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Portal:Tornadoes

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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.
Plot of all tornado touchdowns during the outbreak

The 2010 New Year's Eve tornado outbreak was a three-day-long tornado outbreak that impacted the central and lower Mississippi Valley from December 30, 2010 to January 1, 2011. Associated with a low pressure system and a strong cold front, 37 tornadoes tracked across five states over the length of the severe event, killing nine and injuring several others. Activity was centered in the states of Missouri and later Mississippi on December 31. Seven tornadoes were rated EF3 on the Enhanced Fujita Scale; these were the strongest during the outbreak. Non-tornadic winds were recorded to have reached as high as 80 mph (130 km/h) at eight locations on December 31, while hail as large as 2.75 in (7.0 cm) was documented north-northeast of Mansfield, Missouri. Overall, damage from the outbreak totaled US$123.3 million, most of which was related to tornadoes. This is the most prolific tornado outbreak in Missouri in the month of December.

The United States Storm Prediction Center first noted a possible New Year's Eve severe weather event as early as December 25, 2010. These forecasts gained confidence as the event approached, with a focus on the Ozarks and adjacent areas. Supercells developed in this area during the night of December 30 and tracked across central Missouri, producing several tornadoes and large hail. However, the bulk of activity during the outbreak was a result of a long line of supercells that tracked from Oklahoma to Illinois, producing five EF3 tornadoes. One of these tracked through northwestern Arkansas, killing four. Another tore through eastern sections of Fort Leonard Wood in Missouri, destroying 159 homes and causing US$90 million in damage, making it the costliest tornado of the outbreak. A separate cluster of storms later developed in Louisiana before tracking into Mississippi, producing several tornadoes across southern and central regions of the state on January 1. (Full article...)

List of selected tornado articles

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These are all known tornadoes resulting in student deaths at primary and secondary schools in the United States from 1865 to 2015. For the deadliest tornado incidents, only fires/explosions and bombings have killed more students. (Full article...)

List of selected tornado lists

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Damage to a marina in Vancouver from an EF1 tornado.

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Tracks of all US tornadoes in 1964.

This page documents the tornadoes and tornado outbreaks of 1964, 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

The storm system responsible for the outbreak and derecho, as seen on April 2

From April 1 to 3, 2024, a significant tornado outbreak, along with 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.

The outbreak first began over portions of the Great Plains and Midwest on April 1, with widespread large hail and damaging winds and a few tornadoes being reported. The outbreak then spread to the Midwest and Ohio Valley on April 2, where the derecho occurred. This was followed by supercell development later in the afternoon. Severe storms also affected parts of the Mid-Atlantic on April 3 as well.

A total of 32 million people were estimated to be under watches or warnings, and over 700,000 people were estimated to be without power. Twenty-five people were injured; and five people were killed, all of them by non-tornadic events; three of which happened when downed trees fell onto vehicles in Pennsylvania and New York. The storm system was also responsible for causing flooding in parts of the Northeast. As well as heavy snow over parts of the Midwest and Northern New England. (Full article...)

Tornado anniversaries

November 8

  • 1879 – A tornado family with members up to F3 intensity hit Strasburg and Page City, Missouri. Two people died in Page City, where six of the twelve homes, a store, and a railroad depot were destroyed. An F2 tornado killed one person near Fort Smith, Arkansas.
  • 1989 – An F2 tornado destroyed several homes and trailers in Pineview, Georgia. A child was killed in a trailer that was thrown 200 feet (61 m) and eight other people were injured.
  • 1996 – An F2 tornado lifted an unanchored mobile home near Chester, Georgia, killing a child and injuring six family members. Victims were carriedup to 200 yards (about 200 meters).

November 9

  • 1864 – One of few known tornadoes from during the American Civil War hit Chester and Richview, Illinois at about 2:00 AM, killing at least five people, including four in Chester. There were rumors of up to 20 deaths. A ferry on the Mississippi River was destroyed with only the hull, engine, and boilers left behind.
  • 1926 – An estimated F3 tornado struck La Plata, Maryland, killing 17 people and injuring 65. Fourteen deaths were in a school that was thrown into a grove of trees and destroyed.

November 10

  • 1915 – A tornado outbreak affected the Midwestern United States with the worst impacts in Kansas. An F4 tornado destroyed 160 homes in Great Bend, Kansas, killing 11 people and injuring 75. Debris was carried 85 miles (137 km). At least 1000 sheep were killed, and dead ducks fell from the sky near Claflin, Kansas. Another F4 tornado killed four people in Zyba and Derby, Kansas.
  • 1957 – One of Japan's deadliest tornadoes hit Tomiye City in [[Nagasaki Prefecture, killing six people.
  • 2002 – The second day of a three-day tornado outbreak had its worst impacts across the Midwestern and Eastern United States, resulting in 32 deaths. An F3 tornado devastated Mossy Grove and Joyner, Tennessee, killing seven people and injuring 28. A long-track F3 tornado traveled 72 miles (116 km) across northern Alabama; all 7 deaths and 40 injuries were along a 10-mile (16 km) stretch in and near Saragossa. An F4 tornado, up to half a mile (0.8 km) wide, hit Van Wert and Roselms, Ohio, killing four people. Only one structure in Roselms was left standing.

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The California Closets Warehouse that was severely damaged by the tornado

The 2006 Westchester County tornado was the strongest and largest tornado in Westchester County, New York since the 1904 Chappaqua tornado. It touched down there on Wednesday, July 12, 2006, and traveled 13 miles (21 km) into southwestern Connecticut during a 33-minute span through two states. The tornado touched down at 3:30 p.m. EDT (19:30 UTC) on the shore of the Hudson River before becoming a waterspout and traveling 3 mi (5 km) across the river. Coming ashore, the tornado entered Westchester County and struck the town of Sleepy Hollow at F1 intensity. After passing through the town, it intensified into an F2 tornado and grew to almost a one-quarter mile (400 m) in diameter. The tornado continued through the county, damaging numerous structures, until it crossed into Connecticut at 4:01 p.m. EDT (20:01 UTC). Not long after entering the state, it dissipated in the town of Greenwich at 4:03 p.m. EDT (20:03 UTC). When the tornado entered Westchester County, it was the eighth known tornado to either touch down or enter the county since 1950.

Two barns and a warehouse were destroyed, and a large stained-glass window was shattered. Numerous homes and businesses were damaged and thousands of trees were uprooted. There were no fatalities and only six minor injuries were associated with the storm. The cost of damages was estimated at $12.1 million. (Full article...)

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