A series of upper level disturbances rotated around a vertically stacked low pressure system in the Great Lakes.  These provided a focus for showers and thunderstorms to develop across southern New England.  Southerly winds drew tropical moisture over the area, resulting in very heavy rain in showers and thunderstorms that developed.  In addition, strong winds in the upper levels and 30-40 knots of deep layer shear resulted in wind damage with the strongest of these storms.

Flood in WASHINGTON, RHODE ISLAND
From 10-AUG-12 15:02:00 to 10-AUG-12 16:02:00 (EST-5)
Location: SCARBOROUGH HILLS
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Route 108 was flooded with one foot of water in the Galilee section of Narragansett.

Thunderstorm Wind in KENT, RHODE ISLAND
From 10-AUG-12 16:00:00 to 10-AUG-12 16:00:00 (EST-5)
Location: APPONAUG
Magnitude: 50.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Wires were downed by thunderstorm winds.

Thunderstorm Wind in WASHINGTON, RHODE ISLAND
From 10-AUG-12 15:30:00 to 10-AUG-12 15:30:00 (EST-5)
Location: WESTERLY
Magnitude: 50.00 EG
Property damage: 0.50K
Crop damage: 0.00K
Reported by: Amateur Radio

A large tree limb was downed by thunderstorm winds onto the deck of a house.

Thunderstorm Wind in WASHINGTON, RHODE ISLAND
From 10-AUG-12 15:35:00 to 10-AUG-12 15:35:00 (EST-5)
Location: HOPKINTON
Magnitude: 50.00 EG
Property damage: 3.00K
Crop damage: 0.00K
Reported by: Amateur Radio

A large limb and wires were downed by thunderstorm winds in the Ashaway section.

Thunderstorm Wind in WASHINGTON, RHODE ISLAND
From 10-AUG-12 15:10:00 to 10-AUG-12 15:10:00 (EST-5)
Location: NARRAGANSETT PIER
Magnitude: 50.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Umbrellas in wooden stands were snapped in two and tables were blown over by thunderstorm winds.

Thunderstorm Wind in KENT, RHODE ISLAND
From 10-AUG-12 16:09:00 to 10-AUG-12 16:09:00 (EST-5)
Location: COVENTRY CENTER
Magnitude: 40.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Amateur Radio

A large limb on Cove Road was downed onto a house, damaging the roof.

Thunderstorm Wind in KENT, RHODE ISLAND
From 10-AUG-12 16:12:00 to 10-AUG-12 16:12:00 (EST-5)
Location: RIVER PT
Magnitude: 40.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Amateur Radio

A large tree on Dogwood Drive was downed by thunderstorm winds.

Thunderstorm Wind in BRISTOL, RHODE ISLAND
From 10-AUG-12 16:30:00 to 10-AUG-12 16:30:00 (EST-5)
Location: BARRINGTON
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

An amateur weather radio operator recorded wind gusts to 65 mph on their home weather station.  No damage was reported.

Flash Flood in PROVIDENCE, RHODE ISLAND
From 10-AUG-12 16:30:00 to 10-AUG-12 17:30:00 (EST-5)
Location: VALLEY FALLS
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Several streets in Cranston flooded including Oaklawn and Fletcher Avenues, and Wilbur Street.  Gano Street in Providence flooded over the curbs.  In Pawtucket, Central Avenue flooded over the curbs.  Warren Avenue near Interstate 195 in East Providence was closed due to flooding.  At Warren Avenue and Catamore Boulevard, water was flowing up to one and a half feet deep.

Flash Flood in KENT, RHODE ISLAND
From 10-AUG-12 16:17:00 to 10-AUG-12 17:17:00 (EST-5)
Location: EAST GREENWICH
Flood cause: Heavy Rain
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Amateur Radio

A car was stuck in flood waters on Old Forge Road near the train tracks.  The left lane of Route 4 near exit 6 was under water.  The high speed lane on Route 4 also was flooded three miles before the road joins Interstate 95 North.

Flood in BRISTOL, RHODE ISLAND
From 10-AUG-12 16:31:00 to 10-AUG-12 17:31:00 (EST-5)
Location: WARREN
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Several streets in downtown Warren were flooded over the curbs.  Route 114 on the Warren/Barrington line flooded with one and a half feet of water.

Flood in KENT, RHODE ISLAND
From 10-AUG-12 16:07:00 to 10-AUG-12 17:07:00 (EST-5)
Location: GREENWOOD
Flood cause: Heavy Rain
Property damage: 15.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Post Road was flooded with cars stuck in the floodwaters.

Tornado in WASHINGTON, RHODE ISLAND
From 10-AUG-12 14:54:00 to 10-AUG-12 15:00:00 (EST-5)
Location: BLOCK IS
Tornado F-scale: EF0
Property damage: 50.00K
Crop damage: 0.00K
Reported by: Newspaper

A tornadic waterspout over the waters south of Block Island moved northward onto land as a tornado over the southern portion of the island a little before 4pm.  On Lakeside Drive, it downed several trees, deck furniture was thrown 100 yards away, and screens were blown off a house.  An anemometer at a house on Sand's Pond Road was damaged.  Fifty trees were blown down on a farm.  Several trees in New Shoreham were downed and there was lawn damage occurred on Chapel Street.  Farther to the northeast, there were eyewitness reports of a rotating column that moved steadily across a narrow region just to the west of Jerry's Point.  A path of flattened brush 50 feet wide was reported there.