Overview
A multi-day lake-effect and upslope snow event began across eastern New York and western New England during the afternoon and evening hours on January 1, 2025 and continued into the evening hours on January 5, 2025 before ending. Low pressure tracked northward across the region on January 1 bringing a widespread rainfall, which gradually mixed with and changed over to snow during the afternoon and evening hours as colder air filtered back into the region. This low then tracked into Quebec and remained nearly stationary into January 3, 2025. Persistent west to west-northwesterly flow and a multi-lake connection during this time resulted in an oscillating band of heavy lake effect snow mostly impacting the Adirondacks and Mohawk Valley. On occasion, the band extended farther eastward bringing some light to moderate snowfall to portions of the Hudson Valley, especially from Albany and points north, and into western New England. There were instances the band even extended as far east as eastern New England!
An upper level disturbance tracked through the region during the evening hours on January 3, 2025 weakening and disrupting the lake effect response into the early morning hours on January 4 as flow became more northwesterly. West to west-northwesterly flow and a multi-lake connection resumed by the afternoon hours on January 4 as another period of heavy lake-effect snow took shape across the Adirondacks and Mohawk Valley which continued into January 5. A north to northwesterly wind shift and the arrival of surface high pressure and drier air ended the lake-effect event by the evening hours on January 5.
Snowfall totals from 1 to locally 5 feet fell across the Adirondacks and Mohawk Valley during this 5-day event with the highest totals occurring across central portions of Herkimer County, just north of the New York State Thruway.
Outside of the lake-effect snow, persistent upslope flow brought a general 5 to 10 inches of snow across the Rensselaer Plateau, northern Berkshires and into southern Vermont with some locally higher amounts within the peaks of the southern Greens.
Snow
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| Storm Total Snowfall: January 1-5, 2025 | New York State Storm Total Snowfall: January 1-5, 2025 |
Public Information Statement National Weather Service Albany NY 1132 AM EST Mon Jan 6 2025 ...5 Day Snowfall Total Reports as of 11 AM January 6th... Location Amount Time/Date Provider ...Connecticut... ...Litchfield County... Norfolk 2.7 in 0800 AM 01/06 COOP Warren 2.4 WNW 1.0 in 0700 AM 01/06 COCORAHS Canaan 4.2 ESE 0.5 in 0700 AM 01/06 COCORAHS New Hartford Center 3.2 SW T in 0700 AM 01/06 COCORAHS Bakersville T in 0700 AM 01/06 COOP ...Massachusetts... ...Berkshire County... Cheshire 0.5 NNW 5.7 in 0700 AM 01/06 COCORAHS Cheshire 2.6 N 4.9 in 0700 AM 01/06 COCORAHS Great Barrington 0.4 N 1.6 in 1159 PM 01/05 COCORAHS ...New York... ...Albany County... Latham 1.8 NW 2.3 in 0700 AM 01/06 COCORAHS Albany 0.7 SW 0.7 in 0700 AM 01/06 COCORAHS NWS Albany 0.6 in 0700 AM 01/06 COCORAHS Rensselaerville 2.1 NNW 0.5 in 0700 AM 01/06 COCORAHS Altamont 0.4 SE 0.4 in 0700 AM 01/06 COCORAHS Glenmont 2.5 SW T in 0700 AM 01/06 COCORAHS ...Columbia County... Germantown 0.6 E T in 0700 AM 01/06 COCORAHS Chatham 0.7 SW T in 0700 AM 01/06 COCORAHS Valatie 2.9 N T in 0700 AM 01/06 COCORAHS Ancramdale 0.2 N T in 0700 AM 01/06 COCORAHS ...Dutchess County... Pleasant Valley 1.7 S 0.2 in 1200 AM 01/06 COCORAHS Millbrook 3.2 SE T in 0700 AM 01/06 COCORAHS Red Hook 1.2 NNE T in 0700 AM 01/06 COCORAHS ...Fulton