Severe Thunderstorms in West Texas; Heavy Rainfall in the Southeast U.S.

Scattered strong to severe storms capable of sporadic large hail and severe winds are expected this afternoon and evening across portions of western Texas. Widespread showers and thunderstorms may produce isolated flash flooding across the Ozarks today and the Southeast into next week. Read More >

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Last Map Update: Fri, May 29, 2026 at 11:56:24 am MDT

Watches, Warnings & Advisories

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National Weather Service Great Falls, MT

Flash Flood Watch

Flood Watch

Hydrologic Outlook

Daily Thunderstorm Threat

Heavy Rainfall Expected This Weekend

Expect off-and-on showers and thunderstorms across the Northern Rockies through Friday. Rainfall amounts will vary drastically over short distances. Primary threats include lightning and heavy downpours, a few stronger storms may contain strong outflow winds and hail. Localized flash flooding is possible if heavy rain stalls, with the highest risk localized to steep terrain, recent burn scars, and poor drainage areas.

A period of heavy rain is forecast for Saturday afternoon through Monday, May 30th - June 1st. The heaviest rainfall is anticipated across parts of western Montana. where widespread amounts of 1 to 2 inches are expected, with up to 3 inches possible along the Divide. Minor flooding is possible in urban and flood-prone areas, along with rising levels on streams and rivers. There are also risks for mudslides and debris flows in steep terrain. Plan ahead by avoiding travel in vulnerable areas and preparing by making sure the rain and runoff has somewhere to go.

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Severe Thunderstorms in West Texas; Heavy Rainfall in the Southeast U.S.

NWS Forecast Office Missoula, MT