Scorching Heat West and South-Central; Monsoon Threats; Areas of Heavy Rain

Excessive heat continues in the West and South-Central U.S. Temperatures heat up in the west next week with 90s and 100s north to as high as 127 in the desert. Monsoon flow also continues with threats of flash floods, dust storms, and dry thunderstorms. A low system may produce excessive rain to portions of the Middle Atlantic. Areas of heavy rain from the Gulf to the Great Lakes.
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Hazardous Weather Conditions

For More Weather Information:

Gray/Portland, ME Local Forecast Office

20NM ENE Portsmouth NH

Marine Point Forecast

[NOTICE]

Tonight

E 15kt
4ft
Low: 62 °F
Sunday

SSE 15kt
4-5ft
High: 71 °F

Small Craft Advisory
Sunday
Night
SSE 15kt
5ft
Low: 70 °F

Small Craft Advisory
Monday

S 15kt
4-5ft
High: 71 °F
Monday
Night
S 15kt
4ft
Low: 68 °F
Tuesday

S 15kt
4ft
High: 70 °F
Tuesday
Night
S 15kt
4-5ft
Low: 67 °F
Wednesday

S 15kt
3ft
High: 71 °F
Wednesday
Night
S 15kt
4-5ft
Low: 68 °F

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 3:03 pm EDT Jul 21, 2018
Forecast Valid: 6pm EDT Jul 21, 2018-6pm EDT Jul 28, 2018

View Nearby Observations

Detailed Forecast

Synopsis: ANZ100-220945- 340 PM EDT Sat Jul 21 2018 .Synopsis for Stonington ME to Merrimack River MA out to 25 NM... An area of low pressure with an associated warm front will approach from the south tonight and will lift north into the region on Sunday. A southerly warm and humid air mass will prevail behind the front early next week. $$

Tonight

E wind 10 to 15 kt becoming SE in the evening. Showers and possibly a thunderstorm, mainly after 5am. Patchy fog after 8pm. Seas 2 ft building to 4 ft.

Sunday

E wind 10 to 15 kt becoming SSE in the afternoon. Winds could gust as high as 25 kt. Showers and possibly a thunderstorm before 2pm, then a chance of showers. Some of the storms could produce heavy rainfall. Areas of fog. Seas 4 to 5 ft.

Sunday Night

SSE wind around 15 kt, with gusts as high as 20 kt. A chance of showers before 11pm, then a chance of showers after midnight. Areas of fog. Seas around 5 ft.

Monday

S wind 10 to 15 kt, with gusts as high as 20 kt. A chance of showers before 11am. The rain could be heavy at times. Areas of fog. Seas 4 to 5 ft.

Monday Night

S wind 10 to 15 kt, with gusts as high as 20 kt. Mostly cloudy. Seas around 4 ft.

Tuesday

S wind 10 to 15 kt, with gusts as high as 20 kt. Partly sunny. Seas around 4 ft.

Tuesday Night

S wind 10 to 15 kt. Partly cloudy. Seas 4 to 5 ft.

Wednesday

S wind 10 to 15 kt. Partly sunny. Seas around 3 ft.

Wednesday Night

S wind 10 to 15 kt, with gusts as high as 20 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.