Weather Alert in Illinois

Recent Locations: Rosamond, CA   Naperville, IL   Peoria, IL  

Severe Thunderstorm Warning issued March 31 at 8:40AM CDT until March 31 at 9:00AM CDT by NWS Quad Cities IA IL

AREAS AFFECTED: Bureau, IL; Putnam, IL

DESCRIPTION: SVRDVN The National Weather Service in the Quad Cities has issued a * Severe Thunderstorm Warning for... Putnam County in north central Illinois... Southeastern Bureau County in north central Illinois... * Until 900 AM CDT. * At 840 AM CDT, a severe thunderstorm was located over Mark, or near Hennepin, moving east at 45 mph. HAZARD...Quarter size hail. SOURCE...Radar indicated. IMPACT...Damage to vehicles is expected. * Locations impacted include... Hennepin, Spring Valley, DePue, Granville, Ladd, Dalzell, Bureau Junction, McNabb, Putnam, Mark, Seatonville, Standard, Hollowayville, Ottville, and Florid. This includes the following highways... Interstate 80 in Illinois between mile markers 64 and 73. Interstate 180 between mile markers 1 and 3.

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