058
FXUS66 KSGX 130434
AFDSGX
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN DIEGO CA
834 PM PST MON JAN 12 2026
SYNOPSIS
GUSTY SANTA ANA WINDS WILL BECOME MORE LOCALIZED IN THE PASSES
AND COASTAL SLOPS AS THE WEEK WEARS ON. TEMPERATURES WILL
CONTINUE TO WARM INTO WEDNESDAY. HIGH TEMPERATURES OF 5 TO 15
DEGREES ABOVE AVERAGE ARE EXPECTED FROM WEDNESDAY INTO THIS
WEEKEND WITH CONTINUED DRY AND MOSTLY SUNNY WEATHER.
DISCUSSION...FOR EXTREME SOUTHWESTERN CALIFORNIA INCLUDING ORANGE
SAN DIEGO...WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO
COUNTIES...
THIS EVENING...SFC PRESSURE GRADIENTS REMAIN STRONGLY OFFSHORE
WITH -12.0 MB SAN-TPH AND -4.9 MB SAN-DAG. IN THE LAST HOUR, THE
WINDY LOCATIONS HAVE REPORTED NORTHEAST TO EAST WINDS GUSTING
45-60 MPH.
FROM PREVIOUS DISCUSSION...
WINDS WILL WEAKEN A LITTLE THIS EVENING THEN STRENGTHEN AGAIN
SLIGHTLY BY TUESDAY MORNING, THOUGH NOT AS STRONG AS TODAY AND
MORE LOCALIZED TO THE WIND-PRONE AREAS AS THE PRESSURE GRADIENT
BEGINS TO RELAX. THE OFFSHORE WIND PATTERN WILL STICK AROUND MUCH
OF THIS WEEK AS HIGH PRESSURE REMAINS LOCKED IN ACROSS THE WEST
COAST. THIS WILL CONTINUE TO BRING DRY CONDITIONS AND GUSTY WINDS
TO THE COASTAL SLOPES OF THE MOUNTAINS INTO SOME WESTERN VALLEYS
EACH DAY. WINDS WILL GENERALLY BE 35-50 MPH IN THE WINDY SPOTS,
CLOSER TO 25-35 MPH ELSEWHERE.
HIGH PRESSURE OVER CALIFORNIA WILL CONTINUE TO AMPLIFY FOR
TUESDAY INTO WEDNESDAY AND 850MB TEMPERATURES WILL APPROACH 15C.
NEAR AVERAGE TEMPERATURES ACROSS THE MOUNTAINS AND DESERTS WILL
BEGIN TO RISE ABOVE AVERAGE BY WEDNESDAY. NBM CHANCES FOR REACHING
80 DEGREES RISE DRAMATICALLY BY THIS DAY, WITH CHANCES NEAR
70-90% FOR MANY AREAS OF THE INLAND EMPIRE, COACHELLA VALLEY, AND
INLAND SAN DIEGO CO VALLEYS (CLOSER TO 30-50% ACROSS INLAND ORANGE
COUNTY AND THE ANZA BORREGO DESERT). THE AREA OF HIGH PRESSURE
WILL NOT MOVE VERY MUCH THROUGH THE REST OF THE WEEK, LEADING TO
MINOR DAY-TO-DAY CHANGES IN TEMPERATURES. HIGHS IN THE 70S/80S
WILL CONTINUE FOR AREAS WEST OF THE MOUNTAINS AND LOWER DESERTS.
BEACH DAYS WILL BE GLORIOUS WITH HIGHS IN THE LOW TO MID 70S.
EARLY MORNING LOW TEMPERATURES WILL ALSO NOT BE AS CHILLY BY THE
MIDDLE AND THE END OF THIS WEEK AS WELL.
HIGH PRESSURE WILL WEAKEN SOME BY THE WEEKEND, WHICH WILL HELP
EASE OFFSHORE WINDS ACROSS THE MOUNTAINS AND FOOTHILLS EVEN
FURTHER. THIS MAY AID IN A SLIGHT COOL DOWN IN TEMPERATURES BUT
CONFIDENCE ON THIS OCCURRING REMAINS LOW. MODELS BEGIN TO HINT AT
A POSSIBLE TURN TO ONSHORE FLOW BY EARLY NEXT WEEK AS WELL, WHICH
COULD NUDGE OUR TEMPERATURES CLOSER TO AVERAGE WITH WEAKER WINDS.
AVIATION
130330Z...MOSTLY CLEAR SKIES AND VFR CONDITIONS THROUGH TUESDAY
EVENING. EAST TO NORTHEAST WINDS 20-30 KTS ON THE COASTAL
SLOPES/FOOTHILLS. ISOLATED GUSTS TO 40 KTS IN WIND-PRONE PASSES AND
ALONG COASTAL SLOPES IN SAN DIEGO COUNTY. LOCAL GUSTS 15-25 KTS INTO
THE VALLEYS. PERIODS OF LLWS WITH MOD UP/DOWNDRAFTS IN LEE OF
MOUNTAINS (INCLUDING KSNA).
MARINE
NO HAZARDOUS MARINE CONDITIONS ARE EXPECTED THROUGH SATURDAY.
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...APR/PG
AVIATION/MARINE...KW
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