MNN Galleries

9 ominous images of roll clouds

By: Russell McLendon on Aug. 5, 2011, 11:50 a.m.
Roll cloud in Kentucky

Photo: Scott Davidson/National Weather Service

8 of 11

Bowling Green, Ky.

Several roll clouds were spotted around central Kentucky on June 28, 2007, as a wave of scattered thunderstorms moved through the area. They signaled the arrival of a "gust front" — the cool rush of wind that often precedes a storm by several minutes.

In this case, the detached gust fronts were a false alarm, with no severe weather in tow. They still offered some memorable images, though, including this one shot by local resident Scott Davidson over Bowling Green.