Extreme Heat Warning issued October 8 at 11:18PM MST until October 9 at 8:00PM MST by NWS Phoenix AZ

Archived official description

* WHAT...Dangerously hot conditions. Afternoon temperatures 104 to 109. Major Heat Risk. Overexposure can cause heat cramps and heat exhaustion to develop and, without intervention, can lead to heat stroke. * WHERE...Imperial County West and Imperial Valley. * WHEN...Until 8 PM PDT Friday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events.

Instructions in this archived message

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.

How the record changed

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1. baseline · Captured 2026-10-09 17:11:48.776Z

   Extreme Heat Warning issued October 8 at 11:18PM MST until October 9 at 8:00PM MST by NWS Phoenix AZ

   Extreme Heat Warning · Imperial County West; Imperial Valley. Severe; likely; urgency: expected.

   Source issued/updated 2026-10-09T06:18:00.000Z · Source update

   Source for this capture ↗