Montmorency County, MI: Tornado Risk and Shelter Cost
Montmorency County's tornado history, by the numbers
NOAA's Storm Prediction Center has recorded 6 tornado tracks touching Montmorency County since 1957 - about one every 12.7 years on average. That puts it in our Minimal band nationally. Against the rest of the country, that is the 18th percentile for frequency. Michigan has 83 counties in this dataset; Montmorency County ranks 65 of them by frequency.
Has Montmorency County ever had a violent tornado?
Nothing violent in Montmorency County's file: 6 tracks total, topping out at significant (EF2-3) strength on 0 of them, zero at EF4-5.
Paying for it, if Montmorency 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 Michigan 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
9,828 people live in Montmorency County, and a tornado outbreak's power loss usually reaches far more of Michigan 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. Montmorency County covers about 547 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. Montmorency County has about 9,828 residents.