Weather Alert in Iowa
Winter Storm Warning issued February 19 at 3:15PM CST until February 20 at 9:00AM CST by NWS La Crosse WI
AREAS AFFECTED: Allamakee; Fayette; Clayton; Crawford; Richland; Grant
DESCRIPTION: ...BAND OF MODERATE TO HEAVY SNOW EXPECTED TONIGHT... .A band of snow develops across northeast Iowa into southwest Wisconsin this evening and lasts through the overnight, departing between sunrise and mid-morning. The snow will be heavy at times with rates exceeding 1" per hour, quickly leading to snow-covered and slippery roads. The heaviest snow is forecast to fall in a relatively narrow band with amounts quickly decreasing on either side of the band. Any small changes to the placement of the snow band could change forecast snow amounts at a given location very quickly. Confidence in heavy amounts is highest in far southwest Wisconsin into Juneau and Adams Counties and adjacent areas of northeast Iowa. Areas to the northwest from Charles City to Tomah may see a few inches of accumulation, but amounts will drop off quickly in some cases within a few miles. * WHAT...Heavy snow expected. Total snow accumulations between 4 and 6 inches. Winds gusting as high as 40 mph. * WHERE...In northeast Iowa, Fayette, Allamakee, and Clayton Counties. In southwest Wisconsin, Crawford, Richland, and Grant Counties. * WHEN...From 8 PM this evening to 9 AM CST Friday. * IMPACTS...Travel could be very difficult. The hazardous conditions could impact the Friday morning commute.
INSTRUCTION: If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. In Iowa, visit 511ia.org for road conditions. In Wisconsin, visit 511wi.gov for road conditions.
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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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