A stationary boundary was draped across the Adirondacks of New York into portions of central and northern New England from December 20th through 22nd with several disturbances delivering precipitation.  An impressive battle between mild to warm moist air, south of the boundary with temperatures in the 50s, overriding a very cold, dense shallow air mass with temperatures in the teens and 20s in New York but single digits just north across the border into Canada.
First round of wintry precipitation fell across northern New York, especially along the Canadian border during Friday afternoon (December 20th). Most of the precipitation fell as freezing rain, approximately 1/4 to 1/3 of ice accumulation, along with some sleet. The second round began during the late morning and early afternoon hours of December 21st and peaked during the evening and overnight hours. An additional 1/2 to 1 inch of ice accumulation as well as 1 to 2 inches of sleet occurred in portions of northern New York.
The greatest impact was along the Canadian border, especially the St. Lawrence River Valley with widespread tree and utility line damage as well as numerous vehicle accidents. Tens of dozens of customers were without power from hours to days across the region. Similar areas as the Ice Storm of January 1998, but not the severity as precipitation and ice accumulation was half of the 1998 storm.
Ice jams also developed during this time period as runoff from melting snow and rainfall swelled area rivers. River rises were enough to break up and move ice cover, resulting in scattered ice jams.

Ice Storm in SOUTHERN FRANKLIN, NEW YORK
From 21-DEC-13 15:00:00 to 22-DEC-13 08:00:00 (EST-5)
Property damage: 50.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Freezing rain accumulated between 0.5 and 0.75 inch across southern Franklin county causing numerous vehicle accidents, tree and utility line damage.

Flash Flood in ESSEX, NEW YORK
From 22-DEC-13 04:50:00 to 22-DEC-13 16:30:00 (EST-5)
Location: JAY
Flood cause: Ice Jam
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Emergency Manager

An ice jam moved down the East Branch Ausable River the morning of December 22. Reports were first received as the jam moved through the Jersey section of Ausable Forks NY. The river gage on the East Branch Ausable at Ausable Forks NY crested at 9.61 feet at 05:15 AM EST, flood stage is 7 feet. The jam eventually moved out of the East Branch into the Ausable River and came to rest between Ausable Forks and Clintonville on the Ausable River. Low lying roads, parking lots, and park land were flooded.

Ice Storm in EASTERN CLINTON, NEW YORK
From 20-DEC-13 12:00:00 to 22-DEC-13 10:00:00 (EST-5)
Property damage: 500.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Freezing rain accumulated around 1 inch, along with more than an inch of sleet across Clinton county causing numerous vehicle accidents, tree and utility line damage.

Ice Storm in EASTERN ESSEX, NEW YORK
From 20-DEC-13 16:00:00 to 22-DEC-13 10:00:00 (EST-5)
Property damage: 100.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Freezing rain accumulated between 1/2 to 3/4 inch, along with some minor accumulations of sleet across eastern Essex county causing numerous vehicle accidents, tree and utility line damage.

Ice Storm in NORTHERN ST. LAWRENCE, NEW YORK
From 20-DEC-13 11:00:00 to 22-DEC-13 08:00:00 (EST-5)
Property damage: 1.00M
Crop damage: 0.00K
Reported by: Emergency Manager

Freezing rain accumulated over an inch, along with more than an inch of sleet across northern St. Lawrence county causing numerous vehicle accidents, tree and utility line damage.

Ice Storm in NORTHERN FRANKLIN, NEW YORK
From 20-DEC-13 12:00:00 to 22-DEC-13 08:00:00 (EST-5)
Property damage: 750.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Freezing rain accumulated over an inch, along with more than an inch of sleet across northern Franklin county causing numerous vehicle accidents, tree and utility line damage.

Ice Storm in SOUTHEASTERN ST. LAWRENCE, NEW YORK
From 21-DEC-13 14:00:00 to 22-DEC-13 07:00:00 (EST-5)
Property damage: 100.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Freezing rain accumulated between 0.5 and 1 inch across southeast St. Lawrence county causing numerous vehicle accidents, tree and utility line damage.

Ice Storm in SOUTHWESTERN ST. LAWRENCE, NEW YORK
From 20-DEC-13 11:00:00 to 22-DEC-13 06:00:00 (EST-5)
Property damage: 750.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Freezing rain accumulated between 1 and 1.5 inches across southwest St. Lawrence county causing numerous vehicle accidents, tree and utility line damage.

Ice Storm in WESTERN CLINTON, NEW YORK
From 20-DEC-13 13:00:00 to 22-DEC-13 09:00:00 (EST-5)
Property damage: 250.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Freezing rain accumulated 1-1.25 inches, along with more than an inch of sleet across Clinton county causing numerous vehicle accidents, tree and utility line damage.