Extreme Heat Warning Arizona, California | Effective 03/17/2026 00:17
Public safety alert, emergency alert, and weather alert<br />
Description:<br />
* WHAT...Dangerously hot conditions. Major Heat Risk. Overexposure<br />
can cause heat cramps and heat exhaustion to develop and, without<br />
intervention, can lead to heat stroke.
* WHERE...Portions of southwest Arizona and southeast and southern<br />
California.
* WHEN...From 11 AM MST /11 AM PDT/ Wednesday to 8 PM MST /8 PM PDT/<br />
Sunday.
* IMPACTS...Heat related illnesses increase significantly during<br />
extreme heat events.