Potter County, SD Tornado Risk & Storm Shelter Cost
Potter County's tornado history, by the numbers
Since 1955, NOAA has logged 20 tornado tracks crossing Potter County - one about every 3.8 years, which lands it in our Moderate band. Nationally, Potter County ranks at the 50th percentile for tornado frequency. Among 66 South Dakota counties in this dataset, Potter County ranks 54 for how often a tornado touches down.
Potter County's EF4-5 history
Potter County's record has no EF4-5 tornado - its 20 tracks split 15 weak and 5 significant. That does not rule one out in the future, only that none has been recorded since 1950.
What a storm shelter costs near Potter County
For a Potter County homeowner, budget $2,890-$13,280 for a shelter or safe room ($7,645 typical) - this pass found no South Dakota-specific rebate on top of FEMA's underlying 75% national cost-share program.
The outage nobody plans for
Power loss after a tornado outbreak in South Dakota often reaches homes the storm itself never touched. A battery-backup unit covers the outage without the fuel and venting a generator needs.
Read this before you rely on it
This is a county-level figure, not a per-address probability. Potter County covers about 861 square miles, so a single touch here counts the same as a single touch in a county a fraction of that size. Pre-radar-era records (before the 1990s) are also documented by NOAA as undercounting weaker tornadoes in sparsely-instrumented areas. Potter County has about 2,402 residents.