Shelf clouds typically form along the leading edge of a thunderstorm. As the storm pushes out cool air in a downdraft, it ...

STATEN ISLAND, NY. — Rain brings the threat of flooding for the morning and evening rush hours on Friday on Staten Island and ...

SIOUX CITY -- When skies are filled with menacing storm clouds this spring and summer, don't expect to see local emergency workers chasing after storms like in the "Twister" movies. Instead ...

The tornado, which formed just northwest of Matador, Texas, was a sight to behold. Dark, menacing funnel clouds twisted ominously against the stormy sky, throwing debris into the air as it roared ...