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 is Freezing Rain?
Home - Education - Precipitation - Freezing Rain
Next Topic: Graupel
Freezing rain is a condition where precipitation which has fallen in the form of
water droplets reaches temperatures which are below freezing and freezes upon
coming into contact
with surface objects. The result of this precipitation is a glaze of ice which
can be damaging to plants and man-made structures. A severe onset of freezing
rain which results in a very thick glaze of ice is known as an ice storm.
Next Topic: Graupel
Weather Topic: What is Hail?
Home - Education - Precipitation - Hail
Next Topic: Hole Punch Clouds
Hail is a form of precipitation which is recognized by large solid balls or
clumps of ice. Hail is created by thunderstorm clouds with strong updrafts of wind.
As the hailstones remain in the updraft, ice is deposited onto them until their
weight becomes heavy enough for them to fall to the earth's surface.
Hail storms can cause significant damage to crops, aircrafts, and man-made structures,
despite the fact that the duration is usually less than ten minutes.
Next Topic: Hole Punch Clouds
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