May 1960 tornado outbreak sequence explained

Tornado outbreak sequence of May 4–6, 1960
Affected:	Midwestern and Southern United States, primarily Oklahoma and Arkansas
Casualties:	33 fatalities, 302 injuries
Tornado Duration:	2 days, 1 hour, 50 minutes
Fujitascale:	F5
Tornadoes:	71 confirmed
Enhanced:	no
Active:	May 4–6, 1960
Damages:	$32.618 million (1960 USD) $ (USD)
Type:	Tornado outbreak sequence
Partof:	the tornadoes and tornado outbreaks of 1960

On May 4–6, 1960, a large tornado outbreak sequence affected parts of the Midwestern and Southern United States. The severe weather event produced at least 71 confirmed tornadoes, including five violent tornadoes in the U.S. state of Oklahoma. Major tornado activity began on the afternoon of May 4, with strong tornadoes affecting the Red River Valley and the Dallas-Fort Worth Metroplex. Two tornadoes struck parts of southern Oklahoma, causing significant damage to the Konawa and Soper areas. In all, at least 22 tornadoes formed between the early afternoon and late evening hours, with two more tornadoes forming early on May 5, shortly after midnight CDT. A much more significant tornado outbreak began on the afternoon of May 5 and continued overnight, spreading from eastern Oklahoma into portions of southern Missouri and Central Arkansas. At least 35 tornadoes developed between 6:00 a.m. CST on May 5–6, including a long-tracked F5 that struck rural areas in Northeastern Oklahoma and killed five people. Two other tornadoes killed 21 people in and near Sequoyah County in the eastern portion of the state. Other strong tornadoes affected the Little Rock metropolitan area early on May 6 in Arkansas. In all, the tornado outbreak sequence killed 33 people and injured 302.

Background

**Outbreak death toll**^[1]
State	Total	County	County total
Arkansas	1	Conway	1
Oklahoma	32	Creek	5
Haskell	3
Latimer	13
McIntosh	2
Okmulgee	2
Sequoyah	7
All deaths were tornado-related

^[2]

Confirmed tornadoes

May 4 event

List of confirmed tornadoes – May 4, 1960
	Location	County	Time (UTC)	Path length	Damage
Texas
bgcolor=#	F0	W of Matador	Motley	2040	0.1miles	Funnel sighted, but only hit unpopulated land.^[3]
bgcolor=#	F2	W of Dublin	Erath	0010	0.3miles	Two roofs damaged. The tornado is not listed as significant by tornado researcher Thomas P. Grazulis.^[4]
bgcolor=#	F1	SW of Dublin	Erath	0020	0.2miles	A brick dairy farm and a garage were destroyed. Some roof damage occurred as well.
bgcolor=#	F0	NE of Mineral Wells	Palo Pinto	0120	1miles	Brief touchdown with numerous other funnels observed nearby.
bgcolor=#	F3	E of Lake Worth to NE of Blue Mound	Tarrant	0120	7.4miles	Eight homes were seriously damaged and five entirely destroyed. Two of the homes lost all except their interior walls.
bgcolor=#	F1	NE of Garner	Parker	0300	1.5miles	Major damage to farm machinery, outbuildings, and a home.
bgcolor=#	F1	S of Flower Mound	Denton	0400	2miles	Five minor injuries to people in a trailer home. The tornado was rated F2 by Grazulis.
bgcolor=#	F1	S of Sulphur Springs	Hopkins	0515	1miles	Two barns were destroyed, two others damaged, and two homes unroofed during "widespread" thunderstorms. The tornado was rated F2 by Grazulis.
Oklahoma
bgcolor=#	F1	SW of Grandfield	Tillman	2340	1miles	Trees were uprooted and one home damaged.^[5]
bgcolor=#	F1	S of Grandfield	Tillman	2340	1miles	Only damaged outbuildings.
bgcolor=#	F2	N of Walters	Cotton	0000	4.9miles	Storm hit the western edge of town. The tornado is not listed as significant by Grazulis.
bgcolor=#	F1	E of Medicine Park	Comanche	0030	0.1miles	Three people were injured as a tornado unroofed a barn and destroyed two trailers.
bgcolor=#	F1	S of Temple	Cotton	0043	0.1miles	Brief touchdown.
bgcolor=#	F1	SW of Central High	Comanche	0045	0.1miles	Two outbuildings destroyed and a home unroofed.
bgcolor=#	F3	E of Marlow	Stephens	0058	0.1miles	One home was shifted off its foundation and severely damaged. The tornado may have moved concrete blocks 100yd from a gas station. The tornado was rated F2 by Grazulis.
bgcolor=#	F2	Noble area	Cleveland	0145	5.2miles	A restaurant and a barn were destroyed in Noble. The tornado also damaged a house and a gas station.
bgcolor=#	F3	NW of Ada to NE of Konawa	Pontotoc	0145	10miles	A large wedge tornado injured five people as it destroyed three homes and damaged 12.
bgcolor=#	F3	E of Bethany to N of The Village	Oklahoma	0155	5.1miles	A tornado destroyed 12 homes and damaged 25. It then struck and damaged a new terminal at Tulakes Airport.
bgcolor=#	F4	W of Konawa	Pottawatomie, Seminole	0205	8miles	Four farms were destroyed and a newly built home "completely swept away".
bgcolor=#	F4	S of Soper to S of Snow	Choctaw, Pushmataha	0316	30.8miles	A third of Soper was destroyed, including two farms and "up to 100 homes." Two farms were also damaged near Snow. The path near Snow may have been that of a separate tornado.
Kansas
bgcolor=#	F?	N of Edson to NW of Brewster (1st tornado)	Sherman	2320	7miles
bgcolor=#	F?	SW of Arnold	Ness	2343	6miles
bgcolor=#	F2	W of Brownell	Ness	2345	0.1miles	Brief tornado coincided with significant hail-related damage to crops. The tornado is not listed as significant by Grazulis.
bgcolor=#	F?	N of Edson (2nd tornado)	Sherman	0030	unknown
Arkansas
bgcolor=#	F2	W of Amagon	Jackson	0300	1miles	A shed was destroyed and a house damaged. The tornado is not listed as significant by Grazulis.
Sources:, Storm Data

