAD OF THE FRONT AND HOW MUCH INFLUENCE THE ENERGY WILL
HAVE AS IT COMES IN ON THE HEELS OF THE ONCE CUT-OFF LOW. WITH THE
LIMITED AMOUNT OF MOISTURE EXPECTED IT SHOULD RESULT IN A GENERALLY
DRY FRONTAL PASSAGE. THE ASSOCIATED SURFACE LOW LOOKS TO INTENSIFY
AS IS EXITS NEW ENGLAND, WHICH MEANS A TIGHTENING PRESSURE GRADIENT
DOWN INTO THE MID ATLANTIC SUNDAY. AS A RESULT, A BREEZY DAY MAY
OCCUR AS MIXING DEEPENS. HIGH PRESSURE THEN STARTS TO BUILD IN
SUNDAY NIGHT.

MONDAY - WEDNESDAY...AN UPPER-LEVEL RIDGE SLIDES TOWARD THE EAST
ALLOWING HIGH PRESSURE TO BUILD ACROSS OUR AREA MONDAY BEFORE
SHIFTING OFFSHORE TUESDAY. THIS IS EXPECTED TO RESULT IN WARMING
CONDITIONS, ESPECIALLY AS WAA DEVELOPS TUESDAY AHEAD OF THE NEXT
COLD FRONT. NO MAJOR CHANGES WERE MADE FOR THIS TIME FRAME, WITH
JUST SOME BLENDING IN OF THE NEW 12Z WPC GUIDANCE.

&&

.AVIATION /00Z THURSDAY THROUGH MONDAY/...
THE FOLLOWING DISCUSSION IS FOR KPHL, KPNE, KTTN, KABE, KRDG, KILG,
KMIV, KACY AND SURROUNDING AREAS.

GENERALLY, MVFR CEILINGS ARE ANTICIPATED THROUGH TONIGHT IN OUR
REGION. PERIODS OF RAIN ARE EXPECTED, WITH SOME BREAKS IN BETWEEN.

THE CEILINGS ARE FORECAST TO LIFT GRADUALLY INTO THE VFR CATEGORY
FROM SOUTHWEST TO NORTHEAST ON THURSDAY. THE RAIN IS ANTICIPATED TO
BECOME MORE SHOWERY AND IT SHOULD END AT OUR TAF SITES BY MID TO
LATE AFTERNOON.

THE WIND SHIFTED FROM NORTH TO NORTHWEST AFTER SUNSET, AND A
NORTHWEST FLOW IS EXPECTED OVERNIGHT AND THURSDAY. SUSTAINED
SPEEDS ARE EXPECTED TO BE AROUND 10 TO 15 KNOTS WITH GUSTS INTO
THE 20S OR HIGHER ON THURSDAY.

OUTLOOK...
FRIDAY...VFR. CONTINUED NORTHWEST WINDS WITH GUSTS AROUND 20 KNOTS.
SOME LINGERING SHOWERS POSSIBLE NORTH OF ABE. MEDIUM CONFIDENCE,
LOWER ON SHOWERS.

SATURDAY - SUNDAY...VFR. WINDS SHIFT TO THE WEST-SOUTHWEST. DRY COLD
FRONT PASSAGE EXPECTED LATE SATURDAY NIGHT. MEDIUM CONFIDENCE.

MONDAY...VFR.

&&

.MARINE...
THE GALE WARNING CONTINUES UNTIL 600 PM THURSDAY FOR OUR OCEAN
WATERS AND FOR THE LOWER PART OF DELAWARE BAY. THE CIRCULATION
AROUND THE SLOW MOVING LOW OFF THE COAST SHOULD MAINTAIN A NORTH
TO NORTHWEST WIND OVER OUR WATERS WITH GUSTS OF 35 TO 40 KNOTS
ANTICIPATED. A SMALL CRAFT ADVISORY REMAINS IN PLACE FOR THE UPPER
PART OF DELAWARE BAY. GUSTS THERE SHOULD PEAK AROUND 30 KNOTS.

OUTLOOK...
FRIDAY - SATURDAY MORNING...SCA CONDITIONS PERSIST, ONCE THE GALES
COME DOWN, AS THE COASTAL LOW PRESSURE CONTINUES TO MOVE NORTHEAST
THOUGH THE PRESSURE GRADIENT SHOULD BE RELAXING BY FRIDAY NIGHT.
NORTHWEST WINDS AROUND 15 TO 20 KNOTS. MEDIUM CONFIDENCE.

SATURDAY...SUB-SCA. WESTERLY WINDS AROUND 15 KNOTS. MEDIUM
CONFIDENCE.

SUNDAY...PERIOD OF SCA POSSIBLE BEHIND A PASSING COLD FRONT. MEDIUM
CONFIDENCE.

MONDAY...SUB-SCA. MEDIUM CONFIDENCE.

&&

.TIDES/COASTAL FLOODING...
TIDES ARE RUNNING HIGH DUE TO A COMBINATION OF THE STORM OFF THE
COAST AND THE APPROACHING NEW MOON. HIGH TIDES OCCUR THIS EVENING
BEFORE MIDNIGHT ALONG THE OCEAN, THEN AGAIN ON THURSDAY MORNING ALONG
THE OCEAN AROUND NOON. TOMMORROW/S HIGH TIDE HAS THE HIGHER
ASTRONOMICAL CONTRIBUTION, BUT BY THAT TIME THERE SHOULD BE A
WELL-ESTABLISHED NORTHWEST WIND. RIGHT NOW THE ONLY FLOODING WE/RE
EXPECTING WOULD BE ISOLATED MINOR FLOODING BELOW OUR ESTABLISHED
THRESHOLDS NEEDED FOR AN ADVISORY. HOWEVER...WE WILL BE KEEPING AN
EYE ON THE SITUATION AND ISSUE ANY ADDITIONAL STATEMENTS IF
NECESSARY.

&&

.PHI WATCHES/WARNINGS/ADVISORIES...
PA...NONE.
NJ...NONE.
DE...NONE.
MD...NONE.
MARINE...GALE WARNING UNTIL 6 PM EDT THURSDAY FOR ANZ431-450>455.
     SMALL CRAFT ADVISORY UNTIL 6 PM EDT THURSDAY FOR ANZ430.

&&

$$
SYNOPSIS...GORSE
NEAR TERM...IOVINO/MIKETTA
SHORT TERM...IOVINO
LONG TERM...GORSE/HEAVENER
AVIATION...IOVINO/HEAVENER/MIKETTA
MARINE...IOVINO/HEAVENER/MIKETTA
TIDES/COASTAL FLOODING...MIKETTA








000
FXUS61 KPHI 230004
AFDPHI

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
804 PM EDT WED OCT 22 2014

.SYNOPSIS...
AN AREA OF LOW PRESSURE OFFSHORE WILL CONTINUE TO STRENGTHEN AS IT
SLOWLY TRACKS NORTHEASTWARD OVERNIGHT. THIS STORM SYSTEM SHOULD
BE OFF THE NEW ENGLAND COAST LATER THURSDAY INTO FRIDAY, THEN MOVE
INTO NOVA SCOTIA FRIDAY NIGHT. HIGH PRESSURE IS FORECAST TO BUILD
TOWARD OUR AREA FROM THE SOUTHWEST FRIDAY AND SATURDAY, THEN A
COLD FRONT IS EXPECTED TO MOVE THROUGH SATURDAY NIGHT. HIGH
PRESSURE BUILDS IN FOR LATER SUNDAY AND MONDAY BEFORE SHIFTING
OFFSHORE TUESDAY.

&&

.NEAR TERM /UNTIL 6 AM THURSDAY MORNING/...
THE MID LEVEL LOW WAS CENTERED OVER THE WATERS OFF DELMARVA THIS
EVENING. IT SHOULD LIFT NORTHEASTWARD TO THE WATERS OFF NEW
JERSEY AND LONG ISLAND TOWARD MORNING. MEANWHILE, THE SURFACE LOW
WAS CENTERED ABOUT 150 MILES OFF THE DELAWARE COAST. THAT FEATURE
IS EXPECTED TO DRIFT ABOUT 50 MILES TO THE EAST DURING THE COURSE
OF THE NIGHT.

IT WILL REMAIN OVERCAST AND CHILLY IN OUR REGION OVERNIGHT. LOW
TEMPERATURES ARE ANTICIPATED TO BE MAINLY IN THE 40S. THE WIND
SHOULD BACK FROM THE NORTH TO THE NORTHWEST AT SPEEDS AROUND 10 TO
15 MPH WITH GUSTS INTO THE 20S.

RAIN ROTATING AROUND THE COASTAL SYSTEM WILL MAINTAIN A NORTHEAST
TO SOUTHWEST ORIENTATION IN OUR REGION OVERNIGHT. SOMETIMES THE
RAIN WILL COME DOWN A LITTLE HEAVIER THAN AT OTHER TIMES, BUT MOST
OF THIS PRECIPITATION IS STILL EXPECTED TO LIFT NORTH OF OUR AREA
DURING THE LATE OVERNIGHT PERIOE. RAINFALL AMOUNTS OVER THE ENTIRE
CWA SHOULD BE IN THE QUARTER TO HALF INCH RANGE, WITH LESSER
AMOUNTS POSSIBLE IN THE SOUTHERN POCONOES...AND WESTERN BERKS COUNTY.

&&

.SHORT TERM /6 AM THURSDAY MORNING THROUGH 6 PM THURSDAY/...
THE MID LEVEL LOW AND THE SURFACE LOW ARE FORECAST TO MOVE TOWARD
THE WATERS OFF CAPE COD ON THURSDAY. THE PRECIPITATION ASSOCIATED
WITH THE COASTAL SYSTEM WILL BEGIN TO LIFT NORTHEASTWARD, AS WELL.

WE ARE EXPECTING THE RAIN TO BECOME SHOWERY AND END GRADUALLY FROM
SOUTHWEST TO NORTHEAST ON THURSDAY.

THE SKY SHOULD REMAIN CLOUDY WITH A NORTHWEST WIND IN THE 10 TO 20
MPH RANGE WITH GUSTS OF 20 TO 30 MPH. THE CLOUDS AND THE NORTHWEST
FLOW WILL LIKELY KEEP TEMPERATURES FROM GETTING ABOVE THE 50S ON
THURSDAY AFTERNOON.

&&

.LONG TERM /THURSDAY NIGHT THROUGH WEDNESDAY/...
MODEL CONSENSUS THROUGH THE FIRST COUPLE DAYS OF THE EXTENDED IS
PRETTY GOOD, BUT ONCE YOU GET PAST SATURDAY A MUCH LARGER SPREAD IS
SEEN. WE WILL, HOWEVER, BE TRANSITIONING FROM TROUGHINESS TO DEGREES
OF RIDGING THROUGH THE EXTENDED, STARTING BY EARLY NEXT WEEK. FOR
THE MOST PART WE MAINTAIN A RELATIVELY DRY LONGTERM FROM SATURDAY
ONWARD AS RIDGING BEGINS TO BUILD TO OUR SOUTH-SOUTHWEST.

FRIDAY...UPPER LEVEL LOW CONTINUES TO SPIN AND PULL AWAY TO OUR
NORTHEAST WITH JUST SOME LINGERING BACKSIDE SHOWERS POSSIBLE ACROSS OUR
NORTHERN ZONES. THE OVERALL TREND ON FRIDAY IS FOR DRYING AS THE
STRONG PRESSURE GRADIENT AND NORTHWEST WINDS REMAIN IN PLACE.
TEMPERATURES SHOULD BE ABLE TO REBOUND BACK IN THE LOW TO MID-60S
WITH LESS CLOUD COVER THAN PREVIOUS DAYS AND THE LACK OF SHOWERS.

SATURDAY AND SUNDAY...HIGH PRESSURE BUILDS TO OUR SOUTH SATURDAY,
HOWEVER A STRONG SHORT WAVE DIVING SOUTHEASTWARD FROM THE GREAT
LAKES WILL DIG ANOTHER UPPER-LEVEL TROUGH ACROSS THE NORTHEAST LATER
SATURDAY INTO SUNDAY. THIS WILL TOSS A COLD FRONT ACROSS OUR AREA
SATURDAY NIGHT BUT STILL UNSURE IF WE WILL SEE A DRY PASSAGE WITH
THIS SYSTEM. THINKING THAT THE ATMOSPHERE WILL NOT HAVE MUCH TIME TO
MODIFY AHEAD OF THE FRONT AND HOW MUCH INFLUENCE THE ENERGY WILL
HAVE AS IT COMES IN ON THE HEELS OF THE ONCE CUT-OFF LOW. WITH THE
LIMITED AMOUNT OF MOISTURE EXPECTED IT SHOULD RESULT IN A GENERALLY
DRY FRONTAL PASSAGE. THE ASSOCIATED SURFACE LOW LOOKS TO INTENSIFY
AS IS EXITS NEW ENGLAND, WHICH MEANS A TIGHTENING PRESSURE GRADIENT
DOWN INTO THE MID ATLANTIC SUNDAY. AS A RESULT, A BREEZY DAY MAY
OCCUR AS MIXING DEEPENS. HIGH PRESSURE THEN STARTS TO BUILD IN
SUNDAY NIGHT.

MONDAY - WEDNESDAY...AN UPPER-LEVEL RIDGE SLIDES TOWARD THE EAST
ALLOWING HIGH PRESSURE TO BUILD ACROSS OUR AREA MONDAY BEFORE
SHIFTING OFFSHORE TUESDAY. THIS IS EXPECTED TO RESULT IN WARMING
CONDITIONS, ESPECIALLY AS WAA DEVELOPS TUESDAY AHEAD OF THE NEXT
COLD FRONT. NO MAJOR CHANGES WERE MADE FOR THIS TIME FRAME, WITH
JUST SOME BLENDING IN OF THE NEW 12Z WPC GUIDANCE.

&&

.AVIATION /00Z THURSDAY THROUGH MONDAY/...
THE FOLLOWING DISCUSSION IS FOR KPHL, KPNE, KTTN, KABE, KRDG, KILG,
KMIV, KACY AND SURROUNDING AREAS.

GENERALLY, MVFR CEILINGS ARE ANTICIPATED THROUGH TONIGHT IN OUR
REGION. PERIODS OF RAIN ARE EXPECTED, WITH SOME BREAKS IN BETWEEN.

THE CEILINGS ARE FORECAST TO LIFT GRADUALLY INTO THE VFR CATEGORY
FROM SOUTHWEST TO NORTHEAST ON THURSDAY. THE RAIN IS ANTICIPATED TO
BECOME MORE SHOWERY AND IT SHOULD END AT OUR TAF SITES BY MID TO
LATE AFTERNOON.

THE WIND SHIFTED FROM NORTH TO NORTHWEST AFTER SUNSET, AND A
NORTHWEST FLOW IS EXPECTED OVERNIGHT AND THURSDAY. SUSTAINED
SPEEDS ARE EXPECTED TO BE AROUND 10 TO 15 KNOTS WITH GUSTS INTO
THE 20S OR HIGHER ON THURSDAY.

OUTLOOK...
FRIDAY...VFR. CONTINUED NORTHWEST WINDS WITH GUSTS AROUND 20 KNOTS.
SOME LINGERING SHOWERS POSSIBLE NORTH OF ABE. MEDIUM CONFIDENCE,
LOWER ON SHOWERS.

SATURDAY - SUNDAY...VFR. WINDS SHIFT TO THE WEST-SOUTHWEST. DRY COLD
FRONT PASSAGE EXPECTED LATE SATURDAY NIGHT. MEDIUM CONFIDENCE.

MONDAY...VFR.

&&

.MARINE...
THE GALE WARNING CONTINUES UNTIL 600 PM THURSDAY FOR OUR OCEAN
WATERS AND FOR THE LOWER PART OF DELAWARE BAY. THE CIRCULATION
AROUND THE SLOW MOVING LOW OFF THE COAST SHOULD MAINTAIN A NORTH
TO NORTHWEST WIND OVER OUR WATERS WITH GUSTS OF 35 TO 40 KNOTS
ANTICIPATED. A SMALL CRAFT ADVISORY REMAINS IN PLACE FOR THE UPPER
PART OF DELAWARE BAY. GUSTS THERE SHOULD PEAK AROUND 30 KNOTS.

OUTLOOK...
FRIDAY - SATURDAY MORNING...SCA CONDITIONS PERSIST, ONCE THE GALES
COME DOWN, AS THE COASTAL LOW PRESSURE CONTINUES TO MOVE NORTHEAST
THOUGH THE PRESSURE GRADIENT SHOULD BE RELAXING BY FRIDAY NIGHT.
NORTHWEST WINDS AROUND 15 TO 20 KNOTS. MEDIUM CONFIDENCE.

SATURDAY...SUB-SCA. WESTERLY WINDS AROUND 15 KNOTS. MEDIUM
CONFIDENCE.

SUNDAY...PERIOD OF SCA POSSIBLE BEHIND A PASSING COLD FRONT. MEDIUM
CONFIDENCE.

MONDAY...SUB-SCA. MEDIUM CONFIDENCE.

&&

.TIDES/COASTAL FLOODING...
TIDES ARE RUNNING HIGH DUE TO A COMBINATION OF THE STORM OFF THE
COAST AND THE APPROACHING NEW MOON. HIGH TIDES OCCUR THIS EVENING
BEFORE MIDNIGHT ALONG THE OCEAN, THEN AGAIN ON THURSDAY MORNING ALONG
THE OCEAN AROUND NOON. TOMMORROW/S HIGH TIDE HAS THE HIGHER
ASTRONOMICAL CONTRIBUTION, BUT BY THAT TIME THERE SHOULD BE A
WELL-ESTABLISHED NORTHWEST WIND. RIGHT NOW THE ONLY FLOODING WE/RE
EXPECTING WOULD BE ISOLATED MINOR FLOODING BELOW OUR ESTABLISHED
THRESHOLDS NEEDED FOR AN ADVISORY. HOWEVER...WE WILL BE KEEPING AN
EYE ON THE SITUATION AND ISSUE ANY ADDITIONAL STATEMENTS IF
NECESSARY.

&&

.PHI WATCHES/WARNINGS/ADVISORIES...
PA...NONE.
NJ...NONE.
DE...NONE.
MD...NONE.
MARINE...GALE WARNING UNTIL 6 PM EDT THURSDAY FOR ANZ431-450>455.
     SMALL CRAFT ADVISORY UNTIL 6 PM EDT THURSDAY FOR ANZ430.

&&

$$
SYNOPSIS...GORSE
NEAR TERM...IOVINO/MIKETTA
SHORT TERM...IOVINO
LONG TERM...GORSE/HEAVENER
AVIATION...IOVINO/HEAVENER/MIKETTA
MARINE...IOVINO/HEAVENER/MIKETTA
TIDES/COASTAL FLOODING...MIKETTA








000
FXUS61 KPHI 222047
AFDPHI

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
447 PM EDT WED OCT 22 2014

.SYNOPSIS...
AN AREA OF LOW PRESSURE OFFSHORE WILL CONTINUE TO STRENGTHEN AS IT
SLOWLY TRACKS NORTHEASTWARD TONIGHT. THIS STORM SYSTEM SHOULD BE OFF
THE NEW ENGLAND COAST LATER THURSDAY INTO FRIDAY, THEN MOVE INTO
NOVA SCOTIA FRIDAY NIGHT. HIGH PRESSURE IS FORECAST TO BUILD TOWARD
OUR AREA FROM THE SOUTHWEST FRIDAY AND SATURDAY, THEN A COLD FRONT
IS EXPECTED TO MOVE THROUGH SATURDAY NIGHT. HIGH PRESSURE BUILDS IN
FOR LATER SUNDAY AND MONDAY BEFORE SHIFTING OFFSHORE TUESDAY.

&&

.NEAR TERM /UNTIL 6 AM THURSDAY MORNING/...
HE MID LEVEL LOW WAS CENTERED OVER THE WATERS OFF VIRGINIA THIS
AFTERNOON. IT SHOULD LIFT NORTHEASTWARD TO THE WATERS OFF NEW JERSEY
AND LONG ISLAND TOWARD MORNING. MEANWHILE, THE SURFACE LOW WAS
CENTERED ABOUT 150 MILES OFF THE DELAWARE COAST. THAT FEATURE IS
EXPECTED TO DRIFT ABOUT 50 MILES TO THE EAST DURING THE COURSE OF
THE NIGHT.

IT WILL REMAIN OVERCAST AND CHILLY IN OUR REGION FOR TONIGHT. LOW
TEMPERATURES ARE ANTICIPATED TO BE MAINLY IN THE 40S. THE WIND
SHOULD BACK FROM THE NORTH TO THE NORTHWEST AT SPEEDS AROUND 10 TO
15 MPH WITH GUSTS INTO THE 20S.

THE RAIN THAT WAS ROTATING AROUND THE COASTAL SYSTEM WILL LIKELY
MAINTAIN A NORTHEAST TO SOUTHWEST ORIENTATION IN OUR REGION DURING
THE NIGHT. IT SHOULD SETTLE PRIMARILY OVER THE COASTAL PLAIN IN NEW
JERSEY AND DELAWARE DURING THE EVENING BEFORE LIFTING NORTHWARD
OVERNIGHT. THERE MAY BE A PERIOD OF MODERATE RAINFALL IN COASTAL
AREAS OF NEW JERSEY THIS EVENING DEPENDING UPON HOW FAR WESTWARD THE
HEAVIER RAIN BANDS OFF THE COAST MOVE. OTHERWISE, RAINFALL AMOUNTS
IN DELAWARE AND NEW JERSEY SHOULD BE MOSTLY IN THE QUARTER TO HALF
INCH RANGE, WITH LESS THAN A QUARTER INCH OF RAIN EXPECTED IN
EASTERN PENNSYLVANIA AND NORTHEASTERN MARYLAND.

&&

.SHORT TERM /6 AM THURSDAY MORNING THROUGH 6 PM THURSDAY/...
THE MID LEVEL LOW AND THE SURFACE LOW ARE FORECAST TO MOVE TOWARD
THE WATERS OFF CAPE COD ON THURSDAY. THE PRECIPITATION ASSOCIATED
WITH THE COASTAL SYSTEM WILL BEGIN TO LIFT NORTHEASTWARD, AS WELL.

WE ARE EXPECTING THE RAIN TO BECOME SHOWERY AND END GRADUALLY FROM
SOUTHWEST TO NORTHEAST ON THURSDAY.

THE SKY SHOULD REMAIN CLOUDY WITH A NORTHWEST WIND IN THE 10 TO 20
MPH RANGE WITH GUSTS OF 20 TO 30 MPH. THE CLOUDS AND THE NORTHWEST
FLOW WILL LIKELY KEEP TEMPERATURES FROM GETTING ABOVE THE 50S ON
THURSDAY AFTERNOON.

&&

.LONG TERM /THURSDAY NIGHT THROUGH WEDNESDAY/...
MODEL CONSENSUS THROUGH THE FIRST COUPLE DAYS OF THE EXTENDED IS
PRETTY GOOD, BUT ONCE YOU GET PAST SATURDAY A MUCH LARGER SPREAD IS
SEEN. WE WILL, HOWEVER, BE TRANSITIONING FROM TROUGHINESS TO DEGREES
OF RIDGING THROUGH THE EXTENDED, STARTING BY EARLY NEXT WEEK. FOR
THE MOST PART WE MAINTAIN A RELATIVELY DRY LONGTERM FROM SATURDAY
ONWARD AS RIDGING BEGINS TO BUILD TO OUR SOUTH-SOUTHWEST.

FRIDAY...UPPER LEVEL LOW CONTINUES TO SPIN AND PULL AWAY TO OUR
NORTHEAST WITH JUST SOME LINGERING BACKSIDE SHOWERS POSSIBLE ACROSS OUR
NORTHERN ZONES. THE OVERALL TREND ON FRIDAY IS FOR DRYING AS THE
STRONG PRESSURE GRADIENT AND NORTHWEST WINDS REMAIN IN PLACE.
TEMPERATURES SHOULD BE ABLE TO REBOUND BACK IN THE LOW TO MID-60S
WITH LESS CLOUD COVER THAN PREVIOUS DAYS AND THE LACK OF SHOWERS.

SATURDAY AND SUNDAY...HIGH PRESSURE BUILDS TO OUR SOUTH SATURDAY,
HOWEVER A STRONG SHORT WAVE DIVING SOUTHEASTWARD FROM THE GREAT
LAKES WILL DIG ANOTHER UPPER-LEVEL TROUGH ACROSS THE NORTHEAST LATER
SATURDAY INTO SUNDAY. THIS WILL TOSS A COLD FRONT ACROSS OUR AREA
SATURDAY NIGHT BUT STILL UNSURE IF WE WILL SEE A DRY PASSAGE WITH
THIS SYSTEM. THINKING THAT THE ATMOSPHERE WILL NOT HAVE MUCH TIME TO
MODIFY AHEAD OF THE FRONT AND HOW MUCH INFLUENCE THE ENERGY WILL
HAVE AS IT COMES IN ON THE HEELS OF THE ONCE CUT-OFF LOW. WITH THE
LIMITED AMOUNT OF MOISTURE EXPECTED IT SHOULD RESULT IN A GENERALLY
DRY FRONTAL PASSAGE. THE ASSOCIATED SURFACE LOW LOOKS TO INTENSIFY
AS IS EXITS NEW ENGLAND, WHICH MEANS A TIGHTENING PRESSURE GRADIENT
DOWN INTO THE MID ATLANTIC SUNDAY. AS A RESULT, A BREEZY DAY MAY
OCCUR AS MIXING DEEPENS. HIGH PRESSURE THEN STARTS TO BUILD IN
SUNDAY NIGHT.

MONDAY - WEDNESDAY...AN UPPER-LEVEL RIDGE SLIDES TOWARD THE EAST
ALLOWING HIGH PRESSURE TO BUILD ACROSS OUR AREA MONDAY BEFORE
SHIFTING OFFSHORE TUESDAY. THIS IS EXPECTED TO RESULT IN WARMING
CONDITIONS, ESPECIALLY AS WAA DEVELOPS TUESDAY AHEAD OF THE NEXT
COLD FRONT. NO MAJOR CHANGES WERE MADE FOR THIS TIME FRAME, WITH
JUST SOME BLENDING IN OF THE NEW 12Z WPC GUIDANCE.

&&

.AVIATION /21Z WEDNESDAY THROUGH MONDAY/...
THE FOLLOWING DISCUSSION IS FOR KPHL, KPNE, KTTN, KABE, KRDG, KILG,
KMIV, KACY AND SURROUNDING AREAS.

GENERALLY, MVFR CEILINGS ARE ANTICIPATED THROUGH TONIGHT IN OUR
REGION. PERIODS OF RAIN ARE EXPECTED WITH THE HEAVIEST OF THE
RAINFALL BEING MAINLY IN NEW JERSEY.

THE CEILINGS ARE FORECAST TO LIFT GRADUALLY INTO THE VFR CATEGORY
FROM SOUTHWEST TO NORTHEAST ON THURSDAY. THE RAIN IS ANTICIPATED TO
BECOME MORE SHOWERY AND IT SHOULD END AT OUR TAF SITES BY MID TO
LATE AFTERNOON.

THE WIND IS FORECAST TO FAVOR THE NORTH INTO THIS EVENING, THEN IT
SHOULD BACK TO THE NORTHWEST FOR OVERNIGHT AND THURSDAY. SUSTAINED
SPEEDS ARE EXPECTED TO BE AROUND 10 TO 15 KNOTS WITH GUSTS INTO THE
20S.

OUTLOOK...
FRIDAY...VFR. CONTINUED NORTHWEST WINDS WITH GUSTS AROUND 20 KNOTS.
SOME LINGERING SHOWERS POSSIBLE NORTH OF ABE. MEDIUM CONFIDENCE,
LOWER ON SHOWERS.

SATURDAY - SUNDAY...VFR. WINDS SHIFT TO THE WEST-SOUTHWEST. DRY COLD
FRONT PASSAGE EXPECTED LATE SATURDAY NIGHT. MEDIUM CONFIDENCE.

MONDAY...VFR.

&&

.MARINE...
THE GALE WARNING HAS BEEN EXTENDED UNTIL 600 PM THURSDAY FOR OUR
OCEAN WATERS AND FOR THE LOWER PART OF DELAWARE BAY. THE CIRCULATION
AROUND THE SLOW MOVING LOW OFF THE COAST SHOULD MAINTAIN A NORTH TO
NORTHWEST WIND OVER OUR WATERS WITH GUSTS OF 35 TO 40 KNOTS
ANTICIPATED. A SMALL CRAFT ADVISORY REMAINS IN PLACE FOR THE UPPER
PART OF DELAWARE BAY. GUSTS THERE SHOULD PEAK AROUND 30 KNOTS.

OUTLOOK...
FRIDAY - SATURDAY MORNING...SCA CONDITIONS PERSIST, ONCE THE GALES
COME DOWN, AS THE COASTAL LOW PRESSURE CONTINUES TO MOVE NORTHEAST
THOUGH THE PRESSURE GRADIENT SHOULD BE RELAXING BY FRIDAY NIGHT.
NORTHWEST WINDS AROUND 15 TO 20 KNOTS. MEDIUM CONFIDENCE.

SATURDAY...SUB-SCA. WESTERLY WINDS AROUND 15 KNOTS. MEDIUM
CONFIDENCE.

SUNDAY...PERIOD OF SCA POSSIBLE BEHIND A PASSING COLD FRONT. MEDIUM
CONFIDENCE.

MONDAY...SUB-SCA. MEDIUM CONFIDENCE.

&&

.TIDES/COASTAL FLOODING...
TIDES ARE RUNNING HIGH DUE TO A COMBINATION OF THE STORM OFF THE
COAST AND THE APPROACHING NEW MOON. HIGH TIDES OCCUR THIS EVENING
BEFORE MIDNIGHT ALONG THE OCEAN, THEN AGAIN ON THURSDAY MORNING ALONG
THE OCEAN AROUND NOON. TOMMORROW/S HIGH TIDE HAS THE HIGHER
ASTRONOMICAL CONTRIBUTION, BUT BY THAT TIME THERE SHOULD BE A
WELL-ESTABLISHED NORTHWEST WIND. RIGHT NOW THE ONLY FLOODING WE/RE
EXPECTING WOULD BE ISOLATED MINOR FLOODING BELOW OUR ESTABLISHED
THRESHOLDS NEEDED FOR AN ADVISORY. HOWEVER...WE WILL BE KEEPING AN
EYE ON THE SITUATION AND ISSUE ANY ADDITIONAL STATEMENTS IF
NECESSARY.


&&

.PHI WATCHES/WARNINGS/ADVISORIES...
PA...NONE.
NJ...NONE.
DE...NONE.
MD...NONE.
MARINE...GALE WARNING UNTIL 6 PM EDT THURSDAY FOR ANZ431-450>455.
     SMALL CRAFT ADVISORY UNTIL 6 PM EDT THURSDAY FOR ANZ430.

&&

$$
SYNOPSIS...GORSE
NEAR TERM...IOVINO
SHORT TERM...IOVINO
LONG TERM...GORSE/HEAVENER
AVIATION...IOVINO/HEAVENER
MARINE...IOVINO/HEAVENER
TIDES/COASTAL FLOODING...MIKETTA








000
FXUS61 KPHI 222000
AFDPHI

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
400 PM EDT WED OCT 22 2014

.SYNOPSIS...
AN AREA OF LOW PRESSURE OFFSHORE WILL CONTINUE TO STRENGTHEN AS IT
SLOWLY TRACKS NORTHEASTWARD TONIGHT. THIS STORM SYSTEM SHOULD BE OFF
THE NEW ENGLAND COAST LATER THURSDAY INTO FRIDAY, THEN MOVE INTO
NOVA SCOTIA FRIDAY NIGHT. HIGH PRESSURE IS FORECAST TO BUILD TOWARD
OUR AREA FROM THE SOUTHWEST FRIDAY AND SATURDAY, THEN A COLD FRONT
IS EXPECTED TO MOVE THROUGH SATURDAY NIGHT. HIGH PRESSURE BUILDS IN
FOR LATER SUNDAY AND MONDAY BEFORE SHIFTING OFFSHORE TUESDAY.

