The Cleveland NWS office captures this ominous photo of an arcus, or shelf cloud, over the city this week. PHOTO COURTESY NWS, Cleveland The Cleveland NWS office captures this ominous photo of an ...

MADISON, Wis. - Both are ominous looking clouds that are sometimes present with thunderstorms and are often confused for each other. Let's take a look at a shelf cloud, a wall cloud and discuss how ...

A former viewer who recently moved away from the Raleigh area sent us a group of photos taken by her son when some thunderstorms passed through through Cumming, GA a while back. She asked if we could ...

A dramatic cloud formation appeared in the skies of Maryland as severe thunderstorms ripped through the state. Footage showed a dark, low shelf cloud moving through the area while flash flood, ...