A Severe Thunderstorm Warning has been issued for the following counties in Missouri: Caldwell, Carroll, Daviess, Linn and Livingston until 6:45 PM and the following counties in Missouri: Carroll, Chariton, Harrison, Linn, Livingston and Mercer until 7:00 PM. A Tornado Watch has been issued for the following counties in Missouri: Carroll, Chariton, Grundy, Linn, Livingston, Macon, Mercer and Sullivan until 9:00 PM.