In October 1859, the U.S. military arsenal at Harpers Ferry was the target of an assault by an armed band of abolitionists led by John Brown (1800-59).
A tornado appears as a rotating, funnel-shaped cloud that extends from a thunderstorm to the ground with whirling winds that can reach 300 miles per hour. Damage paths can be in excess of one mile wide and 50 miles long. Some tornadoes are clearly visible, while rain or nearby low-hanging clouds obscure others.t is not uncommon to see clear, sunlit skies behind a tornado. 1  Tornadoes cause an average of 70 fatalities and 1,500 injuries in the U.S. each year. 2  The strongest tornadoes have rotating winds of more than 250 mph.
Most local and statewide radio, TV and cable stations will be participating in the drill. Television viewers and radio station listeners and TV viewers should hear or see a simulated tornado warning message at 1:45 p.m. This tornado drill warning should last about one minute.he reason for a 6:55 p.m. drill is that severe weather including tornadoes occurs most often between 3 and 8 p.m. The statewide 1:45 p.m. drill gives institutions, first-shift and day workers a time to practice, but it does not allow second-shift workers the same opportunity.