Stormy Weather Along the East Coast; Extended Warm-up for the West

A strong low pressure system will bring heavy rain, gusty winds, and thunderstorms along the east coast. Isolated severe thunderstorms could produce damaging winds and a few tornadoes in the Southeast. Heavy rains may result in excessive runoff and flash flooding. Building high pressure out west will produce above normal temperatures, especially, in the Pacific Northwest.
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Gray/Portland, ME Local Forecast Office

25NM ENE Portsmouth NH

Marine Point Forecast

[NOTICE]
  • Today

    Sunny

    S 15kt
    2-3ft

    High: 50 °F

  • Tonight

    Chance Rain

    S 15ktWinds Decreasing
    2-3ft

    Low: 43 °F

  • Wednesday

    Rain

    Winds IncreasingSE 15kt
    Waves Building4ft

    High: 49 °F

  • Wednesday
    Night

    Rain

    SE 20ktWinds Decreasing
    7-8ft

    Low: 45 °F

  • Thursday

    Showers Likely

    WSW 10kt
    6-7ft

    High: 53 °F

  • Thursday
    Night

    Partly Cloudy

    WSW 15kt
    5-6ft

    Low: 44 °F

  • Friday

    Chance Rain

    WSW 10kt
    5ft

    High: 50 °F

  • Friday
    Night

    Chance Rain

    S 10kt
    4-5ft

    Low: 44 °F

  • Saturday

    Chance Showers

    S 10kt
    4-5ft

    High: 50 °F


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 9:36 am EDT Apr 24, 2018
Forecast Valid: 11am EDT Apr 24, 2018-6pm EDT Apr 30, 2018

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Detailed Forecast


Synopsis: ANZ100-250345- 936 AM EDT Tue Apr 24 2018 .Synopsis for Stonington ME to Merrimack River MA out to 25 NM... High pressure shifts east into the Atlantic today, while low pressure develops over the Carolina coast, moving northward toward New England on Wednesday. As the low moves through northern New England on Thursday it will send a cold front eastward across the Gulf of Maine with high pressure building behind it through Friday morning. The next low may track up the East Coast and toward the Gulf of Maine as early as Friday night with a stronger cold front arriving on Saturday. $$

Today
S wind 10 to 15 kt, with gusts as high as 25 kt. Sunny. Seas 2 to 3 ft.
Tonight
S wind 12 to 15 kt decreasing to 10 to 13 kt after midnight. Winds could gust as high as 25 kt. A chance of rain after 4am. Seas 2 to 3 ft.
Wednesday
SE wind 10 to 13 kt increasing to 12 to 15 kt in the afternoon. Winds could gust as high as 25 kt. Rain, mainly after 8am. Patchy fog between 11am and 4pm. Seas 2 ft building to 4 ft.
Wednesday Night
SE wind 15 to 20 kt decreasing to 10 to 15 kt after midnight. Winds could gust as high as 30 kt. Rain. Patchy fog after 8pm. Seas 7 to 8 ft.
Thursday
WSW wind 5 to 10 kt. Showers likely, mainly before 8am. Areas of fog before 1pm. Seas 6 to 7 ft.
Thursday Night
WSW wind 10 to 15 kt. Partly cloudy. Seas 5 to 6 ft.
Friday
WSW wind around 10 kt becoming S in the afternoon. A chance of rain. Seas around 5 ft.
Friday Night
S wind 5 to 10 kt. A chance of rain. Seas 4 to 5 ft.
Saturday
S wind 5 to 10 kt. A chance of showers. Seas 4 to 5 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: 43.18°N 70.24°W
Last Update: 9:36 am EDT Apr 24, 2018
Forecast Valid: 11am EDT Apr 24, 2018-6pm EDT Apr 30, 2018
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