Montco Flood Report: Schuylkill River, Perkiomen Creek Rise After Storm

MONTGOMERY COUNTY, PA — Heavy rain overnight Sunday into early Monday left many roads throughout the region flooded, leading to traffic concerns, minor damages, and power outages across Montgomery County.

Between 1 and 2 inches had fallen before midnight, and some areas experienced more than 2 inches all told, the National Weather Service said.

Several sections of the Schuylkill Expressway were impacted by the storm, including the stretch between Gulph Mills and King of Prussia in Montgomery County. The Schuylkill itself approached the minor flood stage, peaking at 12.5 feet in Norristown late Monday morning and 9.3 feet in Philadelphia.

Flooding was perhaps most severe at Wissahickon Creek in Fort Washington, which briefly surged to nearly 9.06 feet at 2:45 a.m. Monday, well over its baseline of about 3 feet, according to the U.S. Geological Survey. Fortunately, damage was minimal, local officials reported.

The Perkiomen Creek, meanwhile, reached flood stage in East Greenville, according to the National Weather Service's Advanced Hydrologic Prediction Service. The water peaked at about 5.46 feet at about midnight, considering "minor" flooding, before retreating to the "action" level of 4.0 feet by late Monday morning.

Action indicates that surface water is over the top of its banks, but no man-made structures are damaged and flooding is limited to "small areas of parkland or marshland," according to NWS.

While the water was higher at Graterford, at 8.9 feet, that was considered action level as well, short of the 11 foot mark indicating minor flooding.

A flood warning for the county had been issued just after 1 a.m. and was in place until 7:15 a.m.

No major roadways remained impacted by late Monday morning.

Hundreds lost power during the storm, but most had their power restored by the morning, according to PECO.