100
FXUS66 KSGX 262050
AFDSGX
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN DIEGO CA
150 PM PDT FRI APR 26 2024
SYNOPSIS
IT WILL BE COOL AND WINDY TODAY AND TONIGHT, WITH SOME LIGHT
SHOWERS MAINLY IN SAN DIEGO COUNTY AND IN FOOTHILLS OF MOUNTAINS.
THERE IS ALSO A SMALL CHANCE OF THUNDERSTORMS IN THE HIGHER
MOUNTAINS AND ADJACENT AREAS LATE THIS AFTERNOON AND EVENING.
FAIR WEATHER WILL RETURN SATURDAY WITH HIGHER PRESSURE ALOFT. THE
MARINE LAYER WILL CONTINUE TO FURNISH LOW CLOUDS NEAR THE COAST
EACH NIGHT AND MORNING, WITH SEASONAL TEMPERATURES NEXT WEEK.
DISCUSSION...FOR EXTREME SOUTHWESTERN CALIFORNIA INCLUDING ORANGE
SAN DIEGO...WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO
COUNTIES...
THE MURKY CLOUDINESS AND DRIZZLE FROM THIS MORNING HAS LIFTED AND
BUSTED UP SOMEWHAT THIS AFTERNOON, ESPECIALLY AT THE COAST.
STRONG WESTERLY WINDS CONTINUE IN THE LEE SLOPES OF MOUNTAINS INTO
THE DESERTS WITH ISOLATED GUSTS OVER 60 MPH AROUND SAN GORGONIO
PASS. A VIGOROUS SHORTWAVE OF LOW PRESSURE WILL SHOOT THROUGH
INTERIOR SOCAL THIS EVENING. THIS WILL CONTINUE TO FORCE STRONG
WINDS IN THE MOUNTAINS AND DESERTS, BUT ALSO BOOST COASTAL WINDS
THIS AFTERNOON. ISOLATED TO SCATTERED LIGHT SHOWERS WILL CONTINUE,
MAINLY IN FOOTHILLS TODAY. AS THE WAVE AXIS MOVES THROUGH THIS
AFTERNOON AND EVENING, IT WILL BRING COLDER AIR ALOFT,
DESTABILIZING THE ATMOSPHERE ESPECIALLY IN THE INTERIOR. THAT'S
WHY THERE'S A SMALL CHANCE OF THUNDERSTORMS OVER THE HIGHER
MOUNTAINS IN SBD AND RIV COUNTIES AND ADJACENT VALLEYS LATE THIS
AFTERNOON AND EVENING. SAN DIEGO COUNTY VALLEYS WILL GET AN
ENHANCED CHANCE OF SHOWERS DURING THIS TIME. SHOWERS AND WINDS
DECREASE OVERNIGHT AND ALL THAT'S LEFT BY SUNRISE SATURDAY WILL BE
THE CLOUDS FROM MOUNTAINS WESTWARD. CLEARING OUT SATURDAY SHOULD
GET AN EARLY START IN ORANGE COUNTY BEFORE THE REST OF THE AREA
CLEARS OUT BY LATE MORNING, ALTHOUGH SOME CUMULUS CLOUDS WILL FORM
OVER THE MOUNTAINS. WEAK HIGH PRESSURE ALOFT WILL BRING FAIR AND
WARMER WEATHER NEXT WEEK. HIGH TEMPERATURES ALL WEEK WILL BE NEAR
NORMAL AT THE COAST AND SLIGHTLY ABOVE NORMAL INLAND. A COASTAL
EDDY AND A PERSISTENT MARINE LAYER WILL CONTRIBUTE COASTAL CLOUDS
DURING THE NIGHTS AND MORNINGS. WHILE UNCERTAINTY CONTINUES IN THE
UPPER AIR PATTERN NEXT WEEK, THE RANGE OF OUTCOMES IS RATHER
SMALL. A WEAK RIDGE PATTERN WILL PREVAIL. FOR NOW IT LOOKS LIKE
FAIR AND TRULY SPRING-LIKE WEATHER, WITH SEASONAL TEMPERATURES
AND LOW CLOUDS NEAR THE COAST DURING NIGHTS AND MORNINGS.
