Significant Snowfall for Washington Cascades and Northern Rocky Mountains

A cold front will linger for several days from the Pacific Northwest to portions of the northern Plains early this week. Cold temperatures and copious moisture will combine to produce several feet of snow into the mountain passes, with up to 4 feet of snow down to 4000 feet in the northern Rockies. Travel through mountain passes will be very difficult.

Hazardous Weather Conditions

For More Weather Information:

Taunton, MA Local Forecast Office

8NM ESE Nantucket MA

Marine Point Forecast

  • Overnight

    Chance Light Snow

    Light Wind

    Low: 28 °F

  • Monday

    Chance Rain/Snow

    Winds IncreasingSSE 7kt

    High: 43 °F

  • Monday

    Mostly Cloudy

    W 10kt

    Low: 41 °F

  • Tuesday

    Partly Sunny

    Winds IncreasingWSW 17kt
    Waves Building5ft

    High: 53 °F

  • Tuesday

    Partly Cloudy

    WNW 19kt

    Low: 40 °F

  • Wednesday

    Mostly Sunny

    WNW 20kt
    6ftWaves Subsiding

    High: 43 °F

  • Wednesday

    Partly Cloudy

    NW 18kt

    Low: 31 °F

  • Thursday

    Mostly Sunny

    NNW 14kt

    High: 35 °F

  • Thursday

    Partly Cloudy

    NW 8kt

    Low: 33 °F

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 9:39 pm EST Dec 17, 2017
Forecast Valid: 11pm EST Dec 17, 2017-6pm EST Dec 24, 2017

View Nearby Observations

Detailed Forecast

Synopsis: ANZ200-181515- 942 PM EST Sun Dec 17 2017 .Synopsis for Massachusetts and Rhode Island coastal waters... A warm front approaches tonight, then lifts north across the waters Mon. A cold front will sweep across New England and the coastal waters Tue night followed by gusty winds Wed. High pres builds across the waters Thu. Another warm front lifts north into New Eng Fri as strong low pres moves into the Gt Lakes. For information on possible hazardous weather beyond the 24-36 hour forecast period, please visit and follow the Current Hazards link above the map on the left. $$

Variable winds 5 kt or less. A chance of light snow, mainly after 5am. Seas around 2 ft.
Variable winds less than 5 kt becoming SSE 5 to 7 kt in the morning. A chance of rain and snow before 10am, then a slight chance of rain between 10am and 4pm. Seas 1 to 2 ft.
Monday Night
S wind 8 to 10 kt becoming W after midnight. Mostly cloudy. Seas 2 to 3 ft.
WSW wind 9 to 12 kt increasing to 14 to 17 kt in the afternoon. Winds could gust as high as 30 kt. Partly sunny. Seas 3 ft building to 5 ft.
Tuesday Night
WSW wind around 19 kt becoming WNW after midnight. Winds could gust as high as 34 kt. Partly cloudy. Seas 6 to 7 ft.
WNW wind 18 to 20 kt, with gusts as high as 33 kt. Mostly sunny. Seas 6 ft subsiding to 4 ft.
Wednesday Night
NW wind 15 to 18 kt, with gusts as high as 27 kt. Partly cloudy. Seas 4 to 5 ft.
NNW wind 10 to 14 kt, with gusts as high as 22 kt. Mostly sunny. Seas 2 to 3 ft.
Thursday Night
NW wind around 8 kt becoming NNE after midnight. Partly cloudy. Seas around 2 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.


  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.
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Point Forecast: 41.21°N 69.95°W
Last Update: 9:39 pm EST Dec 17, 2017
Forecast Valid: 11pm EST Dec 17, 2017-6pm EST Dec 24, 2017
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