Periods of light to moderate snow will continue to lead to light accumulations through 6 p.m. The snow is still on track to be a historic event for Long Island. A total of 16 to 24 inches of snow is expected across the Island, which would rival some of the biggest blizzards on record.

One of the things we are watching for now is how the storm is actually developing versus what has been forecasted. This will help us pinpoint exactly where the heaviest snow banding will be. The computer models give a good idea of where this may happen, but until the storm continues to track northeast, develop and strengthen further, we won't know the exact locations of that heaviest banding. If the heaviest banding occurs more south and east, expect the lower end of our forecast totals range - possibly even slightly lower than forecast. If the heaviest banding is right over parts of Long Island, the amounts closer to two feet will be realized more widespread across Long Island. Stay with us for important updates on this all night.

A blizzard warning for Long Island is in effect from now through 6 p.m. Monday.

Visibility of less than a quarter of a mile, winds gusting up to 55 mph, gusts over the East End at 70 mph and heavy blowing snow are expected to make travel near impossible and life-threatening Sunday night through Monday morning. Do not attempt to travel, especially if you are a non-essential worker.

Sixteen to 24 inches of snow is still expected on Long Island as heavy bands of snow are anticipated to develop after 7 tonight through 6 a.m. Monday. Snowfall rates could be 1 to 4 inches per hour.

Wind-driven snow will bring damage to trees and powerlines overnight into Monday morning. Winds will gust 35 to 55 mph during this time with a few gusts to 70 mph over the East End.

Major travel delays are expected Sunday night into Tuesday. High snow amounts and blowing and drifting snow as high as 5 feet, and it will take time to remove all of the snow to make the roads safe.

Coastal flooding will be an issue with this storm during the high tide cycles between 10 p.m. and 6 a.m. Sunday into Monday and 1 to 6 p.m. Monday. One to 3 feet of inundation is possible. Cars should already be moved in these areas.

Sunday night: Blizzard conditions. Snow, heavy at times. Areas of blowing snow. Dangerous travel. Stay off the roads. Lows 28 to 32. Wind chill values between 15 and 20. Windy with a northeast wind 25 to 35 mph. Winds could gust as high as 55 mph, some gusts over the East End could be 60 to 70 mph. Power outages likely. New snow accumulation of 13 to 19 inches possible. Coastal Flood Warning from 10 p.m. to 4 a.m. Move your cars in anticipation of potential moderate to major flooding.

Monday: Blizzard conditions. Dangerous travel conditions. Stay off roads. Snow, mainly before 4 p.m. The snow will be heavy at times. Areas of blowing snow. High near 33. Wind chill values between 15 and 20 degrees. Windy, with a northwest wind 30 to 45 mph decreasing to 25 to 30 mph in the afternoon. New snow accumulation of 4 to 8 inches possible.

Monday night: A few early snow showers. Cloudy, then gradually becoming partly cloudy, with a low around 21. Wind chill values between 10 and 15. Blustery, with a northwest wind 15 to 25 mph, with gusts as high as 35 mph.

Tuesday: Mostly sunny, with a high near 30. West wind 10 to 20 mph.