Search results
Results from the WOW.Com Content Network
This can last from a few minutes to more than an hour, and during that time a tornado often causes the most damage, and in rare cases can be more than 1.6 km (1 mile) across. The low pressured atmosphere at the base of the tornado is essential to the endurance of the system. [59]
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 ...
Conversely, tornadoes which leave behind little to no damage can not be accurately represented using damage assessment methods. [4] Tornadoes that happened farther in the past or in regions outside of more tornado-prepared areas will have similar difficulty in receiving an accurate rating due to a dearth of information.
Tornado myths exist that may cause ill-conceived preparation, planning, and reactions to tornadoes. For instance: some people mistakenly believe that tornadoes only occur in the countryside. For instance: some people mistakenly believe that tornadoes only occur in the countryside.
This article's lead section may be too long. Please read the length guidelines and help move details into the article's body. (August 2024) Tornadoes in the United States 1950-2019 A tornado strikes near Anadarko, Oklahoma. This was part of the 1999 Oklahoma tornado outbreak on May 3, 1999. Tornadoes are more common in the United States than in any other country or state. The United States ...
While most tornadoes attain winds of less than 110 miles per hour (180 km/h), are about 250 feet (80 m) across, and travel a few miles (several kilometers), the wind speeds in the most intense tornadoes can reach 300 miles per hour (480 km/h), are more than two miles (3 km) in diameter, and stay on the ground for dozens of miles (more than 100 km).
Strong mesocyclones show up as adjacent areas of yellow and blue (on other radars, bright red and bright green), and usually indicate an imminent or occurring tornado. The history of tornado research spans back centuries, with the earliest documented tornado occurring in 200 and academic studies on them starting in the 18th century. This is a ...
Dust devils typically do not cause injuries, but rare, severe dust devils have caused damage and even deaths in the past. [9] One such dust devil struck the Coconino County Fairgrounds in Flagstaff, Arizona , on September 14, 2000, causing extensive damage to several temporary tents, stands and booths, as well as some permanent fairgrounds ...