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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 ...
Tornadoes occurring in these conditions are especially dangerous, since only weather radar observations, or possibly the sound of an approaching tornado, serve as any warning to those in the storm's path. Most significant tornadoes form under the storm's updraft base, which is rain-free, [36] making them visible. [37]
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.”
Severe tornado damage occurs with an EF3 tornado, which has wind speeds of 136 to 165 mph. Some walls of well-constructed houses can be torn off. Most trees in the path of the twister will be ...
Tornadoes can form any time the conditions are right. They take many shapes, but they all start the exact same way. Here's what to know.
The project directors were also interested in why some supercells, or mesocyclones within such storms, produce tornadoes while others do not. It also sought to determine why some supercells form violent tornadoes versus weak tornadoes. The original project took place in 1994 and 1995.
The project involved over a hundred people from sixteen organizations and was described as "the largest and most ambitious study focused on improving [the] understanding of tornadoes associated with linear storms." The PERiLS Project was funded by two grants from the National Science Foundation, three grants from the NOAA's VORTEX-USA program ...
Science & Tech. Sports. Weather. 24/7 ... be evident during post-storm damage surveys. Intense tornadoes can occasionally be accompanied by smaller funnels, known as satellite tornadoes, that ...