San Justo tornado

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San Justo tornado
F5 tornado
Formed10 January 1973
Highest winds
  • > 418 km/h (260 mph)
Tornadoes
confirmed
1
Max. rating1F5 tornado
Fatalities63 fatalities, 350 injuries
Damage~$60,000 (1973 USD)
~$324,000 (2016 USD)[1]
Areas affectedSan Justo, Santa Fe, Argentina
1Most severe tornado damage; see Fujita scale

The San Justo tornado was a powerful tornado which struck San Justo, a town in the province of Santa Fe, Argentina, on January 10, 1973. At least 63 people were reported dead and 350 were reported injured as it cut a 330 yard wide swath through the town. It was the most violent tornado ever recorded in South America, and also the entire Southern Hemisphere. The tornado is widely considered to have been an F5 on the Fujita Scale. This tornado had an economic cost of about $60,000 and was the deadliest tornado in Argentina's history.[2]

The tornado[]

After a morning of intense heat, at noon huge cumulonimbus clouds were seen coming.

Due to the high relative humidity content and extreme instability, around 13:00 local time are produced some isolated rainfalls.

At about 14:15 local time[3], a tornado touched down right next to the General Belgrano Railroad tracks, in an open field. The tornado quickly became extremely violent, reaching F5 intensity two minutes later. The tornado tore through San Justo, wrecking multiple factories and over 500 homes, leveling some homes with little or no trace[4]. Vehicles were thrown hundreds of yards and mangled beyond recognition, and grass was reportedly ripped from the ground. A newspaper image showed a vehicle motor that was embedded into a concrete wall by the tornado. A tractor was found in a wooded area 500 meters away from the dealership where it originated[5]. The tornado reached a maximum width of 300 meters, and abruptly dissipated 5 minutes after reaching F5 intensity. The tornado traveled for 1.5 kilometres (0.9 mi) and killed 63 people along its path.

Effects of the tornado[]

Plan of the city of San Justo. The striped part shows the area most affected by the tornado.

The tornado is said to have changed color multiple times, an unusual phenomenon. The tornado began with a unique violet color, and then turned red when it devastated brick homes, picking up brick dust along its path. The tornado destroyed several vehicles, threw some like “ping pong balls,” and left some unrecognizable[6]. A trailer was buried in a 2 meter wide ditch. The tornado threw cows over 30 meters in the air. The tornado also passed over a lagoon, sucking up all the water that was inside of it[7]. In total, the tornado killed 63 people, and caused millions of pesos in damage. The tornado destroyed a ton of wooden planks, and turned them into flying projectiles, which caused most of the fatalities.

After the tornado[]

The supercell that spawned the tornado continued to produce heavy rain for another hour, and then rescue efforts were started immediately afterwards. The local San Justo Hospital was turned into a morgue, with bodies waiting to be identified. Radio communications were cut, and San Justo was left without electricity for some time. The tornado left over 2000 people homeless, due to the extreme house damage. Dr. Ted Fujita studied this tornado, and called it “the most intense and violent tornado I have ever seen outside of the United States.” This is the only recorded F5 tornado in the Southern Hemisphere.

In 2018, a group of sanjustinos made a documentary film entitled "Vorágine" about the experience of 3 relatives of tornado casualties. The film was directed by Fernando Molinas and produced by Imanol Sánchez.

Sources[]

  • Worldwide Tornadoes--Argentina
  • (2001). The Tornado: Nature's Ultimate Windstorm. Norman, OK: University of Oklahoma Press. ISBN 0-8061-3258-2
  • http://tormentasdebuenosaires.blogspot.com/2011/03/tornado-ef5-en-san-justo-santa-fe.html

References[]

  1. ^ CPI Inflation Calculator
  2. ^ Viento Asesino (motion picture). Argentina: unknown. June 19, 2013. Archived from the original on 2021-12-21. Retrieved August 26, 2014.
  3. ^ "Se cumplen 40 años del tornado que azotó a San Justo". www.ellitoral.com. Retrieved 2022-02-09.
  4. ^ "Tornado de san justo - Foros Tutiempo". www.tutiempo.net. Retrieved 2022-02-09.
  5. ^ "Tornado de san justo - Foros Tutiempo". www.tutiempo.net. Retrieved 2022-02-09.
  6. ^ "Tornado de san justo - Foros Tutiempo". www.tutiempo.net. Retrieved 2022-02-09.
  7. ^ http://tormentasdebuenosaires.blogspot.com/2011/03/tornado-ef5-en-san-justo-santa-fe.html


Coordinates: 30°47′18″S 60°35′55″W / 30.788301°S 60.598524°W / -30.788301; -60.598524


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