London Tornado of 1091

The London Tornado of 1091 is reckoned by modern assessment of the reports as possibly a T8 tornado (roughly equal to an F4 tornado). Britain's earliest reported tornado, it occurred on 17 October 1091, killing two. [23 October by modern reckoning, adjusted for the difference between the Julian calendar then in use and the Gregorian Calendar.( [http://www.pbs.org/wgbh/nova/tornado/country.html PBS Hunt for the Supertornado] )] The wooden London Bridge was demolished, and the church of St. Mary-le-Bow in the city of London was badly damaged; four rafters convert|26|ft|m|abbr=off|lk=off long were driven into the ground with such force that only convert|4|ft|m|abbr=off|lk=off protruded above the surface. Other churches in the area were demolished, as were over 600 (mostly wooden) houses. [ [http://www.torro.org.uk/TORRO/research/whirlextreme.php (Tornado and Storm Research Organisation) Tornado extreme] ]

Notes

Further reading

*cite journal |last=Rowe |first=M. W. |authorlink= |coauthors= |year=1976 |month= |title=Tornadoes in medieval Britain |journal=Journal of Meteorology |volume=1 |issue=7 |pages=219–222 |id= |url= |accessdate= |quote=