&&

.NEAR TERM /UNTIL 6 AM THURSDAY MORNING/...
HE MID LEVEL LOW WAS CENTERED OVER THE WATERS OFF VIRGINIA THIS
AFTERNOON. IT SHOULD LIFT NORTHEASTWARD TO THE WATERS OFF NEW JERSEY
AND LONG ISLAND TOWARD MORNING. MEANWHILE, THE SURFACE LOW WAS
CENTERED ABOUT 150 MILES OFF THE DELAWARE COAST. THAT FEATURE IS
EXPECTED TO DRIFT ABOUT 50 MILES TO THE EAST DURING THE COURSE OF
THE NIGHT.

IT WILL REMAIN OVERCAST AND CHILLY IN OUR REGION FOR TONIGHT. LOW
TEMPERATURES ARE ANTICIPATED TO BE MAINLY IN THE 40S. THE WIND
SHOULD BACK FROM THE NORTH TO THE NORTHWEST AT SPEEDS AROUND 10 TO
15 MPH WITH GUSTS INTO THE 20S.

THE RAIN THAT WAS ROTATING AROUND THE COASTAL SYSTEM WILL LIKELY
MAINTAIN A NORTHEAST TO SOUTHWEST ORIENTATION IN OUR REGION DURING
THE NIGHT. IT SHOULD SETTLE PRIMARILY OVER THE COASTAL PLAIN IN NEW
JERSEY AND DELAWARE DURING THE EVENING BEFORE LIFTING NORTHWARD
OVERNIGHT. THERE MAY BE A PERIOD OF MODERATE RAINFALL IN COASTAL
AREAS OF NEW JERSEY THIS EVENING DEPENDING UPON HOW FAR WESTWARD THE
HEAVIER RAIN BANDS OFF THE COAST MOVE. OTHERWISE, RAINFALL AMOUNTS
IN DELAWARE AND NEW JERSEY SHOULD BE MOSTLY IN THE QUARTER TO HALF
INCH RANGE, WITH LESS THAN A QUARTER INCH OF RAIN EXPECTED IN
EASTERN PENNSYLVANIA AND NORTHEASTERN MARYLAND.

&&

.SHORT TERM /6 AM THURSDAY MORNING THROUGH 6 PM THURSDAY/...
THE MID LEVEL LOW AND THE SURFACE LOW ARE FORECAST TO MOVE TOWARD
THE WATERS OFF CAPE COD ON THURSDAY. THE PRECIPITATION ASSOCIATED
WITH THE COASTAL SYSTEM WILL BEGIN TO LIFT NORTHEASTWARD, AS WELL.

WE ARE EXPECTING THE RAIN TO BECOME SHOWERY AND END GRADUALLY FROM
SOUTHWEST TO NORTHEAST ON THURSDAY.

THE SKY SHOULD REMAIN CLOUDY WITH A NORTHWEST WIND IN THE 10 TO 20
MPH RANGE WITH GUSTS OF 20 TO 30 MPH. THE CLOUDS AND THE NORTHWEST
FLOW WILL LIKELY KEEP TEMPERATURES FROM GETTING ABOVE THE 50S ON
THURSDAY AFTERNOON.

&&

.LONG TERM /THURSDAY NIGHT THROUGH WEDNESDAY/...
MODEL CONSENSUS THROUGH THE FIRST COUPLE DAYS OF THE EXTENDED IS
PRETTY GOOD, BUT ONCE YOU GET PAST SATURDAY A MUCH LARGER SPREAD IS
SEEN. WE WILL, HOWEVER, BE TRANSITIONING FROM TROUGHINESS TO DEGREES
OF RIDGING THROUGH THE EXTENDED, STARTING BY EARLY NEXT WEEK. FOR
THE MOST PART WE MAINTAIN A RELATIVELY DRY LONGTERM FROM SATURDAY
ONWARD AS RIDGING BEGINS TO BUILD TO OUR SOUTH-SOUTHWEST.

FRIDAY...UPPER LEVEL LOW CONTINUES TO SPIN AND PULL AWAY TO OUR
NORTHEAST WITH JUST SOME LINGERING BACKSIDE SHOWERS POSSIBLE ACROSS OUR
NORTHERN ZONES. THE OVERALL TREND ON FRIDAY IS FOR DRYING AS THE
STRONG PRESSURE GRADIENT AND NORTHWEST WINDS REMAIN IN PLACE.
TEMPERATURES SHOULD BE ABLE TO REBOUND BACK IN THE LOW TO MID-60S
WITH LESS CLOUD COVER THAN PREVIOUS DAYS AND THE LACK OF SHOWERS.

SATURDAY AND SUNDAY...HIGH PRESSURE BUILDS TO OUR SOUTH SATURDAY,
HOWEVER A STRONG SHORT WAVE DIVING SOUTHEASTWARD FROM THE GREAT
LAKES WILL DIG ANOTHER UPPER-LEVEL TROUGH ACROSS THE NORTHEAST LATER
SATURDAY INTO SUNDAY. THIS WILL TOSS A COLD FRONT ACROSS OUR AREA
SATURDAY NIGHT BUT STILL UNSURE IF WE WILL SEE A DRY PASSAGE WITH
THIS SYSTEM. THINKING THAT THE ATMOSPHERE WILL NOT HAVE MUCH TIME TO
MODIFY AHEAD OF THE FRONT AND HOW MUCH INFLUENCE THE ENERGY WILL
HAVE AS IT COMES IN ON THE HEELS OF THE ONCE CUT-OFF LOW. WITH THE
LIMITED AMOUNT OF MOISTURE EXPECTED IT SHOULD RESULT IN A GENERALLY
DRY FRONTAL PASSAGE. THE ASSOCIATED SURFACE LOW LOOKS TO INTENSIFY
AS IS EXITS NEW ENGLAND, WHICH MEANS A TIGHTENING PRESSURE GRADIENT
DOWN INTO THE MID ATLANTIC SUNDAY. AS A RESULT, A BREEZY DAY MAY
OCCUR AS MIXING DEEPENS. HIGH PRESSURE THEN STARTS TO BUILD IN
SUNDAY NIGHT.

MONDAY - WEDNESDAY...AN UPPER-LEVEL RIDGE SLIDES TOWARD THE EAST
ALLOWING HIGH PRESSURE TO BUILD ACROSS OUR AREA MONDAY BEFORE
SHIFTING OFFSHORE TUESDAY. THIS IS EXPECTED TO RESULT IN WARMING
CONDITIONS, ESPECIALLY AS WAA DEVELOPS TUESDAY AHEAD OF THE NEXT
COLD FRONT. NO MAJOR CHANGES WERE MADE FOR THIS TIME FRAME, WITH
JUST SOME BLENDING IN OF THE NEW 12Z WPC GUIDANCE.

&&

.AVIATION /20Z WEDNESDAY THROUGH MONDAY/...
THE FOLLOWING DISCUSSION IS FOR KPHL, KPNE, KTTN, KABE, KRDG, KILG,
KMIV, KACY AND SURROUNDING AREAS.

GENERALLY, MVFR CEILINGS ARE ANTICIPATED THROUGH TONIGHT IN OUR
REGION. PERIODS OF RAIN ARE EXPECTED WITH THE HEAVIEST OF THE
RAINFALL BEING MAINLY IN NEW JERSEY.

THE CEILINGS ARE FORECAST TO LIFT GRADUALLY INTO THE VFR CATEGORY
FROM SOUTHWEST TO NORTHEAST ON THURSDAY. THE RAIN IS ANTICIPATED TO
BECOME MORE SHOWERY AND IT SHOULD END AT OUR TAF SITES BY MID TO
LATE AFTERNOON.

THE WIND IS FORECAST TO FAVOR THE NORTH INTO THIS EVENING, THEN IT
SHOULD BACK TO THE NORTHWEST FOR OVERNIGHT AND THURSDAY. SUSTAINED
SPEEDS ARE EXPECTED TO BE AROUND 10 TO 15 KNOTS WITH GUSTS INTO THE
20S.

OUTLOOK...
FRIDAY...VFR. CONTINUED NORTHWEST WINDS WITH GUSTS AROUND 20 KNOTS.
SOME LINGERING SHOWERS POSSIBLE NORTH OF ABE. MEDIUM CONFIDENCE,
LOWER ON SHOWERS.

SATURDAY - SUNDAY...VFR. WINDS SHIFT TO THE WEST-SOUTHWEST. DRY COLD
FRONT PASSAGE EXPECTED LATE SATURDAY NIGHT. MEDIUM CONFIDENCE.

MONDAY...VFR.


&&

.MARINE...
THE GALE WARNING HAS BEEN EXTENDED UNTIL 600 PM THURSDAY FOR OUR
OCEAN WATERS AND FOR THE LOWER PART OF DELAWARE BAY. THE CIRCULATION
AROUND THE SLOW MOVING LOW OFF THE COAST SHOULD MAINTAIN A NORTH TO
NORTHWEST WIND OVER OUR WATERS WITH GUSTS OF 35 TO 40 KNOTS
ANTICIPATED. A SMALL CRAFT ADVISORY REMAINS IN PLACE FOR THE UPPER
PART OF DELAWARE BAY. GUSTS THERE SHOULD PEAK AROUND 30 KNOTS.

OUTLOOK...
FRIDAY - SATURDAY MORNING...SCA CONDITIONS PERSIST, ONCE THE GALES
COME DOWN, AS THE COASTAL LOW PRESSURE CONTINUES TO MOVE NORTHEAST
THOUGH THE PRESSURE GRADIENT SHOULD BE RELAXING BY FRIDAY NIGHT.
NORTHWEST WINDS AROUND 15 TO 20 KNOTS. MEDIUM CONFIDENCE.

SATURDAY...SUB-SCA. WESTERLY WINDS AROUND 15 KNOTS. MEDIUM
CONFIDENCE.

SUNDAY...PERIOD OF SCA POSSIBLE BEHIND A PASSING COLD FRONT. MEDIUM
CONFIDENCE.

MONDAY...SUB-SCA. MEDIUM CONFIDENCE.

&&

.PHI WATCHES/WARNINGS/ADVISORIES...
PA...NONE.
NJ...NONE.
DE...NONE.
MD...NONE.
MARINE...GALE WARNING UNTIL 6 PM EDT THURSDAY FOR ANZ431-450>455.
     SMALL CRAFT ADVISORY UNTIL 6 PM EDT THURSDAY FOR ANZ430.

&&

$$
SYNOPSIS...GORSE
NEAR TERM...IOVINO
SHORT TERM...IOVINO
LONG TERM...GORSE/HEAVENER
AVIATION...IOVINO/HEAVENER
MARINE...IOVINO/HEAVENER







000
FXUS61 KPHI 221544
AFDPHI

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1144 AM EDT WED OCT 22 2014

.SYNOPSIS...
AN AREA OF LOW PRESSURE OFFSHORE WILL STRENGTHEN AS IT SLOWLY
TRACKS NORTHEASTWARD TODAY AND TONIGHT. THIS STORM SYSTEM SHOULD
BE OFF THE NEW ENGLAND COAST LATER THURSDAY INTO FRIDAY, THEN MOVE
INTO NOVA SCOTIA FRIDAY NIGHT. HIGH PRESSURE IS FORECAST TO BUILD
TOWARD OUR AREA FROM THE SOUTHWEST FRIDAY AND SATURDAY, THEN A
COLD FRONT IS EXPECTED TO MOVE THROUGH SATURDAY NIGHT. HIGH
PRESSURE BUILDS IN FOR LATER SUNDAY AND MONDAY BEFORE SHIFTING
OFFSHORE TUESDAY.

&&

.NEAR TERM /UNTIL 6 PM THIS EVENING/...
THE MID LEVEL LOW WAS LOCATED OVER THE WATERS OFF VIRGINIA AROUND
1130 AM AND THE SURFACE LOW WAS CENTERED ABOUT 200 MILES TO THE
EAST NORTHEAST. THE MID LEVEL LOW IS EXPECTED TO DRIFT EAST
NORTHEASTWARD TODAY AS THE SURFACE REFLECTION LIFTS SLOWLY TO THE
NORTH NORTHEAST.

THE PRECIPITATION STREAM THAT WAS FEEDING INTO CENTRAL NEW
JERSEY, SOUTHEASTERN PENNSYLVANIA AND THE UPPER CHESAPEAKE BAY
REGION EARLY THIS MORNING WAS IN THE PROCESS OF PIVOTING AROUND
THE LOW LATE THIS MORNING. IT HAD BECOME LESS FOCUSED THAN IT WAS
DURING THE NIGHT AND RAINFALL RATES OVER LAND CONTINUED TO
DECREASE.

AS THE LOW MOVES SLOWLY OUT TO SEA, THE ORIENTATION OF THE
PRECIPITATION FEED IS EXPECTED TO BECOME INCREASINGLY NORTHEAST TO
SOUTHWEST OVER OUR REGION AND IT SHOULD SETTLE OVER THE COASTAL
PLAIN DURING THE COURSE OF THE AFTERNOON. MEANWHILE, SPOTTY LIGHT
RAIN IS FORECAST TO CONTINUE IN EASTERN PENNSYLVANIA.

TEMPERATURES SHOULD REMAIN MOSTLY IN THE 50S TODAY DUE TO THE
CLOUD COVER AND RAIN ALONG WITH A BRISK NORTH TO NORTHEAST WIND.

&&

.SHORT TERM /6 PM THIS EVENING THROUGH 6 AM THURSDAY/...
THE HIGH SITUATED TO THE NORTH OF OUR AREA WILL MOVE TO THE EAST.
THIS WILL ALLOW FOR THE UPPER LOW AND SURFACE LOW TO MAKE A MOVE
TO THE NORTH.

SHOWERS ARE EXPECTED TO CONTINUE THROUGH TONIGHT. MAINLY LIGHT
PRECIPITATION IS EXPECTED WITH HEAVIER RAIN POSSIBLE CLOSER TO THE
UPPER LOW.

SOME COOLER AIR WILL MOVE IN IN THE NORTHWEST FLOW BUT WE WILL
STILL HAVE PLENTY OF CLOUD COVER. IT WILL FEEL COLDER AS THE WINDS
REMAIN UP THROUGH THE NIGHT.

&&

.LONG TERM /THURSDAY THROUGH TUESDAY/...
A POTENT CLOSED LOW ACROSS THE NORTHEAST AND MID ATLANTIC IS
FORECAST TO GRADUALLY SHIFT NORTHEASTWARD THURSDAY AND FRIDAY.
THIS WILL TAKE SURFACE LOW PRESSURE WITH IT AS IT TRACKS TOWARD
THE NOVA SCOTIA AREA FRIDAY NIGHT. AS ENERGY DRIVES INTO THE
PACIFIC NORTHWEST, A BUILDING RIDGE OCCURS ACROSS THE PLAINS. THIS
WILL PROBABLY FORCE ANOTHER UPPER-LEVEL TROUGH DOWN INTO THE
NORTHEAST OVER THE WEEKEND, HOWEVER AS IT CLOSES OFF IT LOOKS TO
BE TO OUR NORTHEAST. THE AFOREMENTIONED UPPER-LEVEL RIDGE THEN
ARRIVES IN THE EAST MONDAY, HOWEVER WITH THE PROGRESSIVE FLOW
PATTERN THE NEXT COLD FRONT IS FORECAST TO BE DRIVING EASTWARD
LATE MONDAY AND TUESDAY. WE USED A MODEL BLEND FOR THURSDAY
THROUGH SATURDAY, THEN BLENDED THE 00Z WPC GUIDANCE IN WITH
CONTINUITY. SOME TWEAKS WERE THEN MADE AFTER ADDITIONAL
COLLABORATION WITH OUR SURROUNDING OFFICES.

FOR THURSDAY AND FRIDAY...THE CENTER OF A POTENT CLOSED LOW IS
FORECAST TO BE JUST TO OUR EAST THURSDAY, BUT THEN SHIFT
NORTHEASTWARD THROUGH FRIDAY, THIS WILL TAKE A STRENGTHENING
SURFACE LOW WITH IT. WE WILL MAINTAIN MOISTURE WRAPPING AROUND THE
CLOSED LOW WITH THE POTENTIAL FOR A BAND OF SHOWERS TO MOVE ACROSS
THE NORTHERN AREAS THURSDAY. THE MAIN FORCING THOUGH LOOKS TO
REMAIN TO OUR NORTH. THEREFORE, SOME SHOWERS ARE EXPECTED WITH THE
HIGHEST /LIKELY/ POPS ACROSS THE NORTH IN THE MORNING WITH A
DECREASE SOUTHWARD AND DURING THE AFTERNOON. IT APPEARS DRYING
SHOULD WORK IN DURING THURSDAY NIGHT AND FRIDAY AS THE CLOSED LOW
AND SURFACE LOW SHIFT FARTHER TO OUR NORTHEAST. A TIGHT PRESSURE
GRADIENT COMBINED WITH A STRONGER WIND FIELD AND DEEPER MIXING
WILL RESULT IN BREEZY TO WINDY CONDITIONS BOTH DAYS, WITH SOME
DECREASE BOTH NIGHTS. A SHORT WAVE TROUGH LOOKS TO SLIDE ACROSS
THE AREA FRIDAY NIGHT, HOWEVER A LACK OF DEEP MOISTURE SHOULD ONLY
RESULT IN SOME CLOUDS FOR A TIME.

FOR SATURDAY AND SUNDAY...HIGH PRESSURE BUILDS TO OUR SOUTH
SATURDAY, HOWEVER A STRONG SHORT WAVE DIVING SOUTHEASTWARD FROM
THE GREAT LAKES WILL DIG ANOTHER UPPER-LEVEL TROUGH ACROSS THE
NORTHEAST LATER SATURDAY INTO SUNDAY. THIS WILL TOSS A COLD FRONT
ACROSS OUR AREA SATURDAY NIGHT, HOWEVER A LIMITED AMOUNT OF
MOISTURE SHOULD RESULT IN A GENERALLY DRY FRONTAL PASSAGE. THE
ASSOCIATED SURFACE LOW LOOKS TO INTENSIFY AS IS EXITS NEW ENGLAND,
WHICH MEANS A TIGHTENING PRESSURE GRADIENT DOWN INTO THE MID
ATLANTIC SUNDAY. AS A RESULT, A BREEZY DAY MAY OCCUR AS MIXING
DEEPENS. HIGH PRESSURE THEN STARTS TO BUILD IN SUNDAY NIGHT.

FOR MONDAY AND TUESDAY...AN UPPER-LEVEL RIDGE SLIDES TOWARD THE
EAST ALLOWING HIGH PRESSURE TO BUILD ACROSS OUR AREA MONDAY BEFORE
SHIFTING OFFSHORE TUESDAY. THIS IS EXPECTED TO RESULT IN WARMING
CONDITIONS, ESPECIALLY AS WAA DEVELOPS TUESDAY AHEAD OF THE NEXT
COLD FRONT. NO MAJOR CHANGES WERE MADE FOR THIS TIME FRAME, WITH
JUST SOME BLENDING IN OF THE NEW 00Z WPC GUIDANCE.

&&

.AVIATION /16Z WEDNESDAY THROUGH SUNDAY/...
THE FOLLOWING DISCUSSION IS FOR KPHL, KPNE, KTTN, KABE, KRDG,
KILG, KMIV, KACY AND SURROUNDING AREAS.

CEILINGS SHOULD FAVOR THE MVFR RANGE THROUGH THE AFTERNOON
(GENERALLY 1000 TO 2000 FEET) WITH PERIODS OF RAIN. CEILINGS MAY
BRIEFLY RISE INTO THE VFR CATEGORY OR FALL TO IFR, ESPECIALLY IN
ANY AREAS OF MODERATE RAINFALL. A GRADUAL LIFTING OF CEILINGS IS
POSSIBLE TONIGHT ALONG WITH THE CONTINUATION OF PERIOD OF LIGHT
RAIN.

THE WIND IS EXPECTED TO FAVOR THE NORTH TO NORTHEAST FOR TODAY
WITH SUSTAINED SPEEDS AROUND 8 TO 14 KNOTS AND GUSTS INTO THE 20S.
THE WIND DIRECTION IS FORECAST TO BACK TO THE NORTH AND NORTHWEST
FOR TONIGHT.

OUTLOOK...
THURSDAY...TIMES OF MVFR CONDITIONS WITH SOME SHOWERS, ENDING IN
THE EVENING AND BECOME VFR. NORTHWEST WINDS 15-20 KNOTS WITH GUSTS
UP TO 30 KNOTS, DIMINISHING SOME AT NIGHT.

FRIDAY...VFR. NORTHWESTERLY WINDS AROUND 15 KNOTS WITH GUSTS TO
25 KNOTS, DIMINISHING IN THE EVENING.

SATURDAY AND SUNDAY...VFR OVERALL.

&&

.MARINE...
THERE IS A SMALL CRAFT ADVISORY FOR THE UPPER PART OF DELAWARE
BAY AND A GALE WARNING ELSEWHERE IN OUR MARINE AREA.

TODAY...WINDS WILL INCREASE IN THE TIGHTENING PRESSURE GRADIENT
ACROSS THE AREA WATERS TODAY. WINDS WILL BE OUT OF THE NORTH
NORTHEAST EARLY BEFORE BECOMING MORE NORTH NORTHWEST. WINDS WILL
BE 20 TO 25 KNOTS WITH GUSTS OF 35 KNOTS ON THE OCEAN FRONT AND
LOWER DELAWARE BAY. THE UPPER DELAWARE BAY WILL SEE SIMILAR WINDS
WITH GUSTS IN THE LOWER 30 KNOT RANGE. SEAS WILL INCREASE TO 5 TO
7 FEET ON THE OCEAN FRONT.

TONIGHT...THE GALE WARNING CONTINUES ON THE OCEAN AND LOWER BAY
TONIGHT. WINDS REMAIN GUSTY OVERNIGHT AND THEN START TO DIMINISH A
BIT TOWARD THURSDAY MORNING AS THE GRADIENT STARTS TO LIGHTEN UP.
SEAS WILL DIMINISH OVERNIGHT BUT REMAIN ABOVE 5 FEET.

OUTLOOK...
THURSDAY...A GALE WARNING IS IN EFFECT FOR THE SOUTHERN OCEAN
ZONES AND LOWER DELAWARE BAY FOR THE MORNING AS GUSTY
NORTHWESTERLY WINDS HANG ON SOME. A SMALL CRAFT ADVISORY CONTINUES
FOR UPPER DELAWARE BAY, AND ONE WILL BE NEEDED ELSEWHERE FOLLOWING
THE GALE WARNING.

FRIDAY...NORTHWESTERLY WIND GUSTS OF 25 TO 30 KNOTS ARE
ANTICIPATED ESPECIALLY ON THE OCEAN ZONES AS A PRESSURE GRADIENT
AND MIXING CONTINUES. THIS SHOULD DECREASE AT NIGHT.

SATURDAY AND SUNDAY...THE FLOW SHOULD INCREASE SOME SATURDAY
NIGHT AND SUNDAY BEHIND A COLD FRONT. THIS COULD RESULT IN GUSTS
TO ABOUT 25 KNOTS FOR A TIME.

&&

.PHI WATCHES/WARNINGS/ADVISORIES...
PA...NONE.
NJ...NONE.
DE...NONE.
MD...NONE.
MARINE...GALE WARNING UNTIL 6 AM EDT THURSDAY FOR ANZ450>452.
     GALE WARNING UNTIL 11 AM EDT THURSDAY FOR ANZ431-453>455.
     SMALL CRAFT ADVISORY UNTIL 6 PM EDT THURSDAY FOR ANZ430.

&&

$$

SYNOPSIS...GORSE
NEAR TERM...IOVINO
SHORT TERM...MEOLA
LONG TERM...GORSE
AVIATION...GORSE/IOVINO
MARINE...GORSE/MEOLA







000
FXUS61 KPHI 221544
AFDPHI

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1144 AM EDT WED OCT 22 2014

.SYNOPSIS...
AN AREA OF LOW PRESSURE OFFSHORE WILL STRENGTHEN AS IT SLOWLY
TRACKS NORTHEASTWARD TODAY AND TONIGHT. THIS STORM SYSTEM SHOULD
BE OFF THE NEW ENGLAND COAST LATER THURSDAY INTO FRIDAY, THEN MOVE
INTO NOVA SCOTIA FRIDAY NIGHT. HIGH PRESSURE IS FORECAST TO BUILD
TOWARD OUR AREA FROM THE SOUTHWEST FRIDAY AND SATURDAY, THEN A
COLD FRONT IS EXPECTED TO MOVE THROUGH SATURDAY NIGHT. HIGH
PRESSURE BUILDS IN FOR LATER SUNDAY AND MONDAY BEFORE SHIFTING
OFFSHORE TUESDAY.

&&

.NEAR TERM /UNTIL 6 PM THIS EVENING/...
THE MID LEVEL LOW WAS LOCATED OVER THE WATERS OFF VIRGINIA AROUND
1130 AM AND THE SURFACE LOW WAS CENTERED ABOUT 200 MILES TO THE
EAST NORTHEAST. THE MID LEVEL LOW IS EXPECTED TO DRIFT EAST
NORTHEASTWARD TODAY AS THE SURFACE REFLECTION LIFTS SLOWLY TO THE
NORTH NORTHEAST.

THE PRECIPITATION STREAM THAT WAS FEEDING INTO CENTRAL NEW
JERSEY, SOUTHEASTERN PENNSYLVANIA AND THE UPPER CHESAPEAKE BAY
REGION EARLY THIS MORNING WAS IN THE PROCESS OF PIVOTING AROUND
THE LOW LATE THIS MORNING. IT HAD BECOME LESS FOCUSED THAN IT WAS
DURING THE NIGHT AND RAINFALL RATES OVER LAND CONTINUED TO
DECREASE.

AS THE LOW MOVES SLOWLY OUT TO SEA, THE ORIENTATION OF THE
PRECIPITATION FEED IS EXPECTED TO BECOME INCREASINGLY NORTHEAST TO
SOUTHWEST OVER OUR REGION AND IT SHOULD SETTLE OVER THE COASTAL
PLAIN DURING THE COURSE OF THE AFTERNOON. MEANWHILE, SPOTTY LIGHT
RAIN IS FORECAST TO CONTINUE IN EASTERN PENNSYLVANIA.

TEMPERATURES SHOULD REMAIN MOSTLY IN THE 50S TODAY DUE TO THE
CLOUD COVER AND RAIN ALONG WITH A BRISK NORTH TO NORTHEAST WIND.

&&

.SHORT TERM /6 PM THIS EVENING THROUGH 6 AM THURSDAY/...
THE HIGH SITUATED TO THE NORTH OF OUR AREA WILL MOVE TO THE EAST.
THIS WILL ALLOW FOR THE UPPER LOW AND SURFACE LOW TO MAKE A MOVE
TO THE NORTH.

SHOWERS ARE EXPECTED TO CONTINUE THROUGH TONIGHT. MAINLY LIGHT
PRECIPITATION IS EXPECTED WITH HEAVIER RAIN POSSIBLE CLOSER TO THE
UPPER LOW.

SOME COOLER AIR WILL MOVE IN IN THE NORTHWEST FLOW BUT WE WILL
STILL HAVE PLENTY OF CLOUD COVER. IT WILL FEEL COLDER AS THE WINDS
REMAIN UP THROUGH THE NIGHT.

&&

.LONG TERM /THURSDAY THROUGH TUESDAY/...
A POTENT CLOSED LOW ACROSS THE NORTHEAST AND MID ATLANTIC IS
FORECAST TO GRADUALLY SHIFT NORTHEASTWARD THURSDAY AND FRIDAY.
THIS WILL TAKE SURFACE LOW PRESSURE WITH IT AS IT TRACKS TOWARD
THE NOVA SCOTIA AREA FRIDAY NIGHT. AS ENERGY DRIVES INTO THE
PACIFIC NORTHWEST, A BUILDING RIDGE OCCURS ACROSS THE PLAINS. THIS
WILL PROBABLY FORCE ANOTHER UPPER-LEVEL TROUGH DOWN INTO THE
NORTHEAST OVER THE WEEKEND, HOWEVER AS IT CLOSES OFF IT LOOKS TO
BE TO OUR NORTHEAST. THE AFOREMENTIONED UPPER-LEVEL RIDGE THEN
ARRIVES IN THE EAST MONDAY, HOWEVER WITH THE PROGRESSIVE FLOW
PATTERN THE NEXT COLD FRONT IS FORECAST TO BE DRIVING EASTWARD
LATE MONDAY AND TUESDAY. WE USED A MODEL BLEND FOR THURSDAY
THROUGH SATURDAY, THEN BLENDED THE 00Z WPC GUIDANCE IN WITH
CONTINUITY. SOME TWEAKS WERE THEN MADE AFTER ADDITIONAL
COLLABORATION WITH OUR SURROUNDING OFFICES.

FOR THURSDAY AND FRIDAY...THE CENTER OF A POTENT CLOSED LOW IS
FORECAST TO BE JUST TO OUR EAST THURSDAY, BUT THEN SHIFT
NORTHEASTWARD THROUGH FRIDAY, THIS WILL TAKE A STRENGTHENING
SURFACE LOW WITH IT. WE WILL MAINTAIN MOISTURE WRAPPING AROUND THE
CLOSED LOW WITH THE POTENTIAL FOR A BAND OF SHOWERS TO MOVE ACROSS
THE NORTHERN AREAS THURSDAY. THE MAIN FORCING THOUGH LOOKS TO
REMAIN TO OUR NORTH. THEREFORE, SOME SHOWERS ARE EXPECTED WITH THE
HIGHEST /LIKELY/ POPS ACROSS THE NORTH IN THE MORNING WITH A
DECREASE SOUTHWARD AND DURING THE AFTERNOON. IT APPEARS DRYING
SHOULD WORK IN DURING THURSDAY NIGHT AND FRIDAY AS THE CLOSED LOW
AND SURFACE LOW SHIFT FARTHER TO OUR NORTHEAST. A TIGHT PRESSURE
GRADIENT COMBINED WITH A STRONGER WIND FIELD AND DEEPER MIXING
WILL RESULT IN BREEZY TO WINDY CONDITIONS BOTH DAYS, WITH SOME
DECREASE BOTH NIGHTS. A SHORT WAVE TROUGH LOOKS TO SLIDE ACROSS
THE AREA FRIDAY NIGHT, HOWEVER A LACK OF DEEP MOISTURE SHOULD ONLY
RESULT IN SOME CLOUDS FOR A TIME.

FOR SATURDAY AND SUNDAY...HIGH PRESSURE BUILDS TO OUR SOUTH
SATURDAY, HOWEVER A STRONG SHORT WAVE DIVING SOUTHEASTWARD FROM
THE GREAT LAKES WILL DIG ANOTHER UPPER-LEVEL TROUGH ACROSS THE
NORTHEAST LATER SATURDAY INTO SUNDAY. THIS WILL TOSS A COLD FRONT
ACROSS OUR AREA SATURDAY NIGHT, HOWEVER A LIMITED AMOUNT OF
MOISTURE SHOULD RESULT IN A GENERALLY DRY FRONTAL PASSAGE. THE
ASSOCIATED SURFACE LOW LOOKS TO INTENSIFY AS IS EXITS NEW ENGLAND,
WHICH MEANS A TIGHTENING PRESSURE GRADIENT DOWN INTO THE MID
ATLANTIC SUNDAY. AS A RESULT, A BREEZY DAY MAY OCCUR AS MIXING
DEEPENS. HIGH PRESSURE THEN STARTS TO BUILD IN SUNDAY NIGHT.

