Have travel plans? Prepare for cold rain and snow

Cold air throughout the week in Pacific Northwest

A satellite graphic of an arctic air mass, December 11, 2016 (NWS)
A satellite graphic of an arctic air mass, December 11, 2016 (NWS)

CHICAGO (AP) — A blanket of snow will cover the Great Lakes and the Northeast ahead of an expected dip into Arctic-cold temperatures.

The wintry weather mostly moved out of the Plains early Sunday, pushing further into Wisconsin, Illinois and Indiana.

The National Weather Service said Chicago will see an additional 3 to 5 inches Sunday. Flight-tracking websites showed delayed arrivals at Midway Airport, but not O’Hare.

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Detroit could see the heaviest amount of snow Sunday, about 8 inches. To the east, Cleveland could see up to 6 inches, while Burlington, Vermont, could get up to three.

The Ohio River valley and Mid-Atlantic will see a mix of snow, freezing rain and rain.

Temperatures 15 to 30 degrees below average will follow the cold rain and snow in the coming days through much of the Midwest and East.

In the Portland region, it will be wet for the start of the week before high pressure and an east wind takes over midweek. This will lead to sunshine but cold air throughout the Willamette Valley, with temperatures topping off in the lower to mid 30s for the midweek.

The end of the week brings the potential for some cold showers and possibly snow on Friday. However, the weather models are inconsistent with the wintry precipitation.

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KOIN 6 News contributed to this report.