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2021 Western Kentucky tornado

During the late evening hours of Friday, December 10, 2021, a massive and devastating high-end EF4 tornado, sometimes referred to as the Western Kentucky tornado, Mayfield tornado, or The Beast, tracked a significant distance across Western Kentucky, United States, producing severe-to-catastrophic damage in numerous towns, including Mayfield, Princeton, Dawson Springs, and Bremen. This tornado was the second significant tornado in an exceedingly long-tracked tornado family; it began just inside northern Obion County, Tennessee – a few miles after another long-tracked tornado that traveled through northeast Arkansas, the Missouri Bootheel, and northwest Tennessee – and dissipated in western Obion County. After crossing into Kentucky, the tornado moved through eleven counties of the Jackson Purchase and Western Coal Field regions, at times becoming wrapped in rain during its almost three-hour lifespan that covered 165.6 miles (266.5 km). It was the deadliest and longest-tracked tornado in the outbreak that produced numerous, strong tornadoes in several states; this tornado caused 57 deaths. It became the first violent tornado to strike the state of Kentucky since a deadly 2012 EF4 tornado that occurred over 9 years prior.

Meteorological synopsis
that spawned a tornado family during the outbreak On December 8, 2021, the NWS Storm Prediction Center (SPC) outlined a slight risk of severe weather across a broad area of the Mississippi Valley. Despite the potential for a higher-end severe threat to materialize, forecasters were uncertain about the extent of instability, degree of directional wind shear, and the timing of potential storms. The following day, the SPC noted an increased potential for organized severe thunderstorms in the region between southeastern Arkansas and southern Indiana, and upgraded that area to an enhanced risk. As an intense, upper-level trough progressed across the High Plains, with robust instability and moisture return across the Mississippi Valley, the SPC expanded the enhanced risk and introduced a moderate risk area from northeastern Arkansas into southern Illinois on the morning of December 10. Forecasters indicated atmospheric conditions favored the development of nocturnal supercells capable of producing long-tracked, strong tornadoes. At 3:00 p.m. CST (21:00 UTC), the SPC issued a tornado watch across the highest-risk area: central and eastern Arkansas, west Tennessee, northwestern Mississippi, southeastern Missouri, and southern portions of Illinois and Indiana; it was the first of eleven such warnings issued over the next few hours for the middle Mississippi Valley. Initial storms developed across central Arkansas around 2:00 p.m. CST (20:00 UTC), and weaker activity developed over central Missouri around 90 minutes later. Additional clusters of thunderstorms developed over southwestern Missouri – forming between Bolivar and Carthage, eventually back-building into northeastern Oklahoma – and central Arkansas, forming southwest of Hot Springs, between 5:00 and 5:30 p.m. CST (23:00–23:30 UTC). Though this activity lacked much vigor at its onset due to a strong capping inversion, the convective cells began to show organization as they progressed eastward. One storm that formed from the initial mid-afternoon activity near Arkadelphia, Arkansas, matured into a long-lived supercell as it progressed in an unstable, deeply moist, and highly sheared environment. This cell persisted for more than over several hours from eastern Arkansas to northeastern Kentucky, producing eleven tornadoes, two of which were large and intense. The cell started showing signs of surface-based rotation southwest of Searcy, Arkansas, around 5:30 p.m. CST (23:30 UTC). At 5:51 p.m. CST, the National Weather Service office in North Little Rock issued the first tornado warning associated with the storm for portions of Jackson, Lawrence, White, and Woodruff counties. One of the first tornadoes associated with the storm, an EF0, touched down in western Poinsett County near Weiner around 6:40 p.m. CST; about fifteen minutes later, storm spotters reported a large tornado near Greenfield, prompting a particularly dangerous situation (PDS) tornado warning for portions of Poinsett, Craighead, and Mississippi counties, including areas to the south of Jonesboro. Doppler radar analysis estimated the supercell maintained a nearly continuous, high-end rotational vorticity signature, averaging for approximately four hours and twenty minutes, a rarity among thunderstorms that produce mesocyclonic vorticity (averaging 1.5% of all supercells). The only velocities below the average recorded along the storm track were observed between 8:44 and 9:01 p.m. CST [02:44–3:01 UTC] as the storm crossed from Obion County, Tennessee, into Hickman County, Kentucky. This time frame coincides with the start of the Western Kentucky tornado, implying the supercell underwent a mesocyclone re-strengthening