625
FXUS66 KSGX 031148
AFDSGX
Area Forecast Discussion
National Weather Service San Diego CA
448 AM PDT Fri Apr 3 2026
.SYNOPSIS...
Santa Ana winds will develop and strengthen this morning with
gusts to 35 to 45 mph along and below the coastal slopes of the
mountains. The winds will weaken some this afternoon with more
localized winds with gusts to 30 to 40 mph continuing into
Saturday morning. High temperatures will warm for today and
Saturday with Saturday high temperatures 10 to 15 degrees above
average for the coast and valleys. Inland areas will continue to
warm on Sunday while coastal areas begin to cool with only slight
changes for Monday and Tuesday. For Wednesday and Thursday, high
pressure aloft will weaken and onshore flow will strengthen. High
temperatures will cool with Thursday high temperatures a few to
around 5 degrees below average.
&&
.DISCUSSION...FOR EXTREME SOUTHWESTERN CALIFORNIA INCLUDING ORANGE...
SAN DIEGO...WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO
COUNTIES...
.SHORT TERM (Today through Sunday)...
Offshore flow will develop and strengthen this morning with
northeast winds gusting to 35 to 45 along and below the coastal
slopes of the mountains. The winds will diminish some during this
afternoon with more localized winds with gusts to 30 to 40 mph
continuing through tonight into Saturday morning.
High temperatures today will warm around 5 degrees for the deserts
to around 10 to 15 degrees for the valleys and inland Orange
County. There will be additional warming of around 5 degrees for
most areas on Saturday. High temperatures on Saturday will range
from the 70s near the coast to the 80s for the Inland Empire and
inland Orange County with the lower deserts around 90.
For Sunday, onshore flow will bring cooling of a few to around 5
degrees for the coast and valleys with the mountains and deserts
warming around 5 degrees. High temperatures on Sunday will range
from the lower 70s near the coast to the lower to mid 80s for the
Inland Empire with the lower deserts in the mid 90s.
&&
.LONG TERM (Monday through Thursday)...
Not much change is expected for Monday with the coast and valleys
slightly cooler on Tuesday with the mountains and deserts slightly
warmer. For Wednesday and Thursday, high pressure aloft over
California will weaken and onshore flow across southern California
will strengthen. This will spread cooling inland of around 5
degrees on Wednesday and another 4 to 8 degrees on Thursday with
Thursday high temperatures a few to around 5 degrees below
average. High temperatures on Thursday will range from the 60s
near the coast to the lower 70s for the valleys and inland Orange
County with the lower deserts in the 80s.
There is a slight chance of showers for Wednesday night through
Thursday night but with large spread and low confidence in the
details.
&&
.AVIATION...
031200Z...Coast/Valleys/Foothills...Iso areas of low clouds 1500-
2000 ft MSL will lead to localized periods of MVFR through 13Z,
followed by widespread VFR skies. North to northeast winds will
continue to pick up along coastal slopes, foothills, and downwind of
the Cajon/Banning Passes into the Inland Empire. Gusts 30-50 kts
expected for coastal slopes of the San Bernardino/Santa Ana mtns and
just below the Cajon Pass. Gusts 25-35 kts elsewhere. Winds weaken
for all areas 03-06Z Sat with gusts over 20 kts becoming confined to
coastal slopes.
Mountain ridges/deserts...VFR conditions expected through tonight.
North to northeast gusty winds through the Coachella Valley where
with gusts 20-30 kts at KPSP and KTRM through early this afternoon.
&&
.MARINE...No hazardous marine conditions expected through Tuesday.
&&
&&
.CLIMATE...
Similar to Palm Springs, Borrego Springs also set or tied a large
number of temperature records in March 2026, though with a period
of record going back to 1965 versus 1893 for Palm Springs. Here
are some of those details for Borrego Springs for March 2026:
- The new warmest average temperature for March is now 77.3
degrees, exceeding the previous record of 72.7 in 1972 by 4.6
degrees! If that warmest average temperature for March of 77.3
had occurred in April, it would have been the second warmest
April on record.
- The new warmest average MINIMUM temperature for March is now
62.4 degrees, exceeding the previous record of 57.7 in 2015 by
4.7 degrees!
- The new warmest average MAXIMUM temperature for March is now
92.2 degrees, exceeding the previous record of 88.5 in 1972 by
3.7 degrees.
- The new highest temperature for March is now 106, set on 20
March 2026. Prior to 2026, the record was 101 on 31 March 1989.
That 1989 record was exceeded on four days in March 2026, from
the 18th-21st, and also tied the pre-2026 record of 101 on the
27th of March 2026.
- The new warmest daily minimum temperature for March is now 74,
set on 29 March 2026. Prior to 2026, the record was 70 on 7
March 1972. That 1972 record was exceeded on SIX days in March
2026 on the 17th, 19th-21st, 29th, and 31st and tied the
pre-2026 record of 70 on the 18th of March 2026.
- Daily high temperature records were broken on 11 days and tied
on one day. Four of those new daily records exceeded the record
for the month prior to 2026. There was a 19-day stretch from the
19th to the 30th where every high temperature was within the
four warmest for the date.
- Daily warmest low temperature records were broken on 13 days and
tied on another one day. The new March record of 74 on the 29th
exceeded the previous record for the date by 11 degrees! The new
records on the 1st and 19th exceeded the previous record for
the date by 9 degrees! Six of the new daily records exceeded the
record for the month prior to 2026 and two tied that pre-2026
record. There was a 20-day stretch from the 12th to the 31st
where every low temperature was within the five warmest for the
date.
&&
.SGX WATCHES/WARNINGS/ADVISORIES...
CA...Wind Advisory until 8 PM PDT this evening for Orange County
Inland Areas-San Bernardino County Mountains-San Bernardino
and Riverside County Valleys-The Inland Empire-San Gorgonio
Pass near Banning-Santa Ana Mountains and Foothills.
PZ...None.
&&
$$
PUBLIC...Martin
AVIATION/MARINE...CSP
Copyright © 2026 | WordPress Theme by MH Themes