A relatively stationary front meandered across southern New England on the 17th and 18th while low pressure slowly moved along the front.  At upper levels, an upper low was moving slowly eastward from the Great Lakes.  With very moisture-laden air in place across the region, the result was heavy rain and flash flooding. In addition, there were rounds of severe thunderstorms and even a weak tornado in northern Connecticut. Rainfall totals ranged from 3.0 to 5.6 inches in northern Connecticut and western and central Massachusetts.  Mainly 1.0 to 2.0 inches fell in Rhode Island and eastern Massachusetts.

Flood in WORCESTER, MASSACHUSETTS
From 17-JUL-21 16:21:00 to 17-JUL-21 16:30:00 (EST-5)
Location: MT ST JAMES
Flood cause: Heavy Rain
Property damage: 4.00K
Crop damage: 0.00K
Reported by: Amateur Radio

In the southern part of Worcester, cars were stuck in flood waters at Millbury Street and McKeon Road.

Flash Flood in WORCESTER, MASSACHUSETTS
From 17-JUL-21 16:24:00 to 17-JUL-21 16:30:00 (EST-5)
Location: SOUTH WORCESTER
Flood cause: Heavy Rain
Property damage: 20.00K
Crop damage: 0.00K
Reported by: Amateur Radio

In Worcester, flash flood waters were up to car windshields on Dale Street.

Flash Flood in WORCESTER, MASSACHUSETTS
From 17-JUL-21 17:07:00 to 17-JUL-21 17:07:00 (EST-5)
Location: SOUTH WORCESTER
Flood cause: Heavy Rain
Property damage: 8.00K
Crop damage: 0.00K
Reported by: Amateur Radio

In Worcester, five cars were stuck in flood waters at Dewey Street and Parker Street.

Hail in WORCESTER, MASSACHUSETTS
From 17-JUL-21 16:15:00 to 17-JUL-21 16:15:00 (EST-5)
Location: CLINTON
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

In Clinton, quarter size hail was reported.

Hail in WORCESTER, MASSACHUSETTS
From 17-JUL-21 16:22:00 to 17-JUL-21 16:22:00 (EST-5)
Location: BERLIN
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

In Berlin, half dollar size hail was reported.

Thunderstorm Wind in WORCESTER, MASSACHUSETTS
From 17-JUL-21 15:27:00 to 17-JUL-21 15:27:00 (EST-5)
Location: AUBURN
Magnitude: 50.00 EG
Property damage: 5.50K
Crop damage: 0.00K
Reported by: Amateur Radio

In Auburn, a utility pole and wires were down on Rock Avenue.

Thunderstorm Wind in HAMPDEN, MASSACHUSETTS
From 17-JUL-21 15:29:00 to 17-JUL-21 15:29:00 (EST-5)
Location: VINING HILL
Magnitude: 50.00 EG
Property damage: 0.50K
Crop damage: 0.00K
Reported by: Amateur Radio

In Southwick, a tree was down on Fred Jackson Road.

Thunderstorm Wind in WORCESTER, MASSACHUSETTS
From 17-JUL-21 15:56:00 to 17-JUL-21 15:56:00 (EST-5)
Location: WESTWOOD HILLS
Magnitude: 50.00 EG
Property damage: 1.30K
Crop damage: 0.00K
Reported by: Amateur Radio

In Worcester, trees and wires were down on Havelock Road.

Flood in FRANKLIN, MASSACHUSETTS
From 17-JUL-21 20:55:00 to 17-JUL-21 20:55:00 (EST-5)
Location: DEERFIELD
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

In Deerfield, a portion of Route 5/10 was flooded in both directions, just south of Wapping Road.

Flood in HAMPDEN, MASSACHUSETTS
From 18-JUL-21 02:26:00 to 18-JUL-21 02:26:00 (EST-5)
Location: LUDLOW
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

In Ludlow, a portion of Center Street was flooded, just south of Rood Street.

Flood in WORCESTER, MASSACHUSETTS
From 18-JUL-21 03:18:00 to 18-JUL-21 03:18:00 (EST-5)
Location: WEST WARREN
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

In West Warren, a portion of Chapel Street was flooded and impassable.

Flood in WORCESTER, MASSACHUSETTS
From 18-JUL-21 03:46:00 to 18-JUL-21 03:46:00 (EST-5)
Location: (ORH)WORCESTER MUNI
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

In Leicester, Route 56 at Marshall Street was flooded, with debris in the roadway.  May be because of the Kettle Brook.

Flood in WORCESTER, MASSACHUSETTS
From 18-JUL-21 03:50:00 to 18-JUL-21 03:50:00 (EST-5)
Location: WESTWOOD HILLS
Flood cause: Heavy Rain
Property damage: 4.00K
Crop damage: 0.00K
Reported by: Amateur Radio

In Worcester, a basement was flooded 5 inches deep at 7 Cardinal Road.

Flood in HAMPSHIRE, MASSACHUSETTS
From 18-JUL-21 03:54:00 to 18-JUL-21 03:54:00 (EST-5)
Location: COLD SPG
Flood cause: Heavy Rain
Property damage: 4.00K
Crop damage: 0.00K
Reported by: Amateur Radio

In Belchertown, a basement was flooded at 507 Cold Spring Road.

