Area Forecast Discussion
Issued by NWS Upton, NY
Issued by NWS Upton, NY
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386 FXUS61 KOKX 302342 AFDOKX Area Forecast Discussion National Weather Service New York NY 742 PM EDT Wed Sep 30 2026 .WHAT HAS CHANGED... Updated for Aviation. && .KEY MESSAGES... 1) Conditions gradually warm and remain mostly dry through Friday with high pressure in place. 2) Low chance of rain Sunday night. No impacts expected. && .DISCUSSION... .KEY MESSAGE 1... Surface high pressure will remain offshore through Friday. A weak warm front moves across the region on Thursday resulting in some mid and high cloud cover, but conditions remain dry. Temperatures on Thursday get into the 70s. By Friday, deep SW-W flow will allow 850mb temperatures to climb to 17-18C. This will allow surface temperatures to reach the upper 70s and low 80s for much of the region. A few mid 80s will be possible across the metro portions of NJ and NYC. While the warm temperatures are not record breaking on Friday, temperatures will be 10-15 degrees above normal for this time of year. A cold front is expected to move across the region late Friday brings an end to the warm conditions. Some precipitation is also expected with the frontal passage, so expect some increasing clouds and chances for rain late Friday afternoon through the first part of Friday night. The best chances for rain will be across the eastern portions of the region. .KEY MESSAGE 2... High pressure will be the main feature for the long term period with temperatures around or below normal. From Saturday through Wednesday, the only chance of rain appears to be during Sunday night as a wave of low pressure passes to our south. Chances are low, only 20 to 30%, and impacts from this are not expected. && .AVIATION /00Z THURSDAY THROUGH MONDAY/... High pres will remain offshore thru Fri. VFR thru the TAF period. Light SW winds tonight with some variability in direction at times due to the light flow. SSW-SW flow expected to be more around 10 kt for Thu afternoon, then speeds decrease Thu eve with slight veering to the SW again. ...NY Metro (KEWR/KLGA/KJFK/KTEB) TAF Uncertainty... Some variability in wind direction can be expected overnight. .OUTLOOK FOR 00Z FRIDAY THROUGH MONDAY... Thursday night: VFR with SW winds blw 10kt. Friday: MVFR or lower possible. A chance of showers in the afternoon, becoming likely for some locations at night. Saturday-Sunday: Mainly VFR. Sunday night-Monday: MVFR or lower possible with chance of showers late at night into early Monday. Detailed information, including hourly TAF wind component forecasts, can be found at: https:/www.weather.gov/zny/n90 && .MARINE... Light SW flow continues through Thursday with high pressure settling offshore. Winds and seas increase with an approaching cold front Friday and this could lead to a brief period of SCA conditions on some of the coastal ocean waters late Friday afternoon or Friday evening. Easterly winds pick up on Sunday with gusts possibly approaching 25 kt for a brief time, otherwise winds and seas across all waters are expected to remain below advisory levels this weekend into early next week. && .OKX WATCHES/WARNINGS/ADVISORIES... CT...None. NY...None. NJ...None. MARINE...None. && $$