Weather Alert in Illinois
Flood Warning issued April 24 at 10:29AM CDT until April 26 at 1:00PM CDT by NWS Lincoln IL
AREAS AFFECTED: Brown, IL; Cass, IL; Morgan, IL; Schuyler, IL
DESCRIPTION: ...The Flood Warning continues for the following rivers in Illinois... Illinois River at Beardstown affecting Brown, Schuyler, Morgan and Cass Counties. ...The Flood Warning is extended for the following rivers in Illinois... Illinois River near Havana affecting Fulton, Mason and Cass Counties. .The following forecasts are based on observed precipitation, soil moisture conditions, and forecast precipitation. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Illinois River at Beardstown. * WHEN...Until early Friday afternoon. * IMPACTS...At 14.4 feet, Seepage problems begin in the Coal Creek Drainage and Levee District. * ADDITIONAL DETAILS... - At 9:45 AM CDT Wednesday the stage was 14.4 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 9:45 AM CDT Wednesday was 14.7 feet. - Forecast...The river is expected to rise to a crest of 14.5 feet this afternoon. It will then fall below flood stage Friday morning. - Flood stage is 14.0 feet. - http://www.weather.gov/safety/flood
INSTRUCTION: Persons with interests along this river need to remain aware of the latest forecasts and associated flood risk for their area. Stay tuned for further updates on this flooding situation. Additional information is available at www.weather.gov.
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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
