Weather Alert in Illinois
Flood Warning issued March 6 at 11:47AM CST until March 15 at 9:00AM CDT by NWS Paducah KY
AREAS AFFECTED: Gallatin, IL; Hardin, IL; Crittenden, KY; Union, KY
DESCRIPTION: ...The Flood Warning is extended for the following river in Indiana...Kentucky...Illinois... Ohio River at Newburgh Dam and Shawneetown. .Recent and expected heavy rains are projected to raise water levels into flood by next week on the Ohio River at Newburgh Dam and Shawneetown. Both locations are projected to crest in minor flood later in the week. For the Ohio River...including Newburgh Dam, Shawneetown...Minor flooding is forecast. * WHAT...Minor flooding is forecast. * WHERE...Ohio River at Shawneetown. * WHEN...From late Sunday night to Sunday, March 15. * ADDITIONAL DETAILS... - At 11:30 AM CST Friday the stage was 25.3 feet. - Forecast...The river is expected to rise above flood stage early Monday morning to a crest of 35.2 feet Thursday morning. It will then fall below flood stage Sunday, March 15. - Flood stage is 33.0 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 Precipitation?
Home - Education - Precipitation - Precipitation
Next Topic: Rain
Precipitation can refer to many different forms of water that
may fall from clouds. Precipitation occurs after a cloud has become saturated to
the point where its water particles are more dense than the air below the cloud.
In most cases, precipitation will reach the ground, but it is not uncommon for
precipitation to evaporate before it reaches the earth's surface.
When precipitation evaporates before it contacts the ground it is called Virga.
Graupel, hail, sleet, rain, drizzle, and snow are forms of precipitation, but fog
and mist are not considered precipitation because the water vapor which
constitutes them isn't dense enough to fall to the ground.
Next Topic: Rain
Weather Topic: What are Shelf Clouds?
Home - Education - Cloud Types - Shelf Clouds
Next Topic: Sleet
A shelf cloud is similar to a wall cloud, but forms at the front
of a storm cloud, instead of at the rear, where wall clouds form.
A shelf cloud is caused by a series of events set into motion by the advancing
storm; first, cool air settles along the ground where precipitation has just fallen.
As the cool air is brought in, the warmer air is displaced, and rises above it,
because it is less dense. When the warmer air reaches the bottom of the storm cloud,
it begins to cool again, and the resulting condensation is a visible shelf cloud.
Next Topic: Sleet
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