Christmas week storm to sweep US with flooding, snow, strong thunderstorms and damaging winds
A new storm will hit the west coast on Monday before sweeping across the country. It will bring extreme weather conditions such as snowfall, violent thunderstorms and rain that can lead to flooding.
Washington and Oregon saw landslides as the storm moved through Monday afternoon and night. Oregon already had a landslide Sunday that shut down its historic Columbia River Highway.
An avalanche warning was issued from Oregon to Montana, where some areas could see up to 30 inches of snow.
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PHOTO: Flood and storm surge can be seen in Scituate, Massachusetts on December 17, 2020. (Joseph Prezioso / AFP via Getty Images)
The storm will be in the central United States by Wednesday. It will likely bring heavy snow near the Great Lakes and heavy rain with thunderstorms from the Ohio Valley to the Gulf Coast.
MORE: Cross-country Christmas storm likely to have serious effects on the east coast
Some of the thunderstorms could be severe along the Gulf Coast.
PHOTO: A new storm will bring extreme weather like snowfall, severe thunderstorms and rain that can lead to flooding, Dec. 21, 2020. (ABC News)
By Christmas Eve, the storm will find its way to the east coast with heavy rain and strong winds. Flash floods can occur.
In the south, from the Carolinas to Florida, there can be strong thunderstorms with harmful winds and a few isolated tornadoes.
A new storm will hit the west coast on Monday before sweeping across the country on December 21, 2020. (ABC News)
Behind the storm, the arctic air turns rain to snow from western New York to western Pennsylvania and West Virginia.
MORE: The coldest air of the season hits the US, a new storm is expected in Christmas week
More than half a foot of snow is possible from the upper Midwest across the Great Lakes to the Northeast.
PHOTO: Wind chill will drop below zero for the western Great Lakes and parts of the Midwest on December 21, 2020. (ABC News)
In the western Great Lakes and parts of the Midwest, wind chill will drop below zero, with teenagers stretching as far as Oklahoma and Arizona.
The Arctic explosion will shift eastwards at Christmas.
The Christmas week storm that inundated the US with floods, snow, strong thunderstorms, and noxious winds originally appeared on abcnews.go.com
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