Weather Alerts for Montana
1. Lake Wind Advisory for: Central and Southeast Phillips; Central and Southern Valley; Petroleum; Garfield; McCone
2. Winter Storm Warning for: Little Belt and Highwood Mountains; Gallatin and Madison County Mountains and Centennial Mountains
3. Winter Storm Watch for: Absaroka/Beartooth Mountains; Crazy Mountains
4. Winter Storm Watch for: Bitterroot/Sapphire Mountains; Butte/Blackfoot Region; Potomac/Seeley Lake Region
5. Winter Storm Watch for: Custer; Fallon; Powder River; Carter
6. Winter Storm Watch for: Dawson; Prairie; Wibaux
7. Winter Storm Watch for: Northern Big Horn; Southwestern Yellowstone
8. Winter Storm Watch for: Pryor/Northern Bighorn Mountains; Northeast Bighorn Mountains
9. Winter Storm Watch for: Southern Big Horn; Bighorn Canyon
10. Winter Storm Watch for: Southern Rosebud
11. Winter Storm Watch for: Treasure; Northern Rosebud; Northeastern Yellowstone
12. Winter Weather Advisory for: Big Belt, Bridger and Castle Mountains
13. Winter Weather Advisory for: Cascade County below 5000ft; Judith Basin County and Judith Gap; Fergus County below 4500ft; Snowy and Judith Mountains
14. Winter Weather Advisory for: East Glacier Park Region
15. Winter Weather Advisory for: Livingston Area; Northern Sweet Grass; Melville Foothills
16. Winter Weather Advisory for: Northern Big Horn; Southwestern Yellowstone
17. Winter Weather Advisory for: Northern Stillwater; Northern Carbon
18. Winter Weather Advisory for: Red Lodge Foothills; Beartooth Foothills
19. Winter Weather Advisory for: Southeastern Carbon
20. Winter Weather Advisory for: Southern Big Horn; Bighorn Canyon
21. Winter Weather Advisory for: Southern Rocky Mountain Front; Upper Blackfoot and MacDonald Pass; Elkhorn and Boulder Mountains; Northwest Beaverhead County
22. Winter Weather Advisory for: Southern Rosebud
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North America Water Vapor (Moisture)
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Weather Topic: What is Sleet?
Home - Education - Precipitation - Sleet
Next Topic: Snow
Sleet is a form of precipitation in which small ice pellets are the primary
components. These ice pellets are smaller and more translucent than hailstones,
and harder than graupel. Sleet is caused by specific atmospheric conditions and
therefore typically doesn't last for extended periods of time.
The condition which leads to sleet formation requires a warmer body of air to be
wedged in between two sub-freezing bodies of air. When snow falls through a warmer
layer of air it melts, and as it falls through the next sub-freezing body of air
it freezes again, forming ice pellets known as sleet. In some cases, water
droplets don't have time to freeze before reaching the surface and the result is
freezing rain.
Next Topic: Snow
Weather Topic: What are Stratocumulus Clouds?
Home - Education - Cloud Types - Stratocumulus Clouds
Next Topic: Stratus Clouds
Stratocumulus clouds are similar to altocumulus clouds in their
fluffy appearance, but have a slightly darker shade due to their additional mass.
A good way to distinguish the two cloud types is to hold your hand out and measure
the size of an individual cloud; if it is the size of your thumb it is generally
an altocumulus cloud, if it is the size of your hand it is generally a
stratocumulus cloud.
It is uncommon for stratocumulus clouds to produce precipitation, but if they do
it is usually a light rain or snow.
Next Topic: Stratus Clouds
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