NEW YORK — Millions along the Interstate 95 corridor on the Northeast coast will see their first significant winter storm of the season this weekend, as a fast-moving system takes advantage of freezing temperatures brought by another invasion of the polar vortex .

A system expected to drop 6 inches of snow or more from Pennsylvania to Maine could tie up the Tuesday evening commute, the National Weather Service says.

A lake-effect snow warning and winter weather advisory are now in effect across Northeast Ohio as heavy snow, blowing snow and poor visibility threaten travel throughout the weekend.

Periodic snowfall rates of more than an inch per hour are likely, resulting in totals of 5 to 10 inches with locally higher amounts possible.

The US Department of Transportation declared a regional emergency as cold weather and a November electrical outage at a Pennsylvania industrial complex disrupt heating-fuel markets.

A winter storm will deliver a punch of snow to millions in the Northeast after it dumps more white stuff on the snowy Midwest.

Widespread, steady system snow that developed Saturday afternoon will start to taper off from west to east across Northeast Ohio Saturday evening.

Hazardous winter weather was expected through early Wednesday, according to forecasters. The storm had dropped a wintry mix of precipitation across the Midwest overnight.

NEW YORK - Snow is still falling across New York City, New Jersey and southern Connecticut this Sunday morning, with several inches of accumulation expected to continue as winter weather advisories remain in place.

As a major snowstorm exits the Northeast, major airports and cities are seeing an impact with delays, cancellations and power outages on Sunday.