The National Weather Service urged drivers to “turn around, don’t drown when encountering flooded roads” as flash flooding fueled by overnight rains crippled the Thursday morning

A flash flood warning is in effect until 9 a.m. for Boston and several communities south of the city, including Brockton, Quincy, and Randolph, officials said Thursday morning. The National Weather Service also issued a flood watch that will remain in effect until 4 p.m. for Rhode Island and eastern portions of Massachusetts and Connecticut.

The WBZ Weather Team is highlighting Thursday as a NEXT Weather Alert Day, as heavy rain in the forecast poses a flooding risk for the Boston area. After an active overnight with some areas receiving upwards of 2" of rainfall, we are once again, tracking another round of torrential downpours.

Slow moving thunderstorms and downpours will be around through the overnight. While the threat for localized flooding exists, the storms will not be widespread. Lightning is always dangerous, so make sure you are inside if you are hearing thunder.

Boston faces high heat with a heat advisory, as temperatures near 90 degrees; cooler weather expected later in the week.

There's a heat advisory in Massachusetts and remnants from Chantal could influence storms on Tuesday around Boston.

Rain began falling hard during the top of the second inning of the series finale between Boston and Washington, prompting a sudden delay. The tarp wasp laced on the infield as fans ran for cover. It’s unclear when the sides will resume play.