Liberty Mutual plans to begin using drones to survey damage later this year.
The twisters were reported in Callaway County, St. Charles County, and Pike County.
Another day of warmth Thursday, mixed in with humidity, instability, an approaching front and the jet stream, would contribute to steadily worsening weather. “By Thursday, it looks like all those ingredients come together. … You can really blow up some big storms.”
Hundreds of residents have sustained damage from Tuesday morning storms that swept through the St. Louis area.
A cold front approaching Oklahoma, Arkansas and Missouri is expected to bring hail, strong winds and the possibility of tornadoes to the region less than a week after meteorologists reported no tornadoes in the United States thus far in March.
Tornadoes, heavy downpours and baseball sized hail could be headed our way, expected to roll in between 6 and 8 p.m.
Gov. Jay Nixon today declared a state of emergency in Missouri in response to severe weather including heavy rain, hail, high winds, flooding and a tornado in University City.
A storm system that buried parts of Wyoming and South Dakota in heavy, wet snow on Friday also brought powerful thunderstorms packing tornadoes to the Great Plains.
Springfield, Mo., experienced heavy rain and hail on Saturday that caused some flash flooding.
Forecasters are calling for storms throughout the day involving hail, high winds and possibly tornadoes.