Expected

Responsive action SHOULD be taken soon (within next hour)

Extreme Heat Warning Arizona | Effective 03/21/2026 13:39

Public safety alert, emergency alert, and weather alert<br /> Description:<br /> * WHAT...Dangerously hot conditions. Afternoon temperatures 99 to<br /> 106. Overexposure can cause heat cramps and heat exhaustion to<br /> develop and, without intervention, can lead to heat stroke. * WHERE...The Northwest Valley of the Phoenix Metro Area, The East<br /> Valley of the Phoenix Metro Area, Buckeye/Avondale, Deer Valley,<br /> Central Phoenix, North Phoenix/Glendale, Scottsdale/Paradise<br />

Extreme Heat Warning Arizona | Effective 03/21/2026 13:39

Public safety alert, emergency alert, and weather alert<br /> Description:<br /> * WHAT...Dangerously hot conditions. Afternoon temperatures 94 to<br /> 105. Overexposure can cause heat cramps and heat exhaustion to<br /> develop and, without intervention, can lead to heat stroke. * WHERE...Apache Junction/Gold Canyon, Cave Creek/New River,<br /> Dripping Springs, Fountain Hills/East Mesa, New River Mesa, Rio<br /> Verde/Salt River, and Superior. * WHEN...Until 8 PM MST Sunday. * IMPACTS...Heat related illnesses increase significantly during<br />

Extreme Heat Warning Arizona, California | Effective 03/21/2026 13:39

Public safety alert, emergency alert, and weather alert<br /> Description:<br /> * WHAT...Dangerously hot conditions. Afternoon temperatures 94 to<br /> 108. Overexposure can cause heat cramps and heat exhaustion to<br /> develop and, without intervention, can lead to heat stroke. * WHERE...Portions of southwest Arizona and southeast and southern<br /> California. * WHEN...Until 8 PM MST /8 PM PDT/ Sunday. * IMPACTS...Heat related illnesses increase significantly during<br /> extreme heat events. Instruction:<br />

Extreme Heat Warning Arizona | Effective 03/21/2026 13:39

Public safety alert, emergency alert, and weather alert<br /> Description:<br /> * WHAT...Dangerously hot conditions. Afternoon temperatures 97 to<br /> 107. Overexposure can cause heat cramps and heat exhaustion to<br /> develop and, without intervention, can lead to heat stroke. * WHERE...Portions of south central and southwest Arizona. * WHEN...Until 8 PM MST Sunday. * IMPACTS...Heat related illnesses increase significantly during<br /> extreme heat events. Instruction:<br /> To reduce risk during outdoor work, the Occupational Safety and<br />
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