109
FXUS66 KSGX 150824
AFDSGX
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN DIEGO CA
124 AM PDT WED JUL 15 2026
SYNOPSIS
THE HEAT IS EXPECTED TO PEAK TODAY WITH HIGH TEMPERATURES 5 TO 10
DEGREES ABOVE AVERAGE. HIGH TEMPERATURES WILL COOL A FEW DEGREES
ON THURSDAY, THEN COOL TO AROUND AVERAGE FOR FRIDAY INTO EARLY
NEXT WEEK. DRIER TODAY, THEN A SLIGHT CHANCE OF AFTERNOON SHOWERS
AND THUNDERSTORMS WILL RETURN THURSDAY, MOSTLY FOR THE MOUNTAINS,
AND CONTINUE FOR EACH AFTERNOON INTO NEXT WEEK.
DISCUSSION...FOR EXTREME SOUTHWESTERN CALIFORNIA INCLUDING ORANGE
SAN DIEGO...WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO
COUNTIES...
SHORT TERM (TODAY THROUGH FRIDAY)
THE HEAT IS EXPECTED TO PEAK TODAY WITH HIGH TEMPERATURES AROUND 5
DEGREES WARMER FOR INLAND AREAS THAN TUESDAY AND AROUND 5 TO 10
DEGREES ABOVE AVERAGE. HIGH TEMPERATURES FOR TODAY WILL RANGE FROM
THE MID 70S TO NEAR 80 AT THE COAST TO THE UPPER 90S TO 108 FOR
THE INLAND EMPIRE WITH 110 TO 114 FOR THE LOWER DESERTS. HIGH
TEMPERATURES WILL COOL A FEW DEGREES ON THURSDAY. THERE WILL BE
GREATER COOLING ON FRIDAY WITH HIGH TEMPERATURES COOLING TO AROUND
AVERAGE FOR FRIDAY THROUGH MONDAY. HIGH TEMPERATURES ON FRIDAY
WILL RANGE FROM THE 70S NEAR THE COAST TO THE 90S FOR THE INLAND
EMPIRE WITH 104 TO 108 FOR THE LOWER DESERTS.
THE DRYING AND STABILIZATION TREND OF TUESDAY WILL CONTINUE TODAY
WITH A SLIGHT CHANCE OF SHOWERS FOR THIS AFTERNOON FOR THE
MOUNTAINS. SOME MONSOONAL MOISTURE IN SOUTH TO SOUTHEAST FLOW
ALOFT WILL RETURN FOR THURSDAY AND FRIDAY WITH A SLIGHT CHANCE FOR
AFTERNOON SHOWERS, MAINLY IN THE MOUNTAINS.
LONG TERM (SATURDAY THROUGH TUESDAY)
HIGH TEMPERATURES WILL REMAIN AROUND THROUGH MONDAY. THERE IS A SLIGHT
CHANCE FOR SHOWERS AND THUNDERSTORMS EACH AFTERNOON, MAINLY FOR
THE MOUNTAINS.
AVIATION
150500Z....COAST/VALLEYS...SKC AND VFR CONDITIONS EXPECTED THROUGH
EARLY WEDNESDAY MORNING. AREAS OF LOW CLOUDS BASED 600-1000 FT MSL
ARE EXPECTED TO DEVELOP OVER COASTAL SAN DIEGO COUNTY 10-12Z WED.
PATCHY CLOUDS MAY BRIEFLY DEVELOP OVER COASTAL ORANGE COUNTY AFTER
12Z. MINOR VIS REDUCTIONS (1-5SM) EXPECTED FOR ELEVATED COASTAL
TERRAIN AND WESTERN VALLEYS (I-15 CORRIDOR). LOW CLOUDS SCATTER BACK
TO THE COAST BY 15-16Z. OTHERWISE, VFR CONDITIONS PREVAIL WITH FEW
HIGH CLOUDS ABOVE 10 KFT WEDNESDAY AFTERNOON.
MOUNTAINS/DESERTS...SCT CU BASED AROUND 10,000 FT ALONG WITH ISOLD
SHRA OVER MOUNTAIN RIDGES WEDNESDAY AFTERNOON. OTHERWISE, FEW-SCT
HIGH CLOUDS AOA 15,000 FT.
MARINE
NO HAZARDOUS MARINE CONDITIONS ARE EXPECTED THROUGH SATURDAY.
BEACHES
ASTRONOMICAL HIGH TIDES PEAKING 7.0-7.5 FT CURRENTLY WILL PEAK AGAIN
AROUND 6.5-7.0 FEET WEDNESDAY EVENING. HIGH TIDES COMBINE WITH A
MODEST SOUTH SWELL (2 FT SWELL AT 13-15 SECONDS FROM 190 DEGREES) TO
GENERATE SURF OF 3-5 FT FOR SOUTH-FACING BEACHES AND 2-4 FT
ELSEWHERE. THIS WILL PRODUCE AREAS OF COASTAL FLOODING IN LOW LYING
AREAS, BOARDWALKS, BEACH PARKING LOTS, AND BEACH ADJACENT STREETS
DURING EVENING HIGH TIDES. A BEACH HAZARDS STATEMENT REMAINS IN
EFFECT THROUGH WEDNESDAY EVENING AND CONTAINS FURTHER DETAILS. THERE
WILL BE AN INCREASED RISK OF RIP CURRENTS THROUGH WEDNESDAY.
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 WEDNESDAY EVENING FOR ORANGE
COUNTY COASTAL AREAS-SAN DIEGO COUNTY COASTAL AREAS.
HEAT ADVISORY FROM 10 AM WEDNESDAY TO 8 PM PDT THURSDAY FOR
ORANGE COUNTY COASTAL AREAS-SAN DIEGO COUNTY COASTAL AREAS.
EXTREME HEAT WARNING FROM 10 AM WEDNESDAY TO 8 PM PDT THURSDAY
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.
EXTREME HEAT WARNING UNTIL 8 PM PDT THURSDAY FOR COACHELLA
VALLEY-SAN DIEGO COUNTY DESERTS.
PZ...NONE.
PUBLIC...17
AVIATION/MARINE/BEACHES...KW
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page