347
FXUS66 KSGX 280459
AFDSGX
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN DIEGO CA
959 PM PDT FRI MAR 27 2026
SYNOPSIS
WELL ABOVE AVERAGE TEMPERATURES WILL CONTINUE THROUGH THE WEEKEND.
LOW CLOUDS WITH AREAS OF DENSE FOG ALONG THE COAST TONIGHT INTO
SATURDAY MORNING, WITH LOW CLOUDS AND FOG LESS LIKELY LATE IN THE
WEEKEND AND EARLY NEXT WEEK DUE TO WIDESPREAD HIGH CLOUD
COVERAGE. COOLER, WINDIER, AND POTENTIALLY WETTER CONDITIONS
POSSIBLE FOR THE MIDDLE OF NEXT WEEK.
DISCUSSION...FOR EXTREME SOUTHWESTERN CALIFORNIA INCLUDING ORANGE
SAN DIEGO...WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO
COUNTIES...
..UPDATED 06Z AVIATION DISCUSSION BELOW
HIGHS TODAY ARE ON TRACK TO BE A FEW DEGREES WARMER THAN YESTERDAY
FOR MOST INLAND LOCATIONS, WITH CONTINUED WARMING FOR THE COAST AND
VALLEYS INTO SATURDAY. THE HEAT WILL CONTINUE TO BE RECORD BREAKING
FOR THIS TIME OF YEAR, WITH ADDITIONAL INLAND LOCATIONS AGAIN
FORECAST TO BREAK OR TIE TEMPERATURE RECORDS THROUGH SUNDAY. THE
LIST OF LOCATIONS THAT BROKE OR TIED THEIR DAILY HIGH OR LOW
TEMPERATURE RECORDS YESTERDAY IS ON OUR WEATHER.GOV/SANDIEGO
HOMEPAGE. HIGH TEMPERATURES WILL BE 10 TO 25 DEGREES ABOVE AVERAGE
ACROSS THE AREA THROUGH SUNDAY.
MARINE LAYER LOW CLOUDS WILL BE PRESENT TONIGHT INTO SATURDAY. AREAS
OF DENSE FOG ARE POSSIBLE ALONG THE COAST AND OVER THE COASTAL
WATERS. CHANCES OF DENSE FOG DECREASE FOR THE LATTER HALF OF THE
WEEKEND INTO EARLY NEXT WEEK.
A PATTERN CHANGE IS EXPECTED NEXT WEEK AS AN AREA OF LOW PRESSURE
APPROACHES THE US WEST COAST. COOLER, CLOUDIER, AND WINDIER
CONDITIONS ARE EXPECTED FOR THE MIDDLE OF THE WEEK. THERE
REMAINS SOME UNCERTAINTY IN THE TIMING OF THE LOW'S PASSAGE, WITH
MOST SOLUTIONS SHOWING THE LOW PASSING SOMETIME WEDNESDAY OR
THURSDAY. BY FRIDAY ABOUT 50 PERCENT OF SOLUTIONS KEEP THE WEST
COAST UNDER THE LOW'S INFLUENCE. THE LATEST FORECAST HAS THE
COOLEST AND WINDIEST CONDITIONS WEDNESDAY AND THURSDAY.
THE TRACK OF THE LOW CONTINUES TO TREND NORTH OF SOUTHERN
CALIFORNIA, WHICH CONTINUES TO LIMIT HOW MUCH PRECIPITATION WILL
FALL. ADDITIONALLY IF THE TRACK CONTINUES TO TREND NORTH, CHANCES OF
RAIN FOR SAN DIEGO COUNTY WILL BECOME MORE LIMITED. THERE ARE STILL
SOME SOLUTIONS SHOWING THE POTENTIAL FOR AT LEAST LIGHT
PRECIPITATION AS EARLY AS TUESDAY NIGHT CONTINUING THROUGH AS LATE
AS FRIDAY. CURRENT FORECAST HAS THE HIGHEST CHANCES (15-25 PERCENT)
OF RAIN TUESDAY NIGHT INTO WEDNESDAY. WITH THE MORE NORTHERLY TRACK,
FORECAST RAINFALL AMOUNTS HAVE DECREASED. NBM CHANCES OF RAINFALL
TOTALS REACHING OR EXCEEDING 0.10" ARE 30 TO 40 PERCENT FOR THE
COASTAL SLOPES OF THE MOUNTAINS AND PORTIONS OF THE INLAND EMPIRE
AND ORANGE COUNTY. ELSEWHERE WEST OF THE MOUNTAINS CHANCES ARE 20 TO
30 PERCENT WITH 15 PERCENT OR LESS CHANCE IN THE DESERTS. WHENEVER
THE TROUGH DECIDES TO PROGRESS EASTWARD LATER IN THE WEEK (THU-FRI),
WARMER AND DRIER WEATHER WILL FOLLOW WITH HIGHS RETURNING TO
SLIGHTLY ABOVE NORMAL.
AVIATION
280000Z...LOW CLOUDS WILL RETURN BY LATER THIS EVENING AROUND 06Z-
07Z SATURDAY. BASES WILL BE SLIGHTLY LOWER AND PATCHY IN NATURE WITH
INTERMITTENT HEIGHTS AROUND 100-700FT MSL AND REDUCED VIS 0-5SM.
LOWER VISIBILITIES WILL BE LOCATED ON HIGHER COASTAL TERRAIN, WITH
THE HIGHEST PROBABILITY OF OCCURRENCE AT AND IN VICINITY OF KCRQ.
LOW CLOUDS AND VISIBILITIES WILL BEGIN CLEARING INLAND TO THE COAST
AFTER 16Z-18Z SATURDAY. LOW CLOUDS WILL LIKELY STRUGGLE TO FORM AND
RETURN TO THE COASTAL AREAS BY 06Z SUNDAY, WITH THE INCREASE AND
PASSAGE OF MID TO HIGH LEVEL CLOUDS TOMORROW EVENING.
OTHERWISE, MOSTLY CLEAR SKIES AND VFR CONDITIONS THROUGH THE TAF
PERIOD.
MARINE
NO HAZARDOUS MARINE CONDITIONS EXPECTED THROUGH
WEDNESDAY.
SKYWARN
SKYWARN ACTIVATION IS NOT REQUESTED. HOWEVER WEATHER SPOTTERS ARE
ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS.
SGX WATCHES/WARNINGS/ADVISORIES
CA...NONE.
PZ...NONE.
PUBLIC...CO
AVIATION/MARINE...STEWEY
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