Weather Alert in Montana

Recent Locations: Big Sky, MT  
Current Alerts for Big Sky, MT: High Wind Warning

Avalanche Warning issued February 24 at 6:14AM MST by NWS Missoula MT

AREAS AFFECTED: Kootenai/Cabinet Region; West Glacier Region

DESCRIPTION: AVWMSO The following message is transmitted at the request of Flathead Avalanche Center Hungry Horse MT. ...AVALANCHE WARNING ISSUED BY THE FLATHEAD AVALANCHE CENTER... 06:00 MST Tue Feb 24 2026 The Flathead Avalanche Center in Hungry Horse has issued a BACKCOUNTRY AVALANCHE WARNING for the following areas: NWS Missoula MT - MTZ001 (MTZ001)...MTZ002 (MTZ002) * WHAT...New and wind-drifted snow have created very dangerous avalanche conditions. * WHERE...Slopes above 5000 feet in the Flathead Range and the Lake McDonald and Marias Pass areas of Glacier National Park. Slopes above 6500 feet in the Swan and Whitefish Ranges. * WHEN...In effect from Tue 06:00 MST to Wed 06:00 MST. * IMPACTS...Natural and human-triggered avalanches are very likely. Avalanches will release on weak layers buried two to four feet deep. These will run long distances, travel into low-angle terrain, and can cover snowmobile and snowshoeing trails and backcountry ski routes. Avalanches may connect across terrain features like ridges, releasing multiple start zones at once. Avalanches can be triggered from long distances away. Smaller slopes, such as roadcuts, may also avalanche, depositing a surprising amount of debris on roads below. * PRECAUTIONARY / PREPAREDNESS ACTIONS...Very dangerous avalanche conditions. Pay close attention to the terrain around you. Avoid traveling on and under steep slopes. Consult http://www.flatheadavalanche.org/ or www.avalanche.org for more detailed information. Similar avalanche danger may exist at locations outside the coverage area of this or any avalanche center.

INSTRUCTION: N/A

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Weather Topic: What are Cumulonimbus Clouds?

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Cumulonimbus Clouds Next Topic: Cumulus Clouds

The final form taken by a growing cumulus cloud is the cumulonimbus cloud, which is very tall and dense. The tower of a cumulonimbus cloud can soar 23 km into the atmosphere, although most commonly they stop growing at an altitude of 6 km.

Even small cumulonimbus clouds appear very large in comparison to other cloud types. They can signal the approach of stormy weather, such as thunderstorms or blizzards.

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Weather Topic: What is Drizzle?

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Drizzle Next Topic: Evaporation

Drizzle is precipitation in the form of water droplets which are smaller than raindrops.

Drizzle is characterized by fine, gently falling droplets and typically does not impact human habitation in a negative way. The exception to this is freezing drizzle, a condition where drizzle freezes immediately upon reaching earth's surface. Freezing drizzle is still less dangerous than freezing rain, but can potentially result in hazardous road conditions.

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