CNNBy Meteorologist Briana Waxman(CNN) — A serious flash flood threat is shifting into New England on Wednesday as an unusually strong summer storm unleashes another day of torrential rain across the Northeast, where heavy rain has already triggered water rescues and widespread travel impacts. The greatest danger is centered on western and central Massachusetts, far southern Vermont and portions of northern Connecticut, where a Level 3 of 4 risk of flooding rain is in place. ⛈️ Get your forecast in the CNN Weather appAnother 2 to 4 inches of rain is expected across much of southern New England, with locally higher totals. The storm is creeping northeast after soaking parts of New York, New Jersey and Pennsylvania. Higher totals were observed in spots, including Stewartsville in western New Jersey, which received 6 inches of rain.