Thunderstorm Wind — Jasper, South Carolina

2023-06-14 · near Hardeeville, Jasper, South Carolina

Event narrative

The media reported power lines down across Interstate 95 in Hardeeville. Both southbound and northbound lanes were closed near Exit 5.

Wider weather episode

A strong mid-level shortwave rounding the base of a parent low centered across the Great Lakes region encountered an environment displaying a warm and moist airmass, leading to thunderstorm development across the Southeast United States. Thunderstorms congealed into clusters with bowing segments, eventually sweeping through the region within an environment displaying unusually strong mid-level flow, moderate to high levels of instability, strong downdraft convective available potential energy (DCAPE) and low-level backing winds supporting high levels of 0-3 KM storm relative helicity. Severe thunderstorms developed as a result, producing straight-line wind damage across far southern portions of southeast South Carolina during early evening hours.

View location on OpenStreetMap → (32.2700, -81.0800)

Source: NOAA Storm Events Database, event_id 1112796. Narrative written by the NWS forecast office that issued the report.