Weather Alert in Illinois
Flood Warning issued March 15 at 11:32AM CDT until March 19 at 10:00PM 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 Wayne, White and Gallatin Counties. 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 late Thursday evening. * IMPACTS...At 27.0 feet, The inundation of county roads begins. * ADDITIONAL DETAILS... - At 10:30 AM CDT Sunday the stage was 28.1 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 10:30 AM CDT Sunday was 28.1 feet. - Forecast...The river is expected to rise to a crest of 28.2 feet just after midnight tonight. It will then fall below flood stage Thursday afternoon. - Flood stage is 27.0 feet.
INSTRUCTION: Motorists should not attempt to drive around barricades or drive cars through flooded areas. 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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