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000
FXUS66 KEKA 042318
AFDEKA

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE EUREKA CA
318 PM PST WED MAR 4 2015

.SYNOPSIS...HIGH PRESSURE WILL BUILD OVER NORTHWEST CALIFORNIA
THIS WEEK BRINGING DRY CONDITIONS AND A GRADUAL WARMUP THROUGH
THIS COMING WEEKEND. OVERNIGHT LOW TEMPERATURES WILL REMAIN COOL
WITH FROST DEVELOPING IN SOME AREAS OF NORTHWEST CALIFORNIA
THROUGH LATE WEEK.

&&

.DISCUSSION...HIGH PRESSURE CONTINUES TO BUILD OVER THE WEST COAST
BRINGING DRY CONDITIONS AND MOSTLY CLEAR SKIES. THE AIR ALOFT WILL
WARM TONIGHT...HOWEVER WITH CLEAR SKIES AND LIGHT WINDS EXPECT
TEMPERATURES TO FALL INTO THE FROST ADVISORY RANGE OF 33-36F AGAIN
LATE TONIGHT/EARLY THU MORNING IN THE INTERIOR. THUS WE ISSUED A
FROST ADVISORY FOR INTERIOR MENDOCINO COUNTY WHERE THERE MAY BE
IMPACTS. THE COASTAL VALLEYS IN ZONES 1 AND 2 MAY ALSO EXPERIENCE
SOME PATCHES OF FROST TOWARD EARLY THU MORNING. HOWEVER THE
COVERAGE SHOULD BE MUCH LESS COMPARED TO THIS MORNING DUE TO THE
WARMING ALOFT AND LIGHT EASTERLY FLOW THROUGH THE NIGHT. OVERNIGHT
TEMPERATURES WILL SLOWLY MODERATE THROUGH THE REST OF THE WEEK AS
THE RIDGE ALOFT BUILDS AND 925-850MB TEMPERATURES INCREASE EACH
NIGHT. ANOTHER FROST ADVISORY MAY BE NECESSARY IN THE INTERIOR OF
MENDOCINO COUNTY TOMORROW NIGHT THOUGH.

THE BUILDING RIDGE WILL BRING SEVERAL DEGREES OF WARMING THIS
WEEKEND ACROSS THE INTERIOR...AS MUCH AS 10-20F ABOVE NORMAL
FOR EARLY MARCH. MAX TEMPS IN THE INTERIOR WILL LIKELY TOP OUT IN
THE MID TO UPPER 70S THIS WEEKEND. MODEL GUIDANCE INDICATES LIGHT
NORTH FLOW DEVELOPING AND THE POTENTIAL FOR COASTAL STRATUS
GENERATION THIS WEEKEND. THUS THE COAST WILL PROBABLY NOT SEE A
SIGNIFICANT WARM UP THIS WEEKEND.

BOTH THE GFS AND ECMWF MODELS INDICATE A RETURN TO COOLER AND
WETTER CONDITIONS EARLY TO MID NEXT WEEK. PRECIP CHANCES HAVE
BEEN ADDED TO THE FORECAST TUE INTO WED. THE MODELS WERE STILL NOT
IN VERY GOOD SYNC WITH THE TIMING. THE GFS WAS FASTER WHILE THE
ECMWF SLOWER. FAVORED THE SLOWER TIMING HERE...WITH THE BULK OF
PRECIP ARRIVING AROUND MID WEEK AS AN UPPER TROUGH APPROACHES THE
NORCAL COAST.

&&

.AVIATION....A RIDGE BUILDING OVER THE WEST COAST WILL ALLOW VFR TO
PREVAIL ACROSS MOST OF NORTHWEST CALIFORNIA THIS EVENING AND
OVERNIGHT. LOCAL IFR IS POSSIBLE DUE TO STRATUS/FOG DEVELOPMENT LATE
TONIGHT IN SOME OF THE INLAND VALLEYS.

&&

.MARINE...THE AFTERNOON BUOY OBSERVATIONS ARE REPORTING SEAS AROUND
5-6 FT. THE 1950Z ASCAT PASS JUST MISSED OUR WATERS, BUT THIS ISN`T
AN ISSUE CONSIDERING WINDS ARE EASING. A RIDGE IS CURRENTLY BUILDING
OVER THE WEST COAST. THIS IS CAUSING THE SURFACE PRESSURE GRADIENT
TO WEAKEN, ALLOWING WINDS TO EASE. ALLOWED THE SC.Y`S TO EXPIRE DUE
TO THIS. OTHERWISE, THE MODELS ARE IN EXCELLENT AGREEMENT SHOWING
THE RIDGE REMAINING IN PLACE THROUGH EARLY NEXT WEEK, LEADING TO
A LIGHT TO MODERATE BREEZE AND WAVE HEIGHTS UNDER 8 FT.

&&

.EKA WATCHES/WARNINGS/ADVISORIES...
CA...FROST ADVISORY FROM 2 AM TO 8 AM PST THURSDAY FOR
CAZ002-076.

NORTHWEST CALIFORNIA COASTAL WATERS...NONE.

&&

$$

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000
FXUS66 KEKA 042318
AFDEKA

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE EUREKA CA
318 PM PST WED MAR 4 2015

.SYNOPSIS...HIGH PRESSURE WILL BUILD OVER NORTHWEST CALIFORNIA
THIS WEEK BRINGING DRY CONDITIONS AND A GRADUAL WARMUP THROUGH
THIS COMING WEEKEND. OVERNIGHT LOW TEMPERATURES WILL REMAIN COOL
WITH FROST DEVELOPING IN SOME AREAS OF NORTHWEST CALIFORNIA
THROUGH LATE WEEK.

&&

.DISCUSSION...HIGH PRESSURE CONTINUES TO BUILD OVER THE WEST COAST
BRINGING DRY CONDITIONS AND MOSTLY CLEAR SKIES. THE AIR ALOFT WILL
WARM TONIGHT...HOWEVER WITH CLEAR SKIES AND LIGHT WINDS EXPECT
TEMPERATURES TO FALL INTO THE FROST ADVISORY RANGE OF 33-36F AGAIN
LATE TONIGHT/EARLY THU MORNING IN THE INTERIOR. THUS WE ISSUED A
FROST ADVISORY FOR INTERIOR MENDOCINO COUNTY WHERE THERE MAY BE
IMPACTS. THE COASTAL VALLEYS IN ZONES 1 AND 2 MAY ALSO EXPERIENCE
SOME PATCHES OF FROST TOWARD EARLY THU MORNING. HOWEVER THE
COVERAGE SHOULD BE MUCH LESS COMPARED TO THIS MORNING DUE TO THE
WARMING ALOFT AND LIGHT EASTERLY FLOW THROUGH THE NIGHT. OVERNIGHT
TEMPERATURES WILL SLOWLY MODERATE THROUGH THE REST OF THE WEEK AS
THE RIDGE ALOFT BUILDS AND 925-850MB TEMPERATURES INCREASE EACH
NIGHT. ANOTHER FROST ADVISORY MAY BE NECESSARY IN THE INTERIOR OF
MENDOCINO COUNTY TOMORROW NIGHT THOUGH.

THE BUILDING RIDGE WILL BRING SEVERAL DEGREES OF WARMING THIS
WEEKEND ACROSS THE INTERIOR...AS MUCH AS 10-20F ABOVE NORMAL
FOR EARLY MARCH. MAX TEMPS IN THE INTERIOR WILL LIKELY TOP OUT IN
THE MID TO UPPER 70S THIS WEEKEND. MODEL GUIDANCE INDICATES LIGHT
NORTH FLOW DEVELOPING AND THE POTENTIAL FOR COASTAL STRATUS
GENERATION THIS WEEKEND. THUS THE COAST WILL PROBABLY NOT SEE A
SIGNIFICANT WARM UP THIS WEEKEND.

BOTH THE GFS AND ECMWF MODELS INDICATE A RETURN TO COOLER AND
WETTER CONDITIONS EARLY TO MID NEXT WEEK. PRECIP CHANCES HAVE
BEEN ADDED TO THE FORECAST TUE INTO WED. THE MODELS WERE STILL NOT
IN VERY GOOD SYNC WITH THE TIMING. THE GFS WAS FASTER WHILE THE
ECMWF SLOWER. FAVORED THE SLOWER TIMING HERE...WITH THE BULK OF
PRECIP ARRIVING AROUND MID WEEK AS AN UPPER TROUGH APPROACHES THE
NORCAL COAST.

&&

.AVIATION....A RIDGE BUILDING OVER THE WEST COAST WILL ALLOW VFR TO
PREVAIL ACROSS MOST OF NORTHWEST CALIFORNIA THIS EVENING AND
OVERNIGHT. LOCAL IFR IS POSSIBLE DUE TO STRATUS/FOG DEVELOPMENT LATE
TONIGHT IN SOME OF THE INLAND VALLEYS.

&&

.MARINE...THE AFTERNOON BUOY OBSERVATIONS ARE REPORTING SEAS AROUND
5-6 FT. THE 1950Z ASCAT PASS JUST MISSED OUR WATERS, BUT THIS ISN`T
AN ISSUE CONSIDERING WINDS ARE EASING. A RIDGE IS CURRENTLY BUILDING
OVER THE WEST COAST. THIS IS CAUSING THE SURFACE PRESSURE GRADIENT
TO WEAKEN, ALLOWING WINDS TO EASE. ALLOWED THE SC.Y`S TO EXPIRE DUE
TO THIS. OTHERWISE, THE MODELS ARE IN EXCELLENT AGREEMENT SHOWING
THE RIDGE REMAINING IN PLACE THROUGH EARLY NEXT WEEK, LEADING TO
A LIGHT TO MODERATE BREEZE AND WAVE HEIGHTS UNDER 8 FT.

&&

.EKA WATCHES/WARNINGS/ADVISORIES...
CA...FROST ADVISORY FROM 2 AM TO 8 AM PST THURSDAY FOR
CAZ002-076.

NORTHWEST CALIFORNIA COASTAL WATERS...NONE.

&&

$$

VISIT US AT HTTP://WWW.WEATHER.GOV/EUREKA

FOLLOW US ON FACEBOOK AND TWITTER AT:
HTTP://WWW.FACEBOOK.COM/NWSEUREKA
HTTP://WWW.TWITTER.COM/NWSEUREKA




000
FXUS66 KEKA 041218
AFDEKA

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE EUREKA CA
418 AM PST WED MAR 4 2015

.SYNOPSIS...HIGH PRESSURE WILL BUILD OVER NORTHWEST CALIFORNIA
THIS WEEK BRINGING DRY CONDITIONS AND A GRADUAL WARMUP THROUGH
THIS COMING WEEKEND. HOWEVER OVERNIGHT LOW TEMPERATURES WILL
REMAIN COOL WITH FROST DEVELOPING IN SOME AREAS OF NORTHWEST
CALIFORNIA THROUGH LATE WEEK.


&&

.DISCUSSION...HIGH PRESSURE CONTINUES TO BUILD OVER THE WEST COAST
BRINGING DRY CONDITIONS AND MOSTLY CLEAR SKIES. CLEARER SKIES THAN
LAST NIGHT HAVE ALLOWED TEMPERATURES TO FALL MORE READILY TONIGHT AS
WAS ANTICIPATED. THUS THE FROST ADVISORIES AND FREEZE WARNINGS
REMAIN ON TRACK. A COUPLE MORE COOL NIGHTS ARE ANTICIPATED WITH
STRONG LOW LEVEL INVERSIONS LIKELY TO DEVELOP BENEATH THE
BUILDING RIDGE OF HIGH PRESSURE. TEMPERATURES WILL SLOWLY MODERATE
BUT WILL STILL FALL INTO THE LOWER TO MID 30S ACROSS THE INTERIOR
VALLEYS OF MENDOCINO COUNTY. THUS ADDITIONAL FROST/FREEZE
HEADLINES WILL BE LIKELY FOR THE INTERIOR MENDOCINO COUNTY ZONE
TONIGHT AND POSSIBLY THURSDAY NIGHT. NEAR THE COAST TEMPERATURES
SHOULD MODERATE ENOUGH THAT FROST ADVISORIES WILL NOT BE REQUIRED
BUT STILL SOME PATCHY FROST WILL BE POSSIBLE IN PROTECTED VALLEY
LOCATIONS OF THE REDWOOD COAST AND MENDOCINO COAST ZONES TONIGHT.
THE DAY SHIFT WILL TAKE ANOTHER CLOSE LOOK AT THE LOW TEMPERATURES
FOR TONIGHT NEAR THE COAST TO DETERMINE IF TEMPERATURES NEED TO BE
LOWERED AND HEADLINES ISSUED.

WITH THE RIDGE BUILDING OVER THE REGION...THICKNESS VALUES WILL
INCREASE AND 850 MB TEMPERATURES WILL WARM TO OVER 10C BY THIS
WEEKEND. THIS SHOULD ALLOW FOR DECENT WARMING DURING THE AFTERNOON
HOURS...ESPECIALLY ACROSS THE INTERIOR WHERE MENDOCINO COUNTY VALLEY
LOCATIONS MAY TOP OUT IN THE MIDDLE TO UPPER 70S F THIS WEEKEND.
MODEL GUIDANCE INDICATES THAT THE THERMAL TROUGH WILL NEVER MAKE A
REAL PUSH OFF THE COAST ALLOWING COASTAL AREAS TO WARM
...HOWEVER SOME SOUTHERLY DOWNSLOPE FLOW ON THURSDAY MAY ALLOW
THE HUMBOLDT BAY AREA TO WARM ABOVE GUIDANCE INTO THE MID 60S
BEFORE THE MARINE LAYER RETURNS BRINGING THE POTENTIAL FOR SOME
LOW CLOUDS ON AND OFF INTO THE WEEKEND.

