Arizona, California Severe Extreme Heat Warning | Effective 08/02/2026 12:12

Headline: 
Extreme Heat Warning issued August 2 at 12:12PM MST until August 4 at 8:00PM MST by NWS Phoenix AZ
Event: 
Extreme Heat Warning
Urgency: 
Expected
Effective: 
August 2, 2026 - 12:12pm
Expires: 
August 3, 2026 - 5:00am
Description: 
* WHAT...Dangerously hot and humid conditions. Afternoon temperatures 110 to 118. Major to Extreme Heat Risk. * WHERE...Yuma, La Paz, and Eastern Riverside Counties, including the Colorado River Valley. * WHEN...Until 8 PM MST /8 PM PDT/ Tuesday. * IMPACTS...Increase in heat related illnesses, including heat cramps, heat exhaustion, and heat stroke. Heat stroke can lead to death.
Instruction: 
An Extreme Heat Warning means that a period of very hot temperatures, even by local standards, will occur. Actions should be taken to lessen the impact of the extreme heat. 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. Public cooling shelters are available in some areas. Consult county officials for more details.
Area Description: 
Parker Valley; Kofa; Yuma; Central La Paz; Southeast Yuma County; Gila River Valley; Palo Verde Valley; Chuckwalla Valley
Forcast Office: 
NWS Phoenix AZ
Sender: 
w-nws.webmaster@noaa.gov