Extreme Heat Warning Issued for Desert Southwest Through Sunday
The Weather Authority has upgraded the alert to an Extreme Heat Warning for the Desert Southwest, in effect until 8 p.m. Sunday.
3 reports on this incident · first at Aug 21, 2026, 4:45 a.m. ET
Hazard products are revised and cancelled as conditions change. Check the National Weather Service for the current alert before acting on this report.
We last searched for new coverage of this at Aug 21, 2026, 5:08 a.m. ET — checked 2h ago.
Earlier reports
Aug 21, 2026, 4:49 a.m. ET
Extreme Heat Warning for Desert Southwest Through Sunday
The Weather Authority has issued an Extreme Heat Warning for the Desert Southwest, warning of dangerously hot and humid conditions. The warning is in effect until 8 p.m. Sunday, August 23, 2026, as reported by kyma.com.
The warning covers the Desert Southwest region. The Weather Authority did not specify the exact areas affected beyond that region.
Aug 21, 2026, 4:45 a.m. ETFirst report
Extreme Heat Warning Issued for Desert Southwest Through Sunday
An Extreme Heat Warning is in effect for the Desert Southwest, according to a report from kyma.com. The warning, issued by the Weather Authority, warns of dangerously hot and humid conditions. It is set to expire at 8 p.m. local time on Sunday, August 23, 2026.
The warning is part of an ongoing heat and humidity event, with storms still possible, as reported by kyma.com.
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Revision history
- Version 121 Aug 2026, 08:49current
First published.
- Version 121 Aug 2026, 08:45current
First published.
- Version 121 Aug 2026, 08:52current
First published.
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