Heavy Rain and Severe Thunderstorms Possible in the Lower Mississippi Valley & Southeast

A few severe thunderstorms are possible over Texas, the lower Mississippi Valley, and Southeast into Sunday. Locally heavy rainfall and flash flooding may also occur in these areas. Elsewhere, rain and higher elevation snow will develop from Idaho into western Montana by Sunday evening, followed by cooling temperatures and a changeover to snow for most of the northern Rockies by Monday.
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Gray/Portland, ME Local Forecast Office

18NM S Portland ME

Marine Point Forecast

[NOTICE]

Overnight

NW 10kt
1-2ft
Low: 35 °F
Sunday

NW 10kt
1ft
High: 49 °F
Sunday
Night
Light Wind
1ft
Low: 37 °F
Monday

S 10kt
1ft
High: 48 °F
Monday
Night
SW 10kt
2ft
Low: 40 °F
Tuesday

S 15kt
2ft
High: 51 °F
Tuesday
Night
SSW 15kt
3-4ft
Low: 44 °F
Wednesday

SSE 10kt
2-3ft
High: 49 °F
Wednesday
Night
ESE 10kt
5-6ft
Low: 44 °F

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 6:46 pm EDT Apr 21, 2018
Forecast Valid: 11pm EDT Apr 21, 2018-6pm EDT Apr 28, 2018

View Nearby Observations

Detailed Forecast

Synopsis: ANZ100-221615- 1007 PM EDT Sat Apr 21 2018 .Synopsis for Stonington ME to Merrimack River MA out to 25 NM... High pressure builds in for Sunday with sunny and warmer weather continuing into early next week. Low pressure will move north from the Carolinas Wednesday and will move into the Gulf of Maine Thursday. $$

Overnight

NW wind 5 to 10 kt. Clear. Seas 1 to 2 ft.

Sunday

NW wind around 10 kt becoming SW in the afternoon. Sunny. Seas around 1 ft.

Sunday Night

Variable winds 5 kt or less. Clear. Seas around 1 ft.

Monday

WSW wind 5 to 8 kt becoming S 7 to 10 kt in the afternoon. Sunny. Seas around 1 ft.

Monday Night

SW wind around 10 kt. Mostly clear. Seas around 2 ft.

Tuesday

S wind 10 to 15 kt. Sunny. Seas around 2 ft.

Tuesday Night

SSW wind 10 to 15 kt. Mostly cloudy. Seas 3 to 4 ft.

Wednesday

S wind around 10 kt becoming SE in the afternoon. Rain likely. Seas 2 to 3 ft.

Wednesday Night

ESE wind around 10 kt becoming E after midnight. Rain likely. Seas 5 to 6 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.