BOTH THE GFS AND ECMWF MODELS INDICATE A RETURN TO COOLER AND WETTER
CONDITIONS IS IN STORE FOR THE 7-10 DAY PERIOD. IN FACT...LIKELY
CHANCES FOR PRECIPITATION HAVE BEEN INTRODUCED TO THE FORECAST FOR
NEXT THURSDAY. HOWEVER IT APPEARS THAT MOISTURE WILL BE LIMITED
RESTRICTING RAINFALL TOTALS. /RPA



&&

.AVIATION...OTHER THAN SOME VERY LOCALIZED EARLY MORNING INTERIOR
VALLEY FOG...ALL AREAS INCLUDING THE COAST SHOULD REMAIN VFR THROUGH
THE NEXT TAF CYCLE. /KML


&&

.MARINE...WINDS WILL CONTINUE TO EASE WITH THE WEAKENING PRESSURE
GRADIENT AND RESPONDING SEAS WILL GRADUALLY SUBSIDE THROUGH THE DAY
TODAY. SMALL CRAFT ADVISORIES WILL PERSIST ACROSS THE OUTER WATERS
AS STEEP SEAS WILL BE A LITTLE SLOWER TO SUBSIDE. LIGHT TO MODERATE
WINDS WILL BECOME SOUTHERLY ON THURSDAY AS A RIDGE OF HIGH PRESSURE
CURRENTLY OVER THE EASTERN PACIFIC OCEAN SHIFTS OVER THE PACIFIC
NORTHWEST. THEN NORTHERLY FLOW WILL RETURN ON FRIDAY AS A THERMAL
TROUGH SETS UP ALONG THE CALIFORNIA COAST. WINDS WILL INCREASE
SLIGHTLY OVER THE WEEKEND AS THE THERMAL TROUGH INTERACTS WITH THE
SHIFTING RIDGE YET NO ADVISORIES ARE ANTICIPATED AT THIS POINT IN
TIME SINCE CONDITIONS LOOK MARGINAL AT BEST. SEAS WILL BE RELATIVELY
LOW THROUGH THE WEEKEND AS COMPARED TO THE PAST FEW DAYS. SHORT
PERIOD SEAS WILL DEVELOP WITH THE INCREASING WEEKEND WINDS WHILE TWO
OPPOSING SWELL SYSTEMS, ONE FROM THE NW AND THE OTHER OUT OF THE S,
WILL PROPAGATE THE WATERS THROUGH EARLY NEXT WEEK. /KML


&&

.EKA WATCHES/WARNINGS/ADVISORIES...
CA...
     FROST ADVISORY UNTIL 7 AM PST THIS MORNING FOR CAZ001-002.

     FREEZE WARNING UNTIL 8 AM PST THIS MORNING FOR CAZ076.

NORTHWEST CALIFORNIA COASTAL WATERS...
     SMALL CRAFT ADVISORY UNTIL 9 AM PST THIS MORNING FOR PZZ450-455.

     SMALL CRAFT ADVISORY UNTIL 9 PM PST THIS EVENING FOR PZZ470.

     SMALL CRAFT ADVISORY UNTIL 3 PM PST THIS AFTERNOON FOR PZZ475.

&&

$$

VISIT US AT HTTP://WWW.WEATHER.GOV/EUREKA

FOLLOW US ON FACEBOOK AND TWITTER AT:
HTTP://WWW.FACEBOOK.COM/NWSEUREKA
HTTP://WWW.TWITTER.COM/NWSEUREKA




000
FXUS66 KEKA 041218
AFDEKA

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE EUREKA CA
418 AM PST WED MAR 4 2015

.SYNOPSIS...HIGH PRESSURE WILL BUILD OVER NORTHWEST CALIFORNIA
THIS WEEK BRINGING DRY CONDITIONS AND A GRADUAL WARMUP THROUGH
THIS COMING WEEKEND. HOWEVER OVERNIGHT LOW TEMPERATURES WILL
REMAIN COOL WITH FROST DEVELOPING IN SOME AREAS OF NORTHWEST
CALIFORNIA THROUGH LATE WEEK.


&&

.DISCUSSION...HIGH PRESSURE CONTINUES TO BUILD OVER THE WEST COAST
BRINGING DRY CONDITIONS AND MOSTLY CLEAR SKIES. CLEARER SKIES THAN
LAST NIGHT HAVE ALLOWED TEMPERATURES TO FALL MORE READILY TONIGHT AS
WAS ANTICIPATED. THUS THE FROST ADVISORIES AND FREEZE WARNINGS
REMAIN ON TRACK. A COUPLE MORE COOL NIGHTS ARE ANTICIPATED WITH
STRONG LOW LEVEL INVERSIONS LIKELY TO DEVELOP BENEATH THE
BUILDING RIDGE OF HIGH PRESSURE. TEMPERATURES WILL SLOWLY MODERATE
BUT WILL STILL FALL INTO THE LOWER TO MID 30S ACROSS THE INTERIOR
VALLEYS OF MENDOCINO COUNTY. THUS ADDITIONAL FROST/FREEZE
HEADLINES WILL BE LIKELY FOR THE INTERIOR MENDOCINO COUNTY ZONE
TONIGHT AND POSSIBLY THURSDAY NIGHT. NEAR THE COAST TEMPERATURES
SHOULD MODERATE ENOUGH THAT FROST ADVISORIES WILL NOT BE REQUIRED
BUT STILL SOME PATCHY FROST WILL BE POSSIBLE IN PROTECTED VALLEY
LOCATIONS OF THE REDWOOD COAST AND MENDOCINO COAST ZONES TONIGHT.
THE DAY SHIFT WILL TAKE ANOTHER CLOSE LOOK AT THE LOW TEMPERATURES
FOR TONIGHT NEAR THE COAST TO DETERMINE IF TEMPERATURES NEED TO BE
LOWERED AND HEADLINES ISSUED.

WITH THE RIDGE BUILDING OVER THE REGION...THICKNESS VALUES WILL
INCREASE AND 850 MB TEMPERATURES WILL WARM TO OVER 10C BY THIS
WEEKEND. THIS SHOULD ALLOW FOR DECENT WARMING DURING THE AFTERNOON
HOURS...ESPECIALLY ACROSS THE INTERIOR WHERE MENDOCINO COUNTY VALLEY
LOCATIONS MAY TOP OUT IN THE MIDDLE TO UPPER 70S F THIS WEEKEND.
MODEL GUIDANCE INDICATES THAT THE THERMAL TROUGH WILL NEVER MAKE A
REAL PUSH OFF THE COAST ALLOWING COASTAL AREAS TO WARM
...HOWEVER SOME SOUTHERLY DOWNSLOPE FLOW ON THURSDAY MAY ALLOW
THE HUMBOLDT BAY AREA TO WARM ABOVE GUIDANCE INTO THE MID 60S
BEFORE THE MARINE LAYER RETURNS BRINGING THE POTENTIAL FOR SOME
LOW CLOUDS ON AND OFF INTO THE WEEKEND.

BOTH THE GFS AND ECMWF MODELS INDICATE A RETURN TO COOLER AND WETTER
CONDITIONS IS IN STORE FOR THE 7-10 DAY PERIOD. IN FACT...LIKELY
CHANCES FOR PRECIPITATION HAVE BEEN INTRODUCED TO THE FORECAST FOR
NEXT THURSDAY. HOWEVER IT APPEARS THAT MOISTURE WILL BE LIMITED
RESTRICTING RAINFALL TOTALS. /RPA



&&

.AVIATION...OTHER THAN SOME VERY LOCALIZED EARLY MORNING INTERIOR
VALLEY FOG...ALL AREAS INCLUDING THE COAST SHOULD REMAIN VFR THROUGH
THE NEXT TAF CYCLE. /KML


&&

.MARINE...WINDS WILL CONTINUE TO EASE WITH THE WEAKENING PRESSURE
GRADIENT AND RESPONDING SEAS WILL GRADUALLY SUBSIDE THROUGH THE DAY
TODAY. SMALL CRAFT ADVISORIES WILL PERSIST ACROSS THE OUTER WATERS
AS STEEP SEAS WILL BE A LITTLE SLOWER TO SUBSIDE. LIGHT TO MODERATE
WINDS WILL BECOME SOUTHERLY ON THURSDAY AS A RIDGE OF HIGH PRESSURE
CURRENTLY OVER THE EASTERN PACIFIC OCEAN SHIFTS OVER THE PACIFIC
NORTHWEST. THEN NORTHERLY FLOW WILL RETURN ON FRIDAY AS A THERMAL
TROUGH SETS UP ALONG THE CALIFORNIA COAST. WINDS WILL INCREASE
SLIGHTLY OVER THE WEEKEND AS THE THERMAL TROUGH INTERACTS WITH THE
SHIFTING RIDGE YET NO ADVISORIES ARE ANTICIPATED AT THIS POINT IN
TIME SINCE CONDITIONS LOOK MARGINAL AT BEST. SEAS WILL BE RELATIVELY
LOW THROUGH THE WEEKEND AS COMPARED TO THE PAST FEW DAYS. SHORT
PERIOD SEAS WILL DEVELOP WITH THE INCREASING WEEKEND WINDS WHILE TWO
OPPOSING SWELL SYSTEMS, ONE FROM THE NW AND THE OTHER OUT OF THE S,
WILL PROPAGATE THE WATERS THROUGH EARLY NEXT WEEK. /KML


&&

.EKA WATCHES/WARNINGS/ADVISORIES...
CA...
     FROST ADVISORY UNTIL 7 AM PST THIS MORNING FOR CAZ001-002.

     FREEZE WARNING UNTIL 8 AM PST THIS MORNING FOR CAZ076.

NORTHWEST CALIFORNIA COASTAL WATERS...
     SMALL CRAFT ADVISORY UNTIL 9 AM PST THIS MORNING FOR PZZ450-455.

     SMALL CRAFT ADVISORY UNTIL 9 PM PST THIS EVENING FOR PZZ470.

     SMALL CRAFT ADVISORY UNTIL 3 PM PST THIS AFTERNOON FOR PZZ475.

&&

$$

VISIT US AT HTTP://WWW.WEATHER.GOV/EUREKA

FOLLOW US ON FACEBOOK AND TWITTER AT:
HTTP://WWW.FACEBOOK.COM/NWSEUREKA
HTTP://WWW.TWITTER.COM/NWSEUREKA





000
FXUS66 KEKA 032238
AFDEKA

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE EUREKA CA
238 PM PST TUE MAR 3 2015

.SYNOPSIS...HIGH PRESSURE WILL BUILD OVER NORTHWEST CALIFORNIA
THIS WEEK BRINGING DRY CONDITIONS AND A GRADUAL WARMUP THROUGH
THIS COMING WEEKEND. LOW TEMPERATURES FOR THE NEXT COUPLE OF
NIGHTS WILL FALL INTO THE 30S IN SEVERAL AREAS ALLOWING FOR SOME
FROST TO DEVELOP.

&&

.DISCUSSION...DRY NORTH AND NORTHEASTERLY FLOW CONTINUES ACROSS
THE REGION. EXPECTING A MASS OF EVEN DRIER AIR TO ALSO MOVE IN
FROM THE EAST TONIGHT THUS DEWPOINTS SHOULD CONTINUE TO DECREASE
TONIGHT ALLOWING FOR BETTER RADIATIONAL COOLING. THUS...FROST
ADVISORIES HAVE BEEN ISSUED FOR COASTAL AREAS AND A FREEZE WARNING
IS NOW IN EFFECT FOR THE INTERIOR VALLEYS OF MENDOCINO CO. ALL
MODEL GUIDANCE INDICATES THAT A RIDGE OF HIGH PRESSURE WILL
CONTINUE TO BUILD OVER THE WEST COAST INTO THIS WEEKEND BRINGING
WARMER TEMPERATURES AND DRY CONDITIONS. AFTERNOON HIGH
TEMPERATURES WILL CLIMB INTO THE 70S IN MENDOCINO COUNTY BY LATE
WEEK AND POSSIBLY REACH INTO THE UPPER 70S OVER THE WEEKEND.
ELSEWHERE HIGH TEMPERATURES WILL REMAIN PRIMARILY IN THE 60S WITH
A FEW UPPER 50S ALONG THE IMMEDIATE COAST. HIGH RESOLUTION MODEL
GUIDANCE INDICATES THAT STRATUS MAY REDEVELOP OFF THE COAST
THURSDAY INTO FRIDAY BRINGING THE POTENTIAL FOR LOW CLOUDS AND FOG
FOR COASTAL AREAS. CLOUD COVER HAS BEEN INCREASED WITH THIS UPDATE
THURSDAY THROUGH FRIDAY MORNING ACROSS COASTAL LOCATIONS. THERE IS
SOME HINT OF LIGHT OFFSHORE FLOW WHICH WILL LIKELY KEEP THE
STRATUS FROM PENETRATING TOO FAR UP COASTAL VALLEYS. LONG TERM
MODELS ARE NOW IN BETTER AGREEMENT ON BRINGING BACK A COOLER AND WETTER
PATTERN TO THE REGION BEGINNING WEDNESDAY OF NEXT WEEK. /RPA/JT



&&

.AVIATION...OTHER THAN SOME VERY LOCALIZED EARLY MORNING INTERIOR VALLEY
FOG...ALL AREAS INCLUDING THE COAST SHOULD REMAIN VFR THROUGH THE
NEXT TAF CYCLE.


