A Severe Thunderstorm Warning has been issued for the following counties in Missouri: Caldwell and Daviess until 5:00 PM and the following counties in Missouri: Daviess, Grundy, Harrison and Mercer until 5:15 PM and the following counties in Missouri: Caldwell, Carroll, Daviess and Livingston until 5:30 PM. A Tornado Watch has been issued for the following counties in Missouri: Caldwell, Carroll, Chariton, Daviess, Grundy, Harrison, Linn, Livingston, Macon, Mercer and Sullivan until 9:00 PM.