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000
FXUS66 KSGX 241626
AFDSGX

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN DIEGO CA
925 AM PDT THU APR 24 2014

.SYNOPSIS...
FAIR TODAY...WITH VARIABLE HIGH CLOUDS AND SEASONAL TEMPERATURES.
MARINE LAYER CLOUDS AND FOG RETURN TO THE COASTAL AREAS TONIGHT INTO
FRIDAY MORNING. A STRONG LOW PRESSURE TROUGH WILL MOVE ACROSS
SOUTHERN CALIFORNIA LATE FRIDAY INTO SATURDAY...BRINGING SCATTERED
SHOWERS WITH MUCH LOWER TEMPERATURES AND SOME LIGHT SNOW IN THE HIGH
MOUNTAINS. THE TROUGH WILL ALSO PRODUCE GUSTY WEST WINDS IN THE
MOUNTAINS AND DESERTS. A RIDGE OF HIGH PRESSURE BUILDING OVER THE
WEST WILL BRING MUCH WARMER WEATHER NEXT WEEK. PERIODS OF OFFSHORE
WINDS WILL BE POSSIBLE AT TIMES DURING THE MIDDLE OF NEXT WEEK.

&&

.DISCUSSION...FOR EXTREME SOUTHWESTERN CALIFORNIA INCLUDING ORANGE...
SAN DIEGO...WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO
COUNTIES...

FAIR SKIES THIS MORNING WITH VARIABLE HIGH CLOUDS AND SMALL PATCHES
OF LOW CLOUDS OFF THE SAN DIEGO COUNTY COAST. THE MORNING SOUNDING
SHOWS LITTLE IN THE WAY OF A MARINE LAYER...WITH A VERY WEAK
INVERSION AT ABOUT 1800 FT. EXPECT TEMPERATURES THIS AFTERNOON
MOSTLY IN THE 60S AT THE COAST AND 70S TO LOW 80S ACROSS THE INLAND
VALLEYS.

LOW CLOUDS AND FOG WILL LIKELY RETURN TO THE COASTAL AREAS AND
WESTERN PORTIONS OF THE INLAND VALLEYS TONIGHT INTO FRI MORNING...AS
ONSHORE FLOW STRENGTHENS AND A COASTAL EDDY FORMS AHEAD OF A LOW
PRESSURE TROUGH APPROACHING FROM THE NW. THE LOW CLOUDS AND FOG
SHOULD BURN OFF BY LATE MORNING...BUT DAYTIME TEMPS WILL BE MOSTLY
IN THE 60S TO LOW 70S WEST OF THE MTNS.

THE DEEPENING LOW PRESSURE TROUGH WILL MOVE THROUGH SOCAL BETWEEN
FRI EVENING AND SAT MORNING. IT WILL BRING STRONG WINDS TO THE
MOUNTAINS...DESERTS AND COASTAL WATERS FRIDAY AFTERNOON AND
NIGHT...DECREASING SOMEWHAT THROUGH SATURDAY EVENING. IN THE MTNS
AND ON ADJACENT DESERT SLOPES...WIND GUSTS OF 45 TO 60 MPH ARE
LIKELY WITH OCCASIONAL GUSTS OF 75 TO 80 MPH IN THE MORE WIND-PRONE
AREAS. THE WINDS WILL BE STRONGEST FRI EVENING INTO FRI NIGHT.
BLOWING DUST AND SAND WILL BE POSSIBLE IN THE DESERTS. THE TROUGH
WILL ALSO BRING SHOWERS...MOSTLY OVER AND WEST OF THE MTNS. SHOWERS
SHOULD BEGIN MOVING IN FRI EVENING AND CONTINUE THROUGH SAT
MORNING...THEN TAPER OFF SAT AFTERNOON. MOST OF THE PRECIP IS
EXPECTED FRI NIGHT WITH TOTALS OF LESS THAN 0.25 INCH FOR MOST
LOCATIONS WEST OF THE MTNS. THE STRONG SW TO W WINDS WILL RESULT IN
STRONG OROGRAPHIC ENHANCEMENT...AND SOME AREAS ALONG THE COASTAL MTN
SLOPES COULD GET BETWEEN 0.50 AND 0.75 INCH OF RAIN. THE SNOW LEVEL
IS EXPECTED TO LOWER TO BETWEEN 5000 AND 5500 FT SAT MORNING...AND A
FEW INCHES OF SNOW COULD ACCUMULATE ABOVE 5500 FT WITH UP TO 4
INCHES POSSIBLE AT THE HIGHEST PEAKS OF THE SAN BERNARDINO AND SAN
JACINTO MTNS. THE COLD AIR MOVING IN ALOFT ON SAT MORNING COULD
RESULT IN ENOUGH INSTABILITY FOR ISOLATED TSTMS...BUT THEY WILL
LIKELY BE ISOLATED AND LIMITED TO AREAS NORTH OF SAN DIEGO COUNTY.
THE SYSTEM MOVES QUICKLY EAST ON SAT AFTERNOON...BUT TEMPS WEST OF
THE MTNS WILL REMAIN IN THE 60S.

A HIGH PRESSURE RIDGE GRADUALLY BUILDS IN FROM THE WEST NEXT WEEK
AND ANY MARINE LAYER WILL BE SHALLOW AND HAVE TROUBLE SPREADING
INLAND. SO EXPECT FAIR WEATHER WITH A WARMING TREND SUNDAY AND
MONDAY. AS THIS RIDGE OF HIGH PRESSURE AMPLIFIES ALONG THE WEST
COAST...A COLD SFC HIGH OVER THE INTER-MOUNTAIN WEST WILL BRING
PERIODS OF OFFSHORE FLOW. THIS WILL INCREASE TEMPS IN OUR REGION
TUESDAY AND WEDNESDAY. 90S WILL BE COMMON AT LOWER ELEVATIONS AND
EVEN 80S NEAR THE COAST.

&&

.AVIATION...
241500Z...COAST/VALLEYS...SCT-LOCALLY BKN CIGS 1000-1500 FT MSL ARE
POSSIBLE NEAR THE SOUTHERN SAN DIEGO COUNTY COAST THIS MORNING BUT
SHOULD REMAIN OUT OF THE COASTAL TAF SITES. OTHERWISE...MOSTLY CLEAR
SKIES WITH UNRESTRICTED VIS AND SCT CIRRUS AOA 20K FT THROUGH 00Z
THIS AFTERNOON. MVFR CIGS EXPECTED TO REFORM ALONG THE COASTAL STRIP
02Z-05Z THIS EVENING AND SPREAD INLAND OVERNIGHT. EXTENT SHOULD BE
FAR ENOUGH INLAND TO IMPACT KONT FOR A FEW HOURS EARLY FRIDAY
MORNING. EXPECT LITTLE IN THE WAY OF CLEARING OF LOW CLOUDS AT THE
COAST BEFORE MORE WIDESPREAD CLOUD COVER MOVES IN AHEAD OF THE
APPROACHING TROUGH FRIDAY AFTERNOON.

MTNS/DESERTS...SCT CLOUDS AOA 20K FT WITH UNRESTRICTED VIS THROUGH
FRIDAY MORNING.

&&

.MARINE...
NO MARINE ISSUES THROUGH MIDDAY FRIDAY.

FRI AFTERNOON THROUGH SAT...20-30 KT WINDS WILL DEVELOP OVER THE
COASTAL WATERS...ACCOMPANIED BY A STEEP WNW SWELL. WINDS COULD GUST
TO GALE FORCE BRIEFLY SAT MORNING. CONFIDENCE IS HIGH THIS WILL
GENERATE TEN FOOT OR GREATER SEAS AND CONDITIONS HAZARDOUS FOR SMALL
CRAFT DURING THIS PERIOD.

A 3-4 FT LONG-PERIOD SOUTH SWELL THIS WEEKEND MAY PRODUCE HIGH SURF
CONDITIONS WITH SETS OF 7 TO 8 FT ALONG FAVORED SOUTH-FACING BEACHES
OF ORANGE COUNTY SAT-SUN. SLIGHTLY LOWER SURF FOR SAN DIEGO COUNTY
BEACHES...HOWEVER STRONG LONGSHORE AND RIP CURRENTS ARE LIKELY.

&&

.SKYWARN...
SKYWARN ACTIVATION IS NOT REQUESTED. HOWEVER WEATHER SPOTTERS ARE
ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS.

&&

.SGX WATCHES/WARNINGS/ADVISORIES...NONE.

&&

$$

PUBLIC...PG
AVIATION/MARINE...TS






000
FXUS66 KSGX 241626
AFDSGX

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN DIEGO CA
925 AM PDT THU APR 24 2014

.SYNOPSIS...
FAIR TODAY...WITH VARIABLE HIGH CLOUDS AND SEASONAL TEMPERATURES.
MARINE LAYER CLOUDS AND FOG RETURN TO THE COASTAL AREAS TONIGHT INTO
FRIDAY MORNING. A STRONG LOW PRESSURE TROUGH WILL MOVE ACROSS
SOUTHERN CALIFORNIA LATE FRIDAY INTO SATURDAY...BRINGING SCATTERED
SHOWERS WITH MUCH LOWER TEMPERATURES AND SOME LIGHT SNOW IN THE HIGH
MOUNTAINS. THE TROUGH WILL ALSO PRODUCE GUSTY WEST WINDS IN THE
MOUNTAINS AND DESERTS. A RIDGE OF HIGH PRESSURE BUILDING OVER THE
WEST WILL BRING MUCH WARMER WEATHER NEXT WEEK. PERIODS OF OFFSHORE
WINDS WILL BE POSSIBLE AT TIMES DURING THE MIDDLE OF NEXT WEEK.

&&

.DISCUSSION...FOR EXTREME SOUTHWESTERN CALIFORNIA INCLUDING ORANGE...
SAN DIEGO...WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO
COUNTIES...

FAIR SKIES THIS MORNING WITH VARIABLE HIGH CLOUDS AND SMALL PATCHES
OF LOW CLOUDS OFF THE SAN DIEGO COUNTY COAST. THE MORNING SOUNDING
SHOWS LITTLE IN THE WAY OF A MARINE LAYER...WITH A VERY WEAK
INVERSION AT ABOUT 1800 FT. EXPECT TEMPERATURES THIS AFTERNOON
MOSTLY IN THE 60S AT THE COAST AND 70S TO LOW 80S ACROSS THE INLAND
VALLEYS.

LOW CLOUDS AND FOG WILL LIKELY RETURN TO THE COASTAL AREAS AND
WESTERN PORTIONS OF THE INLAND VALLEYS TONIGHT INTO FRI MORNING...AS
ONSHORE FLOW STRENGTHENS AND A COASTAL EDDY FORMS AHEAD OF A LOW
PRESSURE TROUGH APPROACHING FROM THE NW. THE LOW CLOUDS AND FOG
SHOULD BURN OFF BY LATE MORNING...BUT DAYTIME TEMPS WILL BE MOSTLY
IN THE 60S TO LOW 70S WEST OF THE MTNS.

THE DEEPENING LOW PRESSURE TROUGH WILL MOVE THROUGH SOCAL BETWEEN
FRI EVENING AND SAT MORNING. IT WILL BRING STRONG WINDS TO THE
MOUNTAINS...DESERTS AND COASTAL WATERS FRIDAY AFTERNOON AND
NIGHT...DECREASING SOMEWHAT THROUGH SATURDAY EVENING. IN THE MTNS
AND ON ADJACENT DESERT SLOPES...WIND GUSTS OF 45 TO 60 MPH ARE
LIKELY WITH OCCASIONAL GUSTS OF 75 TO 80 MPH IN THE MORE WIND-PRONE
AREAS. THE WINDS WILL BE STRONGEST FRI EVENING INTO FRI NIGHT.
BLOWING DUST AND SAND WILL BE POSSIBLE IN THE DESERTS. THE TROUGH
WILL ALSO BRING SHOWERS...MOSTLY OVER AND WEST OF THE MTNS. SHOWERS
SHOULD BEGIN MOVING IN FRI EVENING AND CONTINUE THROUGH SAT
MORNING...THEN TAPER OFF SAT AFTERNOON. MOST OF THE PRECIP IS
EXPECTED FRI NIGHT WITH TOTALS OF LESS THAN 0.25 INCH FOR MOST
LOCATIONS WEST OF THE MTNS. THE STRONG SW TO W WINDS WILL RESULT IN
STRONG OROGRAPHIC ENHANCEMENT...AND SOME AREAS ALONG THE COASTAL MTN
SLOPES COULD GET BETWEEN 0.50 AND 0.75 INCH OF RAIN. THE SNOW LEVEL
IS EXPECTED TO LOWER TO BETWEEN 5000 AND 5500 FT SAT MORNING...AND A
FEW INCHES OF SNOW COULD ACCUMULATE ABOVE 5500 FT WITH UP TO 4
INCHES POSSIBLE AT THE HIGHEST PEAKS OF THE SAN BERNARDINO AND SAN
JACINTO MTNS. THE COLD AIR MOVING IN ALOFT ON SAT MORNING COULD
RESULT IN ENOUGH INSTABILITY FOR ISOLATED TSTMS...BUT THEY WILL
LIKELY BE ISOLATED AND LIMITED TO AREAS NORTH OF SAN DIEGO COUNTY.
THE SYSTEM MOVES QUICKLY EAST ON SAT AFTERNOON...BUT TEMPS WEST OF
THE MTNS WILL REMAIN IN THE 60S.

A HIGH PRESSURE RIDGE GRADUALLY BUILDS IN FROM THE WEST NEXT WEEK
AND ANY MARINE LAYER WILL BE SHALLOW AND HAVE TROUBLE SPREADING
INLAND. SO EXPECT FAIR WEATHER WITH A WARMING TREND SUNDAY AND
MONDAY. AS THIS RIDGE OF HIGH PRESSURE AMPLIFIES ALONG THE WEST
COAST...A COLD SFC HIGH OVER THE INTER-MOUNTAIN WEST WILL BRING
PERIODS OF OFFSHORE FLOW. THIS WILL INCREASE TEMPS IN OUR REGION
TUESDAY AND WEDNESDAY. 90S WILL BE COMMON AT LOWER ELEVATIONS AND
EVEN 80S NEAR THE COAST.

&&

.AVIATION...
241500Z...COAST/VALLEYS...SCT-LOCALLY BKN CIGS 1000-1500 FT MSL ARE
POSSIBLE NEAR THE SOUTHERN SAN DIEGO COUNTY COAST THIS MORNING BUT
SHOULD REMAIN OUT OF THE COASTAL TAF SITES. OTHERWISE...MOSTLY CLEAR
SKIES WITH UNRESTRICTED VIS AND SCT CIRRUS AOA 20K FT THROUGH 00Z
THIS AFTERNOON. MVFR CIGS EXPECTED TO REFORM ALONG THE COASTAL STRIP
02Z-05Z THIS EVENING AND SPREAD INLAND OVERNIGHT. EXTENT SHOULD BE
FAR ENOUGH INLAND TO IMPACT KONT FOR A FEW HOURS EARLY FRIDAY
MORNING. EXPECT LITTLE IN THE WAY OF CLEARING OF LOW CLOUDS AT THE
COAST BEFORE MORE WIDESPREAD CLOUD COVER MOVES IN AHEAD OF THE
APPROACHING TROUGH FRIDAY AFTERNOON.

MTNS/DESERTS...SCT CLOUDS AOA 20K FT WITH UNRESTRICTED VIS THROUGH
FRIDAY MORNING.

&&

.MARINE...
NO MARINE ISSUES THROUGH MIDDAY FRIDAY.

FRI AFTERNOON THROUGH SAT...20-30 KT WINDS WILL DEVELOP OVER THE
COASTAL WATERS...ACCOMPANIED BY A STEEP WNW SWELL. WINDS COULD GUST
TO GALE FORCE BRIEFLY SAT MORNING. CONFIDENCE IS HIGH THIS WILL
GENERATE TEN FOOT OR GREATER SEAS AND CONDITIONS HAZARDOUS FOR SMALL
CRAFT DURING THIS PERIOD.

A 3-4 FT LONG-PERIOD SOUTH SWELL THIS WEEKEND MAY PRODUCE HIGH SURF
CONDITIONS WITH SETS OF 7 TO 8 FT ALONG FAVORED SOUTH-FACING BEACHES
OF ORANGE COUNTY SAT-SUN. SLIGHTLY LOWER SURF FOR SAN DIEGO COUNTY
BEACHES...HOWEVER STRONG LONGSHORE AND RIP CURRENTS ARE LIKELY.

&&

.SKYWARN...
SKYWARN ACTIVATION IS NOT REQUESTED. HOWEVER WEATHER SPOTTERS ARE
ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS.

&&

.SGX WATCHES/WARNINGS/ADVISORIES...NONE.

&&

$$

PUBLIC...PG
AVIATION/MARINE...TS







000
FXUS66 KSGX 240951
AFDSGX

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN DIEGO CA
300 AM PDT THU APR 24 2014

.SYNOPSIS...
WEAK HIGH PRESSURE ALOFT WILL BRING FAIR WEATHER TODAY. A
STRONG...COLD LOW PRESSURE TROUGH WILL MOVE ACROSS SOUTHERN
CALIFORNIA FRIDAY AND SATURDAY WITH SCATTERED SHOWERS AND GUSTY WEST
WINDS IN THE MOUNTAINS AND DESERTS. A RIDGE OF HIGH PRESSURE
BUILDING OVER THE WEST WILL BRING MUCH WARMER WEATHER NEXT WEEK.

&&

.DISCUSSION...FOR EXTREME SOUTHWESTERN CALIFORNIA INCLUDING ORANGE...
SAN DIEGO...WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO
COUNTIES...

HARD TO FIND ANY CLOUDS THIS MORNING. A FEW COASTAL CLOUDS COULD
FORM BY SUNRISE...BUT WEAK HIGH PRESSURE ALOFT WILL GIVE US ANOTHER
BEAUTIFUL DAY TODAY. THAT WILL ALL COME CRASHING DOWN FRIDAY. A
DEEPENING LOW PRESSURE TROUGH OVER THE PACIFIC WILL TAKE AIM AT
SOUTHERN CALIFORNIA FRIDAY AND MOVE THROUGH THE REGION FRIDAY NIGHT
AND SATURDAY MORNING. IT WILL BRING STRONG WINDS TO THE
MOUNTAINS...DESERTS AND COASTAL WATERS FRIDAY AFTERNOON AND
NIGHT...WITH A LITTLE DECREASE THROUGH SATURDAY EVENING. GUSTS WILL
REACH 40 TO 60 MPH IN THE WIND PRONE AREAS AND BLOWING DUST IS QUITE
PROBABLE IN PARTS OF THE DESERT. MOSTLY LIGHT SHOWERS WILL ALSO COME
ALTHOUGH MOISTURE IS QUITE LIMITED. THE CHANCE OF SHOWERS WILL OCCUR
BETWEEN ABOUT 4 PM FRIDAY AND 10 AM SATURDAY. THE STRONG WINDS AT
MOUNTAIN LEVEL WILL ENHANCE THE RAINFALL ON COASTAL MOUNTAIN SLOPES.
LESS THAN 0.25 INCH IS EXPECTED OVERALL...BUT A COUPLE MOUNTAIN
SPOTS COULD REACH 0.75 INCH. SNOW WILL FALL ABOVE 5500 FEET AND AN
INCH OR TWO COULD ACCUMULATE ABOVE 6000 FEET. HARDLY WORTH
MENTIONING...BUT NOT OUT OF THE QUESTION...ARE ISOLATED
THUNDERSTORMS FRIDAY NIGHT. THE SYSTEM SCOOTS OUT EAST SATURDAY
LEAVING QUITE A COOL DAY WITH ONLY 60S IN THE COASTAL BASIN. HIGH
PRESSURE ALOFT BUILDS GRADUALLY NEXT WEEK AND ANY ORGANIZED MARINE
LAYER WILL HAVE TROUBLE FORMING. SO EXPECT REALLY NICE WEATHER WITH
A WARMING TREND SUNDAY AND MONDAY. AS THIS RIDGE OF HIGH PRESSURE
AMPLIFIES ALONG THE WEST COAST...A COLD AIR MASS OVER THE ROCKIES
WILL SEND SOME OFFSHORE FLOW OUR WAY. THIS WILL BOOST MAX TEMPS IN
OUR REGION TUESDAY AND WEDNESDAY. 90S WILL BE COMMON AT LOWER
ELEVATIONS AND EVEN 80S AT THE COAST. IT WILL BE HARD TO FIND CLOUDS
THEN TOO.

