The Mayfield, Kentucky tornado of December 10, 2021

EF4  Tennessee and western Kentucky · surveyed by NWS Paducah · the deadliest December tornado on record

It was on the ground for nearly three hours on a December night, ran 165 miles, and killed 57 people. It reached Mayfield at half past nine in the evening, in the dark, out of season, in a town where roughly a third of people lived below the poverty line. For days afterwards the death toll was expected to pass a hundred, driven almost entirely by a candle factory where 110 people were working the night shift. The toll went down instead, and the reason it had been wrong is its own small story.

Rating

EF4 190 mph estimated

Deaths

57 plus 1 indirect

Injuries

519

Path length

165.6 mi 9th longest on record

Max width

2,600 yd 1.5 mi

On the ground

2 h 54 m 8:54–11:48 pm CST

Reached Mayfield

9:26 pm in darkness

Graves County

24 deaths, 200+ injured

Structures

4,000+ damaged or destroyed

Radar

KPAH full dual-pol

Not one tornado

For a while this was going to be the longest-tracked tornado in history. Early estimates put the "Quad-State tornado" at more than 250 miles on the ground, which would have beaten the 1925 Tri-State tornado's 219. The damage surveys found otherwise: the majority of that path was two separate EF4 tornadoes, with three weaker, short-lived tornadoes between them in northwestern Obion County, Tennessee.^[3]

What this page covers is the second and larger of those two: 165.6 miles from Woodland Mills, Tennessee to Rough River Dam State Resort Park, Kentucky, which is still the ninth longest tornado path ever recorded in the United States.^[1] The correction matters because a 250-mile continuous tornado would have been a genuinely new kind of event, and it did not happen. Two very long-tracked violent tornadoes from the same supercell family is extraordinary enough.

The deaths were spread the length of it: 24 in Graves County, which contains Mayfield; 15 in Hopkins County around Dawson Springs; 11 in Muhlenberg County near Bremen; 4 in Caldwell County; and one each in Fulton, Marshall and Lyon.^[3]

December, at night

The outbreak produced 71 tornadoes, a December record, and killed 89 people, more than doubling the previous worst December on record.^[4] Tornadoes in the middle of December are not unheard of, but an outbreak of this size and violence was outside what anyone in western Kentucky had planned around. Fox Weather reported that eight tornado warnings were issued for Mayfield that night, more than the town had received in the previous twenty-one years combined.^[5]

It was also dark. The tornado reached Mayfield at 9:26 pm.^[1] The peer-reviewed work on this is unambiguous about what that costs: nocturnal tornadoes "enhance vulnerability because they are difficult to spot and occur when the public tends to be asleep and in weak building structures," and although only 27.3 percent of tornadoes from 1950 to 2005 were nocturnal, they produced 39.3 percent of the deaths.^[6] That study's sharpest statistic, that overnight tornadoes are two and a half times as likely to kill, applies to the window from local midnight to sunrise rather than to half past nine, so it does not attach directly here. The mechanism does.

The radar record

KPAH at Paducah is about 30 miles northwest of Mayfield, and by 2021 the network was fully modernised: super-resolution, dual-polarisation, the complete volume. This is the same radar and the same night that this site's own decoder is tested against, because the velocity couplet here is one of the cleanest ever recorded.

The candle factory

Mayfield Consumer Products was running a night shift with about 110 people inside when the building was destroyed. For three days the expected toll there was catastrophic. Governor Andy Beshear estimated the statewide death count at 80 and said it was certain to pass 100, an estimate built almost entirely on the assumption that scores had died in the factory.^[7]

On December 13 a company spokesman said that of the 110, eight were confirmed dead and eight remained missing. "There were some early reports that as many as 70 could be dead in the factory," he said. "One is too many, but we thank God that the number is turning out to be far, far fewer."^[7]

The explanation for the error is mundane and human. More than 90 of the 110 were eventually located. Many had sheltered, walked out of a flattened building, and gone home without telling anyone, so they were logged as missing and presumed buried under a collapse that looked unsurvivable.^[8] The final count is carried as eight by the contemporaneous record, Reuters, CBS and the state safety review; some later reporting says nine, and no source explains the difference.

