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Hurricane Carla tornado outbreak

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Hurricane Carla tornado outbreak
Radar image showing Hurricane Carla approaching landfall in Port O'Connor, Texas as seen from WSR-57 in Galveston, Texas.
TypeTornado outbreak
DurationSeptember 10–13, 1961
Tornadoes
confirmed		21
Max. rating1F4 tornado
Duration of
tornado outbreak2		3 days, 2 hours, 10 minutes
Fatalities14 fatalities, 337 injuries
Damage≥$3.461 million[1]
Areas affectedSouthern United States, Midwest

1Most severe tornado damage; see Fujita scale
2Time from first tornado to last tornado

Hurricane Carla triggered a destructive and deadly outbreak of 21 tornadoes in Alabama, Louisiana, Texas, Arkansas, and Michigan that occurred from September 10–13, 1961. A total of 11 tornadoes touched down in Louisiana, and eight more in Texas. The strongest tornado of the outbreak was a 1 mile (1.6 km) long, 100 yards (91 m) wide F4 tornado that moved across Galveston Island in the early morning hours of Tuesday, September 12, 1961, killing eight people. This was the first of only two known violent tornadoes ever spawned by a hurricane with the other one happening during Hurricane Hilda in 1964. By the time it was over, the outbreak had killed 14 people, injured 337 others, and caused over $3.461 million in damage.

Meteorological synopsis

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Map plotting the track and the intensity of Hurricane Carla, according to the Saffir–Simpson scale.

As Hurricane Carla moved northwestward over the Gulf of Mexico on September 10, its outer rainbands began to spread over the Gulf Coast. Favorable shear profiles led to scattered tornadoes touching down across the region, including an F3 tornado that caused numerous casualties in Kaplan, Louisiana. More tornadoes touched down the next day as the system made landfall in Port O'Connor, Texas at peak intensity with 145 miles per hour (233 km/h) winds and a pressure of 931 mbar (27.5 inHg). September 12 was the worst day of the outbreak with six significant (F2+) tornadoes touching down, including a violent F4 tornado in Galveston, Texas and an intense F3 tornado in Jonesboro, Louisiana, causing widespread destruction and 250 casualties. By September 13, a weaker Tropical Storm Carla was accelerating northward into Canada. Some scattered tornado activity occurred on this day before the outbreak came to an end.[2][3]

Confirmed tornadoes

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Confirmed tornadoes by Fujita rating
FU F0 F1 F2 F3 F4 F5 Total
0 1 6 6 7 1 0 21

September 10 event

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Confirmed tornadoes – Sunday, September 10, 1961[nb 1][nb 2]
F# Location County / Parish State Start
coord. 		Time (UTC) Path length Max. width Summary
F1 Alabama Port Mobile AL 35°09′N 89°55′W / 35.15°N 89.92°W / 35.15; -89.92 (Alabama Port (September 10, F1)) 20:55–? 0.5 miles (0.80 km) 10 yards (9.1 m) A waterspout moved northwestward over Mobile Bay before moving ashore, damaging two homes and a store. Losses totaled $2,500.[2][5]
F3 Kaplan to Cossinade Vermilion LA 30°00′N 92°18′W / 30.00°N 92.30°W / 30.00; -92.30 (Kaplan (September 10, F3)) 22:50–? 5.7 miles (9.2 km) 283 yards (259 m) 1 death – This intense tornado touched down just outside of Kaplan and caused heavy damage as it moved over 21 blocks of the town. A total of 21 homes were destroyed while 55 others were damaged. It moved almost due north after that, passing near the town of Cossinade before dissipating. In all, 73 homes were destroyed or extensively damaged, while 175 others received minimal damage. A total of 55 people were injured and damage was estimated at $2.5 million.[6][7][8]
F1 NE of Intracoastal City Vermilion LA 29°48′N 92°06′W / 29.8°N 92.1°W / 29.8; -92.1 (Intracoastal City (September 10, F1)) 00:09–? 2 miles (3.2 km) 100 yards (91 m) Tornado moved through sparsely populated areas, causing $25,000.[6][9]
F1 S of Gueydan Vermilion LA 29°42′N 91°12′W / 29.70°N 91.20°W / 29.70; -91.20 (Gueydan (September 10, F1)) 00:12–? 1 mile (1.6 km) 100 yards (91 m) Tornado moved through sparsely populated areas, causing $25,000 in damage.[6][10]
F2 Downtown Morgan City St. Mary LA 29°42′N 91°12′W / 29.70°N 91.20°W / 29.70; -91.20 (Downtown Morgan City (September 10, F2)) 04:20–? 1 mile (1.6 km) 100 yards (91 m) Approximately 55 homes were unroofed or otherwise damaged. Losses totaled $25,000 and 16 people were injured.[6][11][8]
F1 N of Patterson St. Mary LA 29°42′N 91°18′W / 29.7°N 91.3°W / 29.7; -91.3 (Patterson (September 10, F1)) 04:20–? 0.3 miles (0.48 km) 100 yards (91 m) Damage was estimated at $2,500.[6][12]

