A strong upper-level system brought widespread rounds of showers and thunderstorms to eastern New York on July 9-11, 2023. The steadiest and heaviest rainfall occurred during the afternoon hours on July 9, the early morning hours on July 10 and during the evening hours on July 10 into the overnight hours on July 11. Rainfall totals varied greatly from region to region but the hardest hit areas (Hudson Valley and into northeastern Hamilton County) received 3 to 6 inches of rainfall.
Areal and flash flooding was primarily focused across areas along the Hudson River on July 9-10. Damage consisted of closed and washed out roads. A section of Metro-North's railroad tracks were washed out due to flood waters from Poughkeepsie southward.
The combination of heavy rain and beaver dam failures resulted in destruction of roads, bridges and sidewalks across northeastern Hamilton County during the early morning hours on July 11 focused on the areas of Long Lake and Blue Mountain Lake. A State of Emergency was declared for the towns of Long Lake and Indian Lake. New York Governor Kathy Hochul declared a State of Emergency for Hamilton County. Hamilton County Emergency Manager estimated damage to be in the millions of dollars.
In addition to the heavy rainfall, a few severe thunderstorms also developed across portions of the Hudson Valley leading to downed trees and wires. A lightning strike caused an auto body shop to catch fire.

Flash Flood in DUTCHESS, NEW YORK
From 09-JUL-23 15:42:00 to 09-JUL-23 16:30:00 (EST-5)
Location: POUGHQUAG
Flood cause: Heavy Rain
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Social Media

Water and debris was over Pleasant Ridge Road near Poughquag.

Flash Flood in DUTCHESS, NEW YORK
From 09-JUL-23 16:24:00 to 09-JUL-23 18:00:00 (EST-5)
Location: DUTCHESS JCT
Flood cause: Heavy Rain
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Route 9D was closed near Slocum Road in the City of Beacon due to flooding.

Flash Flood in DUTCHESS, NEW YORK
From 10-JUL-23 03:30:00 to 10-JUL-23 05:00:00 (EST-5)
Location: STORMVILLE
Flood cause: Heavy Rain
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Law Enforcement

The Taconic State Parkway was flooded at the Beekman Road Ramp.

Thunderstorm Wind in ALBANY, NEW YORK
From 09-JUL-23 14:16:00 to 09-JUL-23 14:16:00 (EST-5)
Location: ALBANY
Magnitude: 50.00 EG
Reported by: Trained Spotter

Multiple trees and wires were downed across the City of Albany including on North Lake Avenue and 3rd Avenue. A few small trees and tree limbs were also reported down near Washington Park and the intersection of Madison Avenue and New Scotland Avenue.

Flood in ALBANY, NEW YORK
From 10-JUL-23 04:20:00 to 10-JUL-23 06:00:00 (EST-5)
Location: GREEN IS
Flood cause: Heavy Rain
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Department of Highways

Route 32 was closed between Tibbits Avenue and Bridge Avenue due to flooding.

Thunderstorm Wind in ALBANY, NEW YORK
From 09-JUL-23 14:28:00 to 09-JUL-23 14:28:00 (EST-5)
Location: HARTMANS CORNERS
Magnitude: 50.00 EG
Reported by: Public

Trees and wires were downed in Guilderland.

Flood in DUTCHESS, NEW YORK
From 09-JUL-23 14:45:00 to 09-JUL-23 16:45:00 (EST-5)
Location: BILLINGS
Flood cause: Heavy Rain
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Street flooding was reported along Route 82 near East Noxon Road in Lagrangeville.

Thunderstorm Wind in ALBANY, NEW YORK
From 09-JUL-23 14:25:00 to 09-JUL-23 14:25:00 (EST-5)
Location: WESTMERE
Magnitude: 50.00 EG
Reported by: NWS Employee

A large tree and wires were downed on Johnston Road between Western Avenue and Church Road.

Lightning in SARATOGA, NEW YORK
From 09-JUL-23 14:45:00 to 09-JUL-23 14:45:00 (EST-5)
Location: MECHANICVILLE
Property damage: 40.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Lightning struck a propane tank and caused an automotive body shop to catch fire.

Flash Flood in DUTCHESS, NEW YORK
From 10-JUL-23 04:05:00 to 10-JUL-23 05:45:00 (EST-5)
Location: HAVILAND
Flood cause: Heavy Rain
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Newspaper

State Route 343 was closed in both directions at Old Route 22 due to flooding in Dover Plains.

Flood in DUTCHESS, NEW YORK
From 10-JUL-23 05:00:00 to 10-JUL-23 09:00:00 (EST-5)
Location: STORMVILLE
Flood cause: Heavy Rain
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Law Enforcement

The Taconic State Parkway was flooded at the Beekman Road Ramp.