&&

.MARINE...WHILE WINDS HAVE DIMINISHED SLIGHTLY COMPARED TO
YESTERDAY...ESPECIALLY ACROSS THE INNER WATERS...STEEP SHORT PERIOD
SEAS HAVE HOVERED AT 8 TO 10 FEET AT 8 TO 9 SECONDS AT OFFSHORE
BUOYS THIS AFTERNOON.  WHILE THE TREND HAS BEEN GRADUALLY DOWNWARD
TO THIS POINT...SATELLITE IMAGERY CONFIRMS THAT A SUBTLE SHORTWAVE
IS IN THE PROCESS OF MOVING ACROSS THE REGION NOW.  MODEL GUIDANCE
HAS PERSISTENTLY INDICATED THAT THIS WAVE WILL HELP TO TIGHTEN THE
PRESSURE GRADIENT SLIGHTLY AS IT PASSES...WHICH SHOULD BOOST WIND
SPEEDS UP A NOTCH THIS EVENING AND OVERNIGHT.  WHILE WIDESPREAD
GALES ARE NOT EXPECTED...SEAS ARE EXPECTED TO RAMP UP DURING THIS
PERIOD...PARTICULARLY ACROSS THE OUTER WATERS.  WAVE MODEL
PREDICTIONS CONTINUE TO INDICATE SEAS BUIDLING TO 10 FEET AT 8
SECONDS ACROSS MUCH OF THE OUTER WATERS...AND AS A RESULT...A
HAZARDOUS SEAS WARNING WILL GO INTO EFFECT FOR THE OUTER WATERS AT 2
PM AND LAST UNTIL 1 AM...IN ADDITION TO SMALL CRAFT ADVISORIES FOR
THE INNER WATERS FOR THE SAME TIME PERIOD.

ELEVATED SHORT PERIOD SEAS WILL LIKELY CONTINUE THROUGH WEDNESDAY
ACROSS THE OUTER WATERS...AS FRESH WINDS WILL PERSIST UNTIL LATE IN
THE DAY.  AS SUCH...SMALL CRAFT ADVISORIES WILL REMAIN IN EFFECT
FROM NOW UNTIL 3 PM TOMORROW IN THE SOUTHERN OUTER WATERS...AND
UNTIL 9 PM IN THE NORTHERN OUTER WATERS.  BEYOND TOMORROW...WINDS
WILL FINALLY DIMINISH TO BELOW SMALL CRAFT ADVISORY LEVELS AS THE
PRESSURE GRADIENT RELAXES.  A BUILDING WESTERLY SWELL WILL THEN
BECOME THE DOMINANT WAVE GROUP AS IT ENTERS THE WATERS SOMETIME LATE
WEDNESDAY.


&&

.EKA WATCHES/WARNINGS/ADVISORIES...
CA...
     FROST ADVISORY FROM 1 AM TO 7 AM PST WEDNESDAY FOR CAZ001-002.

     FREEZE WARNING FROM 1 AM TO 8 AM PST WEDNESDAY FOR CAZ076.

NORTHWEST CALIFORNIA COASTAL WATERS...
     SMALL CRAFT ADVISORY UNTIL 1 AM PST WEDNESDAY FOR PZZ450-455.

     SMALL CRAFT ADVISORY UNTIL 9 PM PST WEDNESDAY FOR PZZ470.

     HAZARDOUS SEAS WARNING UNTIL 1 AM PST WEDNESDAY FOR PZZ470-475.

     SMALL CRAFT ADVISORY UNTIL 3 PM PST WEDNESDAY FOR PZZ475.

&&

$$

VISIT US AT HTTP://WWW.WEATHER.GOV/EUREKA

FOLLOW US ON FACEBOOK AND TWITTER AT:
HTTP://WWW.FACEBOOK.COM/NWSEUREKA
HTTP://WWW.TWITTER.COM/NWSEUREKA




000
FXUS66 KEKA 032238
AFDEKA

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE EUREKA CA
238 PM PST TUE MAR 3 2015

.SYNOPSIS...HIGH PRESSURE WILL BUILD OVER NORTHWEST CALIFORNIA
THIS WEEK BRINGING DRY CONDITIONS AND A GRADUAL WARMUP THROUGH
THIS COMING WEEKEND. LOW TEMPERATURES FOR THE NEXT COUPLE OF
NIGHTS WILL FALL INTO THE 30S IN SEVERAL AREAS ALLOWING FOR SOME
FROST TO DEVELOP.

&&

.DISCUSSION...DRY NORTH AND NORTHEASTERLY FLOW CONTINUES ACROSS
THE REGION. EXPECTING A MASS OF EVEN DRIER AIR TO ALSO MOVE IN
FROM THE EAST TONIGHT THUS DEWPOINTS SHOULD CONTINUE TO DECREASE
TONIGHT ALLOWING FOR BETTER RADIATIONAL COOLING. THUS...FROST
ADVISORIES HAVE BEEN ISSUED FOR COASTAL AREAS AND A FREEZE WARNING
IS NOW IN EFFECT FOR THE INTERIOR VALLEYS OF MENDOCINO CO. ALL
MODEL GUIDANCE INDICATES THAT A RIDGE OF HIGH PRESSURE WILL
CONTINUE TO BUILD OVER THE WEST COAST INTO THIS WEEKEND BRINGING
WARMER TEMPERATURES AND DRY CONDITIONS. AFTERNOON HIGH
TEMPERATURES WILL CLIMB INTO THE 70S IN MENDOCINO COUNTY BY LATE
WEEK AND POSSIBLY REACH INTO THE UPPER 70S OVER THE WEEKEND.
ELSEWHERE HIGH TEMPERATURES WILL REMAIN PRIMARILY IN THE 60S WITH
A FEW UPPER 50S ALONG THE IMMEDIATE COAST. HIGH RESOLUTION MODEL
GUIDANCE INDICATES THAT STRATUS MAY REDEVELOP OFF THE COAST
THURSDAY INTO FRIDAY BRINGING THE POTENTIAL FOR LOW CLOUDS AND FOG
FOR COASTAL AREAS. CLOUD COVER HAS BEEN INCREASED WITH THIS UPDATE
THURSDAY THROUGH FRIDAY MORNING ACROSS COASTAL LOCATIONS. THERE IS
SOME HINT OF LIGHT OFFSHORE FLOW WHICH WILL LIKELY KEEP THE
STRATUS FROM PENETRATING TOO FAR UP COASTAL VALLEYS. LONG TERM
MODELS ARE NOW IN BETTER AGREEMENT ON BRINGING BACK A COOLER AND WETTER
PATTERN TO THE REGION BEGINNING WEDNESDAY OF NEXT WEEK. /RPA/JT



&&

.AVIATION...OTHER THAN SOME VERY LOCALIZED EARLY MORNING INTERIOR VALLEY
FOG...ALL AREAS INCLUDING THE COAST SHOULD REMAIN VFR THROUGH THE
NEXT TAF CYCLE.


&&

.MARINE...WHILE WINDS HAVE DIMINISHED SLIGHTLY COMPARED TO
YESTERDAY...ESPECIALLY ACROSS THE INNER WATERS...STEEP SHORT PERIOD
SEAS HAVE HOVERED AT 8 TO 10 FEET AT 8 TO 9 SECONDS AT OFFSHORE
BUOYS THIS AFTERNOON.  WHILE THE TREND HAS BEEN GRADUALLY DOWNWARD
TO THIS POINT...SATELLITE IMAGERY CONFIRMS THAT A SUBTLE SHORTWAVE
IS IN THE PROCESS OF MOVING ACROSS THE REGION NOW.  MODEL GUIDANCE
HAS PERSISTENTLY INDICATED THAT THIS WAVE WILL HELP TO TIGHTEN THE
PRESSURE GRADIENT SLIGHTLY AS IT PASSES...WHICH SHOULD BOOST WIND
SPEEDS UP A NOTCH THIS EVENING AND OVERNIGHT.  WHILE WIDESPREAD
GALES ARE NOT EXPECTED...SEAS ARE EXPECTED TO RAMP UP DURING THIS
PERIOD...PARTICULARLY ACROSS THE OUTER WATERS.  WAVE MODEL
PREDICTIONS CONTINUE TO INDICATE SEAS BUIDLING TO 10 FEET AT 8
SECONDS ACROSS MUCH OF THE OUTER WATERS...AND AS A RESULT...A
HAZARDOUS SEAS WARNING WILL GO INTO EFFECT FOR THE OUTER WATERS AT 2
PM AND LAST UNTIL 1 AM...IN ADDITION TO SMALL CRAFT ADVISORIES FOR
THE INNER WATERS FOR THE SAME TIME PERIOD.

ELEVATED SHORT PERIOD SEAS WILL LIKELY CONTINUE THROUGH WEDNESDAY
ACROSS THE OUTER WATERS...AS FRESH WINDS WILL PERSIST UNTIL LATE IN
THE DAY.  AS SUCH...SMALL CRAFT ADVISORIES WILL REMAIN IN EFFECT
FROM NOW UNTIL 3 PM TOMORROW IN THE SOUTHERN OUTER WATERS...AND
UNTIL 9 PM IN THE NORTHERN OUTER WATERS.  BEYOND TOMORROW...WINDS
WILL FINALLY DIMINISH TO BELOW SMALL CRAFT ADVISORY LEVELS AS THE
PRESSURE GRADIENT RELAXES.  A BUILDING WESTERLY SWELL WILL THEN
BECOME THE DOMINANT WAVE GROUP AS IT ENTERS THE WATERS SOMETIME LATE
WEDNESDAY.


&&

.EKA WATCHES/WARNINGS/ADVISORIES...
CA...
     FROST ADVISORY FROM 1 AM TO 7 AM PST WEDNESDAY FOR CAZ001-002.

     FREEZE WARNING FROM 1 AM TO 8 AM PST WEDNESDAY FOR CAZ076.

NORTHWEST CALIFORNIA COASTAL WATERS...
     SMALL CRAFT ADVISORY UNTIL 1 AM PST WEDNESDAY FOR PZZ450-455.

     SMALL CRAFT ADVISORY UNTIL 9 PM PST WEDNESDAY FOR PZZ470.

     HAZARDOUS SEAS WARNING UNTIL 1 AM PST WEDNESDAY FOR PZZ470-475.

     SMALL CRAFT ADVISORY UNTIL 3 PM PST WEDNESDAY FOR PZZ475.

&&

$$

VISIT US AT HTTP://WWW.WEATHER.GOV/EUREKA

FOLLOW US ON FACEBOOK AND TWITTER AT:
HTTP://WWW.FACEBOOK.COM/NWSEUREKA
HTTP://WWW.TWITTER.COM/NWSEUREKA





000
FXUS66 KEKA 032238
AFDEKA

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE EUREKA CA
238 PM PST TUE MAR 3 2015

.SYNOPSIS...HIGH PRESSURE WILL BUILD OVER NORTHWEST CALIFORNIA
THIS WEEK BRINGING DRY CONDITIONS AND A GRADUAL WARMUP THROUGH
THIS COMING WEEKEND. LOW TEMPERATURES FOR THE NEXT COUPLE OF
NIGHTS WILL FALL INTO THE 30S IN SEVERAL AREAS ALLOWING FOR SOME
FROST TO DEVELOP.

&&

.DISCUSSION...DRY NORTH AND NORTHEASTERLY FLOW CONTINUES ACROSS
THE REGION. EXPECTING A MASS OF EVEN DRIER AIR TO ALSO MOVE IN
FROM THE EAST TONIGHT THUS DEWPOINTS SHOULD CONTINUE TO DECREASE
TONIGHT ALLOWING FOR BETTER RADIATIONAL COOLING. THUS...FROST
ADVISORIES HAVE BEEN ISSUED FOR COASTAL AREAS AND A FREEZE WARNING
IS NOW IN EFFECT FOR THE INTERIOR VALLEYS OF MENDOCINO CO. ALL
MODEL GUIDANCE INDICATES THAT A RIDGE OF HIGH PRESSURE WILL
CONTINUE TO BUILD OVER THE WEST COAST INTO THIS WEEKEND BRINGING
WARMER TEMPERATURES AND DRY CONDITIONS. AFTERNOON HIGH
TEMPERATURES WILL CLIMB INTO THE 70S IN MENDOCINO COUNTY BY LATE
WEEK AND POSSIBLY REACH INTO THE UPPER 70S OVER THE WEEKEND.
ELSEWHERE HIGH TEMPERATURES WILL REMAIN PRIMARILY IN THE 60S WITH
A FEW UPPER 50S ALONG THE IMMEDIATE COAST. HIGH RESOLUTION MODEL
GUIDANCE INDICATES THAT STRATUS MAY REDEVELOP OFF THE COAST
THURSDAY INTO FRIDAY BRINGING THE POTENTIAL FOR LOW CLOUDS AND FOG
FOR COASTAL AREAS. CLOUD COVER HAS BEEN INCREASED WITH THIS UPDATE
THURSDAY THROUGH FRIDAY MORNING ACROSS COASTAL LOCATIONS. THERE IS
SOME HINT OF LIGHT OFFSHORE FLOW WHICH WILL LIKELY KEEP THE
STRATUS FROM PENETRATING TOO FAR UP COASTAL VALLEYS. LONG TERM
MODELS ARE NOW IN BETTER AGREEMENT ON BRINGING BACK A COOLER AND WETTER
PATTERN TO THE REGION BEGINNING WEDNESDAY OF NEXT WEEK. /RPA/JT



&&

.AVIATION...OTHER THAN SOME VERY LOCALIZED EARLY MORNING INTERIOR VALLEY
FOG...ALL AREAS INCLUDING THE COAST SHOULD REMAIN VFR THROUGH THE
NEXT TAF CYCLE.


