701
FXUS66 KSGX 120436
AFDSGX
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN DIEGO CA
836 PM PST SUN JAN 11 2026
SYNOPSIS
MODERATE TO LOCALLY STRONG SANTA ANA WINDS WILL CONTINUE ALONG
THE COASTAL MOUNTAIN SLOPES, FOOTHILLS, AND INTO THE VALLEYS
THROUGH MONDAY. PERIODS OF WEAKER SANTA ANA WINDS WILL CONTINUE
THROUGH THE REMAINDER OF THE WEEK. A WARMING TREND CONTINUES,
WITH TEMPERATURES PEAKING AROUND THE MIDDLE OF THE WEEK.
WEDNESDAY AND THURSDAY WILL LIKELY BE THE WARMEST DAYS.
DISCUSSION...FOR EXTREME SOUTHWESTERN CALIFORNIA INCLUDING ORANGE
SAN DIEGO...WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO
COUNTIES...
WINDS WERE STILL ELEVATED AT 8:30 PM WITH THE STRONGEST GUSTS AT 45-
55 MPH GUSTING NEAR THE MOUNTAIN FOOTHILLS AND BELOW PASSES. A PEAK
WIND GUST REPORT DETAILING THE STRONGEST WINDS TODAY IS HEADLINED ON
OUR WEATHER.GOV/SANDIEGO HOMEPAGE. WINDS WILL REMAIN ELEVATED
OVERNIGHT INTO MONDAY MORNING WITH THOSE 45-55 MPH GUSTS BECOMING
MORE WIDESPREAD ON THE COASTAL SLOPES AND ONTO MOUNTAIN FOOTHILLS.
WINDS WILL WEAKEN AND BECOME MORE LOCALIZED THROUGH THE AFTERNOON
MONDAY. WHERE THE WIND IS BLOWING, OVERNIGHT LOWS WILL REMAIN
ELEVATED WITH WIND- SHELTERED LOCATIONS IN FOR ANOTHER CHILLY
NIGHT. WEAKER WINDS AND WARMER CONDITIONS ARE EXPECTED FOR THE
MIDDLE OF THE WEEK.
FROM PREVIOUS DISCUSSION ISSUED AT 2 PM JAN 11, 2025...
WHILE OFFSHORE SANTA ANA WINDS WILL CONTINUE THROUGH THE REST OF
NEXT WEEK, THE STRONGEST PERIOD OF WINDS IS VERY LIKELY TO BE THIS
MORNING. WINDS BEGIN TO DIMINISH LATE THIS AFTERNOON AS THE UPPER
LEVEL LOW OVER CENTRAL BAJA CALIFORNIA STARTS TO MOVE EASTWARDS, AND
HIGH PRESSURE OVER THE GREAT BASIN WEAKENS. WINDS WILL STILL BE
MODERATE TO LOCALLY STRONG THROUGH MONDAY AFTERNOON, AND THE WIND
ADVISORY REMAINS IN EFFECT UNTIL MID-AFTERNOON MONDAY FOR THE
MOUNTAINS TO THE VALLEYS. WINDS CONTINUE TO WEAKEN THROUGH AT LEAST
MID-WEEK, SO THOUGH OFFSHORE WINDS WILL LINGER THEY'LL BE IN THE
WEAK TO LOCALLY MODERATE RANGE. STRONGEST WINDS WILL CONTINUE TO BE
IN THE FOOTHILLS AND PASSES.
THE WARM, DRY AIRMASS WILL REMAIN IN PLACE FROM THE CONTINUED UPPER
LEVEL RIDGE ALONG WITH THE OFFSHORE WINDS, AND EACH AFTERNOON WILL
BE SLIGHTLY WARMER THROUGH WEDNESDAY/THURSDAY NEXT WEEK.
