892
FXUS66 KSGX 022131
AFDSGX
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN DIEGO CA
131 PM PST SUN NOV 2 2025
SYNOPSIS
A TROUGH OF LOW PRESSURE WILL DEEPEN OFFSHORE THROUGH THE MIDDLE
OF THE WEEK, BRINGING COOLER WEATHER, BREEZIER CONDITIONS, AND
GREATER COVERAGE OF LOW CLOUDS WEST OF THE MOUNTAINS. HIGH
PRESSURE WILL REEMERGE AT THE END OF THE WEEK, BRINGING IN WARMER
CONDITIONS AND CLOUD COVERAGE CLOSER TO THE COAST.
DISCUSSION...FOR EXTREME SOUTHWESTERN CALIFORNIA INCLUDING ORANGE
SAN DIEGO...WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO
COUNTIES...
HIGH CLOUDS FROM THE SOUTH INTERSECT LOW CLOUDS ALONG THE COAST
THIS AFTERNOON AS A WEAK AREA OF LOW PRESSURE MOVES OVER THE
REGION. PATCHY LOW CLOUDS WILL BE FOUND AT THE COAST BEFORE
GREATER CLOUD COVERAGE MOVES INTO THE VALLEYS THIS EVENING, WHERE
THERE IS LOW TO MODERATE CONFIDENCE IN CLOUDS MOVING INTO THE
INLAND EMPIRE. FOGGY CONDITIONS ARE STILL EXPECTED OVERNIGHT INTO
MONDAY MORNING FOR VALLEY AREAS. A PACIFIC STORM OVER THE ALEUTIAN
ISLAND CHAIN OF ALASKA WILL MOVE CLOSER TO THE WEST COAST OVER
THE NEXT COUPLE DAYS. THIS WILL LEAD TO PRESSURE HEIGHT FALLS,
AIDING IN MINOR COOLING AND GREATER ONSHORE FLOW ACROSS SOUTHERN
CALIFORNIA IN THE COMING DAYS. HIGH TEMPERATURES WILL BE SIMILAR
MOST PLACES BY MONDAY AND TUESDAY, WITH THE INLAND VALLEYS SEEING
THE GREATEST COOLING AROUND 5 DEGREES WITH WIDESPREAD HIGHS IN THE
LOWER 80S. THE MARINE LAYER WILL SLOWLY DEEPEN OVER THE NEXT
COUPLE OF DAYS AS WELL, WITH A GREATER CHANCE OF FOG FOR AREAS OF
THE INLAND EMPIRE.
THE PACIFIC STORM AND ASSOCIATED AREA OF LOW PRESSURE WILL MOVE
INTO NORTHERN CALIFORNIA AND OREGON BY WEDNESDAY AND THURSDAY.
THIS WILL BRING THE GREATEST COOLING AND WEST WINDS OVER THE
REGION. HIGHS IN THE 60S/70S WILL BE COMMON FOR MOST AREAS WITH
THE COACHELLA VALLEY IN THE 80S. WE STILL CONTINUE TO MONITOR
WINDS DURING THIS TIME, BUT CONFIDENCE IS INCREASING ON WIND
SPEEDS BECOMING ELEVATED ACROSS THE MOUNTAINS AND DESERTS WITH
GUSTS 20-40 MPH OUT OF THE WEST. MODEL AGREEMENT IS FAIRLY UNIFORM
IN BRINGING IN AN EXPANDING AREA OF HIGH PRESSURE BY FRIDAY INTO
NEXT WEEKEND ACROSS THE REGION, WHICH WILL CONTRIBUTE TO WARMER
WEATHER AND WEAKER WINDS WITH OFFSHORE FLOW.
AVIATION
022100Z...COASTS/VALLEYS...SCT-BKN LOW CLOUDS BASED AROUND 900FT MSL
HANGING RIGHT ALONG THE COAST, INTERMITTENTLY IMPACTING SOME COASTAL
SITES, CONTINUING THROUGH 00Z MON. MORE UNIFORM LOW CLOUDS BEGIN TO
MOVE INLAND AFTER 00Z WITH BASES RANGING 700-1100FT MSL. MOST
COASTAL SITES WILL BE HIGH-END IFR FOR THE FIRST FEW HOURS, WITH VIS
RANGING FROM 4-6SM. VIS WILL GRADUALLY FALL A BIT OVERNIGHT AS WILL
BASES, CLOSER TO 500-900FT MSL. VIS FOR COASTAL TERRAIN AND VALLEYS
WILL FALL TO 1/2SM OR LESS AT TIMES, GENERALLY AFTER 07Z. 30-40%
CHANCE OF A CIG AT KONT, GENERALLY AFTER 08Z. CLOUDS SHOULD CLEAR
BACK TOWARDS THE COAST AT A SIMILAR TIME AS TODAY, AROUND 17Z MON,
AND LINGER AT THE COAST/BEACHES THROUGH MUCH OF THE DAY.
MOUNTAINS/DESERTS...VFR CONDITIONS PREVAIL THROUGH THE PERIOD. FEW-
SCT HIGH CLOUDS AOA 20,000FT MSL THROUGH MONDAY.
MARINE
NO HAZARDOUS MARINE CONCERNS THROUGH THURSDAY.
BEACHES
LONG PERIOD (19-21 SEC) SWELL FROM THE SOUTHWEST (200 DEGREES)
PREVAILING THROUGH TODAY, BRINGING ELEVATED SURF OF 3 TO 5
FEET WITH LOCALLY HIGHER SETS ON SOUTHWEST FACING BEACHES. SURF WILL
GRADUALLY FALL TONIGHT INTO MONDAY. SURF BECOMES ELEVATED AGAIN LATE
WEEK.
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
AVIATION/MARINE...ZUBER
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