CLEVELAND -- Storms moving through downtown Cleveland made buildings disappear into a sea of storm clouds on Monday evening.
This video, which we captured from one of our station cameras, showcases a shelf cloud.
A shelf cloud is a low, horizontal wedge-shaped cloud associated with the gust front of a thunderstorm.
The gust front is the leading edge of cool air that rushes down and out from a thunderstorm.
There are two main reasons why the air flows out of some thunderstorms so rapidly. The primary reason is the presence of relatively dry, low-humid air in the lower atmosphere. The second reason is that the falling precipitation produces a drag on the air forcing it downward.
A shelf cloud is attached to the base of the parent cloud above it. The underside of the cloud appears very turbulent and intimidating, almost boiling or wind-torn.
It should not be confused with the wall cloud. Some wall clouds rotate. Rotating wall clouds usually develop before strong or violent
Here's a look at the shelf cloud over Lorain Harbor.
Compressed version of the video
Watch shelf cloud move across Cleveland during storm May 12. Video has been compressed to show entire event in :40.