Jul 16, 2021
Scattered showers and thunderstorms developed during the afternoon and early evening of July 16, 2021, in a very warm, humid airmass just south of a stalled frontal boundary that was draped across northern Pennsylvania. A few of these storms produced wind damage, including a particularly tall cell that produced winds estimated by a NWS Survey Team to be 85 to 95 mph in a wet microburst near Haneyville in northern Clinton County. Flash flooding from heavy rains also occurred in Northumberland and
Source: NOAA National Weather Service Storm Events Database (event 971589). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in Northumberland County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.