Flood Watch, Severe Storms Amid Tropical Heat Across MA

MASSACHUSETTS — Another day of stifling heat and humidity will bring an increased chance of severe storms to Massachusetts on Tuesday with a Heat Advisory and Flood Watch in effect for parts of the state.

Tuesday will complete the latest heat wave — three days in a row with temperatures 90 degrees or above — for much of the state with the NWS forecasting a high of 92 degrees.

With dew points in the 70s, that translates to a heat index of 100 degrees or higher.

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The NWS on Tuesday was calling for a chance of showers before 2 p.m. and the likelihood of thunderstorms after 2 p.m. Some of these storms could be severe and cause damage in areas where they develop and are slow-moving.

The Flood Watch was in effect for Connecticut, Rhode Island and portions of southeastern and south central Massachusetts from 2 p.m. on Tuesday to 2 a.m. on Wednesday.

"Numerous showers and thunderstorms will develop late this afternoon and persist into part of the evening," the NWS said. "The strongest storms will be capable of producing torrential rainfall in a very short period of time.

"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."

The High Heat Advisory was to be in effect until 8 p.m. on Tuesday.

"Hot temperatures and high humidity may cause heat illnesses," the NWS said. "Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors."

Wednesday will be a cooler and unsettled day with lingering showers, humidity and the chance of thunderstorms. The high temperature is forecast at 76 degrees.

It will be a similar story on Thursday and Friday before it turns warmer and sunnier over the weekend with highs in the 80s on Saturday and Sunday.

(Scott Souza is a Patch field editor covering Beverly, Danvers, Marblehead, Peabody, Salem and Swampscott. He can be reached at Scott.Souza@Patch.com. X/Twitter: @Scott_Souza.)