Long Island Sound East of New Haven CT/Port Jefferson NY Marine Forecast
| Tonight...W Winds Around 10 Kt, Becoming Nw Late This Evening. Seas 1 Ft Or Less. Wave Detail: W 1 Ft At 2 Seconds. Isolated Showers Early. |
| Sat...Nw Winds 5 To 10 Kt. Seas 1 Ft Or Less. Wave Detail: Nw 1 Ft At 2 Seconds. |
| Sat Night...N Winds 5 To 10 Kt. Seas 1 Ft Or Less. |
| Sun...N Winds 5 To 10 Kt. Seas 1 Ft Or Less. |
| Sun Night...N Winds 5 To 10 Kt. Seas 1 Ft Or Less. Wave Detail: N 1 Ft At 2 Seconds. |
| Mon...Ne Winds Around 10 Kt. Seas 1 Ft Or Less. Wave Detail: Ne 1 Ft At 2 Seconds. |
| Mon Night...Ne Winds 15 To 20 Kt With Gusts Up To 25 Kt. Seas 2 To 3 Ft. |
| Tue...Ne Winds 15 To 20 Kt With Gusts Up To 25 Kt. Seas 2 To 3 Ft. |
| Tue Night...Ne Winds 20 To 25 Kt. Seas 2 To 4 Ft, Occasionally To 5 Ft. Chance Of Showers. |
| Wed...N Winds 15 To 20 Kt With Gusts Up To 25 Kt. Seas 2 To 4 Ft, Occasionally To 5 Ft. Chance Of Showers. |
| Wed Night...N Winds 15 To 20 Kt With Gusts Up To 25 Kt. Seas 2 To 3 Ft. Chance Of Showers. |
| Area Forecast Discussion National Weather Service New York NY 246am EDT Sat Oct 25 2025 Synopsis High pressure will build from the west this weekend. The high will remain in control to our north on Monday with multiple areas of low pressure approaching from the south for the mid to late week period. Near Term - Through Tonight Generally tranquil conditions are expected today with mostly clear skies in the morning becoming a mix of sun and clouds during the afternoon. High pressure continues to build into the area from the west allowing for a light NW/N flow. Highs today will be slightly below average, generally in the middle to upper 50s. By tonight, high pressure shifts overhead with light winds and clear skies. This will allow for efficient radiational cooling conditions for areas away from the immediate coast. Temperatures will drop into the low to middle 30s for inland areas to the north. Frost advisories are in effect for these areas where a widespread frost is expected. A Freeze Warning is in effect for Orange Country where temperatures are expected to reach or fall just below freezing tonight and into Sunday morning. Patchy frost may also occur in any inland areas that cool quickly, specifically the Long Island Pine Barrens, but lack of areal coverage is why an advisory was not issued for this region. Short Term - Sunday Through Monday Night Surface high pressure continues to remain generally overhead with an upper level trough swinging through on Sunday. In addition to this resulting in cooler than normal temperatures, this may result in the chance for a stray afternoon shower. High temperatures Sunday will be in the middle 50s. Cold temperatures are expected once again Sunday night with perhaps even more widespread areas of freezing or near freezing temperatures, mainly inland and to the north. The cooler than normal temperatures persist into Monday with highs expected to be in the low to middle 50s. A reinforcement in the upper level trough may result in a weakening of surface high pressure as it pushes a bit to the north. Increased cloud cover for eastern areas is possible as a low pressure wave develops off the coast of the Southeast US. Clouds and perhaps a few showers may approach eastern areas Monday night into Tuesday morning. Lows Monday night will be generally in the middle 30s to lower 40s, with coolest areas away from the immediate coast. Long Term - Tuesday Through Friday Key Points: * More chances for rain, but not necessarily raining the entire timeframe * Cooler than normal temperatures * Potentially multiple periods of gusty winds A varying amplitude upper level trough remains across the region towards mid to late next week. At the surface, multiple areas of low pressure approach the region from the south. A period of unsettled weather with chances of rain showers and cooler than normal daytime temperatures is in the forecast. A period of gusty winds is also forecast at various times with the closer proximity of low pressure and the resulting increase in pressure gradient. Max gusts in the forecast over the land mostly around 25 to 30 mph with relatively a little higher values over the regional marine areas. However, overall confidence in the forecast is low as long range ensemble are indicating large spread in the MSLP in the region within the mid to late week period. Marine Winds and seas remain below SCA (Small Craft Advisory) criteria through Monday with high pressure mostly in control. Increasing NE flow then leads to SCA (Small Craft Advisory) conditions developing on then ocean waters for winds and seas Monday night. By Tuesday and Wednesday, the pressure gradient is expected to tighten with the approach of low pressure from the south in contrast to the high pressure moving farther north. SCA (Small Craft Advisory) conditions are forecast across much if not all the waters in terms of wind gusts with these conditions being most likely across the ocean zones where an occasional gale force wind gusts could occur. Ocean seas also are forecast to meet SCA (Small Craft Advisory) levels with forecast seas of 5 to 8 ft. Hydrology No hydrologic concerns through midweek. Too much uncertainty to determine any flood threat beyond the middle of next week. NOAA New York NY Office: Watches - Warnings - Advisories CT...Frost Advisory until 9am EDT this morning for CTZ005. Frost Advisory from 11pm this evening to 9am EDT Sunday for CTZ005>008. NY...Frost Advisory until 9am EDT this morning for NYZ067-068. Frost Advisory from 11pm this evening to 9am EDT Sunday for NYZ068-070. Freeze Warning from 11pm this evening to 9am EDT Sunday for NYZ067. NJ...Frost Advisory from 11pm this evening to 9am EDT Sunday for NJZ002. Marine None. |
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