CALWIRE Weather Roundup (Thursday, September 10, 2026)
By Calwire Weather Desk
17 active weather alerts statewide today, led by a extreme heat warning for Death Valley National Park, plus coverage for San Diego County Coastal Areas, Coachella Valley.
Related: CALWIRE Weather Roundup (Thursday, July 16, 2026) · CALWIRE Weather Roundup (Thursday, July 23, 2026)
EXTREME HEAT WARNING — Death Valley National Park
Extreme Heat Warning issued September 10 at 2:28AM PDT until September 10 at 8:00PM PDT by NWS Las Vegas NV
EXTREME HEAT WARNING — San Diego County Coastal Areas
Extreme Heat Warning issued September 10 at 4:00AM PDT until September 10 at 8:00PM PDT by NWS San Diego CA
EXTREME HEAT WARNING — Coachella Valley
Extreme Heat Warning issued September 10 at 4:00AM PDT until September 11 at 8:00PM PDT by NWS San Diego CA
HEAT ADVISORY — Riverside County Mountains
Heat Advisory issued September 10 at 4:00AM PDT until September 10 at 8:00PM PDT by NWS San Diego CA
EXTREME HEAT WARNING — Orange County Inland
Extreme Heat Warning issued September 10 at 4:00AM PDT until September 10 at 8:00PM PDT by NWS San Diego CA
EXTREME HEAT WARNING — Santa Ana Mountains and Foothills
Extreme Heat Warning issued September 10 at 4:00AM PDT until September 10 at 8:00PM PDT by NWS San Diego CA
EXTREME HEAT WARNING — San Diego County Inland Valleys
Extreme Heat Warning issued September 10 at 4:00AM PDT until September 10 at 8:00PM PDT by NWS San Diego CA
EXTREME HEAT WARNING — San Bernardino and Riverside County Valleys-The Inland Empire
Extreme Heat Warning issued September 10 at 4:00AM PDT until September 10 at 8:00PM PDT by NWS San Diego CA
HEAT ADVISORY — West Side Mountains north of 198
Heat Advisory issued September 10 at 3:50AM PDT until September 10 at 10:00PM PDT by NWS Hanford CA
EXTREME HEAT WARNING — Imperial County Southwest
Extreme Heat Warning issued September 10 at 1:12AM MST until September 11 at 8:00PM MST by NWS Phoenix AZ
EXTREME HEAT WARNING — Palo Verde Valley
Extreme Heat Warning issued September 10 at 1:12AM MST until September 11 at 8:00PM MST by NWS Phoenix AZ
BEACH HAZARDS STATEMENT — Catalina and Santa Barbara Islands
Beach Hazards Statement issued September 9 at 12:56PM PDT until September 11 at 12:00AM PDT by NWS Los Angeles/Oxnard CA
HEAT ADVISORY — Sierra Nevada of Tehama-Butte-Plumas Counties Between 1000-3000 ft
Heat Advisory issued September 9 at 10:37AM PDT until September 10 at 10:00PM PDT by NWS Sacramento CA
EXTREME HEAT WARNING — Cuyama Valley
Extreme Heat Warning issued September 9 at 8:09AM PDT until September 10 at 8:00PM PDT by NWS Los Angeles/Oxnard CA
EXTREME HEAT WARNING — Catalina and Santa Barbara Islands
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