weird weather: 'heat burst' blasts nebraska

from ntv: Cozad residents woke this morning to a weather phenomenon as a heat burst rolled through town. Temperatures rose 20 degrees in a matter of minutes while winds reached speeds of 75 miles per hour. Many had no idea what was happening. Mike Steinwart, Cozad Street Department, said it came quickly. "No warning, not even a whistle, I thought it was a tornado. The way people explained. I thought it was a tornado, but they say it was a heat burst."