Weather service confirms 3 tornado touched down in Indiana on Sunday

INDIANAPOLIS -- The National Weather Service confirmed that three tornadoes touched down in Indiana during Sunday's storms.\nTwo of the tornadoes were in southern Indiana -- around the Lawrence County town of Mitchell and at Seymour in Jackson County -- with the other striking southeast of Lafayette in Tippecanoe County, the weather service said Tuesday. Survey teams determined that all were F1 tornadoes, with wind speeds between 73 mph and 112 mph.\nThe weather service said winds of at least 100 mph caused the significant damage in Indianapolis and the Daviess County city of Washington, about 50 miles northeast of Evansville.\nDozens of windows were blown out from a downtown Indianapolis skyscraper, which remained closed Tuesday. About 1,000 people were being kept away from their offices in the 36-story Regions Bank tower, and city officials kept surrounding streets closed as beams, broken glass and other debris dangled hundreds of feet overhead.\nA team of engineers and other experts was expected to begin evaluating the building Wednesday to develop a plan for making repairs, said Myra Borshoff, a spokeswoman for the tower's owners.\n"Safety and repair are a priority, but so is helping the tenants get back to work," she said.\nSunday night's storm wave destroyed seven homes in Washington and damaged more than 100 others.\nJohn Ogren, meteorologist in charge of the weather service's Indianapolis office, said Sunday's storm was a derecho -- a widespread and fast-moving thunderstorm complex that produces damaging straight-line winds.\n"The difficulty in surveying damage after a derecho is that often times the tornado damage is masked by the larger area of high wind damage," he said.\nNo serious injuries were reported in Indiana, but the storm wave was blamed for as many as 27 deaths across eight states.\nAlmost 500 homes and businesses were damaged or destroyed by the storms in Indiana, according to the state's Department of Homeland Security.