Aug 4, 2017
A line of pre-frontal convection developed well ahead of an approaching cold front in a moderate CAPE and moderate shear environment over central Pennsylvania during the afternoon of August 4, 2017. This line of storms produced numerous reports of wind damage, and a brief EF1 tornado formed with a cell on the southern portion of this line in Fulton County, PA. Heavy rainfall also accompanied the storms. Flash flooding occurred across Cumberland County on the evening of the 4th.
Source: NOAA National Weather Service Storm Events Database (event 713988). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in Cumberland County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.