Area Forecast Discussion
Issued by NWS Binghamton, NY
Issued by NWS Binghamton, NY
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978 FXUS61 KBGM 220615 AFDBGM Area Forecast Discussion National Weather Service Binghamton NY 115 AM EST Sat Nov 22 2025 .SYNOPSIS... A weak wave of low pressure will pass DELMARVA overnight and spread light rain into northeast Pennsylvania. Another weak front and clipper system passes by just to the north on Sunday, with a chance for a few rain or snow showers in Central NY. High pressure returns on Monday, bringing mainly sunny skies and mild temperatures across the region. && .NEAR TERM /THROUGH TODAY/... The latest trend in the model guidance for tonight is to bring the weak wave of low pressure a little further north and tracking off the Mid Atlantic Coast Saturday morning. light rain showers are expected across much of NE PA overnight with rainfall amounts generally less than a tenth of an inch. Saturday will feature a colder NW flow pattern, with 850mb temps around -5C or -6C by afternoon. This may try to develop a weak lake effect response...but likely this will only be an increase in clouds across Central NY and possibly a flurries or light sprinkles. Otherwise, skies look to remain overcast to mostly cloudy through much of the day across Central NY...with clearing skies and some afternoon sun likely for NE PA and Sullivan County NY. For Saturday night, skies will clear, so adjusted low temperatures down a few degrees below NBM guidance, with lows down into the low 20s most areas. && .SHORT TERM /TONIGHT THROUGH MONDAY NIGHT/... Warm front pushes across the area Sunday as a weak clipper system passes by just to the north by Sunday evening. This system will keep more clouds around north of the Twin Tiers on Sunday, with a few rain or wet snow showers further north in Central NY. NE PA remains dry and partly to mostly sunny on Sunday. This system will push a cold front through the region Sunday night with brief cold air advection and NW flow developing Sunday night into Monday morning. T850 dips to -6C to -8C depending on the model, so cold see a brief period of lake effect snow showers early Monday morning. At this time, boundary layer temperatures are marginal and may be too warm for any snow in the lower elevations, but the hills could see up to a half inch of snow by daybreak on Monday. A large high pressure system then settles into the Mid-Atantic and Northeast US for Monday. This will bring seasonably mild weather for the start of the week. Clouds will be on the increase for Monday night, out ahead of the next warm front. Current model guidance timing keeps it dry overnight though with lows mainly in the 30s. && .LONG TERM /TUESDAY THROUGH FRIDAY/... Warm air advection on Tuesday with a warm front pushing into the region. This will bring periods of rain showers and plenty of clouds, but temperature will be above average and on the mild side through Wednesday, with highs well into the 50s on Wednesday. A strong cold front approaches the area sometime around Thanksgiving (Thursday). The exact timing and magnitude of the cold air mass remains uncertain at this time, but models have been trending warmer and for a shorter-lived cold period than previous runs have advertised. Still expecting a couple of days of below average readings by the end week. The cold air advection may also favor lake effect snow showers for portions of the forecast area, but still too early to pin point at this time. && .AVIATION /06Z SATURDAY THROUGH WEDNESDAY/... Showers are moving in from the west tonight, which will bring a smattering of IFR and MVFR restrictions. AVP should start seeing rain fall in the next hour or so and with that, current MVFR restrictions should periodically fall to IFR for the first few hours of rain and then lock into IFR conditions once the lower atmosphere becomes fully saturated. IFR restrictions are expected to last into the mid morning hours. Rain should move out of the area then with MVFR ceilings returning into the afternoon, followed by VFR by the evening. RME is a tricky forecast tonight as it is currently foggy there with IFR visby but no model guidance has shown this outside of the NAM/NAMNest runs. While these models tend to over produce IFR restrictions, it rained at the terminal earlier this evening for about an hour, which provided enough moisture to bring MVFR visby to the area for the past few hours which these models had. Visby has dropped to 1-2 miles over the past 30 minutes (which these models had as well) and given not much is expected to change tonight with cloud cover remaining the same and temps and dewpoints sticking close to each other, confidence was high enough to keep IFR visby at RME through the overnight hours(which the NAM/NAMNest also has). Usually I do not like to rely on one model but RME is a hard terminal for forecast for as guidance does not pick up on fog very well in this area and we have missed it multiple times over the past few months. IFR should lift by mid-morning with VFR conditions remaining through the day. ELM/BGM/ITH/SYR should see MVFR ceilings tonight, lifting to VFR by the afternoon hours. Outlook... Saturday night...Mainly VFR. Sunday...Scattered rain/snow showers and associated restrictions possible. Monday...Mainly VFR. Tuesday into Wednesday...Chance for rain showers and associated restrictions. && .BGM WATCHES/WARNINGS/ADVISORIES... PA...None. NY...None. && $$ SYNOPSIS...MPK NEAR TERM...MPK/MJM SHORT TERM...MPK/MJM LONG TERM...MPK/MJM AVIATION...JTC