A flash flood watch was issued Wednesday morning for much of Eastern and Central Massachusetts, as storms are expected to hit the region later in the day.
So when will the rainstorms start? How bad will they be? What are forecasters projecting?
According to National Weather Service radar and forecasts, the storms are expected to move in Wednesday afternoon, and the evening commute could be affected. “Avoid flooded roadways and plan on extra travel time,” officials warned.
[Radar loop] Showers and embedded t-storms south of the coast will overspread eastern New Eng this afternoon. Locally heavy rainfall is likely with localized amounts up to 2 inches, focused across eastern MA and RI. More heavy rain tonight. pic.twitter.com/9mqKPa9hVL— NWS Boston (@NWSBoston) August 28, 2019
“Bands of showers with torrential rainfall will overspread the area this afternoon and continue through tonight,” forecasters wrote.
Earlier in the day, forecasters predicted that the storms would move in to the Boston area around 3 or 4 p.m.
Meanwhile, meteorologist Dave Epstein predicted the storm would hit in the early afternoon.
WBZ’z Terry Eliasen warned that rain would be falling during the evening commute, telling readers that it would be a “wet ride home” tonight.
The rain is expected to continue throughout the evening. NBC 10’s Pete Bouchard noted that the area was going to get “hosed” overnight, with “periodic intense downpours into the wee hours.”
Regarding flood potential overnight: we are going to get HOSED. Periodic intense downpours into the wee hours. Available water vapor is off the charts. We likely are hooked into an atmospheric river which ups the ante for flooding. pic.twitter.com/jrJs57mQtv— Pete Bouchard NBC10 Boston (@PeteNBCBoston) August 28, 2019
The flash flood watch is in effect for all of Eastern Massachusetts and Rhode Island, as well as the Worcester area, through late Wednesday night.
Flash Flood Watch continues for #RI & central/eastern #MA through tonight. Bands of rainfall of 2-4", locally as much as 5" in a few spots. Some areas will see less.— NWS Boston (@NWSBoston) August 28, 2019
* Urban areas may see significant flooding
* Small streams may flood
Safety info: https://t.co/BL3tlWmvV4 pic.twitter.com/RyTg52StJ0
NWS forecasters noted that rainfall will vary from location to location, but the heaviest rain is expected to hit Rhode Island and Eastern Massachusetts — which means those areas hold the greatest risk for localized flash flooding.
Forecasters also said that Eastern Massachusetts — particularly the area south of Boston — is expected to see the most precipitation totals.
According to Eliasen, the amount of rain could total more than 2.5 inches in eastern parts of the state, including in Boston.
Meanwhile, WBZ meteorologist Eric Fisher noted that some areas could get more than 3 inches.
As far as temperatures go, the Boston area is expected to reach around 75 degrees before dipping when the storms arrive, according to Boston 25’s Shiri Spear.
The rain is part of the Tropical Storm Erin system, which is passing offshore this week, according to NWS forecasters.
“The expected impact to southern New England remains the same: locally heavy rainfall with potential for some urban flooding late Wednesday/Wednesday night,” forecasters wrote on Twitter Tuesday night.
A fascinating & meteorologically breathtaking satellite image of the East Coast right now: approaching cold front from the west, swirling center of Erin off Carolinas, her thunderstorms sheared off to the south and the leading edge of her tropical envelope of air blooming north. pic.twitter.com/jQLQZdWZqQ— Matt Noyes NBC10 Boston & NECN (@MattNBCBoston) August 28, 2019