What happened inside is contested and has been litigated. Workers alleged that they asked to leave or to shelter and that managers threatened their jobs; the company called that "absolutely untrue," saying employees could leave any time.^[9] A suit filed in December 2022 on behalf of three dead workers and seven survivors claimed false imprisonment and intentional infliction of emotional distress, alleging management "repeatedly threatened to terminate" employees who tried to leave despite at least three hours of notice, and that shelter provision amounted to one hallway and two restrooms for 110 people. The company's counsel said it had complied with federal and state law, which requires employers to ensure employees shelter in place during hazardous weather.^[10] Kentucky's occupational safety division reviewed the deaths and issued $40,000 in fines for seven violations. The outcome of the lawsuits is not something we could verify.

The factory closed in January 2022, laid off about 250 workers and moved operations to Hickory. The Mayfield plant never reopened, and residents hold an annual memorial walk around the site.^[3][5]

The town

Mayfield has a population of about 10,000. The tornado took the courthouse roof and clock tower, collapsed three large churches including the domed roof of First Christian and the thick masonry sanctuary walls of First United Methodist, and destroyed or badly damaged the post office, city hall, the fire station and the police station. The emergency operations centre lost radio transmission. Most of downtown's multi-storey brick buildings collapsed, leaving "only large piles of bricks and lumber" in the worst parts.^[3] Across the whole path more than 4,000 structures were damaged or destroyed, 3,778 of them homes.

The town was poor before this happened, with roughly 35 percent of residents below the poverty line and a median household income a little over $36,000, and the housing it lost was disproportionately rented. A local realtor estimated that upward of 75 percent of the destroyed units were rental housing.^[11] That shapes everything about the recovery below.

The EF5 question

It was rated EF4 at 190 mph, and there has been sustained argument that it should have been higher or that the threshold itself is wrong. The rating "might have been higher had more wind resistant structures been encountered," and the tornado's speed meant little dwell time over any one building.^[3] One expert quoted in that discussion called it the closest thing to an EF5 since Moore in 2013, while noting that many of the buildings it hit "were horribly constructed and could not resist 100 or even 150 mph wind let alone 200 mph," which makes it impossible to know whether EF5 winds occurred.

In January 2025 researchers labelled Mayfield an EF5 candidate and argued the EF5 threshold should drop from 201 mph to 190.^[3] That is the same argument, arriving from a different direction, as the one on the El Reno page: a scale that reads wind speed backwards out of broken buildings will systematically under-rate tornadoes that cross places with nothing well-built in them.

Recovery

A federal disaster declaration was approved on December 11, the day after. FEMA sent 30,000 meals and 45,000 litres of water, more than 300 National Guard members went door to door, and President Biden toured Mayfield on December 15. The state relief fund took about 150,000 donations totalling $52 million.^[3]

Housing has been the hard part, and predictably so given how much of what was lost was rented. A year on, a former downtown hospital that had held 61 apartments for elderly residents was being replaced with fifteen; the housing authority had more than 700 requests for one-bedroom units; and many landlords were uninsured or underinsured. Samaritan's Purse built around sixty homes on the edge of town, gifted specifically to former renters, and a nonprofit called Camp Graves put families in transitional trailers.^[11]

"Everyone needs to be looking at the next couple of years for everybody that has been affected. Because it's going to take that long to be able to recover from this, and I don't think we'll ever recover mentally from it."

Makayla Puckett, Mayfield resident, November 2022^[11]

Three years on, downtown reconstruction was only beginning: the courthouse foundation had recently been laid, and there had been groundbreaking ceremonies for city hall, the police station and the firehouse. People were still displaced. Mayfield was awarded $31.5 million in federal and state grants in 2024 for downtown road reconstruction.^[5][3] Whether those civic buildings are finished as of the fourth anniversary is not something we were able to confirm.

Videos

Related

El Reno, on the same argument about what the EF scale can and cannot measure · Joplin, the last US tornado to kill more people · All tornado profiles · Search the radar archive by date and time

Sources