The National Weather Service has issued a Blizzard warning for Long Island. Whiteout conditions are expected Sunday night through Monday morning.

10 to 15" of snow is expected on Long Island with isolated reports up to 20" possible in heavier bands of snow.

Wind driven snow will bring damage to trees and powerlines Sunday night and Monday. Winds will gust 30 to 40 mph during this time.

Major travel delays are expected all day Sunday and Monday. The storm is coming in from the south so this will likely delay flights at all major airports starting Sunday morning, before the weather deteriorates locally. Conditions improve Monday evening, but the effect on travel likely will linger into Tuesday.

Coastal Flooding will be an issue with this storm during the high tide cycles on Sunday night through Monday afternoon. 1ft to 2.5 ft innudation is possible.

Sunday morning will be mostly cloudy with scattered wintry mix. Some roads may be snow covered by noon, but generally light snow is expected in the morning. Conditions deteriorate Sunday after 4PM and blizzard / near blizzard conditions are expected 9PM Sunday through Monday morning.

Stray snow showers could linger into Monday afternoon, but the bulk of the snow from this storm will fall overnight Sunday into Monday morning.

Pleasant weather is expected today with highs in the mid 40s. A few rain drops arrive overnight and could mix in with snowflakes Sunday morning. Conditions are manageable early Sunday.