Weather Alert in Illinois
Flood Watch issued April 2 at 10:25AM CDT until April 5 at 7:00AM CDT by NWS Chicago IL
AREAS AFFECTED: Winnebago
DESCRIPTION: ...The National Weather Service in Chicago IL has issued a Flood Watch for the following rivers in Illinois... Kishwaukee River near Perryville affecting Winnebago County. For the Kishwaukee River...including Perryville...flooding is possible. * WHAT...Flooding is possible. * WHERE...Kishwaukee River from Confluence with South Branch Kishwaukee River downstream to the Rock River, including the Perryville gauge. * WHEN...From Friday evening to Sunday morning. * IMPACTS...At 12.0 feet, Water overtops low-lying banks in Blackhawk Springs Forest Preserve and in south Rockford near Chicago Rockford International Airport. Trails threatened at Blackhawk Springs Forest Preserve. * ADDITIONAL DETAILS... - At 9:30 AM CDT Thursday the stage was 6.6 feet. - Forecast...Flood stage may be reached late tomorrow afternoon or evening. - Flood stage is 12.0 feet. - http://www.weather.gov/safety/flood
INSTRUCTION: A Flood Watch means water levels above flood stage are possible, but not yet certain, based upon the latest forecasts. Persons along rivers and streams in the watch area should monitor the latest forecasts and be prepared to take action should flooding develop. These forecasts are based on observed precipitation as well as forecast precipitation 24 hours into the future. Changes to the rainfall forecast, or any additional rainfall after 24 hours, may cause changes to these river forecasts. Additional information is available at www.weather.gov. The next statement will be issued by late tonight.
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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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