803
FXUS66 KSGX 190414
AFDSGX
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN DIEGO CA
814 PM PST TUE FEB 18 2025
SYNOPSIS
WARMER CONDITIONS ARE EXPECTED FOR WEDNESDAY. BY THURSDAY AND
FRIDAY, WEAK OFFSHORE FLOW WILL BRING WARMER CONDITIONS TO THE
COAST AND VALLEYS, WITH A FEW DEGREES OF COOLING IN THE MOUNTAINS
AND DESERTS. GUSTY NORTH WINDS WILL OCCUR ALONG AND BELOW THE
COASTAL SLOPES OF THE MOUNTAINS WITH THE STRONGER GUSTS 35 MPH,
LOCALLY UP TO 45 MPH. PATCHY LOW CLOUD AND FOG COVERAGE IS
EXPECTED FOR THE NEXT FEW NIGHTS NEAR THE COAST. WIDESPREAD ABOVE
AVERAGE TEMPERATURES ARE EXPECTED FOR SATURDAY THROUGH TUESDAY.
DISCUSSION...FOR EXTREME SOUTHWESTERN CALIFORNIA INCLUDING ORANGE
SAN DIEGO...WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO
COUNTIES...
EVENING UPDATE
SATELLITE THIS EVENING SHOWS HIGH CLOUD MOVING IN FROM THE NORTH,
WHILE LOW CLOUDS BEGIN TO FORM OFF THE COAST OF NORTHERN BAJA
CALIFORNIA. LATEST MODEL DATE INDICATES CONTINUED INCREASE CLOUD
COVERAGE OVER THE WATER AND EVENTUALLY WITHIN 10 MILES OF THE
COAST BY THE EARLY MORNING HOURS ON WEDNESDAY. HREF PROBABILITIES
POINT TO AROUND A 30-60% CHANCE OF MOSTLY CLOUDY CONDITIONS BY
THIS TIME. SOME CLOUDS MAY STICK TO THE BEACHES BY LATE MORNING
AND AFTERNOON. THE FORECAST REMAINS ON TRACK FOR WARMER AND
BREEZIER WEATHER THROUGH THE REST OF THE WEEK WITH DRY TIMES AHEAD
INTO AT LEAST THE MIDDLE OF NEXT WEEK.
PREVIOUS DISCUSSION (131 PM TUESDAY)
LOW CLOUD COVERAGE IS EXPECTED TO BECOME PATCHIER AND CONFINED TO
THE COAST, LOCALLY WESTERN VALLEYS OVER THE NEXT FEW NIGHTS. A WEAK
COASTAL EDDY THROUGH THURSDAY WILL KEEP SOME LOW CLOUDS AND FOG
PRESENT. BY FRIDAY, WEAK OFFSHORE FLOW WILL PREVAIL, WHICH WILL KEEP
LOW CLOUDS AND FOG ABSENT FROM THE COAST THROUGH THE WEEKEND.
IT WILL BE COOLER INLAND TODAY AND A LITTLE WARMER ON WEDNESDAY.
COASTAL AREAS WILL WARM A FEW DEGREES EACH DAY THURSDAY AND FRIDAY
WITH A FEW DEGREES OF COOLING IN THE MOUNTAINS AND DESERTS. FOR
THURSDAY AND FRIDAY THERE WILL BE WEAK OFFSHORE FLOW WITH GUSTY
NORTH WINDS ALONG AND BELOW THE COASTAL SLOPES OF THE MOUNTAINS WITH
PEAK GUSTS 35, LOCALLY UP TO 45 MPH.
HIGH PRESSURE ALOFT ACROSS CALIFORNIA WILL BRING A WARMING TREND
SATURDAY THROUGH TUESDAY. HIGH TEMPERATURES WILL BE AROUND 5 DEGREES
ABOVE AVERAGE NEAR THE COAST TO 15 TO 20 DEGREES ABOVE AVERAGE FOR
THE MOUNTAINS. HIGH TEMPERATURES ON MONDAY AND TUESDAY WILL BE
AROUND 70 NEAR THE COAST TO THE MID 70S TO LOWER 80S FOR THE VALLEYS
AND IN UPPER 80S TO LOW 90S FOR THE LOWER DESERTS.
AVIATION
190400Z...COAST/VALLEYS...LOW CLOUDS REDEVELOP LATE THIS EVENING,
MOVING INTO COASTAL REGIONS 09-12Z WED. LOWER BASES, AROUND 600-1000
FT MSL, AND PATCHIER CIG, WHICH MAY ALSO EXTENDED INTO PORTIONS OF
THE INLAND VALLEYS. LOCALIZED VIS REDUCTIONS POSSIBLE WHERE TERRAIN
INTERSECTS CLOUDS DOWN TO 3-6SM. SCATTER OUT TO THE COAST 17-18Z
WED. BASES OF AROUND 800-1300 FT MSL WILL FILL IN SOONER TOMORROW
EVENING, BY AROUND 04-06Z THUR. THIS WILL CONTINUE TO SPREAD INLAND
TOMORROW NIGHT WITH MORE CIG COVERAGE EXPECTED.
MOUNTAINS/DESERTS...SCT-BKN HIGH CLOUDS ABOVE 25,000 FT MSL AND VFR
CONDITIONS THROUGH WEDNESDAY.
MARINE
NO HAZARDOUS MARINE CONDITIONS ARE ANTICIPATED THROUGH SATURDAY.
BEACHES
A LONG-PERIOD IS GENERATING ELEVATED SURF - ESPECIALLY FOR WEST
FACING BEACHES - WITH SETS TO 6-7 FEET, A HIGH RIP CURRENT RISK, AND
SOME DANGEROUS SWIMMING CONDITIONS. SWELL AND SURF EASE SOMEWHAT BY
WEDNESDAY, REMAINING ELEVATED THROUGH THURSDAY.
SKYWARN
SKYWARN ACTIVATION IS NOT REQUESTED. HOWEVER WEATHER SPOTTERS ARE
ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS.
SGX WATCHES/WARNINGS/ADVISORIES
CA...NONE.
PZ...NONE.
UPDATE...APR
PUBLIC...CO
AVIATION/MARINE...STEWEY
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page