Area Forecast Discussion
Issued by NWS Burlington, VT
Issued by NWS Burlington, VT
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550 FXUS61 KBTV 140625 AFDBTV Area Forecast Discussion National Weather Service Burlington VT 125 AM EST Fri Nov 14 2025 .SYNOPSIS... Some mountain light snow showers are expected today, as drier air arrives to northern New York and Vermont, though skies may remain partly to mostly cloudy. A large area of low pressure arrives late tomorrow, bringing widespread precipitation in the form of a wintry mix and rain. Sharply colder and breezy weather, with precipitation changing to snow, is anticipated for Sunday, and additional snow showers will follow early next week. && .NEAR TERM /THROUGH TONIGHT/... As of 1253 AM EST Friday...Northwesterly flow will be prevalent across the forecast area today as a longwave trough rotates off the coast of Nova Scotia. We`ll continue to have some persistent shallow moisture allowing for additional light mountain snow showers today. This northwesterly flow combining with Lake Champlain temperatures in the upper 40s may result in some lake effect clouds and even some showers for the area from Charlotte, Monkton, and Hinesburg all the way to Granville and Rochester, Vermont. These areas could potentially see a quick inch of snowfall if the favorable conditions materialize. A quick dusting could occur anywhere snow showers occur throughout the day today, but most likely accumulations will be in the mountains and under the potential lake effect band. Under cloudy skies and northwest flow, we can expect another cold day with highs only reaching the 30s and lower 40s, a good 5-10 degrees below seasonal normals for mid November. Tonight, we could have occasional clearing in the valleys, leading to temperatures falling into the mid teens and 20s, again about 5 degrees below average. As we`ve seen some patchy freezing fog early this morning already, we may be in for another night of patchy valley freezing fog in places as model soundings show saturation of the lower levels of the atmosphere during the night. && .SHORT TERM /SATURDAY THROUGH SUNDAY/... As of 1253 AM EST Friday...After a chilly morning with the potential for some patchy valley freezing fog, Saturday should have warming mid levels throughout the day, though the lower elevations will likely remain chilly and below seasonal averages with temperatures only hitting the 30s and lower 40s in the afternoon. Low pressure tracks and timing amongst models have come into a better agreement in the last 24 hours, with consensus bringing the low across the St. Lawrence Valley and Adirondacks, then transferring energy to a developing coastal low along the coast of Maine. Precipitation is likely to begin across the St. Lawrence Valley tomorrow afternoon, spreading eastward across the forecast area into the evening. Total QPF amounts will be around 0.35-1.00" Saturday afternoon through Sunday with most likely freezing rain occurring from 4 PM Saturday through 5 AM Sunday, as models continue to inch the timing slightly faster. Freezing rain amounts are forecast to be up to a quarter of an inch, though this will likely be isolated to the Massena, New York, area, while much of the Champlain Valley, the rest of St. Lawrence County, and the Connecticut River Valley look to escape much, if not all, of the ice. Other areas of concern will be the Adirondacks, Greens, and areas east of the Greens including the Northeast Kingdom, where we could see ice amounts of a trace to 0.15 inches. As the forecast favors precipitation in the form of ice Saturday night becoming rain Sunday, snow amounts remain relatively minimal with a trace to a half an inch for most, perhaps a few inches possible at the higher elevations of the mountains though. Temperatures in the mid 30s and 40s Sunday afternoon will be a main limiting factor in the accumulation of any impressive snow amounts. Winds are also expected to increase on Sunday out of the west, gusting as high as 15 to 30 knots, potentially high on the mountains, in the afternoon due to a low level jet aloft and tightening gradient behind the low pressure. && .LONG TERM /SUNDAY NIGHT THROUGH THURSDAY/... As of 1253 AM EST Friday...Behind the departing system on Sunday, rain or snow showers depending on time of day and elevation will occur at various intervals while strong cold advection in place with several shortwaves embedded with the upper trough swinging on the backside. The last will shift east around next Thursday. Surface high pressure will then lead to a relatively quiet day. Towards next Friday, a system with meager moisture will try crossing east, but it appears any larger scale system will wait until next Saturday. Temperatures will remain cool with little change over what we`ve been observing over the last several days. However, it looks heading into the next weekend, conditions will favor a trend to warm temperatures. && .AVIATION /06Z FRIDAY THROUGH TUESDAY/... Through 06Z Saturday...Outside some 1/2SM FZFG at KRUT, most locations are MVFR or VFR. There`s a small chance some fog may develop in partial clearing in the St. Lawrence Valley, and have noted VCFG for KMSS. Additionally, ceilings should fall some at KSLK between about 09z and 12z, but confidence is only moderate, and so a TEMPO at this time to indicate 700 ft ceilings with slight visibility reductions in case partial clearing reaches that area too. Otherwise, conditions will not change much until about 10z-14z as northwest to west winds begin picking up more speed to 5 to 8 knots. Ceilings will gradually improve to 4000-6000 ft agl, but then those trends begin reversing around 19-21z. Most terminals will fall back towards 1200-2500 ft agl ceilings. About that same time, a trough will produce scattered showers. Given limited coverage, the forecast opts for PROB30s at several locations for snow showers with reduced visibility to 3-5SM. The trough will exit after 00z, with northwest winds becoming 5 knots or less. Outlook... Saturday: VFR. Chance RA, Chance FZRA, Slight chance SN. Saturday Night: Mainly IFR, with local MVFR possible. Definite RA, Definite FZRA, Chance SN. Sunday: Mainly MVFR, with local IFR possible. Definite RA, Likely SN, Chance FZRA. Sunday Night: Mainly VFR, with areas MVFR possible. Chance SN. Monday: Mainly MVFR, with areas VFR possible. Chance SN. Monday Night: Mainly MVFR, with areas VFR possible. Slight chance SN. Tuesday: Mainly MVFR, with areas VFR possible. Slight chance SN. && .BTV WATCHES/WARNINGS/ADVISORIES... VT...None. NY...None. && $$ SYNOPSIS...Storm NEAR TERM...Storm SHORT TERM...Storm LONG TERM...Haynes AVIATION...Haynes