Samantha-Rae Tuthill, AccuWeather.com Staff Writer

Heavy rainfall led to major flooding destruction across the East on June 27.
AccuWeather Expert Forensic Meteorologist Steve Wistar, who has been tracking rainfall amounts in Lemont, Pa., for the past 23 years, recorded 3.53 inches of rain Thursday evening, the most he has ever seen from a non-tropical system in that area.
Some of the heaviest rain was focused along the I-80 corridor across Pennsylvania, dropping over 4 inches in just a few short hours in some locations.
Roads were closed across the mid-Atlantic, and a washed-out bridge in Sykesville, Pa., was reported by an emergency manager.
On Thursday afternoon, a tornado spawned from a series of thunderstorms in Boalsburg, Pa., near State College. The NWS classified this tornado as an EF-1, as it touched down on an area farm.
As of Friday midday, water rescues were still being reported out of New York and surrounding states by local law enforcement and emergency managers.
Related:
Strong Storms from Boston to Raleigh Friday
Reports, Photos: Heavy Flooding in the East
East US Poised for Flooding Into July
Additional rounds of torrential downpours and incidents of flash and urban flooding will affect the Appalachians, while expanding to the Atlantic coast Friday, this weekend and into Independence Day.

http://www.accuweather.com/en/features/trend/photos_flooding_inundates_the/14736538