Weather Alert in Minnesota
Frost Advisory issued August 24 at 1:25PM CDT until August 25 at 8:00AM CDT by NWS Duluth MN
AREAS AFFECTED: Koochiching; North St. Louis; Northern Cook/Northern Lake; Central St. Louis
DESCRIPTION: * WHAT...Temperatures as low as 33 will result in frost formation. * WHERE...Koochiching, Central and North St. Louis, and Northern Cook and Lake Counties. This includes the Tribal Lands of the Bois Forte Band, Nett Lake and, Lake Vermilion areas. Other locations including Voyageurs National Park. The entire Boundary Waters is also included. * WHEN...From 2 AM to 8 AM CDT Monday. * IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered.
INSTRUCTION: Take steps now to protect tender plants from the cold.
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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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