Strong Storm System To Impact The West

A large, strong and moist Pacific storm system will impact a good portion of the West on Friday through the upcoming weekend. Heavy rain, strong winds, heavy mountain snow and rough surf can be expected. The heavy rain may result in some flash flooding on Friday and Saturday across northern portions of California and southwestern Oregon, especially near recent burn scar areas.
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Gray/Portland, ME Local Forecast Office

20NM ENE Portsmouth NH

Marine Point Forecast

[NOTICE]
  • Overnight

    Clear

    WNW 15kt
    3ft

    Low: 31 °F

    Small Craft Advisory
    Small Craft Advisory

  • Friday

    Rain/Snow

    W 15ktWinds Decreasing
    2ft

    High: 35 °F

    Small Craft Advisory
    Small Craft Advisory

  • Friday
    Night

    Rain/Snow Likely

    Winds IncreasingNW 15kt
    1-2ft

    Low: 28 °F

  • Saturday

    Sunny

    WNW 15kt
    1ft

    High: 31 °F

  • Saturday
    Night

    Mostly Clear

    NW 15ktWinds Decreasing
    1ft

    Low: 22 °F

  • Sunday

    Sunny

    Winds IncreasingSW 15kt
    1-2ft

    High: 43 °F

  • Sunday
    Night

    Mostly Cloudy

    SW 20kt
    Waves Building5ft

    Low: 38 °F

  • Monday

    Rain

    Winds IncreasingSW 25kt
    4-5ft

    High: 50 °F

  • Monday
    Night

    Rain Likely

    SSW 20kt
    Waves Building8ft

    Low: 48 °F


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 1:07 am EST Dec 6, 2019
Forecast Valid: 4am EST Dec 6, 2019-6pm EST Dec 12, 2019

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Detailed Forecast


Synopsis: ANZ100-062230- 327 AM EST Fri Dec 6 2019 .Synopsis for Stonington ME to Merrimack River MA out to 25 NM... A weak area of low pressure will move south of the waters late today and tonight. High pressure builds over the waters over the weekend with low pressure approaching from the west early next week. && $$

Overnight
WNW wind around 15 kt, with gusts as high as 25 kt. Clear. Seas around 3 ft.
Friday
W wind 12 to 15 kt becoming SW 10 to 13 kt in the afternoon. Winds could gust as high as 20 kt. Rain and snow, mainly after 3pm. Seas around 2 ft.
Friday Night
WNW wind 5 to 8 kt becoming NW 10 to 15 kt in the evening. Winds could gust as high as 25 kt. Rain and snow showers likely, mainly before 7pm. Seas 1 to 2 ft.
Saturday
WNW wind 10 to 15 kt. Sunny. Seas around 1 ft.
Saturday Night
NW wind 10 to 15 kt decreasing to 5 to 10 kt after midnight. Mostly clear. Seas around 1 ft.
Sunday
W wind 5 to 8 kt becoming SW 10 to 15 kt in the afternoon. Winds could gust as high as 20 kt. Sunny. Seas 1 to 2 ft.
Sunday Night
SW wind around 20 kt, with gusts as high as 30 kt. Mostly cloudy. Seas 3 ft building to 5 ft.
Monday
SW wind 15 to 20 kt increasing to 20 to 25 kt in the afternoon. Winds could gust as high as 30 kt. Rain. Seas 4 to 5 ft.
Monday Night
SSW wind 15 to 20 kt becoming W after midnight. Winds could gust as high as 25 kt. Rain likely. Patchy fog. Seas 6 ft building to 8 ft.

*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.
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ABOUT THIS FORECAST

Point Forecast: 43.17°N 70.36°W
Last Update: 1:07 am EST Dec 6, 2019
Forecast Valid: 4am EST Dec 6, 2019-6pm EST Dec 12, 2019
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