836
FXUS66 KSGX 261643
AFDSGX
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN DIEGO CA
843 AM PST WED NOV 26 2025
SYNOPSIS
HIGH PRESSURE ALOFT AND OFFSHORE FLOW WILL BRING ADDITIONAL
WARMING OF A FEW TO AROUND 5 DEGREES TODAY. NORTHEAST TO EAST
WINDS ALONG AND BELOW THE COASTAL SLOPES OF THE MOUNTAINS WILL
GUST TO 30 TO 40 MPH TODAY. THANKSGIVING WILL HAVE MID AND HIGH
CLOUDS, WEAKER WINDS, WITH HIGH TEMPERATURES FOR THE COAST AND
VALLEYS A FEW TO AROUND 5 DEGREES COOLER. COOLING WILL SPREAD
INLAND ON FRIDAY AND SATURDAY. A LOW PRESSURE SYSTEM FROM THE
NORTH WILL BRING ADDITIONAL COOLING ON SUNDAY AND SUNDAY NIGHT
ALONG WITH A CHANCE OF SHOWERS. THEN DRIER AND A LITTLE WARMER
FOR MONDAY AND TUESDAY.
DISCUSSION...FOR EXTREME SOUTHWESTERN CALIFORNIA INCLUDING ORANGE
SAN DIEGO...WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO
COUNTIES...
MORNING UPDATE
CLEAR SKIES WILL CONTINUE AS NORTH AND EAST WINDS GUST NEAR 30-40+
MPH ACROSS THE MOUNTAINS AND PASSES OF THE COASTAL FACING SLOPES.
WEAKER OFFSHORE FLOW WILL PREVAIL LATER TODAY INTO THURSDAY
MORNING. THE WEATHER CONTINUES TO LOOK QUIET FOR MUCH OF THE
THANKSGIVING HOLIDAY WEEKEND. WILL CONTINUE TO KEEP AN EYE ON THE
FORECAST FOR THE LOW CHANCE OF LIGHT SHOWERS OVER THE REGION BY
THIS COMING SUNDAY.
PREVIOUS DISCUSSION (300 AM WEDNESDAY)
SHORT TERM (TODAY THROUGH FRIDAY)
HIGH PRESSURE ALOFT AND OFFSHORE FLOW WILL BRING ADDITIONAL
WARMING OF A FEW TO AROUND 5 DEGREES TODAY WITH HIGH TEMPERATURES
FOR THE VALLEYS AND INLAND COASTAL AREAS AS MUCH AS 10 TO 15
DEGREES ABOVE AVERAGE. HIGH TEMPERATURES FOR TODAY WILL RANGE FROM
THE LOWER TO MID 70S NEAR THE COAST TO THE LOWER TO MID 80S FOR
THE VALLEYS AND INLAND ORANGE COUNTY WITH THE LOWER DESERTS AROUND
80. EARLY THIS MORNING, EAST TO NORTHEAST WINDS ALONG AND BELOW
THE COASTAL SLOPES OF THE MOUNTAINS ARE GUSTING TO 35 TO 45 MPH
AROUND THE CAJON PASS AND 25 TO 35 MPH ELSEWHERE.
A WEAKENING LOW PRESSURE SYSTEM FROM THE WEST WILL BRING MID AND
HIGH CLOUDS FOR LATE TONIGHT INTO THURSDAY EVENING. THE HUMIDITY
WILL STILL BE LOWER INLAND ON THANKSGIVING WITH COOLING FOR THE
COAST AND VALLEYS OF A FEW TO AROUND 5 DEGREES. THE COOLING WILL
CONTINUE TO SPREAD INLAND ON FRIDAY, BUT WITH FEWER HIGH CLOUDS.
HIGH TEMPERATURES ON FRIDAY WILL RANGE FROM THE MID TO UPPER 60S
NEAR THE COAST TO THE LOWER TO MID 70S FOR THE VALLEYS AND INLAND
ORANGE COUNTY WITH THE LOWER DESERTS IN THE UPPER 70S TO AROUND
80.
LONG TERM (SATURDAY THROUGH TUESDAY)
A LOW PRESSURE SYSTEM MOVING ACROSS THE PACIFIC TOWARD THE WEST
COAST ON FRIDAY WILL THEN MOVE TOWARD THE SOUTH DURING THE
WEEKEND, REMAINING WELL TO THE WEST OF BAJA ON SUNDAY, CENTERED
ALONG 130 WEST LONGITUDE. A SECOND LOW PRESSURE SYSTEM WILL MOVE
SOUTHWARD DURING THE WEEKEND THROUGH THE WESTERN STATES ON A MORE
INLAND TRACK.
HOWEVER, IT MAY TRACK JUST FAR ENOUGH TO THE WEST TO ENTRAIN SOME
PACIFIC MOISTURE, BRINGING A CHANCE OF SHOWERS TO SOUTHWESTERN
CALIFORNIA AROUND SUNDAY AFTERNOON AND NIGHT WITH THE CHANCE OF
MEASURABLE PRECIPITATION 25 TO 35 PERCENT. THE CHANCE FOR ONE-HALF
INCH OR MORE OF RAINFALL OR LIQUID-EQUIVALENT IN THE MOUNTAINS IS
AROUND 10 PERCENT. THE SNOW LEVEL WILL FALL FROM AROUND 6500 TO
7000 FEET ON SUNDAY TO 6000 FEET ON SUNDAY NIGHT.
SATURDAY AND SUNDAY WILL BE COOLER WITH SUNDAY HIGH TEMPERATURES
MOSTLY IN THE 60S FOR THE COAST AND VALLEYS WITH THE LOWER DESERTS
IN THE LOWER 70S. THEN DRIER AND A LITTLE WARMER FOR MONDAY AND
TUESDAY.
AVIATION
261630Z...COASTS...VFR CONDITIONS AND MOSTLY CLEAR SKIES CONTINUE
THROUGH THE PERIOD.
VALLEYS/MOUNTAINS/DESERTS...VFR CONDITIONS AND CLEAR SKIES CONTINUE
THROUGH THE PERIOD. E TO NE WINDS LOCALLY GUSTING 25-40 KT ALONG
COASTAL SLOPES OF THE MOUNTAINS WILL EXPAND TO INCLUDE ADJACENT
FOOTHILLS AND PORTIONS OF THE INLAND EMPIRE BY 18Z. ELEVATED
OFFSHORE WIND GUSTS BECOME MORE CONFINED TO MOUNTAIN PASSES BY 06Z
THURSDAY. AREAS OF LLWS/LOW-LEVEL TURBULENCE ALONG FOOTHILLS/WEST
MOUNTAIN SLOPES.
MARINE
NO HAZARDOUS MARINE CONDITIONS ARE EXPECTED THROUGH MOST OF
SATURDAY. POTENTIAL FOR ELEVATED WINDS AND SEAS LATE SATURDAY INTO
EARLY NEXT WEEK DUE TO AN APPROACHING STORM SYSTEM, BUT THE FORECAST
REMAINS UNCERTAIN; CONTINUE TO CHECK IN FOR UPDATES.
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...17
AVIATION/MARINE...MUNYAN
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