&&

.AVIATION...
240800Z...COAST/VALLEYS...MOSTLY CLEAR SKIES WITH UNRESTRICTED VIS
THROUGH 00Z THIS AFTERNOON...EXCEPT 12Z-16Z SCT-LCLLY BKN CIGS
1-1.5K FT MSL NEAR THE COAST...AND PATCHY GROUND FOG IN SOME OF THE
VALLEYS INCLUDING KRNM. LOW CONFIDENCE FOR TIMING OR DURATION OF
CIGS AT KSAN...IF ANY THIS MORNING. MVFR CIGS EXPECTED TO REFORM
ALONG THE COASTAL STRIP 00Z-03Z THIS EVENING AND SPREAD INLAND
OVERNIGHT.

MTNS/DESERTS...SCT CLOUDS AOA FL200 WITH UNRESTRICTED VIS THROUGH
TONIGHT.

&&

.MARINE...

NO MARINE ISSUES THROUGH MIDDAY FRIDAY.

FRI AFTERNOON THROUGH SAT...20-30 KT WINDS ARE LIKELY TO DEVELOP
OVER THE COASTAL WATERS...ACCOMPANIED BY A STEEP WNW SWELL. WINDS
COULD GUST TO GALE FORCE BRIEFLY SAT MORNING. CONFIDENCE IS HIGH
THIS WILL GENERATE TEN FOOT OR GREATER SEAS AND CONDITIONS HAZARDOUS
FOR SMALL CRAFT DURING THIS PERIOD.

A 3-4 FT LONG-PERIOD SOUTH SWELL THIS WEEKEND MAY PRODUCE HIGH SURF
CONDITIONS WITH SETS OF 7 TO 8 FT ALONG FAVORED SOUTH-FACING BEACHES
OF ORANGE COUNTY SAT-SUN. SLIGHTLY LOWER SURF FOR SAN DIEGO COUNTY
BEACHES...HOWEVER STRONG LONGSHORE AND RIP CURRENTS ARE LIKELY.

&&

.SKYWARN...
SKYWARN ACTIVATION IS NOT REQUESTED. HOWEVER WEATHER SPOTTERS ARE
ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS.

&&

.SGX WATCHES/WARNINGS/ADVISORIES...NONE.

&&

$$

PUBLIC...MM
AVIATION/MARINE...JAD






000
FXUS66 KSGX 240951
AFDSGX

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN DIEGO CA
300 AM PDT THU APR 24 2014

.SYNOPSIS...
WEAK HIGH PRESSURE ALOFT WILL BRING FAIR WEATHER TODAY. A
STRONG...COLD LOW PRESSURE TROUGH WILL MOVE ACROSS SOUTHERN
CALIFORNIA FRIDAY AND SATURDAY WITH SCATTERED SHOWERS AND GUSTY WEST
WINDS IN THE MOUNTAINS AND DESERTS. A RIDGE OF HIGH PRESSURE
BUILDING OVER THE WEST WILL BRING MUCH WARMER WEATHER NEXT WEEK.

&&

.DISCUSSION...FOR EXTREME SOUTHWESTERN CALIFORNIA INCLUDING ORANGE...
SAN DIEGO...WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO
COUNTIES...

HARD TO FIND ANY CLOUDS THIS MORNING. A FEW COASTAL CLOUDS COULD
FORM BY SUNRISE...BUT WEAK HIGH PRESSURE ALOFT WILL GIVE US ANOTHER
BEAUTIFUL DAY TODAY. THAT WILL ALL COME CRASHING DOWN FRIDAY. A
DEEPENING LOW PRESSURE TROUGH OVER THE PACIFIC WILL TAKE AIM AT
SOUTHERN CALIFORNIA FRIDAY AND MOVE THROUGH THE REGION FRIDAY NIGHT
AND SATURDAY MORNING. IT WILL BRING STRONG WINDS TO THE
MOUNTAINS...DESERTS AND COASTAL WATERS FRIDAY AFTERNOON AND
NIGHT...WITH A LITTLE DECREASE THROUGH SATURDAY EVENING. GUSTS WILL
REACH 40 TO 60 MPH IN THE WIND PRONE AREAS AND BLOWING DUST IS QUITE
PROBABLE IN PARTS OF THE DESERT. MOSTLY LIGHT SHOWERS WILL ALSO COME
ALTHOUGH MOISTURE IS QUITE LIMITED. THE CHANCE OF SHOWERS WILL OCCUR
BETWEEN ABOUT 4 PM FRIDAY AND 10 AM SATURDAY. THE STRONG WINDS AT
MOUNTAIN LEVEL WILL ENHANCE THE RAINFALL ON COASTAL MOUNTAIN SLOPES.
LESS THAN 0.25 INCH IS EXPECTED OVERALL...BUT A COUPLE MOUNTAIN
SPOTS COULD REACH 0.75 INCH. SNOW WILL FALL ABOVE 5500 FEET AND AN
INCH OR TWO COULD ACCUMULATE ABOVE 6000 FEET. HARDLY WORTH
MENTIONING...BUT NOT OUT OF THE QUESTION...ARE ISOLATED
THUNDERSTORMS FRIDAY NIGHT. THE SYSTEM SCOOTS OUT EAST SATURDAY
LEAVING QUITE A COOL DAY WITH ONLY 60S IN THE COASTAL BASIN. HIGH
PRESSURE ALOFT BUILDS GRADUALLY NEXT WEEK AND ANY ORGANIZED MARINE
LAYER WILL HAVE TROUBLE FORMING. SO EXPECT REALLY NICE WEATHER WITH
A WARMING TREND SUNDAY AND MONDAY. AS THIS RIDGE OF HIGH PRESSURE
AMPLIFIES ALONG THE WEST COAST...A COLD AIR MASS OVER THE ROCKIES
WILL SEND SOME OFFSHORE FLOW OUR WAY. THIS WILL BOOST MAX TEMPS IN
OUR REGION TUESDAY AND WEDNESDAY. 90S WILL BE COMMON AT LOWER
ELEVATIONS AND EVEN 80S AT THE COAST. IT WILL BE HARD TO FIND CLOUDS
THEN TOO.

&&

.AVIATION...
240800Z...COAST/VALLEYS...MOSTLY CLEAR SKIES WITH UNRESTRICTED VIS
THROUGH 00Z THIS AFTERNOON...EXCEPT 12Z-16Z SCT-LCLLY BKN CIGS
1-1.5K FT MSL NEAR THE COAST...AND PATCHY GROUND FOG IN SOME OF THE
VALLEYS INCLUDING KRNM. LOW CONFIDENCE FOR TIMING OR DURATION OF
CIGS AT KSAN...IF ANY THIS MORNING. MVFR CIGS EXPECTED TO REFORM
ALONG THE COASTAL STRIP 00Z-03Z THIS EVENING AND SPREAD INLAND
OVERNIGHT.

MTNS/DESERTS...SCT CLOUDS AOA FL200 WITH UNRESTRICTED VIS THROUGH
TONIGHT.

&&

.MARINE...

NO MARINE ISSUES THROUGH MIDDAY FRIDAY.

FRI AFTERNOON THROUGH SAT...20-30 KT WINDS ARE LIKELY TO DEVELOP
OVER THE COASTAL WATERS...ACCOMPANIED BY A STEEP WNW SWELL. WINDS
COULD GUST TO GALE FORCE BRIEFLY SAT MORNING. CONFIDENCE IS HIGH
THIS WILL GENERATE TEN FOOT OR GREATER SEAS AND CONDITIONS HAZARDOUS
FOR SMALL CRAFT DURING THIS PERIOD.

A 3-4 FT LONG-PERIOD SOUTH SWELL THIS WEEKEND MAY PRODUCE HIGH SURF
CONDITIONS WITH SETS OF 7 TO 8 FT ALONG FAVORED SOUTH-FACING BEACHES
OF ORANGE COUNTY SAT-SUN. SLIGHTLY LOWER SURF FOR SAN DIEGO COUNTY
BEACHES...HOWEVER STRONG LONGSHORE AND RIP CURRENTS ARE LIKELY.

&&

.SKYWARN...
SKYWARN ACTIVATION IS NOT REQUESTED. HOWEVER WEATHER SPOTTERS ARE
ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS.

&&

.SGX WATCHES/WARNINGS/ADVISORIES...NONE.

&&

$$

PUBLIC...MM
AVIATION/MARINE...JAD







000
FXUS66 KSGX 240411
AFDSGX

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN DIEGO CA
915 PM PDT WED APR 23 2014

.SYNOPSIS...
WEAK HIGH PRESSURE ALOFT WILL BRING FAIR WEATHER THURSDAY. A
STRONG...COLD LOW PRESSURE SYSTEM WILL MOVE ACROSS SOUTHERN
CALIFORNIA FRIDAY AND SATURDAY SCATTERED SHOWERS ALONG AND WEST OF
THE MOUNTAINS AND GUSTY WEST WINDS IN THE MOUNTAINS AND DESERTS.
A RIDGE OF HIGH PRESSURE BUILDING OVER THE WEST WILL BRING
MUCH WARMER WEATHER NEXT WEEK.

&&

.DISCUSSION...FOR EXTREME SOUTHWESTERN CALIFORNIA INCLUDING ORANGE...
SAN DIEGO...WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO
COUNTIES...

A FEW HIGH CLOUDS WERE MOVING OVER THE REGION THIS
EVENING...OTHERWISE SKIES WERE CLEAR. NO SIGN OF MARINE
STRATUS...THOUGH A FEW PATCHES MAY DEVELOP OVER THE COASTAL WATERS
LATE TONIGHT AS A COASTAL EDDY SPINS UP. FAIR WEATHER THURSDAY WITH
HIGH TEMPS NEAR TO SLIGHTLY ABOVE SEASONAL AVERAGES.

A LARGE AND COLD UPPER LEVEL TROUGH BEGINS TO DIG OFF THE WEST COAST
AS IT PROGRESSES EASTWARD ON FRIDAY. THIS WILL BRING COOLING WITH A
RETURN OF COASTAL LOW CLOUDS AND FOG ON FRIDAY. GUSTY SOUTHWEST TO
WEST WINDS WILL DEVELOP OVER THE MOUNTAINS AND DESERTS FRIDAY
AFTERNOON AND EVENING...PEAKING FRIDAY NIGHT WITH GUSTS 40 TO 60
MPH. A FEW LIGHT SHOWERS ARE POSSIBLE FRIDAY AFTERNOON...MAINLY
ALONG THE COASTAL SLOPES OF THE MOUNTAINS.

THE TROUGH AXIS SWINGS THROUGH SOUTHERN CA LATE FRIDAY INTO EARLY
SAT. THERE ARE STILL SOME MINOR DIFFERENCES IN MODEL SOLUTIONS
REGARDING THE TIMING AND TRACK OF THE TROUGH. THE GFS...NAM...AND
UKMET ARE ALL SLIGHTLY FASTER AND LESS AMPLIFIED...WHILE THE EC AND
GEM ARE A LITTLE SLOWER...DIG THE TROUGH FURTHER SOUTH...AND FORM A
CLOSED LOW OVER SOUTHERN CA. EITHER SOLUTION WILL RESULT IN RAIN AND
SHOW SHOWERS AND STRONG GUSTY WINDS IN THE MOUNTAINS AND DESERTS.
HOWEVER...THE COLDER AND MORE UNSTABLE EC/GEM SOLUTION WOULD BRING A
GREATER THREAT OF THUNDERSTORMS AND LOWER SNOW LEVELS. AT THIS TIME
HAVE GONE WITH SOMETHING IN BETWEEN.

THE MAJORITY OF THE SHOWERS WILL OCCUR FRIDAY NIGHT INTO SATURDAY
MORNING. COASTAL AND VALLEY LOCATIONS WILL LIKELY SEE LESS THAN
ONE-QUARTER INCH OF RAIN. HOWEVER...STRONG UPSLOPE FLOW ALONG THE
COASTAL MOUNTAIN SLOPES WILL GENERATE RAINFALL TOTALS OF AROUND 0.50
TO 0.75 INCHES...WITH ISOLATED AMOUNTS NEAR ONE INCH ALONG THE
FAVORED WEST FACING SLOPES. SNOW LEVELS WILL LOWER TO AROUND
4500-5500 FT BY SATURDAY MORNING. SKI RESORTS SHOULD SEE AROUND 1-2
INCHES OF SNOW...WITH 2 TO 4 INCHES AT THE HIGHEST PEAKS OF THE SAN
BERNARDINO AND RIVERSIDE COUNTY MOUNTAINS. SHOWERS WILL TAPER OFF BY
SATURDAY AFTERNOON...AND GUSTY WEST WINDS WILL SUBSIDE BY SATURDAY
NIGHT.

AN UPPER LEVEL RIDGE OF HIGH PRESSURE BEGINS TO BUILD ALONG THE WEST
COAST ON SUNDAY AND WILL CONTINUE TO AMPLIFY THROUGH TUESDAY. THIS
WILL BRING A WARMING TREND WITH TEMPS IN THE 80S AND 90S IN THE
LOWER ELEVATIONS AND UPPER 60S AND 70S IN THE MOUNTAINS TUE AND WED.
OTHERWISE FAIR WEATHER WITH PERIODS OF WEAK OFFSHORE FLOW FOR THE
EARLY TO MIDDLE PART OF NEXT WEEK.

&&

.AVIATION...
240300Z...COAST/VALLEYS...MOSTLY CLEAR SKIES WITH SCT CIRRUS THROUGH
EARLY TONIGHT. FEW/SCT LOW CLOUDS MAY RETURN TO THE COAST BY EARLY
THURSDAY MORNING WITH BASES AROUND 1500 FT MSL AND TOPS 1800 FT
MSL...BUT SHOULD NOT AFFECT THE COASTAL AIRPORTS. CONFIDENCE IS
MODERATE. ANY LOW CLOUDS THAT DO FORM WILL DISSIPATE BY MID THURSDAY
MORNING...LEAVING MOSTLY CLEAR SKIES AND UNRESTRICTED VIS. LOW
CLOUDS WITH BASES BETWEEN 1000-1300 FT MSL AND TOPS 1500 FT MSL WILL
FORM ALONG THE COAST AND PUSH INLAND AFT 25/0200Z THURSDAY
EVENING.

MTNS/DESERTS...MOSTLY CLEAR WITH UNRESTRICTED VIS THROUGH THURS
EVENING.

&&

.MARINE...

FRI AFTERNOON THROUGH SAT...20-30 KT WINDS ARE LIKELY TO DEVELOP
OVER THE COASTAL WATERS...ACCOMPANIED BY A STEEP WNW SWELL.
CONFIDENCE IS HIGH THIS WILL GENERATE CONDITIONS HAZARDOUS FOR SMALL
CRAFT DURING THIS PERIOD.

A 4 FT LONG-PERIOD SOUTH SWELL THIS WEEKEND MAY PRODUCE HIGH SURF
CONDITIONS WITH SETS OF 7 TO 8 FT ALONG FAVORED SOUTH-FACING BEACHES
OF ORANGE COUNTY. STRONG LONGSHORE AND RIP CURRENTS ARE LIKELY AT
MANY BEACHES OF SAN DIEGO AND ORANGE COUNTY AS WELL.

&&

.SKYWARN...
SKYWARN ACTIVATION IS NOT REQUESTED. HOWEVER WEATHER SPOTTERS ARE
ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS.

&&

.SGX WATCHES/WARNINGS/ADVISORIES...
CA...NONE.
PZ...NONE.

&&

$$

PUBLIC...SS
AVIATION/MARINE...JT






000
FXUS66 KSGX 240411
AFDSGX

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN DIEGO CA
915 PM PDT WED APR 23 2014

.SYNOPSIS...
WEAK HIGH PRESSURE ALOFT WILL BRING FAIR WEATHER THURSDAY. A
STRONG...COLD LOW PRESSURE SYSTEM WILL MOVE ACROSS SOUTHERN
CALIFORNIA FRIDAY AND SATURDAY SCATTERED SHOWERS ALONG AND WEST OF
THE MOUNTAINS AND GUSTY WEST WINDS IN THE MOUNTAINS AND DESERTS.
A RIDGE OF HIGH PRESSURE BUILDING OVER THE WEST WILL BRING
MUCH WARMER WEATHER NEXT WEEK.

&&

.DISCUSSION...FOR EXTREME SOUTHWESTERN CALIFORNIA INCLUDING ORANGE...
SAN DIEGO...WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO
COUNTIES...

A FEW HIGH CLOUDS WERE MOVING OVER THE REGION THIS
EVENING...OTHERWISE SKIES WERE CLEAR. NO SIGN OF MARINE
STRATUS...THOUGH A FEW PATCHES MAY DEVELOP OVER THE COASTAL WATERS
LATE TONIGHT AS A COASTAL EDDY SPINS UP. FAIR WEATHER THURSDAY WITH
HIGH TEMPS NEAR TO SLIGHTLY ABOVE SEASONAL AVERAGES.

A LARGE AND COLD UPPER LEVEL TROUGH BEGINS TO DIG OFF THE WEST COAST
AS IT PROGRESSES EASTWARD ON FRIDAY. THIS WILL BRING COOLING WITH A
RETURN OF COASTAL LOW CLOUDS AND FOG ON FRIDAY. GUSTY SOUTHWEST TO
WEST WINDS WILL DEVELOP OVER THE MOUNTAINS AND DESERTS FRIDAY
AFTERNOON AND EVENING...PEAKING FRIDAY NIGHT WITH GUSTS 40 TO 60
MPH. A FEW LIGHT SHOWERS ARE POSSIBLE FRIDAY AFTERNOON...MAINLY
ALONG THE COASTAL SLOPES OF THE MOUNTAINS.

THE TROUGH AXIS SWINGS THROUGH SOUTHERN CA LATE FRIDAY INTO EARLY
SAT. THERE ARE STILL SOME MINOR DIFFERENCES IN MODEL SOLUTIONS
REGARDING THE TIMING AND TRACK OF THE TROUGH. THE GFS...NAM...AND
UKMET ARE ALL SLIGHTLY FASTER AND LESS AMPLIFIED...WHILE THE EC AND
GEM ARE A LITTLE SLOWER...DIG THE TROUGH FURTHER SOUTH...AND FORM A
CLOSED LOW OVER SOUTHERN CA. EITHER SOLUTION WILL RESULT IN RAIN AND
SHOW SHOWERS AND STRONG GUSTY WINDS IN THE MOUNTAINS AND DESERTS.
HOWEVER...THE COLDER AND MORE UNSTABLE EC/GEM SOLUTION WOULD BRING A
GREATER THREAT OF THUNDERSTORMS AND LOWER SNOW LEVELS. AT THIS TIME
HAVE GONE WITH SOMETHING IN BETWEEN.

THE MAJORITY OF THE SHOWERS WILL OCCUR FRIDAY NIGHT INTO SATURDAY
MORNING. COASTAL AND VALLEY LOCATIONS WILL LIKELY SEE LESS THAN
ONE-QUARTER INCH OF RAIN. HOWEVER...STRONG UPSLOPE FLOW ALONG THE
COASTAL MOUNTAIN SLOPES WILL GENERATE RAINFALL TOTALS OF AROUND 0.50
TO 0.75 INCHES...WITH ISOLATED AMOUNTS NEAR ONE INCH ALONG THE
FAVORED WEST FACING SLOPES. SNOW LEVELS WILL LOWER TO AROUND
4500-5500 FT BY SATURDAY MORNING. SKI RESORTS SHOULD SEE AROUND 1-2
INCHES OF SNOW...WITH 2 TO 4 INCHES AT THE HIGHEST PEAKS OF THE SAN
BERNARDINO AND RIVERSIDE COUNTY MOUNTAINS. SHOWERS WILL TAPER OFF BY
SATURDAY AFTERNOON...AND GUSTY WEST WINDS WILL SUBSIDE BY SATURDAY
NIGHT.

