Flash Flood — Mercer, West Virginia

2025-07-30 · near Hales Gap, Mercer, West Virginia

Event narrative

Adairs Run has overflowed its banks and flooded the bridge on Adairs Run Road. No damage was reported to the bridge, which was reopened to traffic after the flooding receded.

Wider weather episode

A slow-moving and localized thunderstorm produced between 3 and 3.5 inches or rain during 90-minutes across the Adair Run basin. Rainfall rates were estimated by radar to be up to 4 inches per hour at times. CREST Unit streamflow was estimated to be as high as 450 cfs per mi^2, while the 3-hour ARI reached as high as a 200-year event by 8:45 pm EDT.

View location on OpenStreetMap → (37.3651, -80.8897)

Source: NOAA Storm Events Database, event_id 1293284. Narrative written by the NWS forecast office that issued the report.