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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.
A multiple-vortex tornado is a type of tornado in which two or more columns of spinning air rotate about their own axes and at the same time revolve around a common center. A multi-vortex structure can occur in almost any circulation, but is very often observed in intense tornadoes.
Finally, the visible funnel extends to the ground, and the tornado begins causing major damage. Tornadogenesis occurring in Falcon, Colorado. Note the faint dust swirl beneath the funnel cloud. A diagram showing the contributing weather systems to Tornado Alley in the United States, a loosely-defined area that is prone to tornadoes.
A man walks past tornado damage in Sulphur, Okla., Sunday, April 28, 2024, after severe storms hit the area the night before.
Tornadoes can occur anywhere in the U.S., according to the National Weather Service.Tornadoes are “most common in the central plains east of the Rocky Mountains and west of the Appalachians.”
The largest tornado ever documented was a multiple-vortex tornado. It struck El Reno, Oklahoma, on May 31, 2013, as a rain-wrapped tornado, taking the lives of tornado researcher Tim Samaras, his son Paul, and their TWISTEX colleague, Carl Young. This storm also took the life of local amateur chaser, Richard Henderson. [2]
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.
Tornado outbreak of June 2, 1998; Tornado outbreak of June 13, 1998; Corn Belt derecho; Hurricane Georges tornado outbreak; 1998 Oklahoma tornado outbreak; Tornadoes of 1999. Tornado outbreak of January 17–18, 1999; Tornado outbreak of January 21–23, 1999; Tornado outbreak of April 2–3, 1999; Tornado outbreak of April 8–9, 1999; 1999 ...