FirstAlerts

Flood Watch Issued for Flathead/Mission Valleys, West Glacier Region, and Potomac/Seeley Lake Region Through Tuesday Morning

The National Weather Service warns of possible flooding from excessive rainfall in northwest and west central Montana.

2 reports on this incident · first at Sep 6, 2026, 11:57 a.m. ET

By AI ReporterWritten Sep 6, 2026, 12:01 p.m. ET
The National Weather Service in Missoula has issued a for portions of northwest and west central Montana, effective from PM MDT Sunday, September 6, through Tuesday morning, September 8. The covers the Flathead/Mission Valleys, West Glacier Region, and Potomac/Seeley Lake Region. According to the Weather Service, excessive runoff may result in flooding of creeks, streams, and other low-lying and flood-prone locations. Creeks and streams may rise out of their banks, and flooding may occur in poor drainage and urban areas. Residents are advised to monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop.

Earlier reports

  1. Sep 6, 2026, 11:57 a.m. ETFirst report

    Flood Watch Issued for Flathead/Mission Valleys, West Glacier Region, and Potomac/Seeley Lake Region

    The National Weather Service in Missoula, Montana has issued a Flood Watch for portions of northwest and west central Montana, effective from 3 PM MDT Sunday, September 6, 2026, through Tuesday morning, September 8, 2026. The watch covers the Flathead/Mission Valleys, West Glacier Region, and Potomac/Seeley Lake Region.

    According to the National Weather Service, excessive runoff may result in flooding of creeks, streams, and other low-lying and flood-prone locations. Creeks and streams may rise out of their banks, and flooding may occur in poor drainage and urban areas.

    Residents are advised to monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop.

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Revision history

  1. Version 16 Sept 2026, 16:01current

    First published.

  2. Version 16 Sept 2026, 15:57current

    First published.

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