September 11 event

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Confirmed tornadoes – Monday, September 11, 1961[nb 1][nb 2]
F# Location County / Parish State Start
coord. 		Time (UTC) Path length Max. width Summary
F1 SE of Oldfield Livingston LA 30°36′N 90°47′W / 30.6°N 90.78°W / 30.6; -90.78 (Oldfield (September 11, F1) 17:10–? 3.6 miles (5.8 km) 100 yards (91 m) Tornado caused heavy tree damage with losses totaling $250,000.[6][13]
F2 Alton to N of Colt St. Tammany LA 30°20′N 89°46′W / 30.33°N 89.77°W / 30.33; -89.77 (Alton (September 11, F2)) 17:30–? 4.3 miles (6.9 km) 100 yards (91 m) Strong tornado destroyed small homes as it moved west along the north side of Slidell. Two people were injured and damage was estimated at $25,000.[6][14][8]
F2 Van Vleck Matagorda TX 29°00′N 95°54′W / 29°N 95.9°W / 29; -95.9 (Van Vleck (September 11, F2)) 17:47–? 0.4 miles (0.64 km) 50 yards (46 m) Several buildings were damaged and two radio towers were destroyed northeast of Bay City. No damage estimate was given.[2][15]
F0 Springfield Tangipahoa, Livingston LA 30°26′N 90°30′W / 30.43°N 90.5°W / 30.43; -90.5 (Springfield (September 11, F0)) 19:00–? 5.6 miles (9.0 km) 100 yards (91 m) Tornado moved west, passing south of Rosaryville and Pumpkin Center before crossing the Natalbany River and moving through Springfield. There was $25,000 in damage.[6][16]
F3 Southern Jacksonville Cherokee TX 31°55′N 95°17′W / 31.92°N 95.28°W / 31.92; -95.28 (Southern Jacksonville (September 11, F3)) 19:20–? 0.1 miles (0.16 km) 10 yards (9.1 m) Four homes were damaged, including one that was destroyed. Three people were injured and losses totaled $25,000. Grazulis classified the tornado as an F2.[2][17][8]
F3 Channelview Harris TX 29°46′N 95°08′W / 29.77°N 95.13°W / 29.77; -95.13 (Channelview (September 11, F3)) 23:50–? 1 mile (1.6 km) 83 yards (76 m) Six commercial buildings and approximately 18 homes were destroyed by this intense tornado. At least 40 additional homes were damaged as well. Cars were tossed up to 100 yd (91 m). A total of 22 people were injured and losses totaled $200,000.[2][18][8]

