How Likely Is a Tornado in Marshall County, OK?
Marshall County, OK: what NOAA's tornado record says
Marshall County has recorded 37 tornado touches in NOAA's 76-year database, a rate of roughly one every 2.1 years - our Elevated band. Put another way: Marshall County sees more tornado activity than 77% of US counties. Oklahoma has 77 counties in this dataset; Marshall County ranks 68 of them by frequency.
Beyond the frequency band: violent history
1 tornado touching Marshall County reached violent (EF4-5) strength since 1950. That single fact carries more weight for the shelter decision than the county's overall frequency band.
The dollar figure Marshall County's rating leads to
Oklahoma's SoonerSafe Safe Room Rebate Program is the number that matters for a Marshall County homeowner: 75% of an approved shelter, capped at $3,000, cutting the typical $2,890-$13,280 national range to about $722.5-$10,280 net. Lottery-based; no confirmed 2026 FEMA funding round per local reporting - check current status before assuming it is open.
What a direct hit isn't required for
Power loss after a tornado outbreak in Oklahoma often reaches homes the storm itself never touched. A battery-backup unit covers the outage without the fuel and venting a generator needs.
What this number is, and is not
One caveat before relying on Marshall County's number: it is county-wide, and it covers about 371 square miles, so a single touch counts the same as one in a county a fraction of that size. Weaker pre-1990s tornadoes are also documented as undercounted in NOAA's own record. Marshall County has about 16,147 residents.