Strong Storms and Heavy Rainfall Threats; Dangerous Heat for Southern Plains into the Southwest

Thunderstorms, some severe, will impact areas of the Plains into the Midwest today. Rainfall can be locally heavy as well from these storms with isolated instances of flash flooding. Monsoonal flow will enhance rainfall across the Four Corners into the central Rockies today. Meanwhile, summer heat continues for the southern Plains, Southwest into southern California. Read More >

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Last Map Update: Tue, Aug 25, 2026 at 1:14:27 pm MDT

Watches, Warnings & Advisories

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National Weather Service Great Falls, MT

Red Flag Warning

Heat Advisory

Special Weather Statement

Air Quality Alert

Increasing Thunderstorms Tuesday-Thursday

Thunderstorms begin in southwest Montana and Lemhi County on Tuesday afternoon, expand in coverage to much of the Northern Rockies on Wednesday, then focus in western Montana on Thursday. Thunderstorms will be scattered in nature, rather than widespread with gusty outflow winds of 30-50 mph as a primary concern. Lightning may also lead to new fire starts. Storms will likely be a mix of dry/wet storms with wetting rains confined to storm cores.