
South Dakota County Among Nation’s Most Vulnerable For Tornado Damage 2024
Tornado Alley is a region in the central United States known for its high frequency of tornadoes. There is no official area designated but it primarily encompasses parts of Texas, Oklahoma, Kansas, and Nebraska.
However, some definitions are expanding the area to include portions of Iowa, Minnesota, and even parts of the Dakotas.
The unique geography—where warm, moist air from the Gulf of Mexico collides with cool, dry air from Canada—creates the perfect conditions for severe thunderstorms and tornadoes, especially in spring and early summer.
While tornadoes can occur anywhere in the U.S., Tornado Alley experiences the most violent and frequent twisters, making it a focal point for storm chasers and meteorological research.
According to the National Oceanic and Atmospheric Administration (NOAA), South Dakota has had a total of 1911 tornadoes from 1950 through 2023. The average number of tornadoes South Dakota has in a year is 36.
Roof Gnome (a national roofing repair company) used FEMA (Federal Emergency Management Agency) statistics to rank almost 950 counties in the U.S. in terms of tornado vulnerability.
They specifically looked at tornado risk and expected annual loss from tornadoes. The average age of homes in the counties examined played a huge role in the rank they received.
Minnehaha County showed up in 51st place in this particular study. The average age of homes in this area was determined to be 43.2 years old. The study indicates that many homes may not be updated to a certain construction standard. Therefore damage totals could be high.
These statistics put Minnehaha County in the vulnerable category with a a total projected annual loss from tornadoes of around $32 million for this year.
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You can see this complete and interesting study at Roof Gnome along with an interactive map with the most vulnerable counties in Minnesota and Iowa, too.
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