692
FXUS66 KSGX 150502
AFDSGX
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN DIEGO CA
1002 PM PDT THU MAY 14 2026
SYNOPSIS
BRIEF WARMING TREND EXPECTED THROUGH FRIDAY, WITH COOLER CONDITIONS
OVER THE WEEKEND, AND ADDITIONAL WARMING NEXT WEEK. GUSTY
WESTERLY WINDS OVER THE MOUNTAINS AND INTO THE DESERTS THIS
WEEKEND. NIGHT AND MORNING LOW CLOUDS AND FOG WILL BE PRESENT EACH
DAY THROUGH THE FORECAST PERIOD ALONG THE COAST AND INTO PORTIONS
OF THE VALLEYS AT TIMES.
DISCUSSION...FOR EXTREME SOUTHWESTERN CALIFORNIA INCLUDING ORANGE
SAN DIEGO...WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO
COUNTIES...
BRIEF WARMING TREND FOR INLAND LOCATIONS TODAY AND FRIDAY. HIGH
RESOLUTION GUIDANCE IS INDICATING A COASTAL EDDY WILL BE PRESENT
FRIDAY THROUGH SUNDAY WHICH SHOULD PUSH MARINE LAYER LOW CLOUDS
INTO THE COASTAL BASIN EACH NIGHT MORNING THIS WEEKEND. THE EDDY
MAY ALSO PREVENT LOW CLOUDS FROM COMPLETELY CLEARING THE COAST OR
PUSH CLEARING TO LATER IN THE AFTERNOON. PATCHY DRIZZLE MAY
DEVELOP, MOST LIKELY ON SATURDAY AS A TROUGH OF LOW PRESSURE
PASSES TO OUR NORTH.
AS THE AFOREMENTIONED TROUGH DIGS SOUTH INTO THE PACIFIC
NORTHWEST AND GREAT BASIN, WINDS WILL INCREASE OVER THE MOUNTAINS
AND DESERTS. GUSTY WINDS WILL DEVELOP LATE SATURDAY MORNING AND
CONTINUE INTO SUNDAY, WEAKENING BY LATE SUNDAY NIGHT. WINDS WILL
BE STRONGEST ON THE EAST FACING MOUNTAIN SLOPES, THROUGH PASSES,
AND INTO THE DESERTS. PEAK GUSTS WILL BE MOSTLY 40-60 MPH, WITH
LOCAL GUSTS TO 65 MPH POSSIBLE IN WIND PRONE LOCATIONS.
ADDITIONALLY TEMPERATURES WILL FALL A FEW DEGREES, BECOMING
SLIGHTLY BELOW NORMAL FOR MOST LOCATIONS.
TEMPERATURES ARE EXPECTED TO WARM FOR EARLY TO MID-NEXT WEEK. MOST
ENSEMBLE CLUSTERS INDICATE A RIDGE OF HIGH PRESSURE IN THE VICINITY
OF THE US WEST COAST BY MONDAY WITH VARIATIONS IN PLACEMENT. A MORE
EASTERLY POSITION (PUTTING THE RIDGE OVER CALIFORNIA) WOULD LEAD TO
A WARMER SOLUTION WITH A MORE WESTERLY POSITION (KEEPING THE RIDGE
OVER THE EASTERN PACIFIC) WOULD KEEP TEMPERATURES MORE MODERATE.
AVIATION
150600Z...COAST/VALLEYS...LOW CLOUDS BASED AROUND 1800-2000FT MSL
HAVE FILLED WELL INLAND ACROSS SAN DIEGO COUNTY, AND WILL CONTINUE
TO SPREAD NORTHWARD INTO ORANGE COUNTY AND THE INLAND EMPIRE THROUGH
09-12Z. 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.
SIMILAR REDEVELOPMENT OF LOW CLOUDS FILLING BACK IN AND PUSHING
ASHORE AFTER 00Z SATURDAY, LIKELY WITH SIMILAR BASES TO TONIGHT.
MOUNTAINS/DESERTS...ELEVATED WESTERLY WIND GUSTS 25-40 KT CONTINUING
THROUGH THE DESERTS, BUT WILL GRADUALLY WANE THROUGH 09-12Z.
MOD UP/DOWNDRAFTS AND LOCAL LLWS IN LEE OF MOUNTAINS UNTIL THEN.
SIMILAR STRENGTH WINDS EXPECTED TO PICK BACK UP AGAIN AFTER 22Z
FRIDAY. 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 OVER 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 SUNDAY
MORNING.
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...CO
AVIATION/MARINE...MUNYAN
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