A strong frontal boundary crossed the region during the early morning hours on Sunday, November 20th.  Precipitation initially begin as rain or a mix of rain and snow, but quickly transitioned over to just snow as colder air quickly worked its way into the region.
Although precipitation only lasted a few hours across valley areas, the snowfall continued through the entire day on Sunday November 20th and into the day on Monday November 21st across the higher elevations, as the persistent westerly flow caused upslope flow into the higher terrain of the Taconics and eastern Catskills.  In addition, the very cold air moving into aloft behind the storm allowed for lake-effect snow to occur across the western Adirondacks, western Mohawk Valley and Schoharie County. While valley areas only saw a few inches of snowfall, high terrain areas saw upwards of 10 inches, with some localized totals near two feet within the highest terrain of the northern Taconics in eastern Rensselaer County.
This heavy snowfall, accompanied by gusty winds, caused some power outages across the higher terrain.  Media reported statewide outages totaled at 52,000 customers by Monday afternoon, with many of these located across the northern and central Taconics.

Winter Weather in SOUTHERN WASHINGTON, NEW YORK
From 20-NOV-16 04:00:00 to 21-NOV-16 18:00:00 (EST-5)
Reported by: Trained Spotter

Lake-Effect Snow in NORTHERN HERKIMER, NEW YORK
From 20-NOV-16 01:00:00 to 21-NOV-16 18:00:00 (EST-5)
Reported by: Trained Spotter

Lake-Effect Snow in HAMILTON, NEW YORK
From 20-NOV-16 02:00:00 to 21-NOV-16 18:00:00 (EST-5)
Reported by: Trained Spotter

Lake-Effect Snow in SOUTHERN HERKIMER, NEW YORK
From 20-NOV-16 01:00:00 to 21-NOV-16 18:00:00 (EST-5)
Reported by: Trained Spotter

Lake-Effect Snow in SCHOHARIE, NEW YORK
From 20-NOV-16 01:00:00 to 21-NOV-16 18:00:00 (EST-5)
Reported by: Trained Spotter

Lake-Effect Snow in NORTHERN FULTON, NEW YORK
From 20-NOV-16 02:00:00 to 21-NOV-16 18:00:00 (EST-5)
Reported by: Trained Spotter

Heavy Snow in EASTERN RENSSELAER, NEW YORK
From 20-NOV-16 03:00:00 to 21-NOV-16 18:00:00 (EST-5)
Reported by: Trained Spotter

Heavy Snow in EASTERN COLUMBIA, NEW YORK
From 20-NOV-16 03:00:00 to 21-NOV-16 18:00:00 (EST-5)
Reported by: Trained Spotter

Heavy Snow in WESTERN GREENE, NEW YORK
From 20-NOV-16 01:00:00 to 21-NOV-16 18:00:00 (EST-5)
Reported by: Trained Spotter

Winter Weather in SOUTHERN FULTON, NEW YORK
From 20-NOV-16 02:00:00 to 21-NOV-16 18:00:00 (EST-5)
Reported by: Trained Spotter

Winter Weather in NORTHERN WASHINGTON, NEW YORK
From 20-NOV-16 04:00:00 to 21-NOV-16 18:00:00 (EST-5)
Reported by: Trained Spotter

Winter Weather in WESTERN SCHENECTADY, NEW YORK
From 20-NOV-16 02:00:00 to 21-NOV-16 18:00:00 (EST-5)
Reported by: Trained Spotter

Winter Weather in WESTERN ALBANY, NEW YORK
From 20-NOV-16 02:00:00 to 21-NOV-16 18:00:00 (EST-5)
Reported by: Trained Spotter

Winter Weather in WESTERN RENSSELAER, NEW YORK
From 20-NOV-16 03:00:00 to 21-NOV-16 18:00:00 (EST-5)
Reported by: Trained Spotter

Winter Weather in WESTERN ULSTER, NEW YORK
From 20-NOV-16 01:00:00 to 21-NOV-16 18:00:00 (EST-5)
Reported by: Trained Spotter

Winter Weather in EASTERN DUTCHESS, NEW YORK
From 20-NOV-16 02:00:00 to 21-NOV-16 18:00:00 (EST-5)
Reported by: Trained Spotter