387
FXUS66 KSGX 212334
AFDSGX
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN DIEGO CA
334 PM PST SAT FEB 21 2026
SYNOPSIS
AFTER A COLD START TODAY, TEMPERATURES WILL TREND UPWARDS EACH
DAY THROUGH MONDAY. FAIR, DRY, AND WARM WEATHER LIKELY PERSISTS
THROUGH NEXT WEEK. DAYTIME HIGH TEMPERATURES GO ABOVE SEASONAL
AVERAGES TOMORROW AND INCREASE FROM THERE.
DISCUSSION...FOR EXTREME SOUTHWESTERN CALIFORNIA INCLUDING ORANGE
SAN DIEGO...WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO
COUNTIES...
THIS AFTERNOON, TEMPERATURES ARE 4 TO 16 DEGREES HIGHER IN THE
VALLEYS AND COASTAL AREAS THAN AT THIS TIME YESTERDAY. VARIABLE
HIGH CLOUDS MOVING IN FROM THE WEST WILL PREVENT OVERNIGHT TEMPS
FROM DROPPING AS LOW AS THEY WERE THIS MORNING BUT SOME INLAND
VALLEY AREAS WILL STILL LIKELY FALL INTO THE LOW 40S SUNDAY
MORNING. OFFSHORE PRESSURE GRADIENTS ARE WEAKENING BUT THE WIND-
PRONE AREAS ARE STILL REPORTING WIND GUSTS OF 25-35 MPH. OFFSHORE
FLOW WILL GRADUALLY WEAKEN THROUGH SUNDAY BEFORE TURNING WEAKLY
ONSHORE MONDAY AFTERNOON.
A WARMING TREND HAS BEGUN TODAY AS A HIGH PRESSURE RIDGE BUILDS
OVER THE WESTERN US. THIS RIDGE WILL DOMINATE OUR WEATHER PATTERN
THROUGH NEXT WEEK, BRINGING FAIR AND WARM WEATHER. TEMPERATURES
WILL TREND UPWARD THROUGH MONDAY THEN FLUCTUATE FROM DAY TO DAY
PEAKING AGAIN NEXT FRIDAY. ON MONDAY, TEMPERATURES WILL REACH THE
LOW 80S IN THE INLAND VALLEYS AND LOWER DESERTS...ANYWHERE FROM 8
TO 15 DEGREES ABOVE SEASONAL AVERAGES. ALL OTHER AREAS WILL ALSO
BE WARMER THAN NORMAL. NEXT FRIDAY, TEMPERATURES WILL BE IN THE
MID TO UPPER 80S WEST OF THE MTNS AND IN THE LOW 90S IN THE LOWER
DESERTS...12 TO 18 DEGREES ABOVE SEASONAL AVERAGES.
TIMING THE RETURN OF MARINE LAYER CLOUDS/FOG IN THE COASTAL AREAS
IS UNCERTAIN AT BEST BUT IT SEEMS UNLIKELY THAT THEY WILL RETURN
BEFORE TUESDAY. SOME MODELS INDICATE A RETURN OF THE MARINE LAYER
CLOUDS/FOG FOR NEXT WEDNESDAY AS A SHORTWAVE TROUGH PASSES TO THE
NORTH AND WEAKENS THE RIDGE BUT CONFIDENCE IN THIS OUTCOME REMAINS
LOW.
AVIATION
220000Z...VFR AND MOSTLY CLEAR SKIES EXPECTED THROUGH THE TAF
PERIOD. FEW-SCT CIRRUS AOA 25,000FT MSL PERSISTING INTO
SUNDAY AFTERNOON.
MARINE
NO MARINE HAZARDS ARE EXPECTED THROUGH THURSDAY.
SGX WATCHES/WARNINGS/ADVISORIES
CA...NONE.
PZ...NONE.
PUBLIC...PG
AVIATION/MARINE...MUNYAN
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