A record-setting ridge of high pressure (600 dm over northern New Mexico) built in over the Great Basin and desert Southwest, beginning around June 28th, lasting through approximately July 7, when it hit another peak in temperatures. This resulted in extreme high temperatures, especially in the Coachella Valley and San Diego County mountains, as well as well above normal across the region, as a…
Every event with a place to put it; 5 filed by county or forecast zone are drawn at its center, in a lighter ring. Tap one for its entry below.
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS SGX wrote it up.
A record-setting ridge of high pressure (600 dm over northern New Mexico) built in over the Great Basin and desert Southwest, beginning around June 28th, lasting through approximately July 7, when it hit another peak in temperatures. This resulted in extreme high temperatures, especially in the Coachella Valley and San Diego County mountains, as well as well above normal across the region, as a whole, during this period.
The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS San Diego, CA wrote its last area forecast discussion before the first event at Jun 28, 9:00 AM PST, 3 hours earlier.
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</html>HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE SAN DIEGO CA 400 AM PDT FRI JUN 28 2013 CAZ042-043-290200- ORANGE COUNTY COASTAL AREAS- SAN DIEGO COUNTY COASTAL AREAS- 400 AM PDT FRI JUN 28 2013 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF EXTREME SOUTHWESTERN CALIFORNIA. .DAY ONE...TODAY AND TONIGHT STRONG RIP CURRENTS AT AREA BEACHES. PATCHY DENSE FOG ALONG COAST. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH WEDNESDAY THROUGH SUNDAY...STRONG RIP CURRENTS AT AREA BEACHES. PATCHY DENSE FOG WILL BE POSSIBLE ALONG THE COAST EACH MORNING. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY. CAZ050-057-290200- SAN DIEGO COUNTY VALLEYS- SANTA ANA MOUNTAINS AND FOOTHILLS- 400 AM PDT FRI JUN 28 2013 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF EXTREME SOUTHWESTERN CALIFORNIA. .DAY ONE...TODAY AND TONIGHT NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH WEDNESDAY THROUGH SUNDAY...HOT DAYS WITH HIGHS IN THE 90S TO AROUND 100. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY. CAZ055-056-058-060>062-290200- SAN BERNARDINO COUNTY MOUNTAINS- RIVERSIDE COUNTY MOUNTAINS- SAN DIEGO COUNTY MOUNTAINS- APPLE AND LUCERNE VALLEYS- COACHELLA VALLEY- SAN DIEGO COUNTY DESERTS- 400 AM PDT FRI JUN 28 2013 ...EXCESSIVE HEAT WARNING IN EFFECT FRIDAY THROUGH SUNDAY... THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF EXTREME SOUTHWESTERN CALIFORNIA. .DAY ONE...TODAY AND TONIGHT EXCESSIVE HEAT BY MIDDAY WITH MAXIMUM TEMPERATURES WELL INTO THE 90S IN THE MOUNTAINS...AND FROM 110 TO 120 IN THE DESERTS. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH WEDNESDAY THROUGH SUNDAY...EXCESSIVELY HOT DAYS WITH MAXIMUM TEMPERATURES WELL INTO THE 90S IN THE MOUNTAINS...AND FROM 110 TO 120 IN THE DESERTS. CONTINUED QUITE HOT MONDAY. SLIGHT COOLING TUESDAY. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY. CAZ048-290200- SAN BERNARDINO AND RIVERSIDE COUNTY VALLEYS-THE INLAND EMPIRE- 400 AM PDT FRI JUN 28 2013 ...EXCESSIVE HEAT WARNING IN EFFECT FROM SATURDAY MORNING THROUGH SUNDAY EVENING... THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF EXTREME SOUTHWESTERN CALIFORNIA. .DAY ONE...TODAY AND TONIGHT BECOMING HOT THIS AFTERNOON WITH HIGHS 97 TO 107. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH WEDNESDAY THROUGH SUNDAY...EXCESSIVELY HOT WITH MAXIMUM TEMPERATURES OF 102 TO 112 DEGREES. CONTINUED QUITE HOT ON MONDAY WITH HIGHS NEAR 100 DEGREES. NOT AS HOT ON TUESDAY. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY. JAD
The national radar mosaic for the moment the first event began.
5 excessive heat. Local standard time, as filed.
The Palm Springs ASOS recorded a high temperature of 118 degrees, which tied the previous record set on the 28th in 1979. The Indio mesonet station also tied their old record at 118, set in 2003.
The Palm Springs and Thermal ASOS stations both recorded a high temperature of 122 degrees, which broke their old records of 121 and 118, respectively, in 1994. The Indio mesonet station set a record high of 121, breaking their old record of 117, set also in 1994.
The Campo COOP station recorded a high temperature of 106 degrees, which broke their previous record of 103, set in 1972.
The Borrego Desert State Park COOP station recorded a high temperature of 120 degrees, which broke their previous record of 118, set in 1973.
The Campo COOP observer recorded a high temperature of 107 degrees, which broke the previous record of 101, set in 2006.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in California in 2013Every state in 2013This day in weather historyWarnings in California, June 2013
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-30. Each event’s entry at NCEI: 471358, 471359, 471361, 471364, 471365.