London tornado of 1091

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The London Tornado of 1091 is reckoned by modern assessment of the reports as possibly a T8 tornado (roughly equal to an F4 tornado) which occurred in London, England. Britain's earliest reported tornado, it occurred on Friday, 17 October 1091, killing two.[note 1] The wooden London Bridge was demolished, and the church of St. Mary-le-Bow in the city of London was badly damaged; four rafters 26 feet (7.9 m) long were driven into the ground with such force that only 4 feet (1.2 m) protruded above the surface. Other churches in the area were demolished, as were over 600 (mostly wooden) houses.

By the time of the tornado London probably had a population of 20,000 inhabitants[citation needed] to bear witness to the gigantic twister as it tore apart their city. It is remarkable to note that for all the damage inflicted, the tornado claimed just two victims.[1]

There was another "Great Wind" in the Stuart Period, and tornadoes probably accompanied the Great Storm of 1987.



  1. ^ "British & European Tornado Extremes". The Tornado & Storm Research Organisation (TORRO). Retrieved 5 November 2011. 

Further reading[edit]

  • Rowe, M. W. (1976). "Tornadoes in medieval Britain". Journal of Meteorology 1 (7): 219–222.