The storm was caused by the collapse of an arctic high pressure system with a low pressure system coming through the Ohio Valley, said NWS Baltimore-Washington, DC meteorologist Dan Hofmann.
"It happens that this goes through a relatively high population area," said Hofmann. . ] Earlier, the system dumped up to 10 inches of snow on parts of the Midwest Saturday, more on the way Sunday from the Lake effect snow from the Great Lakes.
A 129-person plane was shot from a slick pioneer at Chicago's Hare International Airport on Saturday. No damage was reported on the United Airlines flight as it arrived from Phoenix, Chicago said four officials.
In Kansas, a snowplow driver was killed when the plow drove on a road shoulder and rolled over and threw him under the vehicle. It was not clear why the driver had moved to the shoulder from the roadway.
Hundreds of flights were canceled in and out of the Chicago area airports on Saturday, and when the storm moved eastern airlines, cancellation flights to the east coast. FlightAware said late on Saturday that airlines had canceled 250 flights leaving on Sunday from Boston Logan International Airport. In addition, dozens of Sunday flights were canceled from New York's John F. Kennedy International, Reagan National in Washington and Newark Liberty International in New Jersey.
Some residents of the Middle East did not let winter weather keep them from outside.
In downtown Detroit, Celeste Tremmel was out of training for a marathon by heavy and stable snowfall.
"When you run a marathon you run whatever the weather," said Tremmel, who plans to run marchon march in South Carolina. 19659002] Running in snow is "like running in sand, so you go much slower and it's much more work," she said. "I'm really tired … but 40 degrees, wind and hail are worse."
When the storm system moved east, the freckled Arctic air waited behind to enclose many parts of the Midwest where it had just twisted
"The air it brings down with it is very, very cold," Hofmann said. .
In Iowa, the temperature of the teenager on Saturday had fallen to zero (-17 Celsius) or lower at the end of Saturday, producing wind temperatures as low as 20-under (-29 Celsius) Sunday morning.