354
FXUS66 KSGX 152224
AFDSGX
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN DIEGO CA
224 PM PST SAT FEB 15 2025
SYNOPSIS
DRY WEATHER IS EXPECTED THROUGH NEXT WEEK. WEAK OFFSHORE FLOW
WILL OCCUR BELOW MOUNTAINS PASSES AND COASTAL FOOTHILLS THIS
MORNING THROUGH SUNDAY MORNING FOR WARMER WEATHER. A BRIEF
COOLING IS EXPECTED EARLY NEXT WEEK WITH INCREASED ONSHORE FLOW,
THEN MINOR WARMING AND ANOTHER ROUND OF WEAK OFFSHORE FLOW FOR
THE MIDDLE TO LATTER PART OF NEXT WEEK.
DISCUSSION...FOR EXTREME SOUTHWESTERN CALIFORNIA INCLUDING ORANGE
SAN DIEGO...WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO
COUNTIES...
TONIGHT THROUGH TOMORROW NIGHT...
CURRENTLY, HIGH PRESSURE CONDITIONS DOMINATE THE REGION AS A RIDGE
CONTINUES TO BUILD BACK IN, WITH MOSTLY CLEAR SKIES, DESPITE A
FEW PASSING HIGH CLOUDS. BY LATER ON THIS EVENING, THERE WILL BE
AN INCREASE OF LOW CLOUDS ALONG THE COASTAL AREAS BY LATER THIS
EVENING, AND SOME OF THESE CLOUDS WILL EXTEND INTO THE INLAND
VALLEYS.
WITH HIGHER PRESSURE CONTINUING TO BUILD IN, DAYTIME TEMPERATURES
WILL BE WARMER TOMORROW ON SUNDAY. THE INCREASED SUBSIDENCE OVER
THE REGION WILL ALSO ALLOW FOR THE BASES OF THE MARINE LAYER WILL
LOWER AND THERE COULD BE SOME PATCHY AREAS OF FOG ALONG THE EXTREME
COASTAL AREAS TOMORROW NIGHT, AS WELL AS OUT OVER THE INNER WATERS.
THERE WILL BE A COOLING TREND BEGINNING EARLY IN THE WEEK, WITH AN
INCREASE IN ONSHORE FLOW. DUE TO THIS, THE CHANCE OF PATCHY FOG WILL
ALSO INCREASE, ESPECIALLY WITHIN SOME OF THE INLAND VALLEYS, ON
MONDAY NIGHT THROUGH TUESDAY MORNING.
THROUGH NEXT WEEKEND...
PASSING MAJOR SHORTWAVE TROUGHS LOOK TO REMAIN FAR ENOUGH TO THE
NORTH THAT THERE WILL BE VERY LITTLE IMPACT TO THE REGION, OTHER
THAN SOME DAYS OF INCREASED WINDS AND THICKENING OF THE MARINE LAYER
WITH POSSIBLE AREAS OF DRIZZLE BY LATER IN THE WEEK. OTHERWISE, HIGH
PRESSURE WILL REMAIN IN CONTROL WITH TRANQUIL WEATHER EXPECTED
THROUGH NEXT WEEKEND.
AVIATION
152130Z...HIGH CLOUDS AT/ABOVE 20,000 FT MSL WILL MOVE IN FROM THE
NORTHWEST TODAY AND SUNDAY. OTHERWISE, MOSTLY CLEAR SKIES AND VFR
CONDITIONS PREVAIL THROUGH SUNDAY EVENING.
MARINE
NO HAZARDOUS MARINE CONDITIONS ARE ANTICIPATED THROUGH THURSDAY.
SKYWARN
SKYWARN ACTIVATION IS NOT REQUESTED. HOWEVER WEATHER SPOTTERS ARE
ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS.
SGX WATCHES/WARNINGS/ADVISORIES
CA...HIGH SURF ADVISORY UNTIL 4 AM PST SUNDAY FOR SAN DIEGO COUNTY
COASTAL AREAS.
PZ...NONE.
PUBLIC...STEWEY
AVIATION/MARINE...CSP
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