560
FXUS66 KSGX 252025
AFDSGX
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN DIEGO CA
125 PM PDT WED MAR 25 2026
SYNOPSIS
HIGH TEMPERATURES FOR INLAND AREAS WILL REMAIN AROUND 15 TO 20
DEGREES ABOVE AVERAGE INTO THE WEEKEND, WITH SOME RECORD DAILY
HIGH TEMPERATURES CONTINUING TO BE TIED OR BROKEN, MAINLY FOR THE
MOUNTAINS AND DESERTS BUT OCCASIONALLY FOR THE INLAND VALLEYS AS
WELL. THE MARINE LAYER PRESENCE WILL CONTINUE, WITH SOME SMALL
DAY-TO-DAY VARIATIONS. COASTAL LOW CLOUDS NOT LIKELY TO SPREAD AS
FAR INLAND ON FRIDAY AND SATURDAY. MID AND HIGH CLOUDS WILL
SPREAD ACROSS THE AREA FOR THIS WEEKEND INTO EARLY NEXT WEEK. HIGH
TEMPERATURES WILL LOWER ONLY SLIGHTLY DURING THE WEEKEND, WITH
GREATER COOLING SPREADING INLAND EARLY NEXT WEEK AS A LOW PRESSURE
SYSTEM MOVES TOWARD THE CALIFORNIA COAST.
DISCUSSION...FOR EXTREME SOUTHWESTERN CALIFORNIA INCLUDING ORANGE
SAN DIEGO...WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO
COUNTIES...
MOSTLY CLEAR THIS AFTERNOON EXCEPT FOR SOME LOW CLOUDS OVER THE
COASTAL WATERS. TEMPERATURES ARE WITHIN A FEW DEGREES OF WHERE
THEY WERE AT THIS TIME YESTERDAY. THE MARINE LAYER INFLUENCE WILL
PERSIST THROUGH THE WEEKEND, WITH DAY-TO-DAY VARIATIONS ON THE
DEPTH AND THE INLAND EXTENT OF THE LOW CLOUDS AND FOG DURING THE
NIGHTS AND MORNINGS.
DAYTIME HIGH TEMPERATURES WILL GRADUALLY TREND HIGHER THROUGH SATURDAY
AS THE HIGH PRESSURE RIDGE PERSISTS OVER THE SOUTHWEST. HIGH
TEMPERATURES TODAY WILL RANGE FROM AROUND 5 DEGREES ABOVE AVERAGE
NEAR THE COAST TO AROUND 20 DEGREES ABOVE AVERAGE IN THE
MOUNTAINS AND HIGH DESERT. IT LOOKS LIKE SATURDAY WILL BE THE
WARMEST DAY WITH HIGH TEMPERATURES RANGING FROM AROUND 10-12 DEGREES
ABOVE AVERAGE NEAR THE COAST TO 20-25 DEGREES ABOVE AVERAGE IN THE
SAN DIEGO COUNTY MOUNTAINS. SATURDAY HIGH TEMPERATURES WILL RANGE
FROM THE 70S TO LOW 80S NEAR THE COAST TO THE UPPER 80S TO MID
90S FOR THE INLAND EMPIRE, WITH THE UPPER 90S TO 103 FOR THE
LOWER DESERTS.
ONSHORE FLOW TODAY WILL BE STRONG ENOUGH TO PRODUCE SOUTHWEST
WINDS GUSTING 30-40 MPH IN THE FAVORED AREAS OF THE DESERTS AND
DESERT MTN SLOPES THIS AFTERNOON AND EVENING. ONSHORE FLOW WILL BE
NOTICEABLY WEAKER FOR THURSDAY THEN STRENGTHEN SOMEWHAT AGAIN ON
FRIDAY.
FOR SUNDAY THROUGH NEXT WEDNESDAY...TEMPERATURES WILL TREND LOWER
AND CLOUDS WILL GENERALLY INCREASE AS A LOW PRESSURE SYSTEM
APPROACHES THE CA COAST FROM THE WEST, DISPLACING THE HIGH
PRESSURE RIDGE TO THE SOUTHEAST INTO TX. NEXT WEDNESDAY WILL
LIKELY BE THE COOLEST DAY, WITH DAYTIME HIGH TEMPS IN THE 60S-70S
WEST OF THE MTNS AND IN THE 80S IN THE LOW DESERTS.
A SIGNIFICANT PERCENTAGE OF ENSEMBLE MEMBERS (MOST FROM THE
EUROPEAN MODEL) INDICATE THE POTENTIAL FOR PRECIP NEXT TUE/WED AS
THE LOW PRESSURE SYSTEM MOVES INLAND. AT THIS TIME, THE NATIONAL
BLEND OF MODELS INDICATE UP TO A 35 PERCENT CHANCE (MAINLY IN THE
MTNS) FOR AT LEAST 0.01 INCH. ANY RAINFALL WILL LIKELY BE CONFINED
TO AREAS FROM THE MTNS WESTWARD. UNCERTAINTY IS STILL HIGH DUE TO
THE SPREAD AMONG THE MODEL SOLUTIONS.
AVIATION
251830Z...LOW CLOUDS BASED 800-1300 WILL INCREASE AND SPREAD INLAND
UP TO 25 MILES OR SO AFTER THU 02Z. VIS REDUCED 3-5 SM MAINLY OVER
HIGHER COASTAL TERRAIN AND VALLEYS. THERE IS A 30% CHANCE FOR CIGS
TO SPREAD INTO THE NORTHWEST IE VCNTY KONT AFTER 10Z, BUT HIGHER
CONFIDENCE IN MISTY CONDITIONS WITH MVFR VIS BUT NO CIGS. CLOUDS
SCATTER OUT THU 15-17Z.
OTHERWISE, MOSTLY CLEAR AND VFR CONDITIONS WILL PREVAIL TODAY AND
TONIGHT.
MARINE
NO HAZARDOUS MARINE CONDITIONS EXPECTED THROUGH SUNDAY.
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...PG
AVIATION/MARINE...CSP
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