With snow already falling in the nation's capital Saturday, updated forecasts for total snowfall jumped from 2-4 inches to 8-12 inches, CNN meteorologist Robert Shackelford said.
At least five people have died in weather-related road crashes during a snowstorm in the US.
Trees covered in snow are seen as a auto drives in Kansas City, Mo., Jan. 12, 2019, in this still image obtained from social media video.
Parts of central IL have registered record snowfalls after a winter storm struck and then lingered for much of the weekend.
State police urged IN residents not to travel if they don't have to because roads remain slick.
At St. Louis Lambert International Airport, "a winter storm has forced dozens of cancellations across all airlines at STL". The state's western mountains and foothills were hardest-hit along with the western Piedmont region and almost 1,000 state transportation workers were called out to clear ice and snow.
Several inches of heavy snow fell most of the day, blanketing the area.
"Missouri took the brunt of this storm", said a tweet Sunday evening from the National Weather Service station in Pleasant Hill, Mo., "but it was felt from the eastern Rockies all the way to the east coast!"
Virginia State Police said they responded to more than 300 traffic crashes and helped almost 200 disabled vehicles in Virginia from midnight to late Sunday afternoon.
Almost 200,000 people were without electricity in Virginia and North Carolina on Sunday morning.
In Virginia, a 73-year-old Georgia man died Saturday, reports the AP, citing state police.
25 cm are in the forecast for Washington, D.C., which finds itself in the storm's sights for Sunday.
In Kansas City ground crews spent hours clearing snow from Arrowhead Stadium ahead of a playoff between Kansas Chiefs and Indianapolis Colts.
The National Weather Service issued a winter storm warning effective through 6 p.m. ET Sunday for Washington, parts of central Maryland and northern and northwest Virginia. Governor Ralph Northam declared a state of emergency on Saturday night to help the state of Virginia prepare.
In Indiana, one person was killed in a crash on Interstate 70 in Greenfield on Saturday, according to WISH-TV. Authorities say the woman lost control while driving on a snow-covered road in rural Missouri and drifted into the path of an oncoming vehicle.
More than 450 flights across the USA had been canceled on Sunday morning, according to Flight Aware.