(CNN) -- The dream of a white Christmas was turning into a nightmare for some as forecasters predicted a heavy snowstorm would continue on Friday across parts of the central United States. In Oklahoma City, Oklahoma, where snowfall totals reached about 14 inches, crews were out in full force Friday trying to clear roads, move abandoned cars and rescue motorists, CNN affiliate KOCO-TV in Oklahoma City reported. Officials told KOCO some motorists were still trapped Friday and likely spent the night in their vehicles, though hundreds were rescued and taken to shelters. Forecasters predicted more snow for areas already covered by heavy snowfall Thursday.
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NEW: Interstate-94 closed from Iowa border to Canadian border because of storm
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Five Oklahomans killed during storm that dumped 14 inches, CNN affiliate KWTV reports
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Blizzard warnings issued Friday for several counties in Minnesota
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National Weather Service says Duluth, Minnesota, may get 2 feet of snow
In 106 years, residents of @placeholder have awakened to snow six times on Christmas morning, CNN's Sean Morris said.