A deadly tornado outbreak devastated parts of

Louisiana Louisiana ( ; ; ) is a state in the Deep South and South Central regions of the United States. It borders Texas to the west, Arkansas to the north, and Mississippi to the east. Of the 50 U.S. states, it ranks 31st in area and 25 ...

and

Tennessee Tennessee (, ), officially the State of Tennessee, is a landlocked U.S. state, state in the Southeastern United States, Southeastern region of the United States. It borders Kentucky to the north, Virginia to the northeast, North Carolina t ...

on February 11–13, 1950. The outbreak covered about a day and a half and produced numerous

tornado A tornado is a violently rotating column of air that is in contact with the surface of Earth and a cumulonimbus cloud or, in rare cases, the base of a cumulus cloud. It is often referred to as a twister, whirlwind or cyclone, although the ...

es, mostly from

East Texas East Texas is a broadly defined cultural, geographic, and ecological region in the eastern part of the U.S. state of Texas that consists of approximately 38 counties. It is roughly divided into Northeast Texas, Northeast, Southeast Texas, Sout ...

to the lower

Mississippi Valley The Mississippi River is the main stem, primary river of the largest drainage basin in the United States. It is the second-longest river in the United States, behind only the Missouri River, Missouri. From its traditional source of Lake Ita ...

, with activity concentrated in Texas and Louisiana. Most of the deaths occurred in Louisiana and Tennessee, where tornadoes killed 25 and 9 people, respectively. Several long-lived

tornado families A tornado family is a series of tornadoes spawned by the same supercell thunderstorm. These families form a line of successive or parallel tornado paths and can cover a short span or a vast distance. Tornado families are sometimes mistaken as a si ...

struck the Red River region of northwestern Louisiana, especially the Shreveport–Bossier City area. One of the tornadoes attained violent intensity, F4, on the Fujita scale and caused eight deaths, including six at the Shreveport Holding and Reconsignment Depot near

Barksdale Air Force Base Barksdale Air Force Base (Barksdale AFB) is a United States Air Force (USAF) base in Bossier Parish, Louisiana, in northwest Louisiana. Much of the base is within the city limits of Bossier City, Louisiana, along the base's western and northwest ...

. It remains one of the top ten deadliest tornadoes on record in the state of Louisiana, in tenth place. Also in Louisiana, two other destructive tornadoes on parallel paths killed 16. Seven additional deaths occurred across the border in East Texas. Nine people died in a tornado in western Tennessee as well. In all, the entire outbreak killed at least 41 people and left 228 injured. Also, several long-tracked tornadoes recorded in the outbreak likely contained more, shorter-lived tornadoes.

Outbreak statistics

Confirmed tornadoes

Prior to 1990, there is a likely undercount of tornadoes, particularly E/F0–1, with reports of weaker tornadoes becoming more common as population increased. A sharp increase in the annual average E/F0–1 count by approximately 200 tornadoes was noted upon the implementation of

NEXRAD NEXRAD or Nexrad (Next-Generation Radar) is a network of 159 high-resolution S-band pulse-Doppler radar, Doppler weather radars operated by the National Weather Service (NWS), an agency of the National Oceanic and Atmospheric Administration (NOAA) ...

Doppler weather radar A weather radar, also called weather surveillance radar (WSR) and Doppler weather radar, is a type of radar used to locate precipitation, calculate its motion, and estimate its type (rain, snow, hail etc.). Modern weather radars are mostly pu ...

in 1990–1991. 1974 marked the first year where significant tornado (E/F2+) counts became homogenous with contemporary values, attributed to the consistent implementation of

Fujita scale The Fujita scale (F-Scale; ), or Fujita–Pearson scale (FPP scale), is a scale for rating tornado intensity, based primarily on the damage tornadoes inflict on human-built structures and vegetation. The official Fujita scale category is determ ...

assessments. Numerous discrepancies on the details of tornadoes in this outbreak exist between sources. The total count of tornadoes and ratings differs from various agencies accordingly. The list below documents information from the most contemporary official sources alongside assessments from tornado historian Thomas P. Grazulis.

February 11 event

February 12 event

February 13 event

Non-tornadic effects

severe thunderstorm A thunderstorm, also known as an electrical storm or a lightning storm, is a storm characterized by the presence of lightning and its acoustics, acoustic effect on the Earth's atmosphere, known as thunder. Relatively weak thunderstorm ...

generated strong winds just east of

Pushmataha Pushmataha ( – December 24, 1824; also spelled Pooshawattaha, Pooshamallaha, or Poosha Matthaw) was one of the three regional chiefs of the major divisions of the Choctaw in the 19th century. Many historians considered him the "greatest of a ...

Choctaw County, Alabama Choctaw County is a county located in the southwestern portion of the U.S. state of Alabama. As of the 2020 census, the population was 12,665. The county seat is Butler. The county was established on December 29, 1847, and named for the Chocta ...

, at 6:00 p.m. EST (00:00 UTC) on February 13. The winds felled trees and damaged a trio of homes, one of which was leveled. Almost 18 hours previous barns and a few homes were damaged by strong winds at Marietta,

Cass County, Texas Cass County is a county located in the U.S. state of Texas. As of the 2020 census, its population was 28,454. The county seat is Linden. The county was named for United States Senator Lewis Cass (D-Michigan), who favored the U.S. annexation ...

. A day earlier

hail Hail is a form of solid Precipitation (meteorology), precipitation. It is distinct from ice pellets (American English "sleet"), though the two are often confused. It consists of balls or irregular lumps of ice, each of which is called a hailsto ...

and wind caused negligible damage to property in and near

Winnsboro, Louisiana Winnsboro is a town in, and the County seat, parish seat of Franklin Parish, Louisiana, United States. As of 2020, its population was 4,862. History Franklin Parish was created on March 1, 1843, from portions of Ouachita Parish, Louisiana, Oua ...

, as well.

Notes

References

Sources

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