phase during this period. During this intense tornado's lifetime, peak gate-to-gate velocities of were recorded at 9:58 p.m. CST (04:58 UTC) over northeastern Marshall County, Kentucky. Elsewhere, multiple lines of intense storms, some with embedded supercells, developed across the Mississippi Valley region through the night, and generated other strong, long-lived tornadoes. By the pre-dawn hours of December 11, a decrease in instability led to a gradual weakening of a line of thunderstorms along the associated cold front from eastern Kentucky southward into central Alabama. The SPC issued a record-setting 43 mesoscale discussions (MCDs) between 12:00 p.m. UTC December 10 and 12:00 p.m. UTC December 11, all of which were associated with the broader storm system. Thirty-eight of these were convective discussions relating to severe thunderstorm activity, and five were non-convective discussions relating to heavy snow associated with the system that concurrently fell across much of the Upper Midwest. Through the night, the National Weather Service (NWS) issued 149 tornado warnings across Arkansas, Tennessee, Missouri, Mississippi, Kentucky, Illinois, and Indiana. ==Tornado summary==
Tornado summary
Formation and rapid strengthening The tornado touched down in Woodland Mills in Obion County, Tennessee, along Woodland Mills Road at 8:54 p.m. CST (02:54 UTC). It was produced by the same supercell that had produced another violent long-tracked tornado that affected northeast Arkansas, the Missouri Bootheel, and northwest Tennessee. After the dissipation of that tornado in Obion County northeast of Samburg, the supercell produced three weak, brief tornadoes before the Western Kentucky tornado formed several miles to the northeast. Farther to the northeast, the tornado reached EF2 strength, tearing roofs off homes, damaging or destroying outbuildings, damaging irrigation equipment, and ripping apart trailer homes. Soon after, the tornado became violent and directly impacted the small community of Cayce at low-end EF4 intensity, where homes and small businesses were damaged or destroyed, some of which were leveled or swept from their foundations. A music venue in a former school building was badly damaged, and the Cayce Volunteer Fire Department building was destroyed; the metal beams of the structure were severely twisted as pieces of heavy machinery were tossed around. Several outbuildings and mobile homes were also destroyed. One person died in Cayce and several others were injured. After moving to the northeast of Cayce, the tornado weakened but remained strong as it moved at EF3 intensity through rural areas to the northeast of the town, destroying barns and a cell tower, and tearing the roof and exterior walls from a house. The tornado moved into Hickman County and appeared to dramatically intensify as it crossed US 51, where extreme ground scouring occurred in nearby fields. The tornado scoured trenches into the ground, removing all grass and several inches of topsoil in the worst-affected areas. No structures were impacted near US 51 and no rating was applied to the scouring. EF3 damage continued past this point as homes and metal truss towers were destroyed. EF2 damage was noted as it tracked into Graves County, closely paralleling Purchase Parkway and US 45, and moving directly toward the city of Mayfield. The roof of a house along KY 339 was torn off, and many trees and power poles were downed in this area. Mayfield The National Weather Service issued a tornado emergency for Mayfield at 9:26 p.m. CST (03:26 UTC) as the now massive wedge tornado approached the town from the southwest. The large, metal-framed warehouse building collapsed, trapping employees, and resulting in eight deaths and numerous injuries. Most of the structures in downtown Mayfield were heavily damaged or destroyed, including large, well-built, multi-story, brick buildings that collapsed. Only large piles of bricks and lumber remained in the hardest-hit portions of the downtown area, and streets were left buried under debris. The large, well-constructed Graves County Courthouse had much of its roof torn off, its clock tower collapsed, and some of its exterior upper-floor walls were demolished. Several restaurants, an indoor soccer facility, a barber shop, automotive business, a gym, a bank, a movie theater, a health-and-rehab center, and many other businesses in downtown Mayfield were destroyed. Large metal silos were crumpled and heavily damaged at a granary, and the large Mayfield water tower was toppled and destroyed. The post office, city hall, fire station, and police station were significantly damaged or destroyed, and the emergency operations center lost the ability to transmit radio communications. Twenty-two people were killed in and around Mayfield, and hundreds more were injured, many severely. The tornado's winds peaked at in the city. The tornado then moved into Briensburg at EF2 intensity; houses near and along US 68 sustained partial-to-total roof loss, outbuildings