Drifting snow obscures a road near Mount Joy in Lancaster County, Pennsylvania, on Wednesday, January 30. A bitter deep freeze is moving into the Northeast from the Midwest, sending temperatures plummeting and making road conditions dangerous.
Deep freeze across the US
Drifting snow obscures a road near Mount Joy in Lancaster County, Pennsylvania, on Wednesday, January 30. A bitter deep freeze is moving into the Northeast from the Midwest, sending temperatures plummeting and making road conditions dangerous.
Jacqueline Larma/AP

Updated 1704 GMT (0104 HKT) January 31, 2019

Extremely cold temperatures are spreading across the United States this week as a mammoth blast of frigid air sweeps through the Midwest and heads toward the East.

More than 83 million Americans — about 25% of the US population — will suffer sub-zero temperatures sometime between Wednesday and Monday.

Emily Pieper leads cows to the milking parlor at Metogga Lake Dairy in New Prague, Minnesota, on January 30.
Emily Pieper leads cows to the milking parlor at Metogga Lake Dairy in New Prague, Minnesota, on January 30.
Jerry Holt/AP
Firefighters in St. Paul, Minnesota, work at the scene of a house fire on January 30.
Firefighters in St. Paul, Minnesota, work at the scene of a house fire on January 30.
David Joles/Star Tribune via AP
Donna Miller walks to a bank in downtown Indianapolis on January 30.
Donna Miller walks to a bank in downtown Indianapolis on January 30.
Mykal McEldowney/IndyStar/USA TODAY NETWORK
A man walks on Chicago's North Avenue Beach as the sun rises over Lake Michigan on January 30.
A man walks on Chicago's North Avenue Beach as the sun rises over Lake Michigan on January 30.
Kamil Krzaczynski/EPA/Shutterstock
Geese huddle in the water as the sun rises at the harbor in Port Washington, Wisconsin, on January 30.
Geese huddle in the water as the sun rises at the harbor in Port Washington, Wisconsin, on January 30.
Jeffrey Phelps/AP
Pedestrians walk through a winter storm in downtown Cincinnati on January 30.
Pedestrians walk through a winter storm in downtown Cincinnati on January 30.
Albert Cesare/The Enquirer/USA Today
A woman crosses a street in Buffalo, New York, on January 30.
A woman crosses a street in Buffalo, New York, on January 30.
Lindsay Dedario/Reuters
A Newfoundland dog stands on a bench as snow flurries hit New York City on January 30.
A Newfoundland dog stands on a bench as snow flurries hit New York City on January 30.
Adam Gray/Barcroft Media/Getty Images
A warning sign is covered by ice at Clark Square Park in Evanston, Illinois.
A warning sign is covered by ice at Clark Square Park in Evanston, Illinois.
Nam Y. Huh/AP
School buses are parked in Skokie, Illinois, on January 30. Local schools were closed for the day because of the weather.
School buses are parked in Skokie, Illinois, on January 30. Local schools were closed for the day because of the weather.
Nam Y. Huh/AP
Pastor John Steger of Grace In The City church embraces Jearline Cyrus, a homeless woman, while delivering cold-weather provisions in downtown Minneapolis on Tuesday, January 29.
Pastor John Steger of Grace In The City church embraces Jearline Cyrus, a homeless woman, while delivering cold-weather provisions in downtown Minneapolis on Tuesday, January 29.
Aaron Lavinsky/Minneapolis Star Tribune/ZUMAPRESS
The aftermath of a road accident is seen in Grand Rapids, Michigan, on January 29.
The aftermath of a road accident is seen in Grand Rapids, Michigan, on January 29.
Jason Coffelt via Reuters
Metra train tracks, seen outside of Western Avenue Station, are heated with gas-fired switch heaters on January 29. The heaters help prevent switching problems in extremely cold weather.
Metra train tracks, seen outside of Western Avenue Station, are heated with gas-fired switch heaters on January 29. The heaters help prevent switching problems in extremely cold weather.
Kiichiro Sato/AP
Pedestrians walk along Michigan Avenue in Chicago, above the frozen Chicago River, on January 29.
