Winter Weather Advisory issued October 11 at 10:29AM MDT until October 12 at 6:00AM MDT by NWS Great Falls MT
Official severe-weather alerts, warning areas, and disaster updates.
expired · active · official-source
* WHAT...Snow. Additional snow accumulations between 2 and 4 inches across lower elevations, with up to 7 inches in the mountains. Winds gusting as high as 35 mph. * WHERE...Canyon Ferry Area, Beaverhead and Western Madison below 6000ft, Gallatin and Madison County Mountains and Centennial Mountains, Northwest Beaverhead County, and Ruby Mountains and Southern Beaverhead Mountains. * WHEN...Until 6 AM MDT Monday. * IMPACTS...Travel could be difficult. Gusty winds combined with the wet and heavy nature of the snow could bring down tree branches. Isolated power outages are possible. * ADDITIONAL DETAILS...Snowfall amounts will vary drastically from grassy surfaces to roadways, most notably at lower elevations, with accumulations on non-grassy surfaces being confined mainly to between the evening through late morning hours. Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1.
- Event time
- Source last updated
- Current version retrieved
- Provider
- NWS — active weather alerts (Storm)
- Location
- MT, US
- Severity
- Moderate
- area
- Canyon Ferry Area; Northwest Beaverhead County; Beaverhead and Western Madison below 6000ft; Ruby Mountains and Southern Beaverhead Mountains; Gallatin and Madison County Mountains and Centennial Mountains
- event
- Winter Weather Advisory
- onset
- 2026-10-11T10:29:00-06:00
- states
- ["MT"]
- urgency
- Expected
- certainty
- Likely
- effective
- 2026-10-11T10:29:00-06:00
- message id
- urn:oid:2.49.0.1.840.0.a4d4a9222f663d05f8aa360416294ff95b266b53.009.1
- references
- ["urn:oid:2.49.0.1.840.0.02af72eff6eb04202cb1e430105d169874b37a5f.007.1"]
- instruction
- Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1.
- message type
- Update
- location basis
- Approximate: centers of the NWS zones listed in the alert
- freshness minutes
- 60
Source use policy · US government work (17 U.S.C. 105)
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Update history (3 recent revisions)
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