A warm front crossed the region during the morning hours on Friday, June 12th, allowing a warm and humid air mass to move into eastern upstate New York.  As a strong cold front approached from the west, thunderstorms developed during the afternoon and evening hours.  Several rotating supercell thunderstorms developed, causing damaging winds and small hail to occur in some locations.  Despite the development of these rotating storms, no tornadoes were reported across the area.  Behind these supercell thunderstorms, several organized lines of thunderstorms moved across the region as well, bringing straight-line winds, which damaged trees and power lines. In addition to the winds and hail, these thunderstorms also produced a significant amount of lightning, and heavy rainfall which caused significant street flooding.  At one point, over 10,000 customers were without power across the Capital Region and around 6,500 people in the mid-Hudson Valley, due to a significant microburst that occurred in Gardiner.
The threat for thunderstorms ended by the late evening hours, as the cold front moved from west to east across the area.

Thunderstorm Wind in SCHOHARIE, NEW YORK
From 12-JUN-15 19:38:00 to 12-JUN-15 19:38:00 (EST-5)
Location: JEFFERSON
Magnitude: 50.00 EG
Reported by: 911 Call Center

Trees and wires were downed in Jefferson as a result of thunderstorm winds.

Thunderstorm Wind in MONTGOMERY, NEW YORK
From 12-JUN-15 18:15:00 to 12-JUN-15 18:15:00 (EST-5)
Location: RANDALL
Magnitude: 50.00 EG
Reported by: Trained Spotter

A tree was reported down on Route 5S near Argersinger Road in Randall due to thunderstorm winds.

Thunderstorm Wind in GREENE, NEW YORK
From 12-JUN-15 20:35:00 to 12-JUN-15 20:35:00 (EST-5)
Location: ATHENS
Magnitude: 50.00 EG
Reported by: 911 Call Center

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

Thunderstorm Wind in COLUMBIA, NEW YORK
From 12-JUN-15 20:37:00 to 12-JUN-15 20:37:00 (EST-5)
Location: COLUMBIAVILLE
Magnitude: 50.00 EG
Reported by: 911 Call Center

A tree and wires were reported down in Stockport due to thunderstorm winds.

Thunderstorm Wind in SCHENECTADY, NEW YORK
From 12-JUN-15 19:18:00 to 12-JUN-15 19:18:00 (EST-5)
Location: HAWTHORNE HILL
Magnitude: 50.00 EG
Reported by: Emergency Manager

Trees were reported down, including one on a house, on Ardmore Court in Niskayuna due to thunderstorm winds.

Thunderstorm Wind in RENSSELAER, NEW YORK
From 12-JUN-15 19:38:00 to 12-JUN-15 19:38:00 (EST-5)
Location: PLEASANTDALE
Magnitude: 50.00 EG
Reported by: 911 Call Center

Trees and wires were downed on 124th Street in Troy as a result of thunderstorm winds.

Thunderstorm Wind in RENSSELAER, NEW YORK
From 12-JUN-15 20:34:00 to 12-JUN-15 20:34:00 (EST-5)
Location: STEPHENTOWN CENTER
Magnitude: 50.00 EG
Reported by: 911 Call Center

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

Thunderstorm Wind in RENSSELAER, NEW YORK
From 12-JUN-15 19:59:00 to 12-JUN-15 19:59:00 (EST-5)
Location: BERLIN
Magnitude: 50.00 EG
Reported by: 911 Call Center

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

Thunderstorm Wind in SCHENECTADY, NEW YORK
From 12-JUN-15 19:06:00 to 12-JUN-15 19:06:00 (EST-5)
Location: DELANSON
Magnitude: 50.00 EG
Reported by: Trained Spotter

Multiple trees were reported down at the intersection of U.S. Route 20 and State Route 395 in the town of Duanesburg due to thunderstorm winds.

Thunderstorm Wind in SCHENECTADY, NEW YORK
From 12-JUN-15 19:16:00 to 12-JUN-15 19:16:00 (EST-5)
Location: SCHENECTADY
Magnitude: 50.00 EG
Reported by: Trained Spotter

A tree was reported down at the intersection of Union Street and Park Ave in Schenectady due to thunderstorm winds.

Thunderstorm Wind in SARATOGA, NEW YORK
From 12-JUN-15 19:33:00 to 12-JUN-15 19:33:00 (EST-5)
Location: WATERFORD
Magnitude: 50.00 EG
Reported by: Public

Multiple trees were uprooted in Waterford due to thunderstorm winds.

Thunderstorm Wind in ALBANY, NEW YORK
From 12-JUN-15 19:35:00 to 12-JUN-15 19:36:00 (EST-5)
Location: WEST ALBANY
Magnitude: 60.00 EG
Reported by: Trained Spotter

Multiple trees were reported down in Loudonville as a result of thunderstorm wind.  One large tree was downed at the corner of Knob Hill Road and Dorwood Drive, which also damaged a fence.  Power lines were downed and burning as a result of the downed tree as well.  Additional downed tree limbs were located near the intersection of Maxwell Road and Old Niskayuna Road and one car was crushed as a result of the downed tree limbs.  Pea sized hail also accompanied the strong winds.

Thunderstorm Wind in ULSTER, NEW YORK
From 12-JUN-15 16:08:00 to 12-JUN-15 16:08:00 (EST-5)
Location: IRELAND CORNERS
Magnitude: 70.00 EG
Reported by: Trained Spotter

Multiple trees were downed on Route 208 in Gardiner due to thunderstorm winds.

