Tornado Risk in Jones County, SD
How likely is a tornado in Jones County, SD?
8 tornado tracks have crossed Jones County since 1971 by NOAA's count, roughly one every 9.5 years - the Low band on this site's scale. That is the 23rd percentile nationally for tornado frequency. Among 66 South Dakota counties in this dataset, Jones County ranks 65 for how often a tornado touches down.
The number that matters more than frequency
No violent (EF4-5) tornado has been recorded in Jones County in NOAA's 76-year database. Of its 8 recorded tracks, 5 were weak (EF0-1) and 3 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 Jones 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 Jones 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 Jones County's figure does not tell you
Jones County's figure is county-wide, not address-specific. Jones County covers about 970 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. Jones County has about 874 residents.