Tornado outbreak of April 28–30, 1960

A highly destructive outbreak of 19 tornadoes struck areas from Oklahoma to Indiana.[nb 1] The Oklahoma City metropolitan area took the brunt of the outbreak with 10 F2 or F3 tornadoes touching down in the area alone on April 28, including one F3 tornado that tore directly through Downtown Oklahoma City. The outbreak killed three, injured 79, and caused $3.883 million (1960 USD) in damage.[8]

Tornado outbreak of April 28–30, 1960

Type	Tornado outbreak
Duration	April 28–30, 1960
Tornadoes confirmed	19
Max. rating^1	F3 tornado
Duration of tornado outbreak^2	3 days
Highest winds	85 mph (137 km/h) Will Rogers World Airport in Southwestern Oklahoma City
Largest hail	3.00 in (7.6 cm) Dill City, Oklahoma and Haysville, Kansas
Damage	$3.883 million (1960 USD)[1]
Casualties	3 fatalities, 79 injuries
Areas affected	Great Plains, especially Oklahoma, Midwest, Mississippi Valley
Part of the tornado outbreaks of 1960 ^1Most severe tornado damage; see Fujita scale ^2Time from first tornado to last tornado

Confirmed tornadoes

Confirmed tornadoes by Fujita rating

FU	F0	F1	F2	F3	F4	F5	Total
0	2	4	8	5	0	0	19

April 28 event

List of confirmed tornadoes – Thursday, April 28, 1960[nb 2][nb 3]

