841 FXUS61 KOKX 191724 AFDOKXArea Forecast Discussion National Weather Service New York NY 124 PM EDT Fri Sep 19 2025
.SYNOPSIS... A cold front moves through today, followed by high pressure building in to begin the weekend. High pressure moves across and settles east early next week. A warm front lifts to the north on Tuesday as high pressure weakens nearby. A frontal boundary approaches towards mid week.
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.NEAR TERM /THROUGH TONIGHT/... A cold front will sag southeast this morning and move first across NW portions of the area before getting into the metro towards midday. Afterwards the front should get southeast of the area later into the afternoon. The eastern half of the area will experience a somewhat humid start to the day with dew point readings mainly in the lower half of the 60s. However, west of the cold front dew points are noticeably lower, primarily in the 50s. It is this air mass that will begin to push across later in the day on a NW flow bringing more of an early fall feel to the region. It will take some time for the drier and cooler air to push in, thus another unseasonably warm day across the region with primarily lower and middle 80s region wide which is close to 10 degrees above normal for this time of year. The front will push through dry with no sensible weather impacts as BUFKIT profiles only hint the potential for a few clouds around 5 kft. Therefore expect a mainly sunny and unseasonably warm day.
For this evening dew point readings begin to drop more noticeably, and after midnight most dew point readings are progged via MOS to get down into the 40s. A NE wind should prevent decoupling in some spots and may limit radiational cooling to some degree despite clear skies. Minimum temperatures will likely be in the middle and upper 40s in the coolest NW interior locations, to mainly 50s closer to the coast, and close to 60 in the NYC metro.
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.SHORT TERM /SATURDAY THROUGH SUNDAY NIGHT/... High pressure then moves directly over the area later Saturday into Saturday night as the pressure gradient decreases and the winds veer more to the NE and E. Temperatures with the cooler airmass in place should be about 10 degrees or so cooler during the day Saturday compared to the previous day. With lighter winds Saturday night temperatures may be a few degrees cooler than the previous night in a few of the more rural locations. Otherwise minimum temperatures Saturday night will be similar to the previous night.
With the high getting further east for the second half of the weekend, a few mid and upper level clouds will attempt to encroach from the WSW. Look for another mostly sunny day, especially for eastern locations on Sunday, with more in the way of mid and high clouds further west across the area towards Sunday afternoon. Another seasonable day temperature wise with mainly lower 70s for daytime maxes. High pressure will remain in control Sunday night despite weakening some and getting a bit further east. The dry regime will continue into Sunday night with partly cloudy to mostly clear skies expected.
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.LONG TERM /MONDAY THROUGH THURSDAY/... By early next week, an elongated sfc high pressure ridge extends westward from the north Atlantic into New England and the Mid Atlantic, with weak ridging in place aloft. Fair weather persists Monday and with a general SE-S flow temperatures are progged near normal, with highs in the 70s throughout.
On Tuesday, a northern stream trough sends a weak front toward the area, likely moving through Tuesday night. The front appears fairly moisture starved, and forecasting only lower end chance PoPs (25- 35%) Tuesday afternoon into night. Temperatures climb above normal on a SW flow, with highs into the upper 70s and lower 80s.
Guidance continues to offer varying solutions by mid to late next week, but big picture suggests a blockier pattern, with the GEFS and EPS indicating a rex block setting up over the Central US as ridging builds into central Canada and a closed low forms over the Southern Plains. This could allow a surface warm front to approach from the southwest, and maintained national blended guidance yielding PoPs between 15-25% Wednesday into Thursday.
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.AVIATION /18Z FRIDAY THROUGH WEDNESDAY/... High pressure continues to build in from the northwest through Saturday.
VFR.
Generally a NW flow expected through Friday afternoon, and at times more northerly. Occasional gusts mainly less than 20 kt possible during the afternoon. The flow becomes more northerly by early this evening, with speeds remaining near 10 kt overnight. Winds then become more NE late tonight into Saturday morning, likely increasing a few kts. And toward 18Z Saturday winds become E.
...NY Metro (KEWR/KLGA/KJFK/KTEB) TAF Uncertainty...
No unscheduled amendments expected.
.OUTLOOK FOR 18Z SATURDAY THROUGH WEDNESDAY...
Saturday afternoon - Monday: VFR.
Tuesday: MVFR possible with chance of showers in the afternoon and evening. A thunderstorm is also possible.
Wednesday: MVFR possible with a chance of showers.
Detailed information, including hourly TAF wind component forecasts, can be found at: https:/www.weather.gov/zny/n90
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.MARINE... Sub advisory conditions anticipated on the coastal waters for today through this evening with 2 to 3 ft seas on the ocean. A brief period of marginal small craft conditions for southern portions of the ocean zones are expected late Saturday morning-afternoon with 4 to 5 ft seas, with a few gusts of 20 to 25 kt possible. Otherwise, conditions subside quickly later Saturday afternoon and evening with sub advisory conditions prevailing on an easterly flow into Saturday night. Ocean seas are then expected to climb slowly Sunday night into Monday. Marginal small craft seas are likely by late Monday night, with a higher likelihood of more widespread 5 ft seas on Tuesday.
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.HYDROLOGY... There are no hydrologic concerns through the entire forecast period with dry conditions anticipated.
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.TIDES/COASTAL FLOODING... The rip current risk for today will be low. As a NE to ENE flow after a cold frontal passage increases to around 10-15 kt Sat morning and seas build to 4 ft/5 sec (more favorable for longshore currents) the rip current risk will become moderate on Sat.
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.OKX WATCHES/WARNINGS/ADVISORIES... CT...None. NY...None. NJ...None. MARINE...None.
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SYNOPSIS...JE NEAR TERM...JE/JM SHORT TERM...JE LONG TERM...DR AVIATION...MET MARINE...JE HYDROLOGY...JE TIDES/COASTAL FLOODING...
NWS OKX Office Area Forecast Discussion