Weather Alert in Illinois
Flood Advisory issued March 16 at 1:58AM CDT until March 16 at 10:00AM CDT by NWS Chicago IL
AREAS AFFECTED: Cook, IL; DuPage, IL; Kane, IL; Kendall, IL; Will, IL; Lake, IN
DESCRIPTION: * WHAT...Flooding caused by earlier excessive rainfall is occurring. * WHERE...Portions of northeast Illinois, including the following counties, Cook, DuPage, Kane, Kendall and Will and northwest Indiana, including the following county, Lake IN. * WHEN...Until 1000 AM CDT Monday. * IMPACTS...Creeks and streams will remain at bankfull or crest in minor flood stage. Partial flooding of low-lying areas such as fields and ditches will continue. Due to falling temperatures and falling snow, flood waters may be slow to recede or may even freeze in place, particularly in ditches and fields. * ADDITIONAL DETAILS... - At 154 AM CDT, river gauge levels in the advisory area indicate that many rivers and creeks are in action or minor flood stage. In addition, many fields, ditches, and other low lying areas are full of water. - Some locations that will experience flooding include... Chicago, Aurora, Joliet, Naperville, Cicero, Hammond, Gary, Arlington Heights, Evanston, Schaumburg, Bolingbrook, Palatine, Skokie, Des Plaines, Orland Park, Tinley Park, Oak Lawn, Berwyn, Mount Prospect and Wheaton. - 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 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
Weather Topic: What are Mammatus Clouds?
Home - Education - Cloud Types - Mammatus Clouds
Next Topic: Nimbostratus Clouds
A mammatus cloud is a cloud with a unique feature which resembles
a web of pouches hanging along the base of the cloud.
In the United States, mammatus clouds tend to form in the warmer months, commonly
in the Midwest and eastern regions.
While they usually form at the bottom of a cumulonimbis cloud, they can also form
under altostratus, altocumulus, stratocumulus, and cirrus clouds. Mammatus clouds
warn that severe weather is close.
Next Topic: Nimbostratus Clouds
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