389
FXUS66 KSGX 151748
AFDSGX
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN DIEGO CA
1048 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...
..UPDATED AVIATION DISCUSSION
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
151800Z....COAST/VALLEYS...VFR PREVAILING. VERY PATCHY LOW CLOUDS
WITH BASES 700-1000FT MSL MAY IMPACT COASTAL TAF SITES AGAIN
TONIGHT. HIGHEST CHANCES FOR KSAN (~65-75% CHANCE OF CIGS OVERNIGHT
AT KSAN, 45-50% CHANCE FOR KCRQ AND 30-45% CHANCE FOR KSNA). IMPACTS
MOST LIKELY AFTER 08Z THUR. ANY CLOUDS WILL QUICKLY MOVE OUT
BY 16Z THUR. OTHERWISE, FEW HIGH CLOUDS AOA 15,000FT MSL.
MOUNTAINS/DESERTS
SCT CU BASED AROUND 12,000FT MSL ALONG WITH
ISO TSRA OVER MOUNTAIN RIDGES THIS AFTERNOON AND AGAIN THURSDAY
AFTERNOON. OTHERWISE, FEW-SCT HIGH CLOUDS AOA 15,000 FT AND VFR.
MARINE
NO HAZARDOUS MARINE CONDITIONS ARE EXPECTED THROUGH SATURDAY.
BEACHES
ASTRONOMICAL HIGH TIDES WILL PEAK AGAIN AROUND 7.0 FEET THIS
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.
HIGH AMPLITUDE SOUTHERLY SWELL (4-5 FT) WILL ARRIVE THIS WEEKEND,
BRINGING ELEVATED SURF AND STRONG RIP CURRENTS FOR SUNDAY AND INTO
EARLY NEXT WEEK. HIGHEST SURF WILL BE ALONG SOUTH AND SOUTHWEST-
FACING BEACHES.
SGX WATCHES/WARNINGS/ADVISORIES
CA...BEACH HAZARDS STATEMENT THROUGH THIS EVENING FOR ORANGE COUNTY
COASTAL AREAS-SAN DIEGO COUNTY COASTAL AREAS.
HEAT ADVISORY UNTIL 8 PM PDT THURSDAY FOR ORANGE COUNTY COASTAL
AREAS-SAN DIEGO COUNTY COASTAL AREAS.
EXTREME HEAT WARNING UNTIL 8 PM PDT THURSDAY FOR COACHELLA
VALLEY-ORANGE COUNTY INLAND AREAS-RIVERSIDE COUNTY
MOUNTAINS-SAN BERNARDINO COUNTY MOUNTAINS-SAN BERNARDINO
AND RIVERSIDE COUNTY VALLEYS-THE INLAND EMPIRE-SAN DIEGO
COUNTY DESERTS-SAN DIEGO COUNTY MOUNTAINS-SAN DIEGO COUNTY
VALLEYS-SAN GORGONIO PASS NEAR BANNING-SANTA ANA MOUNTAINS
AND FOOTHILLS.
PZ...NONE.
PUBLIC...APR
AVIATION/MARINE/BEACHES...ZUBER
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