Area Forecast Discussion
Issued by NWS Upton, NY

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726 FXUS61 KOKX 091838 AFDOKX Area Forecast Discussion National Weather Service New York NY 238 PM EDT Sun Jun 9 2024 .SYNOPSIS... A cold front moves through on Sunday followed by a secondary weak cold front on Monday. An upper level low pivots through Tuesday, followed by high pressure for the middle of the week. A cold front approaches Friday and moves through Friday night. High pressure builds to begin next weekend. && .NEAR TERM /UNTIL 6 AM MONDAY MORNING/... Updated temperatures and PoPs into the afternoon to reflect the latest observations and radar returns as showers move through the area. Showers for eastern areas will come to an end by 18Z/2PM. Sky cover will clear a bit before sunset, improving first west and spreading east. The sooner the cloud cover breaks, the warmer afternoon highs will be able to get. SW gusts remain possible 20-30 mph through the afternoon as the cold front makes its way through the area. Mostly dry conditions are expected behind the front with a WNW wind lowering dewpoints and clearing cloud cover. However, one last bit of upper-level energy around the base of the trough could lead to an additional round of isolated showers in the late evening today, mainly for the northern interior areas of the CWA. We`ll continue to dry and clear and into tonight with cold air advection aloft at 850 mb. Highs will be in the middle to upper 70s, possibly near 80 for the NYC metro. Lows in the mid 50s to low 60s are expected tonight. && .SHORT TERM /6 AM MONDAY MORNING THROUGH MONDAY NIGHT/... An upper trough continues to deepen over the northeast as surface high pressure noses in from the west. Dry conditions remain in place on Monday with mostly sunny conditions. It will feel much nicer outside with high temperatures in the 70s close to seasonal averages and dewpoints 10 degrees lower than Sunday in the afternoon. && .LONG TERM /TUESDAY THROUGH SUNDAY/... Suppressed heights are anticipated with an upper level low pivoting through to begin the period on Tuesday. Heights then recover into mid week with more of a quasi-zonal long wave pattern for much of the week. A weakness then likely develops in the 500 mb long wave pattern Friday into Saturday. A mainly dry period is expected. The only chances for any shower activity will come Tuesday with the upper level low feature, then late in the week towards late Friday and Friday night with the arrival of a cold front. With warmer temperatures and likely more instability, there will be a chance of thunderstorms with any shower activity late week. Seasonable temperatures are forecast on Tuesday, before some weak ridging moves in for mid week. Temperatures will get a few degrees warmer on Wednesday, followed by above normal temperatures Thursday and Friday. The speed, and thus timing of a cold front late in the week and any associated clouds brings more uncertainty around temperatures very late in the period for Friday and Saturday. Consensus guidance is suggesting that the front arrives later Friday night, so at this time going with the warmer trend with temperatures for Friday and Friday night followed by an air mass change to begin next weekend on Saturday. Stay fairly close to the NBM guidance through the period. && .AVIATION /18Z SUNDAY THROUGH FRIDAY/...
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A weak cold front passes through tonight with high pressure building in from the west Monday. VFR through the TAF period. W-NW winds gusting to 20 to 25 kt through this afternoon should begin subsiding in the evening to a mainly light W-SW flow around 10 kt. W to NW winds return Monday and remain around 10 kt. NY Metro (KEWR/KLGA/KJFK/KTEB) TAF Uncertainty... Timing of gusts subsiding may be off by 1-2 hours. OUTLOOK FOR 18Z MONDAY THROUGH THURSDAY... Monday-Thursday: VFR expected. Friday:VFR with MVFR conditions possible in showers in the afternoon and evening. Detailed information, including hourly TAF wind component forecasts, can be found at: https:/www.weather.gov/zny/n90
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&& .MARINE... Wind gusts over all waters may approach 25 kts today, but in general, expect 25 kt gusts to only be occasional with 3-4 foot waves. Conditions are expected to remain below SCA through the beginning of next week. Conditions will remain below small craft levels through midweek with essentially only up to 2 ft ocean seas. The winds become more southerly into Thursday with marginal small craft conditions possible on the ocean by Thursday night. && .HYDROLOGY... No hydrologic concerns exist through the forecast period. && .TIDES/COASTAL FLOODING... For the Atlantic ocean beaches, expect a moderate rip current risk on Sunday, lowering to low on Monday for western beaches, then dropping to low on all beaches by Tuesday. && .OKX WATCHES/WARNINGS/ADVISORIES... CT...None. NY...None. NJ...None. MARINE...None. && $$