With downpours predicted Tuesday, several Mass. counties under flood watch

Flash flooding could impact parts of south central and southeastern Massachusetts, Connecticut, and Rhode Island, Boston meteorologists warned Tuesday.

Norfolk, Suffolk, Bristol, Hampden, Plymouth, and Barnstable counties, as well as parts of southern Worcester County, will be under a flood watch from about 2 pm. on Tuesday to 2 a.m. on Wednesday, according to the National Weather Service.

“Numerous showers and thunderstorms will develop late this afternoon and persist into part of the evening,” the agency’s Boston/Norton branch shared in a weather alert around 2:30 a.m.

“The strongest storms will be capable of producing torrential rainfall in a very short period of time,” NWS noted. “The potential exists for some locales to receive 1″ to 2″ of rain in an hour. This will result in the potential for localized flash flooding, particularly if this were to occur over a vulnerable urban center.”

Check out more of what local meteorologists are saying:

National Weather Service: ‘Not everyone will see storms, but any that form may drop 1-2 in/hour’

A Flood Watch is in effect for portions of S. New England where there is the greatest likelihood that t-storms may lead to localized flash flooding Tue afternoon and Tue night, especially over urban areas. Not everyone will see storms, but any that form may drop 1-2 in/hour. pic.twitter.com/twefDxxDsa

— NWS Boston (@NWSBoston) July 8, 2025

Thunderstorms could produce heavy rainfall on Tuesday at the rate of 1-2″ an hour, which may lead to isolated flash flooding during the afternoon and evening #MAwx #CTwx #RIwx pic.twitter.com/SP2fS2nHtd

— NWS Boston (@NWSBoston) July 7, 2025

Heat Advisory remains in effect Tuesday for much of southern New England, excluding the Berkshires and islands. Heat index values could reach 95–100°F. Stay cool and hydrated. #MAwx #RIwx #CTwx pic.twitter.com/vwb6PjoSSJ

— NWS Boston (@NWSBoston) July 7, 2025

Cindy Fitzgibbon, WCVB: ‘Rainfall rates of 1-2″/hr possible’

Good Tuesday morning! The remnants of ‘Chantal’ are passing just SE of Nantucket early this morning with a few showers for the Cape/Islands. A bigger concern for downpours & storms to develop today that could cause localized flash flooding in the tropical air. Forecast on #WCVB pic.twitter.com/3T6sALGOSc

— Cindy Fitzgibbon (@Met_CindyFitz) July 8, 2025

FLOOD WATCH…
from 2pm into tonight for areas along and south of the MA pike. This is where we have the best chance of tropical downpours setting up and leading to localized flash flooding. Rainfall rates of 1-2″/hr possible. #WCVB pic.twitter.com/69QYK0aHXT

— Cindy Fitzgibbon (@Met_CindyFitz) July 8, 2025

TUESDAY…
Around 90° with high humidity Hit or miss PM storms and tropical downpours could put down a lot of water in a short period of time. Flood watch south of MA pike for localized flash flood potential 2pm-tonight #WCVB pic.twitter.com/R3o4q4E1fq

— Cindy Fitzgibbon (@Met_CindyFitz) July 8, 2025

FLASH FLOOD RISK…
This afternoon-evening as tropical air interacts with a front. Not everyone will see storms and downpours- but where you do, rainfall rates could reach 1-2″/hr and lead to localized flash flooding. Greatest risk is near and south of MA pike #WCVB pic.twitter.com/yGLf9hL3jN

— Cindy Fitzgibbon (@Met_CindyFitz) July 8, 2025

NEXT 7 DAYS…
One more day around 90 and then it cools down. Tropical downpours and storms this afternoon could lead to localized flash flooding mainly south of MA pike. Still a few showers around at times thru the end of the week but we should dry out this weekend. #WCVB pic.twitter.com/hpL92sNAja

— Cindy Fitzgibbon (@Met_CindyFitz) July 8, 2025

Chris Lambert, 7News: ‘Atmosphere has a ton of water vapor to it today to fuel scattered tropical downpours’

Heat advisory up, flood watch too for some. pic.twitter.com/DrmFCCKPod

— Chris Lambert (@clamberton7) July 8, 2025

Scattered mid to late afternoon storms develop. Tropical downpours and strong wind gusts the main risks. pic.twitter.com/np7AwS9dDz

— Chris Lambert (@clamberton7) July 8, 2025

Atmosphere has a ton of water vapor to it today to fuel scattered tropical downpours. Flood watch up for parts of Southern New England. pic.twitter.com/Jj7I0YQeMu

— Chris Lambert (@clamberton7) July 8, 2025

Few scattered showers/storm tomorrow. Not nearly as hot. Low to mid 70s coast, low 80s inland. pic.twitter.com/AO8suFjvFk

— Chris Lambert (@clamberton7) July 8, 2025

Shiri Spear, Boston 25: ‘Stay alert for localized flooding in southern #NewEngland’

Scattered PM storms will NOT impact all towns, but will be high impact where they do pop. Stay alert for localized flooding in southern #NewEngland #Boston #mawx @boston25 pic.twitter.com/Qv3ndHsX8N

— Shiri Spear (@ShiriSpear) July 8, 2025

1DegreeOutside: ‘The humidity is going to breed afternoon and evening storms’

Mornin’ friends! Stalling front triggers downpours & thunder today. Where & when the risk for localized flooding is highest. Watch Tuesday Noyes’ Notes: https://t.co/vuQHZOn05Z pic.twitter.com/n9UaH4Ylxl

— 1DegreeOutside (@1DegreeOutside) July 8, 2025

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