&&

.MARINE...WHILE WINDS HAVE DIMINISHED SLIGHTLY COMPARED TO
YESTERDAY...ESPECIALLY ACROSS THE INNER WATERS...STEEP SHORT PERIOD
SEAS HAVE HOVERED AT 8 TO 10 FEET AT 8 TO 9 SECONDS AT OFFSHORE
BUOYS THIS AFTERNOON.  WHILE THE TREND HAS BEEN GRADUALLY DOWNWARD
TO THIS POINT...SATELLITE IMAGERY CONFIRMS THAT A SUBTLE SHORTWAVE
IS IN THE PROCESS OF MOVING ACROSS THE REGION NOW.  MODEL GUIDANCE
HAS PERSISTENTLY INDICATED THAT THIS WAVE WILL HELP TO TIGHTEN THE
PRESSURE GRADIENT SLIGHTLY AS IT PASSES...WHICH SHOULD BOOST WIND
SPEEDS UP A NOTCH THIS EVENING AND OVERNIGHT.  WHILE WIDESPREAD
GALES ARE NOT EXPECTED...SEAS ARE EXPECTED TO RAMP UP DURING THIS
PERIOD...PARTICULARLY ACROSS THE OUTER WATERS.  WAVE MODEL
PREDICTIONS CONTINUE TO INDICATE SEAS BUIDLING TO 10 FEET AT 8
SECONDS ACROSS MUCH OF THE OUTER WATERS...AND AS A RESULT...A
HAZARDOUS SEAS WARNING WILL GO INTO EFFECT FOR THE OUTER WATERS AT 2
PM AND LAST UNTIL 1 AM...IN ADDITION TO SMALL CRAFT ADVISORIES FOR
THE INNER WATERS FOR THE SAME TIME PERIOD.

ELEVATED SHORT PERIOD SEAS WILL LIKELY CONTINUE THROUGH WEDNESDAY
ACROSS THE OUTER WATERS...AS FRESH WINDS WILL PERSIST UNTIL LATE IN
THE DAY.  AS SUCH...SMALL CRAFT ADVISORIES WILL REMAIN IN EFFECT
FROM NOW UNTIL 3 PM TOMORROW IN THE SOUTHERN OUTER WATERS...AND
UNTIL 9 PM IN THE NORTHERN OUTER WATERS.  BEYOND TOMORROW...WINDS
WILL FINALLY DIMINISH TO BELOW SMALL CRAFT ADVISORY LEVELS AS THE
PRESSURE GRADIENT RELAXES.  A BUILDING WESTERLY SWELL WILL THEN
BECOME THE DOMINANT WAVE GROUP AS IT ENTERS THE WATERS SOMETIME LATE
WEDNESDAY.


&&

.EKA WATCHES/WARNINGS/ADVISORIES...
CA...
     FROST ADVISORY FROM 1 AM TO 7 AM PST WEDNESDAY FOR CAZ001-002.

     FREEZE WARNING FROM 1 AM TO 8 AM PST WEDNESDAY FOR CAZ076.

NORTHWEST CALIFORNIA COASTAL WATERS...
     SMALL CRAFT ADVISORY UNTIL 1 AM PST WEDNESDAY FOR PZZ450-455.

     SMALL CRAFT ADVISORY UNTIL 9 PM PST WEDNESDAY FOR PZZ470.

     HAZARDOUS SEAS WARNING UNTIL 1 AM PST WEDNESDAY FOR PZZ470-475.

     SMALL CRAFT ADVISORY UNTIL 3 PM PST WEDNESDAY FOR PZZ475.

&&

$$

VISIT US AT HTTP://WWW.WEATHER.GOV/EUREKA

FOLLOW US ON FACEBOOK AND TWITTER AT:
HTTP://WWW.FACEBOOK.COM/NWSEUREKA
HTTP://WWW.TWITTER.COM/NWSEUREKA





000
FXUS66 KEKA 032238
AFDEKA

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE EUREKA CA
238 PM PST TUE MAR 3 2015

.SYNOPSIS...HIGH PRESSURE WILL BUILD OVER NORTHWEST CALIFORNIA
THIS WEEK BRINGING DRY CONDITIONS AND A GRADUAL WARMUP THROUGH
THIS COMING WEEKEND. LOW TEMPERATURES FOR THE NEXT COUPLE OF
NIGHTS WILL FALL INTO THE 30S IN SEVERAL AREAS ALLOWING FOR SOME
FROST TO DEVELOP.

&&

.DISCUSSION...DRY NORTH AND NORTHEASTERLY FLOW CONTINUES ACROSS
THE REGION. EXPECTING A MASS OF EVEN DRIER AIR TO ALSO MOVE IN
FROM THE EAST TONIGHT THUS DEWPOINTS SHOULD CONTINUE TO DECREASE
TONIGHT ALLOWING FOR BETTER RADIATIONAL COOLING. THUS...FROST
ADVISORIES HAVE BEEN ISSUED FOR COASTAL AREAS AND A FREEZE WARNING
IS NOW IN EFFECT FOR THE INTERIOR VALLEYS OF MENDOCINO CO. ALL
MODEL GUIDANCE INDICATES THAT A RIDGE OF HIGH PRESSURE WILL
CONTINUE TO BUILD OVER THE WEST COAST INTO THIS WEEKEND BRINGING
WARMER TEMPERATURES AND DRY CONDITIONS. AFTERNOON HIGH
TEMPERATURES WILL CLIMB INTO THE 70S IN MENDOCINO COUNTY BY LATE
WEEK AND POSSIBLY REACH INTO THE UPPER 70S OVER THE WEEKEND.
ELSEWHERE HIGH TEMPERATURES WILL REMAIN PRIMARILY IN THE 60S WITH
A FEW UPPER 50S ALONG THE IMMEDIATE COAST. HIGH RESOLUTION MODEL
GUIDANCE INDICATES THAT STRATUS MAY REDEVELOP OFF THE COAST
THURSDAY INTO FRIDAY BRINGING THE POTENTIAL FOR LOW CLOUDS AND FOG
FOR COASTAL AREAS. CLOUD COVER HAS BEEN INCREASED WITH THIS UPDATE
THURSDAY THROUGH FRIDAY MORNING ACROSS COASTAL LOCATIONS. THERE IS
SOME HINT OF LIGHT OFFSHORE FLOW WHICH WILL LIKELY KEEP THE
STRATUS FROM PENETRATING TOO FAR UP COASTAL VALLEYS. LONG TERM
MODELS ARE NOW IN BETTER AGREEMENT ON BRINGING BACK A COOLER AND WETTER
PATTERN TO THE REGION BEGINNING WEDNESDAY OF NEXT WEEK. /RPA/JT



&&

.AVIATION...OTHER THAN SOME VERY LOCALIZED EARLY MORNING INTERIOR VALLEY
FOG...ALL AREAS INCLUDING THE COAST SHOULD REMAIN VFR THROUGH THE
NEXT TAF CYCLE.


&&

.MARINE...WHILE WINDS HAVE DIMINISHED SLIGHTLY COMPARED TO
YESTERDAY...ESPECIALLY ACROSS THE INNER WATERS...STEEP SHORT PERIOD
SEAS HAVE HOVERED AT 8 TO 10 FEET AT 8 TO 9 SECONDS AT OFFSHORE
BUOYS THIS AFTERNOON.  WHILE THE TREND HAS BEEN GRADUALLY DOWNWARD
TO THIS POINT...SATELLITE IMAGERY CONFIRMS THAT A SUBTLE SHORTWAVE
IS IN THE PROCESS OF MOVING ACROSS THE REGION NOW.  MODEL GUIDANCE
HAS PERSISTENTLY INDICATED THAT THIS WAVE WILL HELP TO TIGHTEN THE
PRESSURE GRADIENT SLIGHTLY AS IT PASSES...WHICH SHOULD BOOST WIND
SPEEDS UP A NOTCH THIS EVENING AND OVERNIGHT.  WHILE WIDESPREAD
GALES ARE NOT EXPECTED...SEAS ARE EXPECTED TO RAMP UP DURING THIS
PERIOD...PARTICULARLY ACROSS THE OUTER WATERS.  WAVE MODEL
PREDICTIONS CONTINUE TO INDICATE SEAS BUIDLING TO 10 FEET AT 8
SECONDS ACROSS MUCH OF THE OUTER WATERS...AND AS A RESULT...A
HAZARDOUS SEAS WARNING WILL GO INTO EFFECT FOR THE OUTER WATERS AT 2
PM AND LAST UNTIL 1 AM...IN ADDITION TO SMALL CRAFT ADVISORIES FOR
THE INNER WATERS FOR THE SAME TIME PERIOD.

ELEVATED SHORT PERIOD SEAS WILL LIKELY CONTINUE THROUGH WEDNESDAY
ACROSS THE OUTER WATERS...AS FRESH WINDS WILL PERSIST UNTIL LATE IN
THE DAY.  AS SUCH...SMALL CRAFT ADVISORIES WILL REMAIN IN EFFECT
FROM NOW UNTIL 3 PM TOMORROW IN THE SOUTHERN OUTER WATERS...AND
UNTIL 9 PM IN THE NORTHERN OUTER WATERS.  BEYOND TOMORROW...WINDS
WILL FINALLY DIMINISH TO BELOW SMALL CRAFT ADVISORY LEVELS AS THE
PRESSURE GRADIENT RELAXES.  A BUILDING WESTERLY SWELL WILL THEN
BECOME THE DOMINANT WAVE GROUP AS IT ENTERS THE WATERS SOMETIME LATE
WEDNESDAY.


&&

.EKA WATCHES/WARNINGS/ADVISORIES...
CA...
     FROST ADVISORY FROM 1 AM TO 7 AM PST WEDNESDAY FOR CAZ001-002.

     FREEZE WARNING FROM 1 AM TO 8 AM PST WEDNESDAY FOR CAZ076.

NORTHWEST CALIFORNIA COASTAL WATERS...
     SMALL CRAFT ADVISORY UNTIL 1 AM PST WEDNESDAY FOR PZZ450-455.

     SMALL CRAFT ADVISORY UNTIL 9 PM PST WEDNESDAY FOR PZZ470.

     HAZARDOUS SEAS WARNING UNTIL 1 AM PST WEDNESDAY FOR PZZ470-475.

     SMALL CRAFT ADVISORY UNTIL 3 PM PST WEDNESDAY FOR PZZ475.

&&

$$

VISIT US AT HTTP://WWW.WEATHER.GOV/EUREKA

FOLLOW US ON FACEBOOK AND TWITTER AT:
HTTP://WWW.FACEBOOK.COM/NWSEUREKA
HTTP://WWW.TWITTER.COM/NWSEUREKA




000
FXUS66 KEKA 031157
AFDEKA

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE EUREKA CA
357 AM PST TUE MAR 3 2015

.SYNOPSIS...HIGH PRESSURE WILL BUILD OVER NORTHWEST CALIFORNIA
THIS WEEK BRINGING DRY CONDITIONS AND A GRADUAL WARMUP THROUGH
THIS COMING WEEKEND. LOW TEMPERATURES FOR THE NEXT COUPLE OF
NIGHTS WILL FALL INTO THE 30S IN SEVERAL AREAS ALLOWING FOR SOME
FROST TO DEVELOP.


