Jul 19, 2019
A shortwave trough crossed the Great Lakes on July 19th and then dove southward on the eastern flank of an upper ridge. The atmosphere was sufficiently unstable to allow isolated strong storms to develop. High moisture levels, with dewpoints in the 70s, also created an environment capable of producing heavy rainfall.
Source: NOAA National Weather Service Storm Events Database (event 845101). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in Clarion County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.