Extreme Heat Watch issued March 15 at 1:37PM PDT until March 20 at 8:00PM PDT by NWS Las Vegas NV

NWS Active Alerts report on Extreme Heat Watch issued March 15 at 1:37PM PDT until March 20 at 8:00PM PDT by NWS Las Vegas NV.

Developing Major update Updated Mar 15, 2026, 9:00 PM UTC

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What changed

Fresh follow-up from NWS Active Alerts; the story now has 3 reports.

First seen Mar 15, 2026, 8:37 PM UTC Latest source Mar 15, 2026, 9:00 PM UTC

Update 1 1h ago

NWS Active Alerts •published Mar 15, 2026, 9:00 PM UTC •fetched Mar 15, 2026, 9:05 PM UTC

Update 2 2h ago

NWS Active Alerts •published Mar 15, 2026, 8:37 PM UTC •fetched Mar 15, 2026, 8:41 PM UTC