Parts of the U.S. and Canada have already been gripped by extreme weather, with thick snow and devastating blizzards causing chaos for hundreds of thousands of people.
As the temperature plummets, Further Snowstorm Forecastresidents are bracing for further devastation.
Below are some images taken in some of the hardest-hit areas.
Aerial view near the 1901 Pan American Exposition in Buffalo, New York
A man clears snow in Amherst, Western New York
Plowed snowdrifts in Buffalo, New York
A Jeep caught fire while plowing a road in Buffalo
Lake Michigan waves cover frozen shops
Ice from the waves of Lake Erie covers a restaurant during a winter storm in Hamburg, New York
Perry, 6, and Theo, 6, ski on a snowdrift in Buffalo, New York
A man wrapped in a blanket walks through the snow-covered streets of St. Louis, Missouri
Collapsed gas station in Buffalo, New York
Crew de-ices Southwest Airlines plane before takeoff in Omaha, Nebraska
A man uses a snow blower to clear snow from a sidewalk in Buffalo, N.Y.
Vehicles involved in multiple collisions near London, Ontario, Canada
Pedestrians cross snow-covered downtown streets in Des Moines, Iowa
An abandoned car on the street in Buffalo, New York
Rob Keeling and his 13-year-old son Blake snowmobile in a ditch near Huxley, Iowa
A New York Army National Guard soldier uses a plow to clear snow from a parking lot in Cheektowaga, New York
A man brings a propane tank and heater to a friend after a winter storm in Buffalo, New York