Long Island Sound West of New Haven CT / Port Jefferson NY Marine Forecast
| Today...E Winds 10 To 15 Kt. Seas 1 Ft Or Less. Wave Detail: E 1 Ft At 3 Seconds. |
| Tonight...E Winds 5 To 10 Kt, Becoming N After Midnight. Seas 1 Ft Or Less. Wave Detail: E 1 Ft At 3 Seconds. |
| Mon...Ne Winds 5 To 10 Kt, Becoming E In The Afternoon. Seas 1 Ft Or Less. Wave Detail: Ne 1 Ft At 2 Seconds. |
| Mon Night...E Winds 5 To 10 Kt, Becoming Ne After Midnight. Seas 1 Ft Or Less. Wave Detail: E 1 Ft At 2 Seconds. |
| Tue...Ne Winds 5 To 10 Kt, Becoming E In The Afternoon. Seas 1 Ft Or Less. |
| Tue Night...E Winds 5 To 10 Kt. Seas 1 Ft Or Less. Wave Detail: E 1 Ft At 2 Seconds. |
| Wed...E Winds 5 To 10 Kt. Seas 1 Ft Or Less. Chance Of Showers. |
| Wed Night...E Winds 5 To 10 Kt. Seas 1 Ft Or Less. Showers. |
| Thu...N Winds 10 To 15 Kt With Gusts Up To 20 Kt. Seas 1 Ft Or Less. Chance Of Showers. |
| Thu Night...Nw Winds 15 To 20 Kt With Gusts Up To 25 Kt. Seas Around 2 Ft. |
| Area Forecast Discussion National Weather Service New York NY 148am EDT Sunday April 26 2026 .WHAT HAS CHANGED... Small Craft Advisories have been issued for the ocean waters and south shore bays through Monday morning. Otherwise, no significant changes to the forecast. .KEY MESSAGES... 1) Drier conditions today as precipitation comes to an end, with near normal temperatures. 2) Persistent chances for rain with an unsettled, cool pattern in place through late this week. .KEY MESSAGE 1... Sprawling upper low pulls away later today, albeit slowly, off the coast of MA. Rain should come to an end from west to east this morning, as the associated surface trough also pulls east. KOKX 88D as of early morning showing rain activity becoming more scattered in nature from NYC on north and west, with a solid batch still working through central LI and southern CT. According to recent NYS mesonet and micronet stations along with local ASOS, a widespread 1.25" - 1.5" of rainfall has been observed across much of the area from the event with a few more hours of light rain to go. Most of the guidance/CAMs are in agreement that rain becomes lighter around daybreak and ends completely across the area by mid-morning. Surface high pressure begins to fill in behind the departing low with drier air advecting in. Clouds should begin to dissipate as well by midday, with perhaps some breaks in the clouds and sun returning by afternoon as the low and associated frontal system exit. Model soundings are depicting a well mixed PBL by later this afternoon which should result in some E/NE wind gusts 20-25mph into later afternoon. These should subside after 00Z and winds become light as the gradient relaxes and the high builds in. Under clear and nearly calm conditions, lows should drop into upper 30s and lower 40s CWA (County Warning Area) wide. Some patchy frost is possible across the interior, especially the Lower Hudson Valley, where radiative cooling is maximized. .KEY MESSAGE 2... Global ensemble guidance such as GEFS/EC-AIFS etc. continue to advertise anomalously low h5 heigheights with a mean trough over the east coast into next weekend. Best chance of rain is Wednesday into early Thursday as surface low pressure passes to the south and offshore. The mean trough may end up cutting off nearby into late week with strong blocking south of Greenland, keeping at least a chance for rain around along with cooler temperates. Marine NE flow will be increasing from west to east today, and slowly diminishing tonight as low pressure moves well to the east. As a result, SCA (Small Craft Advisory) conditions will be developing on the ocean waters and south shore bays today into tonight. Small Craft Advisories have been issued for the ocean and southern bays and will continue through early Monday at this time. Then seas will remain elevated on the ocean waters into Tuesday with a persistent NE flow. Seas on the ocean may linger at or above 5 ft through at least Wednesday. NOAA New York NY Office: Watches - Warnings - Advisories CT...None. NY...None. NJ...None. Marine Small Craft Advisory from 6am this morning to 6pm EDT this evening for ANZ345. Small Craft Advisory from 8am this morning to 6am EDT Monday for ANZ350. Small Craft Advisory until 6am EDT Monday for ANZ353-355. |
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