An area of low pressure moved across the Ohio Valley towards western New York on Saturday, December 14th.  At the same time, another area of low pressure began to develop over the mid-Atlantic coast late in the day and rapidly strengthened overnight as it moved up the eastern seaboard.  This storm was located off the coast of New England during the day on Sunday, December 15th.
As a result, snow slowly spread from southwest to northeast during the day on December 14th.  With a cold and dry airmass in place, the snow was initially light in intensity and little accumulation occurred during the day.
However, as the secondary low began to rapidly develop, a steadier and heavier snowfall moved across the region during the evening hours and into the overnight.  Snow fell at rates in excess of one inch per hour over much of the region and snow rates locally were as high as up to three inches per hour at times.  During the overnight hours, sleet and freezing rain mixed in with the snow across portions of the mid-Hudson Valley and Taconics, but the precipitation remained all in the form of snow north and west of there.
The bulk of the accumulating snow was finished by the late overnight hours, but light snow showers and flurries continued into the mid-morning hours, especially across the Adirondacks and Capital Region.  By the end of the storm, many places around the eastern Catskills, Capital Region and Lake George Saratoga Region received around a foot of snowfall. Lighter snowfall of 5 to 8 inches occured in the mid-Hudson Valley due to the mixing with sleet and freezing rain. Lighter snowfall amounts of 6 to 9 inches occurred in the western Adirondacks and western Mohawk Valley, as the heaviest snow remained east of these locations.

Winter Storm in WESTERN DUTCHESS, NEW YORK
From 14-DEC-13 08:00:00 to 15-DEC-13 06:00:00 (EST-5)
Reported by: Trained Spotter

Winter Storm in EASTERN COLUMBIA, NEW YORK
From 14-DEC-13 10:00:00 to 15-DEC-13 09:00:00 (EST-5)
Reported by: Trained Spotter

Heavy Snow in HAMILTON, NEW YORK
From 14-DEC-13 14:00:00 to 15-DEC-13 10:50:00 (EST-5)
Reported by: Trained Spotter

Winter Weather in EASTERN DUTCHESS, NEW YORK
From 14-DEC-13 08:00:00 to 15-DEC-13 06:00:00 (EST-5)
Reported by: Trained Spotter

Winter Storm in EASTERN RENSSELAER, NEW YORK
From 14-DEC-13 11:00:00 to 15-DEC-13 09:00:00 (EST-5)
Reported by: Trained Spotter

Heavy Snow in SOUTHERN WASHINGTON, NEW YORK
From 14-DEC-13 13:00:00 to 15-DEC-13 09:00:00 (EST-5)
Reported by: Trained Spotter

Heavy Snow in NORTHERN WASHINGTON, NEW YORK
From 14-DEC-13 16:00:00 to 15-DEC-13 10:50:00 (EST-5)
Reported by: Trained Spotter

Heavy Snow in WESTERN ALBANY, NEW YORK
From 14-DEC-13 10:00:00 to 15-DEC-13 09:00:00 (EST-5)
Reported by: Trained Spotter

Winter Storm in WESTERN COLUMBIA, NEW YORK
From 14-DEC-13 10:00:00 to 15-DEC-13 09:00:00 (EST-5)
Reported by: Trained Spotter

Heavy Snow in NORTHERN SARATOGA, NEW YORK
From 14-DEC-13 12:00:00 to 15-DEC-13 09:00:00 (EST-5)
Reported by: Trained Spotter

Heavy Snow in SOUTHEAST WARREN, NEW YORK
From 14-DEC-13 14:00:00 to 15-DEC-13 09:00:00 (EST-5)
Reported by: Trained Spotter

Heavy Snow in NORTHERN WARREN, NEW YORK
From 14-DEC-13 15:00:00 to 15-DEC-13 10:50:00 (EST-5)
Reported by: Trained Spotter

Heavy Snow in EASTERN ALBANY, NEW YORK
From 14-DEC-13 11:00:00 to 15-DEC-13 09:00:00 (EST-5)
Reported by: Trained Spotter

Heavy Snow in SCHOHARIE, NEW YORK
From 14-DEC-13 10:00:00 to 15-DEC-13 09:00:00 (EST-5)
Reported by: Trained Spotter

Winter Weather in SOUTHERN HERKIMER, NEW YORK
From 14-DEC-13 11:00:00 to 15-DEC-13 10:50:00 (EST-5)
Reported by: Trained Spotter

Heavy Snow in WESTERN ULSTER, NEW YORK
From 14-DEC-13 08:00:00 to 15-DEC-13 09:00:00 (EST-5)
Reported by: Trained Spotter

Winter Weather in NORTHERN HERKIMER, NEW YORK
From 14-DEC-13 14:00:00 to 15-DEC-13 10:50:00 (EST-5)
Reported by: Trained Spotter

Winter Storm in EASTERN ULSTER, NEW YORK
From 14-DEC-13 08:00:00 to 15-DEC-13 09:00:00 (EST-5)
Reported by: Trained Spotter

Winter Storm in EASTERN GREENE, NEW YORK
From 14-DEC-13 10:00:00 to 15-DEC-13 09:00:00 (EST-5)
Reported by: Trained Spotter

Heavy Snow in WESTERN GREENE, NEW YORK
From 14-DEC-13 09:00:00 to 15-DEC-13 09:00:00 (EST-5)
Reported by: Trained Spotter

Heavy Snow in WESTERN SCHENECTADY, NEW YORK
From 14-DEC-13 11:00:00 to 15-DEC-13 09:00:00 (EST-5)
Reported by: Trained Spotter

Heavy Snow in MONTGOMERY, NEW YORK
From 14-DEC-13 11:00:00 to 15-DEC-13 09:00:00 (EST-5)
Reported by: Trained Spotter

Heavy Snow in SOUTHERN SARATOGA, NEW YORK
From 14-DEC-13 11:00:00 to 15-DEC-13 09:00:00 (EST-5)
Reported by: Trained Spotter

Heavy Snow in EASTERN SCHENECTADY, NEW YORK
From 14-DEC-13 11:00:00 to 15-DEC-13 09:00:00 (EST-5)
Reported by: Trained Spotter

Winter Storm in WESTERN RENSSELAER, NEW YORK
From 14-DEC-13 11:00:00 to 15-DEC-13 09:00:00 (EST-5)
Reported by: Trained Spotter

Heavy Snow in SOUTHERN FULTON, NEW YORK
From 14-DEC-13 11:00:00 to 15-DEC-13 09:00:00 (EST-5)
Reported by: Trained Spotter

Heavy Snow in NORTHERN FULTON, NEW YORK
From 14-DEC-13 12:00:00 to 15-DEC-13 09:00:00 (EST-5)
Reported by: Trained Spotter