Weather Alert in Illinois
Flood Warning issued April 24 at 8:45AM CDT until April 27 at 1:00AM CDT by NWS Paducah KY
AREAS AFFECTED: Jackson, IL
DESCRIPTION: ...The Flood Warning is extended for the following rivers in Illinois... Big Muddy River near Murphysboro. .The Big Muddy River will continue to fall, dropping below flood stage at Murphysboro late Saturday. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Big Muddy River near Murphysboro. * WHEN...Until early Sunday morning. * ADDITIONAL DETAILS... - At 8:00 AM CDT Thursday the stage was 22.5 feet. - Forecast...The river is expected to fall below flood stage Saturday evening. - Flood stage is 22.0 feet. - http://www.weather.gov/safety/flood
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 is Sleet?
Home - Education - Precipitation - Sleet
Next Topic: Snow
Sleet is a form of precipitation in which small ice pellets are the primary
components. These ice pellets are smaller and more translucent than hailstones,
and harder than graupel. Sleet is caused by specific atmospheric conditions and
therefore typically doesn't last for extended periods of time.
The condition which leads to sleet formation requires a warmer body of air to be
wedged in between two sub-freezing bodies of air. When snow falls through a warmer
layer of air it melts, and as it falls through the next sub-freezing body of air
it freezes again, forming ice pellets known as sleet. In some cases, water
droplets don't have time to freeze before reaching the surface and the result is
freezing rain.
Next Topic: Snow
Weather Topic: What are Stratocumulus Clouds?
Home - Education - Cloud Types - Stratocumulus Clouds
Next Topic: Stratus Clouds
Stratocumulus clouds are similar to altocumulus clouds in their
fluffy appearance, but have a slightly darker shade due to their additional mass.
A good way to distinguish the two cloud types is to hold your hand out and measure
the size of an individual cloud; if it is the size of your thumb it is generally
an altocumulus cloud, if it is the size of your hand it is generally a
stratocumulus cloud.
It is uncommon for stratocumulus clouds to produce precipitation, but if they do
it is usually a light rain or snow.
Next Topic: Stratus Clouds
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