FOR MONDAY AND TUESDAY...AN UPPER-LEVEL RIDGE SLIDES TOWARD THE
EAST ALLOWING HIGH PRESSURE TO BUILD ACROSS OUR AREA MONDAY BEFORE
SHIFTING OFFSHORE TUESDAY. THIS IS EXPECTED TO RESULT IN WARMING
CONDITIONS, ESPECIALLY AS WAA DEVELOPS TUESDAY AHEAD OF THE NEXT
COLD FRONT. NO MAJOR CHANGES WERE MADE FOR THIS TIME FRAME, WITH
JUST SOME BLENDING IN OF THE NEW 00Z WPC GUIDANCE.

&&

.AVIATION /16Z WEDNESDAY THROUGH SUNDAY/...
THE FOLLOWING DISCUSSION IS FOR KPHL, KPNE, KTTN, KABE, KRDG,
KILG, KMIV, KACY AND SURROUNDING AREAS.

CEILINGS SHOULD FAVOR THE MVFR RANGE THROUGH THE AFTERNOON
(GENERALLY 1000 TO 2000 FEET) WITH PERIODS OF RAIN. CEILINGS MAY
BRIEFLY RISE INTO THE VFR CATEGORY OR FALL TO IFR, ESPECIALLY IN
ANY AREAS OF MODERATE RAINFALL. A GRADUAL LIFTING OF CEILINGS IS
POSSIBLE TONIGHT ALONG WITH THE CONTINUATION OF PERIOD OF LIGHT
RAIN.

THE WIND IS EXPECTED TO FAVOR THE NORTH TO NORTHEAST FOR TODAY
WITH SUSTAINED SPEEDS AROUND 8 TO 14 KNOTS AND GUSTS INTO THE 20S.
THE WIND DIRECTION IS FORECAST TO BACK TO THE NORTH AND NORTHWEST
FOR TONIGHT.

OUTLOOK...
THURSDAY...TIMES OF MVFR CONDITIONS WITH SOME SHOWERS, ENDING IN
THE EVENING AND BECOME VFR. NORTHWEST WINDS 15-20 KNOTS WITH GUSTS
UP TO 30 KNOTS, DIMINISHING SOME AT NIGHT.

FRIDAY...VFR. NORTHWESTERLY WINDS AROUND 15 KNOTS WITH GUSTS TO
25 KNOTS, DIMINISHING IN THE EVENING.

SATURDAY AND SUNDAY...VFR OVERALL.

&&

.MARINE...
THERE IS A SMALL CRAFT ADVISORY FOR THE UPPER PART OF DELAWARE
BAY AND A GALE WARNING ELSEWHERE IN OUR MARINE AREA.

TODAY...WINDS WILL INCREASE IN THE TIGHTENING PRESSURE GRADIENT
ACROSS THE AREA WATERS TODAY. WINDS WILL BE OUT OF THE NORTH
NORTHEAST EARLY BEFORE BECOMING MORE NORTH NORTHWEST. WINDS WILL
BE 20 TO 25 KNOTS WITH GUSTS OF 35 KNOTS ON THE OCEAN FRONT AND
LOWER DELAWARE BAY. THE UPPER DELAWARE BAY WILL SEE SIMILAR WINDS
WITH GUSTS IN THE LOWER 30 KNOT RANGE. SEAS WILL INCREASE TO 5 TO
7 FEET ON THE OCEAN FRONT.

TONIGHT...THE GALE WARNING CONTINUES ON THE OCEAN AND LOWER BAY
TONIGHT. WINDS REMAIN GUSTY OVERNIGHT AND THEN START TO DIMINISH A
BIT TOWARD THURSDAY MORNING AS THE GRADIENT STARTS TO LIGHTEN UP.
SEAS WILL DIMINISH OVERNIGHT BUT REMAIN ABOVE 5 FEET.

OUTLOOK...
THURSDAY...A GALE WARNING IS IN EFFECT FOR THE SOUTHERN OCEAN
ZONES AND LOWER DELAWARE BAY FOR THE MORNING AS GUSTY
NORTHWESTERLY WINDS HANG ON SOME. A SMALL CRAFT ADVISORY CONTINUES
FOR UPPER DELAWARE BAY, AND ONE WILL BE NEEDED ELSEWHERE FOLLOWING
THE GALE WARNING.

FRIDAY...NORTHWESTERLY WIND GUSTS OF 25 TO 30 KNOTS ARE
ANTICIPATED ESPECIALLY ON THE OCEAN ZONES AS A PRESSURE GRADIENT
AND MIXING CONTINUES. THIS SHOULD DECREASE AT NIGHT.

SATURDAY AND SUNDAY...THE FLOW SHOULD INCREASE SOME SATURDAY
NIGHT AND SUNDAY BEHIND A COLD FRONT. THIS COULD RESULT IN GUSTS
TO ABOUT 25 KNOTS FOR A TIME.

&&

.PHI WATCHES/WARNINGS/ADVISORIES...
PA...NONE.
NJ...NONE.
DE...NONE.
MD...NONE.
MARINE...GALE WARNING UNTIL 6 AM EDT THURSDAY FOR ANZ450>452.
     GALE WARNING UNTIL 11 AM EDT THURSDAY FOR ANZ431-453>455.
     SMALL CRAFT ADVISORY UNTIL 6 PM EDT THURSDAY FOR ANZ430.

&&

$$

SYNOPSIS...GORSE
NEAR TERM...IOVINO
SHORT TERM...MEOLA
LONG TERM...GORSE
AVIATION...GORSE/IOVINO
MARINE...GORSE/MEOLA







000
FXUS61 KPHI 221402
AFDPHI

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1002 AM EDT WED OCT 22 2014

.SYNOPSIS...
AN AREA OF LOW PRESSURE OFFSHORE WILL STRENGTHEN AS IT SLOWLY
TRACKS NORTHEASTWARD TODAY AND TONIGHT. THIS STORM SYSTEM SHOULD
BE OFF THE NEW ENGLAND COAST LATER THURSDAY INTO FRIDAY, THEN MOVE
INTO NOVA SCOTIA FRIDAY NIGHT. HIGH PRESSURE IS FORECAST TO BUILD
TOWARD OUR AREA FROM THE SOUTHWEST FRIDAY AND SATURDAY, THEN A
COLD FRONT IS EXPECTED TO MOVE THROUGH SATURDAY NIGHT. HIGH
PRESSURE BUILDS IN FOR LATER SUNDAY AND MONDAY BEFORE SHIFTING
OFFSHORE TUESDAY.

&&

.NEAR TERM /UNTIL 6 PM THIS EVENING/...
THE MID LEVEL LOW WAS LOCATED OVER THE WATERS OFF VIRGINIA AROUND
1000 AM AND THE SURFACE LOW WAS CENTERED ABOUT 175 MILES TO THE
EAST. THE MID LEVEL LOW IS EXPECTED TO DRIFT EAST NORTHEASTWARD
TODAY AS THE SURFACE REFLECTION LIFTS SLOWLY TO THE NORTH
NORTHEAST.

THE PRECIPITATION STREAM THAT WAS FEEDING INTO CENTRAL NEW
JERSEY, SOUTHEASTERN PENNSYLVANIA AND THE UPPER CHESAPEAKE BAY
REGION EARLY THIS MORNING WAS IN THE PROCESS OF SHIFTING AROUND
1000 AM. IT HAD BECOME LESS FOCUSED THAN IT WAS DURING THE NIGHT
AND RAINFALL RATES OVER LAND HAD DECREASED.

AS THE LOW MOVES SLOWLY OUT TO SEA, THE ORIENTATION OF THE
PRECIPITATION FEED IS EXPECTED TO BECOME INCREASINGLY NORTHEAST TO
SOUTHWEST OVER OUR REGION AND IT SHOULD SETTLE OVER THE COASTAL
PLAIN DURING THE COURSE OF THE AFTERNOON. MEANWHILE, SPOTTY LIGHT
RAIN IS FORECAST TO CONTINUE IN EASTERN PENNSYLVANIA.

TEMPERATURES SHOULD REMAIN MOSTLY IN THE 50S TODAY DUE TO THE
CLOUD COVER AND RAIN ALONG WITH A BRISK NORTH TO NORTHEAST WIND.

&&

.SHORT TERM /6 PM THIS EVENING THROUGH 6 AM THURSDAY/...
THE HIGH SITUATED TO THE NORTH OF OUR AREA WILL MOVE TO THE EAST.
THIS WILL ALLOW FOR THE UPPER LOW AND SURFACE LOW TO MAKE A MOVE
TO THE NORTH.

SHOWERS ARE EXPECTED TO CONTINUE THROUGH TONIGHT. MAINLY LIGHT
PRECIPITATION IS EXPECTED WITH HEAVIER RAIN POSSIBLE CLOSER TO THE
UPPER LOW.

SOME COOLER AIR WILL MOVE IN IN THE NORTHWEST FLOW BUT WE WILL
STILL HAVE PLENTY OF CLOUD COVER. IT WILL FEEL COLDER AS THE WINDS
REMAIN UP THROUGH THE NIGHT.

&&

.LONG TERM /THURSDAY THROUGH TUESDAY/...
A POTENT CLOSED LOW ACROSS THE NORTHEAST AND MID ATLANTIC IS
FORECAST TO GRADUALLY SHIFT NORTHEASTWARD THURSDAY AND FRIDAY.
THIS WILL TAKE SURFACE LOW PRESSURE WITH IT AS IT TRACKS TOWARD
THE NOVA SCOTIA AREA FRIDAY NIGHT. AS ENERGY DRIVES INTO THE
PACIFIC NORTHWEST, A BUILDING RIDGE OCCURS ACROSS THE PLAINS. THIS
WILL PROBABLY FORCE ANOTHER UPPER-LEVEL TROUGH DOWN INTO THE
NORTHEAST OVER THE WEEKEND, HOWEVER AS IT CLOSES OFF IT LOOKS TO
BE TO OUR NORTHEAST. THE AFOREMENTIONED UPPER-LEVEL RIDGE THEN
ARRIVES IN THE EAST MONDAY, HOWEVER WITH THE PROGRESSIVE FLOW
PATTERN THE NEXT COLD FRONT IS FORECAST TO BE DRIVING EASTWARD
LATE MONDAY AND TUESDAY. WE USED A MODEL BLEND FOR THURSDAY
THROUGH SATURDAY, THEN BLENDED THE 00Z WPC GUIDANCE IN WITH
CONTINUITY. SOME TWEAKS WERE THEN MADE AFTER ADDITIONAL
COLLABORATION WITH OUR SURROUNDING OFFICES.

FOR THURSDAY AND FRIDAY...THE CENTER OF A POTENT CLOSED LOW IS
FORECAST TO BE JUST TO OUR EAST THURSDAY, BUT THEN SHIFT
NORTHEASTWARD THROUGH FRIDAY, THIS WILL TAKE A STRENGTHENING
SURFACE LOW WITH IT. WE WILL MAINTAIN MOISTURE WRAPPING AROUND THE
CLOSED LOW WITH THE POTENTIAL FOR A BAND OF SHOWERS TO MOVE ACROSS
THE NORTHERN AREAS THURSDAY. THE MAIN FORCING THOUGH LOOKS TO
REMAIN TO OUR NORTH. THEREFORE, SOME SHOWERS ARE EXPECTED WITH THE
HIGHEST /LIKELY/ POPS ACROSS THE NORTH IN THE MORNING WITH A
DECREASE SOUTHWARD AND DURING THE AFTERNOON. IT APPEARS DRYING
SHOULD WORK IN DURING THURSDAY NIGHT AND FRIDAY AS THE CLOSED LOW
AND SURFACE LOW SHIFT FARTHER TO OUR NORTHEAST. A TIGHT PRESSURE
GRADIENT COMBINED WITH A STRONGER WIND FIELD AND DEEPER MIXING
WILL RESULT IN BREEZY TO WINDY CONDITIONS BOTH DAYS, WITH SOME
DECREASE BOTH NIGHTS. A SHORT WAVE TROUGH LOOKS TO SLIDE ACROSS
THE AREA FRIDAY NIGHT, HOWEVER A LACK OF DEEP MOISTURE SHOULD ONLY
RESULT IN SOME CLOUDS FOR A TIME.

FOR SATURDAY AND SUNDAY...HIGH PRESSURE BUILDS TO OUR SOUTH
SATURDAY, HOWEVER A STRONG SHORT WAVE DIVING SOUTHEASTWARD FROM
THE GREAT LAKES WILL DIG ANOTHER UPPER-LEVEL TROUGH ACROSS THE
NORTHEAST LATER SATURDAY INTO SUNDAY. THIS WILL TOSS A COLD FRONT
ACROSS OUR AREA SATURDAY NIGHT, HOWEVER A LIMITED AMOUNT OF
MOISTURE SHOULD RESULT IN A GENERALLY DRY FRONTAL PASSAGE. THE
ASSOCIATED SURFACE LOW LOOKS TO INTENSIFY AS IS EXITS NEW ENGLAND,
WHICH MEANS A TIGHTENING PRESSURE GRADIENT DOWN INTO THE MID
ATLANTIC SUNDAY. AS A RESULT, A BREEZY DAY MAY OCCUR AS MIXING
DEEPENS. HIGH PRESSURE THEN STARTS TO BUILD IN SUNDAY NIGHT.

FOR MONDAY AND TUESDAY...AN UPPER-LEVEL RIDGE SLIDES TOWARD THE
EAST ALLOWING HIGH PRESSURE TO BUILD ACROSS OUR AREA MONDAY BEFORE
SHIFTING OFFSHORE TUESDAY. THIS IS EXPECTED TO RESULT IN WARMING
CONDITIONS, ESPECIALLY AS WAA DEVELOPS TUESDAY AHEAD OF THE NEXT
COLD FRONT. NO MAJOR CHANGES WERE MADE FOR THIS TIME FRAME, WITH
JUST SOME BLENDING IN OF THE NEW 00Z WPC GUIDANCE.

&&

.AVIATION /14Z WEDNESDAY THROUGH SUNDAY/...
THE FOLLOWING DISCUSSION IS FOR KPHL, KPNE, KTTN, KABE, KRDG,
KILG, KMIV, KACY AND SURROUNDING AREAS.

CEILINGS SHOULD FAVOR THE MVFR RANGE THROUGH THE DAY WITH PERIODS
OF RAIN. CEILINGS MAY OCCASIONALLY RISE INTO THE VFR CATEGORY.
ALSO, THEY MAY BRIEFLY FALL TO IFR, ESPECIALLY IN ANY AREAS OF
MODERATE RAINFALL. THE SAME TREND IS FORECAST TO CONTINUE INTO
TONIGHT.

THE WIND IS EXPECTED TO FAVOR THE NORTH TO NORTHEAST FOR TODAY
WITH SUSTAINED SPEEDS AROUND 8 TO 14 KNOTS AND GUSTS INTO THE 20S.
THE WIND DIRECTION IS FORECAST TO BACK TO THE NORTH AND NORTHWEST
FOR TONIGHT.

OUTLOOK...
THURSDAY...TIMES OF MVFR CONDITIONS WITH SOME SHOWERS, ENDING IN
THE EVENING AND BECOME VFR. NORTHWEST WINDS 15-20 KNOTS WITH GUSTS
UP TO 30 KNOTS, DIMINISHING SOME AT NIGHT.

FRIDAY...VFR. NORTHWESTERLY WINDS AROUND 15 KNOTS WITH GUSTS TO
25 KNOTS, DIMINISHING IN THE EVENING.

SATURDAY AND SUNDAY...VFR OVERALL.

&&

.MARINE...
THERE IS A SMALL CRAFT ADVISORY FOR THE UPPER PART OF DELAWARE
BAY AND A GALE WARNING ELSEWHERE IN OUR MARINE AREA.

TODAY...WINDS WILL INCREASE IN THE TIGHTENING PRESSURE GRADIENT
ACROSS THE AREA WATERS TODAY. WINDS WILL BE OUT OF THE NORTH
NORTHEAST EARLY BEFORE BECOMING MORE NORTH NORTHWEST. WINDS WILL
BE 20 TO 25 KNOTS WITH GUSTS OF 35 KNOTS ON THE OCEAN FRONT AND
LOWER DELAWARE BAY. THE UPPER DELAWARE BAY WILL SEE SIMILAR WINDS
WITH GUSTS IN THE LOWER 30 KNOT RANGE. SEAS WILL INCREASE TO 5 TO
7 FEET ON THE OCEAN FRONT.

TONIGHT...THE GALE WARNING CONTINUES ON THE OCEAN AND LOWER BAY
TONIGHT. WINDS REMAIN GUSTY OVERNIGHT AND THEN START TO DIMINISH A
BIT TOWARD THURSDAY MORNING AS THE GRADIENT STARTS TO LIGHTEN UP.
SEAS WILL DIMINISH OVERNIGHT BUT REMAIN ABOVE 5 FEET.

OUTLOOK...
THURSDAY...A GALE WARNING IS IN EFFECT FOR THE SOUTHERN OCEAN
ZONES AND LOWER DELAWARE BAY FOR THE MORNING AS GUSTY
NORTHWESTERLY WINDS HANG ON SOME. A SMALL CRAFT ADVISORY CONTINUES
FOR UPPER DELAWARE BAY, AND ONE WILL BE NEEDED ELSEWHERE FOLLOWING
THE GALE WARNING.

FRIDAY...NORTHWESTERLY WIND GUSTS OF 25 TO 30 KNOTS ARE
ANTICIPATED ESPECIALLY ON THE OCEAN ZONES AS A PRESSURE GRADIENT
AND MIXING CONTINUES. THIS SHOULD DECREASE AT NIGHT.

SATURDAY AND SUNDAY...THE FLOW SHOULD INCREASE SOME SATURDAY
NIGHT AND SUNDAY BEHIND A COLD FRONT. THIS COULD RESULT IN GUSTS
TO ABOUT 25 KNOTS FOR A TIME.

&&

.PHI WATCHES/WARNINGS/ADVISORIES...
PA...NONE.
NJ...NONE.
DE...NONE.
MD...NONE.
MARINE...GALE WARNING FROM 2 PM THIS AFTERNOON TO 6 AM EDT THURSDAY FOR
     ANZ450>452.
     GALE WARNING FROM 2 PM THIS AFTERNOON TO 11 AM EDT THURSDAY
     FOR ANZ431-453>455.
     SMALL CRAFT ADVISORY UNTIL 6 PM EDT THURSDAY FOR ANZ430.

&&

$$

SYNOPSIS...GORSE
NEAR TERM...IOVINO
SHORT TERM...MEOLA
LONG TERM...GORSE
AVIATION...GORSE/IOVINO
MARINE...GORSE/MEOLA







000
FXUS61 KPHI 220827
AFDPHI

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
427 AM EDT WED OCT 22 2014

.SYNOPSIS...
AN AREA OF LOW PRESSURE OFFSHORE WILL STRENGTHEN AS IT SLOWLY TRACKS
NORTHEASTWARD TODAY AND TONIGHT. THIS STORM SYSTEM SHOULD BE OFF THE
NEW ENGLAND COAST LATER THURSDAY INTO FRIDAY, THEN MOVE INTO NOVA
SCOTIA FRIDAY NIGHT. HIGH PRESSURE IS FORECAST TO BUILD TOWARD OUR
AREA FROM THE SOUTHWEST FRIDAY AND SATURDAY, THEN A COLD FRONT IS
EXPECTED TO MOVE THROUGH SATURDAY NIGHT. HIGH PRESSURE BUILDS IN FOR
LATER SUNDAY AND MONDAY BEFORE SHIFTING OFFSHORE TUESDAY.

&&

.NEAR TERM /UNTIL 6 PM THIS EVENING/...
THE UPPER LOW MAKES A MOVE TO THE EAST THROUGH TODAY AND SHOULD MOVE
OFFSHORE THIS AFTERNOON. MEANWHILE, THE SURFACE LOW WILL DEEPEN
OFFSHORE AS IT STARTS TO MAKE ITS PUSH TO THE NORTH. THE SURFACE
LOWS NORTHWARD PUSH IS IMPEDED BY THE HIGH PRESSURE OVER
NORTHEASTERN CANADA.

THIS WILL CAUSE THE PRESSURE GRADIENT TO REMAIN PRETTY TIGHT ACROSS
OUR AREA AND IN RETURN, WE WILL HAVE A BLUSTERY KIND OF DAY. CLOUDY
SKIES AND GUSTY WINDS WILL CERTAINLY MAKE IT FEEL LIKE FALL OUT
THERE. TEMPERATURES WILL NOT RISE ALL THAT MUCH AND MOST AREAS WILL
BE LUCKY IF THEY CAN MAKE IT INTO THE LOWER 60S. WE WILL LIKELY SEE
A GOOD PORTION OF THE AREA REMAIN IN THE UPPER 50S WITH SOME LOWER
60S MORE POSSIBLE IN THE SOUTHERN AREAS.

IN ADDITION, THE DEEPENING SURFACE LOW WILL TAP INTO A BIT OF
MOISTURE AND WE WILL CONTINUE TO SEE SHOWERS OFF AND ON TODAY. THERE
IS ENOUGH INSTABILITY AROUND TO SPARK OFF SOME ISOLATED
THUNDERSTORMS THROUGH THIS MORNING. BEST CHANCES FOR THUNDER WILL
EXIST ACROSS THE SOUTHERN AREAS AND CLOSER TO THE COAST AS A VORT
MAX LIFTS NORTHWARD.

&&

.SHORT TERM /6 PM THIS EVENING THROUGH 6 AM THURSDAY/...
THE HIGH SITUATED TO THE NORTH OF OUR AREA WILL MOVE TO THE EAST.
THIS WILL ALLOW FOR THE UPPER LOW AND SURFACE LOW TO MAKE A MOVE TO
THE NORTH.

SHOWERS ARE EXPECTED TO CONTINUE THROUGH TONIGHT. MAINLY LIGHT
PRECIPITATION IS EXPECTED WITH HEAVIER RAIN POSSIBLE CLOSER TO THE
UPPER LOW.

SOME COOLER AIR WILL MOVE IN IN THE NORTHWEST FLOW BUT WE WILL STILL
HAVE PLENTY OF CLOUD COVER. IT WILL FEEL COLDER AS THE WINDS REMAIN
UP THROUGH THE NIGHT.

&&

.LONG TERM /THURSDAY THROUGH TUESDAY/...
A POTENT CLOSED LOW ACROSS THE NORTHEAST AND MID ATLANTIC IS
FORECAST TO GRADUALLY SHIFT NORTHEASTWARD THURSDAY AND FRIDAY. THIS
WILL TAKE SURFACE LOW PRESSURE WITH IT AS IT TRACKS TOWARD THE NOVA
SCOTIA AREA FRIDAY NIGHT. AS ENERGY DRIVES INTO THE PACIFIC
NORTHWEST, A BUILDING RIDGE OCCURS ACROSS THE PLAINS. THIS WILL
PROBABLY FORCE ANOTHER UPPER-LEVEL TROUGH DOWN INTO THE NORTHEAST
OVER THE WEEKEND, HOWEVER AS IT CLOSES OFF IT LOOKS TO BE TO OUR
NORTHEAST. THE AFOREMENTIONED UPPER-LEVEL RIDGE THEN ARRIVES IN THE
EAST MONDAY, HOWEVER WITH THE PROGRESSIVE FLOW PATTERN THE NEXT COLD
FRONT IS FORECAST TO BE DRIVING EASTWARD LATE MONDAY AND TUESDAY. WE
USED A MODEL BLEND FOR THURSDAY THROUGH SATURDAY, THEN BLENDED THE
00Z WPC GUIDANCE IN WITH CONTINUITY. SOME TWEAKS WERE THEN MADE
AFTER ADDITIONAL COLLABORATION WITH OUR SURROUNDING OFFICES.

FOR THURSDAY AND FRIDAY...THE CENTER OF A POTENT CLOSED LOW IS
FORECAST TO BE JUST TO OUR EAST THURSDAY, BUT THEN SHIFT
NORTHEASTWARD THROUGH FRIDAY, THIS WILL TAKE A STRENGTHENING SURFACE
LOW WITH IT. WE WILL MAINTAIN MOISTURE WRAPPING AROUND THE CLOSED
LOW WITH THE POTENTIAL FOR A BAND OF SHOWERS TO MOVE ACROSS THE
NORTHERN AREAS THURSDAY. THE MAIN FORCING THOUGH LOOKS TO REMAIN TO
OUR NORTH. THEREFORE, SOME SHOWERS ARE EXPECTED WITH THE HIGHEST
/LIKELY/ POPS ACROSS THE NORTH IN THE MORNING WITH A DECREASE
SOUTHWARD AND DURING THE AFTERNOON. IT APPEARS DRYING SHOULD WORK IN
DURING THURSDAY NIGHT AND FRIDAY AS THE CLOSED LOW AND SURFACE LOW
SHIFT FARTHER TO OUR NORTHEAST. A TIGHT PRESSURE GRADIENT COMBINED
WITH A STRONGER WIND FIELD AND DEEPER MIXING WILL RESULT IN BREEZY
TO WINDY CONDITIONS BOTH DAYS, WITH SOME DECREASE BOTH NIGHTS. A
SHORT WAVE TROUGH LOOKS TO SLIDE ACROSS THE AREA FRIDAY NIGHT,
HOWEVER A LACK OF DEEP MOISTURE SHOULD ONLY RESULT IN SOME CLOUDS
FOR A TIME.

FOR SATURDAY AND SUNDAY...HIGH PRESSURE BUILDS TO OUR SOUTH
SATURDAY, HOWEVER A STRONG SHORT WAVE DIVING SOUTHEASTWARD FROM THE
GREAT LAKES WILL DIG ANOTHER UPPER-LEVEL TROUGH ACROSS THE NORTHEAST
LATER SATURDAY INTO SUNDAY. THIS WILL TOSS A COLD FRONT ACROSS OUR
AREA SATURDAY NIGHT, HOWEVER A LIMITED AMOUNT OF MOISTURE SHOULD
RESULT IN A GENERALLY DRY FRONTAL PASSAGE. THE ASSOCIATED SURFACE
LOW LOOKS TO INTENSIFY AS IS EXITS NEW ENGLAND, WHICH MEANS A
TIGHTENING PRESSURE GRADIENT DOWN INTO THE MID ATLANTIC SUNDAY. AS A
RESULT, A BREEZY DAY MAY OCCUR AS MIXING DEEPENS. HIGH PRESSURE THEN
STARTS TO BUILD IN SUNDAY NIGHT.

FOR MONDAY AND TUESDAY...AN UPPER-LEVEL RIDGE SLIDES TOWARD THE EAST
ALLOWING HIGH PRESSURE TO BUILD ACROSS OUR AREA MONDAY BEFORE
SHIFTING OFFSHORE TUESDAY. THIS IS EXPECTED TO RESULT IN WARMING
CONDITIONS, ESPECIALLY AS WAA DEVELOPS TUESDAY AHEAD OF THE NEXT
COLD FRONT. NO MAJOR CHANGES WERE MADE FOR THIS TIME FRAME, WITH
JUST SOME BLENDING IN OF THE NEW 00Z WPC GUIDANCE.

&&

.AVIATION /09Z WEDNESDAY THROUGH SUNDAY/...
THE FOLLOWING DISCUSSION IS FOR KPHL, KPNE, KTTN, KABE,
KRDG, KILG, KMIV, KACY AND SURROUNDING AREAS.

MVFR CONDITIONS ARE STARTING TO MOVE INTO THE TERMINALS.
THUNDERSTORMS ARE LOCATED MAINLY ALONG THE COAST, AFFECTING KACY
EARLY THIS MORNING, AND WILL START TO PUSH INLAND OVER THE COMING
HOURS. HOW MUCH THEY HOLD TOGETHER AND HOW FAR INLAND THEY GET WILL
BE THE QUESTION. PRESENTLY, IT LOOKS LIKE THE STORMS WILL MAKE IT AS
FAR INLAND AS KMIV. SHOWERS WILL PUSH INLAND AS WELL AND LOOK TO
IMPACT KILG, KPHL, KPNE, AND KTTN THIS MORNING. RAIN MAY BE HEAVY AT
TIMES AND PERIODS OF IFR CONDITIONS MAY OCCUR. THUNDERSTORMS WILL
LIKELY AFFECT KMIV BETWEEN 8Z-10Z. SHOULD ANY HOLD TOGETHER AND
APPROACH THE I-95 CORRIDOR, IT WOULD BE CLOSER TO 10Z-12Z.

NORTH TO NORTHEAST WINDS TODAY WILL BECOME QUITE GUSTY AND A BIT
MORE NORTH TO NORTHWEST THROUGH THIS AFTERNOON AND EVENING. SPEEDS
AROUND 5-10 KNOTS THIS MORNING WILL INCREASE TO 10-15 KNOTS WITH
GUSTS AROUND 25 KNOTS BY THIS AFTERNOON.

OUTLOOK...
THURSDAY...TIMES OF MVFR CONDITIONS WITH SOME SHOWERS, ENDING IN THE
EVENING AND BECOME VFR. NORTHWEST WINDS 15-20 KNOTS WITH GUSTS UP TO
30 KNOTS, DIMINISHING SOME AT NIGHT.

FRIDAY...VFR. NORTHWESTERLY WINDS AROUND 15 KNOTS WITH GUSTS TO 25
KNOTS, DIMINISHING IN THE EVENING.

SATURDAY AND SUNDAY...VFR OVERALL.

&&

.MARINE...
THE SMALL CRAFT ADVISORY ON THE OCEAN HAS BEEN CONVERTED OVER TO A
GALE WARNING. THE SMALL CRAFT ADVISORY ON THE UPPER BAY REMAINS
UNCHANGED, AS DOES THE PREVIOUSLY ISSUED GALE WARNING.

TODAY...WINDS WILL INCREASE IN THE TIGHTENING PRESSURE GRADIENT
ACROSS THE AREA WATERS TODAY. WINDS WILL BE OUT OF THE NORTH
NORTHEAST EARLY BEFORE BECOMING MORE NORTH NORTHWEST. WINDS WILL BE
20 TO 25 KNOTS WITH GUSTS OF 35 KNOTS ON THE OCEAN FRONT AND LOWER
DELAWARE BAY. THE UPPER DELAWARE BAY WILL SEE SIMILAR WINDS WITH
GUSTS IN THE LOWER 30 KNOT RANGE. SEAS WILL INCREASE TO 5 TO 7 FEET
ON THE OCEAN FRONT.

TONIGHT...THE GALE WARNING CONTINUES ON THE OCEAN AND LOWER BAY
TONIGHT. WINDS REMAIN GUSTY OVERNIGHT AND THEN START TO DIMINISH A
BIT TOWARD THURSDAY MORNING AS THE GRADIENT STARTS TO LIGHTEN UP.
SEAS WILL DIMINISH OVERNIGHT BUT REMAIN ABOVE 5 FEET.

OUTLOOK...
THURSDAY...A GALE WARNING IS IN EFFECT FOR THE SOUTHERN OCEAN ZONES
AND LOWER DELAWARE BAY FOR THE MORNING AS GUSTY NORTHWESTERLY WINDS
HANG ON SOME. A SMALL CRAFT ADVISORY CONTINUES FOR UPPER DELAWARE
BAY, AND ONE WILL BE NEEDED ELSEWHERE FOLLOWING THE GALE WARNING.

FRIDAY...NORTHWESTERLY WIND GUSTS OF 25 TO 30 KNOTS ARE ANTICIPATED
ESPECIALLY ON THE OCEAN ZONES AS A PRESSURE GRADIENT AND MIXING
CONTINUES. THIS SHOULD DECREASE AT NIGHT.

SATURDAY AND SUNDAY...THE FLOW SHOULD INCREASE SOME SATURDAY NIGHT
AND SUNDAY BEHIND A COLD FRONT. THIS COULD RESULT IN GUSTS TO ABOUT
25 KNOTS FOR A TIME.

