What Causes Tornadoes?
Sunday, June 6, 2010 - 19:31
in Earth & Climate
A tornado is a rotating column of air extending from a thunderstorm to the ground. Tornadoes are capable of 250 MPH wind speeds, cutting a swath of destruction in excess of one mile width and dozens of miles in length. If you see a dark, greenish sky or a wall cloud and hail, you might be getting a tornado. If you have something that sounds like a freight train, you definitely are. read more