Area Forecast Discussion
Issued by NWS Binghamton, NY
Issued by NWS Binghamton, NY
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922 FXUS61 KBGM 240626 AFDBGM Area Forecast Discussion National Weather Service Binghamton NY 226 AM EDT Mon Aug 24 2026 .WHAT HAS CHANGED... PoPs were increased early this morning with a band of showers rotating through mainly before daybreak. PoPs were also increased along with shower coverage this afternoon and Tuesday afternoon with lake enhancement expected. && .KEY MESSAGES... 1) Scattered showers are expected to continue into Tuesday, most numerous across Central NY with some lake enhancement. 2) High pressure builds in for a brief lull in wet weather Tuesday night into Wednesday, then additional showers and thunderstorms are expected to return Thursday into Friday before drying back out heading into the weekend. && .DISCUSSION... KEY MESSAGE 1... A broad upper level trough remains over the region today with a closed low off to our north that will slowly drift east into western Quebec. A potent shortwave embedded in the flow will swing through the area early this morning and help drawn in some noticeably cooler air. As this feature moves through, some light showers are expected to accompany it prior to daybreak. Southwesterly flow will become more westerly this afternoon, and northwesterly into Tuesday, tapping into lake moisture. With cool air aloft this afternoon, steepening low-level lapse rates, and up to a few hundred J/kg of MUCAPE, scattered showers are expected to develop, most widespread from the Twin Tiers on north. Some small hail can`t be ruled out in the heaviest of showers. Lake effect rain showers are expected to become more concentrated north of the Southern Tier tonight before northwesterly flow Tuesday and lake enhancement with another upper level shortwave rotating through along the base of the departing upper trough spreads showers farther south and east once again. PoPs were increased from the NBM across the Twin Tiers both this afternoon and Tuesday afternoon as the NBM tends to be underdone with shower coverage and not far enough SE in this set up. It will be quite cool today with highs in the mid 60s to the lower 70s. Portions of SW Steuben County may even struggle to reach the lower 60s. Lows tonight will be mainly in the upper 40s to the mid 50s. Highs Tuesday again generally range from the mid 60s to the low 70s. KEY MESSAGE 2... High pressure briefly builds in Tuesday night into Wednesday with dry conditions. The next cold frontal boundary starts to approach from the west Thursday and moves through Thursday night into early Friday with scattered showers and thunderstorms. An area of low pressure may form near the Southeast Coast and lift north ahead of the front and enhance the moisture across the area which could result in some localized downpours. WPC does has NE PA and the southern Catskills outlooked in a Marginal Risk (level 1 out of 4) for excessive rainfall this far out for Thursday/Thursday night, so this will be a trend to monitor. High pressure looks to build back in with drier conditions for the start of next weekend. Temperatures will be on the rise Wednesday through Friday with highs generally in the mid 70s to near 80 degrees. The Lake Plain and portions of the Finger Lakes do look a bit warmer on Thursday ahead of the front with some places reaching the low and mid 80s. && .AVIATION /06Z MONDAY THROUGH FRIDAY/... Rain showers are moving east across the area early this morning. This band of rain could bring occasional MVFR restrictions to ELM over the next few hours (06-09z), but it should weaken and become more scattered to isolated as it approaches the other NY terminals. Behind this rain there could be a short window for fog development at ELM, with IFR tempo from 09-12z early this morning. It should remain generally VFR elsewhere through the morning and early afternoon hours. Lake effect rain showers likely develop later this afternoon, with PROB30 groups included for brief MVFR restrictions at RME, SYR,ITH,ELM and BGM mainly between about 19z and 01z. Can`t rule out an isolated thunderstorms, but chances were too low to include at any TAF site at this time. Heading into the late evening hours MVFR CIGs drop down from the north and overspread SYR, RME, ITH and ELM between 03-06z Tuesday. There could also be additional lake effect rain showers during this timeframe, especially at SYR and RME. Light and variable winds under 5 kts expected through the early to mid morning hours today. Winds then turn southwest between 5 to 15 kts this afternoon, before diminishing later this evening. Outlook... Tuesday through Thursday...Mainly VFR, morning fog potential at ELM. Friday...Potential restrictions with an incoming frontal system. && .BGM WATCHES/WARNINGS/ADVISORIES... PA...None. NY...None. && $$ DISCUSSION...DK AVIATION...AJG/MJM