414
FXUS66 KSGX 150926
AFDSGX
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN DIEGO CA
226 AM PDT FRI MAY 15 2026
SYNOPSIS
SLIGHT INLAND WARMING FOR TODAY, THEN COOLER FOR THE WEEKEND FOR
INLAND AREAS WITH STRONGER ONSHORE FLOW. THE MARINE LAYER WILL
DEEPEN DURING THE WEEKEND WITH NIGHT AND MORNING COASTAL LOW
CLOUDS EXTENDING WELL INLAND AND ONTO THE COASTAL SLOPES OF THE
MOUNTAINS. FOR SATURDAY AFTERNOON INTO SUNDAY EVENING, SOUTHWEST
TO WEST WINDS FOR THE MOUNTAINS AND DESERTS WILL GUST TO 40 TO 50
MPH WITH ISOLATED GUSTS TO 65 MPH. THE COAST AND VALLEYS WILL
WARM ON MONDAY WITH THE GREATER WARMING FOR INLAND AREAS FOR
TUESDAY THROUGH THURSDAY.
DISCUSSION...FOR EXTREME SOUTHWESTERN CALIFORNIA INCLUDING ORANGE
SAN DIEGO...WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO
COUNTIES...
SHORT TERM (TODAY THROUGH SUNDAY)
HIGH TEMPERATURES FOR THE DESERTS WILL WARM A FEW DEGREES TODAY
WITH NOT MUCH CHANGE ELSEWHERE. THE MARINE LAYER WILL CONTINUE TO
DEEPEN EARLY THIS MORNING WITH COASTAL LOW CLOUDS EXTENDING ONTO
THE LOWER COASTAL SLOPES OF THE MOUNTAINS THIS MORNING.
FOR THE WEEKEND, ONSHORE FLOW WILL STRENGTHEN ACROSS SOUTHERN
CALIFORNIA. THE MARINE LAYER WILL CONTINUE TO DEEPEN THROUGH THE
WEEKEND WITH NIGHT AND MORNING COASTAL LOW CLOUDS EXTENDING WELL
INLAND AND ONTO THE COASTAL SLOPES OF THE MOUNTAINS. THERE WILL
BE PERIODS OF GUSTY SOUTHWEST TO WEST WINDS FOR THE MOUNTAINS AND
DESERTS FOR SATURDAY AFTERNOON INTO SUNDAY EVENING WITH GUSTS TO
40 TO 50 MPH AND WITH ISOLATED GUSTS TO 65 MPH.
WITH THE COOLING, HIGH TEMPERATURES FOR SUNDAY WILL BE AS MUCH AS
4 TO 8 DEGREES BELOW AVERAGE FOR THE MOUNTAINS AND INLAND VALLEYS.
FOR SUNDAY, HIGH TEMPERATURES WILL RANGE FROM THE MID TO UPPER 60S
NEAR THE COAST TO THE 70S FOR THE INLAND EMPIRE WITH THE UPPER 80S
TO MID 90S FOR THE LOWER DESERTS.
LONG TERM (MONDAY THROUGH THURSDAY)
THE COAST AND VALLEYS WILL WARM ON MONDAY WITH WINDS FOR THE
DESERTS BECOMING NORTHWESTERLY. FOR TUESDAY THROUGH THURSDAY, HIGH
TEMPERATURES FOR INLAND AREAS WILL WARM. HIGH TEMPERATURES ON
THURSDAY WILL BE WITHIN A FEW DEGREES OF AVERAGE FOR THE COAST AND
VALLEYS AND AROUND 4 TO 8 DEGREES ABOVE AVERAGE FOR THE DESERTS
AND LOWER ELEVATIONS OF THE MOUNTAINS. HIGH TEMPERATURES FOR
THURSDAY OF NEXT WEEK WILL RANGE FROM AROUND 70 NEAR THE COAST TO
THE UPPER 70S TO MID 80S FOR THE INLAND EMPIRE WITH THE UPPER 90S
TO 102 FOR THE LOWER DESERTS.
AVIATION
151000Z...COAST/VALLEYS...LOW CLOUDS BASED AROUND 1800-2000FT MSL
HAVE FILLED INLAND AROUND 20 MILES AND WILL CONTINUE TO PUSH INTO
THE INLAND EMPIRE THROUGH 12Z. VIS RESTRICTIONS LIMITED LOCALLY TO
INLAND VALLEYS, AND WHERE CLOUDS INTERSECT TERRAIN. CLOUDS SCATTER
BACK TO THE COASTS BY 17-18Z FOR SAN DIEGO COUNTY, CLOSER TO 19Z FOR
ORANGE COUNTY. LOW CLOUDS MAY HANG ALONG THE BEACHES THROUGH THE
AFTERNOON. SIMILAR INLAND PUSH OF LOW CLOUDS AFTER 00Z SATURDAY,
LIKELY WITH SIMILAR BASES TO THIS MORNING.
MOUNTAINS/DESERTS...ELEVATED WESTERLY WIND GUSTS 25-40 KT AFTER 21Z
TODAY WITH MOD UP/DOWNDRAFTS AND LOCAL LLWS IN LEE OF MOUNTAINS.
LOCALIZED AREAS OF BLDU AND REDUCED VIS. WINDS WILL REMAIN GUSTY
TONIGHT AND THROUGH MUCH OF SATURDAY. OTHERWISE, SKC AND VFR
EXPECTED THROUGH THE PERIOD.
MARINE
NO HAZARDOUS MARINE CONDITIONS ARE EXPECTED THROUGH SATURDAY
MORNING. WINDS ARE EXPECTED TO REACH 20-30 KTS IN THE OUTER COASTAL
WATERS FROM LATE SATURDAY INTO EARLY SUNDAY. STRONGEST GUSTS NEAR
SAN CLEMENTE ISLAND. THIS WILL GENERATE HAZARDOUS CONDITIONS FOR
SMALL CRAFT WITH CHOPPY SEAS REACHING 8-11 FEET THROUGH MONDAY
MORNING.
BEACHES
AN INCREASING WESTERLY SWELL (290 DEGREES) WITH A 9 TO 10 SECOND
PERIOD WILL BRING ELEVATED SURF OF 4 TO 6 FEET FOR THE BEACHES AS
EARLY AS SATURDAY AFTERNOON AND PREVAIL THROUGH MONDAY AFTERNOON.
HIGHEST SURF AT WEST TO NORTHWEST FACING BEACHED. ADDITIONALLY, HIGH
TIDES OF 6.5 TO 7 FEET WILL COMBINE WITH THE ELEVATED SURF TO RESULT
IN MINOR TIDAL OVERFLOW, ESPECIALLY FOR BEACH PARKING LOTS AND
BOARDWALKS. SURF WILL FALL MONDAY NIGHT AND INTO TUESDAY.
SKYWARN
SKYWARN ACTIVATION IS NOT REQUESTED. HOWEVER WEATHER SPOTTERS ARE
ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS.
SGX WATCHES/WARNINGS/ADVISORIES
CA...WIND ADVISORY FROM 11 AM SATURDAY TO 11 PM PDT SUNDAY FOR APPLE
AND LUCERNE VALLEYS-SAN BERNARDINO COUNTY MOUNTAINS.
WIND ADVISORY FROM 2 PM SATURDAY TO 11 PM PDT SUNDAY FOR
RIVERSIDE COUNTY MOUNTAINS-SAN DIEGO COUNTY DESERTS-SAN
DIEGO COUNTY MOUNTAINS-SAN GORGONIO PASS NEAR BANNING.
PZ...NONE.
PUBLIC...17
AVIATION/MARINE/BEACHES...ZUBER
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