OMAHA, Neb. – A powerful winter storm that covered parts of Colorado with up to 6 feet of snow crept east across the Plains on Saturday, knocking out electricity to thousands in Nebraska as the blanket of heavy, wet precipitation downed power lines and made travel treacherous.

Nebraska got more than a foot of snow, and forecasters predicted the storm would drop several inches Saturday in central Iowa before gradually weakening as drier air mixes in and the front continues east.

In York, Neb., Denise Smart spent her Saturday running the register at a mostly empty gas station near I-80 because few people were out in the snow.

“It was loads of fun getting here this morning at 6:30,” Smart said.

While travel was difficult throughout the path of the storm, it caused the most problems in Colorado, where Interstate 70 was closed between Denver and the Kansas border until Saturday morning. More than 600 flights were canceled Friday in Denver.

All winter storm warnings expired in Colorado by Saturday afternoon.

The National Weather Service said snowfall across the Denver area ranged from 14 to 20 inches. Nearly 4 feet covered the Pinecliffe area, while there was 18 inches near Boulder and 14 inches in the capital city itself.

Ski resorts that have suffered below-normal snowfall this year welcomed the snow, but some benefited more than others. Echo Mountain near Denver received 55 inches of new snow.

The band of heavy snow stalled over central Nebraska, dumping more than 20 inches in rural McPherson County. A wide swath of Nebraska generally along Interstate 80 received 8 to 12 inches of snow on Saturday.