Tuesday, April 20 2010 11:21 PM EDT2010-04-21 03:21:00 GMT
31 people are in trouble with the law after a three day prostitution sting in Richmond. Police told NBC12 they targeted specific areas where residents and business owners complained about the illegal activity.More >>
Wednesday, May 22 2013 12:35 PM EDT2013-05-22 16:35:40 GMT
Investigators in York County say someone removed nearly 100 Confederate Flags from a cemetery in Clover. The incident was reported on May 20th at the cemetery beside the Bethany Church on Highway 161,More >>
Investigators in York County say someone removed nearly 100 Confederate Flags from a cemetery in Clover.More >>
Friday, May 17 2013 7:16 PM EDT2013-05-17 23:16:53 GMT
One person has died in a crash near Harrisonville, MO, Thursday evening. The crash happened on Missouri Highway 7 and Walker Road. It involved a car and a tractor-trailer. Harrisonville is in Cass County.More >>
Savannah Nash celebrated her 16th birthday last week. She died Thursday when her car slammed into a semi while she was texting during her first time driving by herself.More >>
Wednesday, May 22 2013 5:07 PM EDT2013-05-22 21:07:47 GMT
A year-end prank saw students raise a Confederate battle flag outside a Forsyth County high school. The Winston-Salem Journal reported Wednesday that the North Carolina Confederate battle flag was runMore >>
A year-end prank saw students raise a Confederate battle flag outside a North Carolina high school.More >>
A friend speaks after he and Ibragim Todashev were questioned by the FBI. The bureau stated the agent shot and killed Todashev after he posed an imminent threat. More >>
CHARLOTTE, NC (WBTV) - If you've seen pictures of yesterday's storms that rolled through portions of the Carolinas, you may have noticed some interesting clouds.
This particular picture submitted to WBTV.com (at right) gave us a great view of what is known as a shelf cloud.
We know that thunderstorms need warm, moist air to form, and these storms grow by pulling that warm air upward into the storm, where it eventually cools and condenses. Once rain starts falling from the storm, it cools the air around it, which sinks due to its higher density.
The air descends until it hits the ground, then spreads out in a circular motion away from the storm. Think of the edge of that cold air as a miniature cold front. It's more specifically known as the gust front.
As the gust front moves away from the storm, it encounters warm, moist air which rides up over the cooler air behind the front. As the warm gets cooler, eventually condenses and forms this interesting phenomenon known as the shelf cloud.
Since it requires that cold air caused by rainfall, you'll only see shelf clouds in mature storms. You won't see them as they're still organizing.