Jewel Stone Plus is the ultimate in acrylic modified cement finishing, combining the original strength of Jewel Stone with the flexibility of polymer modifiers, thus enabling the resurfacing of ceramic tile, linoleum, or as the finished surface of DuROCK EIFS or stucco.
Quick Answer. Tornadoes can last from a few seconds to over an hour, although most last less than 10 minutes. They form from mesocyclones, which are areas of organized rotation within supercell thunderstorms. Scientists still don't know why some mesocyclones become tornadoes and some do not.
More about the power of tornadoes: 1  Tornado Alley encompasses the eastern section of South Dakota, eastern Colorado, Nebraska, Kansas, Oklahoma and northern Texas. 2  One of the deadliest tornadoes in recorded history was the Tri-State Tornado of 18 March 1925. The tornado traveled a total of 219 miles, killing 695 people in Illinois, Missouri and Indiana. Although Oklahoma City holds the record for the most tornadoes, tiny Codell, Kansas, holds the distinction of being struck on the same date for three consecutive years, with tornadoes occurring on 20 May of 1916, 1917 and 1918.