AN UPPER LEVEL RIDGE OF HIGH PRESSURE BEGINS TO BUILD ALONG THE WEST
COAST ON SUNDAY AND WILL CONTINUE TO AMPLIFY THROUGH TUESDAY. THIS
WILL BRING A WARMING TREND WITH TEMPS IN THE 80S AND 90S IN THE
LOWER ELEVATIONS AND UPPER 60S AND 70S IN THE MOUNTAINS TUE AND WED.
OTHERWISE FAIR WEATHER WITH PERIODS OF WEAK OFFSHORE FLOW FOR THE
EARLY TO MIDDLE PART OF NEXT WEEK.

&&

.AVIATION...
240300Z...COAST/VALLEYS...MOSTLY CLEAR SKIES WITH SCT CIRRUS THROUGH
EARLY TONIGHT. FEW/SCT LOW CLOUDS MAY RETURN TO THE COAST BY EARLY
THURSDAY MORNING WITH BASES AROUND 1500 FT MSL AND TOPS 1800 FT
MSL...BUT SHOULD NOT AFFECT THE COASTAL AIRPORTS. CONFIDENCE IS
MODERATE. ANY LOW CLOUDS THAT DO FORM WILL DISSIPATE BY MID THURSDAY
MORNING...LEAVING MOSTLY CLEAR SKIES AND UNRESTRICTED VIS. LOW
CLOUDS WITH BASES BETWEEN 1000-1300 FT MSL AND TOPS 1500 FT MSL WILL
FORM ALONG THE COAST AND PUSH INLAND AFT 25/0200Z THURSDAY
EVENING.

MTNS/DESERTS...MOSTLY CLEAR WITH UNRESTRICTED VIS THROUGH THURS
EVENING.

&&

.MARINE...

FRI AFTERNOON THROUGH SAT...20-30 KT WINDS ARE LIKELY TO DEVELOP
OVER THE COASTAL WATERS...ACCOMPANIED BY A STEEP WNW SWELL.
CONFIDENCE IS HIGH THIS WILL GENERATE CONDITIONS HAZARDOUS FOR SMALL
CRAFT DURING THIS PERIOD.

A 4 FT LONG-PERIOD SOUTH SWELL THIS WEEKEND MAY PRODUCE HIGH SURF
CONDITIONS WITH SETS OF 7 TO 8 FT ALONG FAVORED SOUTH-FACING BEACHES
OF ORANGE COUNTY. STRONG LONGSHORE AND RIP CURRENTS ARE LIKELY AT
MANY BEACHES OF SAN DIEGO AND ORANGE COUNTY AS WELL.

&&

.SKYWARN...
SKYWARN ACTIVATION IS NOT REQUESTED. HOWEVER WEATHER SPOTTERS ARE
ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS.

&&

.SGX WATCHES/WARNINGS/ADVISORIES...
CA...NONE.
PZ...NONE.

&&

$$

PUBLIC...SS
AVIATION/MARINE...JT







000
FXUS66 KSGX 232134
AFDSGX

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN DIEGO CA
200 PM PDT WED APR 23 2014

.SYNOPSIS...
WEAK HIGH PRESSURE ALOFT WILL BRING SEASONAL WEATHER TONIGHT AND
THURSDAY. A STRONG...COLD LOW PRESSURE TROUGH WILL MOVE ACROSS
SOUTHERN CALIFORNIA FRIDAY AND SATURDAY BRINGING COOL...WINDY
WEATHER AS WELL AS SCATTERED SHOWERS ALONG AND WEST OF THE
MOUNTAINS. A STRONG RIDGE OF HIGH PRESSURE BUILDING OVER THE WEST
WILL BRING MUCH WARMER WEATHER NEXT WEEK.

&&

.DISCUSSION...FOR EXTREME SOUTHWESTERN CALIFORNIA INCLUDING ORANGE...
SAN DIEGO...WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO
COUNTIES...

TRANQUIL WEATHER TONIGHT AND THURSDAY WITH GENERALLY LIGHT WINDS AND
MOSTLY CLEAR SKIES. ANY LATE NIGHT LOW CLOUDS FROM A SHALLOW MARINE
LAYER WILL BE CONFINED TO THE COASTAL AREAS. MOSTLY SUNNY AND WARM
THURSDAY WITH HIGH TEMPERATURES A LITTLE HIGHER THAN AVERAGE FOR
LATE APRIL. THAT ALL CHANGES FRIDAY AND SATURDAY WITH A COLD PACIFIC
TROUGH IMPACTS THE WEST COAST.

THE EC...GFS AND CANADIAN MODELS ARE ALL IN GOOD AGREEMENT WITH THE
TRACK...TIMING AND INTENSITY OF THIS STRONG SPRING STORM. FRIDAY
WILL TURN COOLER AND PROGRESSIVELY WINDIER AS THE THROUGH MOVES DOWN
THE WEST COAST. BY FRIDAY AFTERNOON A 546 DM UPPER LOW WILL BE NEAR
SFO WITH A 997 MB SFC LOW OVER THE GREAT BASIN. THE MARINE LAYER
WILL DEEPEN RAPIDLY THROUGH FRIDAY TO AROUND 5000 FEET BY EVENING.

A STRONG VORT MAX ROTATES AROUND THE BASE OF THE TROUGH AND DIRECTLY
OVER SOCAL FRIDAY NIGHT THROUGH SATURDAY MORNING. PRECIPITABLE WATER
INCREASES TO AROUND 0.90" FRIDAY EVENING WITH DYNAMIC FORCING LIKELY
TO GENERATE SCATTERED SHOWERS JUST ABOUT ANYWHERE ALONG AND WEST OF
THE MOUNTAINS. BEST CHANCES WILL BE ON THE COASTAL MOUNTAIN SLOPES
WHERE STRONG 40-45 KT 850 MB FLOW NEARLY PERPENDICULAR TO THE SAN
JACINTO AND SAN DIEGO COUNTY MOUNTAIN RANGES WILL ENHANCE OROGRAPHIC
PRECIPITATION. RAIN AMOUNTS WILL BE VARIABLE WITH THIS
SYSTEM...RANGING FROM A FEW HUNDREDTHS TO A QUARTER INCH WEST OF THE
MOUNTAINS...A QUARTER TO HALF INCH IN THE MOUNTAINS...AND ISOLATED
AMOUNTS OF 0.75" ON FAVORED SLOPES. SNOW LEVELS LOWER TO 4000-5000
FEET FRIDAY NIGHT/SATURDAY MORNING WITH 1-3 INCHES OF SNOW
ACCUMULATION ABOVE 5000 FEET IN AREAS THAT GET THE HEAVIEST SNOW
SHOWERS.

THE STRONG WINDS ALOFT COMBINED WITH DOUBLE DIGIT ONSHORE SURFACE
PRESSURE GRADIENTS WILL GENERATE STRONG WINDS FRIDAY EVENING THROUGH
SATURDAY MORNING. WIND ADVISORIES OR HIGH WIND WARNINGS WILL BE
NEEDED. BLOWING DUST AND SAND WILL RESTRICT VISIBILITIES IN THE
DESERTS. GALE FORCE WINDS ARE POSSIBLE OVER THE OUTER WATERS.

THE TROUGH MOVES EAST SATURDAY EVENING AND THE WINDS WILL GRADUALLY
DECREASE. A HIGH PRESSURE RIDGE BEGINS TO BUILD OVER THE WEST
ON SUNDAY AND WILL CONTINUE TO AMPLIFY ALONG THE WEST COAST THROUGH
TUESDAY. TEMPERATURES WILL BE TRENDING STEADILY UPWARD EACH DAY WITH
VALLEYS HIGHS IN THE 90S BY TUESDAY...AND COASTAL HIGHS IN THE 80S.

&&

.AVIATION...
232000Z...COAST/VALLEYS...MOSTLY CLEAR SKIES WITH SCT CIRRUS THROUGH
THIS EVENING. SCT LOW CLOUDS MAY RETURN TONIGHT TO THE COASTAL
AREAS...THOUGH CIGS APPEAR UNLIKELY AT THIS TIME. ANY CIGS THAT DO
FORM OVER THE COASTAL AIRPORTS WILL BE BRIEF AND JUST BEFORE
SUNRISE. ANY LOW CLOUDS WILL DISSIPATE BY MID SATURDAY
MORNING...LEAVING MOSTLY CLEAR SKIES AND UNRESTRICTED VIS.

MTNS/DESERTS...MOSTLY CLEAR WITH UNRESTRICTED VIS THROUGH WED
EVENING.

&&

.MARINE...
THE 1 PM PDT SAN CLEMENTE ISLAND BASIN BUOY OBS SHOW COMBINED SEAS
SLOWLY BUT SURELY LOWERING TO AROUND 8 FEET. EXPECT SEAS TO CONTINUE
SUBSIDING THROUGH THE END OF THE WEEK.

FRI AFTERNOON THROUGH SAT...20-30 KT WINDS ARE LIKELY TO DEVELOP
OVER THE COASTAL WATERS...ACCOMPANIED BY A STEEP WNW SWELL.
CONFIDENCE IS HIGH THIS WILL GENERATE CONDITIONS HAZARDOUS FOR SMALL
CRAFT DURING THIS PERIOD.

A 4 FT LONG-PERIOD SOUTH SWELL THIS WEEKEND MAY PRODUCE HIGH SURF
CONDITIONS WITH SETS OF 7 TO 8 FT ALONG FAVORED SOUTH-FACING BEACHES
OF ORANGE COUNTY. STRONG LONGSHORE AND RIP CURRENTS ARE LIKELY AT
MANY BEACHES OF SAN DIEGO AND ORANGE COUNTY AS WELL.

&&

.SKYWARN...
SKYWARN ACTIVATION IS NOT REQUESTED. HOWEVER WEATHER SPOTTERS ARE
ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS.

&&

.SGX WATCHES/WARNINGS/ADVISORIES...
PZ...NONE.

&&

$$

PUBLIC...MOEDE
AVIATION/MARINE...TS











000
FXUS66 KSGX 231820 AAA
AFDSGX

AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE SAN DIEGO CA
1120 AM PDT WED APR 23 2014

UPDATED WWA SECTION TO REMOVE THE SMALL CRAFT ADVISORY

.SYNOPSIS...
WEAK HIGH PRESSURE WILL BRING FAIR SEASONAL WEATHER THROUGH
THURSDAY. A STRONG LOW PRESSURE TROUGH MOVING ACROSS SOUTHERN
CALIFORNIA FRIDAY AND SATURDAY WILL BRING COOL...WINDY WEATHER AS
WELL AS SOME SHOWERS ALONG AND WEST OF THE MOUNTAINS. FAIR AND MUCH
WARMER NEXT WEEK UNDER BUILDING HIGH PRESSURE.

&&

.DISCUSSION...FOR EXTREME SOUTHWESTERN CALIFORNIA INCLUDING ORANGE...
SAN DIEGO...WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO
COUNTIES...

MARINE LAYER CLOUDS CLEARED QUICKLY ACROSS SAN DIEGO COUNTY AND THE
SOUTHERN HALF OF THE INLAND EMPIRE. ORANGE COUNTY AND THE NORTHERN
INLAND EMPIRE REMAINED MOSTLY CLEAR OVERNIGHT. WEAK RIDGING ALOFT
WILL BRING WARMER WEATHER AND LIGHTER WINDS TODAY ALONG WITH A
SHALLOWER MARINE LAYER. HIGH CIRRUS CLOUDS SPILLING OVER THE TOP OF
THE RIDGE THROUGH THURSDAY ARE A PRECURSOR TO BIG CHANGES IN OUR
WEATHER FRIDAY AND SATURDAY.

THE RIDGE AXIS DRIFTS ACROSS SOCAL TONIGHT WITH A TRANSITION TO
ZONAL FLOW ON THURSDAY. INCREASING ONSHORE FLOW THURSDAY NIGHT WILL
DEEPEN THE MARINE LAYER THROUGH FRIDAY MORNING WHEN LOW CLOUDS WILL
LIKELY SPREAD BACK INTO THE INLAND VALLEYS...AIDED IN PART BY A
COASTAL EDDY. FRIDAY WILL TURN COOLER AND PROGRESSIVELY WINDIER AS
THE TROUGH DEEPENS AND SLIDES DOWN THE WEST COAST TO NEAR SFO BY
EVENING. A STRONG VORT MAX AND A POWERFUL 100 KT JET WILL TRACK
DIRECTLY OVER SOUTHERN CALIFORNIA FRIDAY NIGHT THROUGH SATURDAY
MORNING BRINGING STRONG WINDS AND A GOOD CHANCE FOR SHOWERS ALONG
AND WEST OF THE MOUNTAINS. SHOWERS ARE POSSIBLE JUST ABOUT ANYWHERE
FROM THE MOUNTAINS TO THE COAST DURING THIS TIME WITH BEST CHANCES
ON THE COASTAL MOUNTAINS SLOPES THE STRONG ONSHORE FLOW. 40-50 KT
850 MB FLOW NEARLY PERPENDICULAR TO THE PENINSULAR RANGES WILL
ENHANCE PRECIPITATION AMOUNTS OVER THE RIVERSIDE AND SAN DIEGO
COUNTY MOUNTAINS. RAIN AMOUNTS WILL BE QUITE VARIABLE WITH THIS
SYSTEM WITH SCATTERED NATURE OF THE PRECIP...RANGING FROM A FEW
HUNDREDTHS TO A QUARTER INCH WEST OF THE MOUNTAINS...AND UPWARDS OF
A HALF INCH OVER THE MOUNTAINS. THIS COLD STORM WILL LOWER SNOW
LEVELS TO 4000-5000 FEET SATURDAY MORNING WITH A FEW INCHES OF
ACCUMULATION ABOVE 5000 FEET.

SATURDAY WILL BE A COLD...WINDY DAY. HIGHS WILL BE IN THE LOW TO MID
60S WEST OF THE MOUNTAINS...AND IN THE 30S AND LOW 40S IN THE
MOUNTAINS. DESERT HIGHS WILL BE IN THE 60S AND 70S. WIND ADVISORIES
OR HIGH WIND WARNINGS WILL BE NEEDED...AND BLOWING DUST AND SAND
WILL RESTRICT VISIBILITIES IN THE DESERTS.

THE TROUGH MOVES EAST SATURDAY AFTERNOON/EVENING WITH THE STRONG
WINDS SLOWLY DECREASING THROUGH SATURDAY NIGHT IN THE PREVAILING WNW
FLOW TRAILING THE COLD FRONT.

A HIGH PRESSURE RIDGE BEGINS TO BUILD SUNDAY AND WILL CONTINUE TO
AMPLIFY ALONG THE WEST COAST THROUGH TUESDAY. SOME INDICATIONS ARE
FOR REALLY HOT WEATHER TO DEVELOP ALONG WITH OFFSHORE FLOW TO BOOST
HEATING POTENTIAL. BUT OTHER SOLUTIONS INDICATE A MORE MUTED WARMING
TREND. EITHER WAY...TEMPERATURES WILL BE WELL ABOVE AVERAGE NEXT
MON-WED.

&&

.AVIATION...
231530Z...COAST/VALLEYS...PATCHY STRATUS WITH BASES 2000-3000 FT MSL
WILL DISSIPATE THIS MORNING...LEAVING MOSTLY CLEAR SKIES WITH SCT
CIRRUS THROUGH THIS EVENING. SCT LOW CLOUDS MAY RETURN TONIGHT TO
THE COASTAL AREAS...THOUGH CIGS APPEAR UNLIKELY AT THIS TIME. KSAN
COULD GET A BRIEF CIG EARLY SATURDAY MORNING...BUT WILL BE BRIEF IF
IT OCCURS. ANY LOW CLOUDS WILL DISSIPATE BY MID SATURDAY MORNING.

MTNS/DESERTS...MOSTLY CLEAR WITH UNRESTRICTED VIS THROUGH WED
EVENING. DESERT SLOPES AND ADJACENT DESERT LOCATIONS WILL HAVE LOCAL
SFC GUSTS TO 25 KNOTS THROUGH LATE THIS MORNING WITH ASSOCIATED
UDDFS/LLWS...CONTINUING TO DECREASE THROUGHOUT THE DAY.

&&

.MARINE...
THE 8 AM PDT SAN CLEMENTE ISLAND BASIN BUOY OBS STILL SHOWED
COMBINED SEAS OF 9 FT...BUT WINDS HAVE DROPPED OFF GENERALLY BELOW
15 KT. EXPECT ROUGH AND STEEP SEAS TO SLOWLY SUBSIDE THROUGH THIS
MORNING AS WELL. THEREFORE...THE SMALL CRAFT ADVISORY WILL BE
ALLOWED TO EXPIRE AT 10 AM.

FRI AFTERNOON THROUGH SAT...20-30 KT WINDS ARE LIKELY TO DEVELOP
OVER THE COASTAL WATERS...ACCOMPANIED BY A STEEP WNW SWELL.
CONFIDENCE IS HIGH THIS WILL GENERATE CONDITIONS HAZARDOUS FOR SMALL
CRAFT DURING THIS PERIOD.

A 4 FT LONG-PERIOD SOUTH SWELL THIS WEEKEND MAY PRODUCE HIGH SURF
CONDITIONS WITH SETS OF 7 TO 8 FT ALONG FAVORED SOUTH-FACING BEACHES
OF ORANGE COUNTY. STRONG LONGSHORE AND RIP CURRENTS ARE LIKELY AT
MANY BEACHES OF SAN DIEGO AND ORANGE COUNTY AS WELL.

&&

.SKYWARN...
SKYWARN ACTIVATION IS NOT REQUESTED. HOWEVER WEATHER SPOTTERS ARE
ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS.

&&

.SGX WATCHES/WARNINGS/ADVISORIES...
PZ...NONE.

&&

$$

PUBLIC...MOEDE
AVIATION/MARINE...TS














000
FXUS66 KSGX 231623
AFDSGX

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN DIEGO CA
925 AM PDT WED APR 23 2014

.SYNOPSIS...
WEAK HIGH PRESSURE WILL BRING FAIR SEASONAL WEATHER THROUGH
THURSDAY. A STRONG LOW PRESSURE TROUGH MOVING ACROSS SOUTHERN
CALIFORNIA FRIDAY AND SATURDAY WILL BRING COOL...WINDY WEATHER AS
WELL AS SOME SHOWERS ALONG AND WEST OF THE MOUNTAINS. FAIR AND MUCH
WARMER NEXT WEEK UNDER BUILDING HIGH PRESSURE.

&&

.DISCUSSION...FOR EXTREME SOUTHWESTERN CALIFORNIA INCLUDING ORANGE...
SAN DIEGO...WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO
COUNTIES...

MARINE LAYER CLOUDS CLEARED QUICKLY ACROSS SAN DIEGO COUNTY AND THE
SOUTHERN HALF OF THE INLAND EMPIRE. ORANGE COUNTY AND THE NORTHERN
INLAND EMPIRE REMAINED MOSTLY CLEAR OVERNIGHT. WEAK RIDGING ALOFT
WILL BRING WARMER WEATHER AND LIGHTER WINDS TODAY ALONG WITH A
SHALLOWER MARINE LAYER. HIGH CIRRUS CLOUDS SPILLING OVER THE TOP OF
THE RIDGE THROUGH THURSDAY ARE A PRECURSOR TO BIG CHANGES IN OUR
WEATHER FRIDAY AND SATURDAY.

THE RIDGE AXIS DRIFTS ACROSS SOCAL TONIGHT WITH A TRANSITION TO
ZONAL FLOW ON THURSDAY. INCREASING ONSHORE FLOW THURSDAY NIGHT WILL
DEEPEN THE MARINE LAYER THROUGH FRIDAY MORNING WHEN LOW CLOUDS WILL
LIKELY SPREAD BACK INTO THE INLAND VALLEYS...AIDED IN PART BY A
COASTAL EDDY. FRIDAY WILL TURN COOLER AND PROGRESSIVELY WINDIER AS
THE TROUGH DEEPENS AND SLIDES DOWN THE WEST COAST TO NEAR SFO BY
EVENING. A STRONG VORT MAX AND A POWERFUL 100 KT JET WILL TRACK
DIRECTLY OVER SOUTHERN CALIFORNIA FRIDAY NIGHT THROUGH SATURDAY
MORNING BRINGING STRONG WINDS AND A GOOD CHANCE FOR SHOWERS ALONG
AND WEST OF THE MOUNTAINS. SHOWERS ARE POSSIBLE JUST ABOUT ANYWHERE
FROM THE MOUNTAINS TO THE COAST DURING THIS TIME WITH BEST CHANCES
ON THE COASTAL MOUNTAINS SLOPES THE STRONG ONSHORE FLOW. 40-50 KT
850 MB FLOW NEARLY PERPENDICULAR TO THE PENINSULAR RANGES WILL
ENHANCE PRECIPITATION AMOUNTS OVER THE RIVERSIDE AND SAN DIEGO
COUNTY MOUNTAINS. RAIN AMOUNTS WILL BE QUITE VARIABLE WITH THIS
SYSTEM WITH SCATTERED NATURE OF THE PRECIP...RANGING FROM A FEW
HUNDREDTHS TO A QUARTER INCH WEST OF THE MOUNTAINS...AND UPWARDS OF
A HALF INCH OVER THE MOUNTAINS. THIS COLD STORM WILL LOWER SNOW
LEVELS TO 4000-5000 FEET SATURDAY MORNING WITH A FEW INCHES OF
ACCUMULATION ABOVE 5000 FEET.

