Wind, snow sweep U.S. Plains, Lake Michigan faces 20-foot waves

The National Weather Service issued blizzard warnings for eastern Colorado, northwestern Kansas and southwestern Nebraska ahead of the system, which it expected to bring gusts of 55 miles per hour (88 km per hour) and dump at least 5 inches (8 cm) of snow in some areas. "The main issue is the traffic," said Brian Warren, a National Weather Service meteorologist in Kansas.