Thunderstorm Wind — Loudoun, Virginia

2011-07-03 · near Leesburg, Loudoun, Virginia

Event narrative

A fatality occurred when a tree fell onto a cyclist along the C and O Canal Towpath. The location along the Towpath was south of Whites Ferry along mile marker 33.

Wider weather episode

A cold front passed through the area during the 3rd. A southerly flow ahead of the front caused enough warm and moist air for moderate instability to develop. The combination of lift associated with the front and instability triggered showers and thunderstorms. Some thunderstorms became severe with damaging winds and large hail.

View location on OpenStreetMap → (39.1081, -77.4924)

Source: NOAA Storm Events Database, event_id 334153. Narrative written by the NWS forecast office that issued the report.