619
FXUS66 KSGX 292036
AFDSGX
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN DIEGO CA
136 PM PDT TUE JUL 29 2025
SYNOPSIS
MINOR DAY TO DAY CHANGES ARE EXPECTED THROUGH THE WEEK AS WEAK
TROUGHING PERSISTS. THIS WILL BRING NEAR AVERAGE TEMPERATURES WITH
MARINE LAYER CLOUDS EACH NIGHT AND MORNING NEAR THE COAST AND
ADJACENT VALLEYS. HIGH PRESSURE TO THE SOUTH MAY BRING SLIGHTLY
WARMER WEATHER BY THE WEEKEND TO INLAND AREAS, BUT NEAR TO BELOW
AVERAGE TEMPERATURES MAY RETURN BY NEXT WEEK.
DISCUSSION...FOR EXTREME SOUTHWESTERN CALIFORNIA INCLUDING ORANGE
SAN DIEGO...WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO
COUNTIES...
BEAUTIFUL CLEAR SKIES ARE SEEN OVER SOCAL THIS AFTERNOON OUT OUR
WINDOW AND ON GOES IMAGERY. LOW CLOUDS WILL RETURN THIS EVENING
ACROSS THE COAST AND WESTERN VALLEYS WITH SLIGHTLY LESS INLAND
EXTENT THAN THIS MORNING. THE WEATHER PATTERN REMAINS STAGNANT
WITH HIGH PRESSURE OVER NORTHERN MEXICO AND A TROUGH DRAPED ACROSS
NORTHERN CALIFORNIA. THIS PATTERN WILL REMAIN RELATIVELY
UNCHANGED THROUGH FRIDAY, BRINGING TEMPERATURES NEAR NORMAL AND
ELEVATED DIURNAL WINDS ACROSS THE MOUNTAIN DESERT SLOPES INTO THE
DESERTS. HIGHS WILL BE IN THE 90S FOR THE INLAND EMPIRE AND HIGH
DESERT, CLOSER TO 110 ACROSS THE LOWER DESERTS; OTHER AREAS WILL
BE IN THE 70S AND 80S.
MODELS DEPICT HIGH PRESSURE ACROSS MEXICO EXPANDING OVER SOUTHERN
CALIFORNIA BY THE WEEKEND. THIS MAY HELP TEMPERATURES RISE A FEW
DEGREES, ESPECIALLY IN THE LOWER DESERTS, WHERE HIGHS MAY RISE
NEAR 5 DEGREES ABOVE NORMAL IN THE COACHELLA VALLEY. ENSEMBLE
MODELS SHOW THE POTENTIAL FOR YET ANOTHER TROUGH TO FORM OVER THE
WEST COAST, WHICH WOULD BRING NEAR NORMAL TO SLIGHTLY BELOW NORMAL
TEMPERATURES WITH CONTINUED DRY WEATHER.
AVIATION
292030Z....COAST/WESTERN VALLEYS...LOW CLOUDS WILL DEVELOP AND MOVE
NOT VERY FAR INLAND TONIGHT 04-11Z, WITH BASES AROUND 600-1000 FEET
MSL AND VIS 3-5SM, EXCEPT 1-2SM ON HIGHER COASTAL TERRAIN. SCATTER
OUT WEDNESDAY 15-17Z.
INLAND VALLEYS/MOUNTAINS/DESERTS
MOSTLY CLEAR WITH VFR CONDITIONS
THROUGH WEDNESDAY.
MARINE
NO HAZARDOUS MARINE CONDITIONS ARE 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...APR
AVIATION/MARINE...MM
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