Weather Alert in Illinois

Recent Locations: Lebanon, IL  

Flood Advisory issued March 6 at 7:04PM CST until March 6 at 9:00PM CST by NWS Chicago IL

AREAS AFFECTED: Cook, IL; Kankakee, IL; Will, IL; Lake, IN

DESCRIPTION: * WHAT...Flooding caused by excessive rainfall continues. * WHERE...Portions of northeast Illinois, including the following counties, Cook, Kankakee and Will and northwest Indiana, including the following county, Lake IN. * WHEN...Until 900 PM CST. * IMPACTS...Flooding may occur in poor drainage and urban areas. Underpasses may be flooded. Roads and streets may be flooded. * ADDITIONAL DETAILS... - At 703 PM CST, Emergency management reported roads flooded in Munster, Indiana due heavy rainfall from thunderstorms. Between 1 and 3 inches of rain have fallen. - Additional rainfall amounts up to 1 inch are expected over the area. This additional rain will result in minor flooding. - Some locations that will experience flooding include... Joliet, Hammond, Gary, Tinley Park, Calumet City, Portage, Merrillville, Chicago Heights, East Chicago, Schererville, Hobart, Lansing, Crown Point, Harvey, New Lenox, Highland, Munster, Park Forest, Homewood and Matteson. - http://www.weather.gov/safety/flood

INSTRUCTION: A Flood Advisory means minor flooding along waterways and other poor drainage areas is imminent or may already be occurring. Persons in the advisory area should use caution and avoid flood waters.

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Weather Topic: What are Altostratus Clouds?

Home - Education - Cloud Types - Altostratus Clouds

Altostratus Clouds Next Topic: Cirrocumulus Clouds

Altostratus clouds form at mid to high-level altitudes (between 2 and 7 km) and are created by a warm, stable air mass which causes water vapor to condense as it rise through the atmosphere. Usually altostratus clouds are featureless sheets characterized by a uniform color.

In some cases, wind punching through the cloud formation may give it a waved appearance, called altostratus undulatus. Altostratus clouds are commonly seen with other cloud formations accompanying them.

Next Topic: Cirrocumulus Clouds

Weather Topic: What are Cirrostratus Clouds?

Home - Education - Cloud Types - Cirrostratus Clouds

Cirrostratus Clouds Next Topic: Cirrus Clouds

Cirrostratus clouds are high, thin clouds that form above 20,000 feet and are made mostly of ice crystals. They sometimes look like giant feathers, horse tails, or curls of hair in the sky. These clouds are pushed by the jet stream and can move at high speeds reaching 100 mph.

What do they indicate?
They indicate that a precipitation is likely within 24 hours.

Next Topic: Cirrus Clouds

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