May 26 – Matsuo Bashō begins the journey described in Oku no Hosomichi ("Narrow road to the interior") on which he visits Kisakata, and later composes a waka about Kisakata's islands.
May 26: Ratko Mladić, the war crimes fugitive accused of orchestrating the Siege of Sarajevo and the Srebrenica massacre, has been arrested in Serbia.
The tornado continued causing damage in residential areas before crossing the Missouri River into St. Louis County and Earth City, Bridgeton, and the northern side of Maryland Heights as it moved along Interstate 70 near its intersection with Interstate 270.
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Only the interior walls were left standing at three homes when the tornado reached its strongest point east-northeast of Weldon Spring, west-southwest of St. Charles and Harvester, and south of St. Peters.
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The tornado continued damage as it moved just north of the St. Louis base of the Missouri Air National Guard at Lambert–St. Louis International Airport in Berkeley (which had previously taken a direct hit from an EF4 tornado on April 22, 2011).
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The roof was damaged and windows were broken at an ITT Technical Institute building and a vehicle was flipped in the parking lot.