Weather Alert in Montana
Extreme Cold Warning issued February 17 at 11:25PM MST until February 18 at 12:00PM MST by NWS Great Falls MT
AREAS AFFECTED: East Glacier Park Region; Northern High Plains; Eastern Glacier, Western Toole, and Central Pondera; Eastern Toole and Liberty
DESCRIPTION: * WHAT...For the Extreme Cold Warning, dangerously cold wind chills as low as 40 below. For the Cold Weather Advisory, very cold wind chills as low as 30 below expected. * WHERE...The Montana Hi-Line adjacent to the Rocky Mountain Front, and Eastern Toole and Liberty Counties. * WHEN...For the Extreme Cold Warning, until noon MST Wednesday. For the Cold Weather Advisory, from noon Wednesday to noon MST Thursday. * IMPACTS...The dangerously cold wind chills as low as 40 below zero could cause frostbite on exposed skin in as little as 10 minutes.
INSTRUCTION: Dress in layers including a hat, face mask, and gloves if you must go outside.
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Weather Topic: What are Cirrocumulus Clouds?
Home - Education - Cloud Types - Cirrocumulus Clouds
Next Topic: Cirrostratus Clouds
Cirrocumulus clouds form at high altitudes (usually around 5 km)
and have distinguishing characteristics displayed in a fine layer of
small cloud patches. These small cloud patches are sometimes referred to as
"cloudlets" in relation to the whole cloud formation.
Cirrocumulus clouds are formed from ice crystals and water droplets. Often, the
water droplets in the cloud freeze into ice crystals and the cloud becomes a
cirrostratus cloud. Because of this common occurrence, cirrocumulus cloud
formations generally pass rapidly.
Next Topic: Cirrostratus Clouds
Weather Topic: What are Cirrus Clouds?
Home - Education - Cloud Types - Cirrus Clouds
Next Topic: Condensation
Cirrus clouds are high-level clouds that occur above 20,000 feet
and are composed mainly of ice crystals.
They are thin and wispy in appearance.
What do they indicate?
They are often the first sign of an approaching storm.
Next Topic: Condensation
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