Winter Storm Janus is expected to dump heaps of snow across the Midwest and the East Coast Tuesday.
"It's a major winter storm for the northeast," The Weather Channel's winter weather expert Tom Niziol said. The storm is expected to affect about 56 million people and bring more than half a foot of snow to some areas, Weather.com reported.
Though the storm isn't expected to drop temperatures as low as those seen during the polar vortex earlier this month, it will leave temperatures 10 to 25 degrees below average, CNN reported. Strong winds and a wintry mix are expected to make temperatures feel even colder.
Airports from New York City to Washington, D.C., canceled up to a third of scheduled flights Tuesday morning, while Chicago O'Hare International Airport canceled about 5 percent of its flights on account of the storm, according to Flightaware.com. Southwest Airlines at Philadelphia International Airport arranged to adjourn operations by 3 p.m., local CNN affiliate WPVI reported.
Many schools anticipated the winter blast by canceling classes before the snowflakes could start falling. Multiple school districts in Pennsylvania, New Jersey, Connecticut, Virginia, West Virginia and Kentucky already have canceled classes or are sending students home early, USA Today reported.
Though most areas the storm covers are expected to get snow, the hardest-hit areas are expected to include Massachusetts.
"The greatest totals are likely for southern New England, and gusty winds are likely in this area to accompany the snow," National Weather Service meteorologist David Hamrick told USA Today.
However, areas from Boston to Philadelphia could see 6 to 10 inches of the white stuff, according to The Weather Channel.
The federal government already has closed in D.C., requiring only emergency employees to come into work Tuesday on account of hazardous driving conditions, NBC News reported.
Eighteen states have declared energy emergencies in anticipation for the winter storm and have loosened restrictions related to propane transportation, NBC said.
Even though the snow is expected to move to the Atlantic Ocean by Wednesday afternoon, plunging temperatures and another winter mix brewing will give little relief to those affected by the storm, according to NBC and The Weather Channel: Another surge of cold air is on the way Friday.