The Brief Severe thunderstorms hammered White County on Tuesday night, triggering a tornado warning and knocking out power to nearly 1,000 customers. A fierce severe thunderstorm system pounded White County on Tuesday night, packing high winds that knocked out power, brought down trees across five major roads and triggered an emergency tornado warning. What we know:The storm system slammed into White County late Tuesday night, prompting the National Weather Service to issue a tornado warning at 8:38 p.m. due to radar-indicated rotation. Habersham Electric Membership Corporation reported 904 customers without power in White County, while Georgia Power reported 94 outages. Emergency crews have closed five local roads due to fallen trees:Rabun Road near Bean Creek RoadPoplar Stump Road near Myra Branch RoadChimney Mountain Road near 199 Chimney Mountain RoadMauldin Road near 767 Mauldin RoadClaude Sims Road at Shepherd DriveWhat we don't know:Local power companies have not provided a specific timeline for when electricity will be fully restored to all affected residents.