Flash flood warnings and watches stretched across parts of New York, New Jersey, Maryland and Pennsylvania, as severe thunderstorms brought heavy rain. Here's the latest.

With rainfall rates that prolific, the threat of flash flooding is highly imminent. The flooding may prove to be locally severe, causing travel disruptions, property damage and the need for water rescues.

Thousands in the Baltimore area are without power after severe storms swept through the region Thursday evening, prompting a flash flood warning from the National Weather Service. According to Baltimore Gas and Electric,