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: Bighorn Canyon; Sheridan Foothills
5. Winter Storm Watch for: Custer; Fallon; Powder River; Carter
6. Winter Storm Watch for: Dawson; Prairie; Wibaux
7. Winter Storm Watch for: Pryor/Northern Bighorn Mountains; Northeast Bighorn Mountains
8. Winter Storm Watch for: Southern Big Horn
9. Winter Storm Watch for: Southern Rosebud
10. Winter Storm Watch for: Treasure; Northern Rosebud; Northern Big Horn; Northeastern Yellowstone; Southwestern Yellowstone
11. Winter Weather Advisory for: Big Belt, Bridger and Castle Mountains
12. Winter Weather Advisory for: Butte/Blackfoot Region
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: Potomac/Seeley Lake Region
16. Winter Weather Advisory for: Southern Rocky Mountain Front; Upper Blackfoot and MacDonald Pass; Elkhorn and Boulder Mountains; Northwest Beaverhead County
17. Winter Weather Advisory for: West Glacier Region
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North America Water Vapor (Moisture)
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Weather Topic: What are Hole Punch Clouds?
Home - Education - Cloud Types - Hole Punch Clouds
Next Topic: Mammatus Clouds
A hole punch cloud is an unusual occurrence when a disk-shaped
hole appears in a cirrostratus, cirrocumulus, or altocumulus cloud.
When part of the cloud forms ice crystals, water droplets in the surrounding area
of the cloud evaporate. The effect of this process produces a large elliptical
gap in the cloud. The hole punch cloud formation is rare, but it is not specific
to any geographic area.
Other names which have been used to describe this phenomena include fallstreak hole,
skypunch, and cloud hole.
Next Topic: Mammatus Clouds
Weather Topic: What are Nimbostratus Clouds?
Home - Education - Cloud Types - Nimbostratus Clouds
Next Topic: Precipitation
A nimbostratus cloud is similar to a stratus cloud in its formless,
smooth appearance. However, a nimbostratus cloud is darker than a stratus cloud,
because it is thicker.
Unlike a stratus cloud, a nimbostratus cloud typically brings with it the threat
of moderate to heavy precipitation. In some cases, the precipitation may evaporate
before reaching the ground, a phenomenon known as virga.
Next Topic: Precipitation
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