Weather Alert in Illinois
Flood Advisory issued August 11 at 11:36PM CDT until August 12 at 12:45AM CDT by NWS Chicago IL
AREAS AFFECTED: Cook, IL; DuPage, IL; Will, IL
DESCRIPTION: * WHAT...Flooding caused by excessive rainfall continues. * WHERE...A portion of northeast Illinois, including the following counties, Cook, DuPage and Will. * WHEN...Until 1245 AM CDT. * IMPACTS...Flooding is occurring in poor drainage and urban areas in portions of the advisory area. Some underpasses and streets will be flooded, especially on the north side of Chicago. * ADDITIONAL DETAILS... - At 1131 PM CDT, Trained weather spotters reported flooding in the advisory area, including street flooding in Lincoln Park and a flooded viaduct in Bucktown. Between 1.5 and 2.5 inches of rain have fallen. - The heaviest rainfall has ended but scattered thunderstorms may produce an additional quarter to half inch of rain in portions of the advisory area. - Some locations that will experience flooding include... Downtown Chicago, Naperville, Cicero, Bolingbrook, Oak Lawn, Berwyn, Wheaton, Oak Park, Downers Grove, Elmhurst, Lombard, Addison, Woodridge, Austin, Midway Airport, South Lawndale, Chicago Lawn, Irving Park, West Town and Bridgeport. - http://www.weather.gov/safety/flood
INSTRUCTION: A Flood Advisory means 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. Be especially cautious at night when it is harder to recognize the dangers of flooding.
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Weather Topic: What are Cirrostratus Clouds?
Home - Education - Cloud Types - 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
Weather Topic: What is Condensation?
Home - Education - Precipitation - Condensation
Next Topic: Contrails
Condensation is the process which creates clouds, and therefore
it is a crucial process in the water cycle.
Condensation is the change of matter from a state of gas into a state of liquid,
and it happens because water molecules release heat into the atmosphere and
become organized into a more closely packed structure, what we might see as
water droplets.
Water is always present in the air around us as a vapor, but it's too small for
us to see. When water undergoes the process of condensation it becomes organized
into visible water droplets. You've probably seen condensation happen before on the
surface of a cold drink!
Next Topic: Contrails
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