Heat Building and Strong to Severe Storms

A building ridge of high pressure will produce possible record heat and extremely humid conditions over the next several days. The summer heat wave is already present in the south Plains, will expand across the Mid-Atlantic/Northeast and then shift into the Desert Southwest. Meanwhile, a cold front may trigger strong to severe storms w/ heavy rain from the Great Lakes to the south-central Plains
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Hazardous Weather Conditions

Hazardous Weather Outlook

For More Weather Information:

Gray/Portland, ME Local Forecast Office

8NM ENE Portland ME

Marine Point Forecast

[NOTICE]

Overnight

ESE 10km/h
1m
Low: 18 °C
Sunday

SE 10km/h
1m
High: 21 °C
Sunday
Night
SE 15km/h
1m
Low: 19 °C
Monday

S 20km/h
< 1m
High: 23 °C
Monday
Night
SSW 15km/h
< 1m
Low: 19 °C
Tuesday

NNW 10km/h
< 1m
High: 24 °C
Tuesday
Night
SW 10km/h
< 1m
Low: 18 °C
Wednesday

S 15km/h
< 1m
High: 22 °C
Wednesday
Night
S 15km/h
< 1m
Low: 19 °C

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 12:39 am EDT Aug 18, 2019
Forecast Valid: 2am EDT Aug 18, 2019-6pm EDT Aug 24, 2019

View Nearby Observations

Detailed Forecast

Synopsis: ANZ100-181845- 1233 AM EDT Sun Aug 18 2019 .Synopsis for Stonington ME to Merrimack River MA out to 25 NM... A warm front will approach from the west tonight and Sunday and will lift north of the region Sunday night. Hot and humid weather will return on Monday and Monday night as a weak frontal boundary settles south through the region. Stalled frontal boundary will be the focus for showers and thunderstorms Tuesday and Tuesday night as it lifts back to the north. A stronger cold front will approach from the west on Wednesday and will slowly cross the region Wednesday night and Thursday. High pressure will build in from the west for the end of the week. && $$

Overnight

ESE wind around 10 km/h. A chance of showers, mainly before 3am. Areas of fog. Seas around 1 m.

Sunday

E wind 5 to 8 km/h becoming SE 7 to 10 km/h in the afternoon. Areas of fog. Seas around 1 m.

Sunday Night

SSE wind 10 to 15 km/h becoming ESE after midnight. A chance of showers after 9pm. Areas of fog. Seas around 1 m.

Monday

S wind 5 to 10 km/h increasing to 15 to 20 km/h. Partly sunny. Seas 1 m or less.

Monday Night

SSW wind 12 to 15 km/h becoming WSW 10 to 13 km/h after midnight. A chance of showers before 10pm. Seas 1 m or less.

Tuesday

N wind around 10 km/h becoming NW in the afternoon. Sunny. Seas 1 m or less.

Tuesday Night

SW wind 7 to 10 km/h decreasing to 5 to 8 km/h after midnight. Partly cloudy. Seas 1 m or less.

Wednesday

S wind 5 to 10 km/h increasing to 10 to 15 km/h in the afternoon. A chance of showers and thunderstorms. Seas 1 m or less.

Wednesday Night

S wind around 15 km/h becoming SW after midnight. A chance of showers and thunderstorms. Seas 1 m or less.

Winds and seas higher in and near tstms.

*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.