Weather Alert in Montana
Cold Weather Advisory issued February 18 at 11:26PM MST until February 19 at 12:00PM MST by NWS Great Falls MT
AREAS AFFECTED: Hill County; Northern Blaine County; Southern Rocky Mountain Front; Southern High Plains; Eastern Pondera and Eastern Teton; Western and Central Chouteau County; Bears Paw Mountains and Southern Blaine; Cascade County below 5000ft; Upper Blackfoot and MacDonald Pass; Gates of the Mountains
DESCRIPTION: * WHAT...Very cold wind chills as low as 35 below. * WHERE...Southern Rocky Mountain Front and adjacent foothills and plains, Eastern Pondera and Eastern Teton Counties, Hill County, Northern Blaine County, Western and Central Chouteau County, Bears Paw Mountains and Southern Blaine, Cascade County below 5000ft, Upper Blackfoot and MacDonald Pass, and Gates of the Mountains. * WHEN...Until noon MST Thursday. * IMPACTS...The dangerously cold wind chills as low as 35 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 Altocumulus Clouds?
Home - Education - Cloud Types - Altocumulus Clouds
Next Topic: Altostratus Clouds
Similar to cirrocumulus clouds, altocumulus clouds are
characterized by cloud patches. They are distinguished by larger cloudlets
than cirrocumulus clouds but are still smaller than stratocumulus clouds.
Altocumulus clouds most commonly form in middle altitudes (between 2 and 5 km)
and may resemble, at times, the shape of a flying saucer.
These uncommon formations, called altocumulus lenticularis, are created by uplift
in the atmosphere and are most often seen in close proximity to mountains.
Next Topic: Altostratus Clouds
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
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