FXUS61 KBGM 042333 AFDBGM Area Forecast Discussion National Weather Service Binghamton NY 733 PM EDT Sat May 4 2024 .SYNOPSIS... Showers will move northward into the region tonight ahead of a warm front to our south. Showers will end by Monday with high pressure building into the region. However, after a brief break Tuesday additional low pressure will bring additional showers through the end of next week. && .NEAR TERM /THROUGH SUNDAY NIGHT/... 630 PM Update... Rain showers have gradually moved into northeast PA this evening. Therefore slightly increased Pops over northeast PA using a blend of, NAMNest, HRRR, current radar, and the official forecast. Showers continue to push into the rest of the region within the next few hours. Otherwise adjusted temperatures and dew points using a blend of current obs and the forecast. No other changes were needed at this time. 330 PM Update... A south to southeasterly flow will allow moisture to be lifted along a warm front to our southwest leading to the development of widespread showers tonight. These showers should continue most of Sunday before the primary cold front moves through Sunday night. In terms of rainfall most locations should get around a half inch. Localized terrain enhancements are possible north of the NY Thruway with the rainfall allowing for some locations to see an inch or so. Temperatures tonight should be able to fall to around 50 even with the clouds and showers but then struggle to rise much on Sunday. Temperatures then look rather steady or perhaps rise slightly in the 50's Sunday night with a weak LLJ ahead of the primary cold front. && .SHORT TERM /MONDAY THROUGH TUESDAY NIGHT/... 245 PM Update... A weak surface trough will slowly exit the region to the east Monday morning. Lingering showers are expected to remain across the Twin Tiers into the early afternoon hours, with a possible rumble of thunder east of I-81 in NEPA. A ridge of high pressure over the north central US will amplify Monday morning, generating a surface high over the Great Lakes. This will slide eastward during the day Monday, bringing NW flow and dry air into the region. Highs on Monday will be in the upper 60s to mid 70s. High pressure overhead Monday night will bring, mostly clear to partly cloudy skies and very light to calm winds. This will be a nice setup for radiational cooling, dropping temperatures into the low to mid 40s. Currently not seeing any frost for our growing zones, but we will have to monitor this as we get closer. Tuesday will be a wonderfully pleasant spring day as the ridge and accompanying surface high moves overhead, bringing dry weather and mostly sunny skies. Winds shift to WSW during the afternoon, allowing some warmer temps to push into the Twin Tiers. Highs will reach the mid to upper 70s here, with low to mid 70s to the north. Tuesday night will not be as cool as the night before as SW winds advect in a warm, moist airmass accompanied by increased cloudiness. Temps will fall into the mid 50s for most, with upper 50s in the Wyoming Valley and upper 40s in the Tug Hill and Catskills. && .LONG TERM /WEDNESDAY THROUGH SATURDAY/... 245 PM Update... The nice, dry weather does not stick around for long as a positively tilted upper level trough will sit over the eastern US, pushing shortwave after shortwave through the region during this period. The first shortwave will push through Wednesday, bringing in a warm front during the morning hours and scattered rain showers to the region. Guidance is showing very low chances( <20%) of CAPE reaching 500 j/kg across the Twin Tiers during the afternoon. Rain showers will continue through the afternoon, with a slight chance of an isolated thunderstorm over NEPA. The upper level trough will drift eastward through the end of the week, pushing multiple shortwaves and associated rain showers through the area Thursday through Sunday. The upper level trough will move overhead Friday, keeping temps cool for the weekend as a Canadian airmass slides in from the north. && .AVIATION /00Z SUNDAY THROUGH THURSDAY/... 730 PM Update Gradual lowering of ceilings to MVFR this evening with showers developing. Then, IFR expected to develop at ELM, BGM and AVP by around 06-08z tonight...spreading north to ITH during the early morning hours (11-13z) Sunday, and to RME/SYR by late morning or Sunday afternoon. LIFR and Below Alt Minimum CIGs are likely at ELM, ITH, BGM and even AVP most, if not all day on Sunday...with CIGs between about 400-900 ft agl. Visibilities also come down to MVFR and even occasionally IFR on Sunday (2-4SM) as rain, mist & patchy fog continue all day. Southerly winds fairly consistent around 8-15 knots through the TAF period. However, occasional gusts of 15-20 knots can not be ruled out. Marginal LLWS can not be ruled out from 14-17Z Sunday, especially at SYR. Outlook... Sunday night...Showers gradually ending. Widespread IFR to even LIFR restrictions continue areawide. Monday...Lingering Ceiling restrictions in the morning, then becoming VFR. Monday Night and Tuesday...Mainly VFR expected. Tuesday night through Thursday... Periods of showers with some restrictions. && .BGM WATCHES/WARNINGS/ADVISORIES... PA...None. NY...None. && $$ SYNOPSIS...MWG NEAR TERM...ES/MWG SHORT TERM...JTC LONG TERM...JTC AVIATION...MJM/MWG