National Weather Service United States Department of Commerce

Heavy lake-effect snow continues across lower Great Lakes

Another round of heavy lake-effect snow is forecast for the Great Lakes through mid-day Friday. An additional 30 inches or more could fall in some locations, on top of the impressive amounts that have fallen already. This will result in very difficult or nearly impossible travel at times in the heaviest snow bands. The snow should taper off during the morning on Friday.
Read More...

11NM ESE Nantucket MA

Marine Point Forecast [NOTICE]

Tonight

Isolated Showers

W 21kt
6ft

Low: 34 °F

Gale Warning
Gale Warning

Friday

Sunny

WNW 22kt
6ft

High: 39 °F

Gale Warning
Gale Warning

Friday
Night

Clear

NW 22ktWinds Decreasing
4-5ft

Low: 32 °F

Gale Warning
Gale Warning

Saturday

Sunny

Winds IncreasingWSW 18kt
3-4ft

High: 46 °F

Saturday
Night

Partly Cloudy

WSW 21kt
6ft

Low: 44 °F

Sunday

Partly Sunny

WSW 16kt
5-6ft

High: 53 °F

Sunday
Night

Chance Rain

Winds IncreasingSSE 17kt
3-4ft

Low: 51 °F

Monday

Rain Likely

SSE 23kt
Waves Building7ft

High: 59 °F

Monday
Night

Chance Showers

SW 19kt
7ft

Low: 53 °F

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 3:31 pm EST Nov 20, 2014
Forecast Valid: 5pm EST Nov 20, 2014-6pm EST Nov 27, 2014

View Nearby Observations

Detailed Forecast



  • SynopsisA COLD FRONT WILL CROSS THE WATERS THIS EVENING AND BE FOLLOWED BY ANOTHER SURGE OF COLD AIR AND GUSTY W/NW WINDS THROUGH FRI. HIGH PRES WILL BUILD OVER THE WATERS SAT THEN MOVE EAST ON SUN. LOW PRES MOVING OVER THE GREAT LAKES WILL BRING RAIN AND GUSTY SOUTH WINDS SUN NIGHT AND MON. THE SYSTEM WILL LIFT NE TOWARD THE CANADIAN MARITIMES ON TUE.

    FOR INFORMATION ON POSSIBLE HAZARDOUS WEATHER BEYOND THE 24-36 HOUR FORECAST PERIOD...PLEASE VISIT WWW.WEATHER.GOV/BOSTON AND FOLLOW THE CURRENT HAZARDS LINK ABOVE THE MAP ON THE LEFT.
  • Tonight W wind around 21 kt, with gusts as high as 33 kt. Isolated showers before 8pm. Seas around 6 ft.
  • Friday WNW wind around 22 kt, with gusts as high as 28 kt. Sunny. Seas around 6 ft.
  • Friday Night NW wind 19 to 22 kt decreasing to 15 to 18 kt after midnight. Winds could gust as high as 29 kt. Clear. Seas 4 to 5 ft.
  • Saturday WNW wind 12 to 15 kt becoming WSW 15 to 18 kt in the afternoon. Winds could gust as high as 27 kt. Sunny. Seas 3 to 4 ft.
  • Saturday Night WSW wind 18 to 21 kt, with gusts as high as 33 kt. Partly cloudy. Seas around 6 ft.
  • Sunday WSW wind 14 to 16 kt, with gusts as high as 30 kt. Partly sunny. Seas 5 to 6 ft.
  • Sunday Night S wind 10 to 13 kt becoming SSE 14 to 17 kt after midnight. Winds could gust as high as 24 kt. A chance of rain after 2am. Seas 3 to 4 ft.
  • Monday SSE wind 18 to 23 kt becoming SSW in the afternoon. Winds could gust as high as 30 kt. Rain likely. Seas 5 ft building to 7 ft.
  • Monday Night SW wind 15 to 19 kt, with gusts as high as 28 kt. A chance of showers. Seas around 7 ft.

SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.

*Notices:
  1. This forecast is for a single location. For safety concerns, mariners should be aware of the weather over a larger area. Forecast information for a larger area can be found within the zone forecast and the NDFD graphics.
  2. The forecast conditions at a particular point may not exceed the criteria of a Small Craft Advisory, Gale, Storm etc. These watches/warnings/advisories are issued for the entire zone in which the point resides and mariners should act accordingly.