Tornado outbreak of June 7–8, 1984

Template:Short description Template:Use American English Template:Infobox weather event Template:Infobox weather event/Tornado outbreak Template:Infobox weather event/Effects Template:Infobox weather event/Footer On June 7–8, 1984, a significant severe weather event, known as the Barneveld tornado outbreak, took place across the Central United States from North Dakota to Kansas, generating produced several significant tornadoes including an F5 tornado which traveled through Barneveld, Wisconsin, in the early hours of June 8. The entire outbreak killed at least 13 people across three states, including nine in Barneveld alone. Additionally, a long-tracked F4 tornado—most likely a family—crossed the Missouri–Iowa state line on June 7, killing three. During the outbreak intense tornadoes occurred elsewhere in Iowa, as well as in Minnesota and Wisconsin. In all tornadoes injured 322 people.

Meteorological synopsis

A low-pressure system entered the Midwestern United States on June 7, 1984, and intensified while bringing a surge of moist and humid air coming from the Gulf of Mexico. After most of the affected areas were hit by a mesoscale convective complex earlier during the morning of June 7, the unstable atmosphere, as well as wind shear and high convective available potential energy (CAPE), produced a favorable environment for the development of extensive severe weather with possible tornadoes. Starting at around mid-afternoon, it started to produce several tornadoes across southern Minnesota and northwestern and southern Iowa including three F3s and a long-track F4 which traveled over from extreme northern Missouri to southwest of Iowa City. That tornado killed 3 people including one in Missouri's Harrison County. Another person was killed in Ringgold County in Iowa by an F2 tornado at around 9:00pm CDT. Activity continued through the overnight hours as a new cluster of storms developed across Wisconsin near the Iowa–Illinois borders and produced strong tornadoes including the Barneveld tornado up until the early morning hours of June 8, 1984, before dissipating. Straight-line winds in excess of and very large hail were also reported in eastern Iowa from the storm that went on to drop the tornado in Barneveld, Wisconsin.

