New York Harbor Marine Forecast
|Today...N Winds 5 To 10 Kt, Becoming Se This Afternoon. Waves 1 Ft Or Less.|
|Tonight...S Winds 5 To 10 Kt, Becoming Se After Midnight. Waves 1 Ft Or Less.|
|Tue...Se Winds 5 To 10 Kt. Waves 1 Ft Or Less. Chance Of Showers In The Morning, Then Showers Likely In The Afternoon With Vsby 1 To 3 Nm.|
|Tue Night...Se Winds 5 To 10 Kt, Becoming Sw After Midnight. Waves 1 Ft Or Less. Showers Likely, Mainly In The Evening. Vsby 1 To 3 Nm.|
|Wed...Nw Winds Around 5 Kt. Waves 1 Ft Or Less. Chance Of Showers In The Morning.|
|Wed Night...Nw Winds 5 To 10 Kt. Waves 1 Ft Or Less.|
|Thu...N Winds 5 To 10 Kt, Becoming W In The Afternoon. Waves 1 Ft Or Less.|
|Thu Night...Sw Winds 5 To 10 Kt. Waves 1 Ft Or Less.|
|Fri...Sw Winds 5 To 10 Kt. Waves 1 Ft Or Less.|
|Fri Night...Sw Winds 5 To 10 Kt. Waves 1 Ft Or Less.|
|Area Forecast Discussion|
National Weather Service New York NY
1037am EDT Monday May 21 2018
Synopsis: High pressure builds across the region today and moves off the southern New England coast tonight. A warm front will lift through Tuesday afternoon followed by a cold front late Tuesday night into Wednesday morning. High pressure returns behind the frontal passage and remains through Saturday. Another frontal system impacts the area on Sunday.
Near Term - Until 6pm This Evening
Current forecast is on track, with only minor changes made to reflect current conditions.
Ridging builds into the area today providing mostly sunny and warm weather. Light northerly winds will give way an afternoon seabreezes at the coast. Highs will generally range between mid and upper 70s, although a few 80 degree readings will be possible in metro NY/NJ. Humidity levels will be much lower than yesterday, making it more comfortable
Short Term - 6pm This Evening Through Wednesday
Upper ridge axis shifts to the east tonight as a shortwave trough over the Midwest approaches. Guidance is in good agreement that pcpn hold off until aft 12z Tuesday except perhaps in Orange county. Overrunning pattern strengthens as the day progresses and a warm front lifts into the area. Model soundings are indicating some weak elevated instability late Tuesday aftn through Tuesday eve, in addition to increasing PWATS (maxing out between 1.50 and 1.75 inches). Any tstms that develop have the potential to produce a period of moderate to heavy rainfall. Warm front should lift through the area during the afternoon and early eve as parent low tracks through New England, followed by a cold front Tuesday night into Wednesday morning. High temps are tricky on Tuesday and will depend on timing of the warm fropa.
High pressure returns behind the cold front with dry weather and a return to above normal temps on Wed
Long Term - Wednesday Night Through Sunday
High pressure builds across the area Wednesday night and remains through Saturday, resulting in dry weather with above normal temperatures. A frontal system is then forecast to impact the region Saturday night into Sunday. Highs on Sunday will be in the low to mid 70s.
High pressure was building into the forecast waters from the west and a light northerly flow was across the waters. Ocean seas east of Fire Island Inlet have subsided to below 5 feet, so the Small Craft Advisory was cancelled.
A weak surface pressure gradient force will continue into late in the week. The forecast waters will remain below Small Craft Advisory levels through Friday.
With an increasing southwesterly flow Friday into Saturday, ocean seas may build to 5 feet or more late Friday night into Saturday
Between 1/4 and 1/2 of basin avg Quantitative Precipitation Forecast is expected with the frontal system Tuesday into Wed. Other than some isolated nuisance ponding with any heavy rain from tstms late Tuesday aftn/eve, no hydrologic impacts are expected through the week
NOAA New York NY Office: Watches - Warnings - Advisories
CT...None. NY...None. NJ...None. MARINE...None