The majority of the deaths were associated with road accidents as freezing rain made driving conditions treacherous Monday in the Central Plains, AccuWeather reported.
The service said snow and ice would again plague road and air travel from Oklahoma to Michigan.
At Chicago's O'Hare International Airport, at least 100 flights were canceled Monday and delays averaged 45 minutes but the Chicago Tribune quoted forecasters as saying temperatures were warming slightly Tuesday.
Because of heavy ice buildup on power lines and tree branches that fell on them, as many as 600,000 homes and businesses were without power in Oklahoma and south central Kansas, The Kansas City (Mo.) Star reported.
However, AccuWeather said temperatures in Pittsburgh and Washington would reach into the 50s Tuesday, about 10 degrees above average for both cities.
That warm, moist air was also forecast to create dense fog in eastern states, the report said.
Güncelleme Tarihi: 11 Aralık 2007, 16:01