SATURDAY WILL BE A COLD...WINDY DAY. HIGHS WILL BE IN THE LOW TO MID
60S WEST OF THE MOUNTAINS...AND IN THE 30S AND LOW 40S IN THE
MOUNTAINS. DESERT HIGHS WILL BE IN THE 60S AND 70S. WIND ADVISORIES
OR HIGH WIND WARNINGS WILL BE NEEDED...AND BLOWING DUST AND SAND
WILL RESTRICT VISIBILITIES IN THE DESERTS.

THE TROUGH MOVES EAST SATURDAY AFTERNOON/EVENING WITH THE STRONG
WINDS SLOWLY DECREASING THROUGH SATURDAY NIGHT IN THE PREVAILING WNW
FLOW TRAILING THE COLD FRONT.

A HIGH PRESSURE RIDGE BEGINS TO BUILD SUNDAY AND WILL CONTINUE TO
AMPLIFY ALONG THE WEST COAST THROUGH TUESDAY. SOME INDICATIONS ARE
FOR REALLY HOT WEATHER TO DEVELOP ALONG WITH OFFSHORE FLOW TO BOOST
HEATING POTENTIAL. BUT OTHER SOLUTIONS INDICATE A MORE MUTED WARMING
TREND. EITHER WAY...TEMPERATURES WILL BE WELL ABOVE AVERAGE NEXT
MON-WED.

&&

.AVIATION...
231530Z...COAST/VALLEYS...PATCHY STRATUS WITH BASES 2000-3000 FT MSL
WILL DISSIPATE THIS MORNING...LEAVING MOSTLY CLEAR SKIES WITH SCT
CIRRUS THROUGH THIS EVENING. SCT LOW CLOUDS MAY RETURN TONIGHT TO
THE COASTAL AREAS...THOUGH CIGS APPEAR UNLIKELY AT THIS TIME. KSAN
COULD GET A BRIEF CIG EARLY SATURDAY MORNING...BUT WILL BE BRIEF IF
IT OCCURS. ANY LOW CLOUDS WILL DISSIPATE BY MID SATURDAY MORNING.

MTNS/DESERTS...MOSTLY CLEAR WITH UNRESTRICTED VIS THROUGH WED
EVENING. DESERT SLOPES AND ADJACENT DESERT LOCATIONS WILL HAVE LOCAL
SFC GUSTS TO 25 KNOTS THROUGH LATE THIS MORNING WITH ASSOCIATED
UDDFS/LLWS...CONTINUING TO DECREASE THROUGHOUT THE DAY.

&&

.MARINE...
THE 8 AM PDT SAN CLEMENTE ISLAND BASIN BUOY OBS STILL SHOWED
COMBINED SEAS OF 9 FT...BUT WINDS HAVE DROPPED OFF GENERALLY BELOW
15 KT. EXPECT ROUGH AND STEEP SEAS TO SLOWLY SUBSIDE THROUGH THIS
MORNING AS WELL. THEREFORE...THE SMALL CRAFT ADVISORY WILL BE
ALLOWED TO EXPIRE AT 10 AM.

FRI AFTERNOON THROUGH SAT...20-30 KT WINDS ARE LIKELY TO DEVELOP
OVER THE COASTAL WATERS...ACCOMPANIED BY A STEEP WNW SWELL.
CONFIDENCE IS HIGH THIS WILL GENERATE CONDITIONS HAZARDOUS FOR SMALL
CRAFT DURING THIS PERIOD.

A 4 FT LONG-PERIOD SOUTH SWELL THIS WEEKEND MAY PRODUCE HIGH SURF
CONDITIONS WITH SETS OF 7 TO 8 FT ALONG FAVORED SOUTH-FACING BEACHES
OF ORANGE COUNTY. STRONG LONGSHORE AND RIP CURRENTS ARE LIKELY AT
MANY BEACHES OF SAN DIEGO AND ORANGE COUNTY AS WELL.

&&

.SKYWARN...
SKYWARN ACTIVATION IS NOT REQUESTED. HOWEVER WEATHER SPOTTERS ARE
ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS.

&&

.SGX WATCHES/WARNINGS/ADVISORIES...
PZ...SMALL CRAFT ADVISORY UNTIL 10 AM PDT THIS MORNING FOR THE WATERS
     FROM SAN MATEO POINT TO THE MEXICAN BORDER EXTENDING 30 TO
     60 NM OUT INCLUDING SAN CLEMENTE ISLAND.

&&

$$

PUBLIC...MOEDE
AVIATION/MARINE...TS










000
FXUS66 KSGX 231044
AFDSGX

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN DIEGO CA
345 AM PDT WED APR 23 2014

.SYNOPSIS...
WINDS WILL CONTINUE TO DECREASE THIS MORNING. WEAK HIGH PRESSURE
WILL BRING FAIR SEASONAL WEATHER THROUGH THURSDAY. A STRONG LOW
PRESSURE TROUGH WILL MOVE THROUGH SOUTHERN CALIFORNIA FRIDAY AND
SATURDAY...BRINGING COOL AND WINDY WEATHER AS WELL AS SOME SHOWERS
ALONG AND WEST OF THE MOUNTAINS. FAIR AND MUCH WARMER WEATHER WILL
DEVELOP NEXT WEEK.

&&

.DISCUSSION...FOR EXTREME SOUTHWESTERN CALIFORNIA INCLUDING ORANGE...
SAN DIEGO...WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO
COUNTIES...

IT HAS BEEN A FAIR NIGHT EXCEPT FOR THE WINDS. IT WAS A WINDY NIGHT
TOO FOR MOUNTAIN RIDGES AND ADJACENT DESERTS...BUT GUSTS HAVE COME
DOWN EARLY THIS MORNING. A FEW LOW CLOUDS HAVE HUNG AROUND RANDOMLY
MAINLY ALONG THE FOOTHILLS...BUT MOST AREAS HAVE BEEN CLEAR. ENJOY A
MOSTLY SUNNY DAY TODAY WITH SEASONAL TEMPERATURES. NOT A LOT OF
COASTAL LOW CLOUDS WILL DEVELOP NEAR THE COAST TONIGHT...BUT MORE
HIGH CLOUDS WILL STREAM ALOFT THURSDAY. A DEEP LOW PRESSURE TROUGH
WILL ARRIVE IN SOUTHERN CALIFORNIA FRIDAY. INITIALLY THIS WILL
DEEPEN THE MARINE LAYER TO EXTEND LOW CLOUDS INTO MOST OF THE
COASTAL BASIN FRIDAY MORNING. BY AFTERNOON STRONG WINDS WILL PICK UP
IN THE MOUNTAINS...DESERTS AND COASTAL WATERS AND CONTINUE THROUGH
SATURDAY AFTERNOON. THE MOISTURE IS LIMITED...BUT ENOUGH TO WARRANT
SOME SHOWERS MAINLY FROM THE MOUNTAIN CRESTS TO THE COAST. THE
OROGRAPHICS WILL FAVOR RAINFALL ON THE COASTAL SLOPES. OVERALL
RAINFALL WILL BE LIGHT...MAINLY LESS THAN A TENTH INCH NEAR THE
COAST AND UP TO A QUARTER INCH IN THE MOUNTAINS. EVEN A LITTLE SNOW
WILL FALL IN THE HIGHER MOUNTAINS ABOVE 6000 FEET. IT WILL FEEL
QUITE CHILLY FOR SPRINGTIME ON SATURDAY...WITH LOW TO MID 60S
COMMON. THIS SYSTEM WILL MOVE OUT QUICKLY SATURDAY FOR AN END TO
SHOWERS...BUT STRONG WINDS WILL TAKE MORE TIME TO DIMINISH AS THE
ATMOSPHERE DRIES OUT. A HIGH PRESSURE RIDGE BEGINS TO BUILD SUNDAY
AND WILL CONTINUE TO AMPLIFY ALONG THE WEST COAST THROUGH TUESDAY.
SOME INDICATIONS ARE FOR REALLY HOT WEATHER TO DEVELOP ALONG WITH
OFFSHORE FLOW TO BOOST HEATING POTENTIAL. BUT OTHER SOLUTIONS
INDICATE A MORE MUTED WARMING TREND. EITHER WAY...90S IN THE VALLEYS
BY TUESDAY.

&&

.AVIATION...
231000Z...COAST/VALLEYS...MOSTLY CLEAR WITH UNRESTRICTED VIS THROUGH
THIS EVENING...EXCEPT FOR PATCHY STRATOCU WITH BASES 2000-3000 FT
MSL AT TIMES. KSAN LOOKS LIKE IT MAY BE BROKEN FOR A FEW HOURS EARLY
THIS MORNING UNTIL THE MOIST LAYER MIXES OUT.

MTNS/DESERTS...MOSTLY CLEAR WITH UNRESTRICTED VIS THROUGH WED
EVENING. DESERT SLOPES AND ADJACENT DESERT LOCATIONS WILL HAVE LOCAL
SFC GUSTS OVER 35 KNOTS THROUGH 12Z WITH ASSOCIATED UP/DOWNDRAFTS/
LLWS.

&&

.MARINE...
23/300 AM PDT...17-23KT WINDS WERE OCCURRING AT THE SAN CLEMENTE
ISLAND BASIN BUOY AT 09Z WITH COMBINED SEAS OF 9 FT. GALES CONTINUE
OVER THE OTHER WATERS TO THE NORTHWEST SO EXPECT ROUGH AND STEEP
SEAS TO ONLY SLOWLY SUBSIDE THROUGH THIS MORNING. THE SMALL CRAFT
ADVISORY HAS BEEN EXTENDED THROUGH 10 AM FOR THE OUTER WATERS.

FRI AFTERNOON THROUGH SAT...20-30 KT WINDS ARE LIKELY TO DEVELOP
OVER THE COASTAL WATERS...ACCOMPANIED BY A STEEP WNW SWELL.
CONFIDENCE IS HIGH THIS WILL GENERATE CONDITIONS HAZARDOUS FOR SMALL
CRAFT DURING THIS PERIOD.

A 4 FT LONG-PERIOD SOUTH SWELL THIS WEEKEND MAY PRODUCE HIGH SURF
CONDITIONS WITH SETS OF 7 TO 8 FT ALONG FAVORED SOUTH-FACING BEACHES
OF ORANGE COUNTY. STRONG LONGSHORE AND RIP CURRENTS ARE LIKELY AT
MANY BEACHES OF SAN DIEGO AND ORANGE COUNTY AS WELL.

&&

.SKYWARN...
SKYWARN ACTIVATION IS NOT REQUESTED. HOWEVER WEATHER SPOTTERS ARE
ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS.

&&

.SGX WATCHES/WARNINGS/ADVISORIES...
PZ...SMALL CRAFT ADVISORY UNTIL 10 AM PDT THIS MORNING FOR THE WATERS
     FROM SAN MATEO POINT TO THE MEXICAN BORDER EXTENDING 30 TO
     60 NM OUT INCLUDING SAN CLEMENTE ISLAND.

&&

$$

PUBLIC...MM
AVIATION/MARINE...JAD







000
FXUS66 KSGX 231044
AFDSGX

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN DIEGO CA
345 AM PDT WED APR 23 2014

.SYNOPSIS...
WINDS WILL CONTINUE TO DECREASE THIS MORNING. WEAK HIGH PRESSURE
WILL BRING FAIR SEASONAL WEATHER THROUGH THURSDAY. A STRONG LOW
PRESSURE TROUGH WILL MOVE THROUGH SOUTHERN CALIFORNIA FRIDAY AND
SATURDAY...BRINGING COOL AND WINDY WEATHER AS WELL AS SOME SHOWERS
ALONG AND WEST OF THE MOUNTAINS. FAIR AND MUCH WARMER WEATHER WILL
DEVELOP NEXT WEEK.

&&

.DISCUSSION...FOR EXTREME SOUTHWESTERN CALIFORNIA INCLUDING ORANGE...
SAN DIEGO...WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO
COUNTIES...

IT HAS BEEN A FAIR NIGHT EXCEPT FOR THE WINDS. IT WAS A WINDY NIGHT
TOO FOR MOUNTAIN RIDGES AND ADJACENT DESERTS...BUT GUSTS HAVE COME
DOWN EARLY THIS MORNING. A FEW LOW CLOUDS HAVE HUNG AROUND RANDOMLY
MAINLY ALONG THE FOOTHILLS...BUT MOST AREAS HAVE BEEN CLEAR. ENJOY A
MOSTLY SUNNY DAY TODAY WITH SEASONAL TEMPERATURES. NOT A LOT OF
COASTAL LOW CLOUDS WILL DEVELOP NEAR THE COAST TONIGHT...BUT MORE
HIGH CLOUDS WILL STREAM ALOFT THURSDAY. A DEEP LOW PRESSURE TROUGH
WILL ARRIVE IN SOUTHERN CALIFORNIA FRIDAY. INITIALLY THIS WILL
DEEPEN THE MARINE LAYER TO EXTEND LOW CLOUDS INTO MOST OF THE
COASTAL BASIN FRIDAY MORNING. BY AFTERNOON STRONG WINDS WILL PICK UP
IN THE MOUNTAINS...DESERTS AND COASTAL WATERS AND CONTINUE THROUGH
SATURDAY AFTERNOON. THE MOISTURE IS LIMITED...BUT ENOUGH TO WARRANT
SOME SHOWERS MAINLY FROM THE MOUNTAIN CRESTS TO THE COAST. THE
OROGRAPHICS WILL FAVOR RAINFALL ON THE COASTAL SLOPES. OVERALL
RAINFALL WILL BE LIGHT...MAINLY LESS THAN A TENTH INCH NEAR THE
COAST AND UP TO A QUARTER INCH IN THE MOUNTAINS. EVEN A LITTLE SNOW
WILL FALL IN THE HIGHER MOUNTAINS ABOVE 6000 FEET. IT WILL FEEL
QUITE CHILLY FOR SPRINGTIME ON SATURDAY...WITH LOW TO MID 60S
COMMON. THIS SYSTEM WILL MOVE OUT QUICKLY SATURDAY FOR AN END TO
SHOWERS...BUT STRONG WINDS WILL TAKE MORE TIME TO DIMINISH AS THE
ATMOSPHERE DRIES OUT. A HIGH PRESSURE RIDGE BEGINS TO BUILD SUNDAY
AND WILL CONTINUE TO AMPLIFY ALONG THE WEST COAST THROUGH TUESDAY.
SOME INDICATIONS ARE FOR REALLY HOT WEATHER TO DEVELOP ALONG WITH
OFFSHORE FLOW TO BOOST HEATING POTENTIAL. BUT OTHER SOLUTIONS
INDICATE A MORE MUTED WARMING TREND. EITHER WAY...90S IN THE VALLEYS
BY TUESDAY.

&&

.AVIATION...
231000Z...COAST/VALLEYS...MOSTLY CLEAR WITH UNRESTRICTED VIS THROUGH
THIS EVENING...EXCEPT FOR PATCHY STRATOCU WITH BASES 2000-3000 FT
MSL AT TIMES. KSAN LOOKS LIKE IT MAY BE BROKEN FOR A FEW HOURS EARLY
THIS MORNING UNTIL THE MOIST LAYER MIXES OUT.

MTNS/DESERTS...MOSTLY CLEAR WITH UNRESTRICTED VIS THROUGH WED
EVENING. DESERT SLOPES AND ADJACENT DESERT LOCATIONS WILL HAVE LOCAL
SFC GUSTS OVER 35 KNOTS THROUGH 12Z WITH ASSOCIATED UP/DOWNDRAFTS/
LLWS.

&&

.MARINE...
23/300 AM PDT...17-23KT WINDS WERE OCCURRING AT THE SAN CLEMENTE
ISLAND BASIN BUOY AT 09Z WITH COMBINED SEAS OF 9 FT. GALES CONTINUE
OVER THE OTHER WATERS TO THE NORTHWEST SO EXPECT ROUGH AND STEEP
SEAS TO ONLY SLOWLY SUBSIDE THROUGH THIS MORNING. THE SMALL CRAFT
ADVISORY HAS BEEN EXTENDED THROUGH 10 AM FOR THE OUTER WATERS.

FRI AFTERNOON THROUGH SAT...20-30 KT WINDS ARE LIKELY TO DEVELOP
OVER THE COASTAL WATERS...ACCOMPANIED BY A STEEP WNW SWELL.
CONFIDENCE IS HIGH THIS WILL GENERATE CONDITIONS HAZARDOUS FOR SMALL
CRAFT DURING THIS PERIOD.

A 4 FT LONG-PERIOD SOUTH SWELL THIS WEEKEND MAY PRODUCE HIGH SURF
CONDITIONS WITH SETS OF 7 TO 8 FT ALONG FAVORED SOUTH-FACING BEACHES
OF ORANGE COUNTY. STRONG LONGSHORE AND RIP CURRENTS ARE LIKELY AT
MANY BEACHES OF SAN DIEGO AND ORANGE COUNTY AS WELL.

&&

.SKYWARN...
SKYWARN ACTIVATION IS NOT REQUESTED. HOWEVER WEATHER SPOTTERS ARE
ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS.

&&

.SGX WATCHES/WARNINGS/ADVISORIES...
PZ...SMALL CRAFT ADVISORY UNTIL 10 AM PDT THIS MORNING FOR THE WATERS
     FROM SAN MATEO POINT TO THE MEXICAN BORDER EXTENDING 30 TO
     60 NM OUT INCLUDING SAN CLEMENTE ISLAND.

&&

$$

PUBLIC...MM
AVIATION/MARINE...JAD






000
FXUS66 KSGX 230415
AFDSGX

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN DIEGO CA
915 PM PDT TUE APR 22 2014

.SYNOPSIS...
GUSTY WEST WINDS WILL CONTINUE ACROSS THE MOUNTAINS AND DESERTS
TONIGHT...WHILE LOW CLOUDS REFORM WEST OF THE MOUNTAINS.  A
TRANSITORY RIDGE OF HIGH PRESSURE WILL THEN BRIEFLY BUILD BACK OVER
THE SOUTHLAND...WITH DRY AND WARMER CONDITIONS THROUGH THURSDAY.  A
STRONGER AND COLDER TROUGH WILL THEN MOVE INLAND ACROSS THE WEST
COAST LATE FRIDAY AND SATURDAY...BRINGING MUCH COOLER AND WIND
WEATHER TO THE REGION AS WELL AS A CHANCE OF SHOWERS ALONG AND WEST
OF THE MOUNTAINS. DRY AND WARMER CONDITIONS WILL DEVELOP FOR THE
WORK WEEK.

&&

.DISCUSSION...FOR EXTREME SOUTHWESTERN CALIFORNIA INCLUDING ORANGE...
SAN DIEGO...WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO
COUNTIES...

