Weather Alert in Illinois

Recent Locations: Colton, SD   Monroeville, IN   Tonica, IL  

Flash Flood Warning issued April 3 at 10:58PM CDT until April 4 at 2:00AM CDT by NWS Chicago IL

AREAS AFFECTED: Livingston, IL

DESCRIPTION: At 1058 PM CDT, local law enforcement reported flash flooding in multiple locations across the warned area, including near Flanagan, Pontiac, and Dwight. Between 2 and 4 inches of rain have fallen. Flash flooding is already occurring. HAZARD...Flash flooding. SOURCE...Law enforcement. IMPACT...Rapid-onset flooding of creeks, streams, drainage ditches, streets, underpasses, low-lying areas, and other poor drainage areas. Some locations that will experience flash flooding include... Pontiac, Dwight, Flanagan, Odell and Cornell. Another round of heavy rain is expected overnight which may prolong or even worsen the ongoing flooding impacts.

INSTRUCTION: A Flash Flood Warning means rapid-onset flooding is imminent or may already be occurring. Persons along creeks, drainage ditches, and other waterways should take immediate precautions to protect life and property. Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles.

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Weather Topic: What is Hail?

Home - Education - Precipitation - Hail

Hail Next Topic: Hole Punch Clouds

Hail is a form of precipitation which is recognized by large solid balls or clumps of ice. Hail is created by thunderstorm clouds with strong updrafts of wind. As the hailstones remain in the updraft, ice is deposited onto them until their weight becomes heavy enough for them to fall to the earth's surface.

Hail storms can cause significant damage to crops, aircrafts, and man-made structures, despite the fact that the duration is usually less than ten minutes.

Next Topic: Hole Punch Clouds

Weather Topic: What are Mammatus Clouds?

Home - Education - Cloud Types - Mammatus Clouds

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

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