During the late evening hours of March 12th, a rapidly developing area of low pressure was off the mid-Atlantic coast. Light snow began to overspread the region in association with this system and began to increase in intensity towards daybreak on March 13th. Much of the snow was located from the Hudson Valley on eastward, with the steadiest and heaviest snowfall over the Taconics. During the day on the 13th, this low pressure became quite strong as it lifted northeast tracked well east of Cape Cod. Despite the storm taking a rather far easterly track, portions of eastern New York saw light snowfall continuing through the day, thanks to a large upper level low that tracked across the Great Lakes and along the New York/Pennsylvania border region.
Areas of snowfall continued into the evening hours of the 13th and became locally moderate to heavy across parts of the Capital Region. By the early morning on March 14th, the steady accumulating snowfall became more tied to upslope and lake-enhanced areas as the large upper level low slowly slid eastward into New England through the day.
Two-day snowfall totals were highly variable, with 8 to 12 inches in portions of the Capital District, northern Taconics, eastern Catskills, Schoharie Valley, and southern Adirondacks. Meanwhile, the Lake George Saratoga Region and Mid-Hudson Valley saw only a few inches.
This was the third heavy snowfall event in the first half of March 2018.  Albany recorded around a foot of snow in each of the events, bringing their March total to 36.0 through the 15th, and making 2018 the third-snowiest March on record.

Winter Storm in NORTHERN HERKIMER, NEW YORK
From 12-MAR-18 23:00:00 to 15-MAR-18 07:00:00 (EST-5)
Reported by: Trained Spotter

Winter Storm in HAMILTON, NEW YORK
From 12-MAR-18 23:00:00 to 15-MAR-18 05:00:00 (EST-5)
Reported by: Trained Spotter

Winter Storm in SOUTHERN HERKIMER, NEW YORK
From 12-MAR-18 21:00:00 to 15-MAR-18 05:00:00 (EST-5)
Reported by: Trained Spotter

Winter Storm in WESTERN SCHENECTADY, NEW YORK
From 12-MAR-18 21:00:00 to 15-MAR-18 05:00:00 (EST-5)
Reported by: Trained Spotter

Winter Storm in WESTERN ALBANY, NEW YORK
From 12-MAR-18 21:00:00 to 15-MAR-18 05:00:00 (EST-5)
Reported by: Trained Spotter

Winter Storm in WESTERN RENSSELAER, NEW YORK
From 12-MAR-18 23:00:00 to 14-MAR-18 00:00:00 (EST-5)
Reported by: Trained Spotter

Winter Weather in SOUTHERN FULTON, NEW YORK
From 12-MAR-18 21:00:00 to 15-MAR-18 05:00:00 (EST-5)
Reported by: Trained Spotter

Winter Weather in MONTGOMERY, NEW YORK
From 12-MAR-18 21:00:00 to 15-MAR-18 05:00:00 (EST-5)
Reported by: Trained Spotter

Winter Weather in NORTHERN SARATOGA, NEW YORK
From 12-MAR-18 23:00:00 to 14-MAR-18 00:00:00 (EST-5)
Reported by: Trained Spotter

Winter Weather in NORTHERN WARREN, NEW YORK
From 12-MAR-18 23:00:00 to 15-MAR-18 05:00:00 (EST-5)
Reported by: Trained Spotter

Winter Weather in NORTHERN WASHINGTON, NEW YORK
From 13-MAR-18 01:00:00 to 15-MAR-18 05:00:00 (EST-5)
Reported by: Trained Spotter

Winter Weather in SCHOHARIE, NEW YORK
From 12-MAR-18 21:00:00 to 15-MAR-18 05:00:00 (EST-5)
Reported by: Trained Spotter

Winter Weather in EASTERN SCHENECTADY, NEW YORK
From 12-MAR-18 23:00:00 to 14-MAR-18 00:00:00 (EST-5)
Reported by: Trained Spotter

Winter Weather in SOUTHERN SARATOGA, NEW YORK
From 12-MAR-18 23:00:00 to 14-MAR-18 00:00:00 (EST-5)
Reported by: Trained Spotter

Winter Weather in EASTERN ALBANY, NEW YORK
From 12-MAR-18 23:00:00 to 14-MAR-18 00:00:00 (EST-5)
Reported by: Trained Spotter

Winter Weather in EASTERN RENSSELAER, NEW YORK
From 12-MAR-18 23:00:00 to 14-MAR-18 00:00:00 (EST-5)
Reported by: Trained Spotter

Winter Weather in WESTERN GREENE, NEW YORK
From 12-MAR-18 21:00:00 to 15-MAR-18 05:00:00 (EST-5)
Reported by: Trained Spotter

Winter Weather in EASTERN GREENE, NEW YORK
From 12-MAR-18 23:00:00 to 14-MAR-18 00:00:00 (EST-5)
Reported by: Trained Spotter

Winter Weather in WESTERN COLUMBIA, NEW YORK
From 12-MAR-18 23:00:00 to 14-MAR-18 00:00:00 (EST-5)
Reported by: Trained Spotter

Winter Weather in EASTERN COLUMBIA, NEW YORK
From 12-MAR-18 23:00:00 to 14-MAR-18 00:00:00 (EST-5)
Reported by: Trained Spotter

Winter Weather in WESTERN ULSTER, NEW YORK
From 12-MAR-18 21:00:00 to 15-MAR-18 05:00:00 (EST-5)
Reported by: Trained Spotter

Winter Weather in EASTERN DUTCHESS, NEW YORK
From 12-MAR-18 21:00:00 to 13-MAR-18 19:00:00 (EST-5)
Reported by: Trained Spotter

Winter Weather in NORTHERN FULTON, NEW YORK
From 12-MAR-18 23:00:00 to 15-MAR-18 05:00:00 (EST-5)
Reported by: Trained Spotter

Winter Weather in SOUTHERN WASHINGTON, NEW YORK
From 13-MAR-18 01:00:00 to 15-MAR-18 05:00:00 (EST-5)
Reported by: Trained Spotter

Winter Weather in SOUTHEAST WARREN, NEW YORK
From 12-MAR-18 23:00:00 to 14-MAR-18 00:00:00 (EST-5)
Reported by: Trained Spotter