Nightly News   |  November 13, 2013

Beautiful roll cloud sweeps over Texas

Photos of a horizontal vortex called a roll cloud were captured by a truck driver in Texas. NBC’s Brian Williams reports.

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This content comes from Closed Captioning that was broadcast along with this program.

>>> one of the moments when mother nature chose to remind us that we are tiny and inconsequential and sometimes our job is to sit back and watch the show. beautiful pictures from texas of what's called a roll cloud . it's a horizontal vortex in the sky. for these we can thank bonnie mask, a truck driver who happened to take the day off. when a cold wind passed over her house in texas she grabbed her camera and captured the rare event.