Area Forecast Discussion
Issued by NWS Binghamton, NY
Issued by NWS Binghamton, NY
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783 FXUS61 KBGM 191843 AFDBGM Area Forecast Discussion National Weather Service Binghamton NY 143 PM EST Wed Nov 19 2025 .SYNOPSIS... High pressure in place and mostly clear skies this evening will make for a cold night. Clouds stream in late tonight into tomorrow ahead of a cold front that passes through Thursday night into Friday. Rain with the front will be light but a low passing through PA may bring some better chances of rain to the Poconos and Wyoming Valley Friday. && .NEAR TERM /THROUGH THURSDAY NIGHT/... A surface high pressure system builds in today with calm winds and mostly sunny skies. Some high clouds start to advect into the region from the west as the upper level ridge flattens out and subtle warm air advection begins aloft. These clouds will be fairly thin and with the calm winds and dry air in place, overnight lows will get colder than modeled so the NBM10th was blended in to drop lows into the teens and 20s. A shortwave begins to approach from the west Thursday with thickening cloud cover through the day. If the clouds can get opaque enough in the morning, day time highs may remain cold if most solar radiation is blocked off preventing much heating but highs were not deviated from model guidance for now. && .SHORT TERM /FRIDAY THROUGH SATURDAY NIGHT/... Shortwaves are looking to pass both north and south of our region Friday into Saturday though with a cold front passing through associated with the northern wave, some light rain or mixed precipitation is likely for the Southern Tier and north. In NEPA, the southern shortwave is slowly trending north so the northern edge of heavier precipitation may clip the Poconos and the Wyoming Valley. Temperatures aloft with the southern shortwave are warm so the precipitation rate is likely to remain all rain. A cooler, drier air mass moves in Saturday night into Sunday with high pressure building in. 850 mb temperatures only fall to around - 4C and with the lakes cooler, with SSTs in the 40s now, there is not enough cold air aloft to generate much instability so lake effect precipitation will have a tough time forming. Still left in some chances of precipitation just in case some cooler air can advect in or if there is enough cloud formation to generate a bit of drizzle downwind of the lakes. && .LONG TERM /SUNDAY THROUGH TUESDAY/... Next week starts off on the drier side with high pressure and ridging in place. Trends in the models have been towards a flatter ridge so high temperatures will remain closer to seasonable averages rather than being well above. Ensemble mean flow at 250 mb shows good agreement in a strong zonal jet over the Northeast US with some troughing in the central and western US. This is favorable for lee cyclogenesis so there is likely going to be some low pressure systems developing along the front range of the Rockies and moving into the Great Lakes region. Right now most model members do not have very deep lows forming but ensemble mean QPF has trended higher slowly for Tuesday into Wednesday with surface SLP means showing a closed low in the Great Lakes region. Chances of precipitation were kept high for mid next week as well as precipitation type kept mostly rain except at higher elevations overnight with the SW flow and low passing to the west. && .AVIATION /18Z WEDNESDAY THROUGH MONDAY/... VFR conditions are expected for the CNY terminals throughout the TAF period. A cloud deck at SYR and RME is expected through early this afternoon, but ceilings should remain VFR. AVP will also see ceilings remain just above 3K feet through this afternoon before clearing later today. Outlook... Thursday afternoon through Friday...Mostly VFR. Friday night through Saturday...Off and on periods of rain during the day and snow/wintry mix overnight with associated restrictions. Sunday through Monday...High pressure builds back into the region with mostly VFR conditions expected. && .BGM WATCHES/WARNINGS/ADVISORIES... PA...None. NY...None. && $$ SYNOPSIS...AJG NEAR TERM...AJG SHORT TERM...AJG LONG TERM...AJG AVIATION...JTC/MPK