A hot and humid airmass was in place across the region. This resulted in scattered thunderstorms during the afternoon and evening of August 10th. Some of these storms became severe, with one storm producing an EF1 tornado in Washington County. The storms also produced flash flooding in Ulster County. Heat indices reached the 95 to 100 degree range across the advisory area on Monday, August 10th with heat indices of the same magnitude subdued further south during the afternoon hours of August 11th.

Thunderstorm Wind in WASHINGTON, NEW YORK
From 10-AUG-20 16:16:00 to 10-AUG-20 16:16:00 (EST-5)
Location: BELCHER
Magnitude: 50.00 EG
Reported by: Trained Spotter

A large tree was uprooted at the intersection of Warnick and Callaway Streets.

Thunderstorm Wind in ALBANY, NEW YORK
From 10-AUG-20 16:18:00 to 10-AUG-20 16:18:00 (EST-5)
Location: WESTMERE
Magnitude: 50.00 EG
Reported by: Trained Spotter

Large tree limbs were downed.

Thunderstorm Wind in WASHINGTON, NEW YORK
From 10-AUG-20 16:20:00 to 10-AUG-20 16:20:00 (EST-5)
Location: WEST HEBRON
Magnitude: 50.00 EG
Reported by: 911 Call Center

Multiple trees and powerlines were downed.

Thunderstorm Wind in WASHINGTON, NEW YORK
From 10-AUG-20 16:21:00 to 10-AUG-20 16:21:00 (EST-5)
Location: BELCHER
Magnitude: 50.00 EG
Reported by: Trained Spotter

Wires were downed near the intersection of Halls Pond Road and Route 30.

Flash Flood in ULSTER, NEW YORK
From 10-AUG-20 17:20:00 to 10-AUG-20 18:10:00 (EST-5)
Location: SAUGERTIES
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Market Street was closed due to flooding.

Thunderstorm Wind in ULSTER, NEW YORK
From 10-AUG-20 15:31:00 to 10-AUG-20 15:31:00 (EST-5)
Location: SAUGERTIES
Magnitude: 50.00 EG
Reported by: Social Media

Trees were downed on Lighthouse and Clermont Streets.

Thunderstorm Wind in ULSTER, NEW YORK
From 10-AUG-20 15:36:00 to 10-AUG-20 15:36:00 (EST-5)
Location: CENTERVILLE
Magnitude: 50.00 EG
Reported by: Social Media

Trees were downed at the intersection of Fish Creek and Patch Roads, and also on Route 9W.

Thunderstorm Wind in ULSTER, NEW YORK
From 10-AUG-20 15:36:00 to 10-AUG-20 15:36:00 (EST-5)
Location: SAUGERTIES SOUTH
Magnitude: 50.00 EG
Reported by: Emergency Manager

Tree was downed on Dock Street.

Thunderstorm Wind in ULSTER, NEW YORK
From 10-AUG-20 15:40:00 to 10-AUG-20 15:40:00 (EST-5)
Location: SAUGERTIES SOUTH
Magnitude: 50.00 EG
Reported by: Emergency Manager

Numerous wires were downed.

Thunderstorm Wind in ULSTER, NEW YORK
From 10-AUG-20 16:40:00 to 10-AUG-20 16:40:00 (EST-5)
Location: SAUGERTIES SOUTH
Magnitude: 50.00 EG
Reported by: Emergency Manager

Numerous wires were downed.

Tornado in WASHINGTON, NEW YORK
From 10-AUG-20 16:05:00 to 10-AUG-20 16:10:00 (EST-5)
Location: BELCHER
Tornado F-scale: EF1
Property damage: 75.00K
Crop damage: 10.00K
Reported by: NWS Storm Survey

NWS confirms an EF1 tornado with 90 mph winds. Most of the damage observed was snapped and uprooted trees. There were a few homes that sustained shingle and roof damage. The tornado extended for about 1.5 miles and lasted about 5 minutes.

Heat in EASTERN DUTCHESS, NEW YORK
From 10-AUG-20 11:00:00 to 11-AUG-20 19:00:00 (EST-5)
Reported by: Official NWS Observations

Heat in SOUTHERN WASHINGTON, NEW YORK
From 10-AUG-20 11:00:00 to 11-AUG-20 19:00:00 (EST-5)
Reported by: Official NWS Observations

Heat in SOUTHERN HERKIMER, NEW YORK
From 10-AUG-20 11:00:00 to 11-AUG-20 19:00:00 (EST-5)
Reported by: Official NWS Observations

Heat in MONTGOMERY, NEW YORK
From 10-AUG-20 11:00:00 to 11-AUG-20 19:00:00 (EST-5)
Reported by: Official NWS Observations

Heat in NORTHERN WASHINGTON, NEW YORK
From 10-AUG-20 11:00:00 to 11-AUG-20 19:00:00 (EST-5)
Reported by: Official NWS Observations

Thunderstorm Wind in WASHINGTON, NEW YORK
From 10-AUG-20 16:40:00 to 10-AUG-20 16:40:00 (EST-5)
Location: THE HONK
Magnitude: 50.00 EG
Reported by: Social Media

A tree was downed across Route 45. Time was estimated by radar.

Flash Flood in ULSTER, NEW YORK
From 10-AUG-20 17:22:00 to 10-AUG-20 18:10:00 (EST-5)
Location: SAUGERTIES
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Bennett Avenue was closed due to flooding.

