Jul 11, 2021
Widely scattered thunderstorms developed during the afternoon and evening of July 11th. A few of the storms proved capable of producing sporadic damaging winds and locally heavy rainfall, supported by strong instability with CAPE values reaching as high as 2,000 J/Kg across the mountains by late afternoon. Precipitable water values at 1.5 inches, was an indication of a moist enough atmosphere to support heavy rain. The stronger storms were observed producing rainfall amounts as high as 5 inch
Source: NOAA National Weather Service Storm Events Database (event 971278). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in Smyth County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.