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Most UK tornadoes are T6 or below with the strongest known UK tornado estimated as a T8 (the London tornado of 1091). For comparison, the strongest detected winds in a United States tornado (during the 1999 Oklahoma tornado outbreak) would be T11 using the following formulas: v = 2.365 (T+4) 3/2 m/s v = 8.511 (T+4) 3/2 km/h v = 5.289 (T+4) 3/2 mph
Completed Tornado Diagram. Tornado diagrams, also called tornado plots, tornado charts or butterfly charts, are a special type of Bar chart, where the data categories are listed vertically instead of the standard horizontal presentation, and the categories are ordered so that the largest bar appears at the top of the chart, the second largest appears second from the top, and so on.
Intensity cannot be determined due to a lack of information. This rating applies to tornadoes that traverse areas with no damage indicators, cause damage in an area that cannot be accessed by a survey, or cause damage that cannot be differentiated from that of another tornado. [4] N/A EF0: 65–85: 105–137 52.82% Minor damage.
Some of the most notorious twisters in U.S. history were wedge tornadoes, including the EF5 that leveled Joplin, Missouri, on May 22, 2011, and the El Reno tornado, which was a jaw-dropping 2.6 ...
Tornadoes of 1912. Tornado outbreak of April 20–22, 1912; Tornado outbreak of April 27–29, 1912; Tornadoes of 1913. 1913 Easter tornado outbreak; Tornadoes of 1916. Tornado outbreak of June 5–6, 1916; Tornadoes of 1917. March 1917 tornado outbreak; Tornado outbreak sequence of May 25 – June 1, 1917; Tornadoes of 1918. 1918 Tyler tornado ...
This tornado season got off to an accelerated start, with the cumulative number of storms thus far eclipsing storm counts in recent years — and the 15-year average.
NWS rates the force of a tornado by wind speed and the damage it leaves behind on a scale named for meteorologist Ted Fujita and refined in 2007 as the "Enhanced Fujita" — EF — in categories ...
The 1977 Birmingham–Smithfield F5 tornado's damage was surveyed by Ted Fujita and he "toyed with the idea of rating the Smithfield tornado an F6". [13] In 2001, tornado expert Thomas P. Grazulis stated in his book F5–F6 Tornadoes; "In my opinion, if there ever was an F6 tornado caught on video, it was the Pampa, Texas tornado of 1995". [14]