&&

.PHI WATCHES/WARNINGS/ADVISORIES...
PA...NONE.
NJ...NONE.
DE...NONE.
MD...NONE.
MARINE...GALE WARNING FROM 2 PM THIS AFTERNOON TO 6 AM EDT THURSDAY FOR
     ANZ450>452.
     GALE WARNING FROM 2 PM THIS AFTERNOON TO 11 AM EDT THURSDAY
     FOR ANZ431-453>455.
     SMALL CRAFT ADVISORY FROM NOON TODAY TO 6 PM EDT THURSDAY FOR
     ANZ430.

&&

$$
SYNOPSIS...GORSE
NEAR TERM...MEOLA
SHORT TERM...MEOLA
LONG TERM...GORSE
AVIATION...GORSE/MEOLA
MARINE...GORSE/MEOLA





000
FXUS61 KPHI 220614
AFDPHI

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
214 AM EDT WED OCT 22 2014

.SYNOPSIS...
BROAD LOW PRESSURE WILL DRIFT OFF THE COAST TONIGHT. THE LOW IS
FORECAST TO MOVE SLOWLY NORTH AND NORTHEASTWARD REACHING THE
WATERS OFF CAPE COD ON THURSDAY NIGHT AND ARRIVING IN NOVA SCOTIA
ON FRIDAY NIGHT. HIGH PRESSURE IS ANTICIPATED TO BUILD INTO OUR
REGION FROM THE SOUTHWEST FOR FRIDAY INTO SATURDAY. A COLD FRONT
APPROACHING FROM NORTHWEST IS EXPECTED ON SATURDAY NIGHT WITH
ANOTHER AREA OF HIGH PRESSURE FOLLOWING FOR SUNDAY AND FOR THE
EARLY PART OF THE NEW WEEK.

&&

.NEAR TERM /UNTIL 6 AM THIS MORNING/...
THE SURFACE LOW IS CURRENTLY TO THE SOUTH OF THE REGION WHILE THE
UPPER LOW IS LOCATED TO OUR SOUTHWEST.

SHOWERS AND ISOLATED THUNDERSTORMS CONTINUE TO DEVELOP ACROSS
PARTS OF OUR AREA EARLY THIS MORNING. THE FLOW AROUND THE UPPER
LOW CAN EASILY BE PICKED OUT ON A RADAR LOOP. AS THE UPPER LOW
DRIFTS TO THE EAST, THE SHOWERS WILL ROTATE THROUGH THE CYCLONIC
FLOW AND GRADUALLY PUSH TO THE SOUTH AND EAST.

&&

.SHORT TERM /6 AM THIS MORNING THROUGH 6 PM TODAY/...
GENERALLY SPEAKING THE POOR MANS 500MB ENSEMBLE SHOWS GOOD
AGREEMENT AMONG THE 12Z OPERATIONAL MODELS. ALL SHOW THE TROUGHING
TO OUR WEST CLOSING OFF AS MULTIPLE IMPULSES MOVE THROUGH ITS
BASE OVER THE NEXT COUPLE OF DAYS. AS IT CONTINUES TO CLOSE OFF A
BETTER DEFINED SURFACE LOW TAKES SHAPE JUST OFFSHORE OF THE
DELMARVA/SOUTHERN NEW JERSEY COASTLINE. THE STRONGEST OF THE MID-
LEVEL IMPULSES TONIGHT DIVES INTO THE BASE OF THE TROUGH AS IT AND
IT BEGINS TO CLOSE OFF BUT DEEPENS THE COASTAL LOW PRESSURE. AMPLE
ATLANTIC MOISTURE WILL BE IN PLACE COMBINED WITH GOOD CYCLONIC JET
DYNAMICS AND DIV-Q FIELD TO SEE CATEGORICAL POPS ACROSS A BROAD
PORTION OF OUR EASTERN HALF WITH MODERATE RAINFALL EXPECTED.

TEMPERATURES WILL ONLY BE ALLOWED INTO THE UPPER-50S TO MAYBE THE
LOW-60S IN THE SOUTHERN PLACES. THE PRESSURE GRADIENT TIGHTENS AND
WITH SOME MIXING OCCURRING IN THE AFTERNOON HOURS GUSTS COULD TOP
OUT AROUND 25 WITH A NORTHERLY FLOW...RAW INDEED.

&&

.LONG TERM /TONIGHT THROUGH TUESDAY/...
A MID LEVEL LOW IS FORECAST TO BE LOCATED OFF THE DELMARVA COAST
THIS EVENING. THE FEATURE WILL LIFT SLOWLY NORTH AND
NORTHEASTWARD PASSING OVER THE WATERS OFF CAPE COD ON FRIDAY
MORNING.

WE CONTINUE TO ANTICIPATE RAIN FOR TONIGHT. THE RAIN
SHOULD REMAIN FAIRLY LIGHT IN MUCH OF EASTERN PENNSYLVANIA AND
NORTHEASTERN DELAWARE. HOWEVER, MODERATE TO OCCASIONALLY HEAVY
RAIN IS POSSIBLE IN NEW JERSEY AND DELAWARE, CLOSER TO THE MID
LEVEL LOW.

A FAIR AMOUNT OF LINGERING WRAP-AROUND MOISTURE WILL REMAIN OVER
OUR REGION ON THURSDAY. WE ARE ANTICIPATING A CLOUDY AND DAMP DAY
WITH A NORTHWEST WIND AND OCCASIONAL LIGHT RAIN. WE HAVE GONE WITH
THE LOW END OF THE TEMPERATURE GUIDANCE. HIGH TEMPERATURES SHOULD
BE MAINLY IN THE 50S IN OUR FORECAST AREA.

GRADUAL DRYING IS EXPECTED FROM SOUTHWEST TO NORTHEAST DURING THE
COURSE OF THURSDAY NIGHT AND FRIDAY AS THE MID LEVEL LOW CONTINUES
TO MOVE AWAY FROM OUR REGION. TEMPERATURES SHOULD BEGIN TO EASE
BACK TOWARD NORMAL LEVELS FOR LATE OCTOBER.

A SHORT WAVE ROTATING AROUND THE MID LEVEL LOW IS FORECAST TO
PASS OVERHEAD ON FRIDAY NIGHT. ANOTHER MID LEVEL SHORT WAVE FROM
THE NORTHWEST IS EXPECTED FOR SATURDAY NIGHT ALONG WITH AN
ASSOCIATED SURFACE COLD FRONT. THE COLD FRONT SHOULD HAVE LIMITED
MOISTURE ASSOCIATED WITH IT, SO WE ARE NOT ANTICIPATING ANY
PRECIPITATION AT THAT TIME. TEMPERATURES ARE FORECAST TO BE NEAR
NORMAL OVER THE WEEKEND.

RIDGING AT THE SURFACE AND ALOFT ARE ANTICIPATED FOR MONDAY AND
TUESDAY WITH A MOSTLY CLEAR SKY AND SLIGHTLY ABOVE NORMAL
TEMPERATURES.

&&

.AVIATION /06Z WEDNESDAY THROUGH SUNDAY/...
THE FOLLOWING DISCUSSION IS FOR KPHL, KPNE, KTTN, KABE,
KRDG, KILG, KMIV, KACY AND SURROUNDING AREAS.

VFR CONDITIONS WILL DETERIORATE THROUGH THE MORNING TO MVFR AND IN
SOME AREAS, IFR, FOR A PERIOD OF TIME. SHOWERS WITH ISOLATED
THUNDERSTORMS HAVE DEVELOPED AND RAIN WILL GRADUALLY OVERSPREAD
THE REGION. RAIN MAY BE HEAVY AT TIMES AND A RUMBLE OF THUNDER CAN
NOT BE RULED OUT AT THE TERMINALS. CONFIDENCE IS LOW ON TIMING OF
THUNDER AT THE TERMINALS AND THEREFORE IS NOT IN THE LATEST TAFS.

NORTHEAST WINDS TODAY BECOMING GUSTY AND MORE NORTHERLY THROUGH
THIS AFTERNOON AND EVENING. SPEEDS AROUND 5-10 KNOTS WILL INCREASE
TO 10-15 KNOTS WITH GUSTS AROUND 25 KNOTS. WITH THE WINDS
INCREASING, CEILINGS SHOULD RISE A BIT AND REMAIN IN THE MVFR
RANGE THROUGH MUCH OF THE DAY.

OUTLOOK...
THURSDAY...CONDITIONS VARYING BETWEEN VFR AND MVFR IN PERIODS OF
RAIN.

THURSDAY NIGHT...MAINLY VFR WITH A CHANCE OF SHOWERS.

FRIDAY THROUGH SUNDAY...MAINLY VFR.

&&

.MARINE...
THROUGH THIS MORNING...SUB-SCA CONDITIONS EXPECTED. LIGHT
SOUTHWEST- WEST FLOW WITH SHOWERS OVERSPREADING FROM THE WEST AND
THEN SOUTHWEST.

TODAY...WE UPGRADED TO GALES ACROSS THE LOWER BAY AND
SOUTHERN TWO ZONES STARTING THIS AFTERNOON AS LOW PRESSURE JUST
OFFSHORE WRAPS UP. SMALL CRAFT ELSEWHERE THROUGH THE THURSDAY.
NORTHEAST WINDS INCREASE TO 20 TO 25 KNOTS WITH GUSTS INTO THE
MID-30S LIKELY SOUTHWARD AND LOW-30S NORTHWARD. SEAS INCREASE TO
AROUND 5 TO 6 FEET LATE.

OUTLOOK...
WEDNESDAY NIGHT AND THURSDAY...A GALE WARNING IS IN PLACE FOR THE
WATERS OFF DELAWARE AND FOR THE LOWER PART OF DELAWARE BAY. A
SMALL CRAFT ADVISORY IS IN EFFECT FOR OUR REMAINING WATERS. WE ARE
EXPECTING A GUSTY NORTHWEST WIND.

THURSDAY NIGHT THROUGH FRIDAY NIGHT...NORTHWESTERLY WIND GUSTS OF
25 TO 30 KNOTS ARE POSSIBLE.

SATURDAY THROUGH SUNDAY...NO MARINE HEADLINES ARE ANTICIPATED.

&&

.PHI WATCHES/WARNINGS/ADVISORIES...
PA...NONE.
NJ...NONE.
DE...NONE.
MD...NONE.
MARINE...SMALL CRAFT ADVISORY FROM 10 AM THIS MORNING TO 6 PM EDT
     THURSDAY FOR ANZ450>453.
     GALE WARNING FROM 2 PM THIS AFTERNOON TO 11 AM EDT THURSDAY
     FOR ANZ431-454-455.
     SMALL CRAFT ADVISORY FROM NOON TODAY TO 6 PM EDT THURSDAY FOR
     ANZ430.

&&

$$
SYNOPSIS...IOVINO
NEAR TERM...MEOLA
SHORT TERM...HEAVENER
LONG TERM...IOVINO
AVIATION...IOVINO/MEOLA
MARINE...IOVINO/HEAVENER







000
FXUS61 KPHI 220117
AFDPHI

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
917 PM EDT TUE OCT 21 2014

.SYNOPSIS...
BROAD LOW PRESSURE WILL DRIFT OFF THE COAST TONIGHT. THE LOW IS
FORECAST TO MOVE SLOWLY NORTH AND NORTHEASTWARD REACHING THE
WATERS OFF CAPE COD ON THURSDAY NIGHT AND ARRIVING IN NOVA SCOTIA
ON FRIDAY NIGHT. HIGH PRESSURE IS ANTICIPATED TO BUILD INTO OUR
REGION FROM THE SOUTHWEST FOR FRIDAY INTO SATURDAY. A COLD FRONT
APPROACHING FROM NORTHWEST IS EXPECTED ON SATURDAY NIGHT WITH
ANOTHER AREA OF HIGH PRESSURE FOLLOWING FOR SUNDAY AND FOR THE
EARLY PART OF THE NEW WEEK.

&&

.NEAR TERM /UNTIL 6 AM WEDNESDAY MORNING/...
THE MID- LEVEL TROUGHING TO OUR WEST DIVES FURTHER SOUTHWARD TO
OUR IMMEDIATE WEST LATE TONIGHT AS MORE AND MORE ENERGY IS
TRANSFERRED TO A COASTAL LOW PRESSURE JUST OFFSHORE OF DELMARVA.

HAVE ADJUSTED POPS LOWER ACRS THE BOARD FOR THE NEXT FEW HOURS
BASED ON LATEST RADAR. LEFT HIGHEST CHCS ACRS THE ERN SHORE OF MD.
STILL EXPECT A GRADUAL UPWARD TREND IN POPS, BUT UPPER LOWS ARE
NOTORIOUSLY TRICKY, SO FURTHER ADJUSTMENTS ARE ANTICIPATED.



&&

.SHORT TERM /6 AM WEDNESDAY MORNING THROUGH 6 PM WEDNESDAY/...
GENERALLY SPEAKING THE POOR MANS 500MB ENSEMBLE SHOWS GOOD
AGREEMENT AMONG THE 12Z OPERATIONAL MODELS. ALL SHOW THE TROUGHING
TO OUR WEST CLOSING OFF TONIGHT AS MULTIPLE IMPULSES MOVE THROUGH
ITS BASE OVER THE NEXT COUPLE OF DAYS. AS IT CONTINUES TO CLOSE
OFF A BETTER DEFINED SURFACE LOW TAKES SHAPE JUST OFFSHORE OF THE
DELMARVA/SOUTHERN NEW JERSEY COASTLINE. THE STRONGEST OF THE MID-
LEVEL IMPULSES TONIGHT DIVES INTO THE BASE OF THE TROUGH AS IT AND
IT BEGINS TO CLOSE OFF BUT DEEPENS THE COASTAL LOW PRESSURE. AMPLE
ATLANTIC MOISTURE WILL BE IN PLACE COMBINED WITH GOOD CYCLONIC JET
DYNAMICS AND DIV-Q FIELD TO SEE CATEGORICAL POPS ACROSS A BROAD
PORTION OF OUR EASTERN HALF WITH MODERATE RAINFALL EXPECTED.

TEMPERATURES WILL ONLY BE ALLOWED INTO THE UPPER-50S TO MAYBE THE
LOW-60S IN THE SOUTHERN PLACES. THE PRESSURE GRADIENT TIGHTENS AND
WITH SOME MIXING OCCURRING IN THE AFTERNOON HOURS GUSTS COULD TOP
OUT AROUND 25 WITH A NORTHERLY FLOW...RAW INDEED.

&&

.LONG TERM /WEDNESDAY NIGHT THROUGH TUESDAY/...
A MID LEVEL LOW IS FORECAST TO BE LOCATED OFF THE DELMARVA COAST
ON WEDNESDAY EVENING. THE FEATURE WILL LIFT SLOWLY NORTH AND
NORTHEASTWARD PASSING OVER THE WATERS OFF CAPE COD ON FRIDAY
MORNING.

WE CONTINUE TO ANTICIPATE RAIN FOR WEDNESDAY NIGHT. THE RAIN
SHOULD REMAIN FAIRLY LIGHT IN MUCH OF EASTERN PENNSYLVANIA AND
NORTHEASTERN DELAWARE. HOWEVER, MODERATE TO OCCASIONALLY HEAVY
RAIN IS POSSIBLE IN NEW JERSEY AND DELAWARE, CLOSER TO THE MID
LEVEL LOW.

A FAIR AMOUNT OF LINGERING WRAP-AROUND MOISTURE WILL REMAIN OVER
OUR REGION ON THURSDAY. WE ARE ANTICIPATING A CLOUDY AND DAMP DAY
WITH A NORTHWEST WIND AND OCCASIONAL LIGHT RAIN. WE HAVE GONE WITH
THE LOW END OF THE TEMPERATURE GUIDANCE. HIGH TEMPERATURES SHOULD
BE MAINLY IN THE 50S IN OUR FORECAST AREA.

GRADUAL DRYING IS EXPECTED FROM SOUTHWEST TO NORTHEAST DURING THE
COURSE OF THURSDAY NIGHT AND FRIDAY AS THE MID LEVEL LOW CONTINUES
TO MOVE AWAY FROM OUR REGION. TEMPERATURES SHOULD BEGIN TO EASE
BACK TOWARD NORMAL LEVELS FOR LATE OCTOBER.

A SHORT WAVE ROTATING AROUND THE MID LEVEL LOW IS FORECAST TO
PASS OVERHEAD ON FRIDAY NIGHT. ANOTHER MID LEVEL SHORT WAVE FROM
THE NORTHWEST IS EXPECTED FOR SATURDAY NIGHT ALONG WITH AN
ASSOCIATED SURFACE COLD FRONT. THE COLD FRONT SHOULD HAVE LIMITED
MOISTURE ASSOCIATED WITH IT, SO WE ARE NOT ANTICIPATING ANY
PRECIPITATION AT THAT TIME. TEMPERATURES ARE FORECAST TO BE NEAR
NORMAL OVER THE WEEKEND.

RIDGING AT THE SURFACE AND ALOFT ARE ANTICIPATED FOR MONDAY AND
TUESDAY WITH A MOSTLY CLEAR SKY AND SLIGHTLY ABOVE NORMAL
TEMPERATURES.

&&

.AVIATION /01Z WEDNESDAY THROUGH SUNDAY/...
THE FOLLOWING DISCUSSION IS FOR KPHL, KPNE, KTTN, KABE, KRDG,
KILG, KMIV, KACY AND SURROUNDING AREAS.

TONIGHT...VFR TRENDING TO MVFR/IFR. NWLY FLOW BECOMING NELY
OVERNIGHT WITH SHWRS MOVG IN. MVFR/IFR CIGS AND VSBYS ARE
ANTICIPATED LATE TONIGHT AND INTO ERLY WED AS LOW PRES MOVES NEARBY.
RAIN EARLY WEDNESDAY MORNING COULD BE HEAVY AT TIMES AND MAY
REDUCE VSBYS INTO THE IFR RANGE. WINDS VEER TOWARDS THE NORTHEAST
AND INCREASE TOWARDS 10 KNOTS. LOW TO MDT CONFIDENCE.

WEDNESDAY...MOSTLY MVFR. RAIN WILL PREVAIL A MAJORITY OF THE DAY,
ESPECIALLY FROM PHL EASTWARD. NORTHEAST WINDS AROUND 10 TO 15
KNOTS WITH GUSTS UP TO 25 KNOTS...SLIGHT BACKING TOWARDS THE NORTH
LATE IN THE PERIOD. MEDIUM CONFIDENCE.

OUTLOOK...
WEDNESDAY NIGHT AND THURSDAY...CONDITIONS VARYING BETWEEN VFR AND
MVFR IN PERIODS OF RAIN.

THURSDAY NIGHT...MAINLY VFR WITH A CHANCE OF SHOWERS.

FRIDAY THROUGH SUNDAY...MAINLY VFR.

&&

.MARINE...
TONIGHT...SUB-SCA CONDITIONS EXPECTED TONIGHT. LIGHT SOUTHWEST-
WEST FLOW WITH SHOWERS OVERSPREADING FROM THE WEST AND THEN
SOUTHWEST.

WEDNESDAY...WE UPGRADED TO GALES ACROSS THE LOWER BAY AND
SOUTHERN TWO ZONES STARTING WEDNESDAY AFTERNOON AS LOW PRESSURE
JUST OFFSHORE WRAPS UP. SMALL CRAFT ELSEWHERE THROUGH THE
THURSDAY. NORTHEAST WINDS INCREASE TO 20 TO 25 KNOTS WITH GUSTS
INTO THE MID-30S LIKELY SOUTHWARD AND LOW-30S NORTHWARD. SEAS
INCREASE TO AROUND 5 TO 6 FEET LATE.

OUTLOOK...
WEDNESDAY NIGHT AND THURSDAY...A GALE WARNING IS IN PLACE FOR THE
WATERS OFF DELAWARE AND FOR THE LOWER PART OF DELAWARE BAY. A
SMALL CRAFT ADVISORY IS IN EFFECT FOR OUR REMAINING WATERS. WE ARE
EXPECTING A GUSTY NORTHWEST WIND.

THURSDAY NIGHT THROUGH FRIDAY NIGHT...NORTHWESTERLY WIND GUSTS OF
25 TO 30 KNOTS ARE POSSIBLE.

SATURDAY THROUGH SUNDAY...NO MARINE HEADLINES ARE ANTICIPATED.

&&

.PHI WATCHES/WARNINGS/ADVISORIES...
PA...NONE.
NJ...NONE.
DE...NONE.
MD...NONE.
MARINE...SMALL CRAFT ADVISORY FROM 10 AM WEDNESDAY TO 6 PM EDT THURSDAY
     FOR ANZ450>453.
     GALE WARNING FROM 2 PM WEDNESDAY TO 11 AM EDT THURSDAY FOR
     ANZ431-454-455.
     SMALL CRAFT ADVISORY FROM NOON WEDNESDAY TO 6 PM EDT THURSDAY
     FOR ANZ430.

&&

$$
SYNOPSIS...IOVINO
NEAR TERM...HEAVENER/NIERENBERG
SHORT TERM...HEAVENER
LONG TERM...IOVINO
AVIATION...IOVINO/HEAVENER/NIERENBERG
MARINE...IOVINO/HEAVENER







000
FXUS61 KPHI 212219
AFDPHI

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
619 PM EDT TUE OCT 21 2014

.SYNOPSIS...
BROAD LOW PRESSURE WILL DRIFT OFF THE COAST TONIGHT. THE LOW IS
FORECAST TO MOVE SLOWLY NORTH AND NORTHEASTWARD REACHING THE
WATERS OFF CAPE COD ON THURSDAY NIGHT AND ARRIVING IN NOVA SCOTIA
ON FRIDAY NIGHT. HIGH PRESSURE IS ANTICIPATED TO BUILD INTO OUR
REGION FROM THE SOUTHWEST FOR FRIDAY INTO SATURDAY. A COLD FRONT
APPROACHING FROM NORTHWEST IS EXPECTED ON SATURDAY NIGHT WITH
ANOTHER AREA OF HIGH PRESSURE FOLLOWING FOR SUNDAY AND FOR THE
EARLY PART OF THE NEW WEEK.

&&

.NEAR TERM /UNTIL 6 AM WEDNESDAY MORNING/...
WHAT WAS ONCE A BETTER DEFINED MCV OUT IN WESTERN PENNSYLVANIA
LOOKS TO BE LOSING IT LUSTER BUT IT SHOULD NOT COMPLETELY WASH OUT
AS IT MOVES CLOSER TO OUR CWA. THE CURRENT AREA OF ACTIVITY IS
EXPECTED TO INCREASE THROUGH THE LATE EVENING HOURS AND BEGIN TO
WANE AS IT LOSES BETTER SUPPORT FROM THE MID-LEVEL TROUGH TO OUR
WEST. THE MID- LEVEL TROUGHING TO OUR WEST DIVES FURTHER SOUTHWARD
TO OUR IMMEDIATE WEST LATE TONIGHT AS MORE AND MORE ENERGY IS
TRANSFERRED TO A COASTAL LOW PRESSURE JUST OFFSHORE OF DELMARVA.

WE CATERED THE POPS WITH LIKELIES ACROSS OUR NORTHERN FRINGE AND
CHANCE ELSEWHERE, EARLY AND THEN BRING IN LIKELY ACROSS OUR
SOUTHERN ZONES LATER TONIGHT WITH THE MOVEMENT OF THE CLOSING MID-
LEVEL LOW AND OVERHEAD ENERGY TRANSFER TO THE COAST.

THE LATEST RADAR SHOWED SOME ORGANIZED SHOWERS/TSRA IN NRN NJ AND
SOME LESS ORGANIZED STUFF ALG THE WRN PERIPHERY OF OUR AREA.
MOVEMENT IS SLOW. HAVE TRIED TO ADJUST POPS TO ACCOUNT FOR ITS
LOCATION AND TRENDS, BUT THIS WAS DIFFICULT, NONETHELESS. ALSO,
HAD TO MAKE SOME ADJUSTMENTS TO CLOUD COVER. WHILE MOST OF THE WRN
SECTIONS OF THE AREA IS CLOUDY ERN SECTIONS WERE MAINLY CLEAR
ATTM.

GRIDDED TEMPS WERE A BIT TOO WARM IN THE REAL NEAR TERM AND NEEDED
TO DROP THEM A FEW DEGREES AS WELL.

&&

.SHORT TERM /6 AM WEDNESDAY MORNING THROUGH 6 PM WEDNESDAY/...
GENERALLY SPEAKING THE POOR MANS 500MB ENSEMBLE SHOWS GOOD
AGREEMENT AMONG THE 12Z OPERATIONAL MODELS. ALL SHOW THE TROUGHING
TO OUR WEST CLOSING OFF TONIGHT AS MULTIPLE IMPULSES MOVE THROUGH
ITS BASE OVER THE NEXT COUPLE OF DAYS. AS IT CONTINUES TO CLOSE
OFF A BETTER DEFINED SURFACE LOW TAKES SHAPE JUST OFFSHORE OF THE
DELMARVA/SOUTHERN NEW JERSEY COASTLINE. THE STRONGEST OF THE MID-
LEVEL IMPULSES TONIGHT DIVES INTO THE BASE OF THE TROUGH AS IT AND
IT BEGINS TO CLOSE OFF BUT DEEPENS THE COASTAL LOW PRESSURE. AMPLE
ATLANTIC MOISTURE WILL BE IN PLACE COMBINED WITH GOOD CYCLONIC JET
DYNAMICS AND DIV-Q FIELD TO SEE CATEGORICAL POPS ACROSS A BROAD
PORTION OF OUR EASTERN HALF WITH MODERATE RAINFALL EXPECTED.

TEMPERATURES WILL ONLY BE ALLOWED INTO THE UPPER-50S TO MAYBE THE
LOW-60S IN THE SOUTHERN PLACES. THE PRESSURE GRADIENT TIGHTENS AND
WITH SOME MIXING OCCURRING IN THE AFTERNOON HOURS GUSTS COULD TOP
OUT AROUND 25 WITH A NORTHERLY FLOW...RAW INDEED.

&&

.LONG TERM /WEDNESDAY NIGHT THROUGH TUESDAY/...
A MID LEVEL LOW IS FORECAST TO BE LOCATED OFF THE DELMARVA COAST
ON WEDNESDAY EVENING. THE FEATURE WILL LIFT SLOWLY NORTH AND
NORTHEASTWARD PASSING OVER THE WATERS OFF CAPE COD ON FRIDAY
MORNING.

WE CONTINUE TO ANTICIPATE RAIN FOR WEDNESDAY NIGHT. THE RAIN
SHOULD REMAIN FAIRLY LIGHT IN MUCH OF EASTERN PENNSYLVANIA AND
NORTHEASTERN DELAWARE. HOWEVER, MODERATE TO OCCASIONALLY HEAVY
RAIN IS POSSIBLE IN NEW JERSEY AND DELAWARE, CLOSER TO THE MID
LEVEL LOW.

A FAIR AMOUNT OF LINGERING WRAP-AROUND MOISTURE WILL REMAIN OVER
OUR REGION ON THURSDAY. WE ARE ANTICIPATING A CLOUDY AND DAMP DAY
WITH A NORTHWEST WIND AND OCCASIONAL LIGHT RAIN. WE HAVE GONE WITH
THE LOW END OF THE TEMPERATURE GUIDANCE. HIGH TEMPERATURES SHOULD
BE MAINLY IN THE 50S IN OUR FORECAST AREA.

GRADUAL DRYING IS EXPECTED FROM SOUTHWEST TO NORTHEAST DURING THE
COURSE OF THURSDAY NIGHT AND FRIDAY AS THE MID LEVEL LOW CONTINUES
TO MOVE AWAY FROM OUR REGION. TEMPERATURES SHOULD BEGIN TO EASE
BACK TOWARD NORMAL LEVELS FOR LATE OCTOBER.

A SHORT WAVE ROTATING AROUND THE MID LEVEL LOW IS FORECAST TO
PASS OVERHEAD ON FRIDAY NIGHT. ANOTHER MID LEVEL SHORT WAVE FROM
THE NORTHWEST IS EXPECTED FOR SATURDAY NIGHT ALONG WITH AN
ASSOCIATED SURFACE COLD FRONT. THE COLD FRONT SHOULD HAVE LIMITED
MOISTURE ASSOCIATED WITH IT, SO WE ARE NOT ANTICIPATING ANY
PRECIPITATION AT THAT TIME. TEMPERATURES ARE FORECAST TO BE NEAR
NORMAL OVER THE WEEKEND.

RIDGING AT THE SURFACE AND ALOFT ARE ANTICIPATED FOR MONDAY AND
TUESDAY WITH A MOSTLY CLEAR SKY AND SLIGHTLY ABOVE NORMAL
TEMPERATURES.

&&

.AVIATION /22Z TUESDAY THROUGH SUNDAY/...
THE FOLLOWING DISCUSSION IS FOR KPHL, KPNE, KTTN, KABE, KRDG,
KILG, KMIV, KACY AND SURROUNDING AREAS.

TONIGHT...VFR TO MVFR/IFR. LIGHT WESTERLY FLOW EXPECTED WITH
SHOWERS OVERSPREADING FROM WEST TO EAST BEFORE SHUTTING OFF LATE
THIS EVENING. ISOLATED THUNDER POSSIBLE THROUGH LATE THIS EVENING
BUT NOT CONFIDENT ON PLACEMENT SO LEFT OUT OF TAFS...BETTER CHANCE
FURTHER EAST. START TO SEE MVFR/IFR CIGS AND VSBYS AS LOW PRESSURE
MOVES NEARBY. RAIN EARLY WEDNESDAY MORNING COULD BE HEAVY AT TIMES
AND MAY REDUCE VSBYS INTO THE IFR RANGE. WINDS VEER TOWARDS THE
NORTHEAST AND INCREASE TOWARDS 10 KNOTS. MEDIUM CONFIDENCE.

WEDNESDAY...MOSTLY MVFR. RAIN WILL PREVAIL A MAJORITY OF THE DAY,
ESPECIALLY FROM PHL EASTWARD. NORTHEAST WINDS AROUND 10 TO 15
KNOTS WITH GUSTS UP TO 25 KNOTS...SLIGHT BACKING TOWARDS THE NORTH
LATE IN THE PERIOD. MEDIUM CONFIDENCE.

OUTLOOK...
WEDNESDAY NIGHT AND THURSDAY...CONDITIONS VARYING BETWEEN VFR AND
MVFR IN PERIODS OF RAIN.

THURSDAY NIGHT...MAINLY VFR WITH A CHANCE OF SHOWERS.

FRIDAY THROUGH SUNDAY...MAINLY VFR.

&&

.MARINE...
TONIGHT...SUB-SCA CONDITIONS EXPECTED TONIGHT. LIGHT SOUTHWEST-
WEST FLOW WITH SHOWERS OVERSPREADING FROM THE WEST AND THEN
SOUTHWEST.

WEDNESDAY...WE UPGRADED TO GALES ACROSS THE LOWER BAY AND
SOUTHERN TWO ZONES STARTING WEDNESDAY AFTERNOON AS LOW PRESSURE
JUST OFFSHORE WRAPS UP. SMALL CRAFT ELSEWHERE THROUGH THE
THURSDAY. NORTHEAST WINDS INCREASE TO 20 TO 25 KNOTS WITH GUSTS
INTO THE MID-30S LIKELY SOUTHWARD AND LOW-30S NORTHWARD. SEAS
INCREASE TO AROUND 5 TO 6 FEET LATE.

OUTLOOK...
WEDNESDAY NIGHT AND THURSDAY...A GALE WARNING IS IN PLACE FOR THE
WATERS OFF DELAWARE AND FOR THE LOWER PART OF DELAWARE BAY. A
SMALL CRAFT ADVISORY IS IN EFFECT FOR OUR REMAINING WATERS. WE ARE
EXPECTING A GUSTY NORTHWEST WIND.

THURSDAY NIGHT THROUGH FRIDAY NIGHT...NORTHWESTERLY WIND GUSTS OF
25 TO 30 KNOTS ARE POSSIBLE.

SATURDAY THROUGH SUNDAY...NO MARINE HEADLINES ARE ANTICIPATED.