were damaged or destroyed, and a metal truss transmission tower collapsed. Past Briensburg, EF3 damage occurred along Lowery Road, where a poorly anchored house was leveled, and some other homes sustained EF2 damage. before impacting Princeton, the tornado hit and destroyed a Kentucky mesonet station, which recorded winds, setting the new record for the highest-measured wind gust in Kentucky history. In Princeton, dozens of houses along the southern and southeastern fringes of town were destroyed, especially at the Princeton Golf and Country Club subdivision, where several houses were leveled or swept away. The University of Kentucky Research Center was destroyed; metal roof trusses were carried hundreds of yards from the structure and wrapped around trees. Cars were thrown from the parking lot into adjacent fields, metal light poles were ripped from their concrete footings, and ground scouring occurred. In and around Princeton, trees were stripped of their limbs and partially debarked, barns and farm buildings were destroyed, livestock was killed, and cycloidal markings were left in fields outside the town. Four deaths and numerous injuries occurred in Princeton. The tornado then followed US 62, producing EF2 to EF3 damage to homes in the small communities of Lewistown and Midway. Vehicles were thrown into piles in the parking lot of the complex. Several duplexes at Clarkdale Court were destroyed, including one that was leveled with only a pile of debris remaining. An American Legion post and a car wash were flattened, and a church and a medical clinic sustained major damage. Some logistics facilities and warehouses in an industrial park were leveled as the tornado exited the city, as were several metal self-storage-unit buildings and large garages nearby. Fourteen people were killed in the Dawson Springs area and many others were injured. A mother and her two children survived with major injuries by hanging on to a mattress as they were thrown through the air into a field after the tornado swept their Dawson Springs home from its foundation after crushing them underneath it first. A photograph from a destroyed house in Dawson Springs was lofted and transported almost by the intense tornadic updrafts, eventually being found in New Albany, Indiana. Beyond Dawson Springs, the tornado tracked to the northeast, passing north of Ilsley and through the rural community of Carbondale, weakening slightly to high-end EF3 strength but continuing to cause major damage. Farm outbuildings and mobile homes were demolished, and houses sustained major damage or were destroyed. Additional high-end EF3 damage occurred and another tornado emergency was issued as it moved through Barnsley, just south of Earlington and Helca, and just north of Mortons Gap. Almost every house in the small community was damaged or destroyed, including some that were leveled, though they were not well-constructed. Thousands of large trees were downed and vehicles were flipped. Past Barnsley, the tornado crossed over the CSX Cut-Off Main line and I-69 before passing through an unpopulated, swampy area, where large trees were snapped or uprooted, and damage was rated EF2. Eleven people were killed in and around Bremen, and others were injured. Among the fatalities was District Judge Brian Crick, who represented Muhlenberg and McLean counties, as confirmed in a statement from the Supreme Court of Kentucky on December 11. After the tornado left Bremen, some weakening occurred; it crossed US 431 south of Stroud, where some houses and mobile homes were damaged or destroyed, and hundreds of large trees were snapped and denuded. Damage in this area was rated EF2 to low-end EF3. The last area of EF3-strength damage occurred along KY 69 and Utley Drive northeast of Hartford, where a poorly anchored, block-foundation home was swept away and destroyed, and other houses lost their roofs and exterior walls. Two anchored mobile homes were swept away and destroyed, with their frames tossed and bent, and one was thrown . An RV camper in this area was thrown , landing upside down; tractors and hay bales were also thrown considerable distances. On January 23, 2025, Anthony W. Lyza with the National Severe Storms Laboratory along with Harold E. Brooks and Makenzie J. Kroca with the University of Oklahoma published a paper where they stated the tornado in Mayfield was an "EF5 candidate" and opined that the EF5 starting wind speed should be instead of . == Impacts ==
Impacts
The tornado reached a peak width of and was on the ground for nearly three hours, tracking from Woodland Mills to Rough River Dam State Resort Park. It was rated high-end EF4 with an estimated peak wind speed of , Casualties The tornado directly killed 57 people and resulted in 519 injuries; it was the deadliest tornado ever recorded in the United States in the month of December, and the deadliest tornado since the Joplin, Missouri tornado on May 22, 2011. In Marshall County, containing the heavily damaged community of Cambridge Shores, 356 structures were destroyed or made uninhabitable, and 341 more sustained light or moderate damage. ==Response and recovery==
