Severe weather batters Midwest

OKLAHOMA CITY (AP) -- Twisters, flooding and snow.

The nation's midsection is getting battered with some fierce weather.

Snowy roads in Minnesota are blamed for a fatal accident, with up to 8 inches of accumulation forecast for the Twin Cities area.

In Colorado, falling snow led to an estimated 75-vehicle pileup near Vail Pass, that killed one driver and injured others.

Chicago is contending with heavy rain that's caused hundreds of flight delays.

Meanwhile, in southwest Missouri, officials say they think one or two tornadoes may have touched down, causing significant damage.

The National Weather Service is confirming a tornado ripped the roof off a home in Oklahoma's northern Oklahoma County. Heavy rains in that area, almost 4 inches, are causing street flooding.