F#	Location	County / Parish	State	Start coord.	Time (UTC)	Path length	Max. width	Summary	Refs.
F0	SE of Watonga	Blaine	OK	35.80°N 98.35°W	01:00–?	0.1 miles (0.16 km)	10 yards (9.1 m)	Public reported that one of two funnel clouds touched down briefly over an open field. No damage occurred.	[10][11][12]
F3	SW of Oney	Caddo	OK	35.25°N 98.33°W	01:00–?	3.3 miles (5.3 km)	100 yards (91 m)	Strong tornado destroyed two farmsteads and left only one wall standing of a home south of Binger. Losses totaled $25,000. Only one wall remained standing of a home. Witnesses described the funnel as being the largest they had ever seen.	[10][13][14] [15]
F3	N of Goddard to St. Mark to Western Maize	Sedgwick	KS	37.70°N 97.58°W	01:30–?	7.1 miles (11.4 km)	440 yards (400 m)	Several homes and a church were obliterated by this large, intense tornado. Trees were uprooted, power lines were tangled, livestock was killed, and debris was scattered all over the place. Airborne glass injured six people and damage was estimated at $25,000. High winds and hail up to 3 inches (7.6 cm) in diameter caused additional damage as well. Tornado researcher Thomas P. Grazulis listed this tornado as an F2.	[10][16][17] [15]
F2	SE of Pocasset	Grady	OK	35.17°N 97.95°W	01:45–?	3.6 miles (5.8 km)	200 yards (180 m)	Strong, twin tornadoes passed near Pocasset with this one damaging multiple farmsteads. A house of seven was demolished, although there was only one minor injury. Losses totaled $2,500. This tornado occurred simultaneously with the three other strong events listed below in Grady County. Grazulis did not list this tornado as an F2 or stronger.	[10][18][19] [15]
F2	NE of Amber to ESE of Sooner	Grady	OK	35.18°N 97.85°W	01:45–?	3.3 miles (5.3 km)	200 yards (180 m)	This was the second of the twin tornadoes. Five farmsteads were damaged or destroyed, of which one farmhouse was demolished. Losses totaled $250. The tornado may have traveled all the way to Anadarko, which would be a path length 25 miles (40 km).	[10][20][21] [15]
F3	N of Pocasset to WNW of Sooner	Grady	OK	35.22°N 97.95°W	01:45–?	3.6 miles (5.8 km)	200 yards (180 m)	This intense tornado tore through farmland and severely damaged three farmsteads. The western half of a house was destroyed, injuring two people inside. Losses totaled $25,000. Grazulis listed this tornado as an F2.	[10][22][23] [15]
F2	Southern Pocasset	Grady	OK	35.18°N 97.95°W	01:45–?	2 miles (3.2 km)	300 yards (270 m)	Destructive tornado accompanied by baseball-sized hail hit the south side of Pocasset. The tornado damaged outbuilding, roofs and trees, resulting in $250,000 in damage. The hail broke windows and damaged roofs as well. Nearly every home and building in town had irreparable roof damage. Grazulis did not list this tornado as an F2 or stronger.	[10][24][25] [15]
F3	NW of Tuttle	Grady	OK	35.30°N 97.83°W	02:50–?	1.5 miles (2.4 km)	200 yards (180 m)	Strong tornado bounced through areas northwest of Tuttle, damaging 45-50 homes and destroying four others, including one home where a woman was injured. A school suffered roof damage and the east end of its gym was ripped clean off. Other buildings and a cotton gin were significantly damaged or destroyed as well. Losses totaled $250,000.	[10][26][27] [15]
F3	Southwestern Oklahoma City to Forest Park	Oklahoma	OK	35.42°N 97.55°W	02:55–?	11.7 miles (18.8 km)	333 yards (304 m)	See section on this tornado – A total of 57 people were injured and damages reached $2.5 million.	[10][28][29] [15]
F2	Southwestern Oklahoma City to N of Moore	Cleveland	OK	35.33°N 97.62°W	02:58–?	7.8 miles (12.6 km)	500 yards (460 m)	A strong tornado tore through the South Oklahoma City community. It destroyed 26 planes and four hangers at the South Shields airport while also destroying or severely damaging several farmsteads, a cemetery and several homes and businesses. Damages were estimated at $250,000. Large hail accompanied this storm, destroying crops, breaking windows, and damaging roofs and vehicles.	[10][30][31] [32][15]
F2	N of Etowah	Cleveland	OK	35.17°N 97.18°W	03:00–?	0.1 miles (0.16 km)	10 yards (9.1 m)	Brief, but strong tornado destroyed an oil drilling rig. No monetary damage value was given. Grazulis did not list this tornado as an F2 or stronger.	[10][33][34] [15]
F2	Southwestern Oklahoma City to S of Moore	Cleveland	OK	35.32°N 97.55°W	03:05–?	3.8 miles (6.1 km)	400 yards (370 m)	A second tornado hit the town of Moore shortly after the first. A radio tower and barn southwest of town were destroyed before the tornado caused extensive damage in the town itself. Outbuildings were destroyed and at least 12 buildings were heavily damaged. The storm also produced large hail that damaged crops, broke windows, and damaged roofs and automobiles. Damages were estimated at $250,000 and six people were injured. The NWS Norman says the tornado did $500,000 in damage.	[10][32][35] [36][15]
F2	W of Cromwell to N of Schoolton	Seminole	OK	35.35°N 96.53°W	05:45–?	6.1 miles (9.8 km)	800 yards (730 m)	3 deaths – Large tornado destroyed a farmstead as well as a house, where all three fatalities occurred. Trees, power lines, and several other farmsteads were damaged as well, including one farmstead where a home was shifted off of its foundation, injuring the person in it. Damage was estimated at $25,000. Grazulis listed this tornado as a high-end F3 that caused near-F4 damage.	[10][37][38] [39][15]

April 29 event

List of confirmed tornadoes – Friday, April 29, 1960[nb 2][nb 3]

F#	Location	County / Parish	State	Start coord.	Time (UTC)	Path length	Max. width	Summary	Refs.
F0	N of Blackwell	Kay	OK	36.83°N 97.30°W	20:15–?	0.1 miles (0.16 km)	10 yards (9.1 m)	A tornado over open field was reported by a pilot. No damage occurred.	[10][40][41]
F1	Chanute	Neosho	KS	37.68°N 95.47°W	21:07–?	0.1 miles (0.16 km)	10 yards (9.1 m)	A brief tornado severely damaged a building on the west side of Chanute by ripping off it roof, causing $2,500 in damage.	[10][42][43]
F2	N of Welsh to Raymond to Panchoville to SW of Redich	Jefferson Davis	LA	30.30°N 92.80°W	23:00–?	13.8 miles (22.2 km)	1,667 yards (1,524 m)	Massive tornado was nearly a 1 mile (1.6 km) wide at times. Along with towns it struck, it also hit areas around Hathaway before ending near Redich and Tepetate. One house was destroyed, seven others were significantly damaged, and 12 more had minor damage. Four people were injured and damages were estimated at $25,000.	[10][44][45] [15]
F1	NE of Intracoastal City to New Iberia to Bronson to SW of Portage	Vermilion, Iberia	LA	29.80°N 92.13°W	00:00–?	33.2 miles (53.4 km)	450 yards (410 m)	Weak but long-tracked, large tornado started near Intracoastal City and moved northeastward through marshlands before crossing into Iberia County. Once there, it struck Southeastern Brousville, Southeastern Numa, Western Brannon, New Iberia, Sumerall, Bryant, Daspit, Bronson, and Gondron before dissipating near Portage. The heaviest damage was at a Naval Air Station Facility in New Iberia. Damages were estimated at $250,000.	[10][46][47]

