Weather Alerts for Idaho
1. Freeze Watch for: Arco/Mud Lake Desert
2. Freeze Watch for: Lower Treasure Valley; Upper Treasure Valley; Western Magic Valley; Oregon Lower Treasure Valley
3. Freeze Watch for: Shoshone/Lava Beds; Upper Snake River Plain; Lower Snake River Plain; Eastern Magic Valley
4. Wind Advisory for: Arco/Mud Lake Desert
5. Wind Advisory for: Beaverhead/Lemhi Highlands
6. Wind Advisory for: Southwest Highlands; Southern Twin Falls County; Harney County; Malheur County
7. Winter Weather Advisory for: Bear River Range; Centennial Mountains/Island Park
8. Winter Weather Advisory for: Central Panhandle Mountains
9. Winter Weather Advisory for: Frank Church Wilderness; Sawtooth/Stanley Basin; Sun Valley Region; Big Lost Highlands/Copper Basin
10. Winter Weather Advisory for: Northern Clearwater Mountains; Southern Clearwater Mountains
11. Winter Weather Advisory for: Western Lemhi County; Eastern Lemhi County
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Current U.S. National Radar--Current
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North America Water Vapor (Moisture)
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Weather Topic: What is Graupel?
Home - Education - Precipitation - Graupel
Next Topic: Hail
Graupel is a form of precipitation that is created by atmospheric conditions
which cause supercooled water droplets to contact snow crystals and freeze to
their surface.
Sometimes known as soft hail or snow pellets, graupel is delicate and easily
destroyed by touch. Whereas hail usually falls during severe weather, graupel
doesn't require such conditions to form, and can form in mild precipitation
similar to situations which produce snowfall.
Next Topic: Hail
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
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