Stonington ME to Port Clyde ME Marine Forecast
| This Afternoon...Sw Winds Around 10 Kt. Seas 2 To 3 Ft. |
| Tonight...Nw Winds 5 To 10 Kt. Seas 2 To 3 Ft. |
| Thu...Nw Winds 5 To 10 Kt, Becoming Sw In The Afternoon. Seas Around 2 Ft. |
| Thu Night...Sw Winds 10 To 15 Kt With Gusts Up To 20 Kt. Seas 2 To 4 Ft. Showers Likely. |
| Fri...N Winds 5 To 10 Kt, Becoming Se In The Afternoon. Seas 2 To 4 Ft. |
| Fri Night...Se Winds 10 To 15 Kt, Increasing To 15 To 20 Kt After Midnight. Seas 2 To 4 Ft. A Chance Of Rain. |
| Sat...S Winds 20 To 25 Kt With Gusts Up To 30 Kt. Seas 3 To 5 Ft, Building To 6 To 8 Ft In The Afternoon. Rain. |
| Sat Night...Sw Winds 15 To 20 Kt, Becoming Nw After Midnight. Gusts Up To 30 Kt. Seas 5 To 8 Ft. Rain Likely In The Evening, Then A Chance Of Showers After Midnight. |
| Sun...Nw Winds 15 To 20 Kt, Diminishing To 10 To 15 Kt In The Afternoon. Seas 4 To 6 Ft. |
| Sun Night...Nw Winds 10 To 15 Kt With Gusts Up To 20 Kt. Seas 3 To 5 Ft, Subsiding To 2 To 3 Ft After Midnight. |
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Area Forecast Discussion National Weather Service Gray ME Issued by National Weather Service Caribou ME 329pm EDT Wednesday April 23 2025 Synopsis A weak disturbance will bring the chance for showers tomorrow afternoon. The next chance of rain arrives this weekend as low pressure tracks near New England. Saturday looks to be widespread rain with a cool Sunday and lingering showers. Drier weather expected for the beginning of next week. Near Term - Through Thursday Quiet weather expected tonight with surface high pressure in control. Fog is not expected with thermal cross-over temperatures not supporting fog until lows in the lower 30s. Radiational cooling is expected tonight with clear skies and light winds at the top of the boundary level. Classic spring April conditions on tap. High pressure continues to drift south of Georges Bank in the Atlantic as an approaching 500mb trough slides over Quebec. The day will be mainly dry for most locations till late afternoon as the chance of rain showers increases from the NW mainly across the northern 1/2 of the CWA. Winds turn S-SW tomorrow with moisture advecting off the Gulf of Maine. Across the mountains expecting highs in the upper 50s to low 60s. Coastal Maine into the Midcoast and Kennebec Valley will be in the low 60s thanks to winds off the waters. Southern & south-central New Hampshire into the Lakes region of Maine will warm up into the upper 60s to low 70s thanks to the SW winds. Short Term - Thursday Night Showers will continue through the evening with a possible rumble of thunder, especially across the north with good mid-level lapse rates. Shower activity will end by midnight. Cloud cover will moderate temperatures with lows mostly in the 40s. Long Term - Friday Through Wednesday Overview: High pressure rotates into the open Atlantic Friday. Low pressure passes through the Great Lakes and towards New England Friday night into Saturday. This will bring our best chance of rain through the period as high pressure returns for early next week. Details: Dry weather through Friday as high pressure continues into the open Atlantic. Clear skies and decoupling could bring temps into the lower 40s or upper 30s. A weak shortwave trough will pass across Northern Maine on Friday night bringing the potential for scattered rain showers and even a rumble of thunder. Return flow increases Friday afternoon as low pressure enters the Great Lakes. Confidence is high that this system will eventually bring rain chances to the forecast area this weekend, but there are still differences in how the system progresses east. Latest guidance has begin to close the 500mb shortwave off a bit more and slowed down the eastward progression. This could lead to more rain shower and even mountain snow shower activity on Sunday now. Overall Quantitative Precipitation Forecast amounts have trended up a bit for the event, with the potential for widespread three quarter of an inch to and inch of rainfall. Right now confidence for and inch greater in the 12Z ensemble Means is shifting a little further north across the mountains. Potential exists for some embedded convective elements with elevated instability, but strong onshore flow will push a cool low level marine layer into the region. Overall Saturday is looking very unpleasant. Showers still expected on Sunday, with partial clearing by Sunday afternoon. Beginning of next week looks dry and warmer with above normal temperatures expected! Marine Short Term Quite weather continues through Friday with high pressure in control. Light return flow is expected to begin tomorrow before increasing by Friday afternoon. A low pressure system approaches by Saturday with increasing southwest winds. Long Term Saturday rain and fog is expected with the potential for SCA (Small Craft Advisory) conditions. Low pressure departs by Saturday night with high pressure returning in its wake on Sunday with off-shore flow and possible continuation of SCA (Small Craft Advisory) conditions. NOAA Gray/Portland ME Office - Watches - Warnings - Advisories ME...None. NH...None. Marine None. |
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