An upper level disturbance moved over southern New England bringing showers and thunderstorms to the region.  Precipitable water values over two inches indicated a very moist atmosphere; in addition, weak winds at the mid levels resulted in very slow moving storms.  Both of these things led to torrential rainfall and flash flooding.  Convergence at the surface and a significantly unstable environment resulted in a shower producing a waterspout over the Quabbin Reservoir in New Salem, Massachusetts.  A Massachusetts Department of Conservation and Recreation (DCR) employee at the reservoir was able to snap several photos of the waterspout and reported that it never moved onto land.

Flood in MIDDLESEX, MASSACHUSETTS
From 01-SEP-13 08:15:00 to 01-SEP-13 09:00:00 (EST-5)
Location: FRAMINGHAM
Flood cause: Heavy Rain
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Route 9 was flooded in both directions at Route 126, making Route 9 impassable.  Speen Street at Cochituate Road was also flooded with a car stuck in the flood waters there.

Flash Flood in NORFOLK, MASSACHUSETTS
From 01-SEP-13 08:07:00 to 01-SEP-13 09:18:00 (EST-5)
Location: WELLESLEY FELLS
Flood cause: Heavy Rain
Property damage: 80.00K
Crop damage: 0.00K
Reported by: Amateur Radio

A complex of showers and thunderstorms developed over the Wellesley/Needham area.  These storms moved very slowly, if at all, producing three to four inches of rain over the region in 1 to 2 hours time.  This resulted in widespread flash flooding across both cities.  Several streets, including a few major highways were closed due to flooding including:  Washington Street, Route 9, Route 16, Route 128 at exit 19, Great Plain Avenue, and Weston Road.  Many cars were stuck in flood waters on these roads and across intersections.  Numerous basements also were flooded in this region.

Hail in NORFOLK, MASSACHUSETTS
From 01-SEP-13 08:21:00 to 01-SEP-13 08:21:00 (EST-5)
Location: NEEDHAM
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Flood in SUFFOLK, MASSACHUSETTS
From 01-SEP-13 08:57:00 to 01-SEP-13 09:30:00 (EST-5)
Location: WEST ROXBURY
Flood cause: Heavy Rain
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Heavy rain fell flooding a portion of Spring Street in front of the Shaw's supermarket in West Roxbury.  A car got stuck in these flood waters.

Flash Flood in NORFOLK, MASSACHUSETTS
From 01-SEP-13 09:22:00 to 01-SEP-13 10:00:00 (EST-5)
Location: NORTH RANDOLPH
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Two feet of water flooded Route 28 in front of the fire station.  The road was closed for approximately an hour while the water receded.

Flash Flood in NORFOLK, MASSACHUSETTS
From 01-SEP-13 09:13:00 to 01-SEP-13 09:45:00 (EST-5)
Location: (OWD)NORWOOD MEM ARP
Flood cause: Heavy Rain
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Heavy rain fell across the metro west region, flooding Nahatan Street at the railroad bridge with several feet of water.  A car was stuck in the flood waters.

Lightning in NORFOLK, MASSACHUSETTS
From 01-SEP-13 09:55:00 to 01-SEP-13 09:55:00 (EST-5)
Location: WOLLASTON
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Lightning struck the bell tower at Bethany Congregational Church in Quincy, damaging one of the pinnacles and sending stone debris to the ground and through the ceiling of the church.

Flash Flood in NORFOLK, MASSACHUSETTS
From 01-SEP-13 11:18:00 to 01-SEP-13 12:30:00 (EST-5)
Location: WELLESLEY FELLS
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Another round of heavy rain, resulted in renewed flooding across Wellesley and Natick.  Natick flooding reports will be in another entry for Middlesex County.  In Wellesley, many roads were flooded, including: Wellesley Avenue, Brook, Washington, Cottage and Worcester Streets, and Ingraham, Dover, and Amherst Roads.

Flash Flood in MIDDLESEX, MASSACHUSETTS
From 01-SEP-13 11:16:00 to 01-SEP-13 12:00:00 (EST-5)
Location: FRAMINGHAM
Flood cause: Heavy Rain
Property damage: 30.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Another round of heavy rain resulted in renewed flooding across Wellesley and Natick.  Information on flooding in Wellesley can be found in a similar report for Norfolk County.  In Natick, a car became stuck in flood waters on South Main Street.  Flooding occurred under the Willow Bridge.  Route 9 near the Natick Police Department, Pearl Street, and Plain Streets were all flooded and impassable.

Tornado in FRANKLIN, MASSACHUSETTS
From 01-SEP-13 17:25:00 to 01-SEP-13 17:26:00 (EST-5)
Location: BACONVILLE
Tornado F-scale: EF0
Property damage: 0.00K
Crop damage: 0.00K
Reported by: State Official

A Massachusetts Department of Conservation and Recreation employee observed a waterspout on Quabbin Reservoir in New Salem, MA.  He was able to snap two pictures of the storm, one showing a funnel and another showing the funnel extended down to the water.  The time has been approximated based on radar imagery.  The waterspout was very short lived, never hit land, and did no damage and injured no people.  Winds aloft were not conducive for tornadic development, but the environment was unstable and a surface front was moving through the region.