September 12 event

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Confirmed tornadoes – Tuesday, September 12, 1961[nb 1][nb 2]
F# Location County / Parish State Start
coord. 		Time (UTC) Path length Max. width Summary
F4 Galveston (1st tornado) Galveston TX 29°19′N 94°47′W / 29.32°N 94.78°W / 29.32; -94.78 (Galveston (September 12, F4)) 09:15–? 1 mile (1.6 km) 100 yards (91 m) 8 deaths – This rare, violent tornado caused widespread destruction between 19th and 25th Street. 200 buildings suffered severe damage, including 60-75 that were destroyed, although no damage estimate was given. Several homes in the path of the tornado in Galveston were leveled to the ground, but hurricane-force winds may have weakened the structures beforehand. 200 people were injured. This tornado was the first of only two violent F4 tornadoes ever spawned by a tropical cyclone with the other coming from Hurricane Hilda in 1964.[2][8][19]
F3 Galveston (2nd tornado) Galveston TX 29°16′N 94°52′W / 29.27°N 94.87°W / 29.27; -94.87 (Galveston (September 12, F3)) 12:00–? 2 miles (3.2 km) 10 yards (9.1 m) Strong tornado caused extensive damage to several commercial buildings and other structures and destroyed six homes, although no monetary damage value was given. Grazulis classified the tornado as an F2.[2][8][20]
F3 Hardin Liberty TX 30°09′N 94°44′W / 30.15°N 94.73°W / 30.15; -94.73 (Hardin (September 12, F3)) 16:30–? 0.5 miles (0.80 km) 17 yards (16 m) Six homes were damaged, although no damage value was given.[2][21]
F3 Jonesboro to Hodge Jackson LA 32°14′N 92°42′W / 32.23°N 92.70°W / 32.23; -92.70 (Jonesboro (September 12, F3)) 19:00–? 2 miles (3.2 km) 400 yards (370 m) 5 deaths – This devastating tornado, which was the largest of the outbreak, impacted Jonesboro before reaching its peak intensity when it moved through Hodge. Approximately 75 homes were severely damaged with 20 of them being destroyed, while 115 others received minimal damage before the tornado quickly dissipated. A total of 37 people were injured and damage was estimated at $250,000.[6][22][23]
F2 S of Taylortown, LA to Blanchard Springs, AR Union (LA), Union (AR) LA, AR 32°58′N 92°36′W / 32.97°N 92.6°W / 32.97; -92.6 (Taylortown (September 12, F2)) 21:00–? 7.1 miles (11.4 km) 100 yards (91 m) Tornado caused some damage in Rum Center, Louisiana before moving into Arkansas east of Junction City, Louisiana and Junction City, Arkansas, where several homes, barns, and other structures were destroyed or otherwise damaged. Losses were estimated at $50,000.[6][2][24][25][26]
F3 NW of Fulbright Red River TX 33°34′N 95°16′W / 33.57°N 95.27°W / 33.57; -95.27 (Fulbright (September 12, F3)) 21:45–? 0.5 miles (0.80 km) 300 yards (270 m) Several structures were impacted by this intense tornado, although no damage estimate was given. The tornado destroyed five homes. Grazulis classified the tornado as an F2.[2][24][27]

September 13 event

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Confirmed tornadoes – Wednesday, September 13, 1961[nb 1][nb 2]
F# Location County / Parish State Start
coord. 		Time (UTC) Path length Max. width Summary
F1 E of Roy Bienville LA 32°13′N 93°07′W / 32.22°N 93.12°W / 32.22; -93.12 (Roy (September 13, F1)) 14:30–? 0.3 miles (0.48 km) 100 yards (91 m) Weak tornado occurred southeast of Castor, causing $250 in damage.[6][28]
F2 Acme to Williamsburg to N of Kalkaska Grand Traverse, Kalkaska MI 44°46′N 85°30′W / 44.77°N 85.50°W / 44.77; -85.50 (Acme (September 13, F2)) 20:12–? 14.4 miles (23.2 km) 10 yards (9.1 m) Strong tornado touched down on the eastern shore of Grand Traverse Bay east of Traverse City and northeast of Fivemile Corner and moved due east. Multiple homes were damaged and numerous trees uprooted, including several cherry trees. Losses totaled $25,000.[2][29]
F2 Latex Harrison TX 32°22′N 94°06′W / 32.37°N 94.10°W / 32.37; -94.10 (Latex (September 13, F2)) 23:05–? 0.1 miles (0.16 km) 10 yards (9.1 m) Two homes and three garages were damaged. Two people were injured and losses totaled $5,000. The NCDC says the tornado caused $2,500 in damage.[2][30]

See also

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Notes

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  1. ^ a b c d 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.
  2. ^ a b c d Prior to 1994, only the average widths of tornado paths were officially listed.[4]