&&

.DISCUSSION...LINGERING LOW LEVEL MOISTURE BEHIND A DEPARTING LOW
PRESSURE SYSTEM HAS KEPT DEWPOINTS ELEVATED RESTRICTING RADIATIONAL
COOLING THIS MORNING. TEMPERATURES ARE JUST NOW REACHING THE UPPER
TO MIDDLE 30S IN INTERIOR MENDOCINO COUNTY AND A FEW ISOLATED
LOCATIONS OF COASTAL HUMBOLDT AND COASTAL MENDOCINO COUNTIES. AT
THIS TIME...WIDESPREAD FROST STILL LOOKS ONLY MOST LIKELY ACROSS
INTERIOR MENDOCINO COUNTY SO HAVE OPTED TO NOT EXPAND THE FROST
ADVISORIES TO THE COAST FOR THIS MORNING. DEWPOINTS SHOULD
CONTINUE TO DECREASE TODAY INTO TONIGHT ALLOWING FOR BETTER
RADIATIONAL COOLING TONIGHT AS HIGH PRESSURE BUILDS OVER NORTHWEST
CALIFORNIA. THUS...FROST ADVISORIES HAVE BEEN ISSUED FOR COASTAL
AREAS AND A FREEZE WATCH HAS BEEN ISSUED FOR INTERIOR MENDOCINO
COUNTY FOR TONIGHT. THE FREEZE WATCH WILL NEED TO BE UPGRADED TO A
WARNING OR FROST ADVISORY LATER THIS MORNING AFTER THE CURRENTLY
RUNNING FROST ADVISORY EXPIRES.

ALL MODEL GUIDANCE INDICATES THAT A RIDGE OF HIGH PRESSURE WILL
CONTINUE TO BUILD OVER THE WEST COAST INTO THIS WEEKEND BRINGING
WARMER TEMPERATURES AND DRY CONDITIONS. AFTERNOON HIGH TEMPERATURES
WILL CLIMB INTO THE 70S IN MENDOCINO COUNTY BY LATE WEEK AND
POSSIBLY REACH INTO THE UPPER 70S OVER THE WEEKEND. ELSEWHERE HIGH
TEMPERATURES WILL REMAIN PRIMARILY IN THE 60S WITH A FEW UPPER 50S
ALONG THE IMMEDIATE COAST.

HIGH RESOLUTION MODEL GUIDANCE INDICATES THAT STRATUS MAY REDEVELOP
OFF THE COAST THURSDAY INTO FRIDAY BRINGING THE POTENTIAL FOR LOW
CLOUDS AND FOG FOR COASTAL AREAS. CLOUD COVER HAS BEEN INCREASED
WITH THIS UPDATE THURSDAY THROUGH FRIDAY MORNING ACROSS COASTAL
LOCATIONS. THERE IS SOME HINT OF LIGHT OFFSHORE FLOW WHICH WILL
LIKELY KEEP THE STRATUS FROM PENETRATING TOO FAR UP COASTAL VALLEYS.
/RPA


&&

.AVIATION...EXPECT MOSTLY VFR TODAY WITH THE EXCEPTION OF SOME LOW
LEVEL CLOUD COVER ACROSS THE EEL RIVER DELTA AND SOME INTERIOR
VALLEYS THIS MORNING. THIS CLOUD COVER SHOULD DIMINISH BY THE LATE
MORNING HOURS, HOWEVER, HIGHER CLOUDS WILL FILTER OVER THE REGION
AHEAD OF AN APPROACHING SHORTWAVE TROUGH THIS AFTERNOON. IN
ADDITION, THIS TROUGH WILL BRING SOME GUSTY WINDS LATE THIS
AFTERNOON INTO THE EARLY EVENING. LOW CLOUD COVER COULD DEVELOP IN
SIMILAR SPOTS AGAIN TONIGHT BUT DRY OFFSHORE FLOW WILL HELP CLEAR IT
OUT LATE IN THE TAF PERIOD. /KML


&&

.MARINE...WINDS HAVE BEGUN TO SLOWLY DIMINISH ACROSS THE COASTAL
WATERS AS THE SURFACE PRESSURE GRADIENT WEAKENS BEHIND THE PASSING
LOW PRESSURE SYSTEM. AS A RESULT, GALES WERE ALLOWED TO EXPIRE EARLY
THIS MORNING. FRESH WINDS WILL LINGER THROUGH THE DAY WITH A QUICK
RAMP UP LATE THIS AFTERNOON INTO THE EVENING AS AN ADDITIONAL
SHORTWAVE TROUGH PASSES OVER THE REGION CAUSING THE GRADIENT TO
CONTRACT. NORTHERLY WINDS WILL CONTINUE TO DECLINE WEDNESDAY AND
REMAIN LIGHT TO MODERATE WITH VARYING DIRECTIONS THROUGH THE WEEKEND
AS A RIDGE OF HIGH PRESSURE THAT IS CURRENTLY OVER THE EASTERN
PACIFIC SHIFTS TOWARDS THE PACIFIC NORTHWEST. THE OVERALL SEA STATE
WILL GRADUALLY SUBSIDE IN RESPONSE TO THE DIMINISHING WINDS.
HAZARDOUS SEAS WARNINGS WERE ISSUED FOR THE OUTER WATERS THROUGH
LATER THIS MORNING TO ACCOUNT FOR THE LINGERING STEEP SEAS WITH
SMALL CRAFT ADVISORIES FOLLOWING THROUGH WEDNESDAY EVENING. AN
ADVISORY MAY BE NEEDED FOR THE NORTHERN INNER WATERS THIS AFTERNOON
WITH THE SPURT OF WINDS HOWEVER SMALL CRAFT WINDS LOOK TO BE
MARGINAL AND SHORT LIVED. WILL ALLOW THE DAY SHIFT TO ASSESS AND
ISSUE IF NECESSARY. SEAS WILL CONTINUE TO SETTLE LATE IN THE WEEK AS
THE SHORTER PERIOD WAVE SYSTEMS DIMINISH LEAVING MID TO LONG PERIOD
WAVES TO DOMINATE THE MARINE ENVIRONMENT INTO THE WEEKEND. /KML


&&

.EKA WATCHES/WARNINGS/ADVISORIES...
CA...
     FROST ADVISORY FROM 1 AM TO 7 AM PST WEDNESDAY FOR CAZ001-002.

     FROST ADVISORY UNTIL 8 AM PST THIS MORNING FOR CAZ076.

     FREEZE WATCH FROM LATE TONIGHT THROUGH WEDNESDAY MORNING FOR
     CAZ076.

NORTHWEST CALIFORNIA COASTAL WATERS...
     SMALL CRAFT ADVISORY UNTIL 9 AM PST THIS MORNING FOR PZZ450-455.

     SMALL CRAFT ADVISORY UNTIL 9 PM PST WEDNESDAY FOR PZZ470.

     HAZARDOUS SEAS WARNING UNTIL 9 AM PST THIS MORNING FOR
     PZZ470-475.

     SMALL CRAFT ADVISORY UNTIL 3 PM PST WEDNESDAY FOR PZZ475.

&&

$$

VISIT US AT HTTP://WWW.WEATHER.GOV/EUREKA

FOLLOW US ON FACEBOOK AND TWITTER AT:
HTTP://WWW.FACEBOOK.COM/NWSEUREKA
HTTP://WWW.TWITTER.COM/NWSEUREKA





000
FXUS66 KEKA 022305
AFDEKA

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE EUREKA CA
305 PM PST MON MAR 2 2015

.SYNOPSIS..AN UPPER LEVEL RIDGING WILL BEGIN TO DEVELOP OVER THE
WEST COAST TONIGHT ACCOMPANIED BY DRY COOL NORTHERLY FLOW. COLD
NIGHTS AND AREAS OF MORNING FROST ARE POSSIBLE THROUGH THURSDAY.
TEMPERATURES WILL WARM TOWARD THE END OF THE WEEK FOR VERY
PLEASANT WEATHER.

&&

.DISCUSSION...A DRYING TREND WILL RAPIDLY DEVELOP THIS EVENING
AS SLIGHTLY DRIER AND COLDER AIR BEGINS TO MOVE OVER NORTHWEST
CALIFORNIA BEHIND THE DEPARTING UPPER LEVEL SHORTWAVE. BASED
ON MODELED RH FIELDS HAVE REMOVED CLOUD COVER FOR TONIGHT THUS
ALLOWING TEMPERATURES TO EVENTUALLY FALL FROST CRITERIA ACROSS
THE MENDOCINO VALLEYS (A FROST ADVISORY IS IN EFFECT FOR THESE
AREAS). ALTHOUGH THE COAST WILL ALSO BE CLOUD FREE TONIGHT NOT
ENTIRELY CONFIDENT LOW TEMPS WILL REACH FROST CONDITIONS ACROSS
COASTAL GROWING AREAS BUT SOME ISOLATED AREAS OF FROST ARE
CERTAINLY POSSIBLE TOWARD SUNRISE. COLD AIR WILL REMAIN IN PLACE
TUESDAY NIGHT WHILE THE ATMOSPHERE CONTINUES TO DRY. THUS THERE IS
A HIGHER POSSIBILITY OF FROSTY/FREEZING TEMPERATURES TUESDAY NIGHT
INTO WEDNESDAY MORNING. TEMPERATURES HAVE BEEN TRENDED DOWN CLOSER
TO THE GFSBC GUIDANCE WITH LOWS IN THE 20S TO LOWER 30S ACROSS THE
INTERIOR VALLEYS AND THE MIDDLE TO UPPER 30S NEAR THE COAST. UPPER
LEVEL RIDGING WILL BUILD OVER THE WEST COAST MIDWEEK INTO NEXT
WEEKEND BRINGING A GRADUALLY WARMING TREND AND DRY CONDITIONS TO
NORTHWEST CALIFORNIA. DEPENDING ON WHERE EXACTLY THE UPPER LEVEL
RIDGE SETTLES THERE MAY BE PERIODS OF MARINE LAYER CLOUDINESS BUT
CONFIDENCE IN ANY STRATUS OVER THE WATERS IMPACTING THE COAST IS
CURRENTLY LOW. RPA/JT

&&

.AVIATION...VFR CONDITIONS EXPECTED AT AT ALL TERMINALS THROUGH THIS EVENING.
AT ACV...GUIDANCE SUGGESTS THAT A SLIGHT ONSHORE FLOW MAY PERSIST
THROUGH THE NIGHT...PERHAPS ALLOWING FOR THE DEVELOPMENT OF LOW
STRATUS AND LOCALIZED FOG IN THE VICINITY OF HUMBOLDT BAY. SOME
VALLEY FOG MAY ALSO DEVELOP IN THE INTERIOR AS RIDGING DEVELOPS
ALOFT...INCLUDING AT UKI.  AT CEC...VFR CONDITIONS ARE EXPECTED TO
CONTINUE THROUGHOUT THE 24 HOUR PERIOD.

&&

.MARINE...WHILE STEEP SHORT PERIOD SEAS CONTINUE ACROSS THE WATERS THIS
AFTERNOON...A SLIGHT LULL IN WIND SPEEDS HAS ALLOWED SEAS IN THE
NEAR SHORE WATERS TO SETTLE BY A FOOT OR TWO FROM EARLY THIS
MORNING.  WHILE WINDS/SEAS MAY NOT QUITE MEET THE TECHNICAL
GALE/HAZARDOUS SEAS CRITIERIA IN THE CURRENT HEADLINES DUE TO THIS
SLIGHT LULL...THEY REMAIN WELL INTO SMALL CRAFT ADVISORY
LEVELS...WITH OFFSHORE BUOYS REGISTERING SEAS OF 8 TO 10 FEET AT 8
SECONDS AS OF EARLY THIS AFTERNOON.  THIS SLIGHT RELATIVE LULL WILL
BE SHORT LIVED...HOWEVER...AS ANOTHER SURGE OF WIND SPEEDS IS
EXPECTED TO DEVELOP ACROSS THE WATERS DURING THE EVENING HOURS.  AS
THIS OCCURS...SEAS ARE EXPECTED TO BUILD ACROSS THE WATERS YET
AGAIN...AND AS SUCH THE CURRENT GALE/HAZARDOUS SEAS WARNINGS HAVE
BEEN EXTENDED 6 HOURS UNTIL 11Z.  AT THAT POINT...WINDS BEGIN TO
DIMINISH AND PEEL AWAY FROM THE INNER WATERS ALLOWING SEAS IN THIS
REGION TO SETTLE...ALTHOUGH THERE REMAINS A BIT OF UNCERTAINTY AS TO
EXACTLY WHEN THEY WILL FALL BELOW SMALL CRAFT ADVISORY LEVELS.  IN
THE OUTER WATERS...WINDS WILL DIMINISH FROM GALE STRENGTH BUT WILL
REMAIN IN THE FRESH TO STRONG BREEZE RANGE THROUGH MID DAY
WEDNESDAY.  AS SUCH...STEEP SHORT PERIOD SEAS WILL CONTINUE AND
LIKELY REQUIRE THE ISSUANCE OF A SMALL CRAFT ADVISORY WHEN THE
CURRENT HEADLINES EXPIRE.

IN ADDITION TO THE STEEP SHORT PERIOD SEAS...A SMALL SOUTHERLY SWELL
WILL ENTER THE WATERS BEGINNING EARLY TOMORROW...BUT ITS IMPACT WILL
LIKELY BE MASKED BY THE PERSISTENT SHORT PERIOD SEAS UNTIL AT LEAST
WEDNESDAY...AND EVEN THEN IT MAY ONLY BE NOTICED ON SOUTH FACING
BEACHES IF AT ALL.  A SOMEWHAT LARGER WESTERLY SWELL WILL LIKELY
BECOME THE DOMINANT WAVE GROUP LATE IN THE WEEK...AS WINDS AND STEEP
SHORT PERIOD SEAS WILL HAVE DIMINISHED BY THEN.


