The <a href="https://en.wikipedia.org/wiki/June_1990_Lower_Ohio_Valley_tornado_outbreak" id="mw7g" rel="mw:WikiLink" title="June 1990 Lower Ohio Valley tornado outbreak">Lower Ohio Valley tornado outbreak</a> spawns 66 confirmed tornadoes in <a href="https://en.wikipedia.org/wiki/Illinois" id="mw7w" rel="mw:WikiLink" title="Illinois">Illinois</a>, <a href="https://en.wikipedia.org/wiki/Indiana" id="mw8A" rel="mw:WikiLink" title="Indiana">Indiana</a>, <a href="https://en.wikipedia.org/wiki/Kentucky" id="mw8Q" rel="mw:WikiLink" title="Kentucky">Kentucky</a>, and <a href="https://en.wikipedia.org/wiki/Ohio" id="mw8g" rel="mw:WikiLink" title="Ohio">Ohio</a>, killing 12.