No Warnings

Expires:No;;035243
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

Expires:No;;036089
SXUS86 KSGX 240454
CGRSGX
COASTAL WEATHER OBSERVATIONS
NATIONAL WEATHER SERVICE SAN DIEGO CA
1000 PM PDT WED APR 23 2014
ID   /WX VSB  / WIND   / WAVE / SEA/ AIR/ PRESS/ REMARKS   STATION
3L3  PC10     / CALM   /      /    / 61 /      /           NEWPORT BEACH