Flood in WORCESTER, MASSACHUSETTS
From 18-JUL-21 03:58:00 to 18-JUL-21 03:58:00 (EST-5)
Location: PRATTS JCT
Flood cause: Heavy Rain
Property damage: 4.00K
Crop damage: 0.00K
Reported by: Amateur Radio

In Lancaster, there was a flooded basement at 2343 North Main Street.

Flood in WORCESTER, MASSACHUSETTS
From 18-JUL-21 04:10:00 to 18-JUL-21 04:10:00 (EST-5)
Location: WEST WARREN
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

In Warren, Ware Road at Main Street was flooded and impassable.  Probably had to do with the School Street Brook. Also the area around 1300 Main Street was flooded.

Thunderstorm Wind in WORCESTER, MASSACHUSETTS
From 17-JUL-21 16:15:00 to 17-JUL-21 16:15:00 (EST-5)
Location: CLINTON
Magnitude: 50.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Amateur Radio

In Clinton, trees and wires were down on a car on Parker Street.

Thunderstorm Wind in BRISTOL, MASSACHUSETTS
From 17-JUL-21 17:11:00 to 17-JUL-21 17:11:00 (EST-5)
Location: SEEKONK
Magnitude: 50.00 EG
Property damage: 0.50K
Crop damage: 0.00K
Reported by: Trained Spotter

In Seekonk, a tree was down on Arcade Avenue near Valley Street.

Flash Flood in HAMPSHIRE, MASSACHUSETTS
From 18-JUL-21 02:35:00 to 18-JUL-21 02:35:00 (EST-5)
Location: COLD SPG
Flood cause: Dam / Levee Break
Property damage: 20.00K
Crop damage: 0.00K
Reported by: Amateur Radio

In Belchertown a beaver dam broke, caused a road washout and homes between 421 and 461 East Street to become flooded. People were evacuated.  The report was confirmed by the Belchertown Fire Department.

Flash Flood in HAMPDEN, MASSACHUSETTS
From 18-JUL-21 04:02:00 to 18-JUL-21 04:02:00 (EST-5)
Location: NORTH CHESTER
Flood cause: Heavy Rain
Property damage: 7.00K
Crop damage: 0.00K
Reported by: Amateur Radio

In Chester, flash flooding caused a portion of Skyline Trail to be washed out.

Flash Flood in HAMPSHIRE, MASSACHUSETTS
From 18-JUL-21 04:33:00 to 18-JUL-21 05:54:00 (EST-5)
Location: BONDSVILLE
Flood cause: Heavy Rain
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Amateur Radio

In Belchertown, a portion of River Street, near the Swift River, was flooded and impassable, with people being evacuated.

Flood in NORFOLK, MASSACHUSETTS
From 18-JUL-21 04:10:00 to 18-JUL-21 04:10:00 (EST-5)
Location: BLACK ROCK
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

In Cohasset, a back yard was flooded, with waters approaching the garage, at 373 North Main Street.

Flash Flood in FRANKLIN, MASSACHUSETTS
From 18-JUL-21 08:18:00 to 18-JUL-21 09:02:00 (EST-5)
Location: MILLERS FALLS
Flood cause: Heavy Rain
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Amateur Radio

In the Millers Falls section of Montague, several streets were closed due to flooding.  Federal Street had 3 feet of water in the road.  Flood waters were entering a business.

Flash Flood in FRANKLIN, MASSACHUSETTS
From 18-JUL-21 20:42:00 to 18-JUL-21 21:19:00 (EST-5)
Location: MILL RIVER
Flood cause: Heavy Rain
Property damage: 7.00K
Crop damage: 0.00K
Reported by: Amateur Radio

In Deerfield, flash flood waters caused a portion of Conway Road to wash out.

Flood in FRANKLIN, MASSACHUSETTS
From 18-JUL-21 08:42:00 to 18-JUL-21 09:19:00 (EST-5)
Location: DEERFIELD
Flood cause: Heavy Rain
Property damage: 7.00K
Crop damage: 0.00K
Reported by: Amateur Radio

In Deerfield, a portion of Route 5 was closed due to flooding.  A car was stuck in flood waters on Wapping Road at Depot Road.

Thunderstorm Wind in WORCESTER, MASSACHUSETTS
From 17-JUL-21 16:13:00 to 17-JUL-21 16:15:00 (EST-5)
Location: CLINTON
Magnitude: 50.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Amateur Radio

In Clinton, power lines were down on California Court at Beacon Street. Also, power lines were down elsewhere on Beacon Street and on Route 110.  Trees and wires were down on a car on Parker Street.

Flood in FRANKLIN, MASSACHUSETTS
From 18-JUL-21 02:28:00 to 18-JUL-21 02:28:00 (EST-5)
Location: MILLERS FALLS
Flood cause: Heavy Rain
Property damage: 4.00K
Crop damage: 0.00K
Reported by: Amateur Radio

In Erving, there was a flooded basement at 21 Pleasant Street.

Flood in HAMPSHIRE, MASSACHUSETTS
From 18-JUL-21 05:43:00 to 18-JUL-21 06:43:00 (EST-5)
Location: BONDSVILLE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

In Belchertown, the area from 532 to 631 Franklin Street was flooded and impassable.