County... Gloversville 7nw 27.3 in 0700 AM 01/06 COOP Dolgeville 6.4 E 16.0 in 0845 AM 01/06 COCORAHS 2 NW Hagaman 1.0 in 0358 PM 01/05 ...Greene County... Elka Park 3.8 ESE 1.0 in 0700 AM 01/06 COCORAHS Greenville 0.7 E 0.2 in 0500 AM 01/06 COCORAHS Freehold 3.4 E T in 0530 AM 01/06 COCORAHS Athens 0.3 WNW T in 0700 AM 01/06 COCORAHS Lexington 1.5 N T in 0700 AM 01/06 COCORAHS ...Hamilton County... Hoffmeister 2.4 WNW 27.5 in 0800 AM 01/06 COCORAHS Lake Pleasant 2.3 WSW 11.1 in 0655 AM 01/06 COCORAHS Long Lake 1.2 N 8.7 in 0700 AM 01/06 COCORAHS 4 NNW Wells 5.8 in 0459 PM 01/05 Indian Lake 4.8 in 0740 AM 01/06 COOP ...Herkimer County... 3 NW Dolgeville 60.0 in 0740 AM 01/06 Broadcast Media 4 W Middleville 59.2 in 0700 AM 01/06 Schuyler 3.3 NE 59.0 in 0700 AM 01/06 COCORAHS Salisbury Center 1.8 NW 39.5 in 0500 AM 01/06 COCORAHS Ohio 28.0 in 0740 AM 01/06 Broadcast Media Little Falls 24.0 in 0740 AM 01/06 Broadcast Media ...Montgomery County... Amsterdam 1.0 NNW 10.2 in 0714 AM 01/06 COCORAHS Fonda 5.2 W 7.5 in 0900 AM 01/06 COCORAHS Fort Plain 0.2 SE 5.3 in 0700 AM 01/06 COCORAHS Hessville 1.8 WSW 1.7 in 0800 AM 01/06 COCORAHS ...Rensselaer County... Buskirk 0.7 in 0830 AM 01/06 COOP Averill Park 0.9 WNW 0.6 in 0800 AM 01/06 COCORAHS Troy 2.1 NNE 0.6 in 0800 AM 01/06 COCORAHS Troy 2.6 N 0.5 in 0700 AM 01/06 COCORAHS ...Saratoga County... Ballston Spa 2.9 ESE 5.0 in 0730 AM 01/06 COCORAHS 4 WNW Rock City Falls 2.5 in 0845 AM 01/06 COCORAHS Milton 5.9 NNW 2.0 in 0700 AM 01/06 COCORAHS Sacandaga Lake 2.0 in 0800 AM 01/06 COOP 5 W Porter Corners 1.5 in 1007 PM 01/05 Clifton Park 2.7 S 0.8 in 0630 AM 01/06 COCORAHS ...Schenectady County... Scotia 1.1 NW 2.5 in 0600 AM 01/06 COCORAHS Delanson 2ne 2.0 in 0700 AM 01/06 COOP Niskayuna 2.9 SSE 1.7 in 0700 AM 01/06 COCORAHS Niskayuna 2.0 N 1.7 in 0700 AM 01/06 COCORAHS ...Schoharie County... Sharon Springs 0.5 S 4.9 in 0700 AM 01/06 COCORAHS Lansing Manor 0.7 in 0830 AM 01/06 COOP ...Ulster County... Esopus 0.8 NNE T in 0700 AM 01/06 COCORAHS Hurley 2.2 S T in 0700 AM 01/06 COCORAHS Highland 0.2 SW T in 0700 AM 01/06 COCORAHS West Hurley 0.1 S T in 0700 AM 01/06 COCORAHS Woodstock 0.8 ENE T in 0700 AM 01/06 COCORAHS Saugerties 4.7 NW T in 0830 AM 01/06 COCORAHS ...Warren County... 1 SW Warrensburg 1.0 in 0359 PM 01/05 1 WNW West Glens Falls 1.0 in 0458 PM 01/05 Lake George 1.0 N 1.0 in 0600 AM 01/06 COCORAHS West Glens Falls 1.1 NW 0.9 in 0800 AM 01/06 COCORAHS ...Washington County... 6 NE Argyle 2.5 in 0517 AM 01/06 Salem 2.3 SSE 2.4 in 0600 AM 01/06 COCORAHS 5 WSW Granville 1.5 in 0453 PM 01/05 ...Vermont... ...Bennington County... Peru 11.1 in 0700 AM 01/06 COOP Stamford 5.0 NNE 9.1 in 0400 PM 01/05 COCORAHS Landgrove 1.1 NNE 4.5 in 0750 AM 01/06 COCORAHS 5 S Woodford State Park 4.3 in 0400 PM 01/05 5 WNW Arlington 2.0 in 0436 AM 01/06 ...Windham County... Wilmington 0.6 WNW 4.0 in 0535 AM 01/06 COCORAHS Marlboro 2.0 NNE 1.6 in 0800 AM 01/06 COCORAHS East Dover 1.8 N 1.0 in 0650 AM 01/06 COCORAHS Rockingham 1.1 NNE 1.0 in 0700 AM 01/06 COCORAHS 5.6 W West Brattleboro 0.6 in 0800 AM 01/06 COOP Guilford 7.0 SW 0.5 in 0730 AM 01/06 COCORAHS East Dummerston 0.5 NE 0.3 in 0730 AM 01/06 COCORAHS Putney 0.7 NE 0.3 in 0800 AM 01/06 COCORAHS Brattleboro 0.7 S 0.2 in 0700 AM 01/06 COCORAHS Westminster 5.5 NW T in 0700 AM 01/06 COCORAHS
Radar
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| Regional Radar Loop valid 12:00 am January 1 to 12:00 am January 2, 2025 | Regional Radar Loop valid 12:00 am January 2 to 12:00 am January 3, 2025 | Regional Radar Loop valid 12:00 am January 3 to 12:00 am January 4, 2025 |
