On Sept. 1, Tropical Depression Ida tracked northeasward from the central Appalachians and arrived in southern New England late in the day as a remnant low. The low moved rather swiftly across southern New England, reaching the coastal waters east of Massachusetts by 7 AM EDT on Sept. 2.  One to three inches of rain fell in northwest Massachusetts, but heavy amounts of 4.0 to 6.5 inches fell south of the Mass Pike, with the heaviest amounts, near 7 inches, in the upper portion of Cape Cod.  The most intense rain fell from the evening on the 1st to the early morning on the 2nd. There was widespread street flooding and some flash flooding.  In addition, a brief tornado touched down in Dennis, MA (on Cape Cod) during the overnight hours.

Flash Flood in PLYMOUTH, MASSACHUSETTS
From 02-SEP-21 05:30:00 to 02-SEP-21 07:00:00 (EST-5)
Location: WHITE IS SHRS
Flood cause: Heavy Rain
Property damage: 25.00K
Crop damage: 0.00K
Reported by: Broadcast Media

In Wareham, on Shangri-La Blvd., flash flooding fractured and washed out a portion of the roadway.

Flood in MIDDLESEX, MASSACHUSETTS
From 02-SEP-21 01:21:00 to 02-SEP-21 02:00:00 (EST-5)
Location: AYER
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

In Ayer, Bishop Road was closed from Fort Devens to MacPherson Road due to flooding.

Flood in MIDDLESEX, MASSACHUSETTS
From 02-SEP-21 01:22:00 to 02-SEP-21 02:00:00 (EST-5)
Location: MONTVALE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

In Winchester, Cross Street and the Cross Street Bridge near the Aberjona River was closed due to flooding.

Flood in PLYMOUTH, MASSACHUSETTS
From 02-SEP-21 03:27:00 to 02-SEP-21 04:27:00 (EST-5)
Location: MONTELLO
Flood cause: Heavy Rain
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Law Enforcement

In Brockton, a car was stuck in flood waters on North Main Street between Battles Street and East Main Street.  Report relayed by amateur radio operators.

Flood in ESSEX, MASSACHUSETTS
From 02-SEP-21 03:30:00 to 02-SEP-21 04:30:00 (EST-5)
Location: PEABODY
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

In Peabody, Walnut Street was closed due to flooding.

Flood in BRISTOL, MASSACHUSETTS
From 02-SEP-21 02:32:00 to 02-SEP-21 03:32:00 (EST-5)
Location: TAUNTON
Flood cause: Heavy Rain
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Amateur Radio

In Taunton, a car was stuck in flood waters on Washburn Street.

Flash Flood in BARNSTABLE, MASSACHUSETTS
From 02-SEP-21 00:55:00 to 02-SEP-21 01:55:00 (EST-5)
Location: BOURNE
Flood cause: Heavy Rain
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Amateur Radio

The Bourne rotary was flooded with two cars stuck in the water.  Basement flooding also occurred in the area.

Flash Flood in WORCESTER, MASSACHUSETTS
From 02-SEP-21 05:10:00 to 02-SEP-21 06:10:00 (EST-5)
Location: WEST BOYLSTON
Flood cause: Heavy Rain
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

In West Boylston, the Fire Department showed a Facebook photo of a driveway and part of a road was washed out by flood waters, with a white sedan hanging over the washed out road.  Exact street unknown.

Flash Flood in WORCESTER, MASSACHUSETTS
From 02-SEP-21 00:55:00 to 02-SEP-21 02:09:00 (EST-5)
Location: WESTWOOD HILLS
Flood cause: Heavy Rain
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Amateur Radio

In Worcester, numerous roads were closed due to flooding, especially on the west and south sides of the city.  At 155 AM EDT (1255 AM EST), Cambridge Street was flooded and impassable.  At 211 AM EDT, Merrick Street at Pelham Street was closed due to flooding.  At 230 AM EDT, parts of Southbridge Street and parts of Quinsigamond Avenue were closed due to flooding.  At 318 AM EDT, a car was stuck in flooded waters at the intersection of Cambridge Street and Kansas Street.

Thunderstorm Wind in BRISTOL, MASSACHUSETTS
From 02-SEP-21 03:30:00 to 02-SEP-21 03:30:00 (EST-5)
Location: SOUTH DARTMOUTH
Magnitude: 56.00 EG
Property damage: 15.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

Damage in Dartmouth was consistent with straight-line winds with maximum gusts estimated at 65 mph.  The damage occurred on Sunset lane and adjacent portions of Stoneledge Road to the north and Swift road to the south.  Large maple and oak trees were mostly blown down and some large branches were broken off of others.

Flood in WORCESTER, MASSACHUSETTS
From 02-SEP-21 01:30:00 to 02-SEP-21 02:30:00 (EST-5)
Location: EAST VLG
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

In Webster, Route 12 (Worcester Road) at Tanner Road was flooded and impassable.  Other sections of Route 12 were flooded.