&&

.EKA WATCHES/WARNINGS/ADVISORIES...
CA...
     FROST ADVISORY FROM 1 AM TO 8 AM PST TUESDAY FOR CAZ076.

NORTHWEST CALIFORNIA COASTAL WATERS...
     SMALL CRAFT ADVISORY UNTIL 3 AM PST TUESDAY FOR PZZ450.

     HAZARDOUS SEAS WARNING UNTIL 3 AM PST TUESDAY FOR PZZ450-455.

     SMALL CRAFT ADVISORY UNTIL 3 AM PST TUESDAY FOR PZZ455.

     GALE WARNING UNTIL 3 AM PST TUESDAY FOR PZZ470-475.

&&

$$

VISIT US AT HTTP://WWW.WEATHER.GOV/EUREKA

FOLLOW US ON FACEBOOK AND TWITTER AT:
HTTP://WWW.FACEBOOK.COM/NWSEUREKA
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000
FXUS66 KEKA 022305
AFDEKA

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE EUREKA CA
305 PM PST MON MAR 2 2015

.SYNOPSIS..AN UPPER LEVEL RIDGING WILL BEGIN TO DEVELOP OVER THE
WEST COAST TONIGHT ACCOMPANIED BY DRY COOL NORTHERLY FLOW. COLD
NIGHTS AND AREAS OF MORNING FROST ARE POSSIBLE THROUGH THURSDAY.
TEMPERATURES WILL WARM TOWARD THE END OF THE WEEK FOR VERY
PLEASANT WEATHER.

&&

.DISCUSSION...A DRYING TREND WILL RAPIDLY DEVELOP THIS EVENING
AS SLIGHTLY DRIER AND COLDER AIR BEGINS TO MOVE OVER NORTHWEST
CALIFORNIA BEHIND THE DEPARTING UPPER LEVEL SHORTWAVE. BASED
ON MODELED RH FIELDS HAVE REMOVED CLOUD COVER FOR TONIGHT THUS
ALLOWING TEMPERATURES TO EVENTUALLY FALL FROST CRITERIA ACROSS
THE MENDOCINO VALLEYS (A FROST ADVISORY IS IN EFFECT FOR THESE
AREAS). ALTHOUGH THE COAST WILL ALSO BE CLOUD FREE TONIGHT NOT
ENTIRELY CONFIDENT LOW TEMPS WILL REACH FROST CONDITIONS ACROSS
COASTAL GROWING AREAS BUT SOME ISOLATED AREAS OF FROST ARE
CERTAINLY POSSIBLE TOWARD SUNRISE. COLD AIR WILL REMAIN IN PLACE
TUESDAY NIGHT WHILE THE ATMOSPHERE CONTINUES TO DRY. THUS THERE IS
A HIGHER POSSIBILITY OF FROSTY/FREEZING TEMPERATURES TUESDAY NIGHT
INTO WEDNESDAY MORNING. TEMPERATURES HAVE BEEN TRENDED DOWN CLOSER
TO THE GFSBC GUIDANCE WITH LOWS IN THE 20S TO LOWER 30S ACROSS THE
INTERIOR VALLEYS AND THE MIDDLE TO UPPER 30S NEAR THE COAST. UPPER
LEVEL RIDGING WILL BUILD OVER THE WEST COAST MIDWEEK INTO NEXT
WEEKEND BRINGING A GRADUALLY WARMING TREND AND DRY CONDITIONS TO
NORTHWEST CALIFORNIA. DEPENDING ON WHERE EXACTLY THE UPPER LEVEL
RIDGE SETTLES THERE MAY BE PERIODS OF MARINE LAYER CLOUDINESS BUT
CONFIDENCE IN ANY STRATUS OVER THE WATERS IMPACTING THE COAST IS
CURRENTLY LOW. RPA/JT

&&

.AVIATION...VFR CONDITIONS EXPECTED AT AT ALL TERMINALS THROUGH THIS EVENING.
AT ACV...GUIDANCE SUGGESTS THAT A SLIGHT ONSHORE FLOW MAY PERSIST
THROUGH THE NIGHT...PERHAPS ALLOWING FOR THE DEVELOPMENT OF LOW
STRATUS AND LOCALIZED FOG IN THE VICINITY OF HUMBOLDT BAY. SOME
VALLEY FOG MAY ALSO DEVELOP IN THE INTERIOR AS RIDGING DEVELOPS
ALOFT...INCLUDING AT UKI.  AT CEC...VFR CONDITIONS ARE EXPECTED TO
CONTINUE THROUGHOUT THE 24 HOUR PERIOD.

&&

.MARINE...WHILE STEEP SHORT PERIOD SEAS CONTINUE ACROSS THE WATERS THIS
AFTERNOON...A SLIGHT LULL IN WIND SPEEDS HAS ALLOWED SEAS IN THE
NEAR SHORE WATERS TO SETTLE BY A FOOT OR TWO FROM EARLY THIS
MORNING.  WHILE WINDS/SEAS MAY NOT QUITE MEET THE TECHNICAL
GALE/HAZARDOUS SEAS CRITIERIA IN THE CURRENT HEADLINES DUE TO THIS
SLIGHT LULL...THEY REMAIN WELL INTO SMALL CRAFT ADVISORY
LEVELS...WITH OFFSHORE BUOYS REGISTERING SEAS OF 8 TO 10 FEET AT 8
SECONDS AS OF EARLY THIS AFTERNOON.  THIS SLIGHT RELATIVE LULL WILL
BE SHORT LIVED...HOWEVER...AS ANOTHER SURGE OF WIND SPEEDS IS
EXPECTED TO DEVELOP ACROSS THE WATERS DURING THE EVENING HOURS.  AS
THIS OCCURS...SEAS ARE EXPECTED TO BUILD ACROSS THE WATERS YET
AGAIN...AND AS SUCH THE CURRENT GALE/HAZARDOUS SEAS WARNINGS HAVE
BEEN EXTENDED 6 HOURS UNTIL 11Z.  AT THAT POINT...WINDS BEGIN TO
DIMINISH AND PEEL AWAY FROM THE INNER WATERS ALLOWING SEAS IN THIS
REGION TO SETTLE...ALTHOUGH THERE REMAINS A BIT OF UNCERTAINTY AS TO
EXACTLY WHEN THEY WILL FALL BELOW SMALL CRAFT ADVISORY LEVELS.  IN
THE OUTER WATERS...WINDS WILL DIMINISH FROM GALE STRENGTH BUT WILL
REMAIN IN THE FRESH TO STRONG BREEZE RANGE THROUGH MID DAY
WEDNESDAY.  AS SUCH...STEEP SHORT PERIOD SEAS WILL CONTINUE AND
LIKELY REQUIRE THE ISSUANCE OF A SMALL CRAFT ADVISORY WHEN THE
CURRENT HEADLINES EXPIRE.

IN ADDITION TO THE STEEP SHORT PERIOD SEAS...A SMALL SOUTHERLY SWELL
WILL ENTER THE WATERS BEGINNING EARLY TOMORROW...BUT ITS IMPACT WILL
LIKELY BE MASKED BY THE PERSISTENT SHORT PERIOD SEAS UNTIL AT LEAST
WEDNESDAY...AND EVEN THEN IT MAY ONLY BE NOTICED ON SOUTH FACING
BEACHES IF AT ALL.  A SOMEWHAT LARGER WESTERLY SWELL WILL LIKELY
BECOME THE DOMINANT WAVE GROUP LATE IN THE WEEK...AS WINDS AND STEEP
SHORT PERIOD SEAS WILL HAVE DIMINISHED BY THEN.


&&

.EKA WATCHES/WARNINGS/ADVISORIES...
CA...
     FROST ADVISORY FROM 1 AM TO 8 AM PST TUESDAY FOR CAZ076.

NORTHWEST CALIFORNIA COASTAL WATERS...
     SMALL CRAFT ADVISORY UNTIL 3 AM PST TUESDAY FOR PZZ450.

     HAZARDOUS SEAS WARNING UNTIL 3 AM PST TUESDAY FOR PZZ450-455.

     SMALL CRAFT ADVISORY UNTIL 3 AM PST TUESDAY FOR PZZ455.

     GALE WARNING UNTIL 3 AM PST TUESDAY FOR PZZ470-475.

&&

$$

VISIT US AT HTTP://WWW.WEATHER.GOV/EUREKA

FOLLOW US ON FACEBOOK AND TWITTER AT:
HTTP://WWW.FACEBOOK.COM/NWSEUREKA
HTTP://WWW.TWITTER.COM/NWSEUREKA





000
FXUS66 KEKA 022305
AFDEKA

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE EUREKA CA
305 PM PST MON MAR 2 2015

.SYNOPSIS..AN UPPER LEVEL RIDGING WILL BEGIN TO DEVELOP OVER THE
WEST COAST TONIGHT ACCOMPANIED BY DRY COOL NORTHERLY FLOW. COLD
NIGHTS AND AREAS OF MORNING FROST ARE POSSIBLE THROUGH THURSDAY.
TEMPERATURES WILL WARM TOWARD THE END OF THE WEEK FOR VERY
PLEASANT WEATHER.

&&

.DISCUSSION...A DRYING TREND WILL RAPIDLY DEVELOP THIS EVENING
AS SLIGHTLY DRIER AND COLDER AIR BEGINS TO MOVE OVER NORTHWEST
CALIFORNIA BEHIND THE DEPARTING UPPER LEVEL SHORTWAVE. BASED
ON MODELED RH FIELDS HAVE REMOVED CLOUD COVER FOR TONIGHT THUS
ALLOWING TEMPERATURES TO EVENTUALLY FALL FROST CRITERIA ACROSS
THE MENDOCINO VALLEYS (A FROST ADVISORY IS IN EFFECT FOR THESE
AREAS). ALTHOUGH THE COAST WILL ALSO BE CLOUD FREE TONIGHT NOT
ENTIRELY CONFIDENT LOW TEMPS WILL REACH FROST CONDITIONS ACROSS
COASTAL GROWING AREAS BUT SOME ISOLATED AREAS OF FROST ARE
CERTAINLY POSSIBLE TOWARD SUNRISE. COLD AIR WILL REMAIN IN PLACE
TUESDAY NIGHT WHILE THE ATMOSPHERE CONTINUES TO DRY. THUS THERE IS
A HIGHER POSSIBILITY OF FROSTY/FREEZING TEMPERATURES TUESDAY NIGHT
INTO WEDNESDAY MORNING. TEMPERATURES HAVE BEEN TRENDED DOWN CLOSER
TO THE GFSBC GUIDANCE WITH LOWS IN THE 20S TO LOWER 30S ACROSS THE
INTERIOR VALLEYS AND THE MIDDLE TO UPPER 30S NEAR THE COAST. UPPER
LEVEL RIDGING WILL BUILD OVER THE WEST COAST MIDWEEK INTO NEXT
WEEKEND BRINGING A GRADUALLY WARMING TREND AND DRY CONDITIONS TO
NORTHWEST CALIFORNIA. DEPENDING ON WHERE EXACTLY THE UPPER LEVEL
RIDGE SETTLES THERE MAY BE PERIODS OF MARINE LAYER CLOUDINESS BUT
CONFIDENCE IN ANY STRATUS OVER THE WATERS IMPACTING THE COAST IS
CURRENTLY LOW. RPA/JT

&&

.AVIATION...VFR CONDITIONS EXPECTED AT AT ALL TERMINALS THROUGH THIS EVENING.
AT ACV...GUIDANCE SUGGESTS THAT A SLIGHT ONSHORE FLOW MAY PERSIST
THROUGH THE NIGHT...PERHAPS ALLOWING FOR THE DEVELOPMENT OF LOW
STRATUS AND LOCALIZED FOG IN THE VICINITY OF HUMBOLDT BAY. SOME
VALLEY FOG MAY ALSO DEVELOP IN THE INTERIOR AS RIDGING DEVELOPS
ALOFT...INCLUDING AT UKI.  AT CEC...VFR CONDITIONS ARE EXPECTED TO
CONTINUE THROUGHOUT THE 24 HOUR PERIOD.

&&

.MARINE...WHILE STEEP SHORT PERIOD SEAS CONTINUE ACROSS THE WATERS THIS
AFTERNOON...A SLIGHT LULL IN WIND SPEEDS HAS ALLOWED SEAS IN THE
NEAR SHORE WATERS TO SETTLE BY A FOOT OR TWO FROM EARLY THIS
MORNING.  WHILE WINDS/SEAS MAY NOT QUITE MEET THE TECHNICAL
GALE/HAZARDOUS SEAS CRITIERIA IN THE CURRENT HEADLINES DUE TO THIS
SLIGHT LULL...THEY REMAIN WELL INTO SMALL CRAFT ADVISORY
LEVELS...WITH OFFSHORE BUOYS REGISTERING SEAS OF 8 TO 10 FEET AT 8
SECONDS AS OF EARLY THIS AFTERNOON.  THIS SLIGHT RELATIVE LULL WILL
BE SHORT LIVED...HOWEVER...AS ANOTHER SURGE OF WIND SPEEDS IS
EXPECTED TO DEVELOP ACROSS THE WATERS DURING THE EVENING HOURS.  AS
THIS OCCURS...SEAS ARE EXPECTED TO BUILD ACROSS THE WATERS YET
AGAIN...AND AS SUCH THE CURRENT GALE/HAZARDOUS SEAS WARNINGS HAVE
BEEN EXTENDED 6 HOURS UNTIL 11Z.  AT THAT POINT...WINDS BEGIN TO
DIMINISH AND PEEL AWAY FROM THE INNER WATERS ALLOWING SEAS IN THIS
REGION TO SETTLE...ALTHOUGH THERE REMAINS A BIT OF UNCERTAINTY AS TO
EXACTLY WHEN THEY WILL FALL BELOW SMALL CRAFT ADVISORY LEVELS.  IN
THE OUTER WATERS...WINDS WILL DIMINISH FROM GALE STRENGTH BUT WILL
REMAIN IN THE FRESH TO STRONG BREEZE RANGE THROUGH MID DAY
WEDNESDAY.  AS SUCH...STEEP SHORT PERIOD SEAS WILL CONTINUE AND
LIKELY REQUIRE THE ISSUANCE OF A SMALL CRAFT ADVISORY WHEN THE
CURRENT HEADLINES EXPIRE.

