A Severe Thunderstorm Warning has been issued for the following counties in Missouri: Grundy, Harrison and Sullivan until 5:30 PM and the following counties in Missouri: Grundy, Harrison and Mercer until 5:45 PM. A Tornado Watch has been issued for the following counties in Missouri: Caldwell, Daviess, Grundy, Harrison, Linn, Livingston, Macon, Mercer and Sullivan until 11:00 PM.