Hurricane Hilda tornado outbreak

On October 3–4, 1964, Hurricane Hilda and its remnants generated a tornado outbreak over portions of the Southeastern United States. The outbreak, which yielded at least 12 confirmed tornadoes, killed 22 people and injured 175 others. Most of the casualties occurred as a result of a violent tornado that devastated the northern outskirts of Larose, Louisiana, becoming the deadliest hurricane-generated tornado on record since 1900 and one of only two violent tornadoes (F4+) recorded in the southern Gulf Coast region of Louisiana. The tornado was also one of only two F4s known to have been produced by a tropical cyclone, the other having occurred during Hurricane Carla on September 12, 1961.

Background

At 23:00 UTC on October 3, 1964, Hurricane Hilda made landfall at 29.5°N 91.5°W / 29.5; -91.5, near Calumet, Louisiana, with maximum sustained winds of 105 mph (169 km/h) and an estimated atmospheric pressure of 959 mb (28.3 inHg). Although Hilda extensively damaged portions of Louisiana, most of its severest impacts, including the vast majority of fatalities, were related to hurricane-spawned tornadoes, along with inland flooding.

Outbreak statistics

Confirmed tornadoes

October 3 event

October 4 event

See also

• List of North American tornadoes and tornado outbreaks
• List of tornadoes spawned by tropical cyclones

Notes

References

Sources

• 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: 310–19. Bibcode:2004WtFor..19..310B. doi:10.1175/1520-0434(2004)019<0310:OTROTP>2.0.CO;2.
• Cook, A. R.; Schaefer, J. T. (August 2008). Written at Norman, Oklahoma. "The Relation of El Niño–Southern Oscillation (ENSO) to Winter Tornado Outbreaks". Monthly Weather Review. 136 (8). Boston: American Meteorological Society: 3135. Bibcode:2008MWRv..136.3121C. doi:10.1175/2007MWR2171.1.
• Edwards, Roger (2012). "Tropical cyclone tornadoes: A review of knowledge in research and prediction". Electronic Journal of Severe Storms Meteorology. 7 (6): 1–61. doi:10.55599/ejssm.v7i6.42. Archived from the original on March 16, 2016.
• Grazulis, Thomas P. (July 1993). Significant Tornadoes 1680–1991: A Chronology and Analysis of Events. St. Johnsbury, Vermont: The Tornado Project of Environmental Films. ISBN 1-879362-03-1.
• Grazulis, Thomas P. (2001a). The Tornado: Nature's Ultimate Windstorm. Norman: University of Oklahoma Press. ISBN 978-0-8061-3538-0.
• Grazulis, Thomas P. (2001b). F5-F6 Tornadoes. St. Johnsbury, Vermont: The Tornado Project of Environmental Films.
• International Best Track Archive for Climate Stewardship (IBTrACS) (May 2021). IBTrACS browser (hosted by UNC Asheville) (Report). National Centers for Environmental Information – via World Data Center for Meteorology.
• National Weather Service (October 1964). Storm Data Publication (Report). National Centers for Environmental Information – via Storm Events Database.
• U.S. Weather Bureau (October 1964). "Storm Data and Unusual Weather Phenomena". Storm Data. 6 (10). Asheville, North Carolina: National Climatic Data Center.

1. Hurricane Carla tornado outbreak
2. List of North American tornadoes and tornado outbreaks
3. List of deadliest tornadoes in the Americas
4. Tornadoes of 1964
5. List of F4 and EF4 tornadoes (1960–1969)
6. List of Canadian tornadoes and tornado outbreaks (before 2001)
7. List of tornadoes by province (Canada)
8. Hurricane Carla
9. List of tornadoes spawned by tropical cyclones
10. List of Florida hurricanes (1950–1974)
11. Purvis, Mississippi
12. List of disasters in the United States by death toll
13. List of Delaware hurricanes
14. Hurricane Alex (2010)
15. Brown ocean effect
16. Tropical Storm Beryl (1994)
17. List of United States tornadoes in April 2020
18. Tropical Storm Vamei
19. Tropical cyclones in 2021
20. Typhoon Lekima