Weather Alert in Illinois
Flood Warning issued April 4 at 12:16PM EDT by NWS Indianapolis IN
AREAS AFFECTED: Crawford, IL; Lawrence, IL; Knox, IN; Sullivan, IN
DESCRIPTION: ...The Flood Warning is extended for the following rivers in Indiana...Illinois... Wabash River. Wildcat Creek near Lafayette. .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 Riverton. * WHEN...From Saturday morning until further notice. * IMPACTS...At 22.0 feet, Flooding becomes more serious. Water is approaching critical levels on most levees. Flooding enters some river cabins. Flooding is at the outskirts of Palestine and Russellville, Illinois. Flood waters near Illinois 33 between Palestine and Hutsonville, Illinois. Many local river roads are flooded. * ADDITIONAL DETAILS... - At 12:00 PM EDT Friday /11:00 AM CDT Friday/ the stage was 10.9 feet. - Forecast...The river is expected to rise above flood stage tomorrow morning and continue rising to a crest of 22.1 feet Thursday evening. - Flood stage is 15.0 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 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
Weather Topic: What is Snow?
Home - Education - Precipitation - Snow
Next Topic: Stratocumulus Clouds
Snow is precipitation taking the form of ice crystals. Each ice crystal, or snowflake,
has unique characteristics, but all of them grow in a hexagonal structure.
Snowfall can last for sustained periods of time and result in significant buildup
of snow on the ground.
On the earth's surface, snow starts out light and powdery, but as it begins to melt
it tends to become more granular, producing small bits of ice which have the consistency of
sand. After several cycles of melting and freezing, snow can become very dense
and ice-like, commonly known as snow pack.
Next Topic: Stratocumulus Clouds
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