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Forecast Discussion for New York City/Upton, NY
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613 FXUS61 KOKX 270230 AFDOKX Area Forecast Discussion National Weather Service New York NY 1030 PM EDT Fri Jun 26 2026 .WHAT HAS CHANGED... No significant changes made. && .KEY MESSAGES... 1) Periodic rain showers possible late tonight into Saturday. 2) High heat and humidity becoming increasingly likely from mid to late next week. && .DISCUSSION... .KEY MESSAGE 1... Showers with a weak wave of low pressure passing to the south as the cold front passes through should move in late tonight and continue on/off into Sat. Most of this activity should be on the light side, but may have to keep an eye on NE NJ in the afternoon where 12Z HREF signals 10-20% low probability of an inch of rain. No more than nuisance issues expected with this activity if/where it occurs. .KEY MESSAGE 2... A highly anomalous amplified upper flow will be featured across the country during this time, with a trough out west and a a high centered over the Ohio and Tennessee Valleys. Heights are greater than 594 dm, about 2 SD above normal, and 85H temps on Thursday on the latest 12Z GFS are at or above 22C. Trends the last 24h has shown the upper ridge to be a bit stronger across the Northeast in the Wednesday to Thursday timeframe. That being said, there is still some uncertainty with the strength and magnitude as disturbances round the ridge across the Northeast. The 12Z GFS is still supporting a convective complex dropping across the Northeast Tuesday night into Wednesday morning, sending a back door cold front through the area. The spread between the NBM 25th and 75th percentiles is over 10 degrees from NYC up into SW CT and generally over 8 for much of the area on Wednesday. The spread decreases some Thursday and into Friday, which look to be the hottest days of the week. A compromise was made between the warmer NBM and global consensus. The key point here is confidence is increasing for high heat and humidity with a potential Heat Advisory or higher level event. Highs Thursday and Friday are forecast to be 90-95 away from the immediate coast, with lows in the 70s. Record highs during this time are mainly 100 plus. So some pretty stout records are in place. Even the warmer NBM highs are generally short, but do tie or break in a few places on Thursday. && .AVIATION /03Z SATURDAY THROUGH WEDNESDAY/... A weak cold front lingers near the terminals into Saturday night. Mainly VFR through the TAF period. Periodic showers are possible early Saturday morning into the afternoon. Coverage and timing is still somewhat uncertain, so have gone with PROB30s. Most of the showers should be light, but an isolated heavier shower or thunderstorm cannot be completely ruled out Saturday afternoon, mainly from the NYC metro terminals on NW. through the evening and into tonight. VFR is anticipated tonight and Sat, but brief periods of MVFR are possible with showers. Winds will continue weakening this evening, becoming light and variable overnight. For Saturday, a light N-NNE flow develops after 12z before shifting to the SW-S late morning into the afternoon. The wind direction may also vary at times, especially during the morning as wind speeds may remain close to 5 kt. Wind speeds will remain under 10 kt Saturday afternoon. ...NY Metro (KEWR/KLGA/KJFK/KTEB) TAF Uncertainty... Amendments possible for showers through Saturday. Most of the shower activity should be light. There is a low probability of an isolated thunderstorm Saturday afternoon. Variable wind direction possible Saturday morning. .OUTLOOK FOR 00Z SUNDAY THROUGH WEDNESDAY... Saturday night: Low chance for MVFR/IFR east of the NYC metro terminals. Sunday-Monday: VFR Tuesday: VFR. Slight chance of a shower or thunderstorm with MVFR NW of the NYC metro terminals. S winds possible G15-20kt in the afternoon. Wednesday: VFR. Slight chance of a shower or thunderstorm with MVFR. 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 middle of next week. Could see some wind approaching 25 kt Tue afternoon and Wed afternoon in a southerly flow. Rip Currents: The rip current risk looks to be low over the weekend with 1-2 ft swell sets varying between 5-10s and onshore winds at or below 10 kt. Recent observations at area beaches are also supporting a lower risk. && .OKX WATCHES/WARNINGS/ADVISORIES... CT...None. NY...None. NJ...None. MARINE...None. && $$ DISCUSSION...Goodman/DW AVIATION...DS MARINE...Goodman/DW |
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NWS New York City/Upton, NY (OKX) Office Forecast Discussions.
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