NWS Forecast for: 20NM ENE Portsmouth NH
Atlantic Ocean

Issued by: National Weather Service Gray/Portland, ME
Last Update: 9:42 pm EST Jan 17, 2019


Overnight: S wind 15 to 20 km/h increasing to 20 to 25 km/h after midnight. Winds could gust as high as 35 km/h. A chance of snow, mainly after 3am. Seas 1 m or less.

Friday: S wind 20 to 25 km/h becoming SW in the afternoon. Winds could gust as high as 35 km/h. Rain and snow likely before 1pm, then a chance of rain between 1pm and 4pm. Seas around 1 m.

Friday Night: W wind 25 to 30 km/h becoming NNW after midnight. Winds could gust as high as 40 km/h. Mostly clear. Seas around 1 m.

Saturday: N wind 22 to 25 km/h becoming N 20 to 23 km/h in the afternoon. Winds could gust as high as 35 km/h. Increasing clouds. Seas around 1 m.

Saturday Night: E wind 25 to 30 km/h increasing to 35 to 40 km/h. Winds could gust as high as 55 km/h. Snow, mainly after 9pm. The snow could be heavy at times. Seas 1 to 2 m.

Sunday: ENE wind around 50 km/h becoming NNE in the afternoon. Winds could gust as high as 70 km/h. Snow and sleet. Seas 3 to 4 m.

Sunday Night: NNW wind 50 to 55 km/h decreasing to 45 to 50 km/h after midnight. Winds could gust as high as 70 km/h. Snow likely. Seas 2 to 3 m.

M.L.King Day: NW wind around 40 km/h, with gusts as high as 60 km/h. A chance of snow showers. Seas around 2 m.

Monday Night: NW wind 37 to 40 km/h decreasing to 35 to 38 km/h after midnight. Winds could gust as high as 50 km/h. Mostly cloudy. Seas 1 to 2 m.



Marine Point Forecast: 43.17°N 70.36°W
Associated Zone Forecast which includes this point

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