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User:ChessEric/Tornado outbreak sequence of August 8–10, 1969

< User:ChessEric
Tornado outbreak sequence August 8–10, 1969
TypeTornado outbreak sequence
DurationAugust 8–10, 1969
Tornadoes
confirmed		21
Fatalities4 fatalities; 257 injuries
Damage$3.958 million (1969 USD)[1]
Areas affectedGreat Plains, Northeastern United States, Midwest, Southeastern United States

An tornado outbreak sequence[nb 1] of at least 21 tornadoes struck the Great Plains, Northeast, Midwest, and Southeast during August 8-10, 1969.[3] The worst tornado was a powerful, devastating and deadly F3 tornado that struck Cincinnati, Ohio on Saturday, August 9, 1969, at 6:57pm.[4][5][6][7][8][9][10] The tornado caused all 4 deaths of the tornado outbreak, making it the deadliest outbreak in the state of Ohio that year.[11][12] August 9 would also prove to have unusually active severe weather in Indiana, as 5 tornadoes touched down in the state. At the time, this was the most August tornadoes in a single weather event in the state, a record it would hold until 2016 (it is currently ranked third). [13] The outbreak also caused 257 injuries, and $3.958 million in damages.

Meteorological synopsis edit

Weather systems, coming from the west, began impacting the Great Plains and Midwest on August 8, moving into the Eastern United States by August 9. It brought multiple rounds of tornadoes, hail, other forms of severe weather into these regions before ending on August 10.[14]

Confirmed tornadoes edit

Confirmed tornadoes by Fujita rating
FU F0 F1 F2 F3 F4 F5 Total
0 6 5 6 2 0 0 21

August 8 event edit

List of confirmed tornadoes – Friday, August 8, 1969[nb 2][nb 3]
F# Location County / Parish State Start
coord. 		Time (UTC) Path length Max. width Summary
F2 Nashville Davison, Hanson, McCook SD 43°42′N 98°00′W / 43.70°N 98.00°W / 43.70; -98.00 (Nashville (August 8, F2)) 00:45–? 34.3 miles (55.2 km) 33 yards (30 m) One person were injured. Damages were estimated at $25,000.[16]
F1 E of Millington Woodbury IA 42°30′N 96°26′W / 42.50°N 96.43°W / 42.50; -96.43 (Sioux City (August 8, F1)) 02:24–? 0.1 miles (0.16 km) 27 yards (25 m) Damages were estimated at $25,000.[17]
F1 N of Kensington Woodbury IA 42°31′N 96°23′W / 42.52°N 96.38°W / 42.52; -96.38 (Sioux City (August 8, F1)) 02:25–? 3.0 miles (4.8 km) 27 yards (25 m) Damages were estimated at $25,000.[18]
F0 E of Mountain Valley Union SD 42°36′N 99°36′W / 42.60°N 99.60°W / 42.60; -99.60 (Mountain Valley (August 8, F0)) 03:00–? 0.1 miles (0.16 km) 33 yards (30 m) [19]
F1 Nashville Knox ME 44°00′N 69°06′W / 44.00°N 69.10°W / 44.00; -69.10 (Nashville (August 8, F1)) 04:00–? 1.0 mile (1.6 km) 50 yards (46 m) Damages were estimated at $25,000.[20]
F2 E of Millington Buena Vista IA 42°37′N 95°12′W / 42.62°N 95.20°W / 42.62; -95.20 (Millington (August 8, F2)) 04:00–? 2 miles (3.2 km) 70 yards (64 m) Damages were estimated at $250,000.[21]
F1 N of Kensington Stanley SD 44°39′N 101°02′W / 44.65°N 101.03°W / 44.65; -101.03 (Kensington (August 8, F1)) 05:35–? 0.1 miles (0.16 km) 33 yards (30 m) Three people were injured. Damages were estimated at $25,000.[22]

