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

S 15kt
2-3ft
High: 50 °F
Tonight

S 15kt
2-3ft
Low: 43 °F
Wednesday

SE 15kt
4ft
High: 49 °F
Wednesday
Night
SE 20kt
7-8ft
Low: 45 °F
Thursday

WSW 10kt
6-7ft
High: 53 °F
Thursday
Night
WSW 15kt
5-6ft
Low: 44 °F
Friday

WSW 10kt
5ft
High: 50 °F
Friday
Night
S 10kt
4-5ft
Low: 44 °F
Saturday

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: 7:21 am EDT Apr 24, 2018
Forecast Valid: 9am EDT Apr 24, 2018-6pm EDT Apr 30, 2018

View Nearby Observations

Detailed Forecast

Synopsis: ANZ100-250115- 715 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:

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.
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.