Billings, MT

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NRCS May Water Supply Outlook

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Last Map Update: Wed, May 13, 2026 at 4:08:23 pm MDT

Watches, Warnings & Advisories

National Weather Service Great Falls, MT

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National Weather Service Western and Central Wyoming

Severe Thunderstorm Warning

Severe Weather Statement

High Wind Warning

Severe Thunderstorm Watch

Red Flag Warning

Winter Weather Advisory

Wind Advisory

Fire Weather Watch

Special Weather Statement

Hazardous Weather Outlook

Hydrologic Outlook

Severe Thunderstorm watch 199

Severe Thunderstorm Watch 201

Thunderstorm Threat Today

Strong Winds

Stream Rises this Week

A Severe Thunderstorm Watch is in effect through 9pm.

A Severe thunderstorm watch is in effect for portions of Montana through 11pm.

Isolated to scattered showers with isolated thunderstorms are likely to produce strong wind gusts today.

A period of strong winds will follow a frontal passage this evening. Gusts 50-70 mph are possible across south central Montana tonight through Thursday.

Warm temperatures will melt mountain snowpack bringing rises on areas streams and rivers this week. Flooding is not anticipated but significantly higher flows are expected.