Weather Alerts for Montana
1. Avalanche Warning for: Absaroka/Beartooth Mountains
2. Avalanche Warning for: Bitterroot/Sapphire Mountains; Potomac/Seeley Lake Region
3. Avalanche Warning for: Kootenai/Cabinet Region
4. Avalanche Warning for: Kootenai/Cabinet Region; West Glacier Region
5. High Wind Warning for: Cascade County below 5000ft; Judith Basin County and Judith Gap; Upper Blackfoot and MacDonald Pass; Gates of the Mountains; Little Belt and Highwood Mountains; Helena Valley; Big Belt, Bridger and Castle Mountains
6. High Wind Warning for: East Glacier Park Region; Northern High Plains; Southern Rocky Mountain Front; Southern High Plains
7. High Wind Warning for: Eastern Glacier, Western Toole, and Central Pondera
8. High Wind Warning for: Meagher County Valleys; Elkhorn and Boulder Mountains; Canyon Ferry Area; Missouri Headwaters; Madison River Valley; Gallatin Valley; Beaverhead and Western Madison below 6000ft
9. High Wind Warning for: Northern Stillwater; Golden Valley; Judith Gap; Northern Sweet Grass; Melville Foothills; Southern Wheatland
10. High Wind Watch for: Cascade County below 5000ft; Judith Basin County and Judith Gap; Upper Blackfoot and MacDonald Pass; Gates of the Mountains; Little Belt and Highwood Mountains; Helena Valley; Big Belt, Bridger and Castle Mountains
11. High Wind Watch for: Central and Southeast Phillips; Northern Phillips; Southwest Phillips
12. High Wind Watch for: East Glacier Park Region; Northern High Plains; Southern Rocky Mountain Front; Southern High Plains
13. High Wind Watch for: Eastern Glacier, Western Toole, and Central Pondera
14. High Wind Watch for: Eastern Toole and Liberty; Hill County
15. High Wind Watch for: Northern Blaine County; Western and Central Chouteau County; Bears Paw Mountains and Southern Blaine
16. Wind Advisory for: Livingston Area; Beartooth Foothills
17. Winter Storm Warning for: Absaroka/Beartooth Mountains
18. Winter Storm Warning for: Crazy Mountains
19. Winter Weather Advisory for: Pryor/Northern Bighorn Mountains; Northeast Bighorn Mountains
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Weather Topic: What are Shelf Clouds?
Home - Education - Cloud Types - Shelf Clouds
Next Topic: Sleet
A shelf cloud is similar to a wall cloud, but forms at the front
of a storm cloud, instead of at the rear, where wall clouds form.
A shelf cloud is caused by a series of events set into motion by the advancing
storm; first, cool air settles along the ground where precipitation has just fallen.
As the cool air is brought in, the warmer air is displaced, and rises above it,
because it is less dense. When the warmer air reaches the bottom of the storm cloud,
it begins to cool again, and the resulting condensation is a visible shelf cloud.
Next Topic: Sleet
Weather Topic: What is Snow?
Home - Education - Precipitation - Snow
Next Topic: Stratocumulus Clouds
Snow is precipitation taking the form of ice crystals. Each ice crystal, or snowflake,
has unique characteristics, but all of them grow in a hexagonal structure.
Snowfall can last for sustained periods of time and result in significant buildup
of snow on the ground.
On the earth's surface, snow starts out light and powdery, but as it begins to melt
it tends to become more granular, producing small bits of ice which have the consistency of
sand. After several cycles of melting and freezing, snow can become very dense
and ice-like, commonly known as snow pack.
Next Topic: Stratocumulus Clouds
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