The severe storms caused widespread damage, including flooding, downed trees, and structural destruction. In Dover, Delaware, a confirmed tornado led to significant damage and a state of emergency. Flash flooding disrupted transportation in New York City and Philadelphia, inundating roadways and subway stations. Nassau County, New York, reported injuries and property damage from a possible tornado. Pennsylvania experienced tornado-related destruction in York and Lancaster counties. Flight cancellations and delays added to the disruption. (Source: Yahoo News)