A low pressure system developed along the trailing end of a cold front over the lower Mississippi Valley on Thursday, November 30th, before moving northeast and intensifying rapidly.  The low reached the eastern Great Lakes by Friday morning, and then moved across northern New York State by Friday evening.
A strong cold front trailing from this low swept across eastern New York late Friday afternoon into the evening hours, preceded and accompanied by several lines of severe thunderstorms.

Thunderstorm Wind in COLUMBIA, NEW YORK
From 01-DEC-06 18:27:00 to 01-DEC-06 18:27:00 (EST-5)
Location: GREENDALE
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Structural damage to a house was reported in Greendale due to thunderstorm winds. In addition, a carport was torn off, and trees and wires were also reported down.

Thunderstorm Wind in COLUMBIA, NEW YORK
From 01-DEC-06 18:38:00 to 01-DEC-06 18:38:00 (EST-5)
Location: COPAKE
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trees and wires were reported down in Copake due to thunderstorm winds.

Thunderstorm Wind in DUTCHESS, NEW YORK
From 01-DEC-06 19:00:00 to 01-DEC-06 19:00:00 (EST-5)
Location: SALT PT
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trees were reported down in Salt Point due to thunderstorm winds.

Thunderstorm Wind in SCHENECTADY, NEW YORK
From 01-DEC-06 17:25:00 to 01-DEC-06 17:25:00 (EST-5)
Location: DUANESBURG
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Trees were reported down due to thunderstorm winds in Duanesburg.

Thunderstorm Wind in SARATOGA, NEW YORK
From 01-DEC-06 17:35:00 to 01-DEC-06 17:35:00 (EST-5)
Location: SARATOGA SPGS CO ARP
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Wires were reported down due to thunderstorm winds in Milton.

Thunderstorm Wind in HERKIMER, NEW YORK
From 01-DEC-06 16:52:00 to 01-DEC-06 16:52:00 (EST-5)
Location: BEAVER RIVER
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A tree was reported down due to thunderstorm winds in Big Moose.

High Wind in WESTERN RENSSELAER, NEW YORK
From 01-DEC-06 16:30:00 to 01-DEC-06 16:30:00 (EST-5)
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Trees were reported down in Hensonville from strong gradient winds.

High Wind in EASTERN RENSSELAER, NEW YORK
From 01-DEC-06 19:00:00 to 01-DEC-06 19:00:00 (EST-5)
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Wires were reported down in Hoosick from strong gradient winds.  Also, numerous power outages were reported in eastern Rensselaer County from the strong winds.

High Wind in SOUTHERN WASHINGTON, NEW YORK
From 01-DEC-06 19:00:00 to 01-DEC-06 19:00:00 (EST-5)
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Wires were reported down in Buskirk from strong gradient winds. Also, numerous power outages were reported across southern Washington County.

Thunderstorm Wind in DUTCHESS, NEW YORK
From 01-DEC-06 18:26:00 to 01-DEC-06 18:30:00 (EST-5)
Location: RHINEBECK
Magnitude: 67.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

A NWS Storm Survey Team confirmed that straight line winds struck the region from Rhinebeck to the Sepasco Lake area between 18:26 EST and 18:30 EST on Friday, December 1st.
Damage occurred along a four mile long path, over an approximate width of 100 yards, extending from the village of Rhinebeck northeast to Sepasco Lake. The damage swath rougly paralleled Route 308. Damage was confined mainly to falling trees. There was essentially no damage from the wind alone to structures. However, some structures sustained damage from falling trees. Many of the downed trees were pine, although a fair number were hardwoods. Damage occurred in three main areas, in the Village of Rhinebeck, the Harter Lane area, and the Sepasco Lake area.
The estimated winds were at 75 to 80 mph.

Thunderstorm Wind in HERKIMER, NEW YORK
From 01-DEC-06 16:51:00 to 01-DEC-06 16:51:00 (EST-5)
Location: OHIO
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A tree was reported down due to thunderstorm winds in Ohio.

Thunderstorm Wind in SCHOHARIE, NEW YORK
From 01-DEC-06 17:00:00 to 01-DEC-06 17:00:00 (EST-5)
Location: SUMMIT
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Trees were reported down due to thunderstorm winds in Summit.

Thunderstorm Wind in ALBANY, NEW YORK
From 01-DEC-06 17:49:00 to 01-DEC-06 18:01:00 (EST-5)
Location: GLENMONT
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Several trees were reported down in Glenmont and Selkirk between 1749 EST and 1801 LST due to thunderstorm winds.

Thunderstorm Wind in GREENE, NEW YORK
From 01-DEC-06 18:01:00 to 01-DEC-06 18:01:00 (EST-5)
Location: WEST COXSACKIE
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Trees were reported down in Coxsackie due to thunderstorm winds.

Thunderstorm Wind in DUTCHESS, NEW YORK
From 01-DEC-06 19:15:00 to 01-DEC-06 19:15:00 (EST-5)
Location: POUGHKEEPSIE
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trees and wires were reported down in Lagrangeville due to thunderstorm winds.

Thunderstorm Wind in FULTON, NEW YORK
From 01-DEC-06 17:05:00 to 01-DEC-06 17:05:00 (EST-5)
Location: JOHNSTOWN
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Trees were reported down due to thunderstorm winds in Johnstown.

Thunderstorm Wind in MONTGOMERY, NEW YORK
From 01-DEC-06 17:09:00 to 01-DEC-06 17:09:00 (EST-5)
Location: GLEN
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Trees were reported down due to thunderstorm winds in Glen.

Thunderstorm Wind in HAMILTON, NEW YORK
From 01-DEC-06 17:13:00 to 01-DEC-06 17:13:00 (EST-5)
Location: PAGE HILL
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Trees were reported down due to thunderstorm winds in Speculator.

Thunderstorm Wind in ULSTER, NEW YORK
From 01-DEC-06 18:06:00 to 01-DEC-06 18:06:00 (EST-5)
Location: WHITEFIELD
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Trees were reported down in Accord due to thunderstorm winds.

Thunderstorm Wind in RENSSELAER, NEW YORK
From 01-DEC-06 18:20:00 to 01-DEC-06 18:20:00 (EST-5)
Location: PETERSBURG
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Trees were reported down in Petersburg due to thunderstorm winds.

High Wind in WESTERN ULSTER, NEW YORK
From 01-DEC-06 16:24:00 to 01-DEC-06 16:24:00 (EST-5)
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A tree was blown onto an apartment building, crashing through the roof and killing an individual inside in Wawarsing. This occurred from strong winds, well ahead of any thunderstorms.