May 5 event

List of confirmed tornadoes – May 5, 1960
	Location	County	Time (UTC)	Path length	Damage
Texas
bgcolor=#	F2	E of Marshall	Harrison	0700	1.3miles	Trees were damaged and a vehicle overturned. The tornado is not listed as significant by Grazulis.
bgcolor=#	F0	SW of Carrollton	Dallas	0400	0.1miles	Brief touchdown reported.
bgcolor=#	F0	NE of Addison	Dallas	0437	0.1miles	Only hit one building and caused minor damage.
Arkansas
bgcolor=#	F2	Enola	Faulkner	1000	0.8miles	A home and a barn were destroyed. Two other buildings were damaged. The tornado is not listed as significant by Grazulis.
bgcolor=#	F2	NW of Winslow to Elkins	Washington	0330	16.9miles	Formed south of West Fork. Six homes and three stores were damaged in the Blackburn community. Only one home was completely destroyed.
bgcolor=#	F2	NE of Goshen to Alabam	Madison	0445	13.2miles	Farm homes and outbuildings were entirely destroyed.
bgcolor=#	F2	NW of Scotia	Johnson	0530	2miles	A brief tornado destroyed three homes. The tornado is not listed as significant by Grazulis.
Alabama
bgcolor=#	F1	NW of Chunchula to SE of Satsuma	Mobile	1300	11.5miles	Thousands of trees were downed and many homes and other structures were damaged.
Oklahoma
bgcolor=#	F?	S of Frederick	Tillman	1938	unknown
bgcolor=#	F3	NE of Wallville to NE of Maysville	Garvin	2045	7.3miles	One frame home was destroyed, a few trailers, a general store, and a church were destroyed in the Wallville area. The tornado also damaged farms and a pipe yard near Maysville. The parent supercell produced the next event below.
bgcolor=#	F3	NE of Wayne to W of Sand Springs	Cleveland, Pottawatomie, Lincoln, Creek, Tulsa	2100	101.9miles	A long-lived tornado family destroyed five homes and hit a cemetery near Corbett, then destroyed two more homes and an oil tank in Tribbey. Six homes were hit in Depew and two more were destroyed west of Bristow. Near the end of the path, three homes and a trailer were destroyed.
bgcolor=#	F5	S of Shawnee to Prague to Iron Post to NE of Sapulpa	Pottawatomie, Seminole, Lincoln, Okfuskee, Creek	2300	71.8miles	5 deaths — A huge and intense, barrel-like "white" tornado destroyed 14 farms from near Prague to near Paden. Damage was $750,000 to an oil refinery northeast of Prague. Near Iron Post, homes were swept away.^[6] The tornado then destroyed 100 homes and killed three people in northwest Sapulpa before lifting and being seen over Tulsa.
bgcolor=#	F2	McAlester	Pittsburgh	0007	4.1miles	Most damage was at the rooftop level. One 208feet radio tower was reportedly "snapped off". The tornado is not listed as significant by Grazulis.
bgcolor=#	F3	S of Hoffman	Okmulgee	0016	0.8miles	2 deaths — About 25 homes were destroyed, some of which were swept away. Even underbrush was cleared from the homesites in south Hoffman. Grazulis gave this an F4 rating.