August 9 event edit

List of confirmed tornadoes – Saturday, August 9, 1969[nb 2][nb 3]
F# Location County / Parish State Start
coord. 		Time (UTC) Path length Max. width Summary
F3 N of Velma Marion IN 39°49′N 86°13′W / 39.82°N 86.22°W / 39.82; -86.22 (Velma (August 9, F3)) 11:35–? 0.1 miles (0.16 km) 167 yards (153 m) Six people were injured. Damages were estimated at $250,000.[23]
F0 NE of Hiawatha Union IL 37°25′N 89°12′W / 37.42°N 89.20°W / 37.42; -89.20 (Hiawatha (August 9, F0)) 21:28–? 0.1 miles (0.16 km) 33 yards (30 m) Damages were estimated at $2,500.[24]
F2 SW of Pauls Valley to WSW of Byars Shelby IN 39°39′N 85°53′W / 39.65°N 85.88°W / 39.65; -85.88 (Shelbyville (August 9, F2)) 21:30–? 0.1 miles (0.16 km) 33 yards (30 m) Damages were estimated at $250,000.[25]
F0 Ada to WNW of Francis Kosciusko IN 41°25′N 85°45′W / 41.42°N 85.75°W / 41.42; -85.75 (Syracuse (August 9, F0)) 21:45–? 0.1 miles (0.16 km) 33 yards (30 m) [26]
F2 NNE of Corley Franklin IN 39°25′N 85°00′W / 39.42°N 85.00°W / 39.42; -85.00 (Corley (August 9, F2)) 22:30–? 0.7 miles (1.1 km) 33 yards (30 m) Damages were estimated at $25,000.[27]
F3 ESE of Morrison Bluff Hamilton, Clermont OH 39°13′N 84°31′W / 39.22°N 84.52°W / 39.22; -84.52 (Cincinnati (August 9, F3)) 22:57–? 22.2 miles (35.7 km) 400 yards (370 m) 4 deaths - See section on this tornado 247 people were injured. Damages were estimated at $2.5 million.[7][8][28]
F2 N of Marble Falls to NE of Harrison Daviess IN 38°40′N 87°02′W / 38.67°N 87.03°W / 38.67; -87.03 (Harrison (August 9, F2)) 23:30–? 0.1 miles (0.16 km) 33 yards (30 m) Damages were estimated at $25,000.[29]
F1 NNE of Kalona Putnam WV 38°24′N 82°00′W / 38.4°N 82.0°W / 38.4; -82.0 (Kalona (August 9, F1)) 01:00–? 0.1 miles (0.16 km) 33 yards (30 m) Damages were estimated at $2,500.[30]
F2 NW of Osceola to ENE of Lowry City Fairfax VA 38°52′N 77°14′W / 38.87°N 77.23°W / 38.87; -77.23 (Lowry City (August 9, F2)) 04:15–? 0.1 miles (0.16 km) 33 yards (30 m) Damages were estimated at $250,000.[31]
F0 SSW of Roscoe Jackson MS 30°25′N 88°50′W / 30.42°N 88.83°W / 30.42; -88.83 (Biloxi (August 9, F0)) 05:00–? 0.1 miles (0.16 km) 33 yards (30 m) [32]

August 10 event edit

List of confirmed tornadoes – Sunday, August 10, 1969[nb 2][nb 3]
F# Location County / Parish State Start
coord. 		Time (UTC) Path length Max. width Summary
F0 N of Velma Northumberland VA 37°49′N 76°23′W / 37.82°N 76.38°W / 37.82; -76.38 (Velma (August 10, F0)) 14:00–? 0.1 miles (0.16 km) 23 yards (21 m) Damages were estimated at $250.[33]
F0 NE of Hiawatha Miami–Dade FL 25°54′N 80°27′W / 25.90°N 80.45°W / 25.90; -80.45 (Hiawatha (August 10, F0)) 18:37–? 0.1 miles (0.16 km) 33 yards (30 m) [34]
F1 SW of Pauls Valley to WSW of Byars Broward FL 26°08′N 80°26′W / 26.13°N 80.43°W / 26.13; -80.43 (Weston (August 10, F1)) 19:40–? 0.1 miles (0.16 km) 33 yards (30 m) Damages were estimated at $25,000.[35]
F1 Ada to WNW of Francis Broward FL 26°06′N 80°12′W / 26.1°N 80.2°W / 26.1; -80.2 (Davie (August 10, F1)) 20:28–? 0.1 miles (0.16 km) 33 yards (30 m) Damages were estimated at $2,500.[36]

