Severe Weather and Heavy Rainfall Potential for the East; Active Weather Continues for the West

Strong Pacific storm will continue to bring heavy precipitation and strong winds across the western U.S. today. Across the east, the chance for strong to severe thunderstorms later today as low pressure tracks eastward. This system could redevelop into a coastal storm for the mid-Atlantic and Northeast corridors into Tuesday.
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Gray/Portland, ME Local Forecast Office

9NM ESE Portsmouth NH

Marine Point Forecast

[NOTICE]
  • Tonight

    Rain

    NE 35km/h
    1m

    Low: 11 °C

  • Tuesday

    Rain

    Winds IncreasingNE 50km/h
    1-2m

    High: 14 °C

  • Tuesday
    Night

    Rain

    Winds IncreasingNNE 70km/h
    2m

    Low: 9 °C

  • Wednesday

    Rain

    NNE 65km/hWinds Decreasing
    2m

    High: 12 °C

  • Wednesday
    Night

    Mostly Cloudy

    NNE 45km/hWinds Decreasing
    1-2m

    Low: 9 °C

  • Thursday

    Partly Sunny

    NNE 35km/hWinds Decreasing
    1m

    High: 12 °C

  • Thursday
    Night

    Partly Cloudy

    NNE 25km/h
    1m

    Low: 9 °C

  • Friday

    Mostly Cloudy

    ENE 25km/h
    1m

    High: 12 °C

  • Friday
    Night

    Chance Showers

    E 30km/h
    1m

    Low: 11 °C


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 7:04 pm EDT Oct 25, 2021
Forecast Valid: 8pm EDT Oct 25, 2021-6pm EDT Nov 1, 2021

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Detailed Forecast


Synopsis: ANZ100-261315- 703 PM EDT Mon Oct 25 2021 .Synopsis for Stonington ME to Merrimack River MA out to 25 NM... Low pressure developing over the upper Ohio Valley will allow for an increase in northeasterly winds in the Gulf of Maine tonight, gradually strengthening further through Tuesday and Tuesday night. Beyond this the forecast grows uncertain but low pressure, strong northeasterly flow, and rainy conditions likely continue through Wednesday. Winds and seas gradually subside later in the week. $$

Tonight
NE wind around 35 km/h, with gusts as high as 50 km/h. Rain, mainly after 2am. Patchy fog. Seas around 1 m.
Tuesday
NE wind 35 to 40 km/h increasing to 45 to 50 km/h in the afternoon. Winds could gust as high as 65 km/h. Rain. Patchy fog before noon. Seas 1 to 2 m.
Tuesday Night
NNE wind 65 to 68 km/h increasing to 67 to 70 km/h in the evening. Winds could gust as high as 90 km/h. Rain. Seas around 2 m.
Wednesday
NNE wind 60 to 65 km/h decreasing to 45 to 50 km/h. Winds could gust as high as 80 km/h. Rain, mainly before 1pm. Seas around 2 m.
Wednesday Night
NNE wind 40 to 45 km/h decreasing to 35 to 40 km/h after midnight. Winds could gust as high as 60 km/h. Mostly cloudy. Seas 1 to 2 m.
Thursday
NNE wind 30 to 35 km/h decreasing to 25 to 30 km/h in the afternoon. Winds could gust as high as 50 km/h. Partly sunny. Seas around 1 m.
Thursday Night
NNE wind around 25 km/h, with gusts as high as 35 km/h. Partly cloudy. Seas around 1 m.
Friday
ENE wind around 25 km/h, with gusts as high as 40 km/h. Mostly cloudy. Seas around 1 m.
Friday Night
E wind around 30 km/h, with gusts as high as 45 km/h. A chance of showers. Seas around 1 m.

*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: 42.99°N 70.62°W
Last Update: 7:04 pm EDT Oct 25, 2021
Forecast Valid: 8pm EDT Oct 25, 2021-6pm EDT Nov 1, 2021
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