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This rotating updraft is known as a mesocyclone. [8] For a tornado to form in this manner, a rear-flank downdraft enters the center of the mesocyclone from the back. Cold air, being denser than warm air, is able to penetrate the updraft. The combination of the updraft and downdraft completes the development of a tornado.
A tornado is a violently rotating column of air in contact with the surface and a cumuliform cloud base. Tornado formation is caused by the stretching and aggregating/merging of environmental and/or storm-induced vorticity that tightens into an intense vortex. There are various ways this may come about and thus various forms and sub-forms of ...
As the Lookeba tornado moved northeast towards the Caddo/Canadian county border, between 3:40 and 3:42 p.m. the supercell's mesocyclone broadened and weakened slightly; this was followed by the development of a second mesocyclone from the original to the east-southeast between 3:42 and 3:44 p.m. [10]: 2689 This marked the start of the decay of ...
Tornado’s victims are identified 04:00 , Louise Boyle An 11-year-old boy was among the three people killed by the massive tornado which tore through a Texas Panhandle town on Thursday.
A tornado watch has been issued for parts of western Oklahoma and northwest Texas until 1 p.m. Saturday, with the potential for tennis ball-sized hail and winds reaching up to 70 mph, per CNN.
Satellite images detail scenes of devastation from the rare December tornadoes that hit multiple states and killed at least 74 people.
Occasionally, the old (occluded) mesocyclone and the new mesocyclone produce a tornado at the same time. [ citation needed ] Although this is a widely accepted theory for how most tornadoes form, live, and die, it does not explain the formation of smaller tornadoes, such as landspouts, long-lived tornadoes, or tornadoes with multiple vortices.
An EF-4 tornado first touched down in southwestern Tennessee and traveled 165.7 miles to Falls of Rough, Kentucky, tracking through 11 Kentucky counties, according to the National Weather Service.