By State › Ohio

Ohio: Overview

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Everything in the main manual and the skill guides applies in Ohio exactly as written. What’s different here is the specific hazard profile and the state, local, and legal context around it. This page is the starting point; the other three pages under Ohio go deeper on laws, local resources, and the data behind the risks named here.

The Xenia tornado: one of the deadliest in U.S. history

On April 3, 1974, an F5 tornado tore through Xenia, Ohio during the 1974 Super Outbreak, at the time the largest tornado outbreak ever recorded, 148 tornadoes across 13 states in 24 hours. The Xenia tornado alone killed 32 people and destroyed or damaged roughly half the town’s buildings. Statewide, the outbreak killed 39 Ohioans, injured 2,000, and destroyed 7,000 homes. See the Risks page for the full data.

East Palestine: a hazard this manual’s framework already covers, from a different cause

In February 2023, a Norfolk Southern freight train carrying hazardous chemicals derailed in East Palestine, Ohio, near the Pennsylvania border. Several tank cars, including ones carrying vinyl chloride, ruptured, and officials conducted a controversial controlled burn days later. This is the first industrial/hazmat disaster covered in this section of the site, every other state’s case studies so far have been natural hazards, and it’s a useful reminder that this manual’s shelter-in-place, evacuation, and go-bag guidance applies just as directly to a chemical release as to a hurricane or earthquake.

What this means for how you use the rest of this manual

The manual’s Tier structure and the skill guides apply without modification. What’s different in Ohio: tornado season preparation (a safe room, a weather radio, a practiced shelter plan) matters across the state, and households anywhere near a major rail line, which in Ohio’s industrial corridors is a meaningful number of people, benefit from the same evacuation-kit and shelter-in-place planning this manual already recommends for other hazards, just triggered by a different kind of warning.

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