New Orleans and the surrounding area were placed under a flood advisory Monday afternoon by the National Weather Service as the region dealt with heavy rain that left thousands without power. 6,958 customers were without power in New Orleans, according to Entergy's outage map. The outages were largely in the Uptown/Carrollton areas.

A Flash Flood Watch was issued for much of the NYC area on Monday amid the threat of heavy afternoon and evening thunderstorms ahead of a potential heat wave later this week.

A flood watch was in effect for more than a dozen counties as authorities resumed the search for victims of the July 4 tragedy.