April 30 event

List of known tornadoes – Saturday, April 30, 1960[nb 2][nb 3]

F#	Location	County / Parish	State	Start coord.	Time (UTC)	Path length	Max. width	Summary	Refs.
F1	Atlanta	Logan	IL	37.68°N 95.47°W	13:30–?	0.2 miles (0.32 km)	30 yards (27 m)	Tornado caused moderate damage to a farmstead on the west side of Atlanta before moving into the north side of town and dissipating. Damage was estimated at $2,500.	[10][48][49]
F1	SSW of Morgan Park	Porter	IN	41.60°N 87.05°W	19:00–?	0.1 miles (0.16 km)	10 yards (9.1 m)	Weak tornado uprooted a tree and damaged four automobiles southeast of Chesterton, causing an injury in one of them. Losses were estimated at $30.	[10][50][51]

Oklahoma City–Forest Park, Oklahoma

Oklahoma City–Forest Park, Oklahoma

F3 tornado
Max. rating^1	F3 tornado
Damage	$2.5 million
Casualties	57 injuries
Areas affected	Eastern Oklahoma City metro
^1Most severe tornado damage; see Fujita scale

This very destructive, rain-wrapped F3 tornado embedded within a 3 mi (4.8 km) wide swath of up to 2 in (5.1 cm) hail and straight line winds of nearly 100 miles per hour (160 km/h) first touched down in the Rancho Village community in Southern Oklahoma City. It skipped northeastward, causing heavy damage to homes, businesses, trees, gardens, shrubs, and power lines in the Heronville, Capitol Hill, and Central Capitol Hill neighborhoods. It briefly paralleled the North Canadian River (now known as the Oklahoma River) before crossing it and tearing through the present-day Boathouse District of Southeastern Downtown Oklahoma City, where oil derricks were blown over. The neighborhoods of Carverdale, Edwards Community, Dodson Heights, and Garden Neighborhood Council were then hit as well before the tornado struck Forest Park, Oklahoma. The Rock Manor Estates was heavily damaged before the tornado began to move out of populated areas. It then destroyed some crops before dissipating.[10][28][29]

The tornado traveled 11.7 miles (18.8 km), was 333 yards (304 m) wide, and caused $2.5 million in damage. Two homes were destroyed, 40 others were heavily damaged, and 1,500others had minor damage. There were 57 injuries, only seven of which were minor, with some people only narrowly escaping death. As a whole, the storm itself caused $4 million in damage to the city. This event may have consisted of several small tornadoes or sub-vortices that grazed rooftops.[10][28][29][15]

Non-tornadic impacts

Numerous reports of large hail and destructive straight-line winds were recorded during the three-day outbreak.[52] The strongest winds from the event were clocked at 85 mph (137 km/h) at Will Rogers World Airport in Southwestern Oklahoma City.[53] The largest hail was 3.00 in (7.6 cm), which was recorded in both Dill City, Oklahoma and Haysville, Kansas.[54][55] All three events occurred on April 28.[52]

See also

• List of North American tornadoes and tornado outbreaks
• 1999 Oklahoma tornado outbreak

