The Storm Prediction Center just sent out a new mesoscale discussion concerning the Tornado Watch in effect until 3:00am CT for southeast Missouri, southern Illinois, western Kentucky, northwest Tennessee, and northeast Arkansas.
In the discussion the forecasters are stating that a threat for isolated tornadoes and damaging wind will continue for another 2-3 hours. Heavy rain will also be likely across the area.
Also in the discussion they point out the fact there is much more instability over central and southern Arkansas. That is the area that could really pop. However, there aren't any thunderstorms down there right now and there isn't much of a trigger to fire the storms. The current storms are firing just ahead of a cold front and along a warm front.
At 10:38pm CT, the Poplar Bluff, Missouri airport reported a wind gust near 40mph. The strong wind gust occurred approximate 15 minutes ahead of the actual line of thunderstorms. Keep that in mind tonight as you are looking at the radar. Some of the wind gusts are out ahead of the line.