The National Weather Service issued a winter storm warning at 3:08 a.m. on Sunday valid from 1 p.m. until Monday 4 a.m. for Bergen County.

A polar vortex is slated to sweep most of the continental US bringing winter storm warnings and a hazardous freeze to millions.

On Sunday at 1:42 a.m. the National Weather Service issued a winter storm warning valid from 1 p.m. until Monday 7 a.m. for Norfolk and Suffolk counties.

The National Weather Service has issued winter storm warnings and winter weather advisories for 15 New Jersey counties.

The snow is likely to fall on Sunday from the Appalachians to New England. New York City may see its largest snowfall in years.

: Winter storm warnings issued for 8 counties expecting heavy snow Sunday MORE: Up to 10 inches of snow in possible ‘bomb cyclone’ winter storm Winter storm watches have been issued for eight counties in northern New Jersey as the state braces for a weekend storm system that could drop as much as 6 to 10 inches of snow in some areas and create dangerous road conditions across the region

Southeast Texas residents should prepare for the most significant winter weather event in years, as freezing-cold temperatures and a winter storm are expected to hit the Houston area over the next several days.

On Saturday at 2:37 p.m. the National Weather Service issued a winter storm warning valid for Sunday between 4 a.m. and 10 p.m. for Franklin, Perry, Dauphin, Lebanon, Cumberland, Adams, York and Lancaster counties.

From New Orleans to the northshore to Baton Rouge to Lafayette, snow is looking more and more likely as a winter storm moves through the area. "The ceiling for this event could be something astonishing.

Electric Reliability Council of Texas (ERCOT) told Newsweek: "ERCOT has issued a Weather Watch from January 20-23 due to predicted extreme cold weather across the ERCOT region, higher electrical demand, and the potential for lower reserves. Winter precipitation is also expected across parts of the state.

A winter storm will affect New York and the surrounding area starting Sunday. From 1 p.m. Sunday to 4 a.m. Monday, the tri-state area is expected to be hit with snow, according to the National Weather Service.

On Saturday at 2:33 p.m. the National Weather Service issued a winter storm warning valid from Sunday 1 p.m. until Monday 7 a.m. for Northern Worcester and Southern Worcester as well as Franklin, Middlesex,