( CNN ) -- Wicked weather dominated much of the American Midwest and westward on Friday . A tornado laden storm shocked the people of Wayne , Nebraska , as afternoon turned to evening . The National Weather Service reported Saturday , based on a preliminary assessment , that the Wayne twister produced EF-4 damage -- which means it likely carried gusts of between 166 and 200 mph . A few people sustained minor injuries , but luckily no one was killed , said mayor Ken Chamberlain . The storm produced one or several tornadoes , officials said , that touched down in five spots . Louisville flooding : Knee-deep water could get worse . `` The primary damage is mostly in the industrial area of Wayne , '' Chamberlain said . `` Approximately 10-12 houses were destroyed but everyone is accounted for and safe . '' The storm flipped cars , trapping motorists and ruptured a natural gas line in Wayne , the state 's emergency management agency said . `` Hazmat is on the scene dealing with the gas leakage , '' said spokeswoman Jodie Fawl . The American Red Cross is sending teams to the scene , said Liz Dorland of the agency 's Nebraska/Southwest Iowa regional chapter . The agency is `` working with local authorities and emergency management to see what the needs are and ( to ) respond as needed , '' she said . Fifteen people injured by the storm were taken to Providence Medical Center in Wayne , hospital spokesperson Sandra Bartling said . No deaths from the tornado had been reported , officials said . Farther west , in Rapid City , South Dakota , and in eastern Wyoming , a winter storm caused locals to take cover . Half the approximately 60,000 residents of Rapid City were without power as of Friday evening , said Jerry Reichert , a battalion chief with the Rapid City Fire Department . Reichert said firefighters responded to reports of several people stuck in the road because of the weather . At least one tree landed on the roof of a home on Friday , but Reichert said he was not aware of any fatalities or injuries as of Friday evening . In the morning , Rapid City police issued a `` no travel '' advisory for the city . They described conditions as `` deteriorating quickly '' and warned travelers that visibility was `` at about a quarter-mile . '' Police also warned that `` thick slush on the roads is causing vehicles to hydroplane . '' Tropical Storm Karen weakens . In Wyoming , road closures also dominated travel . A dispatcher for the Wyoming Highway Patrol said the majority of Interstate 25 in the state had been shut because of bad weather . A small stretch in the middle of the state , around Casper , remained open , but it was restricted to necessary travel , the dispatcher said . Dave Kingham , a spokesman for the Wyoming Department of Transportation , said Interstate 80 westbound between Laramie , Wyoming , and Cheyenne , Wyoming , was closed after an early evening accident . On the eastbound side of that same stretch , Kingham said , the `` chain law '' was in effect . That means vehicles must use chains or snow tires to travel the interstate legally . On average , Kingham said , the closed stretch of I-80 accommodates about 6,000 vehicles each day . Hidden in National Weather Service forecast : P-L-E-A-S-E-P-A-Y-U-S. CNN 's Jessica Jordan contributed to this report .
NEW : Weather service : Wayne , Nebraska , tornado produced EF-4 damage . Minor injuries but no deaths were reported there , despite the winds . Power knocked out to half the residents of Rapid City , South Dakota . Interstate 80 westbound tangled by wreck in Wyoming .