WATER VAPOR SHOWS A LARGE TROUGH OF LOW PRESSURE MOVING INLAND
ACROSS THE WEST COAST THIS EVENING.  AS A RESULT...STRONG AND GUSTY
WEST WINDS DEVELOPED ACROSS THE MOUNTAINS AND DESERTS EARLIER
TODAY.  AT THIS TIME THOUGH...THE ONSHORE PRESSURE GRADIENTS ARE
STARTING TO WEAKEN...WITH THE WINDIEST LOCATIONS STILL SEEING SOME
GUSTS TO AROUND 50 MPH.  THESE GRADIENTS WILL WEAKEN EVEN MORE
OVERNIGHT TONIGHT...SO THE WIND ADVISORY STILL LOOKS ON TRACK TO
EXPIRE AT 4 AM.  OTHERWISE...THE ONLY OTHER FEATURE OF NOTE THIS
EVENING IS THE RETURN OF LOW CLOUDS WEST OF THE MOUNTAINS.  CURRENT
FOG IMAGERY SHOWS THE BRUNT OF THESE CLOUDS OVER WESTERN SAN DIEGO
COUNTY...BUT SOME LOW CLOUDS ARE ALSO FORMING ALONG THE MOUNTAIN
SLOPES OF THE RIVERSIDE AND ORANGE COUNTY MOUNTAINS.  THE 00Z KNKX
SOUNDING SHOWS AN INVERSION AROUND 2600 FEET...WHICH COINCIDES WELL
WITH THE CURRENT CLOUD DECK.  THERE ALSO APPEARS TO BE ANOTHER LAYER
FORMING THOUGH...SO THE CLOUD DECK MAY THICKEN UP A BIT OVERNIGHT.
AT THIS TIME...DO NOT THINK THAT FOG WILL BE MUCH OF AN ISSUE
TONIGHT...BUT IT DEPENDS ON THE WHETHER OR NOT THE LOW CLOUDS FILL
IN OR REMAIN ON THE PATCHY SIDE.

A TRANSITORY RIDGE WILL THEN BRIEFLY BUILD BACK ACROSS THE REGION
FOR WEDNESDAY...WITH DRY AND WARMER CONDITIONS PREVAILING.  THIS
RIDGE WILL START TO SHIFT EAST ON THURSDAY THOUGH...AS THE NEXT
TROUGH DIGS OVER THE PACIFIC.  FOR NOW...THE MODELS ARE STILL
SHOWING WARM CONDITIONS PREVAILING THROUGH THURSDAY...EVEN THOUGH
THE ONSHORE FLOW WILL LIKELY INCREASE ACROSS THE REGION THIS DAY.
THEREFORE...EXPECT TEMPERATURES TO BE SIMILAR TO OR MAYBE SLIGHT
WARMER INLAND...WHILE COAST AREAS BEGIN TO TREND DOWNWARD.

THIS TROUGH WILL THEN MOVE INLAND ACROSS THE WEST LATE FRIDAY AND
INTO SATURDAY...BRINGING MUCH COOLER CONDITIONS AS WELL AS VERY
WINDY CONDITIONS TO THE SOUTHLAND.  IT APPEARS THAT THE 00Z MODELS
MAY BE SPEEDING THIS TROUGH UP AGAIN...BRINGING SOME LIGHT
SHOWERS TO AREAS ALONG AND WEST OF THE MOUNTAINS AS EARLY AS FRIDAY
EVENING.  THIS COULD MAKE FOR A MESS COMMUTE HOME.  HOWEVER...THINK
THE BRUNT OF THE MOISTURE WILL TIME DURING THE OVERNIGHT TIME FRAME
AND INTO EARLY SATURDAY MORNING.  ALTHOUGH A FEW SHOWERS MAY LINGER
INTO SATURDAY AFTERNOON...IT APPEARS THAT DRIER CONDITIONS WILL
DEVELOP BY SATURDAY EVENING.

ALTHOUGH DRIER NORTHWESTERLY FLOW WILL DEVELOP FOR SUNDAY ALONG WITH
A MINOR WARMER TREND...THE HEAT MAY REALLY KICK BACK ON FOR THE WORK
WEEK...AS A STRONG RIDGE OF HIGH PRESSURE BUILDS BACK ACROSS THE
WEST.  MODELS ARE INDICATING THAT 850 MB TEMPERATURES WILL BE
PUSHING 20 DEGREES BY TUESDAY...SO IT WOULD NOT SURPRISE ME IF SOME
OF THE INLAND VALLEYS WILL SURGE BACK INTO THE 90S ONCE AGAIN.

&&

.AVIATION...
230400Z...COAST/VALLEYS...AREAS OF STRATUS WILL OCCUR
TONIGHT...MAINLY IN SAN DIEGO COUNTY. MOST LIKELY...THE CIGS AT
AIRPORTS IN SAN DIEGO COUNTY WILL BECOME SCT WITH TEMPO BKN BY 06Z
IN MOST AREAS. WHERE CIGS OCCUR...CLOUD BASES WILL BE 2000-2500 FT
MSL WITH TOPS TO 3500 FT MSL. MOST VIS WILL REMAIN ABOVE 5 MI.
MOSTLY CLEAR CONDITIONS WILL PREVAIL WED...CONTINUING WED EVENING.

MTNS/DESERTS...A FEW CLOUDS WILL OCCUR ON THE LOWER COASTAL SLOPES
AT/BELOW 3500 FEET IN SAN DIEGO/RIVERSIDE COUNTIES WITH LOCAL MTN
OBSCURATIONS OVERNIGHT. OTHERWISE...SKIES WILL BE MOSTLY CLEAR WITH
UNRESTRICTED VIS THROUGH WED EVENING...EXCEPT FOR LOCAL BLOWING DUST
IN THE LOWER DESERTS. DESERT SLOPES AND ADJACENT DESERT LOCATIONS
WILL HAVE LOCAL SFC GUSTS OVER 40 KNOTS THROUGH 11Z WED AND
ASSOCIATED STRONG UP/DOWNDRAFTS/LLWS.

&&

.MARINE...
22/0900PM PDT...PEAK GUST OF 25 KNOTS WAS RECORDED AROUND 800 PM AT
SAN CLEMENTE ISLAND BASIN BUOY...AND SIMILAR WINDS WILL CONTINUE
UNTIL A LITTLE PAST MIDNIGHT IN THE OUTER WATERS. THE STEEP
SHORT-PERIOD WEST-NORTHWEST SWELL WILL CONTINUE THROUGH WEDNESDAY
MORNING...THEN GRADUALLY DECREASE WEDNESDAY MIDDAY/AFTERNOON. THE
COMBINATION OF STRONG WINDS AND STEEP SEAS WILL CREATE CONDITIONS
HAZARDOUS FOR SMALL CRAFT...AND SO A SMALL CRAFT ADVISORY CONTINUES
THROUGH 2 AM WED FOR THE OUTER WATERS.

FRIDAY AFTERNOON THROUGH SATURDAY...ANOTHER TROUGH WILL MOVE THROUGH
CALIFORNIA AND BRING ANOTHER ROUND OF STRONG NORTHWEST WINDS AND
STEEP WEST-NORTHWEST SWELL...RESULTING IN CONDITIONS HAZARDOUS FOR
SMALL CRAFT. CONFIDENCE IS MODERATELY HIGH FOR HAZARDOUS CONDITIONS
FOR SMALL CRAFT DURING THIS PERIOD.

&&

.SKYWARN...
SKYWARN ACTIVATION IS NOT REQUESTED. HOWEVER WEATHER SPOTTERS ARE
ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS.

&&

.SGX WATCHES/WARNINGS/ADVISORIES...
CA...WIND ADVISORY UNTIL 4 AM PDT WEDNESDAY FOR THE APPLE AND LUCERNE
     VALLEYS...COACHELLA VALLEY...RIVERSIDE COUNTY MOUNTAINS...
     SAN BERNARDINO COUNTY MOUNTAINS...SAN DIEGO COUNTY
     DESERTS...SAN DIEGO COUNTY MOUNTAINS.

PZ...SMALL CRAFT ADVISORY UNTIL 2 AM PDT WEDNESDAY FOR THE WATERS
     FROM SAN MATEO POINT TO THE MEXICAN BORDER EXTENDING 30 TO
     60 NM OUT INCLUDING SAN CLEMENTE ISLAND.

&&

$$

PUBLIC...PALMER
AVIATION/MARINE...MAXWELL







000
FXUS66 KSGX 230415
AFDSGX

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN DIEGO CA
915 PM PDT TUE APR 22 2014

.SYNOPSIS...
GUSTY WEST WINDS WILL CONTINUE ACROSS THE MOUNTAINS AND DESERTS
TONIGHT...WHILE LOW CLOUDS REFORM WEST OF THE MOUNTAINS.  A
TRANSITORY RIDGE OF HIGH PRESSURE WILL THEN BRIEFLY BUILD BACK OVER
THE SOUTHLAND...WITH DRY AND WARMER CONDITIONS THROUGH THURSDAY.  A
STRONGER AND COLDER TROUGH WILL THEN MOVE INLAND ACROSS THE WEST
COAST LATE FRIDAY AND SATURDAY...BRINGING MUCH COOLER AND WIND
WEATHER TO THE REGION AS WELL AS A CHANCE OF SHOWERS ALONG AND WEST
OF THE MOUNTAINS. DRY AND WARMER CONDITIONS WILL DEVELOP FOR THE
WORK WEEK.

&&

.DISCUSSION...FOR EXTREME SOUTHWESTERN CALIFORNIA INCLUDING ORANGE...
SAN DIEGO...WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO
COUNTIES...

WATER VAPOR SHOWS A LARGE TROUGH OF LOW PRESSURE MOVING INLAND
ACROSS THE WEST COAST THIS EVENING.  AS A RESULT...STRONG AND GUSTY
WEST WINDS DEVELOPED ACROSS THE MOUNTAINS AND DESERTS EARLIER
TODAY.  AT THIS TIME THOUGH...THE ONSHORE PRESSURE GRADIENTS ARE
STARTING TO WEAKEN...WITH THE WINDIEST LOCATIONS STILL SEEING SOME
GUSTS TO AROUND 50 MPH.  THESE GRADIENTS WILL WEAKEN EVEN MORE
OVERNIGHT TONIGHT...SO THE WIND ADVISORY STILL LOOKS ON TRACK TO
EXPIRE AT 4 AM.  OTHERWISE...THE ONLY OTHER FEATURE OF NOTE THIS
EVENING IS THE RETURN OF LOW CLOUDS WEST OF THE MOUNTAINS.  CURRENT
FOG IMAGERY SHOWS THE BRUNT OF THESE CLOUDS OVER WESTERN SAN DIEGO
COUNTY...BUT SOME LOW CLOUDS ARE ALSO FORMING ALONG THE MOUNTAIN
SLOPES OF THE RIVERSIDE AND ORANGE COUNTY MOUNTAINS.  THE 00Z KNKX
SOUNDING SHOWS AN INVERSION AROUND 2600 FEET...WHICH COINCIDES WELL
WITH THE CURRENT CLOUD DECK.  THERE ALSO APPEARS TO BE ANOTHER LAYER
FORMING THOUGH...SO THE CLOUD DECK MAY THICKEN UP A BIT OVERNIGHT.
AT THIS TIME...DO NOT THINK THAT FOG WILL BE MUCH OF AN ISSUE
TONIGHT...BUT IT DEPENDS ON THE WHETHER OR NOT THE LOW CLOUDS FILL
IN OR REMAIN ON THE PATCHY SIDE.

A TRANSITORY RIDGE WILL THEN BRIEFLY BUILD BACK ACROSS THE REGION
FOR WEDNESDAY...WITH DRY AND WARMER CONDITIONS PREVAILING.  THIS
RIDGE WILL START TO SHIFT EAST ON THURSDAY THOUGH...AS THE NEXT
TROUGH DIGS OVER THE PACIFIC.  FOR NOW...THE MODELS ARE STILL
SHOWING WARM CONDITIONS PREVAILING THROUGH THURSDAY...EVEN THOUGH
THE ONSHORE FLOW WILL LIKELY INCREASE ACROSS THE REGION THIS DAY.
THEREFORE...EXPECT TEMPERATURES TO BE SIMILAR TO OR MAYBE SLIGHT
WARMER INLAND...WHILE COAST AREAS BEGIN TO TREND DOWNWARD.

THIS TROUGH WILL THEN MOVE INLAND ACROSS THE WEST LATE FRIDAY AND
INTO SATURDAY...BRINGING MUCH COOLER CONDITIONS AS WELL AS VERY
WINDY CONDITIONS TO THE SOUTHLAND.  IT APPEARS THAT THE 00Z MODELS
MAY BE SPEEDING THIS TROUGH UP AGAIN...BRINGING SOME LIGHT
SHOWERS TO AREAS ALONG AND WEST OF THE MOUNTAINS AS EARLY AS FRIDAY
EVENING.  THIS COULD MAKE FOR A MESS COMMUTE HOME.  HOWEVER...THINK
THE BRUNT OF THE MOISTURE WILL TIME DURING THE OVERNIGHT TIME FRAME
AND INTO EARLY SATURDAY MORNING.  ALTHOUGH A FEW SHOWERS MAY LINGER
INTO SATURDAY AFTERNOON...IT APPEARS THAT DRIER CONDITIONS WILL
DEVELOP BY SATURDAY EVENING.

ALTHOUGH DRIER NORTHWESTERLY FLOW WILL DEVELOP FOR SUNDAY ALONG WITH
A MINOR WARMER TREND...THE HEAT MAY REALLY KICK BACK ON FOR THE WORK
WEEK...AS A STRONG RIDGE OF HIGH PRESSURE BUILDS BACK ACROSS THE
WEST.  MODELS ARE INDICATING THAT 850 MB TEMPERATURES WILL BE
PUSHING 20 DEGREES BY TUESDAY...SO IT WOULD NOT SURPRISE ME IF SOME
OF THE INLAND VALLEYS WILL SURGE BACK INTO THE 90S ONCE AGAIN.

&&

.AVIATION...
230400Z...COAST/VALLEYS...AREAS OF STRATUS WILL OCCUR
TONIGHT...MAINLY IN SAN DIEGO COUNTY. MOST LIKELY...THE CIGS AT
AIRPORTS IN SAN DIEGO COUNTY WILL BECOME SCT WITH TEMPO BKN BY 06Z
IN MOST AREAS. WHERE CIGS OCCUR...CLOUD BASES WILL BE 2000-2500 FT
MSL WITH TOPS TO 3500 FT MSL. MOST VIS WILL REMAIN ABOVE 5 MI.
MOSTLY CLEAR CONDITIONS WILL PREVAIL WED...CONTINUING WED EVENING.

MTNS/DESERTS...A FEW CLOUDS WILL OCCUR ON THE LOWER COASTAL SLOPES
AT/BELOW 3500 FEET IN SAN DIEGO/RIVERSIDE COUNTIES WITH LOCAL MTN
OBSCURATIONS OVERNIGHT. OTHERWISE...SKIES WILL BE MOSTLY CLEAR WITH
UNRESTRICTED VIS THROUGH WED EVENING...EXCEPT FOR LOCAL BLOWING DUST
IN THE LOWER DESERTS. DESERT SLOPES AND ADJACENT DESERT LOCATIONS
WILL HAVE LOCAL SFC GUSTS OVER 40 KNOTS THROUGH 11Z WED AND
ASSOCIATED STRONG UP/DOWNDRAFTS/LLWS.

&&

.MARINE...
22/0900PM PDT...PEAK GUST OF 25 KNOTS WAS RECORDED AROUND 800 PM AT
SAN CLEMENTE ISLAND BASIN BUOY...AND SIMILAR WINDS WILL CONTINUE
UNTIL A LITTLE PAST MIDNIGHT IN THE OUTER WATERS. THE STEEP
SHORT-PERIOD WEST-NORTHWEST SWELL WILL CONTINUE THROUGH WEDNESDAY
MORNING...THEN GRADUALLY DECREASE WEDNESDAY MIDDAY/AFTERNOON. THE
COMBINATION OF STRONG WINDS AND STEEP SEAS WILL CREATE CONDITIONS
HAZARDOUS FOR SMALL CRAFT...AND SO A SMALL CRAFT ADVISORY CONTINUES
THROUGH 2 AM WED FOR THE OUTER WATERS.

FRIDAY AFTERNOON THROUGH SATURDAY...ANOTHER TROUGH WILL MOVE THROUGH
CALIFORNIA AND BRING ANOTHER ROUND OF STRONG NORTHWEST WINDS AND
STEEP WEST-NORTHWEST SWELL...RESULTING IN CONDITIONS HAZARDOUS FOR
SMALL CRAFT. CONFIDENCE IS MODERATELY HIGH FOR HAZARDOUS CONDITIONS
FOR SMALL CRAFT DURING THIS PERIOD.

&&

.SKYWARN...
SKYWARN ACTIVATION IS NOT REQUESTED. HOWEVER WEATHER SPOTTERS ARE
ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS.

&&

.SGX WATCHES/WARNINGS/ADVISORIES...
CA...WIND ADVISORY UNTIL 4 AM PDT WEDNESDAY FOR THE APPLE AND LUCERNE
     VALLEYS...COACHELLA VALLEY...RIVERSIDE COUNTY MOUNTAINS...
     SAN BERNARDINO COUNTY MOUNTAINS...SAN DIEGO COUNTY
     DESERTS...SAN DIEGO COUNTY MOUNTAINS.

PZ...SMALL CRAFT ADVISORY UNTIL 2 AM PDT WEDNESDAY FOR THE WATERS
     FROM SAN MATEO POINT TO THE MEXICAN BORDER EXTENDING 30 TO
     60 NM OUT INCLUDING SAN CLEMENTE ISLAND.

&&

$$

PUBLIC...PALMER
AVIATION/MARINE...MAXWELL








000
FXUS66 KSGX 222042
AFDSGX

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN DIEGO CA
140 PM PDT TUE APR 22 2014

.SYNOPSIS...
GUSTY WEST WINDS IN THE MOUNTAINS AND DESERTS TONIGHT AS A LOW
PRESSURE TROUGH MOVES INLAND. HIGH PRESSURE BUILDING ALOFT TONIGHT
WILL BRING WARMER WEATHER AND FEWER MARINE LAYER CLOUDS WEDNESDAY
AND THURSDAY. A STRONGER PACIFIC STORM WILL BRING COOLER...WINDY
WEATHER FRIDAY AND SATURDAY ALONG WITH A CHANCE FOR SHOWERS WEST OF
THE MOUNTAINS. DRY WITH A WARMING TREND MONDAY THROUGH WEDNESDAY.

&&

.DISCUSSION...FOR EXTREME SOUTHWESTERN CALIFORNIA INCLUDING ORANGE...
SAN DIEGO...WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO
COUNTIES...

COOLING ALOFT BROKE UP THE INVERSION TODAY AND SKIES CLEARED QUICKLY
WEST OF THE MOUNTAINS THIS AFTERNOON. STRONGER WINDS BEGAN SURFACING
IN THE MOUNTAINS AND DOWN THE DESERT SLOPES THIS AFTERNOON WITH
SUSTAINED WINDS OF 15-30 MPH GUSTING TO 45 MPH. MODEL GUIDANCE SHOWS
STRONGEST WINDS THIS EVENING ACROSS THE MOUNTAINS AND DESERTS WHERE
A WIND ADVISORY IS IN EFFECT THROUGH 4 AM WEDNESDAY. MAXIMUM GUSTS
IN MOST AREAS WILL RANGE FROM 45 TO 55 MPH WITH ISOLATED HIGHER
GUSTS IN THE HIGHER TERRAIN OF THE NORTHERN COACHELLA VALLEY. THE
WINDS WILL SUBSIDE EARLY WEDNESDAY MORNING.

COLDER AIR FILLING IN BEHIND THE TROUGH TONIGHT WILL RESULT IN A
WEAKER INVERSION WHICH WILL TRANSLATE INTO FEWER MARINE LAYER CLOUDS
WEDNESDAY MORNING. WEAK RIDGING ALOFT THROUGH THURSDAY WILL BRING
MOSTLY SUNNY DAYS AND TEMPS A FEW DEGREES ABOVE AVERAGE.

FRIDAY THROUGH MONDAY...THERE IS GENERAL MODEL AGREEMENT WITH THE
TIMING OF THE LARGE SCALE TROUGH IMPACTING THE SOUTHWEST FRIDAY AND
SATURDAY. ONSHORE FLOW INCREASES RAPIDLY FRIDAY AHEAD OF THE TROUGH
WITH A SURGE OF HIGHER PRECIPITABLE WATER INTO SOCAL (0.80-0.90").
THIS SHOULD BE SUFFICIENT TO PRODUCE TERRAIN ENHANCED OROGRAPHIC
PRECIPITATION IN THE MOUNTAINS AND COASTAL SLOPES IN THE STRONG
WESTERLY LOW LEVEL FLOW. DYNAMICS ALOFT LOOK STRONG ENOUGH FOR A
CHANCE A SHOWERS JUST ABOUT ANYWHERE WEST OF THE MOUNTAINS FRIDAY
AFTERNOON THROUGH SATURDAY MORNING. THIS STRONGER TROUGH WILL ALSO
BRING MORE STRONG WINDS TO THE MOUNTAINS AND DESERTS...STRONGER THAN
WITH THE CURRENT SYSTEM. WIND ADVISORIES WILL BE NEEDED...OR PERHAPS
HIGH WIND WARNINGS.

