Those appear to have been the only deaths during Saturday's storms, the National Weather Service reported, although other tornadoes struck the area. The fatalities were on Highway 61 in a rural area near St. Mary and about 80 miles south of St. Louis.
In Missouri and southern Illinois, the NWS said, tornadoes cut a swathe of destruction 20 miles long.
In south-central Illinois, a couple was stranded after flood waters swept their car into a field near Mount Vernon, WJBD-AM reported. They were rescued by boat. One person who tried to reach them ended up stuck on the roof of their car.