Notes

1. An outbreak is generally defined as a group of at least six tornadoes (the number sometimes varies slightly according to local climatology) with no more than a six-hour gap between individual tornadoes. An outbreak sequence, prior to (after) the start of modern records in 1950, is defined as a period of no more than two (one) consecutive days without at least one significant (F2 or stronger) tornado.[2][3][4][5][6][7]
2. All dates are based on the local time zone where the tornado touched down; however, all times are in Coordinated Universal Time and dates are split at midnight CST/CDT for consistency.
3. Prior to 1994, only the average widths of tornado paths were officially listed.[9]

References

1. "Tornado Summaries". National Weather Service. National Centers for Environmental Information. Retrieved 11 July 2020.
2. Schneider, Russell S.; Brooks, Harold E.; Schaefer, Joseph T. (2004). Tornado Outbreak Day Sequences: Historic Events and Climatology (1875-2003) (PDF). 22nd Conference on Severe Local Storms. Hyannis, Massachusetts: American Meteorological Society. Retrieved 17 September 2019.
3. Hagemeyer, Bartlett C. (September 1997). "Peninsular Florida Tornado Outbreaks". Weather and Forecasting. Boston: American Meteorological Society. 12 (3): 400. Bibcode:1997WtFor..12..399H. doi:10.1175/1520-0434(1997)012<0399:PFTO>2.0.CO;2.
4. Grazulis 2001, p. 206
5. Hagemeyer 1997, p. 401
6. Hagemeyer, Bartlett C.; Spratt, Scott M. (2002). Written at Melbourne, Florida. Thirty Years After Hurricane Agnes: the Forgotten Florida Tornado Disaster (PDF). 25th Conference on Hurricanes and Tropical Meteorology. San Diego, California: American Meteorological Society. Archived from the original (PDF) on 16 October 2008. Retrieved 24 November 2019.
7. Grazulis, Thomas P. (2001). The Tornado: Nature's Ultimate Windstorm. Norman: University of Oklahoma Press. p. 206. ISBN 978-0-8061-3538-0.
8. "April 1960 Tornadoes". Tornado History Projects. Storm Prediction Center. Retrieved 9 July 2020.
9. Brooks, Harold E. (April 2004). "On the Relationship of Tornado Path Length and Width to Intensity". Weather and Forecasting. Boston: American Meteorological Society. 19 (2): 310. doi:10.1175/1520-0434(2004)019<0310:OTROTP>2.0.CO;2. Retrieved 11 September 2019.
10. "Storm Data Publication | IPS | National Climatic Data Center (NCDC)". www.ncdc.noaa.gov. Retrieved 14 July 2020.
11. "Oklahoma F0". Tornado History Projects. Storm Prediction Center. Retrieved 10 July 2020.
12. Oklahoma Event Report: F0 Tornado. National Weather Service (Report). National Centers for Environmental Information. Retrieved 10 July 2020.
13. "Oklahoma F3". Tornado History Projects. Storm Prediction Center. Retrieved 10 July 2020.
14. Oklahoma Event Report: F3 Tornado. National Weather Service (Report). National Centers for Environmental Information. Retrieved 10 July 2020.
15. Grazulis, Thomas P. (July 1993). Significant Tornadoes 1680–1991: A Chronology and Analysis of Events. St. Johnsbury, Vermont: The Tornado Project of Environmental Films. p. 1026. ISBN 1-879362-03-1.
16. "Kansas F3". Tornado History Projects. Storm Prediction Center. Retrieved 10 July 2020.
17. "Kansas Event Report: F3 Tornado". National Weather Service. National Centers for Environmental Information. Retrieved 10 July 2020.
18. "Oklahoma F2". Tornado History Projects. Storm Prediction Center. Retrieved 10 July 2020.
19. "Oklahoma Event Report: F2 Tornado". National Weather Service. National Centers for Environmental Information. Retrieved 10 July 2020.
20. "Oklahoma F2". Tornado History Projects. Storm Prediction Center. Retrieved 10 July 2020.
21. Oklahoma Event Report: F2 Tornado. National Weather Service (Report). National Centers for Environmental Information. Retrieved 10 July 2020.
22. "Oklahoma F3". Tornado History Projects. Storm Prediction Center. Retrieved 9 July 2020.
23. Oklahoma Event Report: F3 Tornado. National Weather Service (Report). National Centers for Environmental Information. Retrieved 10 July 2020.
