Arizona Severe Extreme Heat Watch | Effective 08/13/2026 11:19

Headline: 
Extreme Heat Watch issued August 13 at 11:19AM MST until August 19 at 8:00PM MST by NWS Tucson AZ
Event: 
Extreme Heat Watch
Urgency: 
Future
Effective: 
August 13, 2026 - 11:19am
Expires: 
August 14, 2026 - 5:00am
Description: 
* WHAT...Dangerously hot conditions with temperatures up to 105 to 108. Major to Extreme HeatRisk is expected. * WHERE...South Central Pinal County, Southeast Pinal County, Tohono O'odham Nation, Tucson Metro Area, Upper Gila River Valley, and Western Pima County. * WHEN...From Monday morning through Wednesday evening. * IMPACTS...Heat related illnesses increase significantly during extreme heat events.
Instruction: 
Take extra precautions if you work or spend time outside. When possible, reschedule strenuous activities to early morning or evening. Know the signs and symptoms of heat exhaustion and heat stroke. Wear lightweight and loose fitting clothing when possible and drink plenty of water. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1.
Area Description: 
Western Pima County Including Ajo/Organ Pipe Cactus National Monument; Tohono O'odham Nation including Sells; Tucson Metro Area including Tucson/Green Valley/Marana/Vail; South Central Pinal County including Eloy/Picacho Peak State Park; Southeast Pinal County including Kearny/Mammoth/Oracle; Upper Gila River and Aravaipa Valleys including Clifton/Safford
Forcast Office: 
NWS Tucson AZ
Sender: 
w-nws.webmaster@noaa.gov