Select NOAA-NWS Forecast Office Text Products

(Product availability varies with seasons, forecast office, and weather.)

Forecast Discussion for San Diego, CA

To Select Another NWS Office Click on Map or Choose from List

County Warning Area MAP
Select Forecast Office:   Select Product:  
769
FXUS66 KSGX 051152
AFDSGX

Area Forecast Discussion
National Weather Service San Diego CA
352 AM PST Tue Nov 5 2024

.SYNOPSIS...
Dry weather will continue through the weekend. Warmer inland
today, then much cooler inland for Wednesday into Thursday with
periods of strong and gusty north to northeast Santa Ana winds for
late tonight into Thursday. Gradually warmer with weaker winds for
Friday through the weekend with a return of night and morning
coastal low clouds and fog during the weekend.

&&

.DISCUSSION...FOR EXTREME SOUTHWESTERN CALIFORNIA INCLUDING ORANGE...
SAN DIEGO...WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO
COUNTIES...

.SHORT TERM (Today through Thursday)...
Warmer inland today with weaker winds with high temperatures for
coastal areas a few degrees cooler. A low pressure system moving
southeastward from the Pacific Northwest into the Great Basin
will bring gusty west winds to high desert areas for late this
afternoon into this evening with the stronger gusts to around 40
mph. The lower level flow will turn offshore late tonight with
offshore flow continuing into Thursday afternoon.

Gusty north to northeast winds will strengthen for late tonight
into Wednesday with the strongest gusts along and below the
coastal slopes of San Bernardino County mountains to 50 mph and
along and below the coastal slopes of the Santa Ana Mountains to
60 mph. The winds will become more northeasterly for Wednesday
night and Thursday with the winds expanding into San Diego County
with gusts to 45 mph for the mountains and inland valleys in San
Diego County with locally gusty east to northeast winds extending
to near the coast for Wednesday night. The winds will subside
during Thursday afternoon.

High temperatures for Wednesday will be much cooler for inland
areas, as much as 15 to 20 degrees cooler than today for the high
desert with high temperatures for the high desert mostly in the
50s. Northern areas will begin to warm on Thursday with San Diego
County a few degrees cooler.

&&

.LONG TERM (Friday through Monday)...
The warming trend will continue into Saturday with high
temperatures mostly within a few degrees of average, around 80 in
the lower deserts and in the mid 70s to around 80 for the Inland
Empire. Not much change is expected for Sunday with cooling
beginning to spread inland on Monday as onshore flow strengthens.

&&

.AVIATION...
051030Z...Clear skies with unrestricted VIS today and tonight.
Northeast winds to develop after 10Z Wednesday, strongest in
foothills and in the corridor from Cajon Pass to central Orange
County. Initially, some LLWS will occur overnight before winds
begin to surface around sunrise Wednesday.

&&

.MARINE...
East-northeast winds will develop Wednesday morning and continue
through at least Thursday morning, with occasional gusts exceeding
20 knots. Otherwise, no hazardous marine conditions are expected
through Saturday.

&&

.FIRE WEATHER...
Onshore flow will begin to strengthen late today, then become
offshore late tonight with strengthening north to northeast winds
for late tonight into Wednesday with gusts to 50 mph along and
below the coastal slopes of the San Bernardino County mountains
into the Inland Empire, and to 60 mph along and below the coastal
slopes of the Santa Ana Mountains into inland Orange County. The
winds will become more northeasterly and expand into San Diego
County for Wednesday night into Thursday with gusts to 45 mph for
the mountains and inland valleys. Gusts to 35 mph could locally
extend to near the coast at times for Wednesday night. Lowest
humidity will fall to 10 to 15 percent on Wednesday and around 10
percent on Thursday with poor recovery to 20 to 30 percent for
Wednesday night.

For Friday into the weekend, there will be weaker winds with a
gradual warming trend and recovery in humidity with higher
humidity for coastal areas spreading inland over the weekend into
Monday.

&&

.SKYWARN...
Skywarn activation is not requested. However weather spotters are
encouraged to report significant weather conditions.

