Weather Alert in Illinois
Flood Advisory issued August 11 at 11:51PM CDT until August 12 at 1:45AM CDT by NWS Chicago IL
AREAS AFFECTED: Cook, IL
DESCRIPTION: * WHAT...Flooding caused by excessive rainfall is expected. * WHERE...A portion of northeast Illinois, including the following county, Cook. * WHEN...Until 145 AM CDT. * IMPACTS...Flooding may occur in poor drainage and urban areas, including flooded underpasses, roads, and streets. * ADDITIONAL DETAILS... - At 1148 PM CDT, Doppler radar indicated heavy rain producing thunderstorms over the advisory area. Between 1 and 2 inches of rain have fallen this evening in the current and previous rounds of storms. - Additional rainfall amounts up to 1 inch are possible over portions of the advisory area. Runoff from the rain that has fallen and continues to fall will result in flooding. - Some locations that will experience flooding include... Evanston, Skokie, Niles, West Ridge, Albany Park, Rogers Park, Edgewater, Portage Park, Uptown, Dunning, Morton Grove, Lincolnwood, Harwood Heights, Lincoln Square, Norwood Park, Jefferson Park, Forest Glen and North Park. - http://www.weather.gov/safety/flood
INSTRUCTION: A Flood Advisory means flooding along poor drainage areas is imminent or may already be occurring. Persons in the advisory area should use caution and avoid flood waters. Be especially cautious at night when it is harder to recognize the dangers of flooding.
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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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