THE TROUGH MOVES EAST SUNDAY FOLLOWED BY A HIGH AMPLITUDE WEST COAST
RIDGE FOR DRY AND MUCH WARMER WEATHER MONDAY THROUGH WEDNESDAY.

&&

.AVIATION...
222014Z...COAST/VALLEYS...THROUGH 23/0200 UTC...UNRESTRICTED VIS
WITH FEW-SCT CLDS 2000-3000 FT MSL. 23/0200-1500 UTC...VERY PATCHY
AND RANDOM CLDS 30-50 SM INLAND WITH BASES 2000-2500 FT MSL AND TOPS
3000-3500 FT MSL. SLIGHT CHANCE OF BKN CIGS FOR KSAN...KCRQ...KSNA
AND KONT...BUT CONFIDENCE VERY LOW. THUS...AM STICKING WITH SCT CIGS
FOR THOSE TAF SITES.

MTNS/DESERTS...SCT-BKN CLDS AOA 20000 FT MSL THROUGH 23/0400
UTC...BECOMING FEW-SKC THEREAFTER. SW TO W WIND GUSTS 30-45 KT OVER
MTN RIDGES...THROUGH PASSES/CANYONS...AND ALONG DESERT SLOPES AND
INTO FAVORED DESERT AREAS WILL RESULT IN STG-SVR UDDFS/LLWS AND
POSSIBLE ROTORS OVER AND E OR NE OF THE MTNS. MOSTLY UNRESTRICTED
VIS THROUGH WEDNESDAY MORNING...EXCEPT FOR LOCAL VIS AOB 5SM DUE TO
BLOWING DUST/SAND.

&&

.MARINE...
22/0100PM PDT...1 PM WIND OBSERVATIONS FROM THE SAN CLEMENTE BUOY
SHOW 19 KT WINDS...AND WINDS SHOULD CONTINUE TO STRENGTHEN OVER THE
OUTER WATERS THROUGH THE DAY AND INTO TONIGHT DUE TO A TROUGH OF LOW
PRESSURE MOVING THROUGH CALIFORNIA. A STEEP SHORT-PERIOD
WEST-NORTHWEST SWELL WILL MOVE INTO THE OUTER WATERS AS WELL THIS
AFTERNOON THROUGH WEDNESDAY MORNING. THE COMBINATION OF STRONG WINDS
AND STEEP SEAS WILL CREATE CONDITIONS HAZARDOUS FOR SMALL
CRAFT...AND SO A SMALL CRAFT ADVISORY CONTINUES THROUGH LATE TONIGHT
FOR THE OUTER WATERS. SEE LAXMWWSGX FOR MORE DETAILS. WINDS WILL
DIMINISH LATE TONIGHT WHILE SWELL GRADUALLY LOWERS LATER WEDNESDAY.

FRIDAY AFTERNOON THROUGH SATURDAY...ANOTHER TROUGH WILL MOVE
INLAND...BRINGING ANOTHER ROUND OF STRONG NORTHWEST WINDS AND STEEP
WEST-NORTHWEST SWELL...RESULTING IN CONDITIONS HAZARDOUS FOR SMALL
CRAFT ONCE AGAIN. CONFIDENCE IS MODERATE TO HIGH FOR HAZARDOUS
CONDITIONS FOR SMALL CRAFT DURING THIS PERIOD.

&&

.SKYWARN...
SKYWARN ACTIVATION IS NOT REQUESTED. HOWEVER WEATHER SPOTTERS ARE
ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS.

&&

.SGX WATCHES/WARNINGS/ADVISORIES...
CA...WIND ADVISORY FROM THROUGH 4 AM PDT WEDNESDAY FOR
     THE APPLE AND LUCERNE VALLEYS...COACHELLA VALLEY...
     RIVERSIDE COUNTY MOUNTAINS...SAN BERNARDINO COUNTY
     MOUNTAINS...SAN DIEGO COUNTY DESERTS...SAN DIEGO COUNTY
     MOUNTAINS.

PZ...SMALL CRAFT ADVISORY THROUGH 2 AM PDT WEDNESDAY FOR
     THE WATERS FROM SAN MATEO POINT TO THE MEXICAN BORDER
     EXTENDING 30 TO 60 NM OUT INCLUDING SAN CLEMENTE ISLAND.

&&

$$

PUBLIC...MOEDE
AVIATION/MARINE...HARRISON















000
FXUS66 KSGX 221633
AFDSGX

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN DIEGO CA
930 AM PDT TUE APR 22 2014

.SYNOPSIS...
A TROUGH OF LOW PRESSURE MOVING INLAND ACROSS CALIFORNIA WILL BRING
COOLER WEATHER TODAY...ALONG WITH STRONG WEST WINDS IN THE MOUNTAINS
AND DESERTS. WARMER WEDNESDAY AND THURSDAY WITH LIGHTER WINDS.
COOLER FRIDAY AND SATURDAY WITH STRONG MOUNTAIN AND DESERT WINDS AS
A STRONGER TROUGH MOVES ACROSS SOUTHERN CALIFORNIA. THIS TROUGH MAY
PRODUCE A FEW LIGHT SHOWERS WEST OF THE MOUNTAINS. DRY WITH A
WARMING TREND FOR SUNDAY THROUGH TUESDAY.

&&

.DISCUSSION...FOR EXTREME SOUTHWESTERN CALIFORNIA INCLUDING ORANGE...
SAN DIEGO...WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO
COUNTIES...

MARINE LAYER CLOUDS EXTENDED DEEP INTO THE INLAND VALLEYS THIS
MORNING WITH BASES AROUND 1700 FEET AND TOPS TO 2500 FEET. THE
MARINE LAYER WILL DEEPEN THIS AFTERNOON IN ADVANCE OF AN UPPER LEVEL
TROUGH MOVING INLAND ACROSS CALIFORNIA THIS EVENING. THE BIGGEST
IMPACTS FROM THIS TROUGH WILL BE STRONG WINDS IN THE MOUNTAINS AND
DESERTS WHERE A WIND ADVISORY IS IN EFFECT THROUGH 4 AM WEDNESDAY.
THE STRONGEST WINDS WILL SURFACE LATE THIS AFTERNOON THROUGH EVENING
WITH GUSTS OF 45 TO 55 MPH IN MOST AREAS. PEAK GUSTS MAY EXCEED 60
MPH AT THE WIND PRONE LOCALES LIKE SKY VALLEY AND WHITEWATER IN THE
COACHELLA VALLEY. THE WINDS WILL SUBSIDE QUICKLY OVERNIGHT.

THE MARINE LAYER CLOUDS WILL MIX OUT TONIGHT IN THE COLDER AIR
ALOFT FILLING IN BEHIND THE TROUGH. LOW CLOUD COVER TOMORROW
MORNING WILL BE LESS WIDESPREAD THAN THIS MORNING WITH SCATTERED TO
LOCALLY BROKEN CLOUDS WEST OF THE MOUNTAINS. WEAK RIDGING/ZONAL FLOW
WEDNESDAY INTO THURSDAY FOR WARMER DAYS...LIGHTER WINDS AND A
SHALLOWER MARINE LAYER.

LONG TERM (FRIDAY THROUGH MONDAY)...
LOW PRESSURE CURRENTLY OVER THE ALEUTIAN ISLANDS WILL STRENGTHEN AND
MOVE SOUTHEAST ACROSS THE PACIFIC THROUGH THURSDAY. THIS TROUGH WILL
MAKE LANDFALL IN SOUTHERN CALIFORNIA FRIDAY AFTERNOON/EVENING. THIS
IS A STRONGER TROUGH WITH A MORE SOUTHERLY TRACK THAT WILL BRING
COOLER WEATHER AND GUSTY WINDS FRIDAY AFTERNOON THROUGH SATURDAY.
THE STRONGEST WINDS WILL BE IN THE MTNS AND DESERTS WHERE WIND
ADVISORIES WILL BE NEEDED...OR PERHAPS HIGH WIND WARNINGS. THIS
VIGOROUS TROUGH WILL DRAW PACIFIC MOISTURE INTO SOCAL WITH
PRECIPITABLE WATER INCREASING TO 0.80-0.90...AND THIS LATE SEASON
STORM WILL BRING A DECENT CHANCE FOR SHOWERS ALONG AND WEST OF
THE MOUNTAINS.

THE TROUGH MOVES EAST SATURDAY NIGHT FOR DRY...WARMER WEATHER AND
LIGHTER WINDS SUNDAY. EARLY NEXT WEEK THE LONG RANGE PROGS FORECAST
A HIGH AMPLITUDE RIDGE OVER THE WEST FOR SIGNIFICANTLY WARMER DAYS
MONDAY THROUGH WEDNESDAY.

&&

.AVIATION...
221544Z...COAST/VALLEYS...STRATUS 30-50 SM INLAND WITH BASES
1700-2200 FT MSL AND TOPS 2500-3000 FT MSL WILL SLOWLY CLEAR OUT OF
INLAND AREAS THROUGH 1900 UTC...WITH ONLY PARTIAL CLEARING WITHIN 10
SM OF THE COAST THROUGH 2100 UTC. 2100-23/0200 UTC...UNRESTRICTED
VIS WITH FEW-SCT CLDS 2000-3000 FT MSL 10-50 SM INLAND...AND BKN-SCT
CLDS 2000-3000 FT MSL 0-10 SM INLAND. 23/0200-1500 UTC...PATCHY AND
RANDOM CLDS 30-50 SM INLAND WITH BASES 2000-2500 FT MSL AND TOPS
3000-3500 FT MSL. LOW CONFIDENCE IN OCCURRENCE AND TIMING OF BKN-OVC
CIGS FOR KSAN...KCRQ...KSNA AND KONT. AT THE MOMENT...AM THINKING
TEMPO BKN CIGS FOR A FEW HOURS AT BEST...WITH PREVAILING SCT CIGS.

MTNS/DESERTS...SCT-BKN CLDS AOA 20000 FT MSL THROUGH 23/0400
UTC...BECOMING FEW-SKC THEREAFTER. SW TO W WIND GUSTS 30-45 KT OVER
MTN RIDGES...THROUGH PASSES/CANYONS...AND ALONG DESERT SLOPES AND
INTO FAVORED DESERT AREAS WILL RESULT IN STG-SVR UDDFS/LLWS AND
POSSIBLE ROTORS OVER AND E OR NE OF THE MTNS. MOSTLY UNRESTRICTED
VIS THROUGH WEDNESDAY MORNING...EXCEPT FOR LOCAL VIS AOB 5SM DUE TO
BLOWING DUST/SAND.

&&

.MARINE...
22/0830 AM PDT...A TROUGH OF LOW PRESSURE MOVING INLAND OVER
CALIFORNIA WILL BRING STRONG NORTHWEST WINDS TO THE OUTER WATERS
THROUGH TONIGHT...ALONG WITH A STEEP SHORT-PERIOD WEST-NORTHWEST
SWELL. THE COMBINATION OF STRONG WINDS AND STEEP SEAS WILL CREATE
CONDITIONS HAZARDOUS FOR SMALL CRAFT...AND SO A SMALL CRAFT ADVISORY
WILL GO INTO EFFECT AT 9 AM THIS MORNING AND CONTINUE THROUGH LATE
TONIGHT. SEE LAXMWWSGX FOR MORE DETAILS. WINDS WILL DIMINISH LATE
TONIGHT WHILE SWELL GRADUALLY LOWERS LATER WEDNESDAY.

FRIDAY AFTERNOON THROUGH SATURDAY...ANOTHER TROUGH WILL MOVE
INLAND...BRINGING ANOTHER ROUND OF STRONG NORTHWEST WINDS AND STEEP
WEST-NORTHWEST SWELL...RESULTING IN CONDITIONS HAZARDOUS FOR SMALL
CRAFT ONCE AGAIN. CONFIDENCE IS MODERATE TO HIGH FOR HAZARDOUS
CONDITIONS FOR SMALL CRAFT DURING THIS PERIOD.

&&

.SKYWARN...
SKYWARN ACTIVATION IS NOT REQUESTED. HOWEVER WEATHER SPOTTERS ARE
ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS.

&&

.SGX WATCHES/WARNINGS/ADVISORIES...
CA...WIND ADVISORY FROM 11 AM TODAY TO 4 AM PDT WEDNESDAY FOR
     THE APPLE AND LUCERNE VALLEYS...COACHELLA VALLEY...
     RIVERSIDE COUNTY MOUNTAINS...SAN BERNARDINO COUNTY
     MOUNTAINS...SAN DIEGO COUNTY DESERTS...SAN DIEGO COUNTY
     MOUNTAINS.

PZ...SMALL CRAFT ADVISORY THROUGH 2 AM PDT WEDNESDAY FOR
     THE WATERS FROM SAN MATEO POINT TO THE MEXICAN BORDER
     EXTENDING 30 TO 60 NM OUT INCLUDING SAN CLEMENTE ISLAND.

&&

$$

PUBLIC...MOEDE
AVIATION/MARINE...HARRISON











000
FXUS66 KSGX 221633
AFDSGX

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN DIEGO CA
930 AM PDT TUE APR 22 2014

.SYNOPSIS...
A TROUGH OF LOW PRESSURE MOVING INLAND ACROSS CALIFORNIA WILL BRING
COOLER WEATHER TODAY...ALONG WITH STRONG WEST WINDS IN THE MOUNTAINS
AND DESERTS. WARMER WEDNESDAY AND THURSDAY WITH LIGHTER WINDS.
COOLER FRIDAY AND SATURDAY WITH STRONG MOUNTAIN AND DESERT WINDS AS
A STRONGER TROUGH MOVES ACROSS SOUTHERN CALIFORNIA. THIS TROUGH MAY
PRODUCE A FEW LIGHT SHOWERS WEST OF THE MOUNTAINS. DRY WITH A
WARMING TREND FOR SUNDAY THROUGH TUESDAY.

&&

.DISCUSSION...FOR EXTREME SOUTHWESTERN CALIFORNIA INCLUDING ORANGE...
SAN DIEGO...WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO
COUNTIES...

MARINE LAYER CLOUDS EXTENDED DEEP INTO THE INLAND VALLEYS THIS
MORNING WITH BASES AROUND 1700 FEET AND TOPS TO 2500 FEET. THE
MARINE LAYER WILL DEEPEN THIS AFTERNOON IN ADVANCE OF AN UPPER LEVEL
TROUGH MOVING INLAND ACROSS CALIFORNIA THIS EVENING. THE BIGGEST
IMPACTS FROM THIS TROUGH WILL BE STRONG WINDS IN THE MOUNTAINS AND
DESERTS WHERE A WIND ADVISORY IS IN EFFECT THROUGH 4 AM WEDNESDAY.
THE STRONGEST WINDS WILL SURFACE LATE THIS AFTERNOON THROUGH EVENING
WITH GUSTS OF 45 TO 55 MPH IN MOST AREAS. PEAK GUSTS MAY EXCEED 60
MPH AT THE WIND PRONE LOCALES LIKE SKY VALLEY AND WHITEWATER IN THE
COACHELLA VALLEY. THE WINDS WILL SUBSIDE QUICKLY OVERNIGHT.

THE MARINE LAYER CLOUDS WILL MIX OUT TONIGHT IN THE COLDER AIR
ALOFT FILLING IN BEHIND THE TROUGH. LOW CLOUD COVER TOMORROW
MORNING WILL BE LESS WIDESPREAD THAN THIS MORNING WITH SCATTERED TO
LOCALLY BROKEN CLOUDS WEST OF THE MOUNTAINS. WEAK RIDGING/ZONAL FLOW
WEDNESDAY INTO THURSDAY FOR WARMER DAYS...LIGHTER WINDS AND A
SHALLOWER MARINE LAYER.

LONG TERM (FRIDAY THROUGH MONDAY)...
LOW PRESSURE CURRENTLY OVER THE ALEUTIAN ISLANDS WILL STRENGTHEN AND
MOVE SOUTHEAST ACROSS THE PACIFIC THROUGH THURSDAY. THIS TROUGH WILL
MAKE LANDFALL IN SOUTHERN CALIFORNIA FRIDAY AFTERNOON/EVENING. THIS
IS A STRONGER TROUGH WITH A MORE SOUTHERLY TRACK THAT WILL BRING
COOLER WEATHER AND GUSTY WINDS FRIDAY AFTERNOON THROUGH SATURDAY.
THE STRONGEST WINDS WILL BE IN THE MTNS AND DESERTS WHERE WIND
ADVISORIES WILL BE NEEDED...OR PERHAPS HIGH WIND WARNINGS. THIS
VIGOROUS TROUGH WILL DRAW PACIFIC MOISTURE INTO SOCAL WITH
PRECIPITABLE WATER INCREASING TO 0.80-0.90...AND THIS LATE SEASON
STORM WILL BRING A DECENT CHANCE FOR SHOWERS ALONG AND WEST OF
THE MOUNTAINS.

THE TROUGH MOVES EAST SATURDAY NIGHT FOR DRY...WARMER WEATHER AND
LIGHTER WINDS SUNDAY. EARLY NEXT WEEK THE LONG RANGE PROGS FORECAST
A HIGH AMPLITUDE RIDGE OVER THE WEST FOR SIGNIFICANTLY WARMER DAYS
MONDAY THROUGH WEDNESDAY.

&&

.AVIATION...
221544Z...COAST/VALLEYS...STRATUS 30-50 SM INLAND WITH BASES
1700-2200 FT MSL AND TOPS 2500-3000 FT MSL WILL SLOWLY CLEAR OUT OF
INLAND AREAS THROUGH 1900 UTC...WITH ONLY PARTIAL CLEARING WITHIN 10
SM OF THE COAST THROUGH 2100 UTC. 2100-23/0200 UTC...UNRESTRICTED
VIS WITH FEW-SCT CLDS 2000-3000 FT MSL 10-50 SM INLAND...AND BKN-SCT
CLDS 2000-3000 FT MSL 0-10 SM INLAND. 23/0200-1500 UTC...PATCHY AND
RANDOM CLDS 30-50 SM INLAND WITH BASES 2000-2500 FT MSL AND TOPS
3000-3500 FT MSL. LOW CONFIDENCE IN OCCURRENCE AND TIMING OF BKN-OVC
CIGS FOR KSAN...KCRQ...KSNA AND KONT. AT THE MOMENT...AM THINKING
TEMPO BKN CIGS FOR A FEW HOURS AT BEST...WITH PREVAILING SCT CIGS.

MTNS/DESERTS...SCT-BKN CLDS AOA 20000 FT MSL THROUGH 23/0400
UTC...BECOMING FEW-SKC THEREAFTER. SW TO W WIND GUSTS 30-45 KT OVER
MTN RIDGES...THROUGH PASSES/CANYONS...AND ALONG DESERT SLOPES AND
INTO FAVORED DESERT AREAS WILL RESULT IN STG-SVR UDDFS/LLWS AND
POSSIBLE ROTORS OVER AND E OR NE OF THE MTNS. MOSTLY UNRESTRICTED
VIS THROUGH WEDNESDAY MORNING...EXCEPT FOR LOCAL VIS AOB 5SM DUE TO
BLOWING DUST/SAND.

&&

.MARINE...
22/0830 AM PDT...A TROUGH OF LOW PRESSURE MOVING INLAND OVER
CALIFORNIA WILL BRING STRONG NORTHWEST WINDS TO THE OUTER WATERS
THROUGH TONIGHT...ALONG WITH A STEEP SHORT-PERIOD WEST-NORTHWEST
SWELL. THE COMBINATION OF STRONG WINDS AND STEEP SEAS WILL CREATE
CONDITIONS HAZARDOUS FOR SMALL CRAFT...AND SO A SMALL CRAFT ADVISORY
WILL GO INTO EFFECT AT 9 AM THIS MORNING AND CONTINUE THROUGH LATE
TONIGHT. SEE LAXMWWSGX FOR MORE DETAILS. WINDS WILL DIMINISH LATE
TONIGHT WHILE SWELL GRADUALLY LOWERS LATER WEDNESDAY.

