Weather Alert in Illinois

Flood Warning issued April 4 at 12:16PM EDT by NWS Indianapolis IN

AREAS AFFECTED: Lawrence, IL; Wabash, IL; Knox, IN

DESCRIPTION: ...The National Weather Service in Indianapolis IN has issued a Flood Warning for the following rivers in Indiana...Illinois... Wabash River at Vincennes. .Significant flooding is expected to develop along the Wabash River due to prior rains and additional rounds of heavy rainfall through Sunday. Additional rainfall of 1.5 to three inches in the upper and middle Wabash and three to five inches in the lower Wabash is expected through Sunday. The crest on the Wabash should be in Lafayette late Sunday night to Monday morning and points downstream thereafter. * WHAT...Moderate flooding is forecast. * WHERE...Wabash River at Vincennes. * WHEN...From Saturday evening until further notice. * IMPACTS...At 22.0 feet, Almost all unprotected areas flood. River cabins are surrounded by high water. Oil fields in lowland areas are inaccessible by land vehicles. Most local river roads flood. * ADDITIONAL DETAILS... - At 11:45 AM EDT Friday /10:45 AM CDT Friday/ the stage was 10.8 feet. - Forecast...The river will rise above flood stage tomorrow evening to 18.8 feet Sunday evening and rise to 22.0 feet Saturday, April 12. - Flood stage is 16.0 feet. - http://www.weather.gov/safety/flood

INSTRUCTION: Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Additional information is available at www.weather.gov/ind. The next statement should be issued late tonight by around 330 AM EDT /230 AM CDT/.

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Weather Topic: What is Hail?

Home - Education - Precipitation - Hail

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.

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Weather Topic: What are Mammatus Clouds?

Home - Education - Cloud Types - Mammatus Clouds

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.

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