Weather Alert in Illinois

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Current Alerts for Chicago, IL: Hydrologic Outlook

Flood Warning issued April 3 at 11:11AM CDT by NWS Paducah KY

AREAS AFFECTED: Franklin, IL; Williamson, IL

DESCRIPTION: ...The National Weather Service in Paducah KY has issued a Flood Warning for the following rivers in Illinois... Big Muddy River near Plumfield affecting Williamson and Franklin Counties. Big Muddy River near Murphysboro affecting Jackson County. .A multi-day heavy rain is headed toward the region lasting through Saturday. Three days of rainfall is incorporated into the forecast but it still does not include the entire event. The Big Muddy River has started to rise and increases in crest forecasts can be expected. Now is the time to prepare for major flooding. * WHAT...Moderate flooding is forecast. * WHERE...Big Muddy River near Plumfield. * WHEN...From late Friday night until further notice. * ADDITIONAL DETAILS... - At 10:30 AM CDT Thursday the stage was 12.5 feet. - Forecast...The river will rise above flood stage early Saturday morning to 30.7 feet early Monday afternoon. It will then fall early Wednesday morning. It will rise to 30.2 feet Wednesday evening. It will then fall again but remain above flood stage. - Flood stage is 20.0 feet.

INSTRUCTION: Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Motorists should not attempt to drive around barricades or drive cars through flooded areas. Caution is urged when walking near riverbanks. Be especially cautious at night when it is harder to recognize the dangers of flooding. Additional information is available at www.weather.gov.

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Weather Topic: What are Stratus Clouds?

Home - Education - Cloud Types - Stratus Clouds

Stratus Clouds Next Topic: Wall Clouds

Stratus clouds are similar to altostratus clouds, but form at a lower altitude and are identified by their fog-like appearance, lacking the distinguishing features of most clouds.

Stratus clouds are wider than most clouds, and their base has a smooth, uniform look which is lighter in color than a nimbostratus cloud. The presence of a stratus cloud indicates the possibility of minor precipitation, such as drizzle, but heavier precipitation does not typically arrive in the form of a stratus cloud.

Next Topic: Wall Clouds

Weather Topic: What are Altocumulus Clouds?

Home - Education - Cloud Types - Altocumulus Clouds

Altocumulus Clouds Next Topic: Altostratus Clouds

Similar to cirrocumulus clouds, altocumulus clouds are characterized by cloud patches. They are distinguished by larger cloudlets than cirrocumulus clouds but are still smaller than stratocumulus clouds.

Altocumulus clouds most commonly form in middle altitudes (between 2 and 5 km) and may resemble, at times, the shape of a flying saucer. These uncommon formations, called altocumulus lenticularis, are created by uplift in the atmosphere and are most often seen in close proximity to mountains.

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