IN ADDITION TO THE STEEP SHORT PERIOD SEAS...A SMALL SOUTHERLY SWELL
WILL ENTER THE WATERS BEGINNING EARLY TOMORROW...BUT ITS IMPACT WILL
LIKELY BE MASKED BY THE PERSISTENT SHORT PERIOD SEAS UNTIL AT LEAST
WEDNESDAY...AND EVEN THEN IT MAY ONLY BE NOTICED ON SOUTH FACING
BEACHES IF AT ALL.  A SOMEWHAT LARGER WESTERLY SWELL WILL LIKELY
BECOME THE DOMINANT WAVE GROUP LATE IN THE WEEK...AS WINDS AND STEEP
SHORT PERIOD SEAS WILL HAVE DIMINISHED BY THEN.


&&

.EKA WATCHES/WARNINGS/ADVISORIES...
CA...
     FROST ADVISORY FROM 1 AM TO 8 AM PST TUESDAY FOR CAZ076.

NORTHWEST CALIFORNIA COASTAL WATERS...
     SMALL CRAFT ADVISORY UNTIL 3 AM PST TUESDAY FOR PZZ450.

     HAZARDOUS SEAS WARNING UNTIL 3 AM PST TUESDAY FOR PZZ450-455.

     SMALL CRAFT ADVISORY UNTIL 3 AM PST TUESDAY FOR PZZ455.

     GALE WARNING UNTIL 3 AM PST TUESDAY FOR PZZ470-475.

&&

$$

VISIT US AT HTTP://WWW.WEATHER.GOV/EUREKA

FOLLOW US ON FACEBOOK AND TWITTER AT:
HTTP://WWW.FACEBOOK.COM/NWSEUREKA
HTTP://WWW.TWITTER.COM/NWSEUREKA




000
FXUS66 KEKA 022305
AFDEKA

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE EUREKA CA
305 PM PST MON MAR 2 2015

.SYNOPSIS..AN UPPER LEVEL RIDGING WILL BEGIN TO DEVELOP OVER THE
WEST COAST TONIGHT ACCOMPANIED BY DRY COOL NORTHERLY FLOW. COLD
NIGHTS AND AREAS OF MORNING FROST ARE POSSIBLE THROUGH THURSDAY.
TEMPERATURES WILL WARM TOWARD THE END OF THE WEEK FOR VERY
PLEASANT WEATHER.

&&

.DISCUSSION...A DRYING TREND WILL RAPIDLY DEVELOP THIS EVENING
AS SLIGHTLY DRIER AND COLDER AIR BEGINS TO MOVE OVER NORTHWEST
CALIFORNIA BEHIND THE DEPARTING UPPER LEVEL SHORTWAVE. BASED
ON MODELED RH FIELDS HAVE REMOVED CLOUD COVER FOR TONIGHT THUS
ALLOWING TEMPERATURES TO EVENTUALLY FALL FROST CRITERIA ACROSS
THE MENDOCINO VALLEYS (A FROST ADVISORY IS IN EFFECT FOR THESE
AREAS). ALTHOUGH THE COAST WILL ALSO BE CLOUD FREE TONIGHT NOT
ENTIRELY CONFIDENT LOW TEMPS WILL REACH FROST CONDITIONS ACROSS
COASTAL GROWING AREAS BUT SOME ISOLATED AREAS OF FROST ARE
CERTAINLY POSSIBLE TOWARD SUNRISE. COLD AIR WILL REMAIN IN PLACE
TUESDAY NIGHT WHILE THE ATMOSPHERE CONTINUES TO DRY. THUS THERE IS
A HIGHER POSSIBILITY OF FROSTY/FREEZING TEMPERATURES TUESDAY NIGHT
INTO WEDNESDAY MORNING. TEMPERATURES HAVE BEEN TRENDED DOWN CLOSER
TO THE GFSBC GUIDANCE WITH LOWS IN THE 20S TO LOWER 30S ACROSS THE
INTERIOR VALLEYS AND THE MIDDLE TO UPPER 30S NEAR THE COAST. UPPER
LEVEL RIDGING WILL BUILD OVER THE WEST COAST MIDWEEK INTO NEXT
WEEKEND BRINGING A GRADUALLY WARMING TREND AND DRY CONDITIONS TO
NORTHWEST CALIFORNIA. DEPENDING ON WHERE EXACTLY THE UPPER LEVEL
RIDGE SETTLES THERE MAY BE PERIODS OF MARINE LAYER CLOUDINESS BUT
CONFIDENCE IN ANY STRATUS OVER THE WATERS IMPACTING THE COAST IS
CURRENTLY LOW. RPA/JT

&&

.AVIATION...VFR CONDITIONS EXPECTED AT AT ALL TERMINALS THROUGH THIS EVENING.
AT ACV...GUIDANCE SUGGESTS THAT A SLIGHT ONSHORE FLOW MAY PERSIST
THROUGH THE NIGHT...PERHAPS ALLOWING FOR THE DEVELOPMENT OF LOW
STRATUS AND LOCALIZED FOG IN THE VICINITY OF HUMBOLDT BAY. SOME
VALLEY FOG MAY ALSO DEVELOP IN THE INTERIOR AS RIDGING DEVELOPS
ALOFT...INCLUDING AT UKI.  AT CEC...VFR CONDITIONS ARE EXPECTED TO
CONTINUE THROUGHOUT THE 24 HOUR PERIOD.

&&

.MARINE...WHILE STEEP SHORT PERIOD SEAS CONTINUE ACROSS THE WATERS THIS
AFTERNOON...A SLIGHT LULL IN WIND SPEEDS HAS ALLOWED SEAS IN THE
NEAR SHORE WATERS TO SETTLE BY A FOOT OR TWO FROM EARLY THIS
MORNING.  WHILE WINDS/SEAS MAY NOT QUITE MEET THE TECHNICAL
GALE/HAZARDOUS SEAS CRITIERIA IN THE CURRENT HEADLINES DUE TO THIS
SLIGHT LULL...THEY REMAIN WELL INTO SMALL CRAFT ADVISORY
LEVELS...WITH OFFSHORE BUOYS REGISTERING SEAS OF 8 TO 10 FEET AT 8
SECONDS AS OF EARLY THIS AFTERNOON.  THIS SLIGHT RELATIVE LULL WILL
BE SHORT LIVED...HOWEVER...AS ANOTHER SURGE OF WIND SPEEDS IS
EXPECTED TO DEVELOP ACROSS THE WATERS DURING THE EVENING HOURS.  AS
THIS OCCURS...SEAS ARE EXPECTED TO BUILD ACROSS THE WATERS YET
AGAIN...AND AS SUCH THE CURRENT GALE/HAZARDOUS SEAS WARNINGS HAVE
BEEN EXTENDED 6 HOURS UNTIL 11Z.  AT THAT POINT...WINDS BEGIN TO
DIMINISH AND PEEL AWAY FROM THE INNER WATERS ALLOWING SEAS IN THIS
REGION TO SETTLE...ALTHOUGH THERE REMAINS A BIT OF UNCERTAINTY AS TO
EXACTLY WHEN THEY WILL FALL BELOW SMALL CRAFT ADVISORY LEVELS.  IN
THE OUTER WATERS...WINDS WILL DIMINISH FROM GALE STRENGTH BUT WILL
REMAIN IN THE FRESH TO STRONG BREEZE RANGE THROUGH MID DAY
WEDNESDAY.  AS SUCH...STEEP SHORT PERIOD SEAS WILL CONTINUE AND
LIKELY REQUIRE THE ISSUANCE OF A SMALL CRAFT ADVISORY WHEN THE
CURRENT HEADLINES EXPIRE.

IN ADDITION TO THE STEEP SHORT PERIOD SEAS...A SMALL SOUTHERLY SWELL
WILL ENTER THE WATERS BEGINNING EARLY TOMORROW...BUT ITS IMPACT WILL
LIKELY BE MASKED BY THE PERSISTENT SHORT PERIOD SEAS UNTIL AT LEAST
WEDNESDAY...AND EVEN THEN IT MAY ONLY BE NOTICED ON SOUTH FACING
BEACHES IF AT ALL.  A SOMEWHAT LARGER WESTERLY SWELL WILL LIKELY
BECOME THE DOMINANT WAVE GROUP LATE IN THE WEEK...AS WINDS AND STEEP
SHORT PERIOD SEAS WILL HAVE DIMINISHED BY THEN.


&&

.EKA WATCHES/WARNINGS/ADVISORIES...
CA...
     FROST ADVISORY FROM 1 AM TO 8 AM PST TUESDAY FOR CAZ076.

NORTHWEST CALIFORNIA COASTAL WATERS...
     SMALL CRAFT ADVISORY UNTIL 3 AM PST TUESDAY FOR PZZ450.

     HAZARDOUS SEAS WARNING UNTIL 3 AM PST TUESDAY FOR PZZ450-455.

     SMALL CRAFT ADVISORY UNTIL 3 AM PST TUESDAY FOR PZZ455.

     GALE WARNING UNTIL 3 AM PST TUESDAY FOR PZZ470-475.

&&

$$

VISIT US AT HTTP://WWW.WEATHER.GOV/EUREKA

FOLLOW US ON FACEBOOK AND TWITTER AT:
HTTP://WWW.FACEBOOK.COM/NWSEUREKA
HTTP://WWW.TWITTER.COM/NWSEUREKA




000
FXUS66 KEKA 021233
AFDEKA

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE EUREKA CA
433 AM PST MON MAR 2 2015

.SYNOPSIS...A WEAK SYSTEM WILL BRING A FEW SHOWERS TO NORTHWEST
CALIFORNIA TODAY. UPPER LEVEL RIDGING WILL BEGIN TO DEVELOP OVER
THE WEST COAST ON TUESDAY AND THEN PERSIST INTO THIS COMING
WEEKEND. THE DEVELOPING RIDGE WILL RESULT IN DRY CONDITIONS AND
A GRADUAL WARMING TREND THROUGH THE WEEK.

&&

.DISCUSSION...AN UPPER LEVEL SHORTWAVE IS QUICKLY PASSING THROUGH
NORTHWEST CALIFORNIA THIS MORNING. SHOWERS HAVE INCREASED IN NUMBER
OVER THE COASTAL WATERS AND SOME HAVE MOVED ONSHORE NEAR CAPE
MENDOCINO. THIS TREND SHOULD CONTINUE THROUGH THE MORNING HOURS
UNTIL THE SHORTWAVE PASSES SOUTH OF THE AREA AND WEAK CONVERGENT
FLOW OVER THE MOUNTAINS OF EASTERN MENDOCINO AND SOUTHERN TRINITY
COUNTIES ALLOWS SOME ADDITIONAL SHOWERS TO FORM LATER THIS MORNING
AND AFTERNOON. INSTABILITY NOW APPEARS TO BE QUITE MINIMAL SO
THUNDER HAS BEEN REMOVED FROM THE FORECAST FOR THIS AFTERNOON.

A DRYING TREND WILL RAPIDLY DEVELOP THIS EVENING AS SLIGHTLY DRIER
AIR BEGINS TO MOVE OVER NORTHWEST CALIFORNIA BEHIND THE DEPARTING
UPPER LEVEL SHORTWAVE. HOWEVER...MODEL GUIDANCE INDICATES HIGH
BOUNDARY LAYER MOISTURE MAY ALLOW A SIGNIFICANT NUMBER OF LOW
CLOUDS TO REMAIN ACROSS THE REGION...PARTICULARLY IN THE HUMBOLDT
BAY AREA AND MENDOCINO COUNTY. THIS CLOUD COVER MAY ACTUALLY
DECREASE IN COVERAGE OVERNIGHT ALLOWING TEMPERATURES TO EVENTUALLY
FALL POSSIBLY TO FROST/FREEZE CRITERIA IN THE ACTIVE GROWING
SEASON ZONES. CONSIDERING THE HIGH UNCERTAINTY OF THE DEPARTING
CLOUD COVER HAVE OPTED TO HOLD OFF ON ANY FREEZE/FROST PRODUCTS
FOR TONIGHT.

