GLOBALINCIDENTTRACKER
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Complete archive

Heat Wave · United States 335

Every incident we have ever recorded — searchable and filterable. Each record has its own detailed page with location, severity, source and safety guidance.

IncidentTypeCountrySeverityDate (UTC)Source
Extreme Heat Watch — Clinton; Washington; Randolph; Madison; St. Clair; Monroe; St. Charles; St. Louis; St. Louis City Heat Wave United States Severe 2026-08-30 17:27 NWS
Extreme Heat Warning — Coachella Valley; San Diego County Deserts; San Gorgonio Pass Near Banning Heat Wave United States Severe 2026-08-28 12:03 NWS
Extreme Heat Warning — San Diego County Mountains Heat Wave United States Severe 2026-08-28 12:03 NWS
Extreme Heat Warning — Apple and Lucerne Valleys Heat Wave United States Severe 2026-08-28 12:03 NWS
Extreme Heat Warning — Santa Ana Mountains and Foothills Heat Wave United States Severe 2026-08-28 12:03 NWS
Extreme Heat Warning — San Bernardino and Riverside County Valleys-The Inland Empire Heat Wave United States Severe 2026-08-28 12:03 NWS
Extreme Heat Warning — Orange County Inland Heat Wave United States Severe 2026-08-28 12:03 NWS
Extreme Heat Warning — Western Pima County Including Ajo/Organ Pipe Cactus National Monument; Tohono O'odham Nation including Sells; Tucson Met Heat Wave United States Severe 2026-08-28 11:43 NWS
Extreme Heat Warning — Upper Santa Cruz River and Altar Valleys including Nogales; Upper San Pedro River Valley including Sierra Vista/Benson; Heat Wave United States Severe 2026-08-28 11:43 NWS
Extreme Heat Warning — Lake Havasu and Fort Mohave; Lake Mead - AZ side; Lake Mohave - AZ side; Hualapai Mountains; Northwest Deserts; Death Va Heat Wave United States Severe 2026-08-28 11:22 NWS
Extreme Heat Warning — Tonto Basin; Dripping Springs; Globe/Miami Heat Wave United States Severe 2026-08-28 07:22 NWS
Extreme Heat Warning — Aguila Valley; Tonopah Desert; Gila Bend; Cave Creek/New River; New River Mesa; Rio Verde/Salt River; Fountain Hills/Eas Heat Wave United States Severe 2026-08-28 07:22 NWS
Extreme Heat Warning — Northwest Valley; Buckeye/Avondale; Deer Valley; Central Phoenix; North Phoenix/Glendale; Scottsdale/Paradise Valley; Ea Heat Wave United States Severe 2026-08-28 07:22 NWS
Extreme Heat Warning — Parker Valley; Kofa; Yuma; Central La Paz; Southeast Yuma County; Gila River Valley; Imperial County Southwest; Imperial Heat Wave United States Severe 2026-08-28 07:22 NWS
Extreme Heat Warning — Joshua Tree NP East; Salton Sea; Chuckwalla Mountains; Chiriaco Summit Heat Wave United States Severe 2026-08-28 07:22 NWS
Extreme Heat Warning — San Carlos Heat Wave United States Severe 2026-08-28 07:22 NWS
Extreme Heat Warning — Catalina and Santa Barbara Islands; Santa Barbara County Southeastern Coast; Ventura County Beaches; Ventura County Inla Heat Wave United States Severe 2026-08-28 05:30 NWS
Extreme Heat Warning — Cuyama Valley; Santa Clarita Valley; Santa Barbara County Interior Mountains; Lake Casitas; Ojai Valley; Central Ventura Heat Wave United States Severe 2026-08-28 05:30 NWS
Extreme Heat Warning — Western Pima County Including Ajo/Organ Pipe Cactus National Monument; Tohono O'odham Nation including Sells; Tucson Met Heat Wave United States Severe 2026-08-26 19:04 NWS
Extreme Heat Warning — Upper Santa Cruz River and Altar Valleys including Nogales; Upper San Pedro River Valley including Sierra Vista/Benson; Heat Wave United States Severe 2026-08-26 19:04 NWS
Extreme Heat Warning — Orange County Inland Heat Wave United States Severe 2026-08-26 19:00 NWS
Extreme Heat Warning — Apple and Lucerne Valleys Heat Wave United States Severe 2026-08-26 19:00 NWS
Extreme Heat Warning — Coachella Valley; San Diego County Deserts; San Gorgonio Pass Near Banning Heat Wave United States Severe 2026-08-26 19:00 NWS
Extreme Heat Warning — San Diego County Mountains Heat Wave United States Severe 2026-08-26 19:00 NWS
Extreme Heat Warning — San Bernardino and Riverside County Valleys-The Inland Empire Heat Wave United States Severe 2026-08-26 19:00 NWS
Extreme Heat Warning — Santa Ana Mountains and Foothills Heat Wave United States Severe 2026-08-26 19:00 NWS
Extreme Heat Warning — Indian Wells Valley; Mojave Desert Slopes; Mojave Desert Heat Wave United States Severe 2026-08-26 18:41 NWS
Extreme Heat Warning — San Carlos Heat Wave United States Severe 2026-08-26 18:24 NWS
Extreme Heat Warning — Joshua Tree NP East; Salton Sea; Chuckwalla Mountains; Chiriaco Summit Heat Wave United States Severe 2026-08-26 18:24 NWS
Extreme Heat Warning — Tonto Basin; Dripping Springs; Globe/Miami Heat Wave United States Severe 2026-08-26 18:24 NWS