AVIATION
262040Z...COAST/VALLEYS/FOOTHILLS...LOW CLOUDS WITH CIGS AROUND 3000
FEET MSL WITH TOPS TO 5000 FEET MSL. SOME DZ/-RA. LOCAL VIS 3-5SM
WITH HIGHER TERRAIN LOCALLY OBSCURED. WEST WIND GUSTS 20-30 KTS.
MOUNTAIN RIDGES/DESERTS...AREAS OF WEST TO NORTHWEST WINDS WITH
SURFACE GUSTS 25-40 KT. OCCASIONAL LLWS AND ROTORS ALONG DESERT
SLOPES AND ADJACENT DESERT AREAS, INCLUDING VCNTY KPSP,
ALONG WITH MOD TO STG UP/DOWNDRAFTS. AREAS OF REDUCED VIS 3-5SM IN
BLDU IN DESERTS. CHANCES ARE MODERATE TO HIGH FOR WIND GUSTS
GREATER THAN 45 KTS. SLIGHT CHANCE OF THUNDERSTORMS NEAR
MOUNTAINS.
MARINE
STRONG NORTHWEST WINDS AND HIGHER COMBINED SEAS WITH CHOPPY
CONDITIONS WILL GENERATE HAZARDOUS BOATING CONDITIONS THROUGH EARLY
SATURDAY, ESPECIALLY BEYOND 15 NAUTICAL MILES OFFSHORE. GALE FORCE
WINDS ARE POSSIBLE AT TIMES TONIGHT NEAR SAN CLEMENTE ISLAND. THE
SMALL CRAFT ADVISORY CONTAINS FURTHER DETAILS. WINDS AND SEAS
SUBSIDE LATE SATURDAY AND CALMER WINDS AND SEAS ARE EXPECTED FOR
SUNDAY INTO THE MIDDLE OF NEXT WEEK.
BEACHES
SHORT-PERIOD WIND SWELLS WILL PRODUCE SOME ELEVATED SURF, MAINLY ON
EXPOSED WEST-FACING BEACHES OF SAN DIEGO COUNTY. SURF AND SWELLS
WILL PEAK THIS AFTERNOON WITH SETS TO 7 FEET THEN SUBSIDE TONIGHT
INTO SATURDAY.
SKYWARN
SKYWARN ACTIVATION IS NOT REQUESTED. HOWEVER WEATHER SPOTTERS ARE
ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS.
SGX WATCHES/WARNINGS/ADVISORIES
CA...BEACH HAZARDS STATEMENT THROUGH SATURDAY MORNING FOR ORANGE
COUNTY COASTAL AREAS-SAN DIEGO COUNTY COASTAL AREAS.
WIND ADVISORY UNTIL 11 PM PDT THIS EVENING FOR APPLE AND LUCERNE
VALLEYS-COACHELLA VALLEY-RIVERSIDE COUNTY MOUNTAINS-SAN
BERNARDINO COUNTY MOUNTAINS-SAN DIEGO COUNTY DESERTS-SAN
DIEGO COUNTY MOUNTAINS-SAN GORGONIO PASS NEAR BANNING.
PZ...SMALL CRAFT ADVISORY UNTIL 7 AM PDT SATURDAY FOR COASTAL WATERS
FROM SAN MATEO POINT TO THE MEXICAN BORDER AND OUT TO 30 NM.
SMALL CRAFT ADVISORY UNTIL 11 AM PDT SATURDAY FOR WATERS FROM
SAN MATEO POINT TO THE MEXICAN BORDER EXTENDING 30 TO 60 NM
OUT INCLUDING SAN CLEMENTE ISLAND.
PUBLIC...MM
AVIATION/MARINE/BEACHES...SMALL
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