Severe Flood ● Closed
Flood Watch issued September 6 at 11:32AM MDT until September 8 at 12:00PM MDT by NWS Great Falls MT, United States of America
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* WHAT...Flooding caused by excessive rainfall is possible.
* WHERE...A portion of north central Montana, including the following
areas, East Glacier Park Region, Eastern Glacier, Western Toole,
and Central Pondera, Eastern Pondera and Eastern Teton, Eastern
Toole and Liberty, Northern High Plains, Southern High Plains and
Southern Rocky Mountain Front.
* WHEN...From 3 PM MDT this afternoon through Tuesday morning.
* IMPACTS...Excessive runoff may result in minor flooding of creeks,
streams, and other low-lying and flood-prone locations. Creeks and
streams may rise out of their banks. Flooding may occur in poor
drainage areas. Rural gravel and dirt roads can become muddy and
may become difficult to travel. Rock/debris slides are possible in
the mountains.
* ADDITIONAL DETAILS...
- Thunderstorms today will be capable of producing 0.50 to 1 inch
per hour rain rates. Periods of moderate to heavy rainfall will
be possible Monday through Tuesday morning. Widespread 0.75 to
1.5 inches of rain have already fallen along the Rocky Mountain
Front over the past 24 hours. Additional widespread rain
accumulations of 1 to 3 inches are possible along the Rocky
Mountain Front and Sweet Grass Hills with isolated 4 inches
possible along and north of US Highway 2 this afternoon through
Tuesday morning.
- http://www.weather.gov/safety/flood
Measurements
| Coordinates | 39.9645, -100.8105 |
|---|---|
| Region | East Glacier Park Region; Northern High Plains; Eastern Glacier, Western Toole, and Central Pondera; Eastern Toole and Liberty; Southern Rocky Mountain Fro |
| Location Precision | country |
| Issuing Authority | United States of America — us-noaa-nws-en |
| Cap Urgency | Future |
| Cap Certainty | Possible |
| Cap Expires | 2026-09-07T06:15:00-06:00 |
Official source
Warnings courtesy of the issuing national meteorological service, via the WMO Alert Hub.
This is an official warning issued by the authority named above. Follow its instructions and those of your local emergency services.
Severity as published by WMO Alert Hub (national weather services).
View original reportThis event as JSON · API and licence
Source updated 43 days ago (Sep 6, 2026 17:34 UTC) · we last heard from WMO Alert Hub (national weather services) 56 seconds ago
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About this location
The agency did not publish coordinates for this warning. The pin is the centre of the country, not the location of the event — read the area name, not the map, for where it applies.
Area as the agency stated it: East Glacier Park Region; Northern High Plains; Eastern Glacier, Western Toole, and Central Pondera; Eastern Toole and Liberty; Southern Rocky Mountain Fro
Official authorities in United States
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More for United States →What to do
Follow the instructions issued by WMO Alert Hub (national weather services) and your local emergency services. The guidance below is background.
Flood preparation, evacuation decisions, and the dangers of driving or walking through floodwater.
Open Flood Safety Guide →Earlier flood events in United States
Severe and extreme events of the same kind, before this one. Listed for scale, not because they are connected to it.
Nearby & related events
Disclaimer: figures are automatic feeds from the named agencies and may be revised. Do not use this page for life-safety decisions — follow official local emergency services.