National Weather Service United States Department of Commerce

As system moves offshore in the east, snow develops across parts of western, southern U.S.

The system that has been bringing a mix of wintry precipitation to the Southeast and mid-Atlantic will continue to move off shore over the Atlantic on Thursday, with snow continuing from the Ohio Valley, southern Great Lakes and Appalachians through Thursday evening. Meanwhile, snow will develop over the central and southern Rockies, with rain and mountain snow across the Pacific Northwest.
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17NM E Hyannis MA

Marine Point Forecast [NOTICE]

Tonight

Chance Snow

N 10ktWinds Decreasing
3-4ft

Low: 22 °F

Small Craft Advisory
Small Craft Advisory

Friday

Mostly Sunny

NW 6kt
3ft

High: 28 °F

Small Craft Advisory
Small Craft Advisory

Friday
Night

Partly Cloudy

NW 7kt
3ft

Low: 18 °F

Small Craft Advisory
Small Craft Advisory

Saturday

Sunny

NNW 7kt
2ft

High: 27 °F

Saturday
Night

Mostly Clear

W 6kt
1-2ft

Low: 20 °F

Sunday

Slight Chc Snow

Winds IncreasingSW 8kt
1-2ft

High: 33 °F

Sunday
Night

Snow Likely

SW 11kt
2ft

Low: 30 °F

Monday

Chance Snow

WNW 16kt
2-3ft

High: 35 °F

Monday
Night

Partly Cloudy

NW 13kt
3ft

Low: 25 °F

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 5:25 pm EST Feb 26, 2015
Forecast Valid: 8pm EST Feb 26, 2015-6pm EST Mar 5, 2015

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Detailed Forecast



  • SynopsisHIGH PRES WILL BUILD IN FROM THE WEST FRI INTO SAT. THE HIGH WILL MOVE EAST OF THE WATERS ON SUN. A COLD FRONT WILL THEN CROSS THE WATERS ON MON. HIGH PRESSURE MOVES OVER THE WATERS FOR TUESDAY.

    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 N wind 5 to 10 kt becoming variable and less than 5 kt after midnight. Winds could gust as high as 20 kt. Scattered snow, mainly before 11pm. Seas 3 to 4 ft.
  • Friday NW wind around 6 kt. Mostly sunny. Seas around 3 ft.
  • Friday Night NW wind 5 to 7 kt. Partly cloudy. Seas around 3 ft.
  • Saturday NNW wind 5 to 7 kt becoming W in the afternoon. Sunny. Seas around 2 ft.
  • Saturday Night W wind around 6 kt. Mostly clear. Seas 1 to 2 ft.
  • Sunday Variable winds less than 5 kt becoming SW 5 to 8 kt in the morning. A slight chance of snow after 3pm. Seas 1 to 2 ft.
  • Sunday Night SW wind 9 to 11 kt. Snow likely, mainly between midnight and 4am. Seas around 2 ft.
  • Monday WSW wind 12 to 16 kt becoming WNW in the afternoon. Winds could gust as high as 28 kt. A chance of snow. Seas 2 to 3 ft.
  • Monday Night NW wind 11 to 13 kt, with gusts as high as 33 kt. Partly cloudy. Seas around 3 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.