Weather Alert in Illinois

Flood Warning issued April 18 at 9:35AM CDT until April 22 at 8:30AM CDT by NWS Paducah KY

AREAS AFFECTED: Jackson, IL

DESCRIPTION: ...The Flood Warning continues for the following rivers in Illinois... Big Muddy River near Plumfield and Murphysboro. .Levels will continue to fall on the Big Muddy River, dropping below flood stage near Plumfield Sunday, and near Murphysboro Tuesday. * WHAT...Minor flooding is occurring and will continue. * WHERE...Big Muddy River near Murphysboro. * WHEN...Until Tuesday morning. * ADDITIONAL DETAILS... - At 9:00 AM CDT Friday the stage was 26.2 feet. - Forecast...The river will fall below flood stage early Tuesday morning. - Flood stage is 22.0 feet.

INSTRUCTION: Caution is urged when walking near riverbanks. Additional information is available at www.weather.gov.

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Weather Topic: What are Cumulonimbus Clouds?

Home - Education - Cloud Types - Cumulonimbus Clouds

Cumulonimbus Clouds Next Topic: Cumulus Clouds

The final form taken by a growing cumulus cloud is the cumulonimbus cloud, which is very tall and dense. The tower of a cumulonimbus cloud can soar 23 km into the atmosphere, although most commonly they stop growing at an altitude of 6 km.

Even small cumulonimbus clouds appear very large in comparison to other cloud types. They can signal the approach of stormy weather, such as thunderstorms or blizzards.

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Weather Topic: What is Drizzle?

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Drizzle Next Topic: Evaporation

Drizzle is precipitation in the form of water droplets which are smaller than raindrops.

Drizzle is characterized by fine, gently falling droplets and typically does not impact human habitation in a negative way. The exception to this is freezing drizzle, a condition where drizzle freezes immediately upon reaching earth's surface. Freezing drizzle is still less dangerous than freezing rain, but can potentially result in hazardous road conditions.

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