Winneshiek County, IA Tornado Risk & Storm Shelter Cost
Winneshiek County's tornado history, by the numbers
Since 1957, NOAA has logged 24 tornado tracks crossing Winneshiek County - one about every 3.2 years, which lands it in our Moderate band. Nationally, Winneshiek County ranks at the 58th percentile for tornado frequency. Among 99 Iowa counties in this dataset, Winneshiek County ranks 81 for how often a tornado touches down.
Winneshiek County's EF4-5 history
Winneshiek County has 1 violent (EF4-5) tornado on record. FEMA centers its safe-room case on exactly this strength, not on how often a county gets touched - a hardened room is the difference between a code-built house surviving an EF4-5 or not.
What a storm shelter costs near Winneshiek County
For a Winneshiek County homeowner, budget $2,890-$13,280 for a shelter or safe room ($7,645 typical) - this pass found no Iowa-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 Iowa 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. Winneshiek County covers about 690 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. Winneshiek County has about 19,723 residents.