Tornado Risk in Miner County, SD
How likely is a tornado in Miner County, SD?
40 tornado tracks have crossed Miner County since 1962 by NOAA's count, roughly one every 1.9 years - the Elevated band on this site's scale. That is the 80th percentile nationally for tornado frequency. Among 66 South Dakota counties in this dataset, Miner County ranks 17 for how often a tornado touches down.
The number that matters more than frequency
No violent (EF4-5) tornado has been recorded in Miner County in NOAA's 76-year database. Of its 40 recorded tracks, 28 were weak (EF0-1) and 11 significant (EF2-3).
Shelter and safe-room economics
South Dakota does not currently have a confirmed state rebate layered on top of FEMA's 75% Hazard Mitigation cost-share, so a Miner County homeowner should expect the full national range: $2,890-$13,280, $7,645 typical.
Power after the storm, not just shelter during it
The storm that misses Miner County outright can still take its power out - outbreak-scale outages across South Dakota are common well beyond the tracked path. A battery-backup unit handles that without a generator's setup or fuel.
What Miner County's figure does not tell you
Miner County's figure is county-wide, not address-specific. Miner County covers about 570 square miles, so a single touch here counts the same as a single touch in a county a fraction of that size. NOAA also documents that older records undercount weaker tornadoes from before Doppler radar became standard. Miner County has about 2,303 residents.