Arizona Severe Extreme Heat Watch | Effective 06/21/2026 13:58

Headline: 
Extreme Heat Watch issued June 21 at 1:58PM MST until June 24 at 8:00PM MST by NWS Phoenix AZ
Event: 
Extreme Heat Watch
Urgency: 
Future
Effective: 
June 21, 2026 - 1:58pm
Expires: 
June 22, 2026 - 4:00am
Description: 
* WHAT...Dangerously hot conditions with temperatures up to 110 degrees possible. * WHERE...San Carlos area. * WHEN...From Tuesday morning through Wednesday evening. * IMPACTS...Heat related illnesses increase significantly during extreme heat events.
Instruction: 
An Extreme Heat Watch means that a period of very hot temperatures, even by local standards, may 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. Continue to monitor NWS forecasts, broadcast outlets, and local government for updates.
Area Description: 
San Carlos
Forcast Office: 
NWS Phoenix AZ