Cincinnati, Ohio edit

Cincinnati, Ohio
F3 tornado
Max. rating1F3 tornado
Fatalities4 fatalities, 247 injuries
Damage$2.5 million (1969 USD)
Areas affectedCincinnati metropolitan area
1Most severe tornado damage; see Fujita scale

In the early evening hours of Saturday, August 9, the tornado formed in the Cincinnati suburb of Wyoming, 8 miles (13 km) north-northeast of Downtown Cincinnati. Moving east–southeast at 40–50 miles per hour (64–80 km/h),[37][38] it traveled through the city's suburban neighborhoods of Hartwell and Roselawn, and the several of its northeastern suburbs, including Reading, Arlington Heights, Golf Manor, and Madeira.[9][39][40] It carved a path through Hamilton and Clermont Counties that was 22 miles (35 km) long and up to 400 yards (370 m) wide. It hit the communities of Milford and Perintown before finally dissipating north of Williamsburg.[9][39]

All the deaths were in Hamilton County, including three members of one family.[4][41][42][10] In Madeira, 30 people were injured when a tent they were in at a church event collapsed on top of them.[42][43][44] The most severe damage, all of the deaths, and the majority of injuries, occurred in the area between Hartwell and Golf Manor.[45][44][39]

Despite it being among the most significant killer tornadoes in the Cincinnati area, it is considered by some to be one of "Cincinnati's Forgotten Tornadoes" due to several other events in the U.S. in August 1969, including the Manson murders (which occurred early that morning) and Hurricane Camille.[10][46][47] In addition, the area was hit by eight significant tornadoes in 1974, 1990, 1999 and 2012, including two tornadoes rated F4 and F5 in 1974 and another one rated F4 in 1999.[48][49]

See also edit

Notes edit

  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]
  2. ^ a b c 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. ^ a b c Prior to 1994, only the average widths of tornado paths were officially listed.[15]

