Long Island Sound East of New Haven CT/Port Jefferson NY Marine Forecast
| Today...Sw Winds 10 To 15 Kt. Seas 1 Ft Or Less. Wave Detail: Sw 1 Ft At 3 Seconds. Chance Of Showers And Slight Chance Of Tstms This Morning, Then Chance Of Tstms And Slight Chance Of Showers This Afternoon. |
| Tonight...W Winds 5 To 10 Kt, Becoming N After Midnight. Seas 1 Ft Or Less. Wave Detail: W 1 Ft At 3 Seconds. Chance Of Showers And Slight Chance Of Tstms In The Evening. |
| Thu...N Winds 5 To 10 Kt, Becoming W In The Afternoon. Seas 1 Ft Or Less. |
| Thu Night...S Winds Around 5 Kt, Becoming N After Midnight. Seas 1 Ft Or Less. |
| Fri...Ne Winds Around 5 Kt, Becoming Se In The Afternoon. Seas 1 Ft Or Less. |
| Fri Night...Se Winds Around 5 Kt, Becoming E After Midnight. Seas 1 Ft Or Less. |
| Sat...E Winds 5 To 10 Kt. Seas 1 Ft Or Less. |
| Sat Night...E Winds 5 To 10 Kt. Seas 1 Ft Or Less. |
| Sun...E Winds Around 5 Kt. Seas 1 Ft Or Less. |
| Sun Night...S Winds 5 To 10 Kt. Seas 1 Ft Or Less. Winds And Seas May Be Higher In And Near Tstms. |
| Area Forecast Discussion National Weather Service New York NY 448am EDT Wednesday July 22 2026 .WHAT HAS CHANGED... No significant changes. Only some adjustments made to the small craft advisories currently in place. .KEY MESSAGES... 1) The chance of some scattered thunderstorms capable of producing localized brief heavy rainfall today, mainly for eastern portions of the area. 2) There is a high risk of rip currents for ocean beaches through Thursday (see marine section below). .KEY MESSAGE 1... With the area still in a humid air mass today, there will remain the chance of scattered thunderstorm activity. However, unlike yesterday there will be less forcing in place. Thus, activity should be a lot less widespread. Also, the relatively higher PWATs (Precipitable Waters) will align across eastern / southeastern portions of the area. As the cold front draws closer this afternoon scattered shower and thunderstorm activity will attempt to initiate. The CAMs aren't overly bullish with their reflectivity forecasts, however there is enough guidance suggestive that some activity initiates. Any thunderstorms would produce locally heavy rain and potentially some strong wind gusts. An axis of instability is also forecast to extend into SE portions of the area with CAPE values around 1000-1500 j/kg. The front is not expected to clear the region until sometime this evening, and may move a bit slower than currently indicated on WPC progs. Therefore carry chance and slight chance Probability of Precipitation for eastern portions of the area until 00z this evening. Any impacts from any storms is expected to be less than yesterday, and should be mainly of the localized minor variety with the forward speed of any convection expected to be somewhat faster than yesterday. By later tonight into Thursday morning as the cold front gets further east drier and less humid air will slowly begin to filter in from the north and west. Marine Small craft advisories have been discontinued for the western non- ocean waters including the majority of LI Sound as winds are no longer consistently expected to gust to 25 kt. Small craft conditions are expected for the south shore bays into most of this afternoon. Small craft conditions should persist until early Thursday morning on the ocean waters with seas remaining elevated and lingering at or close to 5 ft Thursday morning. Otherwise sub advisory conditions prevail into the day Thursday through the weekend as high pressure settles over the waters before weakening and pushing offshore towards Sunday. Rip Currents A high rip current risk remains in place through Thursday. Some areas could come close to high surf criteria, mainly for today. At this time it appears that surf heigheights will fall just short of surf advisory criteria with the swell direction becomes less orthogonal to the coastline by the time the swell height and period increase, thus limiting the threat of high surf conditions. NOAA New York NY Office: Watches - Warnings - Advisories CT...None. NY...High Risk for Rip Currents through Thursday evening for NYZ075-080- 081-178-179. NJ...None. Marine Small Craft Advisory until 6am EDT early this morning for ANZ332. Small Craft Advisory until 6pm EDT this evening for ANZ345. Small Craft Advisory until 6am EDT Thursday for ANZ350-353- 355. |
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