565
FXUS66 KSGX 182131
AFDSGX
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN DIEGO CA
131 PM PST TUE FEB 18 2025
SYNOPSIS
A FEW DEGREES OF COOLING FOR INLAND AREAS TODAY WITH WIDESPREAD
WARMING WEDNESDAY. FOR 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...
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
182100Z...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 COVERAGE THAN THIS MORNING. LOCALIZED VIS
REDUCTIONS POSSIBLE WHERE TERRAIN INTERSECTS CLOUDS DOWN TO 3-6SM.
SCATTER OUT TO THE COAST 17-18Z WEDNESDAY.
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.
PUBLIC...CO
AVIATION/MARINE/BEACHES...WESTERINK
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