Thunderstorm Wind in DUTCHESS, NEW YORK
From 10-AUG-20 15:58:00 to 10-AUG-20 15:58:00 (EST-5)
Location: UPPER RED HOOK
Magnitude: 50.00 EG
Reported by: 911 Call Center

Trees were downed on West Kerley Corners Road.

Thunderstorm Wind in WASHINGTON, NEW YORK
From 10-AUG-20 15:58:00 to 10-AUG-20 15:58:00 (EST-5)
Location: PORTER
Magnitude: 50.00 EG
Reported by: Trained Spotter

Numerous tree limbs and dead trees downed along Route 22 near Warner Road.

Thunderstorm Wind in WASHINGTON, NEW YORK
From 10-AUG-20 16:42:00 to 10-AUG-20 16:42:00 (EST-5)
Location: SALEM
Magnitude: 50.00 EG
Reported by: 911 Call Center

A tree and wires were downed onto a roadway.

Thunderstorm Wind in COLUMBIA, NEW YORK
From 10-AUG-20 16:44:00 to 10-AUG-20 16:44:00 (EST-5)
Location: ANCRAMDALE
Magnitude: 50.00 EG
Reported by: 911 Call Center

Trees and wires were downed.

Thunderstorm Wind in ULSTER, NEW YORK
From 10-AUG-20 16:44:00 to 10-AUG-20 16:44:00 (EST-5)
Location: SAUGERTIES SOUTH
Magnitude: 50.00 EG
Reported by: Social Media

Trees were downed in Glasco.

Thunderstorm Wind in DUTCHESS, NEW YORK
From 10-AUG-20 17:08:00 to 10-AUG-20 17:08:00 (EST-5)
Location: NORTHEAST CENTER
Magnitude: 50.00 EG
Reported by: 911 Call Center

Trees and wires were downed on McGhee Hill Road.

Thunderstorm Wind in ALBANY, NEW YORK
From 10-AUG-20 16:07:00 to 10-AUG-20 16:07:00 (EST-5)
Location: KEEFERS CORNERS
Magnitude: 50.00 EG
Reported by: 911 Call Center

A tree was downed.

Thunderstorm Wind in ALBANY, NEW YORK
From 10-AUG-20 16:16:00 to 10-AUG-20 16:16:00 (EST-5)
Location: GUILDERLAND
Magnitude: 50.00 EG
Reported by: 911 Call Center

A tree was downed across East Old State Road.

Thunderstorm Wind in COLUMBIA, NEW YORK
From 10-AUG-20 16:16:00 to 10-AUG-20 16:16:00 (EST-5)
Location: HILLSDALE
Magnitude: 50.00 EG
Reported by: 911 Call Center

A couple of trees and wires were downed.

Thunderstorm Wind in DUTCHESS, NEW YORK
From 10-AUG-20 18:22:00 to 10-AUG-20 18:22:00 (EST-5)
Location: WASHINGTON HOLLOW
Magnitude: 50.00 EG
Reported by: 911 Call Center

A tree was downed on Fowler Road.

Heat in EASTERN COLUMBIA, NEW YORK
From 10-AUG-20 11:00:00 to 11-AUG-20 19:00:00 (EST-5)
Reported by: Official NWS Observations

Heat in SOUTHEAST WARREN, NEW YORK
From 10-AUG-20 11:00:00 to 11-AUG-20 19:00:00 (EST-5)
Reported by: Official NWS Observations

Heat in EASTERN ALBANY, NEW YORK
From 10-AUG-20 11:00:00 to 11-AUG-20 19:00:00 (EST-5)
Reported by: Official NWS Observations

Heat in EASTERN SCHENECTADY, NEW YORK
From 10-AUG-20 11:00:00 to 11-AUG-20 19:00:00 (EST-5)
Reported by: Official NWS Observations

Heat in NORTHERN SARATOGA, NEW YORK
From 10-AUG-20 11:00:00 to 11-AUG-20 19:00:00 (EST-5)
Reported by: Official NWS Observations

Heat in SOUTHERN SARATOGA, NEW YORK
From 10-AUG-20 11:00:00 to 11-AUG-20 19:00:00 (EST-5)
Reported by: Official NWS Observations

Heat in WESTERN RENSSELAER, NEW YORK
From 10-AUG-20 11:00:00 to 11-AUG-20 19:00:00 (EST-5)
Reported by: Official NWS Observations

Heat in EASTERN GREENE, NEW YORK
From 10-AUG-20 11:00:00 to 11-AUG-20 19:00:00 (EST-5)
Reported by: Official NWS Observations

Heat in WESTERN COLUMBIA, NEW YORK
From 10-AUG-20 11:00:00 to 11-AUG-20 19:00:00 (EST-5)
Reported by: Official NWS Observations

Heat in EASTERN ULSTER, NEW YORK
From 10-AUG-20 11:00:00 to 11-AUG-20 19:00:00 (EST-5)
Reported by: Official NWS Observations

Heat in WESTERN DUTCHESS, NEW YORK
From 10-AUG-20 11:00:00 to 11-AUG-20 19:00:00 (EST-5)
Reported by: Official NWS Observations

Thunderstorm Wind in WASHINGTON, NEW YORK
From 10-AUG-20 14:46:00 to 10-AUG-20 14:46:00 (EST-5)
Location: PILOT KNOB
Magnitude: 50.00 EG
Reported by: 911 Call Center

A tree was downed across Shelving Rock Road.