Weather Alert in Illinois

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Flood Warning issued April 18 at 9:24PM CDT until April 23 at 4:00PM CDT by NWS Paducah KY

AREAS AFFECTED: Pulaski, IL; Ballard, KY

DESCRIPTION: ...The Flood Warning continues for the following rivers in Illinois...Kentucky...Missouri... Ohio River at Paducah affecting Massac, Livingston, McCracken and Pope Counties. Ohio River at Cairo affecting Ballard, Fulton, Alexander, Mississippi, Carlisle, Hickman and Pulaski Counties. Ohio River at Olmsted Lock and Dam affecting Ballard and Pulaski Counties. Ohio River at Golconda affecting Crittenden, Livingston, Hardin and Pope Counties. Ohio River at Shawneetown affecting Crittenden, Union, Hardin and Gallatin Counties. .Flooding continues along much of the lower Ohio River, but levels are continuing to fall. * WHAT...Major flooding is occurring and major flooding is forecast. * WHERE...Ohio River at Olmsted Lock and Dam. * WHEN...Until Wednesday afternoon. * ADDITIONAL DETAILS... - At 9:00 PM CDT Friday the stage was 47.2 feet. - Forecast...The river is expected to fall below flood stage late Wednesday morning and continue falling to 21.7 feet Monday, April 28. - Flood stage is 36.0 feet.

INSTRUCTION: Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Caution is urged when walking near riverbanks. Additional information is available at www.weather.gov.

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Weather Topic: What is Condensation?

Home - Education - Precipitation - Condensation

Condensation Next Topic: Contrails

Condensation is the process which creates clouds, and therefore it is a crucial process in the water cycle. Condensation is the change of matter from a state of gas into a state of liquid, and it happens because water molecules release heat into the atmosphere and become organized into a more closely packed structure, what we might see as water droplets.

Water is always present in the air around us as a vapor, but it's too small for us to see. When water undergoes the process of condensation it becomes organized into visible water droplets. You've probably seen condensation happen before on the surface of a cold drink!

Next Topic: Contrails

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.

Next Topic: Cumulus Clouds

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