


Area Forecast Discussion
Issued by NWS Binghamton, NY
Issued by NWS Binghamton, NY
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814 FXUS61 KBGM 181824 AFDBGM Area Forecast Discussion National Weather Service Binghamton NY 224 PM EDT Fri Apr 18 2025 .SYNOPSIS... Temperatures will continue warming through Saturday before a cold front brings showers and possible thunderstorms in the afternoon. A brief cool down on Sunday will be followed by another warming trend and chance of rain showers early next week. && .NEAR TERM /THROUGH SATURDAY NIGHT/... 215 PM Update... A weak pseudo warm front will form along and just north of the Thruway corridor tonight. Falling heights and a return of low level moisture will increase chances for showers and sprinkles for the Finger Lakes region and Western Mohawk Valley. Airmass is quite dry here at this time and existing showers forming off Lake Erie and riding into WNY should tend to dissipate as they arrive here later this afternoon...but have included mention of sprinkles before the better chances kick in later ahead of a cold front. Saturday will feature changeable conditions with a very mild start and temperatures climbing into the 70s areawide...especially after starting off from a mild overnight in the 50s. A cold front will move through during the afternoon hours with showers and scattered thunderstorms. Model instability shows a few hundred units of CAPE, but the 0-6km and 0-3km shear will be quite impressive. Generalized thunder is in the SPC outlook which seems fine, but we`ll have to keep an eye on convective parameters ahead of the front and supporting short wave. Frontal passage occurs Saturday evening with showers ending and colder air filtering in overnight on blustery NW winds. && .SHORT TERM /SUNDAY THROUGH MONDAY NIGHT/... 215 PM Update... High pressure builds in for Sunday with seasonably cool temperatures and no noted hazards expected. The pattern remains transient heading into Monday with another low crossing through the Great Lakes and warm frontal clouds and showers extending into NY and PA. Overall...trends have been pulling back on much shower activity during the day with higher probabilities expected on Monday night with the trailing cold front. Temps rebound on Monday but according to the latest NBM not quite as warm as Saturday. Warm advection will be good so if the warm sector clouds thin out more than planned, we may be nudging the maxes up slightly. && .LONG TERM /TUESDAY THROUGH FRIDAY/... 215 PM Update... This period looks generally benign in terms of any significant or hazardous weather on the horizon. Anomalous high pressure controls conditions through at least Thursday allowing for a gradual warming trend with daytime temperatures reaching back into the 60s and low 70s. Models diverge quite a bit in handling the positioning and strength of the broad ridging after about Wednesday and any subtle waves passing over the top with individual deterministic guidance showing polar opposite solutions in some time periods. Will run with the blended NBM guidance on this lower confidence forecast which suggests the next fairly robust probability for noticeable shower activity comes Thursday night or Friday. && .AVIATION /18Z FRIDAY THROUGH WEDNESDAY/... VFR will continue into early Saturday morning with occasional mid and high ceilings. A warm front passes through the region this evening followed by the development of a strong low level jet through the overnight. Top of inversion winds of 40-50 kts are expected along with layers of +/- 20 KT LLWS at or below FL020 with moderate to high confidence. A cold frontal passage on Saturday will begin triggering showers from north to south prior to 18Z...mainly for the northern 3 terminals of KITH-KSYR-KRME. Deeper convection and thunderstorms will be possible after this period. Ceiling restrictions will be likely mainly after 15Z. Gusty S-SSW winds 15-25 kts into this evening ease a bit overnight before becoming more SW and gusty again on Saturday morning. Outlook... Saturday...Showers ending. Mainly MVFR conditions. Sunday...Mainly VFR. Monday...Chance of showers and possible restrictions. Tuesday...Becoming mainly VFR. && .BGM WATCHES/WARNINGS/ADVISORIES... PA...None. NY...None. && $$ SYNOPSIS...JAB NEAR TERM...JAB SHORT TERM...JAB LONG TERM...JAB AVIATION...JAB