Weather Alert Archive | DesertWeather

Weather Alert Logs

Archive of Weather Alerts for the Coachella Valley and surrounding areas.

NWS Alert Log | DesertWeather

Local weather alerts previously issued by the National Weather Service since 09/25/2020.
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Friday August 21, 2026 21 total alerts issued on this day
LOCATIONS & ALERT COUNT: Coachella Valley 1 San Gorgonio Pass Near Banning 1 San Diego County Deserts 1 Morongo Basin 1 Imperial County 1 Riverside County Mountains 1 San Bernardino County Mountains 1

Coachella Valley

EXTREME HEAT WARNING (4 updates)
Areas affected: Coachella Valley; San Diego County Deserts; San Gorgonio Pass Near Banning
Effective: Aug 20 7:39 pm	Expired: Aug 21 6:15 am	Duration: 10 hrs 36 mins
Areas affected: Coachella Valley; San Diego County Deserts; San Gorgonio Pass Near Banning
Effective: Aug 21 1:42 am	Expired: Aug 21 3:30 pm	Duration: 13 hrs 48 mins
Areas affected: Coachella Valley; San Diego County Deserts; San Gorgonio Pass Near Banning
Effective: Aug 21 12:23 pm	Expired: Aug 21 10:00 pm	Duration: 9 hrs 37 mins
Areas affected: Coachella Valley; San Diego County Deserts; San Gorgonio Pass Near Banning
Effective: Aug 21 12:58 pm	Expired: Aug 21 9:00 pm	Duration: 8 hrs 02 mins

San Gorgonio Pass Near Banning

EXTREME HEAT WARNING (4 updates)
Areas affected: Coachella Valley; San Diego County Deserts; San Gorgonio Pass Near Banning
Effective: Aug 20 7:39 pm	Expired: Aug 21 6:15 am	Duration: 10 hrs 36 mins
Areas affected: Coachella Valley; San Diego County Deserts; San Gorgonio Pass Near Banning
Effective: Aug 21 1:42 am	Expired: Aug 21 3:30 pm	Duration: 13 hrs 48 mins
Areas affected: Coachella Valley; San Diego County Deserts; San Gorgonio Pass Near Banning
Effective: Aug 21 12:23 pm	Expired: Aug 21 10:00 pm	Duration: 9 hrs 37 mins
Areas affected: Coachella Valley; San Diego County Deserts; San Gorgonio Pass Near Banning
Effective: Aug 21 12:58 pm	Expired: Aug 21 9:00 pm	Duration: 8 hrs 02 mins

San Diego County Deserts

EXTREME HEAT WARNING (4 updates)
Areas affected: Coachella Valley; San Diego County Deserts; San Gorgonio Pass Near Banning
Effective: Aug 20 7:39 pm	Expired: Aug 21 6:15 am	Duration: 10 hrs 36 mins
Areas affected: Coachella Valley; San Diego County Deserts; San Gorgonio Pass Near Banning
Effective: Aug 21 1:42 am	Expired: Aug 21 3:30 pm	Duration: 13 hrs 48 mins
Areas affected: Coachella Valley; San Diego County Deserts; San Gorgonio Pass Near Banning
Effective: Aug 21 12:23 pm	Expired: Aug 21 10:00 pm	Duration: 9 hrs 37 mins
Areas affected: Coachella Valley; San Diego County Deserts; San Gorgonio Pass Near Banning
Effective: Aug 21 12:58 pm	Expired: Aug 21 9:00 pm	Duration: 8 hrs 02 mins

Morongo Basin

EXTREME HEAT WARNING (3 updates)
Areas affected: Lake Havasu and Fort Mohave; Lake Mead - AZ side; Lake Mohave - AZ side; Hualapai Mountains; Northwest Deserts; Death Valley National Park; Eastern Mojave Desert, Including the Mojave National Preserve; Morongo Basin; Cadiz Basin; San Bernardino County-Upper Colorado River Valley; Northeast Clark County; Western Clark and Southern Nye County; Las Vegas Valley; Southern Clark County; Lake Mead - NV side; Lake Mohave - NV side
Effective: Aug 20 4:57 am	Expired: Aug 21 5:00 am	Duration: 1 day 0 hrs 03 mins
Areas affected: Hualapai Mountains; Eastern Mojave Desert, Including the Mojave National Preserve; Morongo Basin; Cadiz Basin; Northeast Clark County; Western Clark and Southern Nye County; Southern Clark County
Effective: Aug 21 3:55 am	Expired: Aug 21 8:00 pm	Duration: 16 hrs 05 mins
Areas affected: Hualapai Mountains; Eastern Mojave Desert, Including the Mojave National Preserve; Morongo Basin; Cadiz Basin; Northeast Clark County; Western Clark and Southern Nye County; Southern Clark County
Effective: Aug 21 4:05 am	Expired: Aug 21 8:00 pm	Duration: 15 hrs 55 mins

Imperial County

EXTREME HEAT WARNING (2 updates)
Areas affected: Parker Valley; Kofa; Yuma; Central La Paz; Southeast Yuma County; Gila River Valley; Imperial County Southwest; Imperial County Southeast; Imperial County West; Imperial Valley; Palo Verde Valley; Chuckwalla Valley
Effective: Aug 20 11:06 pm	Expired: Aug 21 3:00 pm	Duration: 15 hrs 54 mins
Areas affected: Parker Valley; Kofa; Yuma; Central La Paz; Southeast Yuma County; Gila River Valley; Imperial County Southwest; Imperial County Southeast; Imperial County West; Imperial Valley; Palo Verde Valley; Chuckwalla Valley
Effective: Aug 21 12:15 pm	Expired: Aug 22 3:00 am	Duration: 14 hrs 45 mins

Riverside County Mountains

HEAT ADVISORY (2 updates)
Areas affected: San Bernardino and Riverside County Valleys-The Inland Empire; San Diego County Inland Valleys; Riverside County Mountains; Santa Ana Mountains and Foothills; San Diego County Mountains; Orange County Inland
Effective: Aug 21 12:23 pm	Expired: Aug 21 10:00 pm	Duration: 9 hrs 37 mins
Areas affected: San Bernardino and Riverside County Valleys-The Inland Empire; San Diego County Inland Valleys; Riverside County Mountains; Santa Ana Mountains and Foothills; San Diego County Mountains; Orange County Inland
Effective: Aug 21 12:58 pm	Expired: Aug 21 9:00 pm	Duration: 8 hrs 02 mins

San Bernardino County Mountains

HEAT ADVISORY (2 updates)
Areas affected: San Bernardino County Mountains; Apple and Lucerne Valleys
Effective: Aug 21 12:23 pm	Expired: Aug 21 10:00 pm	Duration: 9 hrs 37 mins
Areas affected: San Bernardino County Mountains
Effective: Aug 21 12:58 pm	Expired: Aug 21 9:00 pm	Duration: 8 hrs 02 mins