Thunderstorm Wind in Danville (c) County, Virginia

Thunderstorm winds blew a couple of trees down within the City of Danville. A tree fell on a powerline on Tunstall Road with another tree down in an unspecified portion of Danville. A powerline was damaged by a thunderstorm wind gust on Main Street. Damage values are estimated.

Showers and thunderstorms developed across the northwest central Virginia to the south of a stationary front draped across northern Virginia into central West Virginia. By early afternoon, a surface trough had developed along the lee side of the Blue Ridge Mountains, providing the lower atmospheric convergence needed to aid in thunderstorm development. Surface-based CAPE values were estimated to be in the 1,500 to 2,000 J/Kg range by noon just east of the Blue Ridge, while precipitable water values had risen into the 1.7 inch to 1.8 inch range, both of which supported heavy downpours and wet microbursts. A couple of the storms increased to severe levels and produced damaging winds which downed trees.