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| Regional Radar Loop valid 12:00 am January 4 to 12:00 am January 5, 2025 | Regional Radar Loop valid 12:00 am January 5 to 12:00 am January 6, 2025 | Regional Radar Loop valid 12:00 am January 1 to 12:00 am January 6, 2025 (1-hour increments) |
Environment
250 hPa Analysis
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| Valid 00z January 1, 2025 | Valid 12z January 1, 2025 | Valid 00z January 2, 2025 |
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| Valid 12z January 2, 2025 | Valid 00z January 3, 2025 | Valid 12z January 3, 2025 |
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| Valid 00z January 4, 2025 | Valid 12z January 4, 2025 | Valid 00z January 5, 2025 |
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| Valid 12z January 5, 2025 | Valid 00z January 6, 2025 | Valid 12z January 6, 2025 |
500 hPa Analysis
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| Valid 00z January 1, 2025 | Valid 12z January 1, 2025 | Valid 00z January 2, 2025 |
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| Valid 12z January 2, 2025 | Valid 00z January 3, 2025 | Valid 12z January 3, 2025 |
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| Valid 00z January 4, 2025 | Valid 12z January 4, 2025 | Valid 00z January 5, 2025 |
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| Valid 12z January 5, 2025 | Valid 00z January 6, 2025 | Valid 12z January 6, 2025 |
850 hPa Analysis
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| Valid 00z January 1, 2025 | Valid 12z January 1, 2025 | Valid 00z January 2, 2025 |
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| Valid 12z January 2, 2025 | Valid 00z January 3, 2025 | Valid 12z January 3, 2025 |
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| Valid 00z January 4, 2025 | Valid 12z January 4, 2025 | Valid 00z January 5, 2025 |
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| Valid 12z January 5, 2025 | Valid 00z January 6, 2025 | Valid 12z January 6, 2025 |
Surface Analysis
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| Valid 00z January 1, 2025 | Valid 12z January 1, 2025 | Valid 00z January 2, 2025 |
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| Valid 12z January 2, 2025 | Valid 00z January 3, 2025 | Valid 12z January 3, 2025 |
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| Valid 00z January 4, 2025 | Valid 12z January 4, 2025 | Valid 00z January 5, 2025 |
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| Valid 12z January 5, 2025 | Valid 00z January 6, 2025 | Valid 12z January 6, 2025 |
Upper Air Soundings
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| KBUF Sounding Valid 12z January 2, 2025 | KALY Sounding Valid 00z January 3, 2025 | KBUF Sounding Valid 00z January 3, 2025 |
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| KALY Sounding Valid 12z January 3, 2025 | KBUF Sounding Valid 12z January 3, 2025 | KALY Sounding Valid 00z January 4, 2025 |
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| KBUF Sounding Valid 00z January 4, 2025 | KALY Sounding Valid 12z January 4, 2025 | KBUF Sounding Valid 12z January 4, 2025 |
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| KALY Sounding Valid 00z January 5, 2025 | KBUF Sounding Valid 00z January 5, 2025 | KALY Sounding Valid 12z January 5, 2025 |
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| KBUF Sounding Valid 12z January 5, 2025 | KALY Sounding Valid 00z January 6, 2025 | KBUF Sounding Valid 00z January 6, 2025 |
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