MNN Galleries

9 ominous images of roll clouds

By: Russell McLendon on Aug. 5, 2011, 11:50 a.m.
9 of 11

Lubbock, Texas

This sinister-looking roll cloud found a willing audience as it passed over the National Weather Service offices in Lubbock, Texas, on the morning of Sept. 25, 2007. It was one of several bands of roll clouds that moved through the Lubbock area between 6 and 8 a.m. that day, as a cold front pushed south across West Texas.