An impressive shelf cloud formation was seen over much of Hampton Roads late on Saturday afternoon. That might have people wondering what exactly causes these visually stunning clouds. A shelf ...

Shelf clouds are the low, horizontal formations that often precede a thunderstorm, hanging ominously like a vast shelf in the ...

A Canadian captured a timelapse of a shelf cloud formation slowly moving over Newfoundland. Ariel footage shows the stolen work truck crashing into multiple vehicles while attempting to evade ...