FRIDAY AFTERNOON THROUGH SATURDAY...ANOTHER TROUGH WILL MOVE
INLAND...BRINGING ANOTHER ROUND OF STRONG NORTHWEST WINDS AND STEEP
WEST-NORTHWEST SWELL...RESULTING IN CONDITIONS HAZARDOUS FOR SMALL
CRAFT ONCE AGAIN. CONFIDENCE IS MODERATE TO HIGH FOR HAZARDOUS
CONDITIONS FOR SMALL CRAFT DURING THIS PERIOD.

&&

.SKYWARN...
SKYWARN ACTIVATION IS NOT REQUESTED. HOWEVER WEATHER SPOTTERS ARE
ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS.

&&

.SGX WATCHES/WARNINGS/ADVISORIES...
CA...WIND ADVISORY FROM 11 AM TODAY TO 4 AM PDT WEDNESDAY FOR
     THE APPLE AND LUCERNE VALLEYS...COACHELLA VALLEY...
     RIVERSIDE COUNTY MOUNTAINS...SAN BERNARDINO COUNTY
     MOUNTAINS...SAN DIEGO COUNTY DESERTS...SAN DIEGO COUNTY
     MOUNTAINS.

PZ...SMALL CRAFT ADVISORY THROUGH 2 AM PDT WEDNESDAY FOR
     THE WATERS FROM SAN MATEO POINT TO THE MEXICAN BORDER
     EXTENDING 30 TO 60 NM OUT INCLUDING SAN CLEMENTE ISLAND.

&&

$$

PUBLIC...MOEDE
AVIATION/MARINE...HARRISON










000
FXUS66 KSGX 221043
AFDSGX

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN DIEGO CA
345 AM PDT TUE APR 22 2014

.SYNOPSIS...
THROUGH  EARLY WEDNESDAY...A TROUGH OF LOW PRESSURE WILL MOVE INLAND
ALONG THE WEST COAST BRINGING COOLING...DEEPENING OF THE MARINE
LAYER...AND STRONG GUSTY WEST WINDS IN THE MOUNTAINS AND DESERTS.
WEAKER WINDS WITH WARMING FOR THURSDAY...THEN COOLING AND INCREASING
WEST WINDS FOR FRIDAY. ANOTHER STRONGER TROUGH OF LOW PRESSURE
FRIDAY NIGHT AND SATURDAY WILL BRING COOLING...DEEPENING OF THE
MARINE LAYER...STRONG GUSTY WEST WINDS IN THE MOUNTAINS AND
DESERTS...AND A CHANCE OF PRECIPITATION ALONG AND WEST OF THE
MOUNTAINS. DRY WITH A WARMING TREND FOR SUNDAY INTO THE MIDDLE OF
NEXT WEEK.

&&

.DISCUSSION...FOR EXTREME SOUTHWESTERN CALIFORNIA INCLUDING ORANGE...
SAN DIEGO...WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO
COUNTIES...

.SHORT TERM (TODAY THROUGH THURSDAY)...
A TROUGH OF LOW PRESSURE WILL MOVE INLAND THROUGH CALIFORNIA TODAY
BRINGING STRONGER ONSHORE FLOW WITH COOLING...DEEPENING OF THE
MARINE LAYER...AND STRONG GUSTY WEST WINDS IN THE MOUNTAINS AND
DESERTS. THE MARINE LAYER WAS SLOW TO DEEPEN MONDAY EVENING...BUT IS
NOW STEADILY DEEPENING AND STRATUS SHOULD EXTEND INTO THE FAR INLAND
VALLEYS THIS MORNING. WEST WINDS WILL INCREASE THIS MORNING IN THE
MOUNTAINS AND DESERTS WITH STRONGEST AND MOST WIDESPREAD WINDS FOR
THIS AFTERNOON THROUGH LATE TONIGHT...THEN SUBSIDING INTO WEDNESDAY
MORNING. WINDS WILL GUST TO 55 MPH AT TIMES WITH ISOLATED STRONGER
GUSTS. SLOW WARMING WEDNESDAY WITH GREATER INLAND WARMING AND A
SHALLOWER MARINE LAYER THURSDAY UNDER HIGH PRESSURE.

&&

.LONG TERM (FRIDAY THROUGH MONDAY)...
INCREASING ONSHORE FLOW WILL BRING COOLING AND DEEPENING OF THE
MARINE LAYER FRIDAY. FOR FRIDAY NIGHT THROUGH EARLY SATURDAY...
ANOTHER TROUGH OF LOW PRESSURE WILL MOVE INLAND THROUGH CALIFORNIA
WITH A LITTLE MORE AMPLITUDE THAN THE TROUGH FOR TODAY. THIS WILL
BRING COOLING...STRONG GUSTY WEST WINDS IN THE MOUNTAINS AND
DESERTS...DEEPENING OF THE MARINE LAYER...AND A CHANCE OF
PRECIPITATION ALONG AND WEST OF THE MOUNTAINS. AS THE TROUGH MOVES
EAST...DRY WEATHER AND A WARMING TREND WILL FOLLOW FOR SUNDAY AND
MONDAY. MUCH WARMER WEATHER IS POSSIBLE FOR THE MIDDLE OF NEXT WEEK
AS HIGH PRESSURE SETTLES OVER THE WEST COAST IN AN INCREASINGLY
BLOCKY MID LATITUDE FLOW PATTERN OVER NORTH AMERICA AND THE EASTERN
PACIFIC.

&&

.AVIATION...
220930Z...LOW CLOUDS WILL CONTINUE TO SPREAD INLAND THIS MORNING TO
INCLUDE MUCH OF THE INLAND EMPIRE. CLOUD BASES WILL BE AROUND 1000
FEET ASL...LIFTING TO AROUND 1800 FEET AFTER SUNRISE UNTIL CLEARING
TO THE COAST BY 18Z. KSAN AND KCRQ MAY NOT SCATTER OUT FOR LONG...IF
AT ALL. LOW CLOUDS APPEAR MORE LIKELY DURING THE EVENING ESPECIALLY
IN SAN DIEGO COUNTY...BUT COVERAGE WILL BE MORE PATCHY AND RANDOM.
BASES WILL BE AROUND 2000-2500 FEET ASL.

MOUNTAINS/DESERTS...UNRESTRICTED VIS TODAY AND TONIGHT WITH HIGH
CLOUDS AOA 20000 FEET ASL THIS MORNING. WINDS WILL INCREASE TODAY
WITH LOCAL GUSTS OVER 40 KT NEAR MOUNTAIN RIDGES...SAN GORGONIO
PASS...AND ALONG DESERT SLOPES/ADJACENT DESERT AREAS DURING THE
AFTERNOON THROUGH TONIGHT. THERE WILL BE ASSOCIATED UP/DOWNDRAFTS
AND LLWS OVER AND EAST/NORTHEAST OF THE MOUNTAINS.

&&

.MARINE...22/300 AM PDT...
STRONG NORTHWEST WINDS WILL DEVELOP TODAY AND CONTINUE TONIGHT IN
THE OUTER WATERS. A LARGE NORTHWEST SWELL WILL ARRIVE THIS AFTERNOON
AND EVENING AND PEAK EARLY WEDNESDAY MORNING. THE COMBINATION OF
WINDS AND SWELL WILL MAKE CONDITIONS HAZARDOUS FOR SMALL CRAFT. SEE
LAXMWWSGX FOR DETAILS. WINDS WILL DIMINISH LATE TONIGHT WHILE SWELL
GRADUALLY LOWERS LATER WEDNESDAY.

FRIDAY NIGHT/SATURDAY...EXPECT STRONG NORTHWEST WINDS AND SWELL...
COMBINED WITH A SOUTHERLY SWELL...THAT WOULD MAKE CONDITIONS
PROBABLY HAZARDOUS FOR SMALL CRAFT.

&&

.SKYWARN...
SKYWARN ACTIVATION IS NOT REQUESTED. HOWEVER WEATHER SPOTTERS ARE
ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS.

&&

.SGX WATCHES/WARNINGS/ADVISORIES...
CA...WIND ADVISORY FROM 11 AM THIS MORNING TO 4 AM PDT WEDNESDAY FOR
     THE APPLE AND LUCERNE VALLEYS...COACHELLA VALLEY...
     RIVERSIDE COUNTY MOUNTAINS...SAN BERNARDINO COUNTY
     MOUNTAINS...SAN DIEGO COUNTY DESERTS...SAN DIEGO COUNTY
     MOUNTAINS.

PZ...SMALL CRAFT ADVISORY FROM 9 AM THIS MORNING TO 2 AM PDT
     WEDNESDAY FOR THE WATERS FROM SAN MATEO POINT TO THE
     MEXICAN BORDER EXTENDING 30 TO 60 NM OUT INCLUDING SAN
     CLEMENTE ISLAND.

&&

$$

PUBLIC...17
AVIATION/MARINE...MM










000
FXUS66 KSGX 221043
AFDSGX

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN DIEGO CA
345 AM PDT TUE APR 22 2014

.SYNOPSIS...
THROUGH  EARLY WEDNESDAY...A TROUGH OF LOW PRESSURE WILL MOVE INLAND
ALONG THE WEST COAST BRINGING COOLING...DEEPENING OF THE MARINE
LAYER...AND STRONG GUSTY WEST WINDS IN THE MOUNTAINS AND DESERTS.
WEAKER WINDS WITH WARMING FOR THURSDAY...THEN COOLING AND INCREASING
WEST WINDS FOR FRIDAY. ANOTHER STRONGER TROUGH OF LOW PRESSURE
FRIDAY NIGHT AND SATURDAY WILL BRING COOLING...DEEPENING OF THE
MARINE LAYER...STRONG GUSTY WEST WINDS IN THE MOUNTAINS AND
DESERTS...AND A CHANCE OF PRECIPITATION ALONG AND WEST OF THE
MOUNTAINS. DRY WITH A WARMING TREND FOR SUNDAY INTO THE MIDDLE OF
NEXT WEEK.

&&

.DISCUSSION...FOR EXTREME SOUTHWESTERN CALIFORNIA INCLUDING ORANGE...
SAN DIEGO...WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO
COUNTIES...

.SHORT TERM (TODAY THROUGH THURSDAY)...
A TROUGH OF LOW PRESSURE WILL MOVE INLAND THROUGH CALIFORNIA TODAY
BRINGING STRONGER ONSHORE FLOW WITH COOLING...DEEPENING OF THE
MARINE LAYER...AND STRONG GUSTY WEST WINDS IN THE MOUNTAINS AND
DESERTS. THE MARINE LAYER WAS SLOW TO DEEPEN MONDAY EVENING...BUT IS
NOW STEADILY DEEPENING AND STRATUS SHOULD EXTEND INTO THE FAR INLAND
VALLEYS THIS MORNING. WEST WINDS WILL INCREASE THIS MORNING IN THE
MOUNTAINS AND DESERTS WITH STRONGEST AND MOST WIDESPREAD WINDS FOR
THIS AFTERNOON THROUGH LATE TONIGHT...THEN SUBSIDING INTO WEDNESDAY
MORNING. WINDS WILL GUST TO 55 MPH AT TIMES WITH ISOLATED STRONGER
GUSTS. SLOW WARMING WEDNESDAY WITH GREATER INLAND WARMING AND A
SHALLOWER MARINE LAYER THURSDAY UNDER HIGH PRESSURE.

&&

.LONG TERM (FRIDAY THROUGH MONDAY)...
INCREASING ONSHORE FLOW WILL BRING COOLING AND DEEPENING OF THE
MARINE LAYER FRIDAY. FOR FRIDAY NIGHT THROUGH EARLY SATURDAY...
ANOTHER TROUGH OF LOW PRESSURE WILL MOVE INLAND THROUGH CALIFORNIA
WITH A LITTLE MORE AMPLITUDE THAN THE TROUGH FOR TODAY. THIS WILL
BRING COOLING...STRONG GUSTY WEST WINDS IN THE MOUNTAINS AND
DESERTS...DEEPENING OF THE MARINE LAYER...AND A CHANCE OF
PRECIPITATION ALONG AND WEST OF THE MOUNTAINS. AS THE TROUGH MOVES
EAST...DRY WEATHER AND A WARMING TREND WILL FOLLOW FOR SUNDAY AND
MONDAY. MUCH WARMER WEATHER IS POSSIBLE FOR THE MIDDLE OF NEXT WEEK
AS HIGH PRESSURE SETTLES OVER THE WEST COAST IN AN INCREASINGLY
BLOCKY MID LATITUDE FLOW PATTERN OVER NORTH AMERICA AND THE EASTERN
PACIFIC.

&&

.AVIATION...
220930Z...LOW CLOUDS WILL CONTINUE TO SPREAD INLAND THIS MORNING TO
INCLUDE MUCH OF THE INLAND EMPIRE. CLOUD BASES WILL BE AROUND 1000
FEET ASL...LIFTING TO AROUND 1800 FEET AFTER SUNRISE UNTIL CLEARING
TO THE COAST BY 18Z. KSAN AND KCRQ MAY NOT SCATTER OUT FOR LONG...IF
AT ALL. LOW CLOUDS APPEAR MORE LIKELY DURING THE EVENING ESPECIALLY
IN SAN DIEGO COUNTY...BUT COVERAGE WILL BE MORE PATCHY AND RANDOM.
BASES WILL BE AROUND 2000-2500 FEET ASL.

MOUNTAINS/DESERTS...UNRESTRICTED VIS TODAY AND TONIGHT WITH HIGH
CLOUDS AOA 20000 FEET ASL THIS MORNING. WINDS WILL INCREASE TODAY
WITH LOCAL GUSTS OVER 40 KT NEAR MOUNTAIN RIDGES...SAN GORGONIO
PASS...AND ALONG DESERT SLOPES/ADJACENT DESERT AREAS DURING THE
AFTERNOON THROUGH TONIGHT. THERE WILL BE ASSOCIATED UP/DOWNDRAFTS
AND LLWS OVER AND EAST/NORTHEAST OF THE MOUNTAINS.

&&

.MARINE...22/300 AM PDT...
STRONG NORTHWEST WINDS WILL DEVELOP TODAY AND CONTINUE TONIGHT IN
THE OUTER WATERS. A LARGE NORTHWEST SWELL WILL ARRIVE THIS AFTERNOON
AND EVENING AND PEAK EARLY WEDNESDAY MORNING. THE COMBINATION OF
WINDS AND SWELL WILL MAKE CONDITIONS HAZARDOUS FOR SMALL CRAFT. SEE
LAXMWWSGX FOR DETAILS. WINDS WILL DIMINISH LATE TONIGHT WHILE SWELL
GRADUALLY LOWERS LATER WEDNESDAY.

FRIDAY NIGHT/SATURDAY...EXPECT STRONG NORTHWEST WINDS AND SWELL...
COMBINED WITH A SOUTHERLY SWELL...THAT WOULD MAKE CONDITIONS
PROBABLY HAZARDOUS FOR SMALL CRAFT.

&&

.SKYWARN...
SKYWARN ACTIVATION IS NOT REQUESTED. HOWEVER WEATHER SPOTTERS ARE
ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS.

&&

.SGX WATCHES/WARNINGS/ADVISORIES...
CA...WIND ADVISORY FROM 11 AM THIS MORNING TO 4 AM PDT WEDNESDAY FOR
     THE APPLE AND LUCERNE VALLEYS...COACHELLA VALLEY...
     RIVERSIDE COUNTY MOUNTAINS...SAN BERNARDINO COUNTY
     MOUNTAINS...SAN DIEGO COUNTY DESERTS...SAN DIEGO COUNTY
     MOUNTAINS.

PZ...SMALL CRAFT ADVISORY FROM 9 AM THIS MORNING TO 2 AM PDT
     WEDNESDAY FOR THE WATERS FROM SAN MATEO POINT TO THE
     MEXICAN BORDER EXTENDING 30 TO 60 NM OUT INCLUDING SAN
     CLEMENTE ISLAND.

&&

$$

PUBLIC...17
AVIATION/MARINE...MM











000
FXUS66 KSGX 220422
AFDSGX

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN DIEGO CA
930 PM PDT MON APR 21 2014

.SYNOPSIS...
COOLER TUESDAY WITH A DEEPER MARINE LAYER AND STRONG GUSTY WEST
WINDS IN THE MOUNTAINS AND DESERTS. WEAKER WINDS AND MINOR WARMING
FOR WEDNESDAY AND THURSDAY. A STRONGER TROUGH OF LOW PRESSURE FRIDAY
AND SATURDAY WILL BRING COOLING...A DEEPER MARINE LAYER...STRONG
GUSTY WEST WINDS IN THE MOUNTAINS AND DESERTS...AND A CHANCE OF
PRECIPITATION. DRY WITH SLOW WARMING FOR SUNDAY INTO NEXT MONDAY.

&&

.DISCUSSION...FOR EXTREME SOUTHWESTERN CALIFORNIA INCLUDING ORANGE...
SAN DIEGO...WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO
COUNTIES...

LOW CLOUDS ARE ALREADY BEGINNING TO PUSH INTO THE FAR WESTERN
VALLEYS AND A LARGE BAND OF HIGH CLOUDS AHEAD OF AN UPPER LEVEL
TROUGH WAS MOVING OVER THE REGION. THE MARINE LAYER WILL DEEPEN
TONIGHT AS THE TROUGH APPROACHES...WITH LOW CLOUDS AND FOG SPREADING
INTO THE INLAND VALLEYS OVERNIGHT.

FOR TUE INTO EARLY WED...THE LOW PRESSURE TROUGH MOVING INLAND WILL
BRING STRONG AND GUSTY WEST WINDS TO THE MOUNTAINS AND DESERTS.
WINDS WILL PEAK LATE TUE INTO WED MORNING WITH GUSTS MOSTLY AROUND
50 MPH...WITH ISOLATED GUSTS TO 60 MPH IN THE NORTHERN COACHELLA
VALLEY AND SOUTHEASTERN PORTION OF SAN DIEGO COUNTY. OTHERWISE
EXPECT COOLING INLAND WITH HIGH TEMPS ABOUT 10 TO 15 DEGREES LOWER
THAN TODAY...AND ABOUT 3 TO 5 DEGREES LOWER ALONG THE IMMEDIATE
COAST.

WEAK RIDGING BEHIND THE DEPARTING TROUGH WILL BRING MINOR WARMING
AND LIGHTER ONSHORE WINDS WEDNESDAY AND THURSDAY. ANY MARINE LOW
CLOUDS AND FOG WILL BE CONFINED TO THE COASTAL AREAS AND FAR WESTERN
VALLEYS.

FOR FRI AND SAT...A SECOND UPPER LEVEL TROUGH MOVING IN FROM THE
NORTHWEST WILL DEEPEN THE MARINE LAYER FOR MORE WIDESPREAD LOW
CLOUDS WEST OF THE MTNS...AND BRING MORE COOLING ALONG WITH GUSTY
WEST WINDS IN THE MOUNTAINS AND DESERTS. THERE IS A CHANCE OF
PRECIPITATION ALONG AND WEST OF THE MOUNTAINS AS THE TROUGH MOVES
INLAND LATE FRIDAY INTO SATURDAY MORNING WITH SNOW LEVELS LOWERING
TO 5500 AND 6000 FT. THE 18 AND 00Z GFS SOLUTIONS HAS COME MORE IN
LINE WITH RECENT RUNS OF THE EC...KEEPING A QUICK MOVING OPEN WAVE
TROUGH AS OPPOSED TO A CLOSED-LOW DEVELOPING OVER SOUTHERN CA. THE
00Z GFS IS ALSO CONSIDERABLY DRIER THAN PREVIOUS RUNS. AT THIS TIME
IT LOOKS LIKE ANY PRECIPITATION WILL BE SHOWERY AND LIGHT.

WARMER AND DRIER WEATHER WILL DEVELOP FOR SUNDAY INTO EARLY NEXT
WEEK AS A RIDGE OF HIGH PRESSURE AMPLIFIES ALONG THE WEST COAST AND
OFFSHORE FLOW DEVELOPS.


