Stonington ME to Port Clyde ME Marine Forecast
| Today...Nw Winds 15 To 20 Kt, Becoming W 10 To 15 Kt Late This Morning And Afternoon. Seas 2 To 3 Ft. Wave Detail: Nw 2 Ft At 3 Seconds. |
| Tonight...Sw Winds 10 To 15 Kt With Gusts Up To 20 Kt, Becoming S 15 To 20 Kt With Gusts Up To 30 Kt After Midnight. Seas 2 To 4 Ft. Wave Detail: Sw 4 Ft At 5 Seconds. A Chance Of Rain In The Evening, Then Rain After Midnight. |
| Sun...Sw Winds 15 To 20 Kt, Becoming W In The Afternoon. Gusts Up To 30 Kt. Seas 4 To 6 Ft. Wave Detail: S 4 Ft At 6 Seconds. Rain Likely, Mainly In The Morning. |
| Sun Night...W Winds 20 To 25 Kt With Gusts Up To 40 Kt. Seas 5 To 7 Ft. Wave Detail: Sw 6 Ft At 7 Seconds. A Chance Of Rain In The Evening, Then A Chance Of Rain And Snow Showers After Midnight With Vsby 1 Nm Or Less. |
| Mon...W Winds 25 To 30 Kt With Gusts Up To 40 Kt. Seas 5 To 8 Ft. Wave Detail: W 7 Ft At 7 Seconds And S 2 Ft At 10 Seconds. A Chance Of Showers In The Morning With Vsby 1 Nm Or Less. |
| Mon Night...W Winds 20 To 25 Kt With Gusts Up To 35 Kt. Seas 5 To 8 Ft. Wave Detail: W 7 Ft At 7 Seconds And S 2 Ft At 11 Seconds. |
| Tue...W Winds 15 To 20 Kt With Gusts Up To 30 Kt. Seas 4 To 6 Ft. |
| Tue Night...W Winds 15 To 20 Kt With Gusts Up To 30 Kt, Becoming Nw 10 To 15 Kt With Gusts Up To 20 Kt After Midnight. Seas 3 To 5 Ft. |
| Wed...Nw Winds 10 To 15 Kt. Seas 2 To 3 Ft. |
| Wed Night...Nw Winds 5 To 10 Kt. Seas Around 2 Ft. |
| Area Forecast Discussion National Weather Service Gray ME 1239am EST Sat Nov 15 2025 Synopsis Our next system will slice across Ontario and Quebec late today and tonight bringing widespread precipitation, but for a relatively brief period. To the north of the track some snow accumulation is likely, along the track some wintry mix including light freezing rain, and south of the track will stay mostly rain. Once precipitation moves out it will get gusty as westerly winds pick up. There will also be another round of mountain snow showers into at least Monday. High pressure moves in for the second half of next week. Near Term - Through Today A fair weather day is expected today as weak high pressure moves across New England. Mostly sunny skies will give way to increasing clouds during the afternoon as a fast-ving low pressure system approaches from the west. Highs should make it to around 40 degrees at lower elevations with 30s in the mountains. Short Term - Tonight Through Sunday A fast moving short wave trough approaches from the WNW this evening as a warm air advection pattern commences. As SFC low pressure approaches from the Great Lakes, a secondary low pressure system will form near the Maine coast overnight. The result will be widespread precipitation tonight, with various precipitation types expected. Various deterministics and ensembles have trended a little bit colder over the last few runs which may portend to a slightly longer period of wintry precipitation inland from the coast (roughly KLEW to KAUG for example) before a change to rain occurs prior to ending late tonight or early sunday morning is expected. The mountains will experience mainly snow and/or mixed precipitation. One thing the guidance does agree on is that this will be a fast moving system, with precipitation quickly moving from SW to NE tonight which should largely be out of the area Sunday morning. Winter weather advisories remain in effect for portions of the NH mountains where and snow or sleet should turn to a period of freezing rain tonight and cause for slippery travel in spots. Elsewhere, snow and sleet amounts should remain below advisory criteria. Across southern NH the main precipitation type is expected to be plain rain although some wet snowflakes and sleet may mix in initially this evening. There may be some drizzle in the dry slot Sunday morning but otherwise the measurable precipitation should be done by around 12z. However, the upper level low moves over the region in the afternoon which should keep clouds around with snow showers in the mountains and foothills. Westerly winds will become gusty during the afternoon all zones. Long Term - Sunday Night Through Friday Evening No notable changes to the long term forecast as much of next week looks seasonably cool. Monday looks breezy as low pressure stalls across the Canadian Maritimes. High pressure gradually builds in for the middle of the week. Full Discussion... Key Message: Near to below normal temps thru the extended. Generally below normal precipitation chances outside of the mtns until late in the week. Impacts: No significant weather impacts anticipated. Some more widespread wintry weather possible late next week. Forecast Details: By Sunday night we will be back in the post- frontal northwest flow. Forecast sounding show steep low level lapse rates with temps near the warm end of the dendritic growth zone. This combined with ample low level moisture should result in plenty of snow shower activity thru midweek. Inversion heigheights are forecast somewhat below the summits for the high peaks...and forecast Froude numbers are pretty close to 1. While it is early yet that is some suggestion that snow showers will stick closer to the terrain and unblocked flow with flurries to the coast is not likely at this time. Otherwise the week will start chilly and gradually moderate thru the remainder. The next widespread precipitation chance arrives late in the work week. Current ensemble forecasts indicate a well positioned high pressure to help hold cold air over the interior...though there remains plenty of spread in timing and location. The set up is there for another round of wintry weather...especially across the northern half of the forecast area. Currently the NBM does not have any appreciable probabilities of snow...but knowing that it struggles with cold air damming scenarios I have ensured that snow is in the forecast vs freezing rain/rain only. Marine Short Term Low pressure moves in tonight, shifting winds to southwesterlies. Winds and seas strengthen on Sunday, with Gale force winds likely by the end of the day on the outer waters. A gale watch remains in effect for the ocean waters. Long Term Behind the upper trough west winds will remain gusty overnight Sun. The core of the strongest winds look to stay along and south of the forecast area Sunday night at least...so this is where gale force gusts are most likely to occur. I have issued a gale watch for the waters south of Cape Elizabeth thru Mon. Winds will remain gusty in the cold advection and become more uniform across all waters Mon. However the NBM wind gusts seem a tad high based on forecast soundings...so I did not have the confidence for a watch across all waters for Mon. Beyond Mon winds and seas will gradually diminish thru the week. NOAA Gray/Portland ME Office - Watches - Warnings - Advisories ME...Winter Weather Advisory from 7pm Saturday to 7am EST Sunday for MEZ007-008-009-012. NH...Winter Weather Advisory from 7pm Saturday to 7am EST Sunday for NHZ001>007. Marine Gale Watch from Sunday evening through Monday evening for ANZ150-152-154. |
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