Slow-moving thunderstorms trained over Rensselaer County during the afternoon of the 14th, resulting in a bullseye of 2-5 of rainfall over two to three hours over central and southern portions of the county. The runoff from the rainfall washed out or destroyed numerous roads and bridges, some of which would take weeks to months to reconstruct. Damages to roads and bridges totaled around $3 million, according to county officials. The Rensselaer County Executive declared a state of emergency and urged no unnecessary travel after the storms. Governor Hochul requested a Physical Disaster Declaration from the Small Business Administration, citing major damage to 18 homes and 9 businesses totaling $1.895 million, and minor damage to 281 homes and 14 businesses totaling $2.3 million. Some flash flooding extended into the northern portion of Columbia County as well. Some of the storms also produced wind damage with reports of trees and wires down.

Flash Flood in RENSSELAER, NEW YORK
From 14-JUL-21 15:50:00 to 14-JUL-21 17:45:00 (EST-5)
Location: EAST GREENBUSH
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

There were reports of water reaching homes and flooding basements along Berkshire Drive and Evergreen Way.

Flash Flood in COLUMBIA, NEW YORK
From 14-JUL-21 18:10:00 to 14-JUL-21 21:10:00 (EST-5)
Location: NEW CONCORD
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: 911 Call Center

New Concord Road was flooded between State Route 295 and County Route 9.

Flash Flood in COLUMBIA, NEW YORK
From 14-JUL-21 18:08:00 to 14-JUL-21 21:10:00 (EST-5)
Location: CHATHAM
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: 911 Call Center

State Route 66 at the intersection of Dardess Drive was flooded.

Flash Flood in COLUMBIA, NEW YORK
From 14-JUL-21 18:10:00 to 14-JUL-21 21:10:00 (EST-5)
Location: CANAAN
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: 911 Call Center

State Route 295 was reported flooded at Colane Road Intersection.

Flash Flood in COLUMBIA, NEW YORK
From 14-JUL-21 18:15:00 to 14-JUL-21 21:10:00 (EST-5)
Location: RED ROCK
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: 911 Call Center

There was a report that County Route 24 between County Route 9 and Stonewall Road was flooded.

Flood in RENSSELAER, NEW YORK
From 14-JUL-21 19:41:00 to 14-JUL-21 21:10:00 (EST-5)
Location: WYNANTSKILL
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

There were reports of evacuations of about 10 homes along Wyantskill Creek near Brookside Avenue.

Thunderstorm Wind in WASHINGTON, NEW YORK
From 14-JUL-21 13:54:00 to 14-JUL-21 13:54:00 (EST-5)
Location: COILA
Magnitude: 50.00 EG
Reported by: 911 Call Center

There was a report of trees down blocking Coila Road.

Flash Flood in RENSSELAER, NEW YORK
From 14-JUL-21 16:30:00 to 14-JUL-21 18:55:00 (EST-5)
Location: MILLERS CORNER
Flood cause: Heavy Rain
Property damage: 500.00K
Crop damage: 0.00K
Reported by: Local Official

There was a significant amount of flood damage to the northern portion of the Town of Nassau. Several roads were closed, including Burden Lake Road and Nassau-Averill Park Road. Route 66 was closed due to debris over the road at Pike's Pond.

Thunderstorm Wind in RENSSELAER, NEW YORK
From 14-JUL-21 13:43:00 to 14-JUL-21 13:43:00 (EST-5)
Location: POESTENKILL
Magnitude: 50.00 EG
Reported by: 911 Call Center

There were several reports of trees and wires down in the Poestenkill area.

Flash Flood in RENSSELAER, NEW YORK
From 14-JUL-21 14:35:00 to 14-JUL-21 16:35:00 (EST-5)
Location: CLUMS CORNER
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Route 278 and Route 7 were flooded with 2-3 feet of moving water at the intersection. There were reports that Route 278 was impassable and closed.

Thunderstorm Wind in RENSSELAER, NEW YORK
From 14-JUL-21 14:12:00 to 14-JUL-21 14:12:00 (EST-5)
Location: BRUNSWICK CENTER
Magnitude: 50.00 EG
Reported by: 911 Call Center

There were several reports of trees and wires down in Center Brunswick.

Flash Flood in RENSSELAER, NEW YORK
From 14-JUL-21 14:45:00 to 14-JUL-21 17:10:00 (EST-5)
Location: BRUNSWICK CENTER
Flood cause: Heavy Rain
Property damage: 200.00K
Crop damage: 0.00K
Reported by: 911 Call Center

There were several reports of roads flooded or washed out in the Brunswick area, including Moonlawn Road.

Flash Flood in RENSSELAER, NEW YORK
From 14-JUL-21 14:55:00 to 14-JUL-21 17:10:00 (EST-5)
Location: EAGLE MILLS
Flood cause: Heavy Rain
Property damage: 500.00K
Crop damage: 0.00K
Reported by: 911 Call Center

There were several reports of roads flooded or washed out in the Eagle Mills area, including Garfield Road, Creek Road, and Dater Hill Road.

Flash Flood in RENSSELAER, NEW YORK
From 14-JUL-21 15:30:00 to 14-JUL-21 17:12:00 (EST-5)
Location: TROY RENSSELAER ARPT
Flood cause: Heavy Rain
Property damage: 500.00K
Crop damage: 0.00K
Reported by: Emergency Manager

There were several reports of roads flooded and washed out in the Poestenkill area, including Plank Road, Snyders Corner Road, and Blue Factory Road.

Flash Flood in RENSSELAER, NEW YORK
From 14-JUL-21 15:35:00 to 14-JUL-21 17:45:00 (EST-5)
Location: WEST SAND LAKE
Flood cause: Heavy Rain
Property damage: 500.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Several inches of moving water was reported flowing over Route 43 in several locations between West Sand Lake and Averill Park. Route 66 was washed out as well north of Averill Park. Several other roads were closed or washed out in the Town of Sand Lake, including Holcomb Road, Burden Lake Road, Old Best Road, and Taborton Road.

Flash Flood in RENSSELAER, NEW YORK
From 14-JUL-21 15:50:00 to 14-JUL-21 17:45:00 (EST-5)
Location: EAST GREENBUSH
Flood cause: Heavy Rain
Property damage: 50.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

One lane of Columbia Turnpike was reported closed. In addition, rocks and debris were washed onto some roads in the East Greenbush area.

Flash Flood in RENSSELAER, NEW YORK
From 14-JUL-21 16:15:00 to 14-JUL-21 18:55:00 (EST-5)
Location: EAST GREENBUSH
Flood cause: Heavy Rain
Property damage: 200.00K
Crop damage: 0.00K
Reported by: 911 Call Center

There were several reports of roads flooded or washed out in the town of Schodack.

Flash Flood in RENSSELAER, NEW YORK
From 14-JUL-21 16:20:00 to 14-JUL-21 18:55:00 (EST-5)
Location: SAND LAKE
Flood cause: Heavy Rain
Property damage: 500.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Several roads were closed or washed out due to flooding in the eastern portion of Sand Lake, including Holcomb Road, North Nassau Road, and Burden Lake Road. A parking lot was washed out at a restaurant on Crooked Lake.