Flash Flood in DUTCHESS, NEW YORK
From 10-JUL-23 04:05:00 to 10-JUL-23 05:30:00 (EST-5)
Location: ARTHURSBURG
Flood cause: Heavy Rain
Property damage: 3.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Emans Road at State Route 82 was flooded due to heavy rainfall.

Thunderstorm Wind in SARATOGA, NEW YORK
From 09-JUL-23 14:48:00 to 09-JUL-23 14:48:00 (EST-5)
Location: COONS
Magnitude: 50.00 EG
Reported by: Trained Spotter

Power lines and poles were reported down near Route 67 and George Thompson Road near Mechanicville.

Flood in SARATOGA, NEW YORK
From 09-JUL-23 15:05:00 to 09-JUL-23 17:00:00 (EST-5)
Location: MECHANICVILLE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

South Central Avenue was flooded underneath a railroad viaduct in Mechanicville.

Flood in ULSTER, NEW YORK
From 09-JUL-23 13:18:00 to 09-JUL-23 18:15:00 (EST-5)
Location: KYSERVILLE
Flood cause: Heavy Rain
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

Creek Road was flooded near Accord in the Town of Rochester.

Flood in DUTCHESS, NEW YORK
From 09-JUL-23 15:50:00 to 09-JUL-23 22:00:00 (EST-5)
Location: POUGHKEEPSIE
Flood cause: Heavy Rain
Property damage: 100.00K
Crop damage: 0.00K
Reported by: Newspaper

A section of Metro-North's railroad tracks were washed out due to flood waters from Poughkeepsie southward.

Flood in HAMILTON, NEW YORK
From 11-JUL-23 00:30:00 to 11-JUL-23 05:00:00 (EST-5)
Location: SABATTIS
Flood cause: Heavy Rain
Property damage: 2.50M
Crop damage: 0.00K
Reported by: Department of Highways

The combination of heavy rainfall and beaver dam failures resulted in the destruction of roads, bridges and sidewalks in the areas of Long Lake and Blue Mountain Lake. This included Route 28N between Blue Mountain Lake and the Essex County line toward Newcomb and Route 30 from Long Lake to the Franklin County line heading toward Tupper Lake. Nearby homes were also flooded.

Flash Flood in SARATOGA, NEW YORK
From 09-JUL-23 15:08:00 to 09-JUL-23 17:00:00 (EST-5)
Location: MECHANICVILLE ARPT
Flood cause: Heavy Rain
Property damage: 30.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Various portions of Route 4 and Route 32 were flooded between Mechanicville and Waterford. A portion of Lower Newtown Road was washed out.

Flash Flood in RENSSELAER, NEW YORK
From 09-JUL-23 15:30:00 to 09-JUL-23 17:00:00 (EST-5)
Location: MELROSE
Flood cause: Heavy Rain
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Department of Highways

Route 40 between Pine Woods Road and Doty Avenue was closed in both directions due to flooding.

Flash Flood in ULSTER, NEW YORK
From 09-JUL-23 12:35:00 to 09-JUL-23 15:00:00 (EST-5)
Location: OHIOVILLE
Flood cause: Heavy Rain
Property damage: 20.00K
Crop damage: 0.00K
Reported by: Newspaper

South Street between U.S. Route 44 and State Route 299 was closed due to flooding.

Flood in ULSTER, NEW YORK
From 09-JUL-23 13:52:00 to 09-JUL-23 18:15:00 (EST-5)
Location: PLATTEKILL
Flood cause: Heavy Rain
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

Portions of Quaker Street near Plattekill were flooded.

Thunderstorm Wind in RENSSELAER, NEW YORK
From 09-JUL-23 13:20:00 to 09-JUL-23 13:20:00 (EST-5)
Location: EAGLE BRIDGE
Magnitude: 50.00 EG
Reported by: 911 Call Center

A tree was downed near the intersection of Route 67 and Eagle Bridge Road near Hoosick. A tree was also downed on a house.

Thunderstorm Wind in RENSSELAER, NEW YORK
From 09-JUL-23 14:37:00 to 09-JUL-23 14:37:00 (EST-5)
Location: SCHAGHTICOKE HILL
Magnitude: 50.00 EG
Reported by: Trained Spotter

Many branches and a few trees were downed along Route 40 south of Schaghticoke.

Flood in ULSTER, NEW YORK
From 09-JUL-23 15:00:00 to 10-JUL-23 03:00:00 (EST-5)
Location: OHIOVILLE
Flood cause: Heavy Rain
Property damage: 20.00K
Crop damage: 0.00K
Reported by: Newspaper

South Street between U.S. Route 44 and State Route 299 was closed due to flooding.