TEMPERATURES PEAK WED-THU AT 5-10 DEGREES ABOVE AVERAGE FOR THE
COASTS AND DESERTS AND UP TO 15 DEGREES ABOVE AVERAGE FOR MID-
JANUARY IN THE VALLEYS, WHERE THE FORECAST IS FOR HIGHS 70S INTO THE
LOW 80S. THE DRY AIRMASS WILL MAKE IT DIFFICULT FOR ANYTHING BUT
INTERMITTENT MID TO UPPER LEVEL CLOUDS TO FORM THROUGH AT LEAST MID-
WEEK, AND EFFICIENT RADIATIVE COOLING EACH NIGHT WILL LEAD TO COOLER
MORNINGS THIS WEEK FOR WIND-SHELTERED AREAS.
BY LATE NEXT WEEK (FRIDAY-SATURDAY), WHILE THERE ARE MODEL
DIFFERENCES, IT LOOKS LIKELY THAT ANOTHER WAVE WILL MOVE INTO THE
NORTHERN PLAINS/MID-WEST, WHICH COULD PROVIDE THE SUPPORT TO BUMP UP
THE OFFSHORE WINDS AGAIN. AT THE MOMENT, THE MORE LIKELY OUTCOME IS
A FAIRLY WEAK, BRIEF INCREASE IN WINDS LATE FRIDAY INTO SATURDAY,
BUT NOT TO THE STRENGTH OF TODAY'S WINDS. IN ANY CASE, WARM, DRY,
AND MOSTLY CLEAR WEATHER IS VERY LIKELY TO CONTINUE THROUGH LATE
NEXT WEEK.
AVIATION
120345Z...COAST/VALLEYS/MOUNTAINS...MOSTLY CLEAR SKIES PREVAILING.
NORTHEAST AND EAST WINDS EASING SLIGHTLY THIS EVENING WITH GUSTS
NEAR 30-40 KTS ALONG COASTAL SLOPES AND 20-35 KTS DOWNWIND OF THE
CAJON/BANNING PASSES INTO THE INLAND EMPIRE AND PARTS OF INLAND
ORANGE COUNTY/EASTERN SAN DIEGO VALLEYS. WEAKER WINDS EXPECTED BY
MONDAY AFTERNOON WITH THE STRONGEST GUSTS MORE CONFINED TO THE
MOUNTAIN SLOPES NEAR 25-35 KTS. OFFSHORE WIND PATTERN PREVAILS
THROUGH TUESDAY, CONTINUING TO WEAKEN AND BECOME MORE LOCALIZED.
PERIODS OF LLWS WITH MOD UP/DOWNDRAFTS DOWNWIND OF COASTAL SLOPES,
NOTABLY BETWEEN 06-15Z MON WHEN STRONG WINDS ARE MORE LIKELY TO
SEPARATE FROM THE SURFACE.
DESERTS...VFR CONDITIONS THROUGH MONDAY EVENING. ELEVATED NORTHEAST
WINDS STAYING MOSTLY CONFINED TO DESERT FOOTHILLS WITH GUSTS UP TO
20 KTS THROUGH MONDAY AFTERNOON.
MARINE
LOCALIZED EASTERLY WIND GUSTS NEAR 20 KNOTS SPORADICALLY THROUGH
MONDAY MORNING. OTHERWISE, NO HAZARDOUS MARINE CONDITIONS EXPECTED
THROUGH FRIDAY.
SKYWARN
SKYWARN ACTIVATION IS NOT REQUESTED. HOWEVER WEATHER SPOTTERS ARE
ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS.
SGX WATCHES/WARNINGS/ADVISORIES
CA...WIND ADVISORY UNTIL 2 PM PST MONDAY FOR ORANGE COUNTY INLAND
AREAS-RIVERSIDE COUNTY MOUNTAINS-SAN BERNARDINO COUNTY
MOUNTAINS-SAN BERNARDINO AND RIVERSIDE COUNTY VALLEYS-THE
INLAND EMPIRE-SAN DIEGO COUNTY MOUNTAINS-SAN DIEGO COUNTY
VALLEYS-SAN GORGONIO PASS NEAR BANNING-SANTA ANA MOUNTAINS
AND FOOTHILLS.
PZ...NONE.
PUBLIC...CO
AVIATION/MARINE...ZUBER
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