Thunderstorm Wind in ULSTER, NEW YORK
From 12-JUN-15 16:05:00 to 12-JUN-15 16:06:00 (EST-5)
Location: GANAHGOTE
Magnitude: 87.00 EG
Reported by: NWS Storm Survey

Numerous trees and power lines were downed to a thunderstorm microburst in the town of Garinder.  Many of the trees were snapped or uprooted and a few homes also sustained damage to siding from the wind. In addition, a person was trapped in a car due to downed trees.  At least eight utility poles were snapped due to wind and around 6,500 people were without power as a result of the thunderstorm.  Despite the damage, most of the people had power restored by the next morning.

Thunderstorm Wind in SCHOHARIE, NEW YORK
From 12-JUN-15 19:38:00 to 12-JUN-15 19:38:00 (EST-5)
Location: SUMMIT
Magnitude: 50.00 EG
Reported by: 911 Call Center

Trees and wires were downed in Summit as a result of thunderstorm winds.

Thunderstorm Wind in RENSSELAER, NEW YORK
From 12-JUN-15 19:43:00 to 12-JUN-15 19:43:00 (EST-5)
Location: CROPSEYVILLE
Magnitude: 50.00 EG
Reported by: 911 Call Center

Trees and wires were downed in Brunswick as a result of thunderstorm winds.

Thunderstorm Wind in ULSTER, NEW YORK
From 12-JUN-15 16:05:00 to 12-JUN-15 16:05:00 (EST-5)
Location: GANAHGOTE
Magnitude: 75.00 EG
Reported by: Trained Spotter

Multiple trees were downed on Route 44 in Gardiner due to thunderstorm winds.

Thunderstorm Wind in HERKIMER, NEW YORK
From 12-JUN-15 17:15:00 to 12-JUN-15 17:15:00 (EST-5)
Location: WEST WINFIELD
Magnitude: 50.00 EG
Reported by: 911 Call Center

Trees and wires were reported down in West Winfield as a result of thunderstorm winds.

Thunderstorm Wind in HERKIMER, NEW YORK
From 12-JUN-15 17:22:00 to 12-JUN-15 17:22:00 (EST-5)
Location: EAST FRANKFORT
Magnitude: 50.00 EG
Reported by: Law Enforcement

Trees and wires were reported down in Ilion as a result of thunderstorm winds.

Thunderstorm Wind in ALBANY, NEW YORK
From 12-JUN-15 19:35:00 to 12-JUN-15 19:35:00 (EST-5)
Location: BOGHT CORNERS
Magnitude: 50.00 EG
Reported by: Amateur Radio

Trees and wires were downed in Boght Corners due to thunderstorm winds.  Wires landed on a car and people were temporarily trapped within the vehicle.

Thunderstorm Wind in ALBANY, NEW YORK
From 12-JUN-15 19:36:00 to 12-JUN-15 19:36:00 (EST-5)
Location: COHOES
Magnitude: 50.00 EG
Reported by: Amateur Radio

Multiple trees and wires were downed in Cohoes as a result of thunderstorm winds.

Thunderstorm Wind in RENSSELAER, NEW YORK
From 12-JUN-15 19:54:00 to 12-JUN-15 19:54:00 (EST-5)
Location: GRAFTON
Magnitude: 50.00 EG
Reported by: 911 Call Center

Trees and wires were downed in Grafton as a result of thunderstorm winds.

Thunderstorm Wind in GREENE, NEW YORK
From 12-JUN-15 20:07:00 to 12-JUN-15 20:07:00 (EST-5)
Location: WINDHAM
Magnitude: 50.00 EG
Reported by: 911 Call Center

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

Thunderstorm Wind in SCHENECTADY, NEW YORK
From 12-JUN-15 17:50:00 to 12-JUN-15 17:50:00 (EST-5)
Location: ESPERANCE STATION
Magnitude: 50.00 EG
Reported by: 911 Call Center

Two trees were downed along Route 30 in Esperance due to thunderstorm winds.

Thunderstorm Wind in MONTGOMERY, NEW YORK
From 12-JUN-15 18:15:00 to 12-JUN-15 18:15:00 (EST-5)
Location: CANAJOHARIE
Magnitude: 50.00 EG
Reported by: 911 Call Center

Trees were reported down in Canajoharie due to thunderstorm winds.

Thunderstorm Wind in GREENE, NEW YORK
From 12-JUN-15 20:26:00 to 12-JUN-15 20:26:00 (EST-5)
Location: GREENVILLE RNBOW ARP
Magnitude: 50.00 EG
Reported by: 911 Call Center

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

Thunderstorm Wind in MONTGOMERY, NEW YORK
From 12-JUN-15 18:35:00 to 12-JUN-15 18:35:00 (EST-5)
Location: LYKERS
Magnitude: 50.00 EG
Reported by: 911 Call Center

Trees were reported down in the town of Root due to thunderstorm winds.

Thunderstorm Wind in GREENE, NEW YORK
From 12-JUN-15 20:38:00 to 12-JUN-15 20:38:00 (EST-5)
Location: CATSKILL
Magnitude: 50.00 EG
Reported by: 911 Call Center

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

Thunderstorm Wind in MONTGOMERY, NEW YORK
From 12-JUN-15 18:35:00 to 12-JUN-15 18:35:00 (EST-5)
Location: MINAVILLE
Magnitude: 50.00 EG
Reported by: 911 Call Center

Trees were reported down in Minaville due to thunderstorm winds.