Confirmed tornadoes

Confirmed tornadoes by Fujita rating

FU	F0	F1	F2	F3	F4	F5	Total
0	4	12	24	4	1	1	46

June 7 event

List of confirmed tornadoes – Thursday, June 7, 1984

F#	Location	County / Parish	State	Start Coord.Template:Efn	Time	Path length	WidthTemplate:Efn	Damage
F2	Moreauville	Avoyelles	LA		06:55–?			Template:Nts
	A brief tornado felled power lines and trees, while wrecking outbuildings and a pair of homes. Three minor injuries occurred.
F1	SW of Moville to SSW of Kingsley	Woodbury, Plymouth	IA		20:45–21:03			Template:Nts
	A tornado badly damaged a trio of barns, along with several outbuildings, but did little damage to farmhouses.
F2	WNW of Quimby to NW of Cherokee	Cherokee	IA		21:14–21:33			Template:Nts
	Striking 15 farms, this tornado damaged outbuildings and downed trees. Tornado expert Thomas P. Grazulis did not rate it F2 or stronger.
F0	S of Carson	Grant	ND		21:30–?			Template:Unk
	This tornado formed briefly over open land, doing no damage.
F2	S of Fairview (KS) to S of Rulo (NE)	Brown	KS		21:33–22:05			Template:Nts
	A strong tornado destroyed or damaged 140 outbuildings, four trailers, and 38 houses, doing its worst damage near Hiawatha. It also tipped four semi-trailer trucks onto their sides, unroofed silos, tore apart farm machinery, rolled hay bales, and injured five people, hospitalizing three.
F2	SSW of Holstein to N of Galva	Ida	IA		21:42–22:10			Template:Nts
	This tornado tore roofing off a few homes and damaged a grain elevator, causing an injury. Grazulis did not rate it F2 or stronger.
F2	WNW of Grant to E of Anita	Cass	IA		21:43–?			Template:Nts
	A strong tornado struck 29 farms, causing severe damage to homes, outbuildings, and farm equipment; it also wrecked a fertilizer plant. Eight people were injured.
F1	S of Primghar to SW of Hartley	O'Brien	IA		22:04–22:15			Template:Nts
	This tornado leveled a century-old barn and downed many trees, while also lifting feed bins, corncribs, hog houses, and milk sheds.
F2	SW of Arthur	Ida	IA		22:10–22:33			Template:Nts
	A tornado tossed a pair of grain bins across a road, one of which smashed the roofs of a few cars, and damaged the roof and interior of a café, injuring one person. Grazulis did not rate it F2 or stronger.
F2	Northern Storm Lake to SE of Truesdale	Buena Vista	IA		22:12–22:20			Template:Nts
	A tornado destroyed outbuildings on several farms and badly damaged homes, injuring three people.
F2	Laurens to Rodman	Pocahontas, Palo Alto	IA		22:17–22:57			Template:Nts
	A multiple-vortex tornado tore the roof off a warehouse, overturned a trailer, severely damaged farmhouses, killed livestock, and destroyed outbuildings. Debris, including glass, pierced carpet and furniture. A few people were injured.
F3	Clarinda to S of Corning	Page, Taylor, Adams	IA		22:20–?			Template:Nts
	An intense tornado damaged 25 homes in northern Clarinda, one of which—a well-built house—it destroyed, along with a trailer. Elsewhere it destroyed 24 outbuildings and sheds as well, while killing livestock. Three people were injured.
F1	N of Everly	Clay	IA		22:23–22:27			Template:Nts
	This tornado superficially damaged homes, affecting exteriors, windows, and roofs; it also hit outbuildings.
F2	Spencer	Clay	IA		22:30–22:32			Template:Nts
	A strong tornado downed power lines and trees, while tearing off the roofs of a few homes. It damaged five homes in all.
F0	W of Burlington	Ward	ND		22:37–?			Template:Unk
	A brief tornado did no known damage.
F2	Havelock to N of Plover	Pocahontas	IA		23:00–23:15			Template:Nts
	This tornado hit three farms, severely impacting outbuildings—sheds, barns, shelters, and bins. Additionally, it tore roofing off a home, while damaging its floors and foundation. It killed 24 pigs as well.
F2	WNW of Hardy to N of Denhart	Humboldt, Kossuth, Hancock	IA		23:15–23:54			Template:Nts
	Along with downbursts, this tornado swept through 40 or more farms, Template:Citation needed span It destroyed a few barns, while damaging outbuildings, equipment, vehicles, bins, and sheds. Grazulis noted a path from Bode to south of Woden.
F3	Burt to S of Lakota	Kossuth	IA		23:15–23:30			Template:Nts
	This tornado inflicted major roof and structural damage on a Presbyterian church. It also caused a school to sustain roof damage and collapsed a wall on its second floor. Besides, it did substantial damage to 25 homes, one of which it shifted off its foundation; destroyed several trailers; and hit a grove of 60 black walnut trees, downing half of them. Five injuries occurred.
F2	SW of Titonka to N of Thompson (1st tornado)	Kossuth, Winnebago	IA		23:29–00:07			Template:Nts
	Passing near German Valley, a tornado damaged the roof of a school, unroofed a nearby home, leveled another, and drove a board into a wall. Papers from one of the houses landed away, in Minnesota. An injury occurred as well.
F2	SW of Crystal Lake to N of Thompson (2nd tornado)	Hancock, Winnebago	IA		23:45–00:18			Template:Nts
	A low-end F2 tornado damaged a school and grain elevator, along with barns, sheds, garages, trees, vehicles, a house, and several trailers. It wrecked a large grain bin as well, and may have hit Forest City, doing more damage there.
F4	SW of Eagleville (MO) to Wright (IA) to Delta (IA) to NW of Amish (IA)	Harrison (MO), Decatur (IA), Wayne (IA), Lucas (IA), Monroe (IA), Mahaska (IA), Keokuk (IA), Iowa (IA)	MO, IA		23:45–02:58			Template:Nts
	3 deaths – See section on this tornado – 64 people were injured.
F0	N of Hamberg	Wells	ND		23:59–?			Template:Unk
	A tornado hit open country.
F1	E of Pawnee City	Pawnee	NE		00:00–?			Template:Nts
	A tornado wrecked three outbuildings.
F1	SW of Albert Lea to S of Manchester	Freeborn	MN		00:15–?			Template:Nts
	A tornado crossed Pickerel Lake, damaging homes, trees, and farm buildings. It struck 13 sites before dissipating.
F3	SE of Albert Lea to S of Clarks Grove	Freeborn	MN		00:19–?			Template:Nts
	An intense tornado destroyed an ambulance station, four businesses, and 13 homes, ripping some houses from their foundations. It also damaged 16 farms, eight businesses, and 52 more homes. A dozen injuries occurred.
F1	E of Waldorf	Waseca	MN		00:20–?			Template:Nts
	A tornado hit a few farms, twisting and downing several large trees.
F1	NNE of Myrtle to W of Ellendale	Freeborn, Steele	MN		00:25–?			Template:Nts
	An intermittent tornado first tracked , hitting four properties. It then briefly lifted, resumed near Hollandale, and ended near Geneva, traveling ; as it did so it wrecked grain bins and a hangar. It then redeveloped near Ellendale, damaging a farmhouse and destroying outbuildings.
F2	SSE of Austin	Mower	MN		00:36–?			Template:Nts
	A strong tornado severely damaged a bowling alley, partly unroofing the structure and causing a wall to collapse. Of the 45 occupants, six were injured. The tornado then crossed a street, wrecking a television repair shop and a home on the other side. It also lofted a truck, injuring its driver, and three automobiles.
F1	E of Lucas	Lucas	IA		00:54–?			Template:Nts
	A brief tornado caused slight damage.
F1	ENE of Douglas	Olmsted	MN		01:15–?			Template:Nts
	A tornado tore apart a barn, dispersing debris , and uplifted another, which it also destroyed. It uprooted trees as well.
F0	NW of Wastedo	Goodhue	MN		00:35–?			Template:Nts
	A tornado felled trees, smashed automobile windows, and unroofed a barn. It also tore a steel post from a road sign, impaling a camper.
F2	S of Mount Ayr to NE of Kellerton	Ringgold	IA		01:45–02:11			Template:Nts
	1 death – A tornado destroyed half a dozen homes and severely damaged 12 others. It also badly damaged a park and mangled a trailer, killing a person inside. Three injuries occurred.
F1	S of Humeston	Wayne	IA		02:33–?			Template:Nts
	A tornado did minor damage to a café.
F2	WNW of Kinross to Windham	Keokuk, Washington, Johnson	IA		02:33–03:13			Template:Nts
	The fourth and final member of the Wright–Delta family only hit rural areas, but caused considerable damage to vehicles, farms, and trees, with losses totaling $2 million. Near Kinross it mostly unroofed a church and shattered its windows. Elsewhere it unroofed a home and drove boards into its walls. At Windham it damaged 13 buildings. An injury occurred.
F2	Northern Stanley to S of Lublin	Chippewa, Clark	WI		03:00–?			Template:Nts
	A tornado flattened four barns, split a silo, and destroyed a pair of machine sheds, while doing some home damage. It also felled or snapped large trees, including 13 in a lot.
F2	N of Howard	Miner	SD		03:00–?			Template:Nts
	A tornado unroofed an antique shop, shattered windows, and tore up signage, along with trees. It also damaged a truck and an automobile dealership. Grazulis did not rate it F2 or stronger.
F2	SSW of Altamont	Daviess	MO		03:30–?			Template:Nts
	A tornado splintered a row of power poles, badly damaged agriculture, and slightly damaged structures. Grazulis did not rate it F2 or stronger.
F2	Jamesport	Daviess	MO		04:00–?			Template:Nts
	A tornado destroyed or damaged trailers, farm buildings, and homes, while lacerating a woman's leg.
F1	Hill	Price	WI		04:30–?			Template:Nts
	A tornado dislodged a barn, blew off a silo cover, and wrecked a toolshed. It also felled a large tree, damaging a trailer beneath.

