Weather Alert in Illinois
Flood Warning issued April 4 at 10:48AM CDT until April 9 at 1:40PM CDT by NWS Lincoln IL
AREAS AFFECTED: Crawford, IL; Jasper, IL
DESCRIPTION: ...The Flood Warning continues for the following rivers in Illinois... Embarras River at Lawrenceville affecting Lawrence County. Embarras River at Ste. Marie affecting Crawford and Jasper Counties. .The following forecasts are based on observed precipitation, soil moisture conditions, and forecast precipitation. * WHAT...Moderate flooding is forecast. * WHERE...Embarras River at Ste. Marie. * WHEN...From Sunday morning to early Wednesday afternoon. * IMPACTS...At 21.0 feet, Water overtops a few private levees in the Ste. Marie area. * ADDITIONAL DETAILS... - At 9:45 AM CDT Friday the stage was 10.1 feet. - Forecast...The river is expected to rise above flood stage Sunday morning to a crest of 20.6 feet Monday evening. It will then fall below flood stage Wednesday morning. - Flood stage is 19.0 feet. - http://www.weather.gov/safety/flood
INSTRUCTION: Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. 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 Mammatus Clouds?
Home - Education - Cloud Types - Mammatus Clouds
Next Topic: Nimbostratus Clouds
A mammatus cloud is a cloud with a unique feature which resembles
a web of pouches hanging along the base of the cloud.
In the United States, mammatus clouds tend to form in the warmer months, commonly
in the Midwest and eastern regions.
While they usually form at the bottom of a cumulonimbis cloud, they can also form
under altostratus, altocumulus, stratocumulus, and cirrus clouds. Mammatus clouds
warn that severe weather is close.
Next Topic: Nimbostratus Clouds
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
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