prey jodee: Big storm heads east from Rockies

Snow pounded Denver, Colo., Saturday, falling at more than an inch per hour at times. Nearly 500 flights out of Denver International Airport had to be canceled. The Weather Channel's Mike Seidel reports.

By Ian Johnston, Staff Writer, NBC News

A winter storm dumped more than a foot of snow on parts of Colorado and Arizona on Saturday, causing cancellation of hundreds of flights at Denver International Airport.

The National Weather Service reported snow accumulations up to 14 inches in Colorado. At 5 p.m. MT, it said the storm was pushing out of the state but warned that blizzard conditions would be possible with strong winds until nearly midnight.

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At of 8 p.m. ET, nearly 500 flights in and out of Denver had been canceled, according to the flight tracking site flightaware.com.

Travel conditions ?will be poor? on stretches of I-70, I-80 and I-25, weather.com reported.?

The bad weather caused postponement of a Major League Soccer game: The Colorado Rapids said their game against the Philadelphia Union was pushed to Sunday.?

Blizzard conditions were possible in western Nebraska, southeast Wyoming, northwest Kansas and northeast Colorado, weather.com added.

Snow and some ice was expected in parts of Nebraska to South Dakota and northern and central Minnesota.

Thunderstorms could also hit from southern Minnesota to southern Wisconsin, and southwestward to portions of Texas.

The National Weather Service said there would be ?widespread precipitation? from the Southern Plains and lower Mississippi Valley to the upper Great Lakes region Saturday and Sunday.?

?Heavy downpours and potentially severe thunderstorms will be the main threat across the southern tier of the nation as an organized line of convection fires up along a cold front marching from the southern plains to the lower Mississippi/Tennessee valley,? it said.

More than 20 inches of snow fell on parts of New England and waves pounded the shoreline as the latest winter storm hit a region already battered several times since October. Weather Channel Meteorologist Eric Fisher reports.

The latest storm comes after New England was hit by up to two feet of snow.

That storm, which moved out to sea Friday afternoon, also brought high winds that battered Nantucket, Martha?s Vineyard, and Long Island, the Weather Channel reported.

Three seaside houses on Massachusetts' Plum Island, about 40 miles north of Boston, had to be demolished after waves undermined them, NBC Nightly News reported.?

?We also have now four more that are severely structurally compromised and a total of 12 houses posted with no occupancy,? building inspector Sam Joslin told NBC Nightly News.

The owner of one of the houses lamented his loss.

?I?ve owned the house for a long, long time,? homeowner Stephen Bandoian told?WHDH in a phone interview?from Florida. ?It was a great home, it was a great place, and now it?s gone.?

NBC News' Matt DeLuca and Gil Aegerter contributed to this report.