Snow was falling in the Mid-Atlantic and New York City on Sunday. The coldest air in several years will descend across much of the country starting Monday, forecasters said.

The northern Gulf Coast is bracing for a blast of arctic air and a powerful winter storm early next week, bringing dangerously cold temperatures, icy conditions, and snow. The cold air will begin arriving late Sunday,

New York, New Jersey and Connecticut are under winter storm warnings today as the entire region braces for snow. Tri-State Area officials have been issuing warnings and discussing the states' preparations in the days leading up to the storm.

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.