Weather Alert in Montana

Recent Locations: Sand Coulee, MT Greenwood Lake, NY Temple City, CA

Current Alerts for Sand Coulee, MT: Cold Weather Advisory

Avalanche Warning issued February 17 at 6:24AM 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... 07:00 MST Tue Feb 17 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...Heavy snowfall rates and wind-drifted snow will create very dangerous avalanche conditions. * WHERE...Slopes above 5000 feet in the Whitefish, Swan, and Flathead Ranges, and the Lake McDonald and Marias Pass areas of Glacier National Park</p> * WHEN...In effect from Tue 07:00 MST to Wed 06:00 MST. * IMPACTS...Natural large to very large slab avalanches are likely. Human triggered avalanches are very likely. * PRECAUTIONARY / PREPAREDNESS ACTIONS...Very dangerous avalanche conditions. Travel in avalanche terrain is not recommended. Avalanches may run long distances and can run into mature forests, valley floors, or flat terrain. 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?

Home - Education - Cloud Types - Cumulonimbus Clouds

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.

Next Topic: Evaporation