&&

.PHI WATCHES/WARNINGS/ADVISORIES...
PA...NONE.
NJ...NONE.
DE...NONE.
MD...NONE.
MARINE...SMALL CRAFT ADVISORY FROM 10 AM WEDNESDAY TO 6 PM EDT THURSDAY
     FOR ANZ450>453.
     GALE WARNING FROM 2 PM WEDNESDAY TO 11 AM EDT THURSDAY FOR
     ANZ431-454-455.
     SMALL CRAFT ADVISORY FROM NOON WEDNESDAY TO 6 PM EDT THURSDAY
     FOR ANZ430.

&&

$$
SYNOPSIS...IOVINO
NEAR TERM...HEAVENER/NIERENBERG
SHORT TERM...HEAVENER
LONG TERM...IOVINO
AVIATION...IOVINO/HEAVENER
MARINE...IOVINO/HEAVENER








000
FXUS61 KPHI 212219
AFDPHI

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
619 PM EDT TUE OCT 21 2014

.SYNOPSIS...
BROAD LOW PRESSURE WILL DRIFT OFF THE COAST TONIGHT. THE LOW IS
FORECAST TO MOVE SLOWLY NORTH AND NORTHEASTWARD REACHING THE
WATERS OFF CAPE COD ON THURSDAY NIGHT AND ARRIVING IN NOVA SCOTIA
ON FRIDAY NIGHT. HIGH PRESSURE IS ANTICIPATED TO BUILD INTO OUR
REGION FROM THE SOUTHWEST FOR FRIDAY INTO SATURDAY. A COLD FRONT
APPROACHING FROM NORTHWEST IS EXPECTED ON SATURDAY NIGHT WITH
ANOTHER AREA OF HIGH PRESSURE FOLLOWING FOR SUNDAY AND FOR THE
EARLY PART OF THE NEW WEEK.

&&

.NEAR TERM /UNTIL 6 AM WEDNESDAY MORNING/...
WHAT WAS ONCE A BETTER DEFINED MCV OUT IN WESTERN PENNSYLVANIA
LOOKS TO BE LOSING IT LUSTER BUT IT SHOULD NOT COMPLETELY WASH OUT
AS IT MOVES CLOSER TO OUR CWA. THE CURRENT AREA OF ACTIVITY IS
EXPECTED TO INCREASE THROUGH THE LATE EVENING HOURS AND BEGIN TO
WANE AS IT LOSES BETTER SUPPORT FROM THE MID-LEVEL TROUGH TO OUR
WEST. THE MID- LEVEL TROUGHING TO OUR WEST DIVES FURTHER SOUTHWARD
TO OUR IMMEDIATE WEST LATE TONIGHT AS MORE AND MORE ENERGY IS
TRANSFERRED TO A COASTAL LOW PRESSURE JUST OFFSHORE OF DELMARVA.

WE CATERED THE POPS WITH LIKELIES ACROSS OUR NORTHERN FRINGE AND
CHANCE ELSEWHERE, EARLY AND THEN BRING IN LIKELY ACROSS OUR
SOUTHERN ZONES LATER TONIGHT WITH THE MOVEMENT OF THE CLOSING MID-
LEVEL LOW AND OVERHEAD ENERGY TRANSFER TO THE COAST.

THE LATEST RADAR SHOWED SOME ORGANIZED SHOWERS/TSRA IN NRN NJ AND
SOME LESS ORGANIZED STUFF ALG THE WRN PERIPHERY OF OUR AREA.
MOVEMENT IS SLOW. HAVE TRIED TO ADJUST POPS TO ACCOUNT FOR ITS
LOCATION AND TRENDS, BUT THIS WAS DIFFICULT, NONETHELESS. ALSO,
HAD TO MAKE SOME ADJUSTMENTS TO CLOUD COVER. WHILE MOST OF THE WRN
SECTIONS OF THE AREA IS CLOUDY ERN SECTIONS WERE MAINLY CLEAR
ATTM.

GRIDDED TEMPS WERE A BIT TOO WARM IN THE REAL NEAR TERM AND NEEDED
TO DROP THEM A FEW DEGREES AS WELL.

&&

.SHORT TERM /6 AM WEDNESDAY MORNING THROUGH 6 PM WEDNESDAY/...
GENERALLY SPEAKING THE POOR MANS 500MB ENSEMBLE SHOWS GOOD
AGREEMENT AMONG THE 12Z OPERATIONAL MODELS. ALL SHOW THE TROUGHING
TO OUR WEST CLOSING OFF TONIGHT AS MULTIPLE IMPULSES MOVE THROUGH
ITS BASE OVER THE NEXT COUPLE OF DAYS. AS IT CONTINUES TO CLOSE
OFF A BETTER DEFINED SURFACE LOW TAKES SHAPE JUST OFFSHORE OF THE
DELMARVA/SOUTHERN NEW JERSEY COASTLINE. THE STRONGEST OF THE MID-
LEVEL IMPULSES TONIGHT DIVES INTO THE BASE OF THE TROUGH AS IT AND
IT BEGINS TO CLOSE OFF BUT DEEPENS THE COASTAL LOW PRESSURE. AMPLE
ATLANTIC MOISTURE WILL BE IN PLACE COMBINED WITH GOOD CYCLONIC JET
DYNAMICS AND DIV-Q FIELD TO SEE CATEGORICAL POPS ACROSS A BROAD
PORTION OF OUR EASTERN HALF WITH MODERATE RAINFALL EXPECTED.

TEMPERATURES WILL ONLY BE ALLOWED INTO THE UPPER-50S TO MAYBE THE
LOW-60S IN THE SOUTHERN PLACES. THE PRESSURE GRADIENT TIGHTENS AND
WITH SOME MIXING OCCURRING IN THE AFTERNOON HOURS GUSTS COULD TOP
OUT AROUND 25 WITH A NORTHERLY FLOW...RAW INDEED.

&&

.LONG TERM /WEDNESDAY NIGHT THROUGH TUESDAY/...
A MID LEVEL LOW IS FORECAST TO BE LOCATED OFF THE DELMARVA COAST
ON WEDNESDAY EVENING. THE FEATURE WILL LIFT SLOWLY NORTH AND
NORTHEASTWARD PASSING OVER THE WATERS OFF CAPE COD ON FRIDAY
MORNING.

WE CONTINUE TO ANTICIPATE RAIN FOR WEDNESDAY NIGHT. THE RAIN
SHOULD REMAIN FAIRLY LIGHT IN MUCH OF EASTERN PENNSYLVANIA AND
NORTHEASTERN DELAWARE. HOWEVER, MODERATE TO OCCASIONALLY HEAVY
RAIN IS POSSIBLE IN NEW JERSEY AND DELAWARE, CLOSER TO THE MID
LEVEL LOW.

A FAIR AMOUNT OF LINGERING WRAP-AROUND MOISTURE WILL REMAIN OVER
OUR REGION ON THURSDAY. WE ARE ANTICIPATING A CLOUDY AND DAMP DAY
WITH A NORTHWEST WIND AND OCCASIONAL LIGHT RAIN. WE HAVE GONE WITH
THE LOW END OF THE TEMPERATURE GUIDANCE. HIGH TEMPERATURES SHOULD
BE MAINLY IN THE 50S IN OUR FORECAST AREA.

GRADUAL DRYING IS EXPECTED FROM SOUTHWEST TO NORTHEAST DURING THE
COURSE OF THURSDAY NIGHT AND FRIDAY AS THE MID LEVEL LOW CONTINUES
TO MOVE AWAY FROM OUR REGION. TEMPERATURES SHOULD BEGIN TO EASE
BACK TOWARD NORMAL LEVELS FOR LATE OCTOBER.

A SHORT WAVE ROTATING AROUND THE MID LEVEL LOW IS FORECAST TO
PASS OVERHEAD ON FRIDAY NIGHT. ANOTHER MID LEVEL SHORT WAVE FROM
THE NORTHWEST IS EXPECTED FOR SATURDAY NIGHT ALONG WITH AN
ASSOCIATED SURFACE COLD FRONT. THE COLD FRONT SHOULD HAVE LIMITED
MOISTURE ASSOCIATED WITH IT, SO WE ARE NOT ANTICIPATING ANY
PRECIPITATION AT THAT TIME. TEMPERATURES ARE FORECAST TO BE NEAR
NORMAL OVER THE WEEKEND.

RIDGING AT THE SURFACE AND ALOFT ARE ANTICIPATED FOR MONDAY AND
TUESDAY WITH A MOSTLY CLEAR SKY AND SLIGHTLY ABOVE NORMAL
TEMPERATURES.

&&

.AVIATION /22Z TUESDAY THROUGH SUNDAY/...
THE FOLLOWING DISCUSSION IS FOR KPHL, KPNE, KTTN, KABE, KRDG,
KILG, KMIV, KACY AND SURROUNDING AREAS.

TONIGHT...VFR TO MVFR/IFR. LIGHT WESTERLY FLOW EXPECTED WITH
SHOWERS OVERSPREADING FROM WEST TO EAST BEFORE SHUTTING OFF LATE
THIS EVENING. ISOLATED THUNDER POSSIBLE THROUGH LATE THIS EVENING
BUT NOT CONFIDENT ON PLACEMENT SO LEFT OUT OF TAFS...BETTER CHANCE
FURTHER EAST. START TO SEE MVFR/IFR CIGS AND VSBYS AS LOW PRESSURE
MOVES NEARBY. RAIN EARLY WEDNESDAY MORNING COULD BE HEAVY AT TIMES
AND MAY REDUCE VSBYS INTO THE IFR RANGE. WINDS VEER TOWARDS THE
NORTHEAST AND INCREASE TOWARDS 10 KNOTS. MEDIUM CONFIDENCE.

WEDNESDAY...MOSTLY MVFR. RAIN WILL PREVAIL A MAJORITY OF THE DAY,
ESPECIALLY FROM PHL EASTWARD. NORTHEAST WINDS AROUND 10 TO 15
KNOTS WITH GUSTS UP TO 25 KNOTS...SLIGHT BACKING TOWARDS THE NORTH
LATE IN THE PERIOD. MEDIUM CONFIDENCE.

OUTLOOK...
WEDNESDAY NIGHT AND THURSDAY...CONDITIONS VARYING BETWEEN VFR AND
MVFR IN PERIODS OF RAIN.

THURSDAY NIGHT...MAINLY VFR WITH A CHANCE OF SHOWERS.

FRIDAY THROUGH SUNDAY...MAINLY VFR.

&&

.MARINE...
TONIGHT...SUB-SCA CONDITIONS EXPECTED TONIGHT. LIGHT SOUTHWEST-
WEST FLOW WITH SHOWERS OVERSPREADING FROM THE WEST AND THEN
SOUTHWEST.

WEDNESDAY...WE UPGRADED TO GALES ACROSS THE LOWER BAY AND
SOUTHERN TWO ZONES STARTING WEDNESDAY AFTERNOON AS LOW PRESSURE
JUST OFFSHORE WRAPS UP. SMALL CRAFT ELSEWHERE THROUGH THE
THURSDAY. NORTHEAST WINDS INCREASE TO 20 TO 25 KNOTS WITH GUSTS
INTO THE MID-30S LIKELY SOUTHWARD AND LOW-30S NORTHWARD. SEAS
INCREASE TO AROUND 5 TO 6 FEET LATE.

OUTLOOK...
WEDNESDAY NIGHT AND THURSDAY...A GALE WARNING IS IN PLACE FOR THE
WATERS OFF DELAWARE AND FOR THE LOWER PART OF DELAWARE BAY. A
SMALL CRAFT ADVISORY IS IN EFFECT FOR OUR REMAINING WATERS. WE ARE
EXPECTING A GUSTY NORTHWEST WIND.

THURSDAY NIGHT THROUGH FRIDAY NIGHT...NORTHWESTERLY WIND GUSTS OF
25 TO 30 KNOTS ARE POSSIBLE.

SATURDAY THROUGH SUNDAY...NO MARINE HEADLINES ARE ANTICIPATED.

&&

.PHI WATCHES/WARNINGS/ADVISORIES...
PA...NONE.
NJ...NONE.
DE...NONE.
MD...NONE.
MARINE...SMALL CRAFT ADVISORY FROM 10 AM WEDNESDAY TO 6 PM EDT THURSDAY
     FOR ANZ450>453.
     GALE WARNING FROM 2 PM WEDNESDAY TO 11 AM EDT THURSDAY FOR
     ANZ431-454-455.
     SMALL CRAFT ADVISORY FROM NOON WEDNESDAY TO 6 PM EDT THURSDAY
     FOR ANZ430.

&&

$$
SYNOPSIS...IOVINO
NEAR TERM...HEAVENER/NIERENBERG
SHORT TERM...HEAVENER
LONG TERM...IOVINO
AVIATION...IOVINO/HEAVENER
MARINE...IOVINO/HEAVENER








000
FXUS61 KPHI 212002
AFDPHI

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
402 PM EDT TUE OCT 21 2014

.SYNOPSIS...
BROAD LOW PRESSURE LOCATED OVER THE CHESAPEAKE BAY REGION THIS
AFTERNOON WILL DRIFT OFF THE COAST TONIGHT. THE LOW IS FORECAST TO
MOVE SLOWLY NORTH AND NORTHEASTWARD REACHING THE WATERS OFF CAPE
COD ON THURSDAY NIGHT AND ARRIVING IN NOVA SCOTIA ON FRIDAY NIGHT.
HIGH PRESSURE IS ANTICIPATED TO BUILD INTO OUR REGION FROM THE
SOUTHWEST FOR FRIDAY INTO SATURDAY. A COLD FRONT APPROACHING FROM
NORTHWEST IS EXPECTED ON SATURDAY NIGHT WITH ANOTHER AREA OF HIGH
PRESSURE FOLLOWING FOR SUNDAY AND FOR THE EARLY PART OF THE NEW
WEEK.

&&

.NEAR TERM /UNTIL 6 AM WEDNESDAY MORNING/...
REGIONAL RADAR IS STARTING TO SHOW MORE SCATTERED SHOWERS MOVING
INTO OUR WESTERN ZONES AT THIS TIME. WHAT WAS ONCE A BETTER
DEFINED MCV OUT IN WESTERN PENNSYLVANIA LOOKS TO BE LOSING IT
LUSTER BUT IT SHOULD NOT COMPLETELY WASH OUT AS IT MOVES CLOSER TO
OUR CWA. THE CURRENT AREA OF ACTIVITY IS EXPECTED TO INCREASE
THROUGH THE LATE EVENING HOURS AND BEGIN TO WANE AS IT LOSES
BETTER SUPPORT FROM THE MID-LEVEL TROUGH TO OUR WEST. THE MID-
LEVEL TROUGHING TO OUR WEST DIVES FURTHER SOUTHWARD TO OUR
IMMEDIATE WEST LATE TONIGHT AS MORE AND MORE ENERGY IS TRANSFERRED
TO A COASTAL LOW PRESSURE JUST OFFSHORE OF DELMARVA.

WE CATERED THE POPS WITH LIKELIES ACROSS OUR NORTHERN FRINGE AND
CHANCE ELSEWHERE, EARLY AND THEN BRING IN LIKELY ACROSS OUR
SOUTHERN ZONES LATER TONIGHT WITH THE MOVEMENT OF THE CLOSING MID-
LEVEL LOW AND OVERHEAD ENERGY TRANSFER TO THE COAST.

&&

.SHORT TERM /6 AM WEDNESDAY MORNING THROUGH 6 PM WEDNESDAY/...
GENERALLY SPEAKING THE POOR MANS 500MB ENSEMBLE SHOWS GOOD
AGREEMENT AMONG THE 12Z OPERATIONAL MODELS. ALL SHOW THE TROUGHING
TO OUR WEST CLOSING OFF TONIGHT AS MULTIPLE IMPULSES MOVE THROUGH
ITS BASE OVER THE NEXT COUPLE OF DAYS. AS IT CONTINUES TO CLOSE
OFF A BETTER DEFINED SURFACE LOW TAKES SHAPE JUST OFFSHORE OF THE
DELMARVA/SOUTHERN NEW JERSEY COASTLINE. THE STRONGEST OF THE MID-
LEVEL IMPULSES TONIGHT DIVES INTO THE BASE OF THE TROUGH AS IT AND
IT BEGINS TO CLOSE OFF BUT DEEPENS THE COASTAL LOW PRESSURE. AMPLE
ATLANTIC MOISTURE WILL BE IN PLACE COMBINED WITH GOOD CYCLONIC JET
DYNAMICS AND DIV-Q FIELD TO SEE CATEGORICAL POPS ACROSS A BROAD
PORTION OF OUR EASTERN HALF WITH MODERATE RAINFALL EXPECTED.

TEMPERATURES WILL ONLY BE ALLOWED INTO THE UPPER-50S TO MAYBE THE
LOW-60S IN THE SOUTHERN PLACES. THE PRESSURE GRADIENT TIGHTENS AND
WITH SOME MIXING OCCURRING IN THE AFTERNOON HOURS GUSTS COULD TOP
OUT AROUND 25 WITH A NORTHERLY FLOW...RAW INDEED.

&&

.LONG TERM /WEDNESDAY NIGHT THROUGH TUESDAY/...
A MID LEVEL LOW IS FORECAST TO BE LOCATED OFF THE DELMARVA COAST
ON WEDNESDAY EVENING. THE FEATURE WILL LIFT SLOWLY NORTH AND
NORTHEASTWARD PASSING OVER THE WATERS OFF CAPE COD ON FRIDAY
MORNING.

WE CONTINUE TO ANTICIPATE RAIN FOR WEDNESDAY NIGHT. THE RAIN
SHOULD REMAIN FAIRLY LIGHT IN MUCH OF EASTERN PENNSYLVANIA AND
NORTHEASTERN DELAWARE. HOWEVER, MODERATE TO OCCASIONALLY HEAVY
RAIN IS POSSIBLE IN NEW JERSEY AND DELAWARE, CLOSER TO THE MID
LEVEL LOW.

A FAIR AMOUNT OF LINGERING WRAP-AROUND MOISTURE WILL REMAIN OVER
OUR REGION ON THURSDAY. WE ARE ANTICIPATING A CLOUDY AND DAMP DAY
WITH A NORTHWEST WIND AND OCCASIONAL LIGHT RAIN. WE HAVE GONE WITH
THE LOW END OF THE TEMPERATURE GUIDANCE. HIGH TEMPERATURES SHOULD
BE MAINLY IN THE 50S IN OUR FORECAST AREA.

GRADUAL DRYING IS EXPECTED FROM SOUTHWEST TO NORTHEAST DURING THE
COURSE OF THURSDAY NIGHT AND FRIDAY AS THE MID LEVEL LOW CONTINUES
TO MOVE AWAY FROM OUR REGION. TEMPERATURES SHOULD BEGIN TO EASE
BACK TOWARD NORMAL LEVELS FOR LATE OCTOBER.

A SHORT WAVE ROTATING AROUND THE MID LEVEL LOW IS FORECAST TO
PASS OVERHEAD ON FRIDAY NIGHT. ANOTHER MID LEVEL SHORT WAVE FROM
THE NORTHWEST IS EXPECTED FOR SATURDAY NIGHT ALONG WITH AN
ASSOCIATED SURFACE COLD FRONT. THE COLD FRONT SHOULD HAVE LIMITED
MOISTURE ASSOCIATED WITH IT, SO WE ARE NOT ANTICIPATING ANY
PRECIPITATION AT THAT TIME. TEMPERATURES ARE FORECAST TO BE NEAR
NORMAL OVER THE WEEKEND.

RIDGING AT THE SURFACE AND ALOFT ARE ANTICIPATED FOR MONDAY AND
TUESDAY WITH A MOSTLY CLEAR SKY AND SLIGHTLY ABOVE NORMAL
TEMPERATURES.

&&

.AVIATION /20Z TUESDAY THROUGH SUNDAY/...
THE FOLLOWING DISCUSSION IS FOR KPHL, KPNE, KTTN, KABE, KRDG,
KILG, KMIV, KACY AND SURROUNDING AREAS.

THIS AFTERNOON - TONIGHT...VFR TO MVFR/IFR. LIGHT WESTERLY FLOW
EXPECTED WITH SHOWERS OVERSPREADING FROM WEST TO EAST BEFORE
SHUTTING OFF LATE THIS EVENING. ISOLATED THUNDER POSSIBLE THROUGH
LATE THIS EVENING BUT NOT CONFIDENT ON PLACEMENT SO LEFT OUT OF
TAFS...BETTER CHANCE FURTHER EAST. START TO SEE MVFR/IFR CIGS AND
VSBYS AS LOW PRESSURE MOVES NEARBY. RAIN EARLY WEDNESDAY MORNING
COULD BE HEAVY AT TIMES AND MAY REDUCE VSBYS INTO THE IFR RANGE.
WINDS VEER TOWARDS THE NORTHEAST AND INCREASE TOWARDS 10 KNOTS.
MEDIUM CONFIDENCE.

WEDNESDAY...MOSTLY MVFR. RAIN WILL PREVAIL A MAJORITY OF THE DAY,
ESPECIALLY FROM PHL EASTWARD. NORTHEAST WINDS AROUND 10 TO 15
KNOTS WITH GUSTS UP TO 25 KNOTS...SLIGHT BACKING TOWARDS THE NORTH
LATE IN THE PERIOD. MEDIUM CONFIDENCE.

OUTLOOK...
WEDNESDAY NIGHT AND THURSDAY...CONDITIONS VARYING BETWEEN VFR AND
MVFR IN PERIODS OF RAIN.

THURSDAY NIGHT...MAINLY VFR WITH A CHANCE OF SHOWERS.

FRIDAY THROUGH SUNDAY...MAINLY VFR.

&&

.MARINE...
TONIGHT...SUB-SCA CONDITIONS EXPECTED TONIGHT. LIGHT SOUTHWEST-
WEST FLOW WITH SHOWERS OVERSPREADING FROM THE WEST AND THEN
SOUTHWEST.

WEDNESDAY...WE UPGRADED TO GALES ACROSS THE LOWER BAY AND
SOUTHERN TWO ZONES STARTING WEDNESDAY AFTERNOON AS LOW PRESSURE
JUST OFFSHORE WRAPS UP. SMALL CRAFT ELSEWHERE THROUGH THE
THURSDAY. NORTHEAST WINDS INCREASE TO 20 TO 25 KNOTS WITH GUSTS
INTO THE MID-30S LIKELY SOUTHWARD AND LOW-30S NORTHWARD. SEAS
INCREASE TO AROUND 5 TO 6 FEET LATE.

OUTLOOK...
WEDNESDAY NIGHT AND THURSDAY...A GALE WARNING IS IN PLACE FOR THE
WATERS OFF DELAWARE AND FOR THE LOWER PART OF DELAWARE BAY. A
SMALL CRAFT ADVISORY IS IN EFFECT FOR OUR REMAINING WATERS. WE ARE
EXPECTING A GUSTY NORTHWEST WIND.

THURSDAY NIGHT THROUGH FRIDAY NIGHT...NORTHWESTERLY WIND GUSTS OF
25 TO 30 KNOTS ARE POSSIBLE.

SATURDAY THROUGH SUNDAY...NO MARINE HEADLINES ARE ANTICIPATED.

&&

.PHI WATCHES/WARNINGS/ADVISORIES...
PA...NONE.
NJ...NONE.
DE...NONE.
MD...NONE.
MARINE...SMALL CRAFT ADVISORY FROM 10 AM WEDNESDAY TO 6 PM EDT THURSDAY
     FOR ANZ450>453.
     GALE WARNING FROM 2 PM WEDNESDAY TO 11 AM EDT THURSDAY FOR
     ANZ431-454-455.
     SMALL CRAFT ADVISORY FROM NOON WEDNESDAY TO 6 AM EDT THURSDAY
     FOR ANZ430.

&&

$$

SYNOPSIS...IOVINO
NEAR TERM...HEAVENER
SHORT TERM...HEAVENER
LONG TERM...IOVINO
AVIATION...IOVINO/HEAVENER
MARINE...IOVINO/HEAVENER







000
FXUS61 KPHI 211721
AFDPHI

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
121 PM EDT TUE OCT 21 2014

.SYNOPSIS...
LOW PRESSURE OVER LAKE ONTARIO WILL SLIDE SOUTHEAST TO THE NEW
JERSEY COAST THIS EVENING. IT SLOWLY INTENSIFIES WEDNESDAY AND
PASSES SOUTHEAST OF CAPE COD THURSDAY NIGHT. HIGH PRESSURE OVER THE
OHIO VALLEY LATE IN THE WEEK WILL AWAIT THE PASSAGE OF A COLD FRONT
SATURDAY NIGHT THEN BUILD OVER THE MID ATLANTIC STATES SUNDAY AND
MONDAY.

&&

.NEAR TERM /UNTIL 6 PM THIS EVENING/...
ADDED THUNDER TO EXTREME EASTERN NEW JERSEY FOR A COUPLE HOURS AS
WE ARE SEEING RAPIDLY FORMING CONVECTION IN EASTERN OCEAN AND
MONMOUTH COUNTIES. WE HAVE RECEIVED MULTIPLE PEA TO DIME SIZE HAIL
REPORTS WITH THESE STORMS ALONG WITH VERY HEAVY RAINFALL. FREEZING
LEVELS ACROSS THE AREA ARE AROUND 8KFT AND WITH AMPLE COLD AIR
ALOFT, THOUGH THE COLDEST PART OF THE COLD POOL IS STILL TO OUR
WEST, LAPSE RATES ARE STEEPENING AND WHEN YOU ADD IN A WEAK PSEUDO-
SEABREEZE FOR THE SURFACE FORCING AND 500-1000J/KG OF MUCAPE TO
TAP INTO RAPID DEVELOPMENT OCCURS. THE GOOD THING IS WITH THIS
ACTIVITY BEING SO CLOSE TO THE COAST, WITH A NORTHEAST MOVEMENT,
IT SHOULD BE OFF THE COAST WITHIN A COUPLE HOURS.

OTHERWISE, THE MAIN FORECAST CHALLENGE CONTINUES TO BE THE TIMING
AND COVERAGE OF THE ASSOCIATED SHOWERS, TO OUR WEST, THIS AFTERNOON AS
ANOTHER STRONG SHORT WAVE ROUNDS THE BASE OF THE TROUGH. WE
CONTINUED SLIGHT CHC TO CHC POPS FOR ISOLATED/SCATTERED SHOWERS
FOR THE AFTERNOON, MOSTLY ACROSS OUR WESTERN ZONES WITH AN
INCREASE TO LIKELY FOR AREAS CLOSER TO THE INCOMING TROUGH.

THE AIRMASS IS MODERATING AHEAD OF THE MAIN UPPER-
LEVEL TROUGH AND THE ASSOCIATED WAA WILL YIELD WARMER AFTERNOON
TEMPERATURES. THERE MAY BE A SQUEEZE PLAY THOUGH AS THE WARMEST
AIR MAY SLIDE UP ACROSS OUR DELMARVA AND EASTERN ZONES. THEREFORE,
A BLEND OF THE NAM/GFS MOS RESULTED IN THE WARMEST HIGH
TEMPERATURES IN THESE AREAS. OTHERWISE, THE FLOW SHOULD START TO
SHIFT AROUND FROM THE SOUTHWEST TO THE NORTHWEST DURING THE COURSE
OF THE DAY AS LOW PRESSURE DEVELOPS OVER OUR AREA BEFORE
CONSOLIDATING SOME JUST TO OUR EAST TOWARD EVENING.

&&

.SHORT TERM /6 PM THIS EVENING THROUGH 6 AM WEDNESDAY/...
A CLOSED LOW WILL STRENGTHEN ACROSS THE MID ATLANTIC AND NORTHEAST
THROUGH TONIGHT. AS THIS OCCURS, SURFACE LOW PRESSURE SHOULD
CONSOLIDATE SOME MORE OFF OF OUR COAST. THE MODEL GUIDANCE OVERALL
SHOWS A SIGNIFICANT SHORT WAVE ROUNDING THE BASE OF THE CLOSED LOW
OVERNIGHT. THIS FEATURE LOOKS TO NEAR OUR SOUTHEASTERN ZONES TOWARD
DAYBREAK. AS THIS OCCURS, LARGE SCALE LIFT IN CONJUNCTION WITH SOME
POTENTIAL FRONTOGENETIC FORCING ON THE WEST SIDE OF THE SURFACE LOW
SHOULD ORGANIZE AND AREA OF RAIN. THIS LOOKS TO GENERALLY BE ACROSS
THE EASTERN HALF OF THE CWA. AS A RESULT, LIKELY POPS ARE CARRIED
ACROSS MUCH OF THE CWA ESPECIALLY LATE WITH THE SLIGHTLY HIGHER
VALUES ACROSS THE EASTERN ZONES.

WHILE ISOLATED THUNDER CANNOT BE RULED OUT ESPECIALLY ACROSS THE
EASTERN AREAS AS AT LEAST SOME MID LEVEL INSTABILITY COULD BE
PRESENT, THE CHC APPEARS TO BE RATHER LOW AND THEREFORE IT WAS NOT
CARRIED ATTM. THE POTENTIALLY DEVELOPING RAIN AREA HAS THE SIGNATURE
OF WHAT COULD BE THE START OF A PIVOT REGION ACROSS AT LEAST A
PORTION OF OUR AREA STARTING NEAR DAYBREAK. THIS WOULD BE DUE TO THE
CLOSED LOW MOVING OVERHEAD AND THE STRONG SHORT WAVE PIVOTING UP
FROM THE SOUTHWEST AS THE SURFACE LOW ORGANIZES SOME MORE OFFSHORE.

AS FOR LOW TEMPERATURES, WE UTILIZED MAINLY AN EVEN NAM/GFS MOS
BLEND. WHILE THE WINDS SHOULD BE LIGHT FOR MOST, A NORTHERLY WIND
SHOULD START TO INCREASE SOME MAINLY LATE AS THE SYSTEM AS A WHOLE
STARTS TO BECOME BETTER ORGANIZED TO OUR EAST.

&&

.LONG TERM /WEDNESDAY THROUGH MONDAY/...
500 MB: A LARGE AND VERTICALLY DEEP CLOSED LOW ALONG THE MID ATLANTIC
COAST TO START THE PERIOD WILL SLIDE TO THE EAST OF NEW ENGLAND FRIDAY.
A POTENTIALLY STRONG SHORT WAVE IS SLATED TO MOVE FROM SOUTH CENTRAL
CANADA SATURDAY THROUGH SOUTHEAST CANADA SUNDAY THEN TO BE FOLLOWED
BY TEMPORARY RIDGING NEXT MONDAY.

TEMPERATURES: CALENDAR DAY AVG TEMPS FOR OCTOBER WERE ABOUT 2 DEGREES
ABOVE NORMAL THROUGH THE 20TH AND DIFFICULT TO BELIEVE THIS MONTH
CAN NOW AVERAGE NORMAL OR BELOW. DAILY AVERAGES WILL B A LITTLE
ABOVE NORMAL THROUGH FRIDAY WITH MINIMUM TEMPS SIGNIFICANTLY ABOVE
NORMAL AND MAXIMUMS NEAR OR SLIGHTLY BELOW NORMAL. ABOVE NORMAL TEMPS
CONTINUE SATURDAY WITH A POSSIBLE BRIEF COOLING TO NEAR NORMAL SUNDAY
BEFORE WARMING WELL ABOVE NORMAL EARLY NEXT WEEK.

FORECAST BASIS: UNLESS OTHERWISE NOTED THE LONG TERM PERIOD OF THIS
FORECAST IS GENERALLY BASED ON A 50 50 BLEND OF THE 00Z/21 NAM/GFS
MOS FOR THE PERIOD WEDNESDAY-THURSDAY...THE 00Z/21 GFS MOS THURSDAY
NIGHT AND FRIDAY...THEN THEREAFTER (FRIDAY NIGHT ONWARD) THE 0502Z/21
WPC GRIDDED GUIDANCE. THE 00Z/21 NCEP GUIDANCE MAXIMUM TEMPS MAY BE
SIGNIFICANTLY TOO WARM WEDNESDAY, THURSDAY AND NEXT SUNDAY. THE
WED/THU 00Z/21 NCEP MOS GUIDANCE WAS BLENDED DOWN WITH THE 00Z/21
ECMWF TEMPS. WEDNESDAY AND THURSDAY COULD BE EVEN COOLER THAN THE
330 AM FCST ISSUANCE INDICATED.