Response and recovery
On December 11, 2021, Kentucky governor Andy Beshear declared a state of emergency for parts of western Kentucky; it was followed that day by U.S. president Joe Biden's approval of a federal emergency disaster declaration for the state of Kentucky. The NWS office in Paducah requested mental-health officers be present to assist meteorologists for potential trauma from assessing the tornado's path of devastation. On December 12, Federal Emergency Management Agency (FEMA) Administrator Deanne Criswell and U.S. Department of Homeland Security Secretary Alejandro Mayorkas visited areas of Graves and Marshall counties, met with emergency management officials and responders, and held a media briefing with Governor Beshear. Their visit was followed on December 15 by a visit from President Biden, who flew to Kentucky and toured Mayfield and Dawson Springs, meeting survivors. Describing the damage as "almost beyond belief", Biden announced that the disaster declaration had been amended to have the federal government pay the entire cost of debris removal, and overtime for law enforcement and emergency personnel for the next month. The tornado's major impacts on Graves County Court operations, which included the destruction of the courthouse in Mayfield, led the Kentucky Supreme Court to suspend the county's court operations, including physical and electronic court filings, between December 13, 2021, and January 11, 2022. The Mayfield Messenger, the city's main newspaper, began printing an extra 2,000 copies per printing run of its paper, distributing them for free around the city. By February 14, 2022, the U.S. Army Corps of Engineers had cleared more than of debris in Graves County, including Mayfield; by April 4, that number had risen to of debris removed in Mayfield and in total from Graves County. By May 2022, the Tennessee Valley Authority and the environmental nonprofit Living Lands and Waters, using excavators, barges, and volunteers, had removed of tornado debris from Kentucky Lake. Objects found included entire docks, cars, kayaks, and personal effects. Relief Governor Beshear's administration created the Team Western Kentucky Tornado Relief Fund, which received approximately 150,000 individual donations for a total of $52 million. Disaster-relief and humanitarian groups such as the American Red Cross, The Salvation Army, and World Vision collected donations and provided aid. More than 4,500 people attended a tornado relief concert in August 2022. In 2024, the City of Mayfield was awarded $31.5 million in federal-and-state grants to help rebuild roads in its downtown area. The U.S. Department of Transportation awarded the city $25 million through its Rebuilding American Infrastructure with Sustainability and Equity (RAISE) grant program. That money, along with $6.3 million in state transportation funding and $200,000 from other federal grants, was to be used to reconstruct around of high-traffic thoroughfares in the Graves County seat. Rebuilding In June 2022, Mayfield City Council put several blocks in the city's heavily impacted downtown under a building permit freeze as they decided how to rebuild in the area, before rezoning the area in December 2022 for "less restrictive" commercial and residential mixed-use development. In December 2022, a temporary memorial was placed in the Mayfield court square. In February 2023, Mayfield mayor Kathy O'Nan visited Louisville, Mississippi, which was struck by a devastating EF4 tornado in 2014, to tour the damage path and speak with city leaders about the rebuilding process and funding sources. Mayfield candle factory lawsuit The Mayfield Consumer Products candle factory building collapsed, causing eight deaths and numerous injuries. Workers said management told them: "if you leave, you're more than likely to be fired". On December 17, it was reported multiple workers at the candle factory filed a lawsuit against Mayfield Consumer Products in state court, seeking compensation and punitive damages. The lawsuit alleged the factory had up to three-and-a-half hours to let workers leave as safety precautions and did not, and the company showed a "flagrant indifference to the rights of workers" and violated the Kentucky occupational safety and health workplace standards by refusing evacuations. The following January, the factory closed and Mayfield Consumer Products laid off approximately 250 workers there, shifting operations and the remaining workers to a new plant in the nearby town of Hickory. On December 8, 2022, a second lawsuit was filed against Mayfield Consumer Products on behalf of three workers who were killed in the candle factory collapse and seven who survived. The lawsuit alleged "false imprisonment, intentional infliction of emotional distress and violation of Kentucky statutory law". ==See also==
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