Storm Cancels 2,000 Flights - A severe winter storm ravaging the U.S. and affecting over 65 million people across 18 states is now heading towards the Northeast.

The severity of the blizzard has forced authorities to issue travel restrictions causing more than 2,000 U.S. flights to be canceled on Sunday. Most flights affected by the storm were those coming in and out of Chicago.

As of Monday more than 1,000 flights were still canceled.

Authorities in Chicago are expecting as much as 15 inches of snow, and as such warnings have been issued to over 9 million people in the metropolitan area that would be affected.

"The streets will stay plowed and passable so people will be safe and secure,' Chicago Mayor Rahm Emanuel said on Sunday in a news conference.

Reports indicate that the officials have distributed over 350 pieces of equipment across the city to help clear the snow off the streets - they include salt spreaders and plows.

Meanwhile, meteorologists have forecasted up to a foot of snow in parts of Michigan, Illinois, Iowa and Wisconsin.

According to CNN meteorologist Michael Guy, the blizzard is set to migrate east and bear on several major commercial areas including New York City and Boston.

"New York City could see a wintry mix of precipitation just in time for the morning commute with a possibility of sleet and ice," Guy said.

He also said Boston is scheduled to "get another round of wintery weather with new snow accumulations from 10 to 12 inches."

The severity of the impending storm has prompted New York City Mayor Bill de Blasio to warn residents about the dangers of traveling - especially those returning from Super Bowl parties.

On Monday he told reporters that "the biggest threat in this case would be ice. We would expect a lot of icing on our roads and sidewalks - up to a quarter inch of ice in some places, and a lot of that would happen in the early morning hours, so we'd want people to be very, very cautious tomorrow."