Weather Alert in Illinois

Recent Locations: Granville, IL  

Severe Thunderstorm Warning issued July 16 at 2:43PM CDT until July 16 at 3:15PM CDT by NWS Lincoln IL

AREAS AFFECTED: De Witt, IL; Logan, IL; McLean, IL; Mason, IL; Menard, IL; Sangamon, IL; Tazewell, IL

DESCRIPTION: At 243 PM CDT, severe thunderstorms were located along a line extending from near McLean to near Lincoln to near Williamsville, moving east at 35 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. These severe storms will be near... Waynesville, Elkhart, and Beason around 250 PM CDT. Heyworth and Mount Pulaski around 255 PM CDT. Wapella, Kenney, and Chestnut around 300 PM CDT. Other locations impacted by these severe thunderstorms include Lawndale, Lincolns New Salem, Midland City, Hallsville, Cantrall, Fancy Prairie, Broadwell, and Sweetwater. This includes the following highways... Interstate 155 between mile markers 0 and 9. Interstate 55 between mile markers 106 and 152. Interstate 74 between mile markers 143 and 147.

INSTRUCTION: For your protection move to an interior room on the lowest floor of a building.

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Weather Topic: What are Hole Punch Clouds?

Home - Education - Cloud Types - Hole Punch Clouds

Hole Punch Clouds Next Topic: Mammatus Clouds

A hole punch cloud is an unusual occurrence when a disk-shaped hole appears in a cirrostratus, cirrocumulus, or altocumulus cloud.

When part of the cloud forms ice crystals, water droplets in the surrounding area of the cloud evaporate. The effect of this process produces a large elliptical gap in the cloud. The hole punch cloud formation is rare, but it is not specific to any geographic area.

Other names which have been used to describe this phenomena include fallstreak hole, skypunch, and cloud hole.

Next Topic: Mammatus Clouds

Weather Topic: What are Nimbostratus Clouds?

Home - Education - Cloud Types - Nimbostratus Clouds

Nimbostratus Clouds Next Topic: Precipitation

A nimbostratus cloud is similar to a stratus cloud in its formless, smooth appearance. However, a nimbostratus cloud is darker than a stratus cloud, because it is thicker.

Unlike a stratus cloud, a nimbostratus cloud typically brings with it the threat of moderate to heavy precipitation. In some cases, the precipitation may evaporate before reaching the ground, a phenomenon known as virga.

Next Topic: Precipitation

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