Flood in WORCESTER, MASSACHUSETTS
From 02-SEP-21 01:30:00 to 02-SEP-21 02:00:00 (EST-5)
Location: MILLBURY
Flood cause: Heavy Rain
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Amateur Radio

In Millbury, a car was stuck in flood waters on Grafton Street.

Flash Flood in HAMPDEN, MASSACHUSETTS
From 02-SEP-21 06:30:00 to 02-SEP-21 07:30:00 (EST-5)
Location: WESTFIELD
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

In Westfield, the media showed a Twitter photo of the Powdermill Brook overflowing its banks and leading to flash flooding on Greenwood Street in Westfield.

Flood in HAMPDEN, MASSACHUSETTS
From 02-SEP-21 01:00:00 to 02-SEP-21 01:30:00 (EST-5)
Location: GILLETT CORNER
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

In Southwick, the intersection of U.S. Route 202 and State Highway 168 was flooded and impassable.

Flood in WORCESTER, MASSACHUSETTS
From 02-SEP-21 01:00:00 to 02-SEP-21 01:30:00 (EST-5)
Location: DUDLEY HILL
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

In Dudley, West Main Street was flooded and impassable.

Thunderstorm Wind in BARNSTABLE, MASSACHUSETTS
From 02-SEP-21 00:29:00 to 02-SEP-21 00:30:00 (EST-5)
Location: YARMOUTH
Magnitude: 70.00 EG
Property damage: 40.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

A NWS survey determined damage in Yarmouth to be from straight-line winds, with maximum gusts estimated around 80 mph.  The damage was concentrated in a small area along Old Hyannis Road, south of Corporation Road.  Numerous pine and oak trees were snapped and some were uprooted, generally all down to the north or northeast.

Flash Flood in MIDDLESEX, MASSACHUSETTS
From 02-SEP-21 06:56:00 to 02-SEP-21 07:56:00 (EST-5)
Location: BEAVER BROOK
Flood cause: Heavy Rain
Property damage: 400.00K
Crop damage: 0.00K
Reported by: Broadcast Media

In Waltham, adjacent to Lexington Street, significant flooding occurred in a parking lot full of unoccupied school buses.  Eight school buses were unable to be moved due to flood waters reaching as high as the engine battery levels.  Broadcast media showed a Twitter photo of this event.

Flood in BRISTOL, MASSACHUSETTS
From 02-SEP-21 02:00:00 to 02-SEP-21 07:00:00 (EST-5)
Location: NEW BEDFORD
Flood cause: Heavy Rain
Property damage: 20.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

Several streets were closed due to flooding and several basements were flooded, but there were no evacuations needed in the city.

Flash Flood in SUFFOLK, MASSACHUSETTS
From 02-SEP-21 02:22:00 to 02-SEP-21 04:22:00 (EST-5)
Location: BACK BAY ANNEX
Flood cause: Heavy Rain
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Amateur Radio

In Boston, an underpass of Storrow Drive eastbound had flood waters 3-4 feet deep. A driver was trapped and was rescued.  On the MBTA line, train tracks on the Orange line were flooded in the vicinity of Ruggles, Back Bay, and Hyde Park.  In the Dorchester section of Boston, Morton Street at West Main Street was flooded and impassable.

Tornado in BARNSTABLE, MASSACHUSETTS
From 02-SEP-21 00:30:00 to 02-SEP-21 00:31:00 (EST-5)
Location: DENNIS
Tornado F-scale: EF0
Property damage: 15.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

A weak tornado briefly touched down at 130 AM in Dennis early in the morning and lasted for less than one minute.  Damage was observed near the intersection of East Bay View Road and Wampanoag Trail.  One home sustained damage when a window of a sun porch was blown in and others on an adjacent side were blown out.  Outside patio furniture was lofted and landed across the street.  Another house across the street had shingles blown off the roof in the opposite direction from other damage that was observed.  Three large oak trees in the area also were blown down.  One resident received the tornado warning prior to 1 AM and was able to seek shelter in the basement.  The estimated maximum wind speed was 75 mph.

Flash Flood in BRISTOL, MASSACHUSETTS
From 02-SEP-21 01:47:00 to 02-SEP-21 07:00:00 (EST-5)
Location: WATUPPA
Flood cause: Heavy Rain
Property damage: 120.00K
Crop damage: 0.00K
Reported by: Amateur Radio

In Fall River, flash flooding began as early as 247 AM EDT (147 AM EST), when Bedford Street and Stinziano Street became impassable.  The flash flooding then became widespread as rainfall increased. At 321 AM EDT, Cove Street was flooded and impassable.  A car was stuck in the flood waters and a person needed to be rescued.    By daybreak, numerous roadways were flooded and impassable.  Busy Route 24 was shut down in both directions due to flooding, with stalled vehicles blocking the highway.  The northbound ramp to Route 24 on I-195 also was flooded, with cars stuck.  A portion of Spencer Street had significant damage due to the rain.  On South Main Street, a building undergoing renovations collapsed due to the heavy rainfall.  A CoCoRAHS observer in Fall River recorded a total of 4.25 inches or rain but a CoCoRAHS observer in nearby Fairhaven recorded 6.34 inches.