PRECIPITATION PROBABILITY GUIDANCE IS CHECKED AGAINST THE 21Z/20
SREF 3HRLY POPS FOR .01 THROUGH 12Z FRIDAY AND THEREAFTER THE
00Z/21 GEFS 6HR POPS FOR 0.05.

THE DAILIES BELOW...

WED-THU...PERIODS OF SHOWERS IN THE DEEP CYCLONIC FLOW WITH  UNSTABLE
MID LVLS..EVEN SMALL POTENTIAL OF THUNDER NNJ WHERE SWI IS SUB ZERO
AT TIMES. A TROWAL CURLS WESTWARD AROUND THE NORTHWEST SIDE OF
THE DEEP CYCLONIC CIRCULATION. RAIN SHOULD BE HEAVY AT TIMES
WEDNESDAY ALONG THE COAST AND THEN POSSIBLY THURSDAY IN NNJ NEAR
THE AXIS OF THE 850 MB WIND SHIFT (850 MB VORTICITY AXIS) FROM NE
TO NW AND COINCIDENT WITH THE TROWAL.
CONFIDENCE: ABOVE AVERAGE.

THU NIGHT-FRIDAY...AS THE LOW ALOFT MOVES AWAY TO OUR NORTHEAST
THE POTENTIAL FOR RAIN SHOWERS SHOULD GRADUALLY DIMINISH IN OUR
AREA. CLOUD COVER WILL STILL BE PREDOMINANT.

CONFIDENCE: AVERAGE SINCE TIMING OF THE IMPROVEMENT IS UNCERTAIN.

THIS WEEKEND...A SHORT WAVE WITH A 12 HR HFC OF OVER 120 METERS
PASSES THRU NYS AND NEW ENGLAND SAT AND SAT NIGHT. 850 TEMPS IN
ITS WAKE COOL 6C ON THE ECMWF FOR NEXT SUNDAY. THE SHORT WAVE
IS NOT EXPECTED TO HAVE MUCH MOISTURE ASSOCIATED WITH IT. THEREFORE,
WE ARE NOT ANTICIPATING ANY RAIN.

CONFIDENCE: AVERAGE...JUST A MATTER OF INTENSITY OF THE SHORT
WAVE DIVING SEWD TOWARD THE NE USA SAT EVENING AND THE RESULTANT
COOLER 850MB TEMPERATURES ON SUNDAY.

NEXT MONDAY...A MID LEVEL RIDGE FROM THE WEST SHOULD BUILD TOWARD
OUR REGION WHEN THE NICEST WEATHER OF THIS 6 DAY EXTENDED PERIOD
SHOULD OCCUR.  CONFIDENCE: AVERAGE FOR A DAY 7 FORECAST.

&&

.AVIATION /17Z TUESDAY THROUGH SATURDAY/...
THE FOLLOWING DISCUSSION IS FOR KPHL, KPNE, KTTN, KABE, KRDG,
KILG, KMIV, KACY AND SURROUNDING AREAS.

TODAY...MOSTLY VFR. SOME SHOWERS WILL BE AROUND THE AREA AS LOW
PRESSURE DEVELOPS OVERHEAD BEFORE STARTING TO CONSOLIDATE SOME
JUST TO OUR EAST TOWARD EVENING. WHILE MVFR CONDITIONS CAN OCCUR
FOR A TIME WITH SHOWERS, THERE IS SOME LOWER CONFIDENCE ON THE
TIMING AND AREAL COVERAGE. THERE IS THE POTENTIAL FOR A LOW-TOPPED
THUNDERSTORM TO DEVELOP THIS AFTERNOON, HOWEVER THIS LOOKS TO BE
ISOLATED IF IT WERE TO DEVELOP. A SOUTH-SOUTHWEST WIND WILL SHIFT
TO THE WEST AND NORTHWEST DURING THE COURSE OF THE DAY, HOWEVER
SPEEDS ARE EXPECTED TO BE AROUND 5 KNOTS.

TONIGHT...VFR CEILINGS OVERALL. THERE IS THE POTENTIAL FOR MVFR
VISIBILITIES AT TIMES WITH SOME SHOWERS. A MORE ORGANIZED AREA OF
RAIN SHOULD DEVELOP ESPECIALLY LATE, WHERE SOME MVFR CEILINGS
SHOULD START TO DEVELOP. LOWER CONFIDENCE ON THE MVFR CEILINGS. THE
WINDS ARE ANTICIPATED TO BECOME NORTH TO NORTHEAST NEAR 5 KNOTS,
BUT INCREASE SOME TOWARD DAYBREAK.

OUTLOOK...
WEDNESDAY THROUGH THURSDAY...CONDITIONS VARYING BETWEEN VFR CIGS AND
MVFR CONDITIONS IN PERIODS OF SHOWERY RAINS. POTENTIAL BRIEF IFR
CONDITIONS KABE...KTTN AND KACY. NORTH NORTHWEST WIND GUSTS 20 KT
WEDNESDAY AND 25 TO 30 KT THURSDAY. CONFIDENCE: ABOVE AVERAGE.

THURSDAY NIGHT AND FRIDAY...MAINLY VFR CIGS WITH A CHANCE OF SHOWERS.
NORTHWEST WIND GUSTS 20-25 KT.  CONFIDENCE: ABOVE AVERAGE.

SATURDAY...VFR SCT-BKN AOA 5000 FT.  NORTHWEST WIND GUSTS 15 TO 20 KT.
CONFIDENCE: ABOVE AVERAGE.

&&

.MARINE...
TODAY AND TONIGHT...LOW PRESSURE DEVELOPING OVERHEAD WILL START TO
CONSOLIDATE SOME OFFSHORE TONIGHT. THIS WILL RESULT A SOUTHWESTERLY
WIND TURNING TO THE WEST AND NORTHWEST TODAY THEN NORTH-NORTHEAST
DURING TONIGHT. GIVEN THE NEARBY LOCATION OF THE ORGANIZING SURFACE
LOW, THE FLOW IS FORECAST TO BE ON THE LIGHTER SIDE. AFTER SOME
SURGE IN THE SEAS OFFSHORE EARLIER, THE SEAS ARE EXPECTED TO BE
BELOW ADVISORY CRITERIA THROUGH TONIGHT. THE NORTHERLY WINDS MAY
START TO INCREASE THOUGH TOWARD DAYBREAK WEDNESDAY.

OUTLOOK...
MIDWEEK...A GALE WATCH WAS ISSUED FOR MOST OF OUR WATERS...FOR
OCNL GUSTS AROUND 35 KT WEDNESDAY AFTN POSSIBLY INTO MIDDAY
THURSDAY. ONLY THE UPPER PART OF DELAWARE BAY IS WITHOUT A GALE
WATCH AND THERE WE ISSUED AN SCA.

FUTURE FORECASTS WILL DETERMINE WHETHER THE GALE WATCH IS A BIT
TOO ROBUST AND WE`LL NEED TO SETTLE FOR A STRONG SCA. FOR NOW...BE
PREPARED FOR THE POSSIBILITY OF GALES. AT THIS TIME...AM 60 PERCENT
CONFIDENT THAT AT LEAST THE S NJ AND DE COASTAL WATERS WILL VERIFY
A GALE BY THURSDAY. CONFIDENCE: A BIT ABOVE AVERAGE.


THURSDAY NIGHT THROUGH FRIDAY NIGHT...NORTHWESTERLY WIND GUSTS OF
25 TO 30 KNOTS AT TIMES. SCA LIKELY. CONFIDENCE: ABOVE AVERAGE

SATURDAY...NO MARINE HEADLINES ARE ANTICIPATED. NORTHWEST WIND GUSTS
15-20 KT. CONFIDENCE: ABOVE AVERAGE.

&&

.PHI WATCHES/WARNINGS/ADVISORIES...
PA...NONE.
NJ...NONE.
DE...NONE.
MD...NONE.
MARINE...GALE WATCH FROM WEDNESDAY AFTERNOON THROUGH LATE WEDNESDAY
     NIGHT FOR ANZ431-450>455.
     SMALL CRAFT ADVISORY FROM NOON WEDNESDAY TO 6 AM EDT THURSDAY
     FOR ANZ430.

&&

$$
SYNOPSIS...DRAG
NEAR TERM...GORSE/HEAVENER
SHORT TERM...GORSE
LONG TERM...DRAG
AVIATION...DRAG/GORSE
MARINE...DRAG/GORSE







000
FXUS61 KPHI 211403
AFDPHI

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1003 AM EDT TUE OCT 21 2014

.SYNOPSIS...
LOW PRESSURE OVER LAKE ONTARIO WILL SLIDE SOUTHEAST TO THE NEW
JERSEY COAST THIS EVENING. IT SLOWLY INTENSIFIES WEDNESDAY AND
PASSES SOUTHEAST OF CAPE COD THURSDAY NIGHT. HIGH PRESSURE OVER THE
OHIO VALLEY LATE IN THE WEEK WILL AWAIT THE PASSAGE OF A COLD FRONT
SATURDAY NIGHT THEN BUILD OVER THE MID ATLANTIC STATES SUNDAY AND
MONDAY.

&&

.NEAR TERM /UNTIL 6 PM THIS EVENING/...
CHANGES TO THE GRIDS THIS MORNING INCLUDE A LOWERING OF THE POPS
AND SKY COVER AS THE DRY SLOT HAS REALLY PUNCHED INTO THE REGION
FROM THE SOUTHWEST. REGIONAL RADAR STILL SHOWING SOME LIGHT
ACTIVITY ACROSS SOUTHERN DELMARVA AND FURTHER OFFSHORE AND SOME
MORE MODERATE LOOKING SHOWERS IN NORTHERN NEW JERSEY. BOTH OF
THESE FEATURES ARE MOVING TOWARDS THE NORTHEAST AND AWAY FROM OUR
REGION. WATER VAPOR SATELLITE IMAGERY SHOWS THE ROBUST MID-LEVEL
SHORTWAVE MOVING INTO LOWER NEW YORK STATE AND WITH IT THE BETTER
LIFT AND DYNAMICS THUS ARE DECREASING TREND IN POPS THROUGH THE
EARLY AFTERNOON. SKY COVER HAS THE SAME TREND THIS MORNING AS DO
THE POPS BUT WITH BETTER LOW-LEVEL MOISTURE THAN THE PAST COUPLE
OF DAYS AND NEARING THE CONVECTIVE TEMPERATURES WE SHOULD SEE A
SELF DESTRUCTING SKY THIS AFTERNOON.

OTHERWISE, THE MAIN FORECAST CHALLENGE IS THE TIMING AND COVERAGE
OF THE ASSOCIATED SHOWERS THIS AFTERNOON AS ANOTHER STRONG SHORT
WAVE ROUNDS THE BASE OF THE TROUGH. THE SOUNDINGS SHOW SOME
INSTABILITY DEVELOPING, BUT THIS IS MOSTLY CONFINED TO THE LOWEST
LEVELS WITH PERHAPS AN ISOLATED LOW-TOPPED STORM. GIVEN LESS
CERTAINTY, WE HELD OFF ON ADDING A THUNDER MENTION. WE CONTINUED
SLIGHT CHC TO CHC POPS FOR ISOLATED/SCATTERED SHOWERS THROUGH THE
DAY, MOSTLY ACROSS OUR WESTERN ZONES WITH AN INCREASE TO FOR AREAS
CLOSER TO THE INCOMING TROUGH.

THE AIRMASS IS MODERATING AHEAD OF THE MAIN UPPER-
LEVEL TROUGH AND THE ASSOCIATED WAA WILL YIELD WARMER AFTERNOON
TEMPERATURES. THERE MAY BE A SQUEEZE PLAY THOUGH AS THE WARMEST
AIR MAY SLIDE UP ACROSS OUR DELMARVA AND EASTERN ZONES. THEREFORE,
A BLEND OF THE NAM/GFS MOS RESULTED IN THE WARMEST HIGH
TEMPERATURES IN THESE AREAS. OTHERWISE, THE FLOW SHOULD START TO
SHIFT AROUND FROM THE SOUTHWEST TO THE NORTHWEST DURING THE COURSE
OF THE DAY AS LOW PRESSURE DEVELOPS OVER OUR AREA BEFORE
CONSOLIDATING SOME JUST TO OUR EAST TOWARD EVENING.

&&

.SHORT TERM /6 PM THIS EVENING THROUGH 6 AM WEDNESDAY/...
A CLOSED LOW WILL STRENGTHEN ACROSS THE MID ATLANTIC AND NORTHEAST
THROUGH TONIGHT. AS THIS OCCURS, SURFACE LOW PRESSURE SHOULD
CONSOLIDATE SOME MORE OFF OF OUR COAST. THE MODEL GUIDANCE OVERALL
SHOWS A SIGNIFICANT SHORT WAVE ROUNDING THE BASE OF THE CLOSED LOW
OVERNIGHT. THIS FEATURE LOOKS TO NEAR OUR SOUTHEASTERN ZONES TOWARD
DAYBREAK. AS THIS OCCURS, LARGE SCALE LIFT IN CONJUNCTION WITH SOME
POTENTIAL FRONTOGENETIC FORCING ON THE WEST SIDE OF THE SURFACE LOW
SHOULD ORGANIZE AND AREA OF RAIN. THIS LOOKS TO GENERALLY BE ACROSS
THE EASTERN HALF OF THE CWA. AS A RESULT, LIKELY POPS ARE CARRIED
ACROSS MUCH OF THE CWA ESPECIALLY LATE WITH THE SLIGHTLY HIGHER
VALUES ACROSS THE EASTERN ZONES.

WHILE ISOLATED THUNDER CANNOT BE RULED OUT ESPECIALLY ACROSS THE
EASTERN AREAS AS AT LEAST SOME MID LEVEL INSTABILITY COULD BE
PRESENT, THE CHC APPEARS TO BE RATHER LOW AND THEREFORE IT WAS NOT
CARRIED ATTM. THE POTENTIALLY DEVELOPING RAIN AREA HAS THE SIGNATURE
OF WHAT COULD BE THE START OF A PIVOT REGION ACROSS AT LEAST A
PORTION OF OUR AREA STARTING NEAR DAYBREAK. THIS WOULD BE DUE TO THE
CLOSED LOW MOVING OVERHEAD AND THE STRONG SHORT WAVE PIVOTING UP
FROM THE SOUTHWEST AS THE SURFACE LOW ORGANIZES SOME MORE OFFSHORE.

AS FOR LOW TEMPERATURES, WE UTILIZED MAINLY AN EVEN NAM/GFS MOS
BLEND. WHILE THE WINDS SHOULD BE LIGHT FOR MOST, A NORTHERLY WIND
SHOULD START TO INCREASE SOME MAINLY LATE AS THE SYSTEM AS A WHOLE
STARTS TO BECOME BETTER ORGANIZED TO OUR EAST.

&&

.LONG TERM /WEDNESDAY THROUGH MONDAY/...
500 MB: A LARGE AND VERTICALLY DEEP CLOSED LOW ALONG THE MID ATLANTIC
COAST TO START THE PERIOD WILL SLIDE TO THE EAST OF NEW ENGLAND FRIDAY.
A POTENTIALLY STRONG SHORT WAVE IS SLATED TO MOVE FROM SOUTH CENTRAL
CANADA SATURDAY THROUGH SOUTHEAST CANADA SUNDAY THEN TO BE FOLLOWED
BY TEMPORARY RIDGING NEXT MONDAY.

TEMPERATURES: CALENDAR DAY AVG TEMPS FOR OCTOBER WERE ABOUT 2 DEGREES
ABOVE NORMAL THROUGH THE 20TH AND DIFFICULT TO BELIEVE THIS MONTH
CAN NOW AVERAGE NORMAL OR BELOW. DAILY AVERAGES WILL B A LITTLE
ABOVE NORMAL THROUGH FRIDAY WITH MINIMUM TEMPS SIGNIFICANTLY ABOVE
NORMAL AND MAXIMUMS NEAR OR SLIGHTLY BELOW NORMAL. ABOVE NORMAL TEMPS
CONTINUE SATURDAY WITH A POSSIBLE BRIEF COOLING TO NEAR NORMAL SUNDAY
BEFORE WARMING WELL ABOVE NORMAL EARLY NEXT WEEK.

FORECAST BASIS: UNLESS OTHERWISE NOTED THE LONG TERM PERIOD OF THIS
FORECAST IS GENERALLY BASED ON A 50 50 BLEND OF THE 00Z/21 NAM/GFS
MOS FOR THE PERIOD WEDNESDAY-THURSDAY...THE 00Z/21 GFS MOS THURSDAY
NIGHT AND FRIDAY...THEN THEREAFTER (FRIDAY NIGHT ONWARD) THE 0502Z/21
WPC GRIDDED GUIDANCE. THE 00Z/21 NCEP GUIDANCE MAXIMUM TEMPS MAY BE
SIGNIFICANTLY TOO WARM WEDNESDAY, THURSDAY AND NEXT SUNDAY. THE
WED/THU 00Z/21 NCEP MOS GUIDANCE WAS BLENDED DOWN WITH THE 00Z/21
ECMWF TEMPS. WEDNESDAY AND THURSDAY COULD BE EVEN COOLER THAN THE
330 AM FCST ISSUANCE INDICATED.

PRECIPITATION PROBABILITY GUIDANCE IS CHECKED AGAINST THE 21Z/20
SREF 3HRLY POPS FOR .01 THROUGH 12Z FRIDAY AND THEREAFTER THE
00Z/21 GEFS 6HR POPS FOR 0.05.

THE DAILIES BELOW...

WED-THU...PERIODS OF SHOWERS IN THE DEEP CYCLONIC FLOW WITH  UNSTABLE
MID LVLS..EVEN SMALL POTENTIAL OF THUNDER NNJ WHERE SWI IS SUB ZERO
AT TIMES. A TROWAL CURLS WESTWARD AROUND THE NORTHWEST SIDE OF
THE DEEP CYCLONIC CIRCULATION. RAIN SHOULD BE HEAVY AT TIMES
WEDNESDAY ALONG THE COAST AND THEN POSSIBLY THURSDAY IN NNJ NEAR
THE AXIS OF THE 850 MB WIND SHIFT (850 MB VORTICITY AXIS) FROM NE
TO NW AND COINCIDENT WITH THE TROWAL.
CONFIDENCE: ABOVE AVERAGE.

THU NIGHT-FRIDAY...AS THE LOW ALOFT MOVES AWAY TO OUR NORTHEAST
THE POTENTIAL FOR RAIN SHOWERS SHOULD GRADUALLY DIMINISH IN OUR
AREA. CLOUD COVER WILL STILL BE PREDOMINANT.

CONFIDENCE: AVERAGE SINCE TIMING OF THE IMPROVEMENT IS UNCERTAIN.

THIS WEEKEND...A SHORT WAVE WITH A 12 HR HFC OF OVER 120 METERS
PASSES THRU NYS AND NEW ENGLAND SAT AND SAT NIGHT. 850 TEMPS IN
ITS WAKE COOL 6C ON THE ECMWF FOR NEXT SUNDAY. THE SHORT WAVE
IS NOT EXPECTED TO HAVE MUCH MOISTURE ASSOCIATED WITH IT. THEREFORE,
WE ARE NOT ANTICIPATING ANY RAIN.

CONFIDENCE: AVERAGE...JUST A MATTER OF INTENSITY OF THE SHORT
WAVE DIVING SEWD TOWARD THE NE USA SAT EVENING AND THE RESULTANT
COOLER 850MB TEMPERATURES ON SUNDAY.

NEXT MONDAY...A MID LEVEL RIDGE FROM THE WEST SHOULD BUILD TOWARD
OUR REGION WHEN THE NICEST WEATHER OF THIS 6 DAY EXTENDED PERIOD
SHOULD OCCUR.  CONFIDENCE: AVERAGE FOR A DAY 7 FORECAST.

&&

.AVIATION /14Z TUESDAY THROUGH SATURDAY/...
THE FOLLOWING DISCUSSION IS FOR KPHL, KPNE, KTTN, KABE, KRDG,
KILG, KMIV, KACY AND SURROUNDING AREAS.

TODAY...MOSTLY VFR. SOME SHOWERS WILL BE AROUND THE AREA AS LOW
PRESSURE DEVELOPS OVERHEAD BEFORE STARTING TO CONSOLIDATE SOME
JUST TO OUR EAST TOWARD EVENING. WHILE MVFR CONDITIONS CAN OCCUR
FOR A TIME WITH SHOWERS, THERE IS SOME LOWER CONFIDENCE ON THE
TIMING AND AREAL COVERAGE. THERE IS THE POTENTIAL FOR A LOW-TOPPED
THUNDERSTORM TO DEVELOP THIS AFTERNOON, HOWEVER THIS LOOKS TO BE
ISOLATED IF IT WERE TO DEVELOP. A SOUTH-SOUTHWEST WIND WILL SHIFT
TO THE WEST AND NORTHWEST DURING THE COURSE OF THE DAY, HOWEVER
SPEEDS ARE EXPECTED TO BE AROUND 5 KNOTS.

TONIGHT...VFR CEILINGS OVERALL. THERE IS THE POTENTIAL FOR MVFR
VISIBILITIES AT TIMES WITH SOME SHOWERS. A MORE ORGANIZED AREA OF
RAIN SHOULD DEVELOP ESPECIALLY LATE, WHERE SOME MVFR CEILINGS
SHOULD START TO DEVELOP. LOWER CONFIDENCE ON THE MVFR CEILINGS. THE
WINDS ARE ANTICIPATED TO BECOME NORTH TO NORTHEAST NEAR 5 KNOTS,
BUT INCREASE SOME TOWARD DAYBREAK.

OUTLOOK...
WEDNESDAY THROUGH THURSDAY...CONDITIONS VARYING BETWEEN VFR CIGS AND
MVFR CONDITIONS IN PERIODS OF SHOWERY RAINS. POTENTIAL BRIEF IFR
CONDITIONS KABE...KTTN AND KACY. NORTH NORTHWEST WIND GUSTS 20 KT
WEDNESDAY AND 25 TO 30 KT THURSDAY. CONFIDENCE: ABOVE AVERAGE.

THURSDAY NIGHT AND FRIDAY...MAINLY VFR CIGS WITH A CHANCE OF SHOWERS.
NORTHWEST WIND GUSTS 20-25 KT.  CONFIDENCE: ABOVE AVERAGE.

SATURDAY...VFR SCT-BKN AOA 5000 FT.  NORTHWEST WIND GUSTS 15 TO 20 KT.
CONFIDENCE: ABOVE AVERAGE.

&&

.MARINE...
TODAY AND TONIGHT...LOW PRESSURE DEVELOPING OVERHEAD WILL START TO
CONSOLIDATE SOME OFFSHORE TONIGHT. THIS WILL RESULT A SOUTHWESTERLY
WIND TURNING TO THE WEST AND NORTHWEST TODAY THEN NORTH-NORTHEAST
DURING TONIGHT. GIVEN THE NEARBY LOCATION OF THE ORGANIZING SURFACE
LOW, THE FLOW IS FORECAST TO BE ON THE LIGHTER SIDE. AFTER SOME
SURGE IN THE SEAS OFFSHORE EARLIER, THE SEAS ARE EXPECTED TO BE
BELOW ADVISORY CRITERIA THROUGH TONIGHT. THE NORTHERLY WINDS MAY
START TO INCREASE THOUGH TOWARD DAYBREAK WEDNESDAY.

OUTLOOK...
MIDWEEK...A GALE WATCH WAS ISSUED FOR MOST OF OUR WATERS...FOR
OCNL GUSTS AROUND 35 KT WEDNESDAY AFTN POSSIBLY INTO MIDDAY
THURSDAY. ONLY THE UPPER PART OF DELAWARE BAY IS WITHOUT A GALE
WATCH AND THERE WE ISSUED AN SCA.

FUTURE FORECASTS WILL DETERMINE WHETHER THE GALE WATCH IS A BIT
TOO ROBUST AND WE`LL NEED TO SETTLE FOR A STRONG SCA. FOR NOW...BE
PREPARED FOR THE POSSIBILITY OF GALES. AT THIS TIME...AM 60 PERCENT
CONFIDENT THAT AT LEAST THE S NJ AND DE COASTAL WATERS WILL VERIFY
A GALE BY THURSDAY. CONFIDENCE: A BIT ABOVE AVERAGE.


THURSDAY NIGHT THROUGH FRIDAY NIGHT...NORTHWESTERLY WIND GUSTS OF
25 TO 30 KNOTS AT TIMES. SCA LIKELY. CONFIDENCE: ABOVE AVERAGE

SATURDAY...NO MARINE HEADLINES ARE ANTICIPATED. NORTHWEST WIND GUSTS
15-20 KT. CONFIDENCE: ABOVE AVERAGE.

&&

.PHI WATCHES/WARNINGS/ADVISORIES...
PA...NONE.
NJ...NONE.
DE...NONE.
MD...NONE.
MARINE...GALE WATCH FROM WEDNESDAY AFTERNOON THROUGH LATE WEDNESDAY
     NIGHT FOR ANZ431-450>455.
     SMALL CRAFT ADVISORY FROM NOON WEDNESDAY TO 6 AM EDT THURSDAY
     FOR ANZ430.

&&

$$
SYNOPSIS...DRAG
NEAR TERM...GORSE/HEAVENER
SHORT TERM...GORSE
LONG TERM...DRAG
AVIATION...DRAG/GORSE
MARINE...DRAG/GORSE







000
FXUS61 KPHI 211403
AFDPHI

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1003 AM EDT TUE OCT 21 2014

.SYNOPSIS...
LOW PRESSURE OVER LAKE ONTARIO WILL SLIDE SOUTHEAST TO THE NEW
JERSEY COAST THIS EVENING. IT SLOWLY INTENSIFIES WEDNESDAY AND
PASSES SOUTHEAST OF CAPE COD THURSDAY NIGHT. HIGH PRESSURE OVER THE
OHIO VALLEY LATE IN THE WEEK WILL AWAIT THE PASSAGE OF A COLD FRONT
SATURDAY NIGHT THEN BUILD OVER THE MID ATLANTIC STATES SUNDAY AND
MONDAY.

&&

.NEAR TERM /UNTIL 6 PM THIS EVENING/...
CHANGES TO THE GRIDS THIS MORNING INCLUDE A LOWERING OF THE POPS
AND SKY COVER AS THE DRY SLOT HAS REALLY PUNCHED INTO THE REGION
FROM THE SOUTHWEST. REGIONAL RADAR STILL SHOWING SOME LIGHT
ACTIVITY ACROSS SOUTHERN DELMARVA AND FURTHER OFFSHORE AND SOME
MORE MODERATE LOOKING SHOWERS IN NORTHERN NEW JERSEY. BOTH OF
THESE FEATURES ARE MOVING TOWARDS THE NORTHEAST AND AWAY FROM OUR
REGION. WATER VAPOR SATELLITE IMAGERY SHOWS THE ROBUST MID-LEVEL
SHORTWAVE MOVING INTO LOWER NEW YORK STATE AND WITH IT THE BETTER
LIFT AND DYNAMICS THUS ARE DECREASING TREND IN POPS THROUGH THE
EARLY AFTERNOON. SKY COVER HAS THE SAME TREND THIS MORNING AS DO
THE POPS BUT WITH BETTER LOW-LEVEL MOISTURE THAN THE PAST COUPLE
OF DAYS AND NEARING THE CONVECTIVE TEMPERATURES WE SHOULD SEE A
SELF DESTRUCTING SKY THIS AFTERNOON.

OTHERWISE, THE MAIN FORECAST CHALLENGE IS THE TIMING AND COVERAGE
OF THE ASSOCIATED SHOWERS THIS AFTERNOON AS ANOTHER STRONG SHORT
WAVE ROUNDS THE BASE OF THE TROUGH. THE SOUNDINGS SHOW SOME
INSTABILITY DEVELOPING, BUT THIS IS MOSTLY CONFINED TO THE LOWEST
LEVELS WITH PERHAPS AN ISOLATED LOW-TOPPED STORM. GIVEN LESS
CERTAINTY, WE HELD OFF ON ADDING A THUNDER MENTION. WE CONTINUED
SLIGHT CHC TO CHC POPS FOR ISOLATED/SCATTERED SHOWERS THROUGH THE
DAY, MOSTLY ACROSS OUR WESTERN ZONES WITH AN INCREASE TO FOR AREAS
CLOSER TO THE INCOMING TROUGH.

THE AIRMASS IS MODERATING AHEAD OF THE MAIN UPPER-
LEVEL TROUGH AND THE ASSOCIATED WAA WILL YIELD WARMER AFTERNOON
TEMPERATURES. THERE MAY BE A SQUEEZE PLAY THOUGH AS THE WARMEST
AIR MAY SLIDE UP ACROSS OUR DELMARVA AND EASTERN ZONES. THEREFORE,
A BLEND OF THE NAM/GFS MOS RESULTED IN THE WARMEST HIGH
TEMPERATURES IN THESE AREAS. OTHERWISE, THE FLOW SHOULD START TO
SHIFT AROUND FROM THE SOUTHWEST TO THE NORTHWEST DURING THE COURSE
OF THE DAY AS LOW PRESSURE DEVELOPS OVER OUR AREA BEFORE
CONSOLIDATING SOME JUST TO OUR EAST TOWARD EVENING.

&&

.SHORT TERM /6 PM THIS EVENING THROUGH 6 AM WEDNESDAY/...
A CLOSED LOW WILL STRENGTHEN ACROSS THE MID ATLANTIC AND NORTHEAST
THROUGH TONIGHT. AS THIS OCCURS, SURFACE LOW PRESSURE SHOULD
CONSOLIDATE SOME MORE OFF OF OUR COAST. THE MODEL GUIDANCE OVERALL
SHOWS A SIGNIFICANT SHORT WAVE ROUNDING THE BASE OF THE CLOSED LOW
OVERNIGHT. THIS FEATURE LOOKS TO NEAR OUR SOUTHEASTERN ZONES TOWARD
DAYBREAK. AS THIS OCCURS, LARGE SCALE LIFT IN CONJUNCTION WITH SOME
POTENTIAL FRONTOGENETIC FORCING ON THE WEST SIDE OF THE SURFACE LOW
SHOULD ORGANIZE AND AREA OF RAIN. THIS LOOKS TO GENERALLY BE ACROSS
THE EASTERN HALF OF THE CWA. AS A RESULT, LIKELY POPS ARE CARRIED
ACROSS MUCH OF THE CWA ESPECIALLY LATE WITH THE SLIGHTLY HIGHER
VALUES ACROSS THE EASTERN ZONES.

WHILE ISOLATED THUNDER CANNOT BE RULED OUT ESPECIALLY ACROSS THE
EASTERN AREAS AS AT LEAST SOME MID LEVEL INSTABILITY COULD BE
PRESENT, THE CHC APPEARS TO BE RATHER LOW AND THEREFORE IT WAS NOT
CARRIED ATTM. THE POTENTIALLY DEVELOPING RAIN AREA HAS THE SIGNATURE
OF WHAT COULD BE THE START OF A PIVOT REGION ACROSS AT LEAST A
PORTION OF OUR AREA STARTING NEAR DAYBREAK. THIS WOULD BE DUE TO THE
CLOSED LOW MOVING OVERHEAD AND THE STRONG SHORT WAVE PIVOTING UP
FROM THE SOUTHWEST AS THE SURFACE LOW ORGANIZES SOME MORE OFFSHORE.