COLD AIR WILL REMAIN IN PLACE TUESDAY NIGHT WHILE THE ATMOSPHERE
CONTINUES TO DRY. THUS THERE IS A HIGHER POSSIBILITY OF
FROSTY/FREEZING TEMPERATURES TUESDAY NIGHT INTO WEDNESDAY MORNING.
TEMPERATURES HAVE BEEN TRENDED DOWN CLOSER TO THE GFSBC GUIDANCE
WITH LOWS IN THE 20S TO LOWER 30S ACROSS THE INTERIOR VALLEYS AND
THE MIDDLE TO UPPER 30S NEAR THE COAST.

UPPER LEVEL RIDGING WILL BUILD OVER THE WEST COAST MIDWEEK INTO NEXT
WEEKEND BRINGING A GRADUALLY WARMING TREND AND DRY CONDITIONS TO
NORTHWEST CALIFORNIA. DEPENDING ON WHERE EXACTLY THE UPPER LEVEL
RIDGE SETTLES THERE MAY BE PERIODS OF MARINE LAYER CLOUDINESS BUT
CONFIDENCE IN ANY STRATUS OVER THE WATERS IMPACTING THE COAST IS
CURRENTLY LOW. /RPA


&&

.AVIATION...VFR SHOULD PREVAIL TODAY WITH SOME GUSTY WINDS ALONG
COASTAL LOCATIONS. LIGHT RAIN SHOWERS MAY PERIODICALLY LOWER CEILINGS
THROUGH THE DAY HOWEVER CHANCES ARE SLIGHT WITH MOST OF THE SHOWERS
EXPECTED TO REMAIN OFFSHORE. HIGHER CLOUD COVER ASSOCIATED WITH A
LOW PRESSURE SYSTEM WILL GRADUALLY DECREASE THROUGH THE DAY AS THE
LOW SHIFTS TO THE SOUTH. PATCHY FOG MAY DEVELOP ACROSS INTERIOR
VALLEYS LATE TONIGHT AS RIDGING BUILDS BEHIND THE PASSING LOW.
OTHERWISE VFR SHOULD PREVAIL FOR THE MAJORITY OF THE REGION LATE
TONIGHT. /KML


&&

.MARINE...A PASSING LOW PRESSURE SYSTEM WILL RAMP UP NORTHERLY WINDS
AND CAUSE STEEP SEAS TO BUILD THROUGH THIS AFTERNOON. THE GALES WERE
LEFT UNCHANGED AS THE HIGHEST WINDS, IN ADDITION TO STEEP SEAS, ARE
EXPECTED ACROSS THE OUTER WATERS WITH GUSTS NEAR 40 KT THROUGH THIS
EVENING. LARGE, STEEP SEAS WILL PROPAGATE FROM OFFSHORE TO THE INNER
WATERS THUS HAZARDOUS SEAS WARNINGS WERE ISSUED FOR BOTH OF THE NEAR
SHORE ZONES. THE NORTHERN INNER WATERS BEGAN AT 12Z THIS MORNING AS
BUOY OBSERVATIONS WERE REPORTING 10 TO 11 FT SEAS AROUND 9 SECONDS.
THE SOUTHERN INNER WATERS WILL BEGIN A LITTLE LATER THIS MORNING AS
THERE WILL BE A SLIGHT LAG IN BUILDING SEAS. OCCASIONAL GALE FORCE
GUSTS WILL BE POSSIBLE IN THE NEARSHORE WATERS TODAY ESPECIALLY NEAR
POINT SAINT GEORGE AND CAPE MENDOCINO. THERE WILL BE A POSSIBILITY
THAT A GALE MAY BE NEEDED IF THE GUSTS BECOME MORE FREQUENT,
HOWEVER, THE JET IS FORECAST TO REMAIN FARTHER OFFSHORE ALONG WITH
THE HIGHEST WINDS. THE DIFFICULT ASPECT TO THIS SITUATION IS THE
LACK OF WIND OBSERVATIONS TO VERIFY COASTAL CONDITIONS BUT EITHER
WAY IT IS LOOKING LIKE A CRUMMY DAY OUT ON THE OCEAN. WINDS AND SEAS
WILL BEGIN TO EASE TONIGHT THROUGH TUESDAY AS THE LOW PRESSURE
SYSTEM AND ASSOCIATED JET DIVE SOUTHWARD. CONDITIONS WILL SETTLE
FURTHER LATE IN THE WEEK AS BUILDING HIGH PRESSURE WEAKENS THE
PRESSURE GRADIENT. /KML


&&

.EKA WATCHES/WARNINGS/ADVISORIES...
CA...NONE.
NORTHWEST CALIFORNIA COASTAL WATERS...
     SMALL CRAFT ADVISORY UNTIL 3 AM PST TUESDAY FOR PZZ450.

     HAZARDOUS SEAS WARNING UNTIL 9 PM PST THIS EVENING FOR PZZ450.

     GALE WARNING UNTIL 9 PM PST THIS EVENING FOR PZZ470-475.

     SMALL CRAFT ADVISORY UNTIL 9 PM PST THIS EVENING FOR PZZ455.

     HAZARDOUS SEAS WARNING FROM 9 AM THIS MORNING TO 9 PM PST THIS
     EVENING FOR PZZ455.

&&

$$

VISIT US AT HTTP://WWW.WEATHER.GOV/EUREKA

FOLLOW US ON FACEBOOK AND TWITTER AT:
HTTP://WWW.FACEBOOK.COM/NWSEUREKA
HTTP://WWW.TWITTER.COM/NWSEUREKA





000
FXUS66 KEKA 021233
AFDEKA

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE EUREKA CA
433 AM PST MON MAR 2 2015

.SYNOPSIS...A WEAK SYSTEM WILL BRING A FEW SHOWERS TO NORTHWEST
CALIFORNIA TODAY. UPPER LEVEL RIDGING WILL BEGIN TO DEVELOP OVER
THE WEST COAST ON TUESDAY AND THEN PERSIST INTO THIS COMING
WEEKEND. THE DEVELOPING RIDGE WILL RESULT IN DRY CONDITIONS AND
A GRADUAL WARMING TREND THROUGH THE WEEK.

&&

.DISCUSSION...AN UPPER LEVEL SHORTWAVE IS QUICKLY PASSING THROUGH
NORTHWEST CALIFORNIA THIS MORNING. SHOWERS HAVE INCREASED IN NUMBER
OVER THE COASTAL WATERS AND SOME HAVE MOVED ONSHORE NEAR CAPE
MENDOCINO. THIS TREND SHOULD CONTINUE THROUGH THE MORNING HOURS
UNTIL THE SHORTWAVE PASSES SOUTH OF THE AREA AND WEAK CONVERGENT
FLOW OVER THE MOUNTAINS OF EASTERN MENDOCINO AND SOUTHERN TRINITY
COUNTIES ALLOWS SOME ADDITIONAL SHOWERS TO FORM LATER THIS MORNING
AND AFTERNOON. INSTABILITY NOW APPEARS TO BE QUITE MINIMAL SO
THUNDER HAS BEEN REMOVED FROM THE FORECAST FOR THIS AFTERNOON.

A DRYING TREND WILL RAPIDLY DEVELOP THIS EVENING AS SLIGHTLY DRIER
AIR BEGINS TO MOVE OVER NORTHWEST CALIFORNIA BEHIND THE DEPARTING
UPPER LEVEL SHORTWAVE. HOWEVER...MODEL GUIDANCE INDICATES HIGH
BOUNDARY LAYER MOISTURE MAY ALLOW A SIGNIFICANT NUMBER OF LOW
CLOUDS TO REMAIN ACROSS THE REGION...PARTICULARLY IN THE HUMBOLDT
BAY AREA AND MENDOCINO COUNTY. THIS CLOUD COVER MAY ACTUALLY
DECREASE IN COVERAGE OVERNIGHT ALLOWING TEMPERATURES TO EVENTUALLY
FALL POSSIBLY TO FROST/FREEZE CRITERIA IN THE ACTIVE GROWING
SEASON ZONES. CONSIDERING THE HIGH UNCERTAINTY OF THE DEPARTING
CLOUD COVER HAVE OPTED TO HOLD OFF ON ANY FREEZE/FROST PRODUCTS
FOR TONIGHT.

COLD AIR WILL REMAIN IN PLACE TUESDAY NIGHT WHILE THE ATMOSPHERE
CONTINUES TO DRY. THUS THERE IS A HIGHER POSSIBILITY OF
FROSTY/FREEZING TEMPERATURES TUESDAY NIGHT INTO WEDNESDAY MORNING.
TEMPERATURES HAVE BEEN TRENDED DOWN CLOSER TO THE GFSBC GUIDANCE
WITH LOWS IN THE 20S TO LOWER 30S ACROSS THE INTERIOR VALLEYS AND
THE MIDDLE TO UPPER 30S NEAR THE COAST.

UPPER LEVEL RIDGING WILL BUILD OVER THE WEST COAST MIDWEEK INTO NEXT
WEEKEND BRINGING A GRADUALLY WARMING TREND AND DRY CONDITIONS TO
NORTHWEST CALIFORNIA. DEPENDING ON WHERE EXACTLY THE UPPER LEVEL
RIDGE SETTLES THERE MAY BE PERIODS OF MARINE LAYER CLOUDINESS BUT
CONFIDENCE IN ANY STRATUS OVER THE WATERS IMPACTING THE COAST IS
CURRENTLY LOW. /RPA


&&

.AVIATION...VFR SHOULD PREVAIL TODAY WITH SOME GUSTY WINDS ALONG
COASTAL LOCATIONS. LIGHT RAIN SHOWERS MAY PERIODICALLY LOWER CEILINGS
THROUGH THE DAY HOWEVER CHANCES ARE SLIGHT WITH MOST OF THE SHOWERS
EXPECTED TO REMAIN OFFSHORE. HIGHER CLOUD COVER ASSOCIATED WITH A
LOW PRESSURE SYSTEM WILL GRADUALLY DECREASE THROUGH THE DAY AS THE
LOW SHIFTS TO THE SOUTH. PATCHY FOG MAY DEVELOP ACROSS INTERIOR
VALLEYS LATE TONIGHT AS RIDGING BUILDS BEHIND THE PASSING LOW.
OTHERWISE VFR SHOULD PREVAIL FOR THE MAJORITY OF THE REGION LATE
TONIGHT. /KML


&&

.MARINE...A PASSING LOW PRESSURE SYSTEM WILL RAMP UP NORTHERLY WINDS
AND CAUSE STEEP SEAS TO BUILD THROUGH THIS AFTERNOON. THE GALES WERE
LEFT UNCHANGED AS THE HIGHEST WINDS, IN ADDITION TO STEEP SEAS, ARE
EXPECTED ACROSS THE OUTER WATERS WITH GUSTS NEAR 40 KT THROUGH THIS
EVENING. LARGE, STEEP SEAS WILL PROPAGATE FROM OFFSHORE TO THE INNER
WATERS THUS HAZARDOUS SEAS WARNINGS WERE ISSUED FOR BOTH OF THE NEAR
SHORE ZONES. THE NORTHERN INNER WATERS BEGAN AT 12Z THIS MORNING AS
BUOY OBSERVATIONS WERE REPORTING 10 TO 11 FT SEAS AROUND 9 SECONDS.
THE SOUTHERN INNER WATERS WILL BEGIN A LITTLE LATER THIS MORNING AS
THERE WILL BE A SLIGHT LAG IN BUILDING SEAS. OCCASIONAL GALE FORCE
GUSTS WILL BE POSSIBLE IN THE NEARSHORE WATERS TODAY ESPECIALLY NEAR
POINT SAINT GEORGE AND CAPE MENDOCINO. THERE WILL BE A POSSIBILITY
THAT A GALE MAY BE NEEDED IF THE GUSTS BECOME MORE FREQUENT,
HOWEVER, THE JET IS FORECAST TO REMAIN FARTHER OFFSHORE ALONG WITH
THE HIGHEST WINDS. THE DIFFICULT ASPECT TO THIS SITUATION IS THE
LACK OF WIND OBSERVATIONS TO VERIFY COASTAL CONDITIONS BUT EITHER
WAY IT IS LOOKING LIKE A CRUMMY DAY OUT ON THE OCEAN. WINDS AND SEAS
WILL BEGIN TO EASE TONIGHT THROUGH TUESDAY AS THE LOW PRESSURE
SYSTEM AND ASSOCIATED JET DIVE SOUTHWARD. CONDITIONS WILL SETTLE
FURTHER LATE IN THE WEEK AS BUILDING HIGH PRESSURE WEAKENS THE
PRESSURE GRADIENT. /KML


&&

.EKA WATCHES/WARNINGS/ADVISORIES...
CA...NONE.
NORTHWEST CALIFORNIA COASTAL WATERS...
     SMALL CRAFT ADVISORY UNTIL 3 AM PST TUESDAY FOR PZZ450.

     HAZARDOUS SEAS WARNING UNTIL 9 PM PST THIS EVENING FOR PZZ450.

     GALE WARNING UNTIL 9 PM PST THIS EVENING FOR PZZ470-475.

     SMALL CRAFT ADVISORY UNTIL 9 PM PST THIS EVENING FOR PZZ455.

     HAZARDOUS SEAS WARNING FROM 9 AM THIS MORNING TO 9 PM PST THIS
     EVENING FOR PZZ455.

&&

$$

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