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Forecast Discussion for New York City/Upton, NY
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293 FXUS61 KOKX 261434 AFDOKX Area Forecast Discussion National Weather Service New York NY 1034 AM EDT Fri Jun 26 2026 .WHAT HAS CHANGED... No significant changes. && .KEY MESSAGES... 1) Periodic rain showers and possible thunderstorms through early Saturday. 2) Building heat late weekend into next week. Mainly dry but a few disturbances may bring about some periodic showers and thunderstorms next week. && .DISCUSSION... .KEY MESSAGE 1... Area in warm sector with southerly flow. The southerly flow increases this afternoon becoming gusty along parts of the coast. The rain showers with left front quad dynamics will be less expansive and decrease in probability later this morning when the dynamics are less favorable. Showers with possible embedded thunderstorms into early this morning will be capable of producing locally heavy rain. There will be building instability but drier air and a lack of vertical moisture. So, the cold front is not expected to result in additional shower and thunderstorm activity as it approaches this afternoon and moves across this evening into overnight. The chances for showers increase late tonight into Saturday as a wave of low pressure develops along the cold front south of the region. There may be enough elevated instability for a possible thunderstorm but probabilities for these are slight chance. Max temperatures in the 80s today for most locations and more in the 70s to near 80 Saturday with that greater chance of showers. .KEY MESSAGE 2... Building heat potential late weekend into next week. Mainly dry but a few disturbances may bring about some periodic showers and thunderstorms next week. High pressure moves in by Sunday and into Monday. This high pressure area settles south of the region and becomes based in Western Atlantic thereafter. Mainly dry conditions expected Saturday night and through the rest of the weekend as well as through Monday. Chances for any showers and thunderstorms will be tied more to any occasional disturbances, weak waves of low pressure or embedded shortwaves in the mid level flow aloft Tuesday onward next week. There are relatively higher chances as the week progresses as there will be more daytime instability to help make the air more buoyant. The forecast used a blend of forecast guidance for late weekend into next week for temperatures. Forecast high temperatures well into the 80s for Monday will get more into the 90s as the week progresses with more of the region getting into the 90s range. With the synoptic setup, airmass will become humid as well, with potential max heat indices in the mid 90s to near 100 range for mid to late next week. && .AVIATION /15Z FRIDAY THROUGH TUESDAY/... A cold front approaches, eventually moving across tonight into tomorrow. Rain showers are now ending west to east. The potential for MVFR/IFR will remain through midday. Otherwise VFR. Winds are light and somewhat variable still this morning. More of a SW to WSW flow near 10 kt eventually develops through late morning/midday. There is a potential for 20kt gusts at city terminals this afternoon and early evening, but confidence in them occurring is now lower than previously thought, so they have been removed from the TAFs. Overnight, winds will diminish closer to 5-6 kt, remaining WSW. ...NY Metro (KEWR/KLGA/KJFK/KTEB) TAF Uncertainty... Amendments possible for showers and MVFR. Low probability of thunder early Saturday morning. .OUTLOOK FOR 15Z SATURDAY THROUGH TUESDAY... Saturday: MVFR to IFR possible with early showers, possible thunderstorms. Otherwise VFR. Saturday night: VFR. Sunday and Monday: VFR. Tuesday: Mainly VFR. Possible late day shower or thunderstorm with possible MVFR. S winds G15-20kt in the afternoon. Detailed information, including hourly TAF wind component forecasts, can be found at: https:/www.weather.gov/zny/n90 && .MARINE... Conditions forecast to remain below SCA thresholds through the weekend and into Monday. Potential for ocean SCA conditions Tuesday. Marginal SCA potential for non-ocean waters Tuesday. Rip Currents: Moderate rip current risk for ocean beaches today and Saturday with onshore flow. Some potential for longer period southerly swell to develop Saturday. Went with moderate rip current risk with forecast southerly gusts up to 20 kt today and for Saturday, went with moderate rip current risk as well, considering the long time period of southerly flow. This also takes into account multiple sets of swells all with onshore components. && .OKX WATCHES/WARNINGS/ADVISORIES... CT...None. NY...None. NJ...None. MARINE...None. && $$ DISCUSSION...JM AVIATION...BR MARINE...JM |
Previous Forecast Discussions may be found at
NWS New York City/Upton, NY (OKX) Office Forecast Discussions.
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