&&

.AVIATION...
220415Z...COAST/VALLEYS...AREAS OF STRATUS WILL CONTINUE TO SPREAD
INLAND OVERNIGHT...REACHING MANY OF THE VALLEYS...INCLUDING WEST AND
SOUTH PARTS OF THE INLAND EMPIRE BY 12Z. CLOUD BASES WILL BE
1000-1200 FT MSL THIS EVENING...RISING TO 2000 FT MSL OR MORE BY TUE
MORNING. TOPS WILL BE 2500-3000 FT MSL BY TUE MORNING. MOST VIS WILL
REMAIN 5+ MILES EXCEPT NEAR TERRAIN OBSCURATIONS ABOVE THE VALLEYS
LATE TONIGHT. CLEARING WILL BE SLOW TUE...MAINLY 16-18Z IN THE
VALLEYS AND 18-20Z NEAR THE COAST...WITH SOME LOCATIONS WITHIN 5 MI
OF THE COAST REMAINING MOSTLY CLOUDY TUE AFTERNOON. STRATUS WILL BE
MORE PATCHY TUE NIGHT. OTHERWISE...SCT-BKN CLOUDS ABOVE 20000 FT MSL
WILL PREVAIL THROUGH TUE.

MTNS/DESERTS...UNRESTRICTED VIS THROUGH TUE WITH SCT-BKN CLOUDS
ABOVE 20000 FT MSL. WINDS WILL INCREASE TUE WITH LOCAL SFC GUSTS
OVER 40 KT NEAR MTN RIDGES...SAN GORGONIO PASS...AND ALONG DESERT
SLOPES/ADJACENT DESERT AREAS MAINLY AFTER 18Z TUE. THERE WILL BE
ASSOCIATED UP/DOWNDRAFTS AND LLWS OVER AND E/NE OF THE MTNS.

&&

.MARINE...
A TROUGH MOVING THROUGH CALIFORNIA WILL BRING STRONG WEST TO
NORTHWEST WINDS TUESDAY AND TUESDAY NIGHT FOR THE OUTER
WATERS...WITH GUSTS AROUND 25 KNOTS. ALSO...FRESH SHORT-PERIOD WEST
TO NORTHWEST SWELL WILL ARRIVE TUESDAY AFTERNOON AND EVENING AND
PEAK EARLY WEDNESDAY MORNING. THE COMBINATION OF WINDS AND SWELL
WILL MAKE CONDITIONS HAZARDOUS FOR SMALL CRAFT. A SMALL CRAFT
ADVISORY GOES INTO EFFECT FOR THE OUTER COASTAL WATERS AT 9 AM
TUESDAY AND CONTINUES THROUGH 2 AM WEDNESDAY. SEE LAXMWWSGX FOR
DETAILS. WINDS WILL DIMINISH LATE TUESDAY NIGHT WHILE SWELL
GRADUALLY LOWERS LATER WEDNESDAY.

FRIDAY NIGHT/SATURDAY...ANOTHER TROUGH WILL BRING SIMILAR CONDITIONS
AGAIN WITH INCREASING WINDS AND SHORT-PERIOD SWELL FROM THE WEST TO
NORTHWEST.

&&

.SGX WATCHES/WARNINGS/ADVISORIES...
CA...WIND ADVISORY FROM 11 AM TUESDAY TO 8 AM PDT WEDNESDAY FOR THE
     APPLE AND LUCERNE VALLEYS...COACHELLA VALLEY...RIVERSIDE
     COUNTY MOUNTAINS...SAN BERNARDINO COUNTY MOUNTAINS...SAN
     DIEGO COUNTY DESERTS...SAN DIEGO COUNTY MOUNTAINS.

PZ...SMALL CRAFT ADVISORY FROM 9 AM TUESDAY TO 2 AM PDT WEDNESDAY
FOR      THE WATERS FROM SAN MATEO POINT TO THE MEXICAN BORDER
EXTENDING 30 TO 60 NM OUT INCLUDING SAN CLEMENTE ISLAND.


&&

$$

PUBLIC...SS
AVIATION/MARINE...MAXWELL






000
FXUS66 KSGX 220422
AFDSGX

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN DIEGO CA
930 PM PDT MON APR 21 2014

.SYNOPSIS...
COOLER TUESDAY WITH A DEEPER MARINE LAYER AND STRONG GUSTY WEST
WINDS IN THE MOUNTAINS AND DESERTS. WEAKER WINDS AND MINOR WARMING
FOR WEDNESDAY AND THURSDAY. A STRONGER TROUGH OF LOW PRESSURE FRIDAY
AND SATURDAY WILL BRING COOLING...A DEEPER MARINE LAYER...STRONG
GUSTY WEST WINDS IN THE MOUNTAINS AND DESERTS...AND A CHANCE OF
PRECIPITATION. DRY WITH SLOW WARMING FOR SUNDAY INTO NEXT MONDAY.

&&

.DISCUSSION...FOR EXTREME SOUTHWESTERN CALIFORNIA INCLUDING ORANGE...
SAN DIEGO...WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO
COUNTIES...

LOW CLOUDS ARE ALREADY BEGINNING TO PUSH INTO THE FAR WESTERN
VALLEYS AND A LARGE BAND OF HIGH CLOUDS AHEAD OF AN UPPER LEVEL
TROUGH WAS MOVING OVER THE REGION. THE MARINE LAYER WILL DEEPEN
TONIGHT AS THE TROUGH APPROACHES...WITH LOW CLOUDS AND FOG SPREADING
INTO THE INLAND VALLEYS OVERNIGHT.

FOR TUE INTO EARLY WED...THE LOW PRESSURE TROUGH MOVING INLAND WILL
BRING STRONG AND GUSTY WEST WINDS TO THE MOUNTAINS AND DESERTS.
WINDS WILL PEAK LATE TUE INTO WED MORNING WITH GUSTS MOSTLY AROUND
50 MPH...WITH ISOLATED GUSTS TO 60 MPH IN THE NORTHERN COACHELLA
VALLEY AND SOUTHEASTERN PORTION OF SAN DIEGO COUNTY. OTHERWISE
EXPECT COOLING INLAND WITH HIGH TEMPS ABOUT 10 TO 15 DEGREES LOWER
THAN TODAY...AND ABOUT 3 TO 5 DEGREES LOWER ALONG THE IMMEDIATE
COAST.

WEAK RIDGING BEHIND THE DEPARTING TROUGH WILL BRING MINOR WARMING
AND LIGHTER ONSHORE WINDS WEDNESDAY AND THURSDAY. ANY MARINE LOW
CLOUDS AND FOG WILL BE CONFINED TO THE COASTAL AREAS AND FAR WESTERN
VALLEYS.

FOR FRI AND SAT...A SECOND UPPER LEVEL TROUGH MOVING IN FROM THE
NORTHWEST WILL DEEPEN THE MARINE LAYER FOR MORE WIDESPREAD LOW
CLOUDS WEST OF THE MTNS...AND BRING MORE COOLING ALONG WITH GUSTY
WEST WINDS IN THE MOUNTAINS AND DESERTS. THERE IS A CHANCE OF
PRECIPITATION ALONG AND WEST OF THE MOUNTAINS AS THE TROUGH MOVES
INLAND LATE FRIDAY INTO SATURDAY MORNING WITH SNOW LEVELS LOWERING
TO 5500 AND 6000 FT. THE 18 AND 00Z GFS SOLUTIONS HAS COME MORE IN
LINE WITH RECENT RUNS OF THE EC...KEEPING A QUICK MOVING OPEN WAVE
TROUGH AS OPPOSED TO A CLOSED-LOW DEVELOPING OVER SOUTHERN CA. THE
00Z GFS IS ALSO CONSIDERABLY DRIER THAN PREVIOUS RUNS. AT THIS TIME
IT LOOKS LIKE ANY PRECIPITATION WILL BE SHOWERY AND LIGHT.

WARMER AND DRIER WEATHER WILL DEVELOP FOR SUNDAY INTO EARLY NEXT
WEEK AS A RIDGE OF HIGH PRESSURE AMPLIFIES ALONG THE WEST COAST AND
OFFSHORE FLOW DEVELOPS.


&&

.AVIATION...
220415Z...COAST/VALLEYS...AREAS OF STRATUS WILL CONTINUE TO SPREAD
INLAND OVERNIGHT...REACHING MANY OF THE VALLEYS...INCLUDING WEST AND
SOUTH PARTS OF THE INLAND EMPIRE BY 12Z. CLOUD BASES WILL BE
1000-1200 FT MSL THIS EVENING...RISING TO 2000 FT MSL OR MORE BY TUE
MORNING. TOPS WILL BE 2500-3000 FT MSL BY TUE MORNING. MOST VIS WILL
REMAIN 5+ MILES EXCEPT NEAR TERRAIN OBSCURATIONS ABOVE THE VALLEYS
LATE TONIGHT. CLEARING WILL BE SLOW TUE...MAINLY 16-18Z IN THE
VALLEYS AND 18-20Z NEAR THE COAST...WITH SOME LOCATIONS WITHIN 5 MI
OF THE COAST REMAINING MOSTLY CLOUDY TUE AFTERNOON. STRATUS WILL BE
MORE PATCHY TUE NIGHT. OTHERWISE...SCT-BKN CLOUDS ABOVE 20000 FT MSL
WILL PREVAIL THROUGH TUE.

MTNS/DESERTS...UNRESTRICTED VIS THROUGH TUE WITH SCT-BKN CLOUDS
ABOVE 20000 FT MSL. WINDS WILL INCREASE TUE WITH LOCAL SFC GUSTS
OVER 40 KT NEAR MTN RIDGES...SAN GORGONIO PASS...AND ALONG DESERT
SLOPES/ADJACENT DESERT AREAS MAINLY AFTER 18Z TUE. THERE WILL BE
ASSOCIATED UP/DOWNDRAFTS AND LLWS OVER AND E/NE OF THE MTNS.

&&

.MARINE...
A TROUGH MOVING THROUGH CALIFORNIA WILL BRING STRONG WEST TO
NORTHWEST WINDS TUESDAY AND TUESDAY NIGHT FOR THE OUTER
WATERS...WITH GUSTS AROUND 25 KNOTS. ALSO...FRESH SHORT-PERIOD WEST
TO NORTHWEST SWELL WILL ARRIVE TUESDAY AFTERNOON AND EVENING AND
PEAK EARLY WEDNESDAY MORNING. THE COMBINATION OF WINDS AND SWELL
WILL MAKE CONDITIONS HAZARDOUS FOR SMALL CRAFT. A SMALL CRAFT
ADVISORY GOES INTO EFFECT FOR THE OUTER COASTAL WATERS AT 9 AM
TUESDAY AND CONTINUES THROUGH 2 AM WEDNESDAY. SEE LAXMWWSGX FOR
DETAILS. WINDS WILL DIMINISH LATE TUESDAY NIGHT WHILE SWELL
GRADUALLY LOWERS LATER WEDNESDAY.

FRIDAY NIGHT/SATURDAY...ANOTHER TROUGH WILL BRING SIMILAR CONDITIONS
AGAIN WITH INCREASING WINDS AND SHORT-PERIOD SWELL FROM THE WEST TO
NORTHWEST.

&&

.SGX WATCHES/WARNINGS/ADVISORIES...
CA...WIND ADVISORY FROM 11 AM TUESDAY TO 8 AM PDT WEDNESDAY FOR THE
     APPLE AND LUCERNE VALLEYS...COACHELLA VALLEY...RIVERSIDE
     COUNTY MOUNTAINS...SAN BERNARDINO COUNTY MOUNTAINS...SAN
     DIEGO COUNTY DESERTS...SAN DIEGO COUNTY MOUNTAINS.

PZ...SMALL CRAFT ADVISORY FROM 9 AM TUESDAY TO 2 AM PDT WEDNESDAY
FOR      THE WATERS FROM SAN MATEO POINT TO THE MEXICAN BORDER
EXTENDING 30 TO 60 NM OUT INCLUDING SAN CLEMENTE ISLAND.


&&

$$

PUBLIC...SS
AVIATION/MARINE...MAXWELL







000
FXUS66 KSGX 212026
AFDSGX

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN DIEGO CA
126 PM PDT MON APR 21 2014

.SYNOPSIS...
A LITTLE COOLER FOR TUESDAY AND WEDNESDAY...WITH A DEEPER
MARINE LAYER AND STRONG GUSTY WEST WINDS IN THE MOUNTAINS AND
DESERTS. WEAKER WINDS AND MODEST WARMING FOR THURSDAY AND FRIDAY. A
STRONGER TROUGH OF LOW PRESSURE FRIDAY NIGHT AND SATURDAY WILL BRING
COOLING...DEEPENING OF THE MARINE LAYER...STRONG GUSTY WEST WINDS IN
THE MOUNTAINS AND DESERTS...AND A CHANCE OF PRECIPITATION. DRY WITH
SLOW WARMING FOR SUNDAY INTO NEXT MONDAY.

&&

.DISCUSSION...FOR EXTREME SOUTHWESTERN CALIFORNIA INCLUDING ORANGE...
SAN DIEGO...WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO
COUNTIES...

THE LOW CLOUDS AND FOG CLEARED TO THE BEACHES EARLIER...BUT LOW
CLOUDS ARE ALREADY BEGINNING TO PUSH INLAND WITH THE SEA BREEZE.

A COASTAL EDDY SHOULD REDEVELOP TONIGHT AND THE MARINE LAYER DEEPEN
AHEAD OF A LOW PRESSURE TROUGH APPROACHING FROM THE NORTHWEST. THIS
WILL CAUSE LOW CLOUDS TO SPREAD INLAND TO THE COASTAL SLOPES BY TUE
MORNING...WITH AREAS OF FOG WHERE CLOUDS AND TERRAIN INTERSECT.

FOR TUE AND WED...IN ADDITION TO THE DEEPENING MARINE LAYER AND MORE
EXTENSIVE LOW CLOUDS WEST OF THE MTNS...THE LOW PRESSURE TROUGH
MOVING INLAND WILL BRING STRONG AND GUSTY WEST TO NORTHWEST WINDS IN
THE MOUNTAINS AND DESERTS. IT WILL ALSO BRING ENOUGH COOLING SO THAT
DAYTIME TEMPS WILL BE NEAR OR ONLY A FEW DEGREES ABOVE SEASONAL
AVERAGES. THE WINDS WILL BE STRONGEST LATE TUE INTO WED MORNING WITH
GUSTS MOSTLY AROUND 50 MPH...BUT LOCAL GUSTS TO 60 MPH ARE
EXPECTED IN THE MORE WIND-PRONE AREAS.

AS THE TROUGH MOVES EAST...A WEAK TRANSIENT RIDGE WILL BRING MOSTLY
FAIR CONDITIONS ON THURSDAY...WITH WEAKER WINDS AND DAYTIME
TEMPERATURES SLIGHTLY ABOVE SEASONAL AVERAGES.

FOR FRI...ANOTHER LOW PRESSURE TROUGH MOVING IN FROM THE NORTHWEST
WILL BRING INCREASING ONSHORE FLOW...A DEEPER MARINE LAYER FOR MORE
WIDESPREAD LOW CLOUDS WEST OF THE MTNS...GUSTY WEST WINDS IN THE
MOUNTAINS AND DESERTS...AND LOWER TEMPERATURES.

AS THE LOW PRESSURE TROUGH MOVES INLAND ON SAT...IT WILL CONTINUE
THE COOLING TREND...WITH INCREASING CLOUDS AND A CHANCE FOR
PRECIPITATION ALONG AND WEST OF THE MOUNTAINS. SNOW LEVELS COULD
LOWER TO BETWEEN 5000 AND 6000 FT. GUSTY WEST TO NORTHWEST WINDS
WILL CONTINUE IN THE MTNS AND DESERTS. NUMERICAL MODELS REMAIN IN
POOR AGREEMENT REGARDING THE TRACK AND INTENSITY OF THE TROUGH. AS
A RESULT...IT IS STILL UNCERTAIN AS TO HOW MUCH PRECIP WILL FALL
AS WELL AS THE GEOGRAPHIC DISTRIBUTION.

DRY WITH A WARMING TREND AND WEAKER WINDS FOR SUN AND MON AS THE
TROUGH MOVES EAST AND A HIGH PRESSURE RIDGE BUILDS IN FROM THE WEST.

&&

.AVIATION...
212012Z...COAST/VALLEYS...THROUGH 22/0000 UTC...MOSTLY UNRESTRICTED
VIS...WITH FEW-SCT CLDS...AND POSSIBLY BKN IN SOME LOCATIONS...IN
THE 800-1200 FT MSL LAYER WITHIN 3 SM OF THE COAST. 22/0000-0600
UTC...STRATUS MOVING BACK INLAND 15-20 SM...AND EVENTUALLY MOVING
20-35 SM INLAND BY 22/1200 UTC. CONFIDENCE MODERATE TO HIGH ON
TIMING. BASES/TOPS WILL BE 800-1200 FT MSL/1500-1700 FT MSL DURING
THE 22/0000-0600 UTC TIME-FRAME...THEN RISING TO 1200-1600 FT
MSL/1800-2200 FT MSL DURING THE 22/0600-1500 UTC TIME-FRAME. EXPECT
AREAS OF VIS 3-5SM WITH LOCAL VIS AOB 1SM 10-35 SM INLAND. SLOW
CLEARING OF STRATUS 22/1600-2100 UTC.

MTNS/DESERTS...SKC THROUGH 2300 UTC...THEN FEW-SCT CLDS AOA 20000 FT
MSL 2300-22/1500 UTC. UNRESTRICTED VIS THROUGH TUESDAY MORNING.
STARTING 22/0300 UTC...SW TO W WIND GUSTS 25-35 KT OVER MTN
RIDGES...THROUGH PASSES/CANYONS...AND ALONG DESERT SLOPES AND INTO
FAVORED DESERT AREAS WILL RESULT IN MOD-STG UDDFS/LLWS OVER AND E OR
NE OF THE MTNS.

&&

.MARINE...
A TROUGH MOVING INLAND OVER CALIFORNIA WILL BRING STRONG WEST TO
NORTHWEST WINDS TUESDAY AND TUESDAY NIGHT FOR THE OUTER WATERS.
ALSO...FRESH SHORT-PERIOD WEST TO NORTHWEST SWELL WILL ARRIVE
TUESDAY AFTERNOON AND EVENING AND PEAK EARLY WEDNESDAY MORNING. THE
COMBINATION OF WINDS AND SWELL WILL MAKE CONDITIONS HAZARDOUS FOR
SMALL CRAFT. A SMALL CRAFT ADVISORY GOES INTO EFFECT FOR THE OUTER
COASTAL WATERS AT 9 AM TUESDAY AND CONTINUES THROUGH 2 AM WEDNESDAY.
SEE LAXMWWSGX FOR DETAILS. WINDS WILL DIMINISH RAPIDLY LATE TUESDAY
NIGHT WHILE SWELL GRADUALLY LOWERS LATER WEDNESDAY.

FRIDAY AND SATURDAY...FAIRLY HIGH CONFIDENCE THAT ANOTHER WEATHER
SYSTEM WILL BRING MORE STRONG WINDS AND LARGE SWELL...RESULTING IN
HAZARDOUS CONDITIONS FOR SMALL CRAFT ONCE AGAIN. ALSO...ELEVATED TO
POSSIBLY HIGH SURF CONDITIONS MAY OCCUR SATURDAY AND SUNDAY DUE TO A
COMBINATION OF THE STEEP WEST-NORTHWEST SWELL AND A MODERATE
LONG-PERIOD SOUTH SWELL.


&&

.SGX WATCHES/WARNINGS/ADVISORIES...
CA...WIND ADVISORY FROM 11 AM TUESDAY TO 8 AM PDT WEDNESDAY FOR THE
     APPLE AND LUCERNE VALLEYS...COACHELLA VALLEY...RIVERSIDE
     COUNTY MOUNTAINS...SAN BERNARDINO COUNTY MOUNTAINS...SAN
     DIEGO COUNTY DESERTS...SAN DIEGO COUNTY MOUNTAINS.

PZ...SMALL CRAFT ADVISORY FROM 9 AM TUESDAY TO 2 AM PDT WEDNESDAY FOR
     THE WATERS FROM SAN MATEO POINT TO THE MEXICAN BORDER
     EXTENDING 30 TO 60 NM OUT INCLUDING SAN CLEMENTE ISLAND.


&&

$$

PUBLIC...PG
AVIATION/MARINE...HARRISON






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