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.
What To Do During A Tornado. 1  Indoors: Move to a basement or the building's lowest possible floor. 2  Outdoors: Find a ditch, depression or ravine in the ground, lie flat and cover your head. 3  In a vehicle or mobile home: Leave your vehicle or mobile home and, if possible, enter a nearby building. Indoors: Move to a basement or the building's lowest possible floor. 2  Find an interior room, hallway or stairwell â the more walls between you and the tornado, the better. 3  Stay under a sturdy piece of furniture and protect your head.