Stonington ME to Port Clyde ME Marine Forecast
| Tonight...Nw Winds 5 To 10 Kt With Gusts Up To 20 Kt, Becoming Ne Towards Daybreak. Seas 2 To 4 Ft. Wave Detail: S 3 Ft At 9 Seconds. |
| Fri...S Winds 10 To 15 Kt With Gusts Up To 20 Kt, Increasing To 15 To 20 Kt With Gusts Up To 30 Kt In The Afternoon. Seas 2 To 3 Ft, Building To 3 To 5 Ft In The Afternoon. Wave Detail: S 2 Ft At 3 Seconds And S 2 Ft At 8 Seconds, Becoming S 5 Ft At 5 Seconds And S 2 Ft At 8 Seconds. |
| Fri Night...Sw Winds 20 To 25 Kt With Gusts Up To 35 Kt. Seas 5 To 8 Ft. Wave Detail: S 8 Ft At 6 Seconds. Rain, Mainly In The Evening. |
| Sat...W Winds 15 To 20 Kt With Gusts Up To 30 Kt, Becoming Nw 5 To 10 Kt In The Afternoon. Seas 5 To 7 Ft, Subsiding To 3 To 5 Ft In The Afternoon. Wave Detail: S 7 Ft At 7 Seconds, Becoming S 4 Ft At 7 Seconds. |
| Sat Night...Ne Winds 10 To 15 Kt With Gusts Up To 25 Kt. Seas 3 To 4 Ft. Wave Detail: E 3 Ft At 4 Seconds And S 3 Ft At 7 Seconds. A Chance Of Rain And Snow In The Evening, Then Rain After Midnight. Vsby 1 Nm Or Less. |
| Sun...Ne Winds 10 To 15 Kt With Gusts Up To 25 Kt. Seas 3 To 5 Ft. Wave Detail: Se 4 Ft At 7 Seconds. Rain Likely. |
| Sun Night...Nw Winds 25 To 30 Kt With Gusts Up To 40 Kt. Seas 4 To 6 Ft. Rain Likely In The Evening. A Chance Of Snow. Vsby 1 Nm Or Less. |
| Mon...W Winds 25 To 30 Kt With Gusts Up To 40 Kt. Seas 4 To 6 Ft. |
| Mon Night...W Winds 15 To 20 Kt With Gusts Up To 30 Kt. Seas 4 To 6 Ft. |
| Tue...Sw Winds 15 To 20 Kt With Gusts Up To 30 Kt. Seas 4 To 5 Ft. |
| Tue Night...Sw Winds 10 To 15 Kt With Gusts Up To 25 Kt. Seas 3 To 5 Ft. |
| Area Forecast Discussion ...UPDATED National Weather Service Gray ME 646pm EST Thu Jan 8 2026 .WHAT HAS CHANGED... A Gale Watch has been issued for Friday night for the outer waters from Cape Elizabeth northward and includes Penobscot Bay. The Saturday night and Sunday system continues to trend cooler. Update to Key Message 1 about potential freezing fog tonight. .KEY MESSAGES... 1) Patchy fog and freezing fog development tonight into Friday morning will reduce visibility and add the potential for a thin, icy coating to untreated surfaces through the morning commute. Temperatures warm above freezing through the morning, with a period of rain showers by the evening. 2) A period of gusty winds accompany a passing cold front Friday night. The strongest gusts will impact the higher terrain, but some westerly gusts of 30 to 35 mph are possible from the foothills to the coast before daybreak Saturday. 3) Low pressure brings a round of snow and wintry mix Saturday night and Sunday. Slick travel conditions are likely on Sunday. KEY MESSAGE 1 DESCRIPTION... Surface high pressure over the DelMarVa will continue to shift east this evening while a mid level ridge axis will crest over the region tonight. Partly to mostly clear skies and calm winds will allow surface temperatures to radiate efficiently while warmer air moves in aloft. This will set up a stout inversion overnight with model soundings continuing to show sufficient moisture beneath the inversion for fog formation. Hi res guidance suggests that fog will be more patchy than widespread while areas along to the coastal plain may see locally dense fog with visibility reduced to 1/2 mile at times. In addition to fog bringing reduced visibility into the morning commute, surface temperatures in the upper teens to low 20s may allow for untreated surfaces to develop a glaze of ice, but confidence remains low for this possibility. Mostly because dewpoints remained below freezing through most of the day, decreasing confidence. Southerly flow increases Friday morning that will bring temperatures above freezing by mid morning for all areas except the higher terrain and northeastern zones. Low pressure tracking through Quebec area will drag a cold front across the area Friday afternoon into Friday night. This front will mainly bring light rain to much of the area outside of the higher terrain. KEY MESSAGE 2 DESCRIPTION... Low pressure passing well north of the forecast area will bring a strong cold front through Friday evening and overnight. Strengthening upper jet around 180kt will aid in further deepening of this low, with mid and low level jets responding. The latest HREF mean brings a corridor of 55 to 65kt winds at 850 mb across the area Friday night, with strong gusts expected for the Whites and the western Maine Mountains With the wind shifting and cold air advection increasing behind the front, it will be possible for low levels to remain mixed. This would mean occasional gusts of 30 to 35 mph at lower elevations after midnight. KEY MESSAGE 3 Discussion... A cold front moves through Saturday morning, bringing in a drier air mass. Despite highs in the 40s on Saturday, the drier air mass helps set the stage for a snow and wintry mix event as low pressure moves in Saturday night. As we have seen with several other events so far this winter, low pressure occludes in the Great Lakes, as a second low pressure develops in the Gulf of Maine. With it still being Day 4, we have held with the NBM forecast for now. Additionally, the timing is not as ideal as this past Tuesday night's event for a CAD set up, with less cold in place and limited evening radiational cooling ahead of the system. However, the coastal low looks to be stronger with this system, and would be strong enough to advect fresh cool air in through the event. So should the colder solution continue to look more likely, there is room to keep highs below freezing in most spots for Sunday in future forecast updates. This also has implications with the snowfall forecast. Snow overspreads the region Saturday night, with a wintry mix most likely through the event across southern New Hampshire. But then a lull is likely as the dry slot moves in aloft. During this timeframe, freezing drizzle and some wintry mixed showers would be likely across the region. Whether or not we see a second round of steadier precipitation on Sunday from the coastal low remains the largest item of uncertainty at this time. Given the uncertainty, the forecast remains with rain/snow wording until the finer details can be sorted out with more available high res guidance. Cooler air then follows behind the system for Monday. Marine High pressure slides south of the waters through tonight with winds and seas remaining below SCA (Small Craft Advisory) thresholds. High pressure continues to move east Friday afternoon as a cold front approaches and then crosses Friday night. Southerly winds will reach 25 kts by Friday afternoon and then shift SW Friday when winds could gust to Gale force. Seas subside Saturday morning as high pressure quickly crosses the waters. Low pressure develops and tracks through the Gulf of Maine Saturday night and Sunday, with marginal SCA (Small Craft Advisory) conditions possible in northeast flow on Sunday. The low deepens across Atlantic Canada Sunday night, with westerly gales possible late Sunday night and Monday. Winds ease and shift to southwesterly ahead of an approaching cold front Monday night through Tuesday night. NOAA Gray/Portland ME Office - Watches - Warnings - Advisories ME...None. NH...None. Marine Gale Watch from Friday evening through Saturday morning for ANZ150>152. |
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