Pedestrians walk along Michigan Avenue in Chicago, above the frozen Chicago River, on January 29.
Kamil Krzaczynski/EPA/Shutterstock
A tour group visits the Lincoln Memorial as snow blankets Washington on January 29.
A tour group visits the Lincoln Memorial as snow blankets Washington on January 29.
Jonathan Newton/The Washington Post/Getty Images
The inscription on a business marquee reads "BURR" in Minneapolis.
The inscription on a business marquee reads "BURR" in Minneapolis.
David Joles/Star Tribune via ZUMA Wire
A cyclist braves the heavy frost in Minneapolis.
A cyclist braves the heavy frost in Minneapolis.
Kerem Yucel/AFP/Getty Images
A pedestrian stops to take a photo by the frozen Chicago River.
A pedestrian stops to take a photo by the frozen Chicago River.
Pinar Istek/REUTERS
Water vapor rises above St. Anthony Falls in Minneapolis on January 29.
Water vapor rises above St. Anthony Falls in Minneapolis on January 29.
David Joles/Star Tribune/AP
Frost covers parts of University of Minnesota student Daniel Dylla's face during a morning jog on January 29.
Frost covers parts of University of Minnesota student Daniel Dylla's face during a morning jog on January 29.
David Joles/Star Tribune/AP
A worker shovels snow off the rail switches at the Metra Western Avenue Yard in Chicago on January 29.
A worker shovels snow off the rail switches at the Metra Western Avenue Yard in Chicago on January 29.
Kiichiro Sato/AP
''They're going to call me 'wife of the frozen pants guy' in my obituary,'' joked Karla Grotting when asked about her husband Tom's annual tradition of freezing clothing for their yard in northeast Minneapolis.
''They're going to call me 'wife of the frozen pants guy' in my obituary,'' joked Karla Grotting when asked about her husband Tom's annual tradition of freezing clothing for their yard in northeast Minneapolis.
Anthony Souffle/Minneapolis Star Tribune/ZUMAPRESS.
The sun rises over the Chicago lakefront on January 29.
The sun rises over the Chicago lakefront on January 29.
Jose M. Osorio/Chicago Tribune/TNS/Getty Images
Jeremy Buckta of Manitowoc, Wisconsin, snow blows his driveway in whiteout conditions on Monday, January 28.
Jeremy Buckta of Manitowoc, Wisconsin, snow blows his driveway in whiteout conditions on Monday, January 28.
Joshua Clark/Herald Times Reporter/USA TODAY
Nathan Tearman, front, and his brother James shovel the driveway of their home in Janesville, Wisconsin, on January 28.
Nathan Tearman, front, and his brother James shovel the driveway of their home in Janesville, Wisconsin, on January 28.
Anthony Wahl/AP
Morning commuters battle the weather in Chicago on January 28.
Morning commuters battle the weather in Chicago on January 28.
Rich Hein/Chicago Sun-Times via AP
Tow-truck personnel work to remove an overturned semi on the median of Interstate 90, southeast of Rochester, Minnesota, on January 28.
Tow-truck personnel work to remove an overturned semi on the median of Interstate 90, southeast of Rochester, Minnesota, on January 28.
Joe Ahlquist/The Rochester Post-Bulletin via AP
Sarah Allen gets a faceful of snow as she clears her driveway and sidewalks with a snowblower in Flint, Michigan.
Sarah Allen gets a faceful of snow as she clears her driveway and sidewalks with a snowblower in Flint, Michigan.
Jake May/The Flint Journal via AP
City workers put up a road-closed sign in Grand Rapids, Michigan, on January 28.
City workers put up a road-closed sign in Grand Rapids, Michigan, on January 28.
Neil Blake/The Grand Rapids Press via AP
Al Ross uses a snowblower on his driveway in Minneapolis.
Al Ross uses a snowblower on his driveway in Minneapolis.
Richard Tsong-Taatarii/Star Tribune via AP
Snowplows clear Williamson Street in Madison, Wisconsin.
Snowplows clear Williamson Street in Madison, Wisconsin.
Amber Arnold/Wisconsin State Journal via AP
An icy Chicago River is seen from Adams Street on January 28.
An icy Chicago River is seen from Adams Street on January 28.
Rich Hein/Chicago Sun-Times via AP