References

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  1. ^ "Tornado Summaries". National Weather Service. National Centers for Environmental Information. Retrieved 14 August 2020.
  2. ^ a b c d e f g h i j k l Luther Hodges. Storm Data and Unusual Weather Phenomena: December 1961 (PDF). United States Department of Commerce (Report). Asheville, North Carolina: National Climatic Data Center; National Oceanic and Atmospheric Administration. p. 120. Archived from the original (PDF) on February 1, 2014. Retrieved 14 August 2020.
  3. ^ "Hurricane Carla Aftermath, no. 1". Texas Archive of the Moving Image. Retrieved 14 August 2020.
  4. ^ 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. Bibcode:2004WtFor..19..310B. doi:10.1175/1520-0434(2004)019<0310:OTROTP>2.0.CO;2.
  5. ^ Alabama Event Report: F1 Tornado. National Weather Service (Report). National Centers for Environmental Information. Retrieved 15 August 2020.
  6. ^ a b c d e f g h i j k "Storm Data Publication | IPS | National Climatic Data Center (NCDC)". www.ncdc.noaa.gov. Retrieved 16 August 2020.
  7. ^ Louisiana Event Report: F3 Tornado. National Weather Service (Report). National Centers for Environmental Information. Retrieved 16 August 2020.
  8. ^ a b c d e f g 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. 1038. ISBN 1-879362-03-1.
  9. ^ Louisiana Event Report: F1 Tornado. National Weather Service (Report). National Centers for Environmental Information. Retrieved 16 August 2020.
  10. ^ Louisiana Event Report: F1 Tornado. National Weather Service (Report). National Centers for Environmental Information. Retrieved 16 August 2020.
  11. ^ Louisiana Event Report: F2 Tornado. National Weather Service (Report). National Centers for Environmental Information. Retrieved 16 August 2020.
  12. ^ Louisiana Event Report: F1 Tornado. National Weather Service (Report). National Centers for Environmental Information. Retrieved 16 August 2020.
  13. ^ Louisiana Event Report: F1 Tornado. National Weather Service (Report). National Centers for Environmental Information. Retrieved 16 August 2020.
  14. ^ Louisiana Event Report: F2 Tornado. National Weather Service (Report). National Centers for Environmental Information. Retrieved 16 August 2020.
  15. ^ Texas Event Report: F2 Tornado. National Weather Service (Report). National Centers for Environmental Information. Retrieved 17 August 2020.
  16. ^ Louisiana Event Report: F0 Tornado. National Weather Service (Report). National Centers for Environmental Information. Retrieved 17 August 2020.
  17. ^ Texas Event Report: F3 Tornado. National Weather Service (Report). National Center for Environmental Information. Retrieved 17 August 2020.
  18. ^ Texas Event Report: F3 Tornado. National Weather Service (Report). National Center of Environmental Information. Retrieved 17 August 2020.
  19. ^ Texas Event Report: F4 Tornado. www.ncdc.noaa.gov (Report). Retrieved August 2, 2020.
  20. ^ Texas Event Report: F3 Tornado. National Weather Service (Report). National Center for Environmental Information. Retrieved 17 August 2020.
  21. ^ Texas Event Report: F3 Tornado. National Weather Service (Report). National Center for Environmental Information. Retrieved 17 August 2020.
  22. ^ Grazulis 1993, pp. 1038–9
  23. ^ Louisiana Event Report: F3 Tornado. National Weather Service (Report). National Center for Environmental Information. Retrieved 17 August 2020.
  24. ^ a b Grazulis 1993, p. 1039
  25. ^ Louisiana Event Report: F2 Tornado. National Weather Service (Report). National Center for Environmental Information. Retrieved 17 August 2020.
  26. ^ Arkansas Event Report: F2 Tornado. National Weather Service (Report). National Center for Environmental Information. Retrieved 17 August 2020.
  27. ^ Texas Event Report: F3 Tornado. National Weather Service (Report). National Center for Environmental Information. Retrieved 17 August 2020.
  28. ^ Louisiana Event Report: F1 Tornado. National Weather Service (Report). National Center for Environmental Information. Retrieved 17 August 2020.
  29. ^ Michigan Event Report: F2 Tornado. National Weather Service (Report). National Center for Environmental Information. Retrieved 17 August 2020.
  30. ^ Texas Event Report: F2 Tornado. National Weather Service (Report). National Center for Environmental Information. Retrieved 17 August 2020.
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