Arizona, California Severe Extreme Heat Warning | Effective 10/07/2026 23:52

Headline: 
Extreme Heat Warning issued October 7 at 11:52PM MST until October 8 at 8:00PM MST by NWS Phoenix AZ
Event: 
Extreme Heat Warning
Urgency: 
Expected
Effective: 
October 7, 2026 - 11:52pm
Expires: 
October 8, 2026 - 2:00pm
Description: 
* WHAT...Dangerously hot conditions. Afternoon temperatures 103 to 106 expected. Major Heat Risk. Overexposure can cause heat cramps and heat exhaustion to develop and, without intervention, can lead to heat stroke. * WHERE...In Arizona, Gila River Valley and Parker Valley. In California, Chuckwalla Valley and Palo Verde Valley. * WHEN...From 10 AM MST /10 AM PDT/ to 8 PM MST /8 PM PDT/ Thursday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events.
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; Gila River Valley; Palo Verde Valley; Chuckwalla Valley
Forcast Office: 
NWS Phoenix AZ
Sender: 
w-nws.webmaster@noaa.gov