The National Weather Service in Morristown has issued a severe thunderstorm warning for several counties in East Tennessee, including Anderson, Morgan, and Roane counties.
The warning remains in effect until 6:45 p.m. The storms are capable of producing quarter size hail and destructive winds with speeds that could exceed 70 mph.
Parts of Oak Ridge lost power Thursday evening, including an area around Oak Ridge Turnpike and Robertsville Road.
The National Weather Service said thunderstorms moving south from the Ohio River Valley this afternoon could produce damaging winds, heavy rainfall, and frequent lightning.
A severe thunderstorm watch remains in effect until 11 p.m. for southwest North Carolina and East Tennessee.