Heavy Rainfall and Flash Flood Threats Shift From Southern Plains to Lower Mississippi Valley; Elevated to Critical Fire Concerns Out West

Heavy to excessive rainfall with flash flood concerns will shift from the southern Plains into the Lower Mississippi Valley. Elevated to Critical Fire weather threats will linger through the weekend across the Great Basin and central Rockies. Finally, Major to Record river flooding will continue in portions of the Midwest and across parts of North and South Carolina this weekend.
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Hazardous Weather Conditions

For More Weather Information:

Gray/Portland, ME Local Forecast Office

25NM ENE Portsmouth NH

Marine Point Forecast

[NOTICE]

Overnight

SW 20kt
8ft
Low: 64 °F

Gale Warning
Saturday

W 20kt
6ft
High: 70 °F
Saturday
Night
N 10kt
2ft
Low: 52 °F
Sunday

Light Wind
1-2ft
High: 63 °F
Sunday
Night
NNE 20kt
4ft
Low: 49 °F
Monday

NE 15kt
4-5ft
High: 55 °F
Monday
Night
E 10kt
2-3ft
Low: 52 °F
Tuesday

ESE 15kt
2-3ft
High: 64 °F
Tuesday
Night
S 20kt
4-5ft
Low: 61 °F

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 12:47 am EDT Sep 22, 2018
Forecast Valid: 1am EDT Sep 22, 2018-6pm EDT Sep 28, 2018

View Nearby Observations

Detailed Forecast

Synopsis: ANZ100-221600- 1000 PM EDT Fri Sep 21 2018 .Synopsis for Stonington ME to Merrimack River MA out to 25 NM... An increasing south to southwest flow will develop in advance of an approaching strong cold front. The front will pass across the waters late tonight with north to northwest winds behind the front. High pressure builds across the waters over the weekend allowing winds to diminish and become light. && $$

Overnight

SW wind around 20 kt, with gusts as high as 35 kt. A chance of showers and thunderstorms after 2am. Seas around 8 ft.

Saturday

W wind 15 to 20 kt becoming N 10 to 15 kt in the afternoon. Mostly sunny. Seas 6 ft subsiding to 4 ft.

Saturday Night

N wind 5 to 10 kt. Mostly clear. Seas around 2 ft.

Sunday

Variable winds 5 kt or less. Mostly sunny. Seas 1 to 2 ft.

Sunday Night

SW wind 5 to 8 kt becoming NNE 15 to 20 kt. Winds could gust as high as 25 kt. Partly cloudy. Seas 1 ft building to 4 ft.

Monday

NE wind 12 to 15 kt decreasing to 10 to 13 kt in the afternoon. Winds could gust as high as 25 kt. Sunny. Seas 4 to 5 ft.

Monday Night

E wind around 10 kt. Mostly clear. Seas 2 to 3 ft.

Tuesday

ESE wind around 15 kt, with gusts as high as 20 kt. A chance of showers. Seas 2 to 3 ft.

Tuesday Night

S wind 15 to 20 kt, with gusts as high as 25 kt. Showers likely. 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.