24. "Oklahoma F2". Tornado History Projects. Storm Prediction Center. Retrieved 10 July 2020.
25. "Oklahoma Event Report: F2 Tornado". National Weather Service. National Centers for Environmental Information. Retrieved 10 July 2020.
26. "Oklahoma F3". Tornado History Projects. Storm Prediction Center. Retrieved 10 July 2020.
27. Oklahoma Event Report: F3 Tornado. National Weather Service (Report). National Centers for Environmental Information. Retrieved 10 July 2020.
28. "Oklahoma F3". Tornado History Projects. Storm Prediction Center. Retrieved 9 July 2020.
29. "Oklahoma Event Report: F3 Tornado". National Weather Service. National Centers for Environmental Information. Retrieved 10 July 2020.
30. "Oklahoma F2". Tornado History Projects. Storm Prediction Center. Retrieved 10 July 2020.
31. Oklahoma Event Report: F2 Tornado. National Weather Service (Report). National Centers for Environmental Information. Retrieved 10 July 2020.
32. US Department of Commerce, NOAA. "Table of Tornadoes Which Have Occurred in the Oklahoma City, Oklahoma Area Since 1890". www.weather.gov. Retrieved 10 July 2020.
33. "Oklahoma F2". Tornado History Projects. Storm Prediction Center. Retrieved 10 July 2020.
34. Oklahoma Event Report: F2 Tornado. National Weather Service (Report). National Centers for Environmental Information. Retrieved 10 July 2020.
35. "Oklahoma F2". Tornado History Projects. Storm Prediction Center. Retrieved 10 July 2020.
36. Oklahoma Event Report: F2 Tornado. National Weather Service (Report). National Centers for Environmental Information. Retrieved 10 July 2020.
37. "Oklahoma F2". Tornado History Projects. Storm Prediction Center. Retrieved 10 July 2020.
38. Oklahoma Event Report: F2 Tornado. National Weather Service (Report). National Centers for Environmental Information. Retrieved 10 July 2020.
39. US Department of Commerce, NOAA. "Seminole County, OK Tornadoes (1875-Present)". www.weather.gov. Retrieved 10 July 2020.
40. "Oklahoma F0". Tornado History Projects. Storm Prediction Center. Retrieved 10 July 2020.
41. Oklahoma Event Report: F0 Tornado. National Weather Service (Report). National Centers for Environmental Information. Retrieved 10 July 2020.
42. "Kansas F1". Tornado History Projects. Storm Prediction Center. Retrieved 10 July 2020.
43. "Kansas Event Report: F1 Tornado". National Weather Service. National Centers for Environmental Information. Retrieved 10 July 2020.
44. "Louisiana F2". Tornado History Projects. Storm Prediction Center. Retrieved 11 July 2020.
45. "Louisiana Event Report: F2 Tornado". National Weather Service. National Centers for Environmental Information. Retrieved 11 July 2020.
46. "Louisiana F1". Tornado History Projects. Storm Prediction Center. Retrieved 11 July 2020.
47. "Louisiana Event Report: F1 Tornado". National Weather Service. National Centers for Environmental Information. Retrieved 11 July 2020.
48. "Illinois F1". Tornado History Projects. Storm Prediction Center. Retrieved 11 July 2020.
49. "Illinois Event Report: F1 Tornado". National Weather Service. National Centers for Environmental Information. Retrieved 11 July 2020.
50. "Indiana F1". Tornado History Projects. Storm Prediction Center. Retrieved 11 July 2020.
51. "Indiana Event Report: F1 Tornado". National Weather Service. National Centers for Environmental Information. Retrieved 11 July 2020.
52. "Non-Tornadic Impacts". National Weather Service. National Centers for Environmental Information. Retrieved 11 July 2020.
53. Oklahoma Event Report: 74 kts. Thunderstorm Wind. National Weather Service (Report). National Centers for Environmental Information. Retrieved 11 July 2020.
54. "Oklahoma Event Report: 3.00 in. Hail". National Weather Service. National Centers for Environmental Information. Retrieved 11 July 2020.
55. "Kansas Event Report: 3.00 in. Hail". National Weather Service. National Centers for Environmental Information. Retrieved 11 July 2020.