Chopper 6 was overhead as hotel guests at the Residence Inn Marriott were rescued from the floodwaters. The raging waters were spawned by the overflowing Schuylkill River.
The severe weather moved into the region Wednesday evening leading to 16 tornado warnings. At least seven tornadoes have been confirmed in the area.
Confirmed tornado causes damage in Mullica Hill, NJ
High winds also brought down trees in Montgomery County, Pennsylvania. A woman was killed in Upper Dublin Township when a tree fell onto a home, authorities said. The storm killed two others in Montgomery County and a man in Bucks County.
New Jersey Gov. Phil Murphy says his state's death toll from the remnants of Hurricane Ida has risen to at least 23.
Murphy spoke as his states and others in the U.S. Northeast reckoned Thursday with flooding, tornado damage, and continuing calls for rescue after the storm took residents and officials by surprise.
Woman killed after severe storms hit Upper Dublin Township, Pa.
Flooding resulted in major closures across the region Thursday including on the Vine Street Expressway, the Schuylkill Expressway, Kelly Drive in Philadelphia and Route 1 in Mercer County, New Jersey. Evacuations were ordered in Trenton due to concerns that the Delaware River would flood homes.
Heavy rains cause significant flooding in Conshohocken
The Associated Press contributed to this report.