Governor Phil Murphy declared a State of Emergency in New Jersey amid flash flooding. A flood warning was also issued in the Philly area until 11:45 p.m. Monday.

Dozens of flash flood warnings are in effect for millions across several states and major cities in the Northeast, as slow-moving summer storms impact the East Coast Monday evening.

NJ flash floods Monday, theories emerged blaming cloud seeding for the heavy rainfall that left key areas severely inundated.