Weather Alert in Illinois

Recent Locations: Henning, IL

Current Alerts for Henning, IL: Special Weather Statement

Severe Thunderstorm Watch issued March 4 at 2:32PM CST until March 4 at 9:00PM CST by NWS Paducah KY

AREAS AFFECTED: Alexander, IL; Edwards, IL; Franklin, IL; Gallatin, IL; Hamilton, IL; Hardin, IL; Jackson, IL; Jefferson, IL; Johnson, IL; Massac, IL; Perry, IL; Pope, IL; Pulaski, IL; Saline, IL; Union, IL; Wabash, IL; Wayne, IL; White, IL; Williamson, IL; Gibson, IN; Pike, IN; Posey, IN; Spencer, IN; Vanderburgh, IN; Warrick, IN; Ballard, KY; Carlisle, KY; Crittenden, KY; Daviess, KY; Fulton, KY; Henderson, KY; Hickman, KY; Livingston, KY; McCracken, KY; Union, KY; Webster, KY; Bollinger, MO; Butler, MO; Cape Girardeau, MO; Carter, MO; Mississippi, MO; New Madrid, MO; Perry, MO; Ripley, MO; Scott, MO; Stoddard, MO; Wayne, MO

DESCRIPTION: THE NATIONAL WEATHER SERVICE HAS ISSUED SEVERE THUNDERSTORM WATCH 11 IN EFFECT UNTIL 9 PM CST /10 PM EST/ THIS EVENING FOR THE FOLLOWING AREAS IN ILLINOIS THIS WATCH INCLUDES 19 COUNTIES IN SOUTHEAST ILLINOIS EDWARDS IN SOUTHERN ILLINOIS ALEXANDER FRANKLIN GALLATIN HAMILTON HARDIN JACKSON JEFFERSON JOHNSON MASSAC PERRY POPE PULASKI SALINE UNION WABASH WAYNE WHITE WILLIAMSON IN INDIANA THIS WATCH INCLUDES 6 COUNTIES IN SOUTHWEST INDIANA POSEY IN SOUTHWEST INDIANA GIBSON PIKE SPENCER VANDERBURGH WARRICK IN KENTUCKY THIS WATCH INCLUDES 11 COUNTIES IN WESTERN KENTUCKY BALLARD CARLISLE CRITTENDEN DAVIESS FULTON HENDERSON HICKMAN LIVINGSTON MCCRACKEN UNION WEBSTER IN MISSOURI THIS WATCH INCLUDES 11 COUNTIES IN SOUTHEAST MISSOURI BOLLINGER BUTLER CAPE GIRARDEAU CARTER MISSISSIPPI NEW MADRID PERRY RIPLEY SCOTT STODDARD WAYNE THIS INCLUDES THE CITIES OF ALBION, BARDWELL, BLOOMFIELD, BOONVILLE, CAIRO, CAPE GIRARDEAU, CARBONDALE, CARMI, CHARLESTON, CLINTON, DIXON, DONIPHAN, ELIZABETHTOWN, EVANSVILLE, FAIRFIELD, FORT BRANCH, GOLCONDA, GRAYVILLE, HARRISBURG, HENDERSON, HERRIN, HICKMAN, JACKSON, JONESBORO, MARBLE HILL, MARION, MCLEANSBORO, METROPOLIS, MORGANFIELD, MOUND CITY, MOUNT CARMEL, MOUNT VERNON, MURPHYSBORO, NEW MADRID, OWENSBORO, PADUCAH, PERRYVILLE, PETERSBURG, PIEDMONT, PINCKNEYVILLE, POPLAR BLUFF, POSEYVILLE, ROCKPORT, SHAWNEETOWN, SIKESTON, SMITHLAND, VAN BUREN, VIENNA, WEST FRANKFORT, WEST SALEM, AND WICKLIFFE.

INSTRUCTION: N/A

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Weather Topic: What are Wall Clouds?

Home - Education - Cloud Types - Wall Clouds

Wall Clouds Next Topic: Altocumulus Clouds

A wall cloud forms underneath the base of a cumulonimbus cloud, and can be a hotbed for deadly tornadoes.

Wall clouds are formed by air flowing into the cumulonimbus clouds, which can result in the wall cloud descending from the base of the cumulonimbus cloud, or rising fractus clouds which join to the base of the storm cloud as the wall cloud takes shape.

Wall clouds can be very large, and in the Northern Hemisphere they generally form at the southern edge of cumulonimbus clouds.

Next Topic: Altocumulus Clouds

Weather Topic: What are Altostratus Clouds?

Home - Education - Cloud Types - Altostratus Clouds

Next Topic: Cirrocumulus Clouds

Altostratus clouds form at mid to high-level altitudes (between 2 and 7 km) and are created by a warm, stable air mass which causes water vapor to condense as it rise through the atmosphere. Usually altostratus clouds are featureless sheets characterized by a uniform color.

In some cases, wind punching through the cloud formation may give it a waved appearance, called altostratus undulatus. Altostratus clouds are commonly seen with other cloud formations accompanying them.

Next Topic: Cirrocumulus Clouds