Apr 11, 2024
A strong mid-level trough and an associated frontal zone crossed through the|Mid-South and took aim on the OH Valley. Strong forcing associated the energy aloft coupled with a gradually destabilizing boundary layer out ahead it set the stage for areas of locally heavy showers and thunderstorms for several hours and prompted dangerous flash flooding. A flash flood emergency was issued for portions of Allegheny County when 4 to 5 inches of rain fell on the community of Oakdale, PA in less than 6 h
Source: NOAA National Weather Service Storm Events Database (event 1179285). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in Armstrong County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.