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.

The updated forecast on timing and track of the storm calls for the snow to end from southwest to northeast as midnight approaches. “The heaviest precipitation looks to occur between roughly 4 and 9 p.m. during which time snowfall rates could reach or exceed 1 inch per hour,” the National Weather Service said.

The Lehigh Valley is under a winter storm warning Sunday for 4-8 inches of snow. Here’s when it will start and what to expect.