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TWISTEX (a backronym for Tactical Weather-Instrumented Sampling in/near Tornadoes Experiment) was a tornado research experiment that was founded and led by Tim Samaras of Bennett, Colorado, US, that ended in the deaths of three researchers in the 2013 El Reno tornado. The experiment announced in 2015 that there were some plans for future ...
The first tornado associated with the system was a small landspout tornado that touched down in rural Idaho on May 26. [9] The tornadic activity became more intense the following day. On May 27, while only scattered tornadoes touched down, four of them were strong and caused considerable damage in parts of Kansas and Nebraska. [ 10 ]
The tornado simultaneously took an unexpected sharp turn, closing on their position as it rapidly accelerated within a few minutes from about 20 mph (32 km/h) to as much as 60 mph (97 km/h) in forward movement and swiftly expanded from about 1 mile (1.6 km) to 2.6 miles (4.2 km) wide in about 30 seconds, and was mostly obscured in heavy ...
On May 24, 2011, Laubach saw his 200th career tornado in Fairview, Oklahoma. In 2012, he returned to solo chasing. On May 31, 2013, Laubach documented the largest tornado on record near El Reno, Oklahoma. [17] That tornado took the lives of his fellow TWISTEX teammates Tim Samaras, Paul Samaras, and Carl Young of South Lake Tahoe, California ...
Mobile doppler weather radars have been used on dozens of scientific and academic research projects from their invention in the late 1900s. [1] One problems facing meteorological researchers was the fact that mesonets and other ground-based observation methods were being deployed too slow in order to accurately measure and study high-impact atmospheric phenomena. [1]
[1] [2] One type of mesoscale discussion is a meso-gamma mesoscale discussion, which are for tornadoes believed to be at least EF2 on the Enhanced Fujita scale, or winds at least 100 miles per hour (160 km/h).
The tornado ultimately attained EF3 intensity during its existence, according to ground surveys. [8] As the tornado passed south of El Reno across U.S. 81, it grew to an unprecedented width of 2.6 miles (4.2 km), becoming the widest known tornado ever recorded in the United States.
List of confirmed tornadoes – Saturday, May 4, 2013 [nb 1]; EF# Location County State Start Coord. Time () Path length Max width Summary EF0 Elkton: St. Johns