Portal:Tornadoes

The Tornadoes Portal

A tornado near Anadarko, Oklahoma, in 1999
Tornadoes are violently rotating columns of air that are in contact with the Earth and either a cumulonimbus or a cumulus cloud. Tornadoes are often referred to as twisters, whirlwinds, or cyclones. 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). Various types of tornadoes include the multiple vortex tornado, landspout, and waterspout. Other tornado-like phenomena that exist in nature include the gustnado, dust devil, fire whirl, and steam devil. Most tornadoes occur in North America (in the United States and Canada), concentrated in a region nicknamed the Tornado Alley. Tornadoes also occur in South America, South Africa, Europe, Asia, and Oceania.
The tornado near peak intensity near Deer Creek.
Throughout the evening hours of April 9, 2015, an extremely violent and long-lived multiple-vortex tornado tore through the communities near Rochelle and in Fairdale, Illinois. Part of a larger severe weather event that impacted the Central United States, the tornado first touched down in Lee County at 6:39 p.m. CDT (23:39 UTC). It progressed through the counties of Ogle, DeKalb, and Boone before finally dissipating at 7:20 p.m. CDT. Along the tornado's 30.14-mile (48.51 km) path, numerous structures were heavily damaged or destroyed, especially in the small town of Fairdale where two fatalities and eleven injuries were recorded. A few well-constructed homes were swept completely away, indicative of peak winds near 200 mph (320 km/h), the upper bounds of an EF4 tornado. In the aftermath of the event, hundreds of citizens assisted in cleanup and recovery efforts. Economic losses from the tornado reached $19 million (equivalent to $24,000,000 in 2023). (Full article...)
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This is a list of all tornadoes that were confirmed by the National Climatic Data Center in the United States from January to March 1982. During this period, 81 tornadoes touched down across 23 states, resulting in 7 fatalities and numerous injuries. The strongest of these storms was an F4 in the Texas and Oklahoma Panhandles on March 18. Activity greatly varied between the three months, with January being above average, February at record low levels and March around average. Aside from two notable outbreaks, tornado events were sporadic and scattered across the country. More than half of the 60 tornadoes in March occurred during a single outbreak from March 14 to 17. (Full article...)
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An F4 tornado striking Union City, Oklahoma, on May 24, 1973.

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Tracks of all US tornadoes in 1986.
This page documents the tornadoes and tornado outbreaks of 1986, primarily in the United States. Most tornadoes form in the U.S., although some events may take place internationally. Tornado statistics for older years like this often appear significantly lower than modern years due to fewer reports or confirmed tornadoes. (Full article...)
List of tornadoes by year

2024 tornado activity

A destroyed structure in Gallia County, Ohio on April 2
From April 1 to 3, 2024, a significant tornado outbreak, which also included a derecho, affected much of the Midwestern and Southeastern United States. The National Weather Service issued dozens of severe thunderstorm and tornado warnings across West Virginia, Kentucky, Tennessee, Ohio, Oklahoma, Kansas, Illinois, Indiana, and Missouri during the event. A total of 32 million people were estimated to be under watches or warnings, and over 150,000 people were estimated to be without power. and 15 people were injured. The event was given an outbreak intensity score of 28 points, ranking it as a significant tornado outbreak, and five people were killed by non-tornadic events as well. (Full article...)

Tornado anniversaries

July 23

  • 1975 – Two F3 tornadoes touched down in Fulton County, Illinois. The second of these caused major damage in the city of Canton, killing two people and injuring 69. About 100 homes and 50 mobile homes were destroyed with 300 homes and 100 mobile homes damaged, along with 127 businesses damaged or destroyed. Electrical power was not restored until 5 days later, with efforts hampered by electrical workers going on strike.

July 24

  • 1930 – One of the few known F5 tornadoes outside the United States struck Volpago del Montello, and devastated several other communities in Veneto, Italy, killing 23 people and injuring 110. Even sturdy masonry buildings were destroyed.

July 25

  • 1934 – An F3 tornado, spawned by a hurricane, struck north of Edna, Texas, killing five people. Four people died in the destruction of a farmhouse. A farmhand was killed a few hundred yards from the house.
  • 2000 – A tornado outbreak hit parts of Minnesota and South Dakota. Most tornadoes from this event were rated F0, but an F4 tornado hit Granite Falls, Minnesota, killing one person and injuring 15. An F2 tornado damaged farm buildings and killed livestock east of Magnolia, Minnesota.

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The following are images from various tornado-related articles on Wikipedia.

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This is either a featured article or featured list, which represents some of the best articles on English Wikipedia.

A cumulative map of all tornadoes and tornado warnings throughout the outbreak

Accompanying Hurricane Katrina's catastrophic coastal impacts was a moderate tornado outbreak spawned by the cyclone's outer bands. The event spanned August 26–31, 2005, with 57 tornadoes touching down across 8 states. One person died and numerous communities suffered damage of varying degrees from central Mississippi to Pennsylvania, with Georgia sustaining record monetary damage for the month of August. Due to extreme devastation in coastal areas of Louisiana and Mississippi, multiple tornadoes may have been overlooked—overshadowed by the effects of storm surge and large-scale wind—and thus the full extent of the hurricane's tornado outbreak is uncertain. Furthermore, an indeterminate number of waterspouts likely formed throughout the life cycle of Hurricane Katrina.

The outbreak began with an isolated F2 over the Florida Keys on August 26; no tornadoes were recorded the following day as the storm traversed the Gulf of Mexico. Four weak tornadoes were observed on August 28 as the hurricane approached land, each causing little damage. Coincident with Katrina's landfall, activity began in earnest on August 29 with numerous tornadoes touching down across Gulf Coast states. Georgia suffered the greatest impact on this day, with multiple F1 and F2 tornadoes causing significant damage; one person died in Carroll County, marking the first known instance of a tornado-related death in the state during August. A record 18 tornadoes touched down across Georgia on August 29, far exceeding the previous daily record of just 2 tornadoes for the month throughout the state. Activity diminished over the subsequent two days as the former hurricane moved northward. Several more tornadoes touched down across the Mid-Atlantic states before the cessation of the outbreak just after midnight local time on August 31. (Full article...)

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