Regardless, in my experience, if these events were an issue the insurance underwriters would be the first to drive such mitigative requirements like they do for structures in hurricane or flooding prone areas.
See Chock Pullers link above - tornadoes clearly are a bigger issue than many realise.
Performance Against Debris and Wind Loads
To simulate the wind speeds up to 250 MPH present in tornadoes, the Wind Engineering Research Center at Texas Tech University was the first to design an air cannon that could shoot 2x4s and other objects to duplicate flying debris conditions during high winds and tornadoes. Debris flying at over 100 MPH passed right through a standard wood framed wall leaving inhabitants at risk, while an ICF wall with 2 1/2” of Expanded Polystyrene (EPS) foam on each side of the concrete, was not damaged2.
The strength of a tornado in the United States is estimated using the Enhanced Fujita Scale (EF Scale). The scale has six categories from zero (EF-0) to five (EF-5) representing increasing degrees of damage.
An ICF wall can offer a wind resistance of 250 MPH which is equal to an EF-5 tornado. The strength is based on the wall’s composition of steel reinforcement and concrete. In addition, ICF walls are resistant to the water-damage often associated with tornadoes, hurricanes and other storms.
https://alleguard.com/insights/torna...ncrete%20core.