Cape Elizabeth ME to Merrimack River MA Marine Forecast
| Today...Ne Winds 5 To 10 Kt With Gusts Up To 20 Kt, Becoming Se Late. Seas Around 2 Ft. Wave Detail: Ne 2 Ft At 4 Seconds And Se 2 Ft At 8 Seconds. |
| Tonight...S Winds 5 To 10 Kt, Becoming Sw After Midnight. Seas Around 2 Ft. |
| Wed...S Winds 5 To 10 Kt. Seas Around 2 Ft. |
| Wed Night...S Winds 5 To 10 Kt, Becoming Nw After Midnight. Seas Around 2 Ft. |
| Thu...Ne Winds Around 5 Kt, Becoming E In The Afternoon. Seas Around 2 Ft. Wave Detail: Se 2 Ft At 8 Seconds. |
| Thu Night...S Winds 5 To 10 Kt, Becoming Sw After Midnight. Seas Around 2 Ft. Wave Detail: S 2 Ft At 3 Seconds. Showers Likely. |
| Fri...Nw Winds 5 To 10 Kt. Seas Around 2 Ft. A Chance Of Showers In The Morning. |
| Fri Night...N Winds 10 To 15 Kt With Gusts Up To 20 Kt. Seas Around 2 Ft. |
| Sat...Ne Winds 5 To 10 Kt With Gusts Up To 20 Kt, Becoming Se In The Afternoon. Seas Around 2 Ft. |
| Sat Night...S Winds 5 To 10 Kt, Increasing To 10 To 15 Kt With Gusts Up To 20 Kt After Midnight. Seas 2 To 3 Ft. A Chance Of Showers After Midnight. |
| Area Forecast Discussion National Weather Service Gray ME 623am EDT Tuesday September 15 2026 .WHAT HAS CHANGED... no changes were needed to the forecast. .KEY MESSAGES... 1. It will be the coldest morning since last spring with Frost Advisories in effect across the North Country. 2. There is a chance for rain late this week, but otherwise it will be generally dry with near to below normal temperatures. KEY MESSAGE 1 DESCRIPTION... Clear skies prevail across the region this morning, with only a subtle breeze delaying the drop in temps at this time. However that is expected to continue to diminish thru sunrise and temps should tumble into the 40s for much of the area. The primary concern will be the North Country valleys where widespread 30s are anticipated. A Frost Advisory remains in effect thru morning. Elsewhere it would not surprise me to see a brief upper 30s reading in the typically cool locations like SFM. With a cool start and subsidence inversion aloft, that will also make it difficult to get too warm this afternoon. Despite full sunshine it may be hard to escape the 60s today. KEY MESSAGE 2 DESCRIPTION... Much of the rest of the week will feature a fast jet to our north with a strong upper ridge centered over the southeastern CONUS to our south. That will be sufficient enough to prevent any significant warmth from entering the region, but will also lead to a frontal boundary at the very least draped near the forecast area. This is what guidance continues to key on for the next chance of rain. A cold front is forecast to wash out in the vicinity Wednesday and then an area of rain may track along that into our backyard for Thu. Given the uncertainty and lack of strong forcing along the boundary, I am okay with the NBM Probability of Precipitation around 50 percent for the local area. The stronger signal is with the next wave that approaches over the weekend. The upper ridge over the Southeast is forecast to retrograde from the late week thru the weekend. As it does so and weakens, an opening upper low will eject from the northern Rockies and head our way. Despite the fact that it is outside of our Quantitative Precipitation Forecast window, there is a plenty of ensemble support for rainfall. NBM is already coming in with high likely Probability of Precipitation and that seems reasonable given the event is occurring at the tail end of the forecast range. Marine Breezy northwest winds continue to diminish overnight as high pressure settles over the region. Winds and seas are expected to remain below SCA (Small Craft Advisory) thresholds thru the remainder of the week. A stronger frontal wave will approach the waters over the weekend, and this will be the window for some areas of SCA (Small Craft Advisory) conditions. NOAA Gray/Portland ME Office - Watches - Warnings - Advisories ME...Frost Advisory until 8am EDT this morning for MEZ007. NH...Frost Advisory until 8am EDT this morning for NHZ001-002. Marine None. |
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