Weather Alert in Illinois
Flood Warning issued May 9 at 9:55AM CDT until May 10 at 7:00PM CDT by NWS Paducah KY
AREAS AFFECTED: Gallatin, IL; Wayne, IL; White, IL
DESCRIPTION: ...The Flood Warning is extended for the following rivers in Illinois... Little Wabash River at Carmi affecting Gallatin, White and Wayne Counties. .The Little Wabash is continuing a very slow fall, and is forecast to drop below flood stage Saturday afternoon. For the Little Wabash River...including Carmi...Minor flooding is forecast. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Little Wabash River at Carmi. * WHEN...Until tomorrow evening. * IMPACTS...At 27.0 feet, The inundation of county roads begins. * ADDITIONAL DETAILS... - At 9:30 AM CDT Friday the stage was 27.4 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 9:30 AM CDT Friday was 27.4 feet. - Forecast...The river is expected to fall below flood stage early tomorrow afternoon and continue falling to 19.0 feet Friday, May 16. - Flood stage is 27.0 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 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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