


Area Forecast Discussion
Issued by NWS Binghamton, NY
Issued by NWS Binghamton, NY
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252 FXUS61 KBGM 160558 AFDBGM Area Forecast Discussion National Weather Service Binghamton NY 158 AM EDT Wed Jul 16 2025 .SYNOPSIS... High pressure remains in place through tonight bringing mostly clear skies and warm, muggy conditions. Very warm and humid conditions remain in place through Thursday with scattered showers and thunderstorms starting Wednesday afternoon and evening. A few storms could produce heavy downpours. It looks to dry out with lower humidity levels for Friday and Saturday, along with seasonably warm temperatures. && .NEAR TERM /THROUGH THURSDAY/... 200 PM Update... Air quality will be an issue through this evening across CNY as smoke aloft and haze from Canada slides into the region, thus an Air Quality Alert has been issued for small particulates across most of Central NY (except Sullivan county). Otherwise, skies will be mainly sunny with seasonably warm temperatures this evening. Tonight remain mostly clear, warm and muggy as the ridge axis slides east of the area and SW flow pushes a southern airmass into the region. Temperatures and dewpoints will be in the mid to upper 60s once again. There could be some patchy fog around. Wednesday will remain hot and muggy, with temperatures and dewpoints a few degrees warmer than Today. Heat indices are expected to reach advisory criteria for the Finger Lakes, portions of the Southern Tier and Mohawk Valley. Confidence has increase, and a Heat Advisory is now in effect for these area from 11 AM to 8 PM Wednesday. Highs will be in the mid 80s to lower 90s and with dew points 70 to 75 peak heat indices will reach well into the 90s over the region. A strong shortwave is expected to move into the area late Weds afternoon or early evening, bringing increasing clouds, showers and t`storms across the region, which could eventually lower temperatures by the evening, at least for western portions of the area. There remains uncertainty on exact timing for the clouds showers and storms to arrive, but the latest guidance is trending later, mainly after 4-6 PM for most locations. Model soundings show a very moist atmosphere with long, skinny CAPE and deep warm cloud depths, leading to storms producing heavy rain and possible flash flooding. PWATs will reach 1.6 to 1.9 inches by Wednesday evening, along with MLCAPE of 1500-2500 J/kg expected. Bulk shear is fairly light, between 15-25 kts which should limit severe storm potential. However, with the high instability a stray stronger or even isolated severe pulse storm cannot be ruled out. SPC now has the western half of the area in a Marginal Severe Risk (level 1 of 5). The main potential with any of these stronger storm will be isolated damaging wind gusts. DCAPE values on the 12z GFS soundings have increase to around 1000 J/kg in the late afternoon & evening, and this indicates the potential for those wind gusts with the storms. A Slight Risk for excessive rainfall leading to flash flooding is present across NEPA Wednesday afternoon into Wednesday night. With the recent heavy rain over this area Sunday and Monday, flash flooding will be achieved easier (with lower flash flood guidance) thus necessitating the Slight Risk. The rest of the region is under a Marginal Risk where slow moving storms dropping heavy rain could cause isolated flash flooding issues. At this time, confidence was not quite high enough on the timing and location of convection to issue any flood watches, but if confidence does increase watches may be needed. Scattered showers and storms continue into Wednesday night along with mainly cloudy skies and warm, humid conditions. Overnight lows only dip down into the upper 60s and lower 70s areawide. && .SHORT TERM /THURSDAY NIGHT THROUGH FRIDAY NIGHT/... 200 AM Update... Zonal flow aloft continues Thursday night as a cold front approaches the region. This will allow showers to persist into the overnight period gradually phasing out as drier air filters in. NBM winds were too low ahead of the front, therefore bumped them up during this period. Temperatures will range in the low to mid 60s. Winds shift northwest behind the front with cooler air advecting into the area by Friday morning. Less humid conditions are expected with highs in the mid to upper 70s along with dew points in the mid 50s to low 60s. High pressure should keep conditions dry with mostly sunny skies. Northwest flow and clear skies continue into Friday night helping temperatures dip into the low to mid 50s. && .LONG TERM /SATURDAY THROUGH TUESDAY/... 200 AM Update... High pressure holds into Saturday with another dry and mostly sunny day in store. Although clouds begin to creep into the region Saturday evening as the next frontal system approaches. Rain showers and thunderstorms will move through Saturday night into Sunday. Drier conditions follow on Monday as the front is south of the area. Weak ridging is in place on Tuesday with the potential for showers to develop as a few weak waves attempt to move in. Temperatures this period start off milder with highs in the mid 70s to low 80s through Monday. Southwesterly flow returns by Tuesday with temperatures beginning to climb into the upper 70s to mid 80s. Overnight lows will otherwise range in the 60s. && .AVIATION /06Z WEDNESDAY THROUGH SUNDAY/... VFR conditions are expected throughout most of this TAF period. Haze due to wildfire smoke is present over the region and has reduced visibilities down to around 7 miles at times. Some guidance has fog at AVP, BGM, and ELM after 06z Wednesday, which is also supported by model soundings. However, confidence is low given that the forecasted lows will be above the crossover temperatures. Ensemble guidance also has less than a 15% chance for fog overnight. To stay consistent with the previous forecast, tempo groups were used for any mention of fog. Skies will be mostly clear overnight but sky cover increases tomorrow afternoon ahead of the next system. There is a chance for showers and thunderstorms at all terminals Wednesday afternoon but confidence is too low to include in the TAFs at this time as coverage looks to be scattered. Winds become light and variable overnight. Then winds settle out of the south- southwest late Wednesday morning with sustained speeds between 5 and 10 kts. Outlook... Wednesday night...Scattered showers and thunderstorms could bring occasional restrictions. Thursday...Restrictions likely with a few rounds of showers and thunderstorms. Friday through Saturday...Mainly VFR. Sunday...Occasional restrictions possible in showers and thunderstorms. && .BGM WATCHES/WARNINGS/ADVISORIES... PA...None. NY...Heat Advisory from 11 AM this morning to 8 PM EDT this evening for NYZ015>018-023>025-036-037-055-056. Air Quality Alert from 11 AM this morning to 11 PM EDT this evening for NYZ062. && $$ SYNOPSIS...MJM NEAR TERM...MJM SHORT TERM...ES LONG TERM...ES AVIATION...BTL