References edit

  1. ^ National Weather Service (March 2020). Tornado Summaries (Report). National Centers for Environmental Information. Retrieved 3 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. ^ "Tornado History Project: Maps and Statistics". www.tornadohistoryproject.com. Retrieved 20 July 2020.
  4. ^ a b Grazulis, Thomas P. (1993). Significant Tornadoes 1680-1991: A Chronology and Analysis of Events. Environmental Films. pp.1107. Retrieved July 28, 2018
  5. ^ "Tornadoes". www.cincinnati-oh.gov. Retrieved July 28, 2018.
  6. ^ "Tornado History Project: Ohio F3". www.tornadohistoryproject.com. Retrieved July 28, 2018.
  7. ^ a b Cite error: The named reference CDNS was invoked but never defined (see the help page).
  8. ^ a b Ohio Event Report: F3 Tornado. National Weather Service (Report). National Centers for Environmental Information. Retrieved April 30, 2024.
  9. ^ a b c Staff, Elizabeth Kane, Cincinnati Enquirer (April 3, 2004) Tornadoes – short lived, but destructive. www.enquirer.com. Retrieved July 28, 2018
  10. ^ a b c "Gallery: 1969 'forgotten' tornado". Cincinnati.com. Retrieved 2019-08-13.
  11. ^ "Tornado History Project: Ohio in 1969". www.tornadohistoryproject.com.
  12. ^ build@alaska.net, Created by The Disaster Center: text, HTML and graphics by Christopher Effgen. "Ohio Tornadoes". www.disastercenter.com. Retrieved July 28, 2018.{{cite web}}: CS1 maint: multiple names: authors list (link)
  13. ^ "Wednesday was One of the Most Active August Tornado Days on Record in the U.S." The Weather Channel. Retrieved July 30, 2020.
  14. ^ "Storm Data Publication | IPS | National Climatic Data Center (NCDC)" (PDF). www.ncdc.noaa.gov. Retrieved July 31, 2020.
  15. ^ Brooks, Harold E. (April 2004). "On the Relationship of Tornado Path Length and Width to Intensity". Weather and Forecasting. 19 (2). Boston: American Meteorological Society: 310. doi:10.1175/1520-0434(2004)019<0310:OTROTP>2.0.CO;2. Retrieved 11 September 2019.{{cite journal}}: CS1 maint: ref duplicates default (link)
  16. ^ https://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=10110940
  17. ^ https://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=10014590
  18. ^ https://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=10014591
  19. ^ https://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=10110946
  20. ^ https://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=10044828
  21. ^ https://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=10014592
  22. ^ https://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=10116394
  23. ^ https://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=10005361
  24. ^ https://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=10008923
  25. ^ https://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=10005362
  26. ^ https://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=10005364
  27. ^ https://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=10005365
  28. ^ https://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=10085481
  29. ^ https://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=10005366
  30. ^ https://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=10149719
  31. ^ https://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=10152942
  32. ^ https://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=10050890
  33. ^ https://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=10152943
  34. ^ https://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=9998168
  35. ^ https://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=9998169
  36. ^ https://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=9998170
  37. ^ "Today in Weather History - AccuWeather.com Forums". forums.accuweather.com. Archived from the original on 29 July 2018. Retrieved 28 July 2018.
  38. ^ Service, US Department of Commerce, NOAA, National Weather. "This Day in Weather History: August 9th". www.weather.gov. Retrieved July 28, 2018.{{cite web}}: CS1 maint: multiple names: authors list (link)
  39. ^ a b c "Wayback Machine" (PDF). web.archive.org. July 29, 2018. Archived from the original (PDF) on 2018-07-29.
  40. ^ "Archived copy". Archived from the original on 2017-09-23. Retrieved 2018-07-28.{{cite web}}: CS1 maint: archived copy as title (link)
  41. ^ knirbneo (30 January 2011). "1969 Cincinnati Tornado". Retrieved July 28, 2018 – via YouTube.
  42. ^ a b Bolten, Brian T. (9 August 2013). "Today in History: AUGUST 9 = Tornado Hits Cincinnati". Retrieved 28 July 2018.
  43. ^ "Cincinnati, OH Tornado, Aug 1969 - GenDisasters ... Genealogy in Tragedy, Disasters, Fires, Floods". www.gendisasters.com. Retrieved July 28, 2018.
  44. ^ a b Cincinnati Enquirer. "Tornado Slams Into Cincinnati; 200 Injured, Damage Is Severe". August 10,1969
  45. ^ Schmidlin, Thomas W.; Schmidlin, Jeanne Appelhans (9 August 1996). "Thunder in the Heartland: A Chronicle of Outstanding Weather Events in Ohio". Kent State University Press. p. 279. Retrieved 9 August 2018 – via Google Books.
  46. ^ "Historical Events in August 1969". OnThisDay.com.
  47. ^ "1969: An eventful summer - CNN.com". www.cnn.com.
  48. ^ Staff, Greg Noble, WCPO (5 April 2018). "From The Vault: Tornadoes bring destruction, death to Tri-State". Archived from the original on 29 July 2018. Retrieved 28 July 2018.{{cite web}}: CS1 maint: multiple names: authors list (link)
  49. ^ Schmidlin, Thomas W.; Schmidlin, Jeanne Appelhans (9 August 1996). "Thunder in the Heartland: A Chronicle of Outstanding Weather Events in Ohio". Kent State University Press. p. 287–288; 296–298. Retrieved 9 August 2018 – via Google Books.
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