May 4, 2021
A warm front lifted north into Pennsylvania during the day and became stalled during the early evening across the northeastern part of the Commonwealth. Thunderstorms became aligned along the Wyoming Valley, and extended off to the east into the Lackawaxen Valley during the evening. Rainfall amounts between 2 to 3 inches fell in a very short amount of time over urban and moderately populated rural areas leading to several road closures, overtopped bridges and small stream flash flooding.
Source: NOAA National Weather Service Storm Events Database (event 960172). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in Lackawanna County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.