Moriches Inlet NY to Montauk Point NY out 20 NM Marine Forecast
| Tonight...W Winds 15 To 20 Kt, Becoming Sw 20 To 25 Kt Late This Evening And Overnight. Seas 4 To 6 Ft, Occasionally To 8 Ft, Building To 5 To 8 Ft, Occasionally To 10 Ft After Midnight. Wave Detail: Sw 6 Ft At 6 Seconds And E 1 Ft At 11 Seconds, Becoming Sw 8 Ft At 7 Seconds And E 1 Ft At 11 Seconds. Chance Of Light Snow This Evening, Then Light Snow And Rain After Midnight. Vsby 1 To 3 Nm Late This Evening And Overnight. |
| Thu...Nw Winds 25 To 30 Kt With Gusts Up To 35 Kt. Seas 6 To 9 Ft, Occasionally To 11 Ft. Wave Detail: Sw 8 Ft At 8 Seconds And E 1 Ft At 14 Seconds. Chance Of Snow And Rain Showers In The Morning With Vsby 1 To 3 Nm. |
| Thu Night...Nw Winds 25 To 30 Kt, Becoming W 20 To 25 Kt After Midnight. Seas 5 To 8 Ft, Occasionally To 10 Ft. Wave Detail: W 7 Ft At 7 Seconds And Se 1 Ft At 13 Seconds. |
| Fri...W Winds 15 To 20 Kt With Gusts Up To 25 Kt. Seas 4 To 5 Ft, Occasionally To 6 Ft. Wave Detail: W 5 Ft At 6 Seconds And E 1 Ft At 12 Seconds. |
| Fri Night...W Winds 15 To 20 Kt With Gusts Up To 25 Kt. Seas 3 To 5 Ft, Occasionally To 6 Ft. Wave Detail: Sw 5 Ft At 6 Seconds And E 1 Ft At 12 Seconds. |
| Sat...W Winds 15 To 20 Kt, Diminishing To 10 To 15 Kt In The Afternoon. Seas 2 To 4 Ft, Occasionally To 5 Ft. Wave Detail: W 4 Ft At 5 Seconds And E 1 Ft At 11 Seconds. |
| Sat Night...Nw Winds 5 To 10 Kt, Becoming N After Midnight. Seas Around 2 Ft. |
| Sun...N Winds 10 To 15 Kt With Gusts Up To 20 Kt. Seas 2 To 3 Ft. |
| Sun Night...Nw Winds 15 To 20 Kt. Seas 2 To 3 Ft. |
| Mon...Nw Winds 10 To 15 Kt With Gusts Up To 20 Kt. Seas 2 To 3 Ft. |
| Mon Night...W Winds 5 To 10 Kt. Seas 2 To 3 Ft. |
| Area Forecast Discussion National Weather Service New York NY 620pm EST Wednesday Dec 31 2025 Synopsis Low pressure passes to the north tonight, sending a strong cold front through the area Thursday morning. A secondary low deepens over northern New England on Thursday and then tracks north across eastern Canada Thursday night into Friday. Weak high pressure builds in from the southwest on Saturday. Deepening low pressure passes will south and east of the waters Saturday night into Sunday. Stronger high pressure will then build in for Monday. A frontal system may impact the area early to mid next week. Near Term - Through Thursday Key Points: * Ahead of an approaching cold front there will be a period of mainly light snow later this evening into the morning hours New Year's Day. However, an advisory level snow of 2 to 3 inches is expected across New London County in southeast Connecticut. * A strong cold frontal passage Thursday morning may be accompanied by snow showers, possibly a snow squall. * Brisk and colder conditions expected for New Year's Day as low pressure intensifies east of New England. A vigorous shortwave trough/upper low tracking across the Great Lakes this evening will send a strong cold front toward the area. Warm advection and deep-layerded lift is expected to produce a period of light snow and/or flurries across the region beginning late this evening across the Lower Hudson Valley, NE NJ, NYC metro and SW CT. This area will overspread the remainder of CT and Long Island into the morning hours. Any mixing with rain is unlikely and would be brief across the south shore of LI. Additionally, the SW flow will allow for the system to tap into more moisture with the potential for an advisory level snow across New London County in SE CT, with about 2 to 3 inches. The western half of the area is expected to see a dusting to just under an inch, with 1 to 2 inches expected across much of southern CT and the eastern half of LI. The snow will fall in about a 3 to 5 hour window, ending by daybreak for eastern locations. However, strong frontogenesis, marginal instability, and gusty west winds along and just ahead of the cold front will create a good chance for a line of moderate to heavy snow showers, and perhaps a snow squall. Latest CAMs are in good agreement at this time. The cold front will quickly move across the area, passing eastern LI/SE CT 8-9 am. Once this happens, gusty NW winds and strong cold advection will follow. Wind chills fall into the single digits to lower teens on Thursday. Temperatures this evening will likely hold steady around freezing at the coast and the upper 20s inland. Following the cold frontal passage in the morning, temperatures drop into the 20s at the coast and the lower to mid 20s inland. Short Term - Thursday Night Through Friday Night Key Points: * Brisk and cold conditions continue into Friday night. Deepening low pressure lifts north across eastern Canada during this time as weak high pressure builds in from the southwest. West winds will gust up to about 20 mph with lows in the teens Thursday night and highs Friday in the upper 20s to around 30. These readings are about 10 degrees below normal. Expect some moderation of temperatures Friday night. Long Term - Saturday Through Wednesday Key Points: * Below normal cold continues into Monday, with much of the interior remaining below freezing. * Some moderation is expected for Tuesday after a warm frontal passage. Cold front should remain to the north Fri night into Sat while low pressure passes well south. This will keep us dry and cold into early next week, with high pressure finally building in Sunday into Monday. As the high slides E Tuesday, a SW return flow should develop and a warm front approach from the SW, bringing some precip, mostly as light snow, but with perhaps a rain/snow mix across eastern Long Island and SE CT. Marine Gale warning in effect for the ocean waters Thursday with a SCA elsewhere. Deepening low pressure passes to the north tonight, sending a strong cold front across the waters Thursday morning. SW winds will gusts up to 25-30kt, especially the second half of the night. A NW gale then follows for the ocean waters behind the cold front Thursday. Seas are expected to build to 5 to 9 ft on the ocean and 3 to 5 ft across Long Island Sound. SCA (Small Craft Advisory) cond expected thereafter for the ocean waters into Fri evening, and for the eastern Sound/bays into Thu night or early Fri morning. Hydrology No hydrologic concerns through next weekend. NOAA New York NY Office: Watches - Warnings - Advisories CT...Winter Weather Advisory from 11pm this evening to 10am EST Thursday for CTZ008-012. NY...None. NJ...None. Marine Small Craft Advisory from 1am to 10pm EST Thursday for ANZ331-332-335-340-345. Small Craft Advisory from 1am to 6pm EST Thursday for ANZ338. Small Craft Advisory until 6am EST Thursday for ANZ350-353- 355. Gale Warning from 6am to 6pm EST Thursday for ANZ350-353-355. |
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