Marine Weather Net

Stonington ME to Port Clyde ME Marine Forecast


REST OF TONIGHT

SW
WINDS
20 - 25
KNOTS

WED

SW
WINDS
25 - 30
KNOTS

WED NIGHT

W
WINDS
25 - 30
KNOTS

THU

SW
WINDS
5 - 10
KNOTS

The Marine Weather Forecast In Detail:
ANZ150 Forecast Issued: 130 AM EST Wed Dec 17 2025

GALE WARNING IN EFFECT THROUGH THIS EVENING
Rest Of Tonight...Sw Winds 20 To 25 Kt With Gusts Up To 35 Kt. Seas 5 To 7 Ft. Wave Detail: Sw 7 Ft At 7 Seconds.
Wed...Sw Winds 25 To 30 Kt With Gusts Up To 45 Kt. Seas 7 To 10 Ft. Wave Detail: Sw 10 Ft At 8 Seconds.
Wed Night...W Winds 25 To 30 Kt With Gusts Up To 40 Kt, Becoming Nw 15 To 20 Kt With Gusts Up To 30 Kt After Midnight. Seas 6 To 9 Ft, Subsiding To 5 To 7 Ft After Midnight. Wave Detail: Sw 8 Ft At 8 Seconds, Becoming Sw 7 Ft At 8 Seconds.
Thu...Sw Winds 5 To 10 Kt, Becoming S 15 To 20 Kt With Gusts Up To 25 Kt In The Afternoon. Seas 3 To 5 Ft. Wave Detail: S 5 Ft At 9 Seconds And Sw 3 Ft At 4 Seconds.
Thu Night...S Winds Around 20 Kt With Gusts Up To 30 Kt, Increasing To 25 To 30 Kt With Gusts Up To 40 Kt After Midnight. Seas 5 To 7 Ft, Building To 7 To 10 Ft After Midnight. Wave Detail: S 7 Ft At 6 Seconds, Becoming S 10 Ft At 7 Seconds. Rain Likely After Midnight.
Fri...S Winds 30 To 40 Kt With Gusts Up To 55 Kt. Seas 9 To 13 Ft, Building To 13 To 17 Ft In The Afternoon. Wave Detail: S 13 Ft At 8 Seconds, Becoming S 17 Ft At 10 Seconds. Rain. Vsby 1 To 3 Nm.
Fri Night...W Winds 25 To 35 Kt With Gusts Up To 50 Kt. Seas 12 To 16 Ft, Subsiding To 10 To 14 Ft After Midnight. Rain Likely In The Evening With Vsby 1 To 3 Nm.
Sat...W Winds 25 To 30 Kt With Gusts Up To 45 Kt, Diminishing To 15 To 20 Kt With Gusts Up To 30 Kt In The Afternoon. Seas 9 To 13 Ft, Subsiding To 7 To 10 Ft In The Afternoon.
Sat Night...Sw Winds 25 To 30 Kt With Gusts Up To 40 Kt. Seas 6 To 8 Ft. A Chance Of Rain And Snow. Vsby 1 To 3 Nm.
Sun...Sw Winds 25 To 30 Kt With Gusts Up To 40 Kt. Seas 6 To 8 Ft. A Chance Of Rain.
Sun Night...W Winds 25 To 30 Kt With Gusts Up To 40 Kt. Seas 5 To 8 Ft.
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Area Forecast Discussion
National Weather Service Gray ME
100am EST Wednesday Dec 17 2025

Synopsis
A weak front draped through the area may bring scattered snow showers but otherwise quiet weather is expected until late Thursday. That will be when southerly winds begin to increase. Winds will continue to ramp up through Friday and gusts may be 40 to 50 mph or more at times, especially near the coast. Temperatures will also be quite warm, with readings approaching the 50s for many areas. This means that almost entirely rain is expected along and ahead of the cold front. At this time it does not look like enough rain and snowmelt to cause any significant flooding concerns. The front crosses the area Friday night and temperatures will fall into the 20s by morning. Another chance for precipitation arrives late Saturday or early Sunday, this time in the form of light snow or snow showers.

