Update, 1:45am: It appears the storms are either dying down or moving out of the tri-state. There are no reports of injuries or serious damage.
Update, 1:30am: The active warnings at this time are tornado warnings for Hopkins and Muhlenberg Counties, and a severe thunderstorm warning for Ohio County.
Update, 1:09am: There are tornado warnings for Hopkins and Calhoun Counties. The storms producing these warnings are moving east at 55mph.
Update, 12:35am Sun: There is a tornado warning for Webster County. Doppler radar indicates a tornado about six miles west of Providence.
The National Weather Service has issued a tornado watch until 2am CDT Sunday for most of the tri-state.
At 11pm, a line of strong storms is forming ahead of a cold front in Missouri and Illinois.
Tune to Newswatch and come back to this site in the event of severe weather for complete coverage.