New York Harbor Marine Forecast
| Today...E Winds Around 10 Kt, Becoming Sw With Gusts Up To 20 Kt This Afternoon. Waves 1 Ft Or Less, Then Around 2 Ft. Wave Detail: E 1 Ft At 4 Seconds. Areas Of Fog Early. Chance Of Rain Early. Slight Chance Of Tstms. Rain. Vsby Less Than 1 Nm Early. |
| Tonight...W Winds 10 To 15 Kt With Gusts Up To 20 Kt. Waves Around 2 Ft. Wave Detail: W 1 Ft At 2 Seconds. Chance Of Rain In The Evening. |
| Mon...W Winds 10 To 15 Kt With Gusts Up To 20 Kt. Waves Around 2 Ft. Wave Detail: W 1 Ft At 2 Seconds. |
| Mon Night...W Winds 5 To 10 Kt. Waves Around 2 Ft In The Evening, Then 1 Ft Or Less. Wave Detail: W 1 Ft At 2 Seconds. Slight Chance Of Rain. |
| Tue...W Winds 15 To 20 Kt With Gusts Up To 25 Kt. Waves 2 To 3 Ft. Wave Detail: W 2 Ft At 2 Seconds. Slight Chance Of Rain In The Morning. |
| Tue Night...Nw Winds 15 To 20 Kt, Becoming N 10 To 15 Kt After Midnight. Waves 2 To 3 Ft. Wave Detail: Nw 2 Ft At 2 Seconds. |
| Wed...E Winds 5 To 10 Kt. Waves 1 Ft Or Less. |
| Wed Night...S Winds 10 To 15 Kt. Waves 1 Ft Or Less. |
| Thu...Se Winds 10 To 15 Kt With Gusts Up To 20 Kt. Waves Around 2 Ft. |
| Thu Night...S Winds 10 To 15 Kt With Gusts Up To 20 Kt. Waves Around 2 Ft. Winds And Waves May Be Higher In And Near Tstms. |
| Area Forecast Discussion National Weather Service New York NY 713am EDT Sunday April 5 2026 .WHAT HAS CHANGED... Updated for 12Z Aviation. .KEY MESSAGES... 1. Patchy dense fog possible this morning. 2. A cold front moves through today bringing a period of rainfall perhaps with some thunder. Dry conditions then follow for much of the week. 3. Temperatures warm to near seasonable levels Thursday, followed by an increasing probability of above normal temperatures for later in the week. .KEY MESSAGE 1... Widespread fog has developed mainly along the coast early this morning. Visibilities along the coast have dropped to near or below 1 mile. This fog may become locally dense and persist into late morning before a cold front brings rainfall to the area. An SPS is issued for the affected areas through 10 AM. .KEY MESSAGE 2... The stalled boundary to the south of the area over night surges north this morning as a warm front bringing scattered showers ahead of an approaching cold front from the west this morning. The cold front will push east through the day, bringing with it a period of light to moderate rainfall, perhaps with some embedded thunder given some marginal elevated instability. Overall, 0.25-0.5" of rainfall is expected, perhaps a bit higher in any locations with heavier embedded convection or a thunderstorm. After the front moves through, much of the rest of the week looks to be mainly dry as a large Canadian high pressure system builds into the area mid-week. A weak disturbance may however bring some showers for inland areas Monday night into Tuesday, but Probability of Precipitation are only 30 percent at this time. .KEY MESSAGE 3... Behind the cold frontal passage today, temperatures will remain generally below average through the middle of the week, generally reaching their coldest on Wednesday with highs only in the middle to upper 40s. THe high moves offshore Wednesday night into Thursday allowing for a more moderate airmass to advect into the area toward the end of the week. Temperature uncertainty increases Thursday, mainly due to uncertainty around the surface wind direction. With water temperatures still quite cold a more southerly or easterly component to the wind as opposed to a more westerly component will have a big effect on temperatures. Also, 5 kft temperatures really don't warm significantly until Friday into Saturday. Thus, have stayed with the NBM temperature guidance through Thursday night. However, with a cold front that likely washes out with rising heigheights just upstream look for the potential for noticeably warmer temperatures than consensus guidance is currently indicating for Friday, and on Saturday as well. For now staying close to the NBM, but there is a higher than average chance for adjustments going forward in time. Marine A Marine Dense Fog Advisory is in effect for all of the waters through noon for fog dropping visibilities to 1 NM or less. A Small Craft Advisory is in effect for the ocean along with much of the non-ocean waters through this afternoon, with the exception of NY Harbor and the W LIS. Waves on the ocean will remain above 5 ft and southwest winds will then ramp up later this morning ahead of an approaching cold front. Gusts up to 30 kt will be possible on the waters where a SCA (Small Craft Advisory) is in effect. A strong inversion over the waters is expected to keep gusts below gale force, though an occasional gale-force gusts can't be ruled out. Winds will then diminish in the late afternoon, becoming westerly in the evening. SCA (Small Craft Advisory) seas are likely linger on the ocean for much of tonight. Marginal small craft conditions are possible in NW flow Tuesday, possibly lingering on the eastern ocean waters Tuesday night. Otherwise, sub advisory conditions prevail for mid week during Wednesday into Thursday. NOAA New York NY Office: Watches - Warnings - Advisories CT...None. NY...None. NJ...None. Marine Dense Fog Advisory until noon EDT today for ANZ331-332-335-338- 340-345-350-353-355. Small Craft Advisory until 5pm EDT this afternoon for ANZ331- 332-340-345. Small Craft Advisory until 6am EDT Monday for ANZ350-353-355. |
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