AS FOR LOW TEMPERATURES, WE UTILIZED MAINLY AN EVEN NAM/GFS MOS
BLEND. WHILE THE WINDS SHOULD BE LIGHT FOR MOST, A NORTHERLY WIND
SHOULD START TO INCREASE SOME MAINLY LATE AS THE SYSTEM AS A WHOLE
STARTS TO BECOME BETTER ORGANIZED TO OUR EAST.

&&

.LONG TERM /WEDNESDAY THROUGH MONDAY/...
500 MB: A LARGE AND VERTICALLY DEEP CLOSED LOW ALONG THE MID ATLANTIC
COAST TO START THE PERIOD WILL SLIDE TO THE EAST OF NEW ENGLAND FRIDAY.
A POTENTIALLY STRONG SHORT WAVE IS SLATED TO MOVE FROM SOUTH CENTRAL
CANADA SATURDAY THROUGH SOUTHEAST CANADA SUNDAY THEN TO BE FOLLOWED
BY TEMPORARY RIDGING NEXT MONDAY.

TEMPERATURES: CALENDAR DAY AVG TEMPS FOR OCTOBER WERE ABOUT 2 DEGREES
ABOVE NORMAL THROUGH THE 20TH AND DIFFICULT TO BELIEVE THIS MONTH
CAN NOW AVERAGE NORMAL OR BELOW. DAILY AVERAGES WILL B A LITTLE
ABOVE NORMAL THROUGH FRIDAY WITH MINIMUM TEMPS SIGNIFICANTLY ABOVE
NORMAL AND MAXIMUMS NEAR OR SLIGHTLY BELOW NORMAL. ABOVE NORMAL TEMPS
CONTINUE SATURDAY WITH A POSSIBLE BRIEF COOLING TO NEAR NORMAL SUNDAY
BEFORE WARMING WELL ABOVE NORMAL EARLY NEXT WEEK.

FORECAST BASIS: UNLESS OTHERWISE NOTED THE LONG TERM PERIOD OF THIS
FORECAST IS GENERALLY BASED ON A 50 50 BLEND OF THE 00Z/21 NAM/GFS
MOS FOR THE PERIOD WEDNESDAY-THURSDAY...THE 00Z/21 GFS MOS THURSDAY
NIGHT AND FRIDAY...THEN THEREAFTER (FRIDAY NIGHT ONWARD) THE 0502Z/21
WPC GRIDDED GUIDANCE. THE 00Z/21 NCEP GUIDANCE MAXIMUM TEMPS MAY BE
SIGNIFICANTLY TOO WARM WEDNESDAY, THURSDAY AND NEXT SUNDAY. THE
WED/THU 00Z/21 NCEP MOS GUIDANCE WAS BLENDED DOWN WITH THE 00Z/21
ECMWF TEMPS. WEDNESDAY AND THURSDAY COULD BE EVEN COOLER THAN THE
330 AM FCST ISSUANCE INDICATED.

PRECIPITATION PROBABILITY GUIDANCE IS CHECKED AGAINST THE 21Z/20
SREF 3HRLY POPS FOR .01 THROUGH 12Z FRIDAY AND THEREAFTER THE
00Z/21 GEFS 6HR POPS FOR 0.05.

THE DAILIES BELOW...

WED-THU...PERIODS OF SHOWERS IN THE DEEP CYCLONIC FLOW WITH  UNSTABLE
MID LVLS..EVEN SMALL POTENTIAL OF THUNDER NNJ WHERE SWI IS SUB ZERO
AT TIMES. A TROWAL CURLS WESTWARD AROUND THE NORTHWEST SIDE OF
THE DEEP CYCLONIC CIRCULATION. RAIN SHOULD BE HEAVY AT TIMES
WEDNESDAY ALONG THE COAST AND THEN POSSIBLY THURSDAY IN NNJ NEAR
THE AXIS OF THE 850 MB WIND SHIFT (850 MB VORTICITY AXIS) FROM NE
TO NW AND COINCIDENT WITH THE TROWAL.
CONFIDENCE: ABOVE AVERAGE.

THU NIGHT-FRIDAY...AS THE LOW ALOFT MOVES AWAY TO OUR NORTHEAST
THE POTENTIAL FOR RAIN SHOWERS SHOULD GRADUALLY DIMINISH IN OUR
AREA. CLOUD COVER WILL STILL BE PREDOMINANT.

CONFIDENCE: AVERAGE SINCE TIMING OF THE IMPROVEMENT IS UNCERTAIN.

THIS WEEKEND...A SHORT WAVE WITH A 12 HR HFC OF OVER 120 METERS
PASSES THRU NYS AND NEW ENGLAND SAT AND SAT NIGHT. 850 TEMPS IN
ITS WAKE COOL 6C ON THE ECMWF FOR NEXT SUNDAY. THE SHORT WAVE
IS NOT EXPECTED TO HAVE MUCH MOISTURE ASSOCIATED WITH IT. THEREFORE,
WE ARE NOT ANTICIPATING ANY RAIN.

CONFIDENCE: AVERAGE...JUST A MATTER OF INTENSITY OF THE SHORT
WAVE DIVING SEWD TOWARD THE NE USA SAT EVENING AND THE RESULTANT
COOLER 850MB TEMPERATURES ON SUNDAY.

NEXT MONDAY...A MID LEVEL RIDGE FROM THE WEST SHOULD BUILD TOWARD
OUR REGION WHEN THE NICEST WEATHER OF THIS 6 DAY EXTENDED PERIOD
SHOULD OCCUR.  CONFIDENCE: AVERAGE FOR A DAY 7 FORECAST.

&&

.AVIATION /14Z TUESDAY THROUGH SATURDAY/...
THE FOLLOWING DISCUSSION IS FOR KPHL, KPNE, KTTN, KABE, KRDG,
KILG, KMIV, KACY AND SURROUNDING AREAS.

TODAY...MOSTLY VFR. SOME SHOWERS WILL BE AROUND THE AREA AS LOW
PRESSURE DEVELOPS OVERHEAD BEFORE STARTING TO CONSOLIDATE SOME
JUST TO OUR EAST TOWARD EVENING. WHILE MVFR CONDITIONS CAN OCCUR
FOR A TIME WITH SHOWERS, THERE IS SOME LOWER CONFIDENCE ON THE
TIMING AND AREAL COVERAGE. THERE IS THE POTENTIAL FOR A LOW-TOPPED
THUNDERSTORM TO DEVELOP THIS AFTERNOON, HOWEVER THIS LOOKS TO BE
ISOLATED IF IT WERE TO DEVELOP. A SOUTH-SOUTHWEST WIND WILL SHIFT
TO THE WEST AND NORTHWEST DURING THE COURSE OF THE DAY, HOWEVER
SPEEDS ARE EXPECTED TO BE AROUND 5 KNOTS.

TONIGHT...VFR CEILINGS OVERALL. THERE IS THE POTENTIAL FOR MVFR
VISIBILITIES AT TIMES WITH SOME SHOWERS. A MORE ORGANIZED AREA OF
RAIN SHOULD DEVELOP ESPECIALLY LATE, WHERE SOME MVFR CEILINGS
SHOULD START TO DEVELOP. LOWER CONFIDENCE ON THE MVFR CEILINGS. THE
WINDS ARE ANTICIPATED TO BECOME NORTH TO NORTHEAST NEAR 5 KNOTS,
BUT INCREASE SOME TOWARD DAYBREAK.

OUTLOOK...
WEDNESDAY THROUGH THURSDAY...CONDITIONS VARYING BETWEEN VFR CIGS AND
MVFR CONDITIONS IN PERIODS OF SHOWERY RAINS. POTENTIAL BRIEF IFR
CONDITIONS KABE...KTTN AND KACY. NORTH NORTHWEST WIND GUSTS 20 KT
WEDNESDAY AND 25 TO 30 KT THURSDAY. CONFIDENCE: ABOVE AVERAGE.

THURSDAY NIGHT AND FRIDAY...MAINLY VFR CIGS WITH A CHANCE OF SHOWERS.
NORTHWEST WIND GUSTS 20-25 KT.  CONFIDENCE: ABOVE AVERAGE.

SATURDAY...VFR SCT-BKN AOA 5000 FT.  NORTHWEST WIND GUSTS 15 TO 20 KT.
CONFIDENCE: ABOVE AVERAGE.

&&

.MARINE...
TODAY AND TONIGHT...LOW PRESSURE DEVELOPING OVERHEAD WILL START TO
CONSOLIDATE SOME OFFSHORE TONIGHT. THIS WILL RESULT A SOUTHWESTERLY
WIND TURNING TO THE WEST AND NORTHWEST TODAY THEN NORTH-NORTHEAST
DURING TONIGHT. GIVEN THE NEARBY LOCATION OF THE ORGANIZING SURFACE
LOW, THE FLOW IS FORECAST TO BE ON THE LIGHTER SIDE. AFTER SOME
SURGE IN THE SEAS OFFSHORE EARLIER, THE SEAS ARE EXPECTED TO BE
BELOW ADVISORY CRITERIA THROUGH TONIGHT. THE NORTHERLY WINDS MAY
START TO INCREASE THOUGH TOWARD DAYBREAK WEDNESDAY.

OUTLOOK...
MIDWEEK...A GALE WATCH WAS ISSUED FOR MOST OF OUR WATERS...FOR
OCNL GUSTS AROUND 35 KT WEDNESDAY AFTN POSSIBLY INTO MIDDAY
THURSDAY. ONLY THE UPPER PART OF DELAWARE BAY IS WITHOUT A GALE
WATCH AND THERE WE ISSUED AN SCA.

FUTURE FORECASTS WILL DETERMINE WHETHER THE GALE WATCH IS A BIT
TOO ROBUST AND WE`LL NEED TO SETTLE FOR A STRONG SCA. FOR NOW...BE
PREPARED FOR THE POSSIBILITY OF GALES. AT THIS TIME...AM 60 PERCENT
CONFIDENT THAT AT LEAST THE S NJ AND DE COASTAL WATERS WILL VERIFY
A GALE BY THURSDAY. CONFIDENCE: A BIT ABOVE AVERAGE.


THURSDAY NIGHT THROUGH FRIDAY NIGHT...NORTHWESTERLY WIND GUSTS OF
25 TO 30 KNOTS AT TIMES. SCA LIKELY. CONFIDENCE: ABOVE AVERAGE

SATURDAY...NO MARINE HEADLINES ARE ANTICIPATED. NORTHWEST WIND GUSTS
15-20 KT. CONFIDENCE: ABOVE AVERAGE.

&&

.PHI WATCHES/WARNINGS/ADVISORIES...
PA...NONE.
NJ...NONE.
DE...NONE.
MD...NONE.
MARINE...GALE WATCH FROM WEDNESDAY AFTERNOON THROUGH LATE WEDNESDAY
     NIGHT FOR ANZ431-450>455.
     SMALL CRAFT ADVISORY FROM NOON WEDNESDAY TO 6 AM EDT THURSDAY
     FOR ANZ430.

&&

$$
SYNOPSIS...DRAG
NEAR TERM...GORSE/HEAVENER
SHORT TERM...GORSE
LONG TERM...DRAG
AVIATION...DRAG/GORSE
MARINE...DRAG/GORSE






000
FXUS61 KPHI 211051
AFDPHI

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
651 AM EDT TUE OCT 21 2014

.SYNOPSIS...
LOW PRESSURE OVER LAKE ONTARIO WILL SLIDE SOUTHEAST TO THE NEW
JERSEY COAST THIS EVENING. IT SLOWLY INTENSIFIES WEDNESDAY AND
PASSES SOUTHEAST OF CAPE COD THURSDAY NIGHT. HIGH PRESSURE OVER THE
OHIO VALLEY LATE IN THE WEEK WILL AWAIT THE PASSAGE OF A COLD FRONT
SATURDAY NIGHT THEN BUILD OVER THE MID ATLANTIC STATES SUNDAY AND
MONDAY.

&&

.NEAR TERM /UNTIL 6 PM THIS EVENING/...
AN UPPER-LEVEL TROUGH WILL CONTINUE TO AMPLIFY INTO THE NORTHEAST
THROUGH TODAY. AN INITIAL STRONG AND COMPACT SHORT WAVE CARVING OUT
THE TROUGH CONTINUES TO WORK ITS WAY ACROSS PENNSYLVANIA EARLY THIS
MORNING. THIS FEATURE IS WELL EVIDENT ON THE WATER VAPOR IMAGERY AS
IT LIFTS EAST-NORTHEASTWARD, AND APPEARS TO BE STRONGER THAN EARLIER
GUIDANCE INDICATED. AS A RESULT, THE DOWNSTREAM WAA AND LOWER LEVEL
CONVERGENCE/LIFT HAS BEEN STRONG ENOUGH TO DEVELOP AND ORGANIZE SOME
SHOWERS, WHICH ARE NOW LIFTING TO OUR NORTH OVERALL.

A STRONGER MID/UPPER LEVEL JET DIVING DOWN THE WEST SIDE OF THE
TROUGH WILL PUSH STRONGER SHORT WAVE ENERGY ALONG. THIS WILL ASSIST
IN CUTTING OFF THE TROUGH FROM THE MAIN FLOW, THEREFORE THIS
UPPER-LEVEL TROUGH WILL BE CLOSING OFF DURING THE COURSE OF THE DAY.
THIS WILL ALSO TAKE LOW PRESSURE NEAR THE EASTERN GREAT LAKES EARLY
THIS MORNING, AND THEN MOVE IT OVER OUR AREA BEFORE IT STARTS TO
EVENTUALLY CONSOLIDATE OFFSHORE. THE MAIN FORECAST CHALLENGE IS THE
TIMING AND COVERAGE OF THE ASSOCIATED SHOWERS. AFTER SOME INITIAL
SHOWERS EARLY THIS MORNING MAINLY ACROSS THE WESTERN ZONES, THERE
SHOULD BE A BREAK BEFORE ADDITIONAL SHOWERS DEVELOP ESPECIALLY
LATER THIS AFTERNOON AS ANOTHER STRONG SHORT WAVE ROUNDS THE BASE
OF THE TROUGH. THE SOUNDINGS SHOW SOME INSTABILITY DEVELOPING, BUT
THIS IS MOSTLY CONFINED TO THE LOWEST LEVELS WITH PERHAPS AN
ISOLATED LOW-TOPPED STORM. GIVEN LESS CERTAINTY, WE HELD OFF ON
ADDING A THUNDER MENTION ATTM. WE CONTINUED SLIGHT CHC TO CHC POPS
FOR ISOLATED/SCATTERED SHOWERS THROUGH THE DAY, ALTHOUGH A TIME OF
LIKELY POPS ACROSS THE WESTERN AREAS CLOSER TO THE INCOMING
TROUGH.

THE AIRMASS IS MODERATING AHEAD OF THE MAIN UPPER-LEVEL TROUGH AND
THE ASSOCIATED WAA WILL YIELD WARMER AFTERNOON TEMPERATURES. THERE
MAY BE A SQUEEZE PLAY THOUGH AS THE WARMEST AIR MAY SLIDE UP ACROSS
OUR DELMARVA AND EASTERN ZONES. THEREFORE, A BLEND OF THE NAM/GFS
MOS RESULTED IN THE WARMEST HIGH TEMPERATURES IN THESE AREAS.
OTHERWISE, THE FLOW SHOULD START TO SHIFT AROUND FROM THE SOUTHWEST
TO THE NORTHWEST DURING THE COURSE OF THE DAY AS LOW PRESSURE
DEVELOPS OVER OUR AREA BEFORE CONSOLIDATING SOME JUST TO OUR EAST
TOWARD EVENING.

&&

.SHORT TERM /6 PM THIS EVENING THROUGH 6 AM WEDNESDAY/...
A CLOSED LOW WILL STRENGTHEN ACROSS THE MID ATLANTIC AND NORTHEAST
THROUGH TONIGHT. AS THIS OCCURS, SURFACE LOW PRESSURE SHOULD
CONSOLIDATE SOME MORE OFF OF OUR COAST. THE MODEL GUIDANCE OVERALL
SHOWS A SIGNIFICANT SHORT WAVE ROUNDING THE BASE OF THE CLOSED LOW
OVERNIGHT. THIS FEATURE LOOKS TO NEAR OUR SOUTHEASTERN ZONES TOWARD
DAYBREAK. AS THIS OCCURS, LARGE SCALE LIFT IN CONJUNCTION WITH SOME
POTENTIAL FRONTOGENETIC FORCING ON THE WEST SIDE OF THE SURFACE LOW
SHOULD ORGANIZE AND AREA OF RAIN. THIS LOOKS TO GENERALLY BE ACROSS
THE EASTERN HALF OF THE CWA. AS A RESULT, LIKELY POPS ARE CARRIED
ACROSS MUCH OF THE CWA ESPECIALLY LATE WITH THE SLIGHTLY HIGHER
VALUES ACROSS THE EASTERN ZONES.

WHILE ISOLATED THUNDER CANNOT BE RULED OUT ESPECIALLY ACROSS THE
EASTERN AREAS AS AT LEAST SOME MID LEVEL INSTABILITY COULD BE
PRESENT, THE CHC APPEARS TO BE RATHER LOW AND THEREFORE IT WAS NOT
CARRIED ATTM. THE POTENTIALLY DEVELOPING RAIN AREA HAS THE SIGNATURE
OF WHAT COULD BE THE START OF A PIVOT REGION ACROSS AT LEAST A
PORTION OF OUR AREA STARTING NEAR DAYBREAK. THIS WOULD BE DUE TO THE
CLOSED LOW MOVING OVERHEAD AND THE STRONG SHORT WAVE PIVOTING UP
FROM THE SOUTHWEST AS THE SURFACE LOW ORGANIZES SOME MORE OFFSHORE.

AS FOR LOW TEMPERATURES, WE UTILIZED MAINLY AN EVEN NAM/GFS MOS
BLEND. WHILE THE WINDS SHOULD BE LIGHT FOR MOST, A NORTHERLY WIND
SHOULD START TO INCREASE SOME MAINLY LATE AS THE SYSTEM AS A WHOLE
STARTS TO BECOME BETTER ORGANIZED TO OUR EAST.

&&

.LONG TERM /WEDNESDAY THROUGH MONDAY/...
500 MB: A LARGE AND VERTICALLY DEEP CLOSED LOW ALONG THE MID ATLANTIC
COAST TO START THE PERIOD WILL SLIDE TO THE EAST OF NEW ENGLAND FRIDAY.
A POTENTIALLY STRONG SHORT WAVE IS SLATED TO MOVE FROM SOUTH CENTRAL
CANADA SATURDAY THROUGH SOUTHEAST CANADA SUNDAY THEN TO BE FOLLOWED
BY TEMPORARY RIDGING NEXT MONDAY.

TEMPERATURES: CALENDAR DAY AVG TEMPS FOR OCTOBER WERE ABOUT 2 DEGREES
ABOVE NORMAL THROUGH THE 20TH AND DIFFICULT TO BELIEVE THIS MONTH
CAN NOW AVERAGE NORMAL OR BELOW. DAILY AVERAGES WILL B A LITTLE
ABOVE NORMAL THROUGH FRIDAY WITH MINIMUM TEMPS SIGNIFICANTLY ABOVE
NORMAL AND MAXIMUMS NEAR OR SLIGHTLY BELOW NORMAL. ABOVE NORMAL TEMPS
CONTINUE SATURDAY WITH A POSSIBLE BRIEF COOLING TO NEAR NORMAL SUNDAY
BEFORE WARMING WELL ABOVE NORMAL EARLY NEXT WEEK.

FORECAST BASIS: UNLESS OTHERWISE NOTED THE LONG TERM PERIOD OF THIS
FORECAST IS GENERALLY BASED ON A 50 50 BLEND OF THE 00Z/21 NAM/GFS
MOS FOR THE PERIOD WEDNESDAY-THURSDAY...THE 00Z/21 GFS MOS THURSDAY
NIGHT AND FRIDAY...THEN THEREAFTER (FRIDAY NIGHT ONWARD) THE 0502Z/21
WPC GRIDDED GUIDANCE. THE 00Z/21 NCEP GUIDANCE MAXIMUM TEMPS MAY BE
SIGNIFICANTLY TOO WARM WEDNESDAY, THURSDAY AND NEXT SUNDAY. THE
WED/THU 00Z/21 NCEP MOS GUIDANCE WAS BLENDED DOWN WITH THE 00Z/21
ECMWF TEMPS. WEDNESDAY AND THURSDAY COULD BE EVEN COOLER THAN THE
330 AM FCST ISSUANCE INDICATED.

PRECIPITATION PROBABILITY GUIDANCE IS CHECKED AGAINST THE 21Z/20
SREF 3HRLY POPS FOR .01 THROUGH 12Z FRIDAY AND THEREAFTER THE
00Z/21 GEFS 6HR POPS FOR 0.05.

THE DAILIES BELOW...

WED-THU...PERIODS OF SHOWERS IN THE DEEP CYCLONIC FLOW WITH  UNSTABLE
MID LVLS..EVEN SMALL POTENTIAL OF THUNDER NNJ WHERE SWI IS SUB ZERO
AT TIMES. A TROWAL CURLS WESTWARD AROUND THE NORTHWEST SIDE OF
THE DEEP CYCLONIC CIRCULATION. RAIN SHOULD BE HEAVY AT TIMES
WEDNESDAY ALONG THE COAST AND THEN POSSIBLY THURSDAY IN NNJ NEAR
THE AXIS OF THE 850 MB WIND SHIFT (850 MB VORTICITY AXIS) FROM NE
TO NW AND COINCIDENT WITH THE TROWAL.
CONFIDENCE: ABOVE AVERAGE.

THU NIGHT-FRIDAY...AS THE LOW ALOFT MOVES AWAY TO OUR NORTHEAST
THE POTENTIAL FOR RAIN SHOWERS SHOULD GRADUALLY DIMINISH IN OUR
AREA. CLOUD COVER WILL STILL BE PREDOMINANT.

CONFIDENCE: AVERAGE SINCE TIMING OF THE IMPROVEMENT IS UNCERTAIN.

THIS WEEKEND...A SHORT WAVE WITH A 12 HR HFC OF OVER 120 METERS
PASSES THRU NYS AND NEW ENGLAND SAT AND SAT NIGHT. 850 TEMPS IN
ITS WAKE COOL 6C ON THE ECMWF FOR NEXT SUNDAY. THE SHORT WAVE
IS NOT EXPECTED TO HAVE MUCH MOISTURE ASSOCIATED WITH IT. THEREFORE,
WE ARE NOT ANTICIPATING ANY RAIN.

CONFIDENCE: AVERAGE...JUST A MATTER OF INTENSITY OF THE SHORT
WAVE DIVING SEWD TOWARD THE NE USA SAT EVENING AND THE RESULTANT
COOLER 850MB TEMPERATURES ON SUNDAY.

NEXT MONDAY...A MID LEVEL RIDGE FROM THE WEST SHOULD BUILD TOWARD
OUR REGION WHEN THE NICEST WEATHER OF THIS 6 DAY EXTENDED PERIOD
SHOULD OCCUR.  CONFIDENCE: AVERAGE FOR A DAY 7 FORECAST.

&&

.AVIATION /12Z TUESDAY THROUGH SATURDAY/...
THE FOLLOWING DISCUSSION IS FOR KPHL, KPNE, KTTN, KABE, KRDG,
KILG, KMIV, KACY AND SURROUNDING AREAS.

TODAY...MOSTLY VFR. SOME SHOWERS WILL BE AROUND THE AREA AS LOW
PRESSURE DEVELOPS OVERHEAD BEFORE STARTING TO CONSOLIDATE SOME
JUST TO OUR EAST TOWARD EVENING. WHILE MVFR CONDITIONS CAN OCCUR
FOR A TIME WITH SHOWERS, THERE IS SOME LOWER CONFIDENCE ON THE
TIMING AND AREAL COVERAGE. THERE IS THE POTENTIAL FOR A LOW-TOPPED
THUNDERSTORM TO DEVELOP THIS AFTERNOON, HOWEVER THIS LOOKS TO BE
ISOLATED IF IT WERE TO DEVELOP. A SOUTH-SOUTHWEST WIND WILL SHIFT
TO THE WEST AND NORTHWEST DURING THE COURSE OF THE DAY, HOWEVER
SPEEDS ARE EXPECTED TO BE AROUND 5 KNOTS.

TONIGHT...VFR CEILINGS OVERALL. THERE IS THE POTENTIAL FOR MVFR
VISIBILITIES AT TIMES WITH SOME SHOWERS. A MORE ORGANIZED AREA OF
RAIN SHOULD DEVELOP ESPECIALLY LATE, WHERE SOME MVFR CEILINGS
SHOULD START TO DEVELOP. LOWER CONFIDENCE ON THE MVFR CEILINGS. THE
WINDS ARE ANTICIPATED TO BECOME NORTH TO NORTHEAST NEAR 5 KNOTS,
BUT INCREASE SOME TOWARD DAYBREAK.

OUTLOOK...
WEDNESDAY THROUGH THURSDAY...CONDITIONS VARYING BETWEEN VFR CIGS AND
MVFR CONDITIONS IN PERIODS OF SHOWERY RAINS. POTENTIAL BRIEF IFR
CONDITIONS KABE...KTTN AND KACY. NORTH NORTHWEST WIND GUSTS 20 KT
WEDNESDAY AND 25 TO 30 KT THURSDAY. CONFIDENCE: ABOVE AVERAGE.

THURSDAY NIGHT AND FRIDAY...MAINLY VFR CIGS WITH A CHANCE OF SHOWERS.
NORTHWEST WIND GUSTS 20-25 KT.  CONFIDENCE: ABOVE AVERAGE.

SATURDAY...VFR SCT-BKN AOA 5000 FT.  NORTHWEST WIND GUSTS 15 TO 20 KT.
CONFIDENCE: ABOVE AVERAGE.

&&

.MARINE...
TODAY AND TONIGHT...LOW PRESSURE DEVELOPING OVERHEAD WILL START TO
CONSOLIDATE SOME OFFSHORE TONIGHT. THIS WILL RESULT A SOUTHWESTERLY
WIND TURNING TO THE WEST AND NORTHWEST TODAY THEN NORTH-NORTHEAST
DURING TONIGHT. GIVEN THE NEARBY LOCATION OF THE ORGANIZING SURFACE
LOW, THE FLOW IS FORECAST TO BE ON THE LIGHTER SIDE. AFTER SOME
SURGE IN THE SEAS OFFSHORE EARLIER, THE SEAS ARE EXPECTED TO BE
BELOW ADVISORY CRITERIA THROUGH TONIGHT. THE NORTHERLY WINDS MAY
START TO INCREASE THOUGH TOWARD DAYBREAK WEDNESDAY.

OUTLOOK...
MIDWEEK...A GALE WATCH WAS ISSUED FOR MOST OF OUR WATERS...FOR
OCNL GUSTS AROUND 35 KT WEDNESDAY AFTN POSSIBLY INTO MIDDAY
THURSDAY. ONLY THE UPPER PART OF DELAWARE BAY IS WITHOUT A GALE
WATCH AND THERE WE ISSUED AN SCA.

FUTURE FORECASTS WILL DETERMINE WHETHER THE GALE WATCH IS A BIT
TOO ROBUST AND WE`LL NEED TO SETTLE FOR A STRONG SCA. FOR NOW...BE
PREPARED FOR THE POSSIBILITY OF GALES. AT THIS TIME...AM 60 PERCENT
CONFIDENT THAT AT LEAST THE S NJ AND DE COASTAL WATERS WILL VERIFY
A GALE BY THURSDAY. CONFIDENCE: A BIT ABOVE AVERAGE.


THURSDAY NIGHT THROUGH FRIDAY NIGHT...NORTHWESTERLY WIND GUSTS OF
25 TO 30 KNOTS AT TIMES. SCA LIKELY. CONFIDENCE: ABOVE AVERAGE

SATURDAY...NO MARINE HEADLINES ARE ANTICIPATED. NORTHWEST WIND GUSTS
15-20 KT. CONFIDENCE: ABOVE AVERAGE.

&&

.PHI WATCHES/WARNINGS/ADVISORIES...
PA...NONE.
NJ...NONE.
DE...NONE.
MD...NONE.
MARINE...GALE WATCH FROM WEDNESDAY AFTERNOON THROUGH LATE WEDNESDAY
     NIGHT FOR ANZ431-450>455.
     SMALL CRAFT ADVISORY FROM NOON WEDNESDAY TO 6 AM EDT THURSDAY
     FOR ANZ430.

&&

$$
SYNOPSIS...DRAG
NEAR TERM...GORSE
SHORT TERM...GORSE
LONG TERM...DRAG
AVIATION...DRAG/GORSE
MARINE...DRAG/GORSE




000
FXUS61 KPHI 211051
AFDPHI

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
651 AM EDT TUE OCT 21 2014

.SYNOPSIS...
LOW PRESSURE OVER LAKE ONTARIO WILL SLIDE SOUTHEAST TO THE NEW
JERSEY COAST THIS EVENING. IT SLOWLY INTENSIFIES WEDNESDAY AND
PASSES SOUTHEAST OF CAPE COD THURSDAY NIGHT. HIGH PRESSURE OVER THE
OHIO VALLEY LATE IN THE WEEK WILL AWAIT THE PASSAGE OF A COLD FRONT
SATURDAY NIGHT THEN BUILD OVER THE MID ATLANTIC STATES SUNDAY AND
MONDAY.

&&

.NEAR TERM /UNTIL 6 PM THIS EVENING/...
AN UPPER-LEVEL TROUGH WILL CONTINUE TO AMPLIFY INTO THE NORTHEAST
THROUGH TODAY. AN INITIAL STRONG AND COMPACT SHORT WAVE CARVING OUT
THE TROUGH CONTINUES TO WORK ITS WAY ACROSS PENNSYLVANIA EARLY THIS
MORNING. THIS FEATURE IS WELL EVIDENT ON THE WATER VAPOR IMAGERY AS
IT LIFTS EAST-NORTHEASTWARD, AND APPEARS TO BE STRONGER THAN EARLIER
GUIDANCE INDICATED. AS A RESULT, THE DOWNSTREAM WAA AND LOWER LEVEL
CONVERGENCE/LIFT HAS BEEN STRONG ENOUGH TO DEVELOP AND ORGANIZE SOME
SHOWERS, WHICH ARE NOW LIFTING TO OUR NORTH OVERALL.

A STRONGER MID/UPPER LEVEL JET DIVING DOWN THE WEST SIDE OF THE
TROUGH WILL PUSH STRONGER SHORT WAVE ENERGY ALONG. THIS WILL ASSIST
IN CUTTING OFF THE TROUGH FROM THE MAIN FLOW, THEREFORE THIS
UPPER-LEVEL TROUGH WILL BE CLOSING OFF DURING THE COURSE OF THE DAY.
THIS WILL ALSO TAKE LOW PRESSURE NEAR THE EASTERN GREAT LAKES EARLY
THIS MORNING, AND THEN MOVE IT OVER OUR AREA BEFORE IT STARTS TO
EVENTUALLY CONSOLIDATE OFFSHORE. THE MAIN FORECAST CHALLENGE IS THE
TIMING AND COVERAGE OF THE ASSOCIATED SHOWERS. AFTER SOME INITIAL
SHOWERS EARLY THIS MORNING MAINLY ACROSS THE WESTERN ZONES, THERE
SHOULD BE A BREAK BEFORE ADDITIONAL SHOWERS DEVELOP ESPECIALLY
LATER THIS AFTERNOON AS ANOTHER STRONG SHORT WAVE ROUNDS THE BASE
OF THE TROUGH. THE SOUNDINGS SHOW SOME INSTABILITY DEVELOPING, BUT
THIS IS MOSTLY CONFINED TO THE LOWEST LEVELS WITH PERHAPS AN
ISOLATED LOW-TOPPED STORM. GIVEN LESS CERTAINTY, WE HELD OFF ON
ADDING A THUNDER MENTION ATTM. WE CONTINUED SLIGHT CHC TO CHC POPS
FOR ISOLATED/SCATTERED SHOWERS THROUGH THE DAY, ALTHOUGH A TIME OF
LIKELY POPS ACROSS THE WESTERN AREAS CLOSER TO THE INCOMING
TROUGH.

