Area Forecast Discussion
Issued by NWS Upton, NY

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728 FXUS61 KOKX 241809 AFDOKX Area Forecast Discussion National Weather Service New York NY 209 PM EDT Mon Jun 24 2024 .SYNOPSIS... High pressure builds in through Tuesday. The high settles south of the area Tuesday night as a warm front lift north Tuesday night. A cold front will move across from Wednesday night into Thursday morning. High pressure will then return for Thursday night into Friday, and move off the northeast coast on Saturday as a frontal system begins to approach. The system moves through Sunday into Sunday night. && .NEAR TERM /THROUGH TUESDAY/... The forecast is on track this afternoon. A warm and gusty afternoon is expected with temperatures much cooler than previous days. Highs will be in the upper 70s and lower 80s. Peak sustained winds today of 20 to 25 mph, with peak gusts of 30 to 35 mph. There is just a slight chance for showers across northern areas of the Lower Hudson Valley this afternoon as the upper level low and trough slowly move east. With dew points dropping into the 40s and 50s, don`t expect too much to reach the ground. && .SHORT TERM /TUESDAY NIGHT THROUGH 6 PM TUESDAY/... Winds diminish overnight with the loss of daytime heating this evening. A much more comfortable night with lows in the upper 60s to upper 50s across the area tonight. Lows may be a couple of degrees too high if the air mass is drier than forecast. Winds may stay up enough so that radiational cooling may not be maximized. The high will continue to build in for Tuesday and settled to the south of the area by Tuesday afternoon and evening. Winds shift to the west then southwest by the afternoon, allowing for a rise in temperatures. Highs should top off in the upper 80s to lower 90s for much of the area. With dew points still in the 50s region-wide, heat headlines are not anticipated. A warm front lifts north of the area overnight Tuesday, allowing for an increase in dew points and for a return to warm overnight lows, ranging from the middle 70s in the metro area, to upper 60s in the interior. && .LONG TERM /TUESDAY NIGHT THROUGH MONDAY/... Key Points: * Temperatures will remain near to just above normal, with Wednesday the warmest and most humid day of the period. * A slow moving cold front may bring locally heavy rainfall from late day Wednesday through Wednesday night. Global guidance continues to remain in fair agreement for next week and as such, there has not been much change to the forecast with this update. The National Blend of Models was followed closely. An amplifying northern stream upper trough moves through the Great Lakes and northeast Wednesday through Thursday with a surface low tracking across southeastern Canada. Deep southwest flow ahead of the systems cold front will bring warm and humid air into the region Wednesday with inland temperatures expected to be in the lower to mid 90s. Wednesday may be marginal for heat advisories as a few locations across northeastern New Jersey will have heat indices nearing 100. Precipitable water values increase to 1.75 to 2.0 inches Wednesday into Wednesday night. Strong upper lift with increased surface and elevated CAPE, along with instability will result in thunderstorms by ate Wednesday into Wednesday night with the potential for moderate to heavy rainfall. And there is a chance of excessive rainfall across the lower Hudson Valley into northeastern New Jersey. High pressure moving out of central Canada Thursday into Thursday night will be a cooler and drier airmass to the region as dew points drop into the lower to mid 50s Thursday through Friday. Another frontal system approaches Saturday with a warm front moving north, with increased humidity, and a chance of showers and thunderstorms into next weekend. && .AVIATION /18Z MONDAY THROUGH SATURDAY/...
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High pressure builds in from the west through tonight. VFR. Gusty W/NW winds expected through this afternoon, and possibly into early this evening. By afternoon gusts 25-30 kt are likely, and there may be occasional gusts as high as 35 kt. Winds and gusts diminish after sunset, with the gusts ending late tonight. Winds then remain around 10 kt overnight and into Tuesday. ...NY Metro (KEWR/KLGA/KJFK/KTEB) TAF Uncertainty... Occasional gusts this afternoon, mainly late afternoon, may be as high as 35 kt. OUTLOOK FOR 18Z TUESDAY THROUGH FRIDAY... Tuesday: VFR. Wednesday: Mainly VFR. A chance of showers and thunderstorms in the late afternoon, and likely at night, with MVFR or lower possible. SW wind 15-20 kt G20-25 kt near the coast. Thursday: MVFR or lower possible early with a chance of showers, then VFR. Friday: VFR. Saturday:VFR with a chance of thunderstorms in the afternoon. Detailed information, including hourly TAF wind component forecasts, can be found at: https:/www.weather.gov/zny/n90
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&& .MARINE... Winds are expected to increase behind a cold front that will move through this morning. SCAs already up for the ocean, but SCAs have been issued for non-ocean waters for late this morning for the harbor, south shore bays, and western sound and early this afternoon for Peconic and Gardiner`s bays and the central and eastern sound as the cold frontal passage is expected later in these areas. Winds diminish tonight, and non-ocean waters SCAs come down at 2 am Tuesday, or sooner if winds diminish quicker than forecast. SCA on the ocean waters have been extended due to the combination of the 25 to 30 kt wind gusts expected today and the slowly diminishing waves that are expected to remain above 5 ft through tonight. Waves should be diminishing at the start of the near term period (this morning) at 4 to 7 ft. && .HYDROLOGY... No hydrologic concerns through Tuesday night expected. There is a chance for locally heavy rain from late day Wednesday afternoon into Wednesday night ahead of a cold front that moves through Wednesday night. && .TIDES/COASTAL FLOODING... A high rip current risk continues today for all ocean beaches mainly due to an energetic S swell. The risk lowers to moderate on Tuesday as seas subside with an offshore wind trajectory for much of the day. && .OKX WATCHES/WARNINGS/ADVISORIES... CT...None. NY...High Risk for Rip Currents until 8 PM EDT this evening for NYZ075- 080-081-178-179. NJ...None. MARINE...Small Craft Advisory until 2 AM EDT Tuesday for ANZ331-332-335- 338-340-345. Small Craft Advisory until 6 AM EDT Tuesday for ANZ350-353-355. && $$ SYNOPSIS...JP/MET NEAR TERM...JP/DS SHORT TERM...JP LONG TERM...MET AVIATION...20 MARINE...JP/MET HYDROLOGY...JP/MET TIDES/COASTAL FLOODING...