An updated winter storm warning was released by the National Weather Service on Sunday at 1:33 p.m. in effect until Monday at 1 p.m. for Perry, Dauphin, Schuylkill, Lebanon, Cumberland, Adams, York and Lancaster counties.

With significant snowfall and strong winds expected across the region, many flights were canceled. New York City’s airports were among the hardest hit.

With an impending winter storm expected to bring blizzard conditions to East Coast, airlines hope travelers opt to make changes to their flight plans.

Blizzard warnings were issued Saturday for Boston, Connecticut, New York City, New Jersey and coastal communities along the East Coast as a late-winter storm set to arrive on Sunday threatened to make a mess of the start of a new week.

The storm heading for the Northeast United States could be seen from space this morning as it began to take on a comma-shaped cloud pattern, with the storm’s center just off the coast of the Carolinas.

Heavy storm warning: Heavy snow of 6 inches in 12 hours or 8 inches in 24 hours that could include sleet of a half inch or more. Ice storm warning: Ice accumulation of a quarter inch or more. Blizzard warning: Blizzard conditions for three hours or more.

A punchy nor’easter will lash the Mid-Atlantic and Northeast with heavy snow, blizzard conditions and coastal flooding on Sunday and Monday.

A blizzard warning has been issued for New York City and the surrounding area as a major snowstorm develops along the coast.

Roughly 35 million people are under blizzard warnings from Maryland to New Hampshire as a powerful winter storm threatens to bring up to 2 feet of snow and strong winds to parts of the region.