A jurisdiction has high tornado risk if it is located in an area where the shelter design wind speed for tornadoes is 250 MPH in accordance with Figure 304.2(1) of ICC 500®.
High Tornado Risk
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A jurisdiction has high tornado risk if it is located in an area where the shelter design wind speed for tornadoes is 250 MPH in accordance with Figure 304.2(1) of ICC 500®.