June 8 event

List of confirmed tornadoes – Friday, June 8, 1984

F#	Location	County / Parish	State	Start Coord.Template:Efn	Time	Path length	WidthTemplate:Efn	Damage
F2	S of Belmont to E of Mineral Point	Lafayette, Iowa	WI		05:30–?			Template:Nts
	A tornado unroofed a house and tore off its chimney, while felling 20 trees. It also wrecked sheds, a barn, and a garage.
F5	SSW of Ridgeway to Barneveld to Black Earth to SE of Lodi	Iowa, Dane	WI		05:41–06:40			Template:Nts
	9 deaths – See section on this tornado – 200 people were injured.
F2	DeForest to SSW of South Randolph	Dane, Columbia	WI		06:10–?			Template:Nts
	A tornado felled trees, tore roofs off a few homes, and destroyed 22 of 24 grain bins.
F2	NW of Arlington to Rio	Columbia	WI		06:25–?			Template:Nts
	A tornado wrecked sheds, farm buildings, three silos, a garage, and a barn.
F3	N of Rio to Markesan	Columbia, Green Lake	WI		06:41–?			Template:Nts
	An intense tornado destroyed an entire farm—house, trailer, and outbuildings—near Cambria, injuring a person, and flattened half a dozen barns elsewhere. It also downed trees and pinned 10 cows beneath debris.
F1	N of East Bristol to E of Doylestown	Columbia	WI		06:49–?			Template:Nts
	A tornado unroofed a barn, destroyed an outbuilding, and felled many trees.
F2	SW of Leipsig to SE of Beaver Dam to Burnett	Dodge	WI		07:17–?			≥Template:Nts
	A strong tornado destroyed a few garages, three barns, and a business, damaging 30 buildings in all. It also substantially damaged five homes and injured a person.

