Search results
Results From The WOW.Com Content Network
A tornado is a violently rotating column of air that is in contact with both the surface of the Earth and a cumulonimbus cloud or, in rare cases, the base of a cumulus cloud. It is often referred to as a twister, whirlwind or cyclone, [ 1 ] although the word cyclone is used in meteorology to name a weather system with a low-pressure area in the ...
This is caused by the large amount of vertical wind shear to the right of the storm. [13] Tornadoes are also spawned from U.S. hurricanes due to the moistness of the air at the landfall of the storm, which makes conditions favorable for a supercell storm to develop within the hurricane. [14]
This is a list of the deadliest tornadoes in world history. This list includes confirmed individual tornadoes that caused 100 or more direct fatalities. The deadliest tornadoes by far have occurred in a small area of Bangladesh and East India. In this 8,000-square-mile (21,000 km 2) area, 24 of the 42 tornadoes which are known to have killed ...
The list is most complete for the U.S., but does include other areas. Within the United States 1,163 tornadoes were associated with tropical cyclones, [1] accounting for slightly under 6% of all tornadoes. The most tornadoes spawned by a single tropical cyclone were associated with Hurricane Ivan, which spawned 120 tornadoes.
Rare January outbreak produced strong tornadoes as far north as Wisconsin, where an EF3 tornado caused major damage in the town of Wheatland. Another EF3 tornado caused severe damage in and around Lawrence, Illinois, as well. An EF3 tornado killed three people near Strafford, Missouri, and an EF2 tornado killed one near Appleton, Arkansas
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 ...
Since its initial usage in May 1999, the National Weather Service (NWS) in the United States has used the tornado emergency bulletin, an unofficial, high-end classification of tornado warning—sent through either the issuance of a warning or via a "severe weather statement" that provides updated information on an ongoing warning—that is issued when a violent tornado (confirmed by radar or ...
A multiple-vortex tornado outside Dallas, Texas, on April 2, 1957. A multiple-vortex tornado is a tornado that contains several vortices (called subvortices or suction vortices) revolving around, inside of, and as part of the main vortex. The only times multiple vortices may be visible are when the tornado is first forming or when condensation ...