Severe thunderstorms across Maryland on Thursday brought torrential rainfall reaching up to 6 inches in some areas, causing thousands to lose power and requiring several water rescues in Harford County after multiple cars were trapped by rising water.

MOUNT AIRY, Md. (AP) — A 13-year-old boy died after he was trapped in a storm drain in Maryland during heavy rainfall and flooding on the East Coast that also led to rescues from cars that were submerged in floodwaters, officials said.