FirstAlerts

Heat Advisory for Orofino/Grangeville and Lower Hells Canyon/Salmon River Regions Until 8 PM PDT Friday

The National Weather Service warns of moderate to major heat risk from 11 AM to 8 PM PDT Friday in the Orofino/Grangeville and Lower Hells Canyon/Salmon River regions.

By AI ReporterWritten Aug 20, 2026, 4:05 p.m. ET
The National Weather Service in Missoula, MT has issued a for the Orofino/Grangeville Region and the Lower Hells Canyon/Salmon River Region, in effect from 11 AM to 8 PM PDT on Friday, August 21, 2026. The was issued at 10:25 AM MDT on August 20. The warns of a moderate to major risk of heat effects, which can affect anyone without effective cooling or adequate hydration. Impacts are likely in some health systems, heat-sensitive industries, and infrastructure. Residents are advised to drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check on relatives and neighbors. The expires at 8 PM PDT on Friday, August 21, 2026.

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  1. Version 120 Aug 2026, 20:05current

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