THE AIRMASS IS MODERATING AHEAD OF THE MAIN UPPER-LEVEL TROUGH AND
THE ASSOCIATED WAA WILL YIELD WARMER AFTERNOON TEMPERATURES. THERE
MAY BE A SQUEEZE PLAY THOUGH AS THE WARMEST AIR MAY SLIDE UP ACROSS
OUR DELMARVA AND EASTERN ZONES. THEREFORE, A BLEND OF THE NAM/GFS
MOS RESULTED IN THE WARMEST HIGH TEMPERATURES IN THESE AREAS.
OTHERWISE, THE FLOW SHOULD START TO SHIFT AROUND FROM THE SOUTHWEST
TO THE NORTHWEST DURING THE COURSE OF THE DAY AS LOW PRESSURE
DEVELOPS OVER OUR AREA BEFORE CONSOLIDATING SOME JUST TO OUR EAST
TOWARD EVENING.

&&

.SHORT TERM /6 PM THIS EVENING THROUGH 6 AM WEDNESDAY/...
A CLOSED LOW WILL STRENGTHEN ACROSS THE MID ATLANTIC AND NORTHEAST
THROUGH TONIGHT. AS THIS OCCURS, SURFACE LOW PRESSURE SHOULD
CONSOLIDATE SOME MORE OFF OF OUR COAST. THE MODEL GUIDANCE OVERALL
SHOWS A SIGNIFICANT SHORT WAVE ROUNDING THE BASE OF THE CLOSED LOW
OVERNIGHT. THIS FEATURE LOOKS TO NEAR OUR SOUTHEASTERN ZONES TOWARD
DAYBREAK. AS THIS OCCURS, LARGE SCALE LIFT IN CONJUNCTION WITH SOME
POTENTIAL FRONTOGENETIC FORCING ON THE WEST SIDE OF THE SURFACE LOW
SHOULD ORGANIZE AND AREA OF RAIN. THIS LOOKS TO GENERALLY BE ACROSS
THE EASTERN HALF OF THE CWA. AS A RESULT, LIKELY POPS ARE CARRIED
ACROSS MUCH OF THE CWA ESPECIALLY LATE WITH THE SLIGHTLY HIGHER
VALUES ACROSS THE EASTERN ZONES.

WHILE ISOLATED THUNDER CANNOT BE RULED OUT ESPECIALLY ACROSS THE
EASTERN AREAS AS AT LEAST SOME MID LEVEL INSTABILITY COULD BE
PRESENT, THE CHC APPEARS TO BE RATHER LOW AND THEREFORE IT WAS NOT
CARRIED ATTM. THE POTENTIALLY DEVELOPING RAIN AREA HAS THE SIGNATURE
OF WHAT COULD BE THE START OF A PIVOT REGION ACROSS AT LEAST A
PORTION OF OUR AREA STARTING NEAR DAYBREAK. THIS WOULD BE DUE TO THE
CLOSED LOW MOVING OVERHEAD AND THE STRONG SHORT WAVE PIVOTING UP
FROM THE SOUTHWEST AS THE SURFACE LOW ORGANIZES SOME MORE OFFSHORE.

AS FOR LOW TEMPERATURES, WE UTILIZED MAINLY AN EVEN NAM/GFS MOS
BLEND. WHILE THE WINDS SHOULD BE LIGHT FOR MOST, A NORTHERLY WIND
SHOULD START TO INCREASE SOME MAINLY LATE AS THE SYSTEM AS A WHOLE
STARTS TO BECOME BETTER ORGANIZED TO OUR EAST.

&&

.LONG TERM /WEDNESDAY THROUGH MONDAY/...
500 MB: A LARGE AND VERTICALLY DEEP CLOSED LOW ALONG THE MID ATLANTIC
COAST TO START THE PERIOD WILL SLIDE TO THE EAST OF NEW ENGLAND FRIDAY.
A POTENTIALLY STRONG SHORT WAVE IS SLATED TO MOVE FROM SOUTH CENTRAL
CANADA SATURDAY THROUGH SOUTHEAST CANADA SUNDAY THEN TO BE FOLLOWED
BY TEMPORARY RIDGING NEXT MONDAY.

TEMPERATURES: CALENDAR DAY AVG TEMPS FOR OCTOBER WERE ABOUT 2 DEGREES
ABOVE NORMAL THROUGH THE 20TH AND DIFFICULT TO BELIEVE THIS MONTH
CAN NOW AVERAGE NORMAL OR BELOW. DAILY AVERAGES WILL B A LITTLE
ABOVE NORMAL THROUGH FRIDAY WITH MINIMUM TEMPS SIGNIFICANTLY ABOVE
NORMAL AND MAXIMUMS NEAR OR SLIGHTLY BELOW NORMAL. ABOVE NORMAL TEMPS
CONTINUE SATURDAY WITH A POSSIBLE BRIEF COOLING TO NEAR NORMAL SUNDAY
BEFORE WARMING WELL ABOVE NORMAL EARLY NEXT WEEK.

FORECAST BASIS: UNLESS OTHERWISE NOTED THE LONG TERM PERIOD OF THIS
FORECAST IS GENERALLY BASED ON A 50 50 BLEND OF THE 00Z/21 NAM/GFS
MOS FOR THE PERIOD WEDNESDAY-THURSDAY...THE 00Z/21 GFS MOS THURSDAY
NIGHT AND FRIDAY...THEN THEREAFTER (FRIDAY NIGHT ONWARD) THE 0502Z/21
WPC GRIDDED GUIDANCE. THE 00Z/21 NCEP GUIDANCE MAXIMUM TEMPS MAY BE
SIGNIFICANTLY TOO WARM WEDNESDAY, THURSDAY AND NEXT SUNDAY. THE
WED/THU 00Z/21 NCEP MOS GUIDANCE WAS BLENDED DOWN WITH THE 00Z/21
ECMWF TEMPS. WEDNESDAY AND THURSDAY COULD BE EVEN COOLER THAN THE
330 AM FCST ISSUANCE INDICATED.

PRECIPITATION PROBABILITY GUIDANCE IS CHECKED AGAINST THE 21Z/20
SREF 3HRLY POPS FOR .01 THROUGH 12Z FRIDAY AND THEREAFTER THE
00Z/21 GEFS 6HR POPS FOR 0.05.

THE DAILIES BELOW...

WED-THU...PERIODS OF SHOWERS IN THE DEEP CYCLONIC FLOW WITH  UNSTABLE
MID LVLS..EVEN SMALL POTENTIAL OF THUNDER NNJ WHERE SWI IS SUB ZERO
AT TIMES. A TROWAL CURLS WESTWARD AROUND THE NORTHWEST SIDE OF
THE DEEP CYCLONIC CIRCULATION. RAIN SHOULD BE HEAVY AT TIMES
WEDNESDAY ALONG THE COAST AND THEN POSSIBLY THURSDAY IN NNJ NEAR
THE AXIS OF THE 850 MB WIND SHIFT (850 MB VORTICITY AXIS) FROM NE
TO NW AND COINCIDENT WITH THE TROWAL.
CONFIDENCE: ABOVE AVERAGE.

THU NIGHT-FRIDAY...AS THE LOW ALOFT MOVES AWAY TO OUR NORTHEAST
THE POTENTIAL FOR RAIN SHOWERS SHOULD GRADUALLY DIMINISH IN OUR
AREA. CLOUD COVER WILL STILL BE PREDOMINANT.

CONFIDENCE: AVERAGE SINCE TIMING OF THE IMPROVEMENT IS UNCERTAIN.

THIS WEEKEND...A SHORT WAVE WITH A 12 HR HFC OF OVER 120 METERS
PASSES THRU NYS AND NEW ENGLAND SAT AND SAT NIGHT. 850 TEMPS IN
ITS WAKE COOL 6C ON THE ECMWF FOR NEXT SUNDAY. THE SHORT WAVE
IS NOT EXPECTED TO HAVE MUCH MOISTURE ASSOCIATED WITH IT. THEREFORE,
WE ARE NOT ANTICIPATING ANY RAIN.

CONFIDENCE: AVERAGE...JUST A MATTER OF INTENSITY OF THE SHORT
WAVE DIVING SEWD TOWARD THE NE USA SAT EVENING AND THE RESULTANT
COOLER 850MB TEMPERATURES ON SUNDAY.

NEXT MONDAY...A MID LEVEL RIDGE FROM THE WEST SHOULD BUILD TOWARD
OUR REGION WHEN THE NICEST WEATHER OF THIS 6 DAY EXTENDED PERIOD
SHOULD OCCUR.  CONFIDENCE: AVERAGE FOR A DAY 7 FORECAST.

&&

.AVIATION /12Z TUESDAY THROUGH SATURDAY/...
THE FOLLOWING DISCUSSION IS FOR KPHL, KPNE, KTTN, KABE, KRDG,
KILG, KMIV, KACY AND SURROUNDING AREAS.

TODAY...MOSTLY VFR. SOME SHOWERS WILL BE AROUND THE AREA AS LOW
PRESSURE DEVELOPS OVERHEAD BEFORE STARTING TO CONSOLIDATE SOME
JUST TO OUR EAST TOWARD EVENING. WHILE MVFR CONDITIONS CAN OCCUR
FOR A TIME WITH SHOWERS, THERE IS SOME LOWER CONFIDENCE ON THE
TIMING AND AREAL COVERAGE. THERE IS THE POTENTIAL FOR A LOW-TOPPED
THUNDERSTORM TO DEVELOP THIS AFTERNOON, HOWEVER THIS LOOKS TO BE
ISOLATED IF IT WERE TO DEVELOP. A SOUTH-SOUTHWEST WIND WILL SHIFT
TO THE WEST AND NORTHWEST DURING THE COURSE OF THE DAY, HOWEVER
SPEEDS ARE EXPECTED TO BE AROUND 5 KNOTS.

TONIGHT...VFR CEILINGS OVERALL. THERE IS THE POTENTIAL FOR MVFR
VISIBILITIES AT TIMES WITH SOME SHOWERS. A MORE ORGANIZED AREA OF
RAIN SHOULD DEVELOP ESPECIALLY LATE, WHERE SOME MVFR CEILINGS
SHOULD START TO DEVELOP. LOWER CONFIDENCE ON THE MVFR CEILINGS. THE
WINDS ARE ANTICIPATED TO BECOME NORTH TO NORTHEAST NEAR 5 KNOTS,
BUT INCREASE SOME TOWARD DAYBREAK.

OUTLOOK...
WEDNESDAY THROUGH THURSDAY...CONDITIONS VARYING BETWEEN VFR CIGS AND
MVFR CONDITIONS IN PERIODS OF SHOWERY RAINS. POTENTIAL BRIEF IFR
CONDITIONS KABE...KTTN AND KACY. NORTH NORTHWEST WIND GUSTS 20 KT
WEDNESDAY AND 25 TO 30 KT THURSDAY. CONFIDENCE: ABOVE AVERAGE.

THURSDAY NIGHT AND FRIDAY...MAINLY VFR CIGS WITH A CHANCE OF SHOWERS.
NORTHWEST WIND GUSTS 20-25 KT.  CONFIDENCE: ABOVE AVERAGE.

SATURDAY...VFR SCT-BKN AOA 5000 FT.  NORTHWEST WIND GUSTS 15 TO 20 KT.
CONFIDENCE: ABOVE AVERAGE.

&&

.MARINE...
TODAY AND TONIGHT...LOW PRESSURE DEVELOPING OVERHEAD WILL START TO
CONSOLIDATE SOME OFFSHORE TONIGHT. THIS WILL RESULT A SOUTHWESTERLY
WIND TURNING TO THE WEST AND NORTHWEST TODAY THEN NORTH-NORTHEAST
DURING TONIGHT. GIVEN THE NEARBY LOCATION OF THE ORGANIZING SURFACE
LOW, THE FLOW IS FORECAST TO BE ON THE LIGHTER SIDE. AFTER SOME
SURGE IN THE SEAS OFFSHORE EARLIER, THE SEAS ARE EXPECTED TO BE
BELOW ADVISORY CRITERIA THROUGH TONIGHT. THE NORTHERLY WINDS MAY
START TO INCREASE THOUGH TOWARD DAYBREAK WEDNESDAY.

OUTLOOK...
MIDWEEK...A GALE WATCH WAS ISSUED FOR MOST OF OUR WATERS...FOR
OCNL GUSTS AROUND 35 KT WEDNESDAY AFTN POSSIBLY INTO MIDDAY
THURSDAY. ONLY THE UPPER PART OF DELAWARE BAY IS WITHOUT A GALE
WATCH AND THERE WE ISSUED AN SCA.

FUTURE FORECASTS WILL DETERMINE WHETHER THE GALE WATCH IS A BIT
TOO ROBUST AND WE`LL NEED TO SETTLE FOR A STRONG SCA. FOR NOW...BE
PREPARED FOR THE POSSIBILITY OF GALES. AT THIS TIME...AM 60 PERCENT
CONFIDENT THAT AT LEAST THE S NJ AND DE COASTAL WATERS WILL VERIFY
A GALE BY THURSDAY. CONFIDENCE: A BIT ABOVE AVERAGE.


THURSDAY NIGHT THROUGH FRIDAY NIGHT...NORTHWESTERLY WIND GUSTS OF
25 TO 30 KNOTS AT TIMES. SCA LIKELY. CONFIDENCE: ABOVE AVERAGE

SATURDAY...NO MARINE HEADLINES ARE ANTICIPATED. NORTHWEST WIND GUSTS
15-20 KT. CONFIDENCE: ABOVE AVERAGE.

&&

.PHI WATCHES/WARNINGS/ADVISORIES...
PA...NONE.
NJ...NONE.
DE...NONE.
MD...NONE.
MARINE...GALE WATCH FROM WEDNESDAY AFTERNOON THROUGH LATE WEDNESDAY
     NIGHT FOR ANZ431-450>455.
     SMALL CRAFT ADVISORY FROM NOON WEDNESDAY TO 6 AM EDT THURSDAY
     FOR ANZ430.

&&

$$
SYNOPSIS...DRAG
NEAR TERM...GORSE
SHORT TERM...GORSE
LONG TERM...DRAG
AVIATION...DRAG/GORSE
MARINE...DRAG/GORSE





000
FXUS61 KPHI 211051
AFDPHI

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
651 AM EDT TUE OCT 21 2014

.SYNOPSIS...
LOW PRESSURE OVER LAKE ONTARIO WILL SLIDE SOUTHEAST TO THE NEW
JERSEY COAST THIS EVENING. IT SLOWLY INTENSIFIES WEDNESDAY AND
PASSES SOUTHEAST OF CAPE COD THURSDAY NIGHT. HIGH PRESSURE OVER THE
OHIO VALLEY LATE IN THE WEEK WILL AWAIT THE PASSAGE OF A COLD FRONT
SATURDAY NIGHT THEN BUILD OVER THE MID ATLANTIC STATES SUNDAY AND
MONDAY.

&&

.NEAR TERM /UNTIL 6 PM THIS EVENING/...
AN UPPER-LEVEL TROUGH WILL CONTINUE TO AMPLIFY INTO THE NORTHEAST
THROUGH TODAY. AN INITIAL STRONG AND COMPACT SHORT WAVE CARVING OUT
THE TROUGH CONTINUES TO WORK ITS WAY ACROSS PENNSYLVANIA EARLY THIS
MORNING. THIS FEATURE IS WELL EVIDENT ON THE WATER VAPOR IMAGERY AS
IT LIFTS EAST-NORTHEASTWARD, AND APPEARS TO BE STRONGER THAN EARLIER
GUIDANCE INDICATED. AS A RESULT, THE DOWNSTREAM WAA AND LOWER LEVEL
CONVERGENCE/LIFT HAS BEEN STRONG ENOUGH TO DEVELOP AND ORGANIZE SOME
SHOWERS, WHICH ARE NOW LIFTING TO OUR NORTH OVERALL.

A STRONGER MID/UPPER LEVEL JET DIVING DOWN THE WEST SIDE OF THE
TROUGH WILL PUSH STRONGER SHORT WAVE ENERGY ALONG. THIS WILL ASSIST
IN CUTTING OFF THE TROUGH FROM THE MAIN FLOW, THEREFORE THIS
UPPER-LEVEL TROUGH WILL BE CLOSING OFF DURING THE COURSE OF THE DAY.
THIS WILL ALSO TAKE LOW PRESSURE NEAR THE EASTERN GREAT LAKES EARLY
THIS MORNING, AND THEN MOVE IT OVER OUR AREA BEFORE IT STARTS TO
EVENTUALLY CONSOLIDATE OFFSHORE. THE MAIN FORECAST CHALLENGE IS THE
TIMING AND COVERAGE OF THE ASSOCIATED SHOWERS. AFTER SOME INITIAL
SHOWERS EARLY THIS MORNING MAINLY ACROSS THE WESTERN ZONES, THERE
SHOULD BE A BREAK BEFORE ADDITIONAL SHOWERS DEVELOP ESPECIALLY
LATER THIS AFTERNOON AS ANOTHER STRONG SHORT WAVE ROUNDS THE BASE
OF THE TROUGH. THE SOUNDINGS SHOW SOME INSTABILITY DEVELOPING, BUT
THIS IS MOSTLY CONFINED TO THE LOWEST LEVELS WITH PERHAPS AN
ISOLATED LOW-TOPPED STORM. GIVEN LESS CERTAINTY, WE HELD OFF ON
ADDING A THUNDER MENTION ATTM. WE CONTINUED SLIGHT CHC TO CHC POPS
FOR ISOLATED/SCATTERED SHOWERS THROUGH THE DAY, ALTHOUGH A TIME OF
LIKELY POPS ACROSS THE WESTERN AREAS CLOSER TO THE INCOMING
TROUGH.

THE AIRMASS IS MODERATING AHEAD OF THE MAIN UPPER-LEVEL TROUGH AND
THE ASSOCIATED WAA WILL YIELD WARMER AFTERNOON TEMPERATURES. THERE
MAY BE A SQUEEZE PLAY THOUGH AS THE WARMEST AIR MAY SLIDE UP ACROSS
OUR DELMARVA AND EASTERN ZONES. THEREFORE, A BLEND OF THE NAM/GFS
MOS RESULTED IN THE WARMEST HIGH TEMPERATURES IN THESE AREAS.
OTHERWISE, THE FLOW SHOULD START TO SHIFT AROUND FROM THE SOUTHWEST
TO THE NORTHWEST DURING THE COURSE OF THE DAY AS LOW PRESSURE
DEVELOPS OVER OUR AREA BEFORE CONSOLIDATING SOME JUST TO OUR EAST
TOWARD EVENING.

&&

.SHORT TERM /6 PM THIS EVENING THROUGH 6 AM WEDNESDAY/...
A CLOSED LOW WILL STRENGTHEN ACROSS THE MID ATLANTIC AND NORTHEAST
THROUGH TONIGHT. AS THIS OCCURS, SURFACE LOW PRESSURE SHOULD
CONSOLIDATE SOME MORE OFF OF OUR COAST. THE MODEL GUIDANCE OVERALL
SHOWS A SIGNIFICANT SHORT WAVE ROUNDING THE BASE OF THE CLOSED LOW
OVERNIGHT. THIS FEATURE LOOKS TO NEAR OUR SOUTHEASTERN ZONES TOWARD
DAYBREAK. AS THIS OCCURS, LARGE SCALE LIFT IN CONJUNCTION WITH SOME
POTENTIAL FRONTOGENETIC FORCING ON THE WEST SIDE OF THE SURFACE LOW
SHOULD ORGANIZE AND AREA OF RAIN. THIS LOOKS TO GENERALLY BE ACROSS
THE EASTERN HALF OF THE CWA. AS A RESULT, LIKELY POPS ARE CARRIED
ACROSS MUCH OF THE CWA ESPECIALLY LATE WITH THE SLIGHTLY HIGHER
VALUES ACROSS THE EASTERN ZONES.

WHILE ISOLATED THUNDER CANNOT BE RULED OUT ESPECIALLY ACROSS THE
EASTERN AREAS AS AT LEAST SOME MID LEVEL INSTABILITY COULD BE
PRESENT, THE CHC APPEARS TO BE RATHER LOW AND THEREFORE IT WAS NOT
CARRIED ATTM. THE POTENTIALLY DEVELOPING RAIN AREA HAS THE SIGNATURE
OF WHAT COULD BE THE START OF A PIVOT REGION ACROSS AT LEAST A
PORTION OF OUR AREA STARTING NEAR DAYBREAK. THIS WOULD BE DUE TO THE
CLOSED LOW MOVING OVERHEAD AND THE STRONG SHORT WAVE PIVOTING UP
FROM THE SOUTHWEST AS THE SURFACE LOW ORGANIZES SOME MORE OFFSHORE.

AS FOR LOW TEMPERATURES, WE UTILIZED MAINLY AN EVEN NAM/GFS MOS
BLEND. WHILE THE WINDS SHOULD BE LIGHT FOR MOST, A NORTHERLY WIND
SHOULD START TO INCREASE SOME MAINLY LATE AS THE SYSTEM AS A WHOLE
STARTS TO BECOME BETTER ORGANIZED TO OUR EAST.

&&

.LONG TERM /WEDNESDAY THROUGH MONDAY/...
500 MB: A LARGE AND VERTICALLY DEEP CLOSED LOW ALONG THE MID ATLANTIC
COAST TO START THE PERIOD WILL SLIDE TO THE EAST OF NEW ENGLAND FRIDAY.
A POTENTIALLY STRONG SHORT WAVE IS SLATED TO MOVE FROM SOUTH CENTRAL
CANADA SATURDAY THROUGH SOUTHEAST CANADA SUNDAY THEN TO BE FOLLOWED
BY TEMPORARY RIDGING NEXT MONDAY.

TEMPERATURES: CALENDAR DAY AVG TEMPS FOR OCTOBER WERE ABOUT 2 DEGREES
ABOVE NORMAL THROUGH THE 20TH AND DIFFICULT TO BELIEVE THIS MONTH
CAN NOW AVERAGE NORMAL OR BELOW. DAILY AVERAGES WILL B A LITTLE
ABOVE NORMAL THROUGH FRIDAY WITH MINIMUM TEMPS SIGNIFICANTLY ABOVE
NORMAL AND MAXIMUMS NEAR OR SLIGHTLY BELOW NORMAL. ABOVE NORMAL TEMPS
CONTINUE SATURDAY WITH A POSSIBLE BRIEF COOLING TO NEAR NORMAL SUNDAY
BEFORE WARMING WELL ABOVE NORMAL EARLY NEXT WEEK.

FORECAST BASIS: UNLESS OTHERWISE NOTED THE LONG TERM PERIOD OF THIS
FORECAST IS GENERALLY BASED ON A 50 50 BLEND OF THE 00Z/21 NAM/GFS
MOS FOR THE PERIOD WEDNESDAY-THURSDAY...THE 00Z/21 GFS MOS THURSDAY
NIGHT AND FRIDAY...THEN THEREAFTER (FRIDAY NIGHT ONWARD) THE 0502Z/21
WPC GRIDDED GUIDANCE. THE 00Z/21 NCEP GUIDANCE MAXIMUM TEMPS MAY BE
SIGNIFICANTLY TOO WARM WEDNESDAY, THURSDAY AND NEXT SUNDAY. THE
WED/THU 00Z/21 NCEP MOS GUIDANCE WAS BLENDED DOWN WITH THE 00Z/21
ECMWF TEMPS. WEDNESDAY AND THURSDAY COULD BE EVEN COOLER THAN THE
330 AM FCST ISSUANCE INDICATED.

PRECIPITATION PROBABILITY GUIDANCE IS CHECKED AGAINST THE 21Z/20
SREF 3HRLY POPS FOR .01 THROUGH 12Z FRIDAY AND THEREAFTER THE
00Z/21 GEFS 6HR POPS FOR 0.05.

THE DAILIES BELOW...

WED-THU...PERIODS OF SHOWERS IN THE DEEP CYCLONIC FLOW WITH  UNSTABLE
MID LVLS..EVEN SMALL POTENTIAL OF THUNDER NNJ WHERE SWI IS SUB ZERO
AT TIMES. A TROWAL CURLS WESTWARD AROUND THE NORTHWEST SIDE OF
THE DEEP CYCLONIC CIRCULATION. RAIN SHOULD BE HEAVY AT TIMES
WEDNESDAY ALONG THE COAST AND THEN POSSIBLY THURSDAY IN NNJ NEAR
THE AXIS OF THE 850 MB WIND SHIFT (850 MB VORTICITY AXIS) FROM NE
TO NW AND COINCIDENT WITH THE TROWAL.
CONFIDENCE: ABOVE AVERAGE.

THU NIGHT-FRIDAY...AS THE LOW ALOFT MOVES AWAY TO OUR NORTHEAST
THE POTENTIAL FOR RAIN SHOWERS SHOULD GRADUALLY DIMINISH IN OUR
AREA. CLOUD COVER WILL STILL BE PREDOMINANT.

CONFIDENCE: AVERAGE SINCE TIMING OF THE IMPROVEMENT IS UNCERTAIN.

THIS WEEKEND...A SHORT WAVE WITH A 12 HR HFC OF OVER 120 METERS
PASSES THRU NYS AND NEW ENGLAND SAT AND SAT NIGHT. 850 TEMPS IN
ITS WAKE COOL 6C ON THE ECMWF FOR NEXT SUNDAY. THE SHORT WAVE
IS NOT EXPECTED TO HAVE MUCH MOISTURE ASSOCIATED WITH IT. THEREFORE,
WE ARE NOT ANTICIPATING ANY RAIN.

CONFIDENCE: AVERAGE...JUST A MATTER OF INTENSITY OF THE SHORT
WAVE DIVING SEWD TOWARD THE NE USA SAT EVENING AND THE RESULTANT
COOLER 850MB TEMPERATURES ON SUNDAY.

NEXT MONDAY...A MID LEVEL RIDGE FROM THE WEST SHOULD BUILD TOWARD
OUR REGION WHEN THE NICEST WEATHER OF THIS 6 DAY EXTENDED PERIOD
SHOULD OCCUR.  CONFIDENCE: AVERAGE FOR A DAY 7 FORECAST.

&&

.AVIATION /12Z TUESDAY THROUGH SATURDAY/...
THE FOLLOWING DISCUSSION IS FOR KPHL, KPNE, KTTN, KABE, KRDG,
KILG, KMIV, KACY AND SURROUNDING AREAS.

TODAY...MOSTLY VFR. SOME SHOWERS WILL BE AROUND THE AREA AS LOW
PRESSURE DEVELOPS OVERHEAD BEFORE STARTING TO CONSOLIDATE SOME
JUST TO OUR EAST TOWARD EVENING. WHILE MVFR CONDITIONS CAN OCCUR
FOR A TIME WITH SHOWERS, THERE IS SOME LOWER CONFIDENCE ON THE
TIMING AND AREAL COVERAGE. THERE IS THE POTENTIAL FOR A LOW-TOPPED
THUNDERSTORM TO DEVELOP THIS AFTERNOON, HOWEVER THIS LOOKS TO BE
ISOLATED IF IT WERE TO DEVELOP. A SOUTH-SOUTHWEST WIND WILL SHIFT
TO THE WEST AND NORTHWEST DURING THE COURSE OF THE DAY, HOWEVER
SPEEDS ARE EXPECTED TO BE AROUND 5 KNOTS.

TONIGHT...VFR CEILINGS OVERALL. THERE IS THE POTENTIAL FOR MVFR
VISIBILITIES AT TIMES WITH SOME SHOWERS. A MORE ORGANIZED AREA OF
RAIN SHOULD DEVELOP ESPECIALLY LATE, WHERE SOME MVFR CEILINGS
SHOULD START TO DEVELOP. LOWER CONFIDENCE ON THE MVFR CEILINGS. THE
WINDS ARE ANTICIPATED TO BECOME NORTH TO NORTHEAST NEAR 5 KNOTS,
BUT INCREASE SOME TOWARD DAYBREAK.

OUTLOOK...
WEDNESDAY THROUGH THURSDAY...CONDITIONS VARYING BETWEEN VFR CIGS AND
MVFR CONDITIONS IN PERIODS OF SHOWERY RAINS. POTENTIAL BRIEF IFR
CONDITIONS KABE...KTTN AND KACY. NORTH NORTHWEST WIND GUSTS 20 KT
WEDNESDAY AND 25 TO 30 KT THURSDAY. CONFIDENCE: ABOVE AVERAGE.

THURSDAY NIGHT AND FRIDAY...MAINLY VFR CIGS WITH A CHANCE OF SHOWERS.
NORTHWEST WIND GUSTS 20-25 KT.  CONFIDENCE: ABOVE AVERAGE.

SATURDAY...VFR SCT-BKN AOA 5000 FT.  NORTHWEST WIND GUSTS 15 TO 20 KT.
CONFIDENCE: ABOVE AVERAGE.

&&

.MARINE...
TODAY AND TONIGHT...LOW PRESSURE DEVELOPING OVERHEAD WILL START TO
CONSOLIDATE SOME OFFSHORE TONIGHT. THIS WILL RESULT A SOUTHWESTERLY
WIND TURNING TO THE WEST AND NORTHWEST TODAY THEN NORTH-NORTHEAST
DURING TONIGHT. GIVEN THE NEARBY LOCATION OF THE ORGANIZING SURFACE
LOW, THE FLOW IS FORECAST TO BE ON THE LIGHTER SIDE. AFTER SOME
SURGE IN THE SEAS OFFSHORE EARLIER, THE SEAS ARE EXPECTED TO BE
BELOW ADVISORY CRITERIA THROUGH TONIGHT. THE NORTHERLY WINDS MAY
START TO INCREASE THOUGH TOWARD DAYBREAK WEDNESDAY.

OUTLOOK...
MIDWEEK...A GALE WATCH WAS ISSUED FOR MOST OF OUR WATERS...FOR
OCNL GUSTS AROUND 35 KT WEDNESDAY AFTN POSSIBLY INTO MIDDAY
THURSDAY. ONLY THE UPPER PART OF DELAWARE BAY IS WITHOUT A GALE
WATCH AND THERE WE ISSUED AN SCA.

FUTURE FORECASTS WILL DETERMINE WHETHER THE GALE WATCH IS A BIT
TOO ROBUST AND WE`LL NEED TO SETTLE FOR A STRONG SCA. FOR NOW...BE
PREPARED FOR THE POSSIBILITY OF GALES. AT THIS TIME...AM 60 PERCENT
CONFIDENT THAT AT LEAST THE S NJ AND DE COASTAL WATERS WILL VERIFY
A GALE BY THURSDAY. CONFIDENCE: A BIT ABOVE AVERAGE.


THURSDAY NIGHT THROUGH FRIDAY NIGHT...NORTHWESTERLY WIND GUSTS OF
25 TO 30 KNOTS AT TIMES. SCA LIKELY. CONFIDENCE: ABOVE AVERAGE

SATURDAY...NO MARINE HEADLINES ARE ANTICIPATED. NORTHWEST WIND GUSTS
15-20 KT. CONFIDENCE: ABOVE AVERAGE.

&&

.PHI WATCHES/WARNINGS/ADVISORIES...
PA...NONE.
NJ...NONE.
DE...NONE.
MD...NONE.
MARINE...GALE WATCH FROM WEDNESDAY AFTERNOON THROUGH LATE WEDNESDAY
     NIGHT FOR ANZ431-450>455.
     SMALL CRAFT ADVISORY FROM NOON WEDNESDAY TO 6 AM EDT THURSDAY
     FOR ANZ430.

&&

$$
SYNOPSIS...DRAG
NEAR TERM...GORSE
SHORT TERM...GORSE
LONG TERM...DRAG
AVIATION...DRAG/GORSE
MARINE...DRAG/GORSE





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