the ef stands for enhanced fujita in tornado.
what does the ef stand for in tornado?
enhanced fujita
on november 22, an unusually warm air mass moved over the midwest bringing the threat of severe weather to the region. at 11:35 am, a tornado watch was issued for eastern iowa, and extending into central illinois and northeastern missouri. at 3:04 pm, a tornado touched down just east of rockford, illinois. this tornado produced major damage in the area. on november 23, the national weather service in chicago went to survey the damage, and estimated that the tornado was 200 yards wide, and traveled 16.4 miles. the tornado reached gusts in excess of 135 mph, which is converted to the enhanced fujita scale as an ef2 tornado. other tornadoes occurred on this day including an ef1 tornado in union grove, wisconsin, and in walworth county, wisconsin (ef1). as the storms moved east into indiana and michigan, tornado watches were put out, but no tornado or severe thunderstorm warnings were issued. on november 24, the national weather service in chicago surveyed damage in extreme northern mchenry county in illinois. it was determined that an ef0 tornado struck there. an ef-1 tornado touched down in el dorado county, california on november 22 damaging a commercial structure, power lines, and trees.
tornadoes of 2010
schindler elevator corporation





















































schindler elevator corporation is the american division of schindler group, and traces its origins back to 1869 with the establishment of the haughton elevator company and 1928 with the founding of the westinghouse elevator division.





















































section::::history.





















































nathaniel haughton purchased an interest in the toledo steam engine works, a small foundry and machine shop founded in 1865 by cooke, kneiser & groff. the firm produced steam engines, mill equipment and general machinery, and by 1880, had become active in the manufacture of elevator equipment.
schindler elevator corporation