bgcolor=#	F2	SE of Haskell	Muskogee	0020	4.9miles	Most damage from hail up to 2inches in diameter. The tornado is not listed as significant by Grazulis.
bgcolor=#	F2	NE of Vinita to W of Loma Linda, Missouri	Craig, Ottawa	0030	36.6miles	A large tornado nearly leveled a newly built brick farmhouse, leaving only one wall standing. The tornado also destroyed "two truckloads of boats" on the Will Rogers Turnpike, injuring two drivers. This tornado destroyed many farms and may have been an F3 in intensity.
bgcolor=#	F2	S of Wynnewood	Garvin	0100	5.9miles	"General damage" was observed near Wynnewood, with two homes, a barn, and a warehouse having been unroofed.
bgcolor=#	F4	S of Wilburton to SW of Sallisaw	Latimer, Haskell, Sequoyah	0110	62.4miles	16 deaths — A major tornado family caused severe damage to 15 square blocks^[7] in Wilburton, destroying 82 homes and damaging or destroying 600 structures. Thirteen people died as the tornado family hit Wilburton. The tornado family then destroyed six more homes north of Wilburton, 25 in Keota, and 10 more near Sallisaw.
bgcolor=#	F2	E of Eufaula to NE of Texanna	McIntosh	0110	11.7miles	2 deaths — Three homes were reported destroyed and six others damaged. All deaths and injuries were in vehicles. This tornado may have been an F3.
bgcolor=#	F2	SW of Wagoner	Wagoner	0120	5.1miles	A tornado destroyed seven homes, many businesses, and a radio tower in western Wagoner.
bgcolor=#	F1	S of Tiawah	Rogers	0130	0.1miles	Outbuildings were destroyed on a farm.
bgcolor=#	F3	W of Moffett	Sequoyah	0130	4.5miles	1 death — Pavement was torn from U.S. Route 64, several homes were destroyed, and a truck driver was killed.
bgcolor=#	F4	SW of Roland	Sequoyah	0140	5.4miles	5 deaths — One home was swept away and two trucks carried 300sigfig=3NaNsigfig=3. Three of the occupants were injured and five people died in the home that was swept away.
bgcolor=#	F1	NE of Park Hill to NW of Briggs	Cherokee	0240	4.6miles	A home, two stores, and numerous trees were damaged.
bgcolor=#	F2	Eufaula	McIntosh	0250	1miles	This was the second tornado to hit near Eufaula. 12 homes were damaged.
bgcolor=#	F2	NW of Langley to SW of Cleora	Mayes	0300	6.4miles	A tornado destroyed 12 cabins and three homes. A store, a church, and a school were also destroyed.
bgcolor=#	F3	SE of Bokoshe to NW of Akins	Le Flore, Sequoyah	0330	23.7miles	1 death — This was the fourth F3+ tornado to hit Sequoyah County this day. Numerous homes were destroyed and a woman was killed in one of them. Some of the homes were reportedly swept away.
Nebraska
bgcolor=#	F?	Leigh	Colfax	2230	unknown
Missouri
bgcolor=#	F0	NE of Urbana	Dallas	2250	0.2miles	Two outbuildings were unroofed.
Iowa
bgcolor=#	F2	SE of Carroll to N of Scranton	Carroll, Greene	0100	13.8miles	Destroyed homes and barns along a skipping path.
bgcolor=#	F1	SE of Dallas Center	Dallas	0330	1miles	$10,000 damage to farms was estimated.
Sources:, Storm Data