&&

.SGX WATCHES/WARNINGS/ADVISORIES...
CA...Red Flag Warning from 4 AM Wednesday to 6 PM PST Thursday for
     Orange County Inland Areas-San Bernardino County Mountains-
     Including The Mountain Top And Front Country Ranger
     Districts Of The San Bernardino National Forest-San
     Bernardino and Riverside County Valleys  -The Inland Empire-
     Santa Ana Mountains-Including The Trabuco Ranger District
     of the Cleveland National Forest.

     High Wind Watch from Wednesday evening through Thursday
     afternoon for Orange County Inland Areas-San Bernardino
     County Mountains-San Bernardino and Riverside County
     Valleys-The Inland Empire-Santa Ana Mountains and Foothills.

     Fire Weather Watch from Wednesday evening through Thursday
     afternoon for Riverside County Mountains-Including The San
     Jacinto Ranger District Of The San Bernardino National
     Forest-San Diego County Inland Valleys-San Diego County
     Mountains-Including The Palomar And Descanso Ranger
     Districts of the Cleveland National Forest.

PZ...None.

&&

$$

PUBLIC/FIRE WEATHER...17
AVIATION/MARINE...MM

Previous Forecast Discussions may be found at
NWS San Diego, CA (SGX) Office Forecast Discussions.
(Click 'Previous Version' there to view past versions successively.
Some may differ only in time posted.)

San Juan, PRHonolulu, HI Lake Charles, LA Pueblo, CO Corpus Christi, TX St. Louis, MO Reno, NV Raleigh, NC  Newport/Morehead City, NC Dodge City, KS Houston/Galveston, TX San Joaquin Valley/Hanford, CA Louisville, KY Fort Worth, TX Pittsburgh, PA Austin/San Antonio, TX Sacramento, CA Jackson, MS Phoenix, AZ Northern Indiana, IN Flagstaff, AZ Tallahassee, FL Springfield, MO Riverton, WY Blacksburg, VA Sioux Falls, SD El Paso Area, NM Columbia, SC Wilmington, NC Greenville-Spartanburg, SC Eureka, CA Midland/Odessa, TX Tucson, AZ Goodland, KS Huntsville, AL Amarillo, TX Norman, OK Lubbock, TX Marquette, MI Little Rock, AR Pendleton, OR Missoula, MT Binghamton, NY Boston, MA Green Bay, WI Billings, MT Baltimore/Washington San Diego, CA Tampa Bay, FL Morristown, TN Twin Cities, MN Brownsville, TX Portland, OR Des Moines, IA Memphis, TN Pocatello, ID San Angelo, TX Jacksonville, FL Aberdeen, SD Quad Cities, IA/IL Charleston, SC New Orleans/Baton Rouge, LA Peachtree City, GA Shreveport, LA Grand Rapids, MI Medford, OR Albany, NY Wichita, KS Gray/Portland, ME Spokane, WA Boise, ID Denver/Boulder, CO Great Falls, MT Caribou, ME Key West, FL Miami-South Florida, FL New York City/Upton, NY Melbourne, FL Hastings, NE Paducah, KY Glasgow, MT Bismarck, ND Charleston WV Omaha/Valley, NE Buffalo, NY Jackson, KY Kansas City/Pleasant Hill, MO Gaylord, MI Cheyenne, WY Grand Forks, ND Detroit/Pontiac, MI Central Illinois, IL Burlington, VT Salt Lake City, UT Topeka, KS Nashville, TN Milwaukee/Sullivan, WI Albuquerque, NM Las Vegas, NV Wakefield, VA La Crosse, WI Birmingham, AL Los Angeles/Oxnard, CA Chicago, IL Seattle, WA Rapid City, SD Indianapolis, IN Philadelphia/Mount Holly, PA Mobile/Pensacola State College, PA Cleveland, OH Elko, NV Wilmington, OH Grand Junction, CO North Platte, NE Tulsa, OK San Francisco/Monterey Bay Area, CA Duluth, MN Anchorage, AK Fairbanks, AK Juneau, AK Tiyan, GU

Products Courtesy of NOAA-NWS
NWS Information Parsing Script by Ken True at Saratoga Weather - WFO and Products Scripts by SE Lincoln Weather.
Mapping by Curly at Michiana Weather and by Tom at My Mishawaka Weather.