National Weather Service United States Department of Commerce

Arctic Air for the Northeast and Mid-Atlantic; Increase Moisture for Pacific Northwest; Active Pattern for Hawaii

An arctic cold front will impact the Great Lakes, Northeast and mid-Atlantic. Snow showers and squalls will accompany this system with increasing winds and falling temperatures. Damaging wind gusts may result in tree damage and power outages. Meanwhile, moisture returns for the Pacific Northwest and Hawaii this weekend with both coverage and intensity of rainfall and higher elevation snows. Read More >

Overview

A complex weather system set up as an area of low pressure pushed across the Tennessee Valley on Saturday, May 5, 2018. Initially, a few supercell-like thunderstorms produced large hail due to their rotation and stronger updrafts near the Virginia border. A bowing line of storms then brought damaging wind gusts into the Lake Cumberland region later in the afternoon. There were multiple reports of large hail in some of the stronger storms in southeast Kentucky, with the largest hail occurring in Harlan County near Loyall.

Image
2.5 inch hail seen NW of Loyall
(Courtesy of Tammy Hyatt from Andrew Dockery WYMT Facebook).