National Weather Service United States Department of Commerce


Just one day after a derecho brought widespread wind damage to Middle Tennessee, another complex of severe thunderstorms called a MCS (Mesoscale Convective System) developed across western Tennessee in the afternoon hours on May 4 then moved across southern Middle Tennessee during the evening hours. These storms once again produced widespread straight-line wind damage across Perry, Lewis, Wayne, Lawrence, and Giles Counties, and also dropped very large hail up to lime size in parts of Wayne County. Behind these storms, an uncommon feature called a "wake low" formed on the back edge of the rain across the Nashville metro area and surrounding counties, producing strong southeast winds of 40 to 60 mph for a few hours late in the evening. These winds, although well north of the severe thunderstorms along the Alabama border, nevertheless caused additional widespread wind damage from Lewis County northeastward to Wilson County.

SPC reports
Storm Prediction Center reports for May 4, 2020

nws logo Media use of NWS Web News Stories is encouraged!
Please acknowledge the NWS as the source of any news information accessed from this site.
nws logo