Weather Alert in Illinois
Flood Warning issued April 29 at 8:39PM CDT by NWS St Louis MO
AREAS AFFECTED: Morgan, IL; Pike, IL
DESCRIPTION: ...The Flood Warning is extended for the following points along the Illinois River... Illinois River at Hardin. Illinois River at Meredosia. Illinois River at Valley City. River forecasts are based on observed precipitation and forecast precipitation for the next 24 hours. * WHAT...Minor flooding is forecast. * WHERE...Illinois River at Meredosia. * WHEN...From late Wednesday night until further notice. * IMPACTS...At 18.0 feet, City of Meredosia plugs storm sewer outlets. * ADDITIONAL DETAILS... - At 8:30 PM CDT Monday the stage was 15.1 feet. - Forecast...The river is expected to rise above flood stage early Thursday morning and continue rising to 18.0 feet early Sunday morning. Additional rises are possible thereafter. - Flood stage is 17.0 feet.
INSTRUCTION: Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Rainfall heavier than forecast could cause river levels to rise even higher than predicted. The National Weather Service will monitor this developing situation and issue follow up statements as conditions change. This product, along with additional weather and stream information, is available at https://water.weather.gov/ahps2/index.php?wfo=lsx. The next statement will be issued Wednesday morning at 845 AM CDT.
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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
