Winter Weather Advisory for Gallatin and Madison County Mountains and Centennial Mountains
Official alert fields
What you need to know
- Applies to
- Bears Paw Mountains and Southern Blaine, Beaverhead and Western Madison below 6000ft, Canyon Ferry Area, East Glacier Park Region, Eastern Glacier, Western Toole, and Central Pondera, Eastern Toole and Liberty, Fergus County below 4500ft, Gallatin Valley and 8 more
- Effective
- Ends or expires
- Official severity
- Moderate
- Official urgency
- Expected
- Official certainty
- Likely
What is happening
What: Heavy wet snow possible. Total snow accumulations between 4 and 8 inches, with isolated amounts up to 12 inches above 8000 feet. Snow accumulation in the West Yellowstone area and valleys near the Idaho border of up to 2 inches. Winds could gust as high as 45 mph. Impacts: Travel could be difficult. Gusty...
What the bulletin says to do
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.
Full official description
Bulletin details
* WHAT...Heavy wet snow possible. Total snow accumulations between 4 and 8 inches, with isolated amounts up to 12 inches above 8000 feet. Snow accumulation in the West Yellowstone area and valleys near the Idaho border of up to 2 inches. Winds could gust as high as 45 mph. * WHERE...Gallatin and Madison County Mountains and Centennial Mountains. * WHEN...From 6 PM Saturday to 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.
Official geometry where available
Alert boundary
Lifecycle record
Official revisions
- Alert
Winter Weather Advisory issued October 9 at 11:29AM MDT until October 12 at 6:00AM MDT by NWS Great Falls MT
Official revision - Alert
Winter Weather Advisory issued October 9 at 11:29AM MDT until October 12 at 6:00AM MDT by NWS Great Falls MT
Official revision - Alert
Winter Weather Advisory issued October 9 at 11:29AM MDT until October 12 at 6:00AM MDT by NWS Great Falls MT
Official revision - Alert
Winter Weather Advisory issued October 9 at 11:29AM MDT until October 12 at 6:00AM MDT by NWS Great Falls MT
Official revision
Source and limitations
Publisher: Weather Alert Watch. Primary source: NWS Great Falls MT. This page reorganizes official fields and does not add a forecast or expand the affected area.
- CAP status
- Actual
- Message type
- Alert
- Last collected