Cavalier County, ND: Tornado Risk and Shelter Cost
Cavalier County, ND: what NOAA's tornado record says
NOAA's Storm Prediction Center has recorded 43 tornado tracks touching Cavalier County since 1959 - about one every 1.8 years on average. That puts it in our High band nationally. Against the rest of the country, that is the 82nd percentile for frequency. North Dakota has 53 counties in this dataset; Cavalier County ranks 14 of them by frequency.
Has Cavalier County ever had a violent tornado?
Nothing violent in Cavalier County's file: 43 tracks total, topping out at significant (EF2-3) strength on 4 of them, zero at EF4-5.
Paying for it, if Cavalier County's history says you should
A storm shelter or in-residence safe room typically runs $2,890-$13,280 nationally, around $7,645 for a common single-family installation. No state-administered rebate program specific to North Dakota was confirmed for this site - FEMA's own Hazard Mitigation Assistance grants fund 75% of an approved safe room nationwide, but only some states currently run a homeowner-facing application on top of that.
The gap a shelter does not cover
3,567 people live in Cavalier County, and a tornado outbreak's power loss usually reaches far more of North Dakota than the tracks themselves touch. A portable battery unit is the faster, no-fuel way to bridge that outage.
County-level, not address-level
Treat this as a county-wide figure, not a prediction for one address. Cavalier County covers about 1,489 square miles, so a single touch here counts the same as a single touch in a county a fraction of that size. And records from before the 1990s, NOAA notes, undercount weaker tornadoes in areas with less storm-spotting coverage at the time. Cavalier County has about 3,567 residents.