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.
House damage from Northeast Oklahoma City tornado
On June 13, 1998, a tornado outbreak occurred across much of the United States. The day saw 45 tornadoes touchdown primarily across Kansas, Nebraska, and Oklahoma. The outbreak saw the Storm Prediction Center outline two Moderate Risk areas in parts of Virginia, North Carolina, and South Carolina, and in parts of Kansas and Nebraska. Additionally, two far more expansive Slight Risk areas were delineated across much of the Central and Eastern United States. By 06:00 UTC June 14, tornadoes had struck parts of six states, including downtown Sabetha, Kansas and parts of North Oklahoma City and the vicinity. (Full article...)
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This is a list of all tornadoes that were confirmed by local offices of the National Weather Service in the United States in April 2012. (Full article...)
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A tornado near Allen, South Dakota, on June 29, 2019.

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List of tornadoes by year

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2024 tornado activity

Map of tornado warnings and confirmed tornadoes from the outbreak

From April 26–28, 2024, a very large, deadly and destructive tornado outbreak occurred across the Midwestern, Southern, and High Plains regions of the United States, primarily on April 26 and 27. The Storm Prediction Center (SPC) first issued an enhanced risk for the Plains on April 26, as a broad upper-trough moved eastwards, with tornadic activity erupted in the states of Iowa and Kansas that evening. A moderate risk was issued by the SPC on April 27 for areas further south in Oklahoma, where a deadly nocturnal event unfolded with many supercell thunderstorms and tornadoes tracking over towns several times. Millions were put under a particularly dangerous situation (PDS) tornado watch on April 27, and several PDS tornado warnings were issued that night as numerous strong tornadoes touched down. The outbreak served as the beginning of a broader 16-day period of constant severe weather and tornado activity across the United States that would continue until May 10.

Damaging tornadoes occurred across many states over the two days of the outbreak. On April 26, a tornado in Lancaster County, Nebraska, injured three people, which touched down in the northeastern outskirts of Lincoln, Nebraska. At least six fatalities were attributed to the tornadoes, with more than 156 people injured. At least twenty eight tornadoes were confirmed, with ten in Iowa and one each in Nebraska and Texas. Significant damage was also reported in Elkhorn and near Bennington, Nebraska, from an EF3 wedge tornado that prompted a tornado emergency. Another long-tracked tornado in Iowa that impacted Shelby County, Iowa, prompted two tornado emergencies as well. On April 27, several tornadoes occurred in Texas, Oklahoma, and Kansas. Overnight, a significant tornado passed near Holdenville, Oklahoma, causing at least two fatalities and four injuries. A tornado impacted Sulphur, Oklahoma, as well, causing at least 30 injuries.

The outbreak was the largest since a similarly large and deadly outbreak the year prior, although this one was spread out over a slightly larger time period and was not as deadly. Six people died as a result of this outbreak, and over 150 others were injured. With a grand total of 138 tornadoes over a two-day period, the tornado outbreak gained 87 points on the outbreak intensity score. (Full article...)

Tornado anniversaries

May 14

  • 1886 – A tornado outbreak impacted the Midwestern United States. An F4 tornado, destroyed farm homes near Portland, Indiana before crossing into Ohio, where it killed six people, most of them on farms near Celina. An F3 tornado, described as "an immense balloon moving at 80 mph," killed 11 people as it struck Dunkirk and Cary, Ohio.
  • 1923 – An F5 tornado obliterated farms, including a large ranch house, across Howard and Mitchell Counties, Texas, killing 23 people and injuring 250.

May 15

  • 1896 – A tornado, nearing the end of its track, narrowed and intensified to F5 strength, carving a 60-yard-wide path of complete destruction through Sherman, Texas. Even though only a small part of town was affected, 60 people were killed with up to 7 deaths in a single family. Another 13 people were killed on farms outside of Sherman.
  • 1968 – A large tornado outbreak affected the central and southern United States, killing 72 people. An F4 tornado destroyed 164 homes in Jonesboro, Arkansas, resulting in 35 deaths and 361 injuries. Two F5 tornadoes touched down in Iowa. One devastated Charles City, killing 13 people, injuring 450, and damaging or destroying nearly 2,000 homes. The other struck Oelwein, where it killed 5 people and damaged or destroyed nearly 1,000 homes.

May 16

  • 1999 – An F3 tornado destroyed several homes and a bridge near Logan, Iowa. Two people, out of a family of five taking cover in a ditch, were killed when their car and a combine header were blown on top of them.
  • 2017 – The most destructive day of an outbreak sequence brought several strong tornadoes to the Central United States. An EF3 tornado traveled 83 miles (134 km) across parts of Wisconsin, the longest single tornado track in state history, and devastated a trailer park near Chetek, killing one person and injuring 25. An EF2 tornado killed one person near Carter, Oklahoma.

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Hailstones dropped during the storm, compared to a cricket ball (7 cm or 2.8 in diameter)

The 1999 Sydney hailstorm was the costliest natural disaster in Australian insurance history, causing extensive damage along the east coast of New South Wales. The storm developed south of Sydney on the afternoon of Wednesday, 14 April 1999, and struck the city's eastern suburbs, including the central business district, later that evening.

The storm dropped an estimated 500,000 tonnes of hailstones in its path. The insured damage bill caused by the storm was over A$1.7 billion (equivalent to $3.8 billion in 2022), with the total bill (including uninsured damage) estimated to be around $2.3 billion. It was the costliest single natural disaster in Australian history in insured damage, surpassing the $1.1 billion in insured damage caused by the 1989 Newcastle earthquake. Lightning also claimed one life during the storm, and the event caused approximately 50 injuries. (Full article...)

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The scope of WikiProject Severe weather is to write articles about severe weather, namely thunderstorms and tornadoes. Their talk page is located here.

WikiProject Weather is the main hub for all articles that are weather-related. WikiProject Weather strives to improve articles in a variety of weather topics, including Tropical Cyclones, Severe Weather, General meteorology, Non-tropical Storms, Climate, Floods, Droughts and wildfires, Meteorological instruments and data, Meteorological Biographies, and Space Weather. If you would like to help, please visit the project talk page.

WikiProject Meteorology is a collaborative effort by dozens of Wikipedians to improve the quality of meteorology- and weather-related articles. If you would like to help, visit the project talk page, and see what needs doing. The project is currently being merged into WikiProject Weather.

WikiProject Tropical cyclones is a daughter project of WikiProject meteorology. The dozens of semi-active members and several full-time members focus on improving Wikipedia's coverage of tropical cyclones.

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