.NEAR TERM /UNTIL 6pm WEDNESDAY/... The gradual moderating trend will continue today with high temperatures into the 30s to lower 40s from north to south. A passing cold front may bring scattered snow showers to the mtns and towards the Canadian Border but otherwise it will be another dry day.

.SHORT TERM /6pm WEDNESDAY THROUGH FRIDAY/... Key Messages:

-Tranquil weather through Thursday with little to no weather related impacts.

-Rain with strong to possibly locally damaging winds late Thursday night through Friday.

-Minor nuisance flooding possible along with river rises and river ice breakup.

Discussion: Mainly clear skies are expected tonight with low temperatures falling into the teens and 20s. Mid-level ridging will remain over New England on Thursday, allowing for another dry day with high temperatures mostly into the 40s.

Clouds will then increase on Thursday night with widespread rain moving in after midnight as an area of low pressure moves across Quebec, sending a surface warm front northward across the region. This will allow for a non-diurnal temperature trend overnight with readings warming into the 40s/lower 50s by dawn on Friday. Periods of moderate to locally heavy rain will then persist through Friday morning as we sit within the warm sector before a sharp cold front crosses during the afternoon and evening. Latest ensemble means suggest most locations should receive between 0.50"-1.00" of rainfall, with locally higher amounts likely... especially in the SE facing terrain. This rain combined with anticipated snow melt will likely result in river rises and perhaps some ice breakup but other than some minor nuisance flooding from clogged storm drains/low spots, no significant flooding is expected.

Strong to perhaps locally damaging winds is the main thing to watch with this system as a stout S-SE LLJ arrives near the triple point. There is the potential for gusts between 50-60 mph across portions of the Mid-Coast with 40-50 mph elsewhere. Convective elements are possible as the cold front crosses, which would also be capable of producing locally stronger winds. Given this potential, went ahead and issued a High Wind Watch for Knox, Lincoln, and coastal Waldo counties as this is where current guidance suggests the greatest potential is for locally damaging winds.

Long Term - Friday Night Through Monday
Key Message: A return to near to below normal temps is expected this weekend into next week. There will be frequent chances for precip...but on the lighter side.

Impacts: Westerly winds Sat have the potential to gust up to 40 mph or higher. Some light snow is possible Sunday with a passing warm front.

Forecast Details: Fri night temps will continue to steadily fall behind the cold front...with the vast majority of the forecast area expected to be below freezing by sunrise. If we can clear out that may help freeze up any standing water and lead to some icy spots...but it will also be increasingly gusty behind the front and that will help to speed up the evaporation. Either way something to keep an eye on...but thankfully going into a weekend and less traveling expected in the morning.

That cold advection Sat will increase mixing depths while low to mid level westerly winds around 30 to 40 kt continue at the top of the boundary layer. I anticipate that at least for the first half of the day it will stay gusty. The NBM winds/gusts seem a little too low...so my preference is to blend in some 75th or 90th percentile NBM to bring them up.

A brief ridge crosses the region Sat...with the next wave arriving early Sun. Warm advection thru the mid levels will cross the forecast area thru midday Sun. There is lift and saturation in the snow growth zone...but it will have to overcome some pretty dry near surface air. Either way a chance of snow...tending towards likely in the higher terrain...seems fair at this range.

No significant changes were made from the NBM forecast besides the increase in winds/gusts early Sat.

Marine
Short Term
Gale force SW winds are expected through this evening for all waters except Casco Bay where gusts should remain below 35 kts. Seas will be at 6-9 ft outside of the bays with 1-4 ft in the bays. Storm force S winds are then possible late Thu night through Fri along with rain.

Long Term
Winds will continue to gradually shift from southwesterly to west northwesterly thru Sat and gales will continue for all waters thru sunrise. Winds and seas continue to diminish into the afternoon...but seas will remain above 5 ft outside of the bays thru most of the period. Another round of southwesterly winds will bring wind gusts back to SCA (Small Craft Advisory) thresholds outside the bays Sunday and remain gusty Mon.

NOAA Gray/Portland ME Office - Watches - Warnings - Advisories
ME...High Wind Watch from Friday morning through Friday evening for MEZ026>028. NH...None.

Marine
Gale Warning until midnight EST Wednesday night for ANZ150>152- 154. Small Craft Advisory until midnight EST Wednesday night for ANZ153.