628
FXUS66 KSGX 061142
AFDSGX
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN DIEGO CA
342 AM PST THU NOV 6 2025
SYNOPSIS
HIGH PRESSURE TO THE SOUTHWEST WILL STRENGTHEN ACROSS SOUTHERN
CALIFORNIA THROUGH SUNDAY OR MONDAY, THEN BEGIN TO SLOWLY WEAKEN
EARLY NEXT WEEK AS LOW PRESSURE OVER THE EASTERN PACIFIC MOVES
SLOWLY TOWARD THE CALIFORNIA COAST. THE GREATEST WARMING FOR TODAY
AND FRIDAY WILL BE FOR THE COAST TO THE LOWER COASTAL SLOPES OF
THE MOUNTAINS. THERE WILL BE SLOWER WARMING FOR MOST AREAS FOR
EACH DAY FROM SATURDAY THROUGH MONDAY WITH MONDAY HIGH
TEMPERATURES 10 TO 15 DEGREES ABOVE AVERAGE FOR INLAND AREAS. SLOW
MOVING LOW PRESSURE OVER THE EASTERN PACIFIC WILL BRING
INCREASING CHANCES FOR WIDESPREAD PRECIPITATION FOR THE LATTER
HALF OF NEXT WEEK, BUT WITH LOW CONFIDENCE IN THE DETAILS.
DISCUSSION...FOR EXTREME SOUTHWESTERN CALIFORNIA INCLUDING ORANGE
SAN DIEGO...WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO
COUNTIES...
SHORT TERM (TODAY THROUGH SATURDAY)
HIGH PRESSURE TO THE SOUTHWEST WILL STRENGTHEN ACROSS SOUTHERN
CALIFORNIA INTO SUNDAY AND MONDAY. THE GREATEST WARMING FOR TODAY
AND FRIDAY WILL BE FROM THE COAST TO THE LOWER COASTAL MOUNTAIN
SLOPES AS THE MARINE LAYER BECOMES SHALLOWER AND ONSHORE FLOW
WEAKENS. SLOWER WARMING WILL CONTINUE FOR MOST AREAS FOR EACH DAY
FROM SATURDAY THROUGH MONDAY. WITH THE WARMING, HIGH TEMPERATURES
ON SATURDAY WILL BE 5 TO 10 DEGREES ABOVE AVERAGE FOR INLAND
AREAS WITH HIGH TEMPERATURES RANGING FROM THE LOWER 70S NEAR THE
COAST TO THE MID 80S TO AROUND 90 FOR THE INLAND EMPIRE WITH THE
LOWER 90S FOR THE LOWER DESERTS.
LONG TERM (SUNDAY THROUGH WEDNESDAY)
THE MODELS NOW SHOW HIGH PRESSURE ALOFT ACROSS SOUTHERN CALIFORNIA
CONTINUING TO SLOWLY STRENGTHEN INTO MONDAY. HIGH TEMPERATURES
WILL CONTINUE TO SLOWLY WARM FOR SUNDAY AND MONDAY WITH MONDAY
HIGH TEMPERATURES AS MUCH AS 10 TO 15 DEGREES ABOVE AVERAGE FOR
THE VALLEYS. HIGH TEMPERATURES ON MONDAY WILL RANGE FROM THE 70S
NEAR THE COAST TO THE MID 80S TO LOWER 90S FOR THE VALLEYS WITH
THE LOWER 90S FOR THE LOWER DESERTS.
A LARGE AREA OF LOW PRESSURE OVER THE EASTERN PACIFIC WILL MOVE
SLOWLY TOWARD THE WEST COAST NEXT WEEK WITH CONTINUING ENSEMBLE
DIFFERENCES IN THE SPEED OF EASTWARD MOVEMENT AS WELL AS THE
EVOLUTION OF THAT AREA OF LOW PRESSURE. CHANCES FOR WIDESPREAD
PRECIPITATION WILL INCREASE OVER SOUTHWESTERN CALIFORNIA DURING
THE LATTER HALF OF NEXT WEEK BUT WITH LOW CONFIDENCE IN THE
DETAILS. NBM DAILY CHANCES FOR MEASURABLE PRECIPITATION HAVE
INCREASED FOR EACH DAY FROM WEDNESDAY THROUGH SATURDAY WITH THE
GREATEST CHANCES STILL ON THURSDAY AND FRIDAY.
AVIATION
061030Z...COASTS/VALLEYS...MOSTLY CLEAR TODAY, BUT WITH PATCHY LOW
CLOUDS MOST LIKELY IN SOUTHWEST SAN DIEGO COUNTY. BASES WOULD BE
AROUND 2000 FEET MSL. ANY CIGS WILL CLEAR OUT BY 17Z. A MORE UNIFORM
MARINE LAYER IS EXPECTED TONIGHT, WITH CLOUDS TO PUSH ASHORE AFTER
01Z IN SAN DIEGO COUNTY AND AFTER 05Z IN ORANGE COUNTY, WITH A 40%
CHANCE OF CIGS IN THE INLAND EMPIRE. BASES INITIALLY NEAR 2000 FEET
MSL SHOULD LOWER TO AROUND 1500 FEET OVERNIGHT INTO FRIDAY MORNING.
MOUNTAINS/DESERTS...MOSTLY CLEAR AND VFR CONDITIONS TODAY AND
TONIGHT. WESTERLY WINDS 25-35 KTS THROUGH SAN GORGONIO PASS TODAY.
MARINE
NORTHWEST WIND GUSTS AROUND 20 KTS ARE EXPECTED AROUND SAN CLEMENTE
ISLAND THIS AFTERNOON AND EVENING. NO HAZARDOUS MARINE CONDITIONS
ARE EXPECTED THROUGH MONDAY.
BEACHES
WEST-NORTHWEST SWELL OF 4 TO 5 FEET WITH A PERIOD OF 14 TO 15
SECONDS WILL GENERATE SURF OF 4 TO 6 FEET WITH SETS TO 8 FEET.
HIGHEST SURF WILL BE SOUTH OF DEL MAR THIS EVENING THROUGH FRIDAY.
ELEVATED SURF COMBINED WITH HIGH TIDES COULD LEAD TO MINOR TIDAL
OVERFLOW. CHECK THE BEACH HAZARDS STATEMENT FOR MORE DETAILS.
SKYWARN
SKYWARN ACTIVATION IS NOT REQUESTED. HOWEVER WEATHER SPOTTERS ARE
ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS.
SGX WATCHES/WARNINGS/ADVISORIES
CA...BEACH HAZARDS STATEMENT FROM 7 AM PST THIS MORNING THROUGH LATE
FRIDAY NIGHT FOR SAN DIEGO COUNTY COASTAL AREAS.
BEACH HAZARDS STATEMENT FROM 7 AM PST THIS MORNING THROUGH
FRIDAY AFTERNOON FOR ORANGE COUNTY COASTAL AREAS.
PZ...NONE.
PUBLIC...17
AVIATION/MARINE/BEACHES...MM
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