Weather Alert in Iowa
Winter Weather Advisory issued February 18 at 9:36PM CST until February 20 at 6:00AM CST by NWS Des Moines IA
AREAS AFFECTED: Butler; Bremer; Hardin; Grundy; Black Hawk; Story; Marshall; Tama; Polk; Jasper; Warren; Marion
DESCRIPTION: ...ACCUMULATING SNOWFALL WILL IMPACT TRAVEL FROM LATE THURSDAY INTO FRIDAY... .Precipitation will spread from western into central Iowa on Thursday afternoon and evening. Initially, it may begin as rain or a rain/snow mix before changing to snow. Light to moderate snow accumulations are expected by Friday morning, but a narrow band of heavier snowfall is expected. * WHAT...Snow expected. Total snow accumulations of 2 to 5 inches. * WHERE...Portions of central and east central Iowa. * WHEN...From 6 PM Thursday to 6 AM CST Friday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the Thursday evening and Friday morning commutes.
INSTRUCTION: Slow down and use caution while traveling. For the latest travel conditions, check the Iowa 511 app, www.511ia.org, or dial 511.
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North America Water Vapor (Moisture)
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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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