May 6 event

List of confirmed tornadoes – May 6, 1960
	Location	County	Time (UTC)	Path length	Damage
Missouri
bgcolor=#	F1	Macks Creek	Camden	0630	0.2miles	There was damage to many farms and trees.
bgcolor=#	F2	SW of Ava	Christian	0645	5.7miles	A tornado struck eight farms and shifted one home on its foundation. Many other homes and barns were heavily damaged. This tornado may have been an F3.
Arkansas
bgcolor=#	F3	NW of Toad Suck to S of Enders	Conway, Faulkner	0700	26.7miles	1 death — Developed west of Conway, in the Portland Bottoms area. The tornado then hit Menifee, destroying a large school complex, 31 houses, a pair of churches, a post office, and 32 other structures. Much damage was also reported in Greenbrier. 30 people were injured.
bgcolor=#	F2	NE of Austin to E of Choctaw	Van Buren	0730	8.2miles	A tornado destroyed a small home.
bgcolor=#	F1	W of Cammack Village	Pulaski	0735	3.3miles	A tornado damaged many homes and trees in west Little Rock.
bgcolor=#	F2	College Station	Pulaski	0800	10.3miles	A tornado passed 3miles southeast of Little Rock, unroofing structures, destroying barns, and damaging homes.
bgcolor=#	F2	W of Prescott	Nevada	0815	2.6miles	A tornado uprooted many trees and destroyed three homes. It also destroyed a cotton gin and a garage. Other garages, outbuildings, and 60 other homes were reported damaged. Two people were injured.
bgcolor=#	F2	NE of Kingsland to NW of Glendale	Cleveland, Lincoln	0915	19.3miles	A tornado destroyed one home near the end of its path. A nearby high school was badly damaged.
bgcolor=#	F2	S of Antioch to E of Searcy	White	2000	14.6miles	A tornado unroofed or damaged many homes and businesses in the business district of Searcy.
bgcolor=#	F1	W of Dell to NW of Yarbro	Mississippi	2200	14miles	A tornado skipped through the Blytheville area, causing minor damage to farms, small buildings, roofs, and windows. It, or another member of its tornado family, may have touched down in Pemiscot County, Missouri. It was attended by approximately 15 funnel clouds, eight of which may have been brief tornadoes.
Illinois
bgcolor=#	F1	SE of Flora	Clay	1430	1miles	An airport hangar was damaged.
bgcolor=#	F1	E of Long Creek	Macon	1540	0.3miles	Three farms were damaged.
bgcolor=#	F1	E of Carrollton to NW of Chatham	Greene, Macoupin, Morgan, Sangamon	1905	43.5miles	Isolated patches of scattered damage were reported.
bgcolor=#	F2	W of Loxa to NE of Oakland	Coles, Douglas	2230	20.9miles	Only one barn and grain bins were destroyed.
Mississippi
bgcolor=#	F1	Lexie to S of Kokomo	Walthall	1930	12.3miles	A tornado destroyed five homes and eight other buildings. Twenty homes were severely damaged. The tornado may have been an F2 rather than an F1.
Sources:, Storm Data

Notes

Notes and References

National Weather Service. National Weather Service. April 2020. Events reported between 05/04/1960 and 05/06/1960 (3 days). Storm Events Database. National Centers for Environmental Information. 13 August 2020.
Web site: North America Tornado Cases 1960 to 1969 . bangladeshtornadoes.org . 21 April 2022.
Storm Data and Unusual Weather Phenomena. Storm Data. May 1960. 2. United States Department of Commerce. Asheville, North Carolina.
Book: Grazulis . Thomas P. . Thomas P. Grazulis . Significant Tornadoes 1680–1991: A Chronology and Analysis of Events . July 1993 . The Tornado Project of Environmental Films . . 1-879362-03-1 . 1026 .
Storm Data and Unusual Weather Phenomena. Storm Data. June 1960. 2. United States Department of Commerce. Asheville, North Carolina.
Book: Grazulis, Thomas P. . Thomas P. Grazulis . F5-F6 Tornadoes . The Tornado Project . 2001 . St. Johnsbury, Vermont .
News: 28 dead, 200 hurt in tornado areas. New York Times. May 6, 1960. The Associated Press. 48.