Thursday's rain was a highly localized event. The highest impact was only felt over a 5-to-10 mile area south of Boston.

A "considerable" flash flood warning was issued in Boston on Thursday morning as heavy rain pounded the city and areas to the south. Four to 6 inches of rain fell in the towns of Canton, Quincy and North Scituate. Rainfall rates reached up to 2 inches per hour.

Communities south of Boston have seen as much as 4 and a half inches of rain, with a flash flood warning still in effect.