Eagleville, Missouri/Wright–Delta, Iowa

The first member of a long-tracked, violent tornado family wrecked a trailer in Harrison County, Missouri, killing a man and injuring his wife. The tornado badly damaged farms countywide, destroying many barns and farmhouses. It inflicted F3 damage in Missouri before entering Decatur County, Iowa, and striking Nine Eagles State Park. It destroyed a farmhouse near Leon, causing an injury, and wrecked buildings on 17 farms in Wayne County. Near Corydon it leveled half a motel, along with a truck stop. In all it caused $1,750,000 in losses in Wayne County, injuring half a dozen people there. Near Cambria it headed north, tearing loose a portion of a drive-in theater screen and carrying it to Derby. It was seen aloft near Cariton, Lucas County, just before dissipating, having tracked and injured 10 people. The next member of the family formed over Allerton and ended west of Albia, tracking . A narrow vortex, the funnel was compared to a yo-yo. Hitting Monroe County, it destroyed or damaged 100 farm buildings and did $500,000 in losses there. Causing F2 damage, it also injured three people: a few in a mobile home and another in a barn.

The third and strongest member of the family formed in Mahaska County near Eddyville and headed northeast, striking the small community of Wright. The tornado tore apart two of the 25 homes there and badly damaged the rest. It also destroyed a church, bank, and community center in town, leaving only a few buildings undamaged. According to Storm Data, between Delta and Wright it reduced farmhouses "to piles of rubble", one of which it moved , while flattening outbuildings. In Mahaska County it caused $3.4 million in losses. Entering Keokuk County, it left $25 million in damages there, delivering its worst impacts to northwestern Delta, where Grazulis assessed "near-F5" damage; farms southwest of town received similarly intense damage. In Delta it severely damaged or destroyed an ice-cream vendor, grocery, savings bank, beauty salon, and feed store. Across Keokuk County it badly damaged or destroyed 200 homes, flattened 600 farm buildings, extensively damaged farm equipment, killed 800 cattle and hogs, and hurled an automobile over , fatally ejecting a couple inside. Near South English it lofted a home before dissipating, having traveled and injured 51 people.

Barneveld–Black Earth, Wisconsin

Template:Infobox weather eventTemplate:Infobox weather event/TornadoTemplate:Infobox weather event/Effects Template:Infobox weather event/Footer This extremely violent, nocturnal tornado formed near Ridgeway, destroying farm buildings near touchdown. Quickly intensifying, the tornado then widened and hit Barneveld, wrecking about 90% of the village. Only a loud thunderclap alerted residents, for lightning strikes had cut power, disabling tornado sirens. (In actuality, the town did not have a tornado siren that differed from the siren used to activate the town's volunteer fire and emergency management squad. If the siren had been activated, the residents would not have known it was a tornado warning.) In Barneveld the tornado destroyed 170 of the 225 buildings, including 17 of 18 businesses, along with 93 homes, a fire station, a bank, a post office, a library, and three churches (the Congregational United Church of Christ, the Lutheran Church, and the Roman Catholic Church). In addition, it badly damaged 64 other homes and swept away several new ones, indicating F5 damage on a cul-de-sac in a subdivision. According to the National Weather Service, it left "only the foundation" on some homesites. In Barneveld it killed nine people and injured 197 others; the latter represented a third of the population. According to Storm Data, debris in Barneveld was lofted a "considerable distance" and pickup trucks were carried at least . The village's water tower, though damaged, was not toppled by the winds.

The tornado also tore apart 24 more homes between Barneveld and Black Earth. Striking Black Earth, it damaged 16 homes, besides many farm buildings, and destroyed eight, causing three injuries. It later hit the Lodi area, downing trees, damaging five homes, and destroying sheds, along with a few barns, before dissipating. Paperwork from Barneveld was carried . The National Weather Service in Madison reported that the frequency of lightning flashes in the storm exceeded 200 per minute. The flashes produced a strobe-like effect, as mentioned in media reports and books about the disaster. The Barneveld tornado is one of three F5s to hit Wisconsin since 1950, the others being the 1958 Colfax and 1996 Oakfield events. While 26 years had elapsed since the last Wisconsin F5, an F5 tornado in the United States occurred a few years prior, near Broken Bow, Oklahoma, in April 1982 and injured 29 people.

Historical perspective

Outbreak death toll

State	Total	County	County total
Iowa	3	Keokuk	1
		Mahaska	1
		Ringgold	1
Missouri	1	Harrison	1
Wisconsin	9	Iowa	9
Totals	13
All deaths were tornado-related

The Barneveld tornado became the most recent F5/EF5 tornado to touch down at night. Group members prior to Barneveld included the Blackwell, Oklahoma, and Udall, Kansas, tornadoes during the 1955 Great Plains tornado outbreak; the tornado that struck downtown Lubbock, Texas, in 1970; and the Tanner and Guin, Alabama, tornadoes from the 1974 Super Outbreak. Later, the Birmingham tornado in April 1998 and the Greensburg tornado in May 2007 also joined that group of violent nighttime tornadoes.

See also

• List of North American tornadoes and tornado outbreaks
• List of F5, EF5, and IF5 tornadoes