Extreme Heat Warning Issued for Phoenix Area Until September 11
The National Weather Service (NWS) in Phoenix, Arizona, has issued an Extreme Heat Warning effective from September 9, 2026, at 4:22 AM MST until September 11, 2026, at 8:00 PM MST. The warning highlights dangerously high temperatures expected to impact the region, including the Coachella Valley. Residents are advised to take precautions to avoid heat-related illnesses, as the extreme heat poses significant health risks. Public cooling shelters have been made available in some areas to provide relief from the heat. The Occupational Safety and Health Administration (OSHA) recommends frequent rest breaks in shaded or air-conditioned environments for those working outdoors. Heat stroke is a serious medical emergency, and immediate action should be taken if symptoms occur.