Zahner Conservation Lecture Series Understanding Helene as a Geologic Event in Southern Appalachia…and What is a “Geologic Event” Anyway?
Philip S. Prince, Ph.D., Project Geologist, Appalachian Landslide Consultants, PLLC, Virginia Tech Department of Geosciences
Helene’s impacts on rivers and slopes in the southern Appalachians exceeded all recorded storms, establishing a new benchmark for flooding and landsliding from Haywood County to southwest Virginia. The storm’s severity resulted from a specific combination of weather movement and the unique southern Appalachian topography, whose southeast-facing slopes are perfectly oriented to focus impacts of weather systems from the Gulf. This talk will place the Helene event in a geologic and topographic context, focusing on what the storm actually did to the landscape and river channels from the perspective of fieldwork and remote sensing. LiDAR imagery and the results of past storms will shed some light on just how long the scars of Helene may last and offer some insight into just how important similar storms may have been in shaping the mountains into what we see today.
Sponsored by Ruthie & Berry Edwards.