National Weather Service United States Department of Commerce

Major nor'easter expected to bring heavy snow, blizzard conditions to Northeast

A storm system off the East Coast will continue to strengthen as it develops into a major nor'easter on Monday. As the storm moves up the coast, it is expected to bring snowfall of 1-3 feet or more to many parts of the Northeast through Tuesday evening, including New York City and Boston. Strong, gusty winds will combine with the snow to create blizzard conditions along and near the coast.
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Current Conditions

Southwest Suffolk

Zone Forecast

  • Today Periods of snow. Snow accumulation of 1 to 3 inches. Windy with highs around 30. Northeast winds 20 to 25 mph with gusts up to 35 mph. Chance of snow near 100 percent.
  • Tonight Snow in the evening...then snow with a chance of thunderstorms after midnight. Blowing snow after midnight. Snow may be heavy at times with visibility one quarter mile or less at times. Additional snow accumulation of 8 to 12 inches. Very windy with lows in the lower 20s. Northeast winds 25 to 35 mph with gusts up to 45 mph. Chance of snow near 100 percent.
  • Tuesday Snow with a chance of thunderstorms in the morning...then snow in the afternoon. Blowing snow. Snow may be heavy at times in the morning with visibility one quarter mile or less at times. Additional snow accumulation of 6 to 10 inches. Very windy with highs in the mid 20s. North winds 30 to 35 mph...diminishing to 20 to 30 mph in the afternoon. Gusts up to 45 mph. Chance of snow near 100 percent.
  • Tuesday Night Light snow...mainly in the evening. Additional light snow accumulation. Windy with lows around 17. Northwest winds 15 to 25 mph. Gusts up to 40 mph...decreasing to 30 mph after midnight. Chance of snow near 100 percent.
  • Wednesday Mostly sunny and brisk. Highs in the upper 20s. Northwest winds 15 to 20 mph. Gusts up to 30 mph in the morning.
  • Wednesday Night Mostly clear in the evening...then becoming partly cloudy. Lows 10 to 20.
  • Thursday Partly sunny. Highs around 30.
  • Thursday Night Light snow likely. Light snow accumulation possible. Not as cool. Near steady temperature around 30. Chance of snow 60 percent.
  • Friday Mostly cloudy with a chance of light snow in the morning... Then partly sunny in the afternoon. Breezy with highs in the mid 30s. Chance of snow 30 percent.
  • Friday Night Partly cloudy and brisk. Cooler with lows 10 to 15.
  • Saturday Mostly sunny. Cold with highs in the lower 20s.
  • Saturday Night Partly cloudy in the evening...then becoming mostly cloudy. Lows around 15.
  • Sunday Partly sunny. Highs in the upper 20s.