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===April 17–19===
===April 17–19===
{{Main|April 17–19, 1970 tornado outbreak sequence}}
{{Main|Tornado outbreak sequence of April 17–19, 1970}}
{{Tornado chart small|Enhanced=no|Total=33|F0=4|F1=12|F2=10|F3=2|F4=5|F5=0}}
{{Tornado chart small|Enhanced=no|Total=33|F0=4|F1=12|F2=10|F3=2|F4=5|F5=0}}
A major tornado outbreak sequence caused 33 tornadoes. The outbreak killed at least 26 people.
A major tornado outbreak sequence caused 33 tornadoes. The outbreak killed at least 26 people.
Line 112: Line 112:


===August 20 (Canada)===
===August 20 (Canada)===
{{Main|Sudbury, Ontario, tornado}}
{{Main|Sudbury tornado}}


A tornado rated F3 struck [[Greater Sudbury|Sudbury]], [[Ontario]], [[Canada]]. The storm killed six people.
A tornado rated F3 struck [[Greater Sudbury|Sudbury]], [[Ontario]], [[Canada]]. The storm killed six people.

Revision as of 15:02, 18 July 2018

Tornadoes of 1970
TimespanJanuary - December 1970
Maximum rated tornadoF5 tornado
Tornadoes in U.S.653[1]
Damage (U.S.)Unknown
Fatalities (U.S.)73
Fatalities (worldwide)>73

This page documents the tornadoes and tornado outbreaks of 1970, primarily in the United States. Most tornadoes form in the U.S., although some events may take place internationally. Tornado statistics for older years like this often appear significantly lower than modern years due to fewer reports or confirmed tornadoes.

Events

United States yearly total

Confirmed tornadoes by Fujita rating
FU F0 F1 F2 F3 F4 F5 Total
0 164 253 191 36 8 1 653

January

9 tornadoes were reported in the United States in January, including a rare, violent tornado in Australia.[2]

January 1 (Australia)

Main article: Bulahdelah tornado

An intense tornado, which occurred near the town of Bulahdelah (100 kilometres (62.1 mi) north-northeast of Newcastle), New South Wales on 1 January 1970, is thought to be the most destructive tornado ever documented in Australia.[3] It is thought to be least F4 or F5 on the Fujita scale, however, no official rating has been made public.[4][5] The tornado left a damage path 22 kilometres (14 mi) long and 1–1.6 km (0.6–1 mi) wide through the Bulahdelah State Forest.[3] It is estimated that the tornado destroyed over one million trees.[3] A caravan was destroyed and a 2-ton (2,000 kg) tractor was lifted into the air, landing upside down. The tornado was reported by witnesses as a swirling black cloud surrounded by flying debris, and producing a thunderous roaring sound.[6] The weather system that produced the tornado was a classic set-up for violent tornadoes, something somewhat rarely seen outside of the United States, Canada, Bangladesh, and adjacent areas of India.

February

16 tornadoes were reported in the United States in February.[7]

February 3

FU F0 F1 F2 F3 F4 F5 Total
0 1 3 4 0 0 0 8

A small, localized outbreak occurred in Florida, producing eight tornadoes. One tornado, an F2 tornado, caused at least $50,000 (1970 USD) in damages in Fellsmere. Another tornado, which was also rated an F2, touched down in the Gainesville neighborhood of Ironwood, causing at least $50,000 (1970 USD) in damages. Two tornadoes, an F1 and an F2, tracked through Arcadia, both causing $1,000,000 (1970 USD) combined in damages. Overall, there were no fatalities or injuries, and the total amount of damage was $1,615,000 (1970 USD).[8]

March

25 tornadoes were reported in the United States in March.[9]

March 2–3

FU F0 F1 F2 F3 F4 F5 Total
0 1 3 4 1 0 0 9

The first tornado was a long–tracked F0 tornado that passed Lincoln, Kansas. The other tornado that day, an F2 tornado, carved a 25–mile–long path across Southern Kansas, causing at least $5,000,000 (1970 USD) in damages. Tornado activity continued into the next day when the system took a south-southeastern turn, causing at least seven tornadoes across Texas, Mississippi, and Alabama. The strongest tornado was an F3 tornado that caused $50,000 (1970 USD) in damages near Overton, Texas.[10][11]

March 19

FU F0 F1 F2 F3 F4 F5 Total
0 0 0 1 1 0 0 2

Two tornadoes were confirmed in Alabama, of which one was an F3 tornado that killed two people near Lanett, Alabama. The other tornado, which was assigned an F2 rating, touched down in the Greensboro, Alabama area.[12]

April

117 tornadoes were reported in the United States in April.[13]

April 1–2

FU F0 F1 F2 F3 F4 F5 Total
0 0 7 9 2 0 0 18

A widespread outbreak of 18 tornadoes ranged from Georgia to Ohio, injuring 18 people. An F2 tornado injured four people southwest of Pinhook, Missouri. A suspected F1 tornado touched down in the outskirts of Louisville, Kentucky. Another F2 tornado injured four people near Itta Bena, Mississippi. The two most considerable tornadoes in the outbreak were two F3 tornadoes that touched down in Georgia on April 2.[14][15]

April 17–19

Main article: Tornado outbreak sequence of April 17–19, 1970
FU F0 F1 F2 F3 F4 F5 Total
0 4 12 10 2 5 0 33

A major tornado outbreak sequence caused 33 tornadoes. The outbreak killed at least 26 people.

April 21 (Uruguay)

A powerful F4 tornado destroyed the small town of Fray Marcos, causing 11 dead and 100 wounded. It is the worst tornado recorded in the history of Uruguay.[citation needed]

April 22

FU F0 F1 F2 F3 F4 F5 Total
0 0 3 4 0 0 0 7

Seven tornadoes touched down in Wisconsin and Minnesota during the nightly hours. Five tornadoes were confirmed in Wisconsin and two were confirmed in Minnesota. The most significant tornado was an F2 tornado that tracked through Ashwaubenon, a suburb of Green Bay, Wisconsin, injuring two people.[16]

April 23–27

FU F0 F1 F2 F3 F4 F5 Total
0 6 10 11 6 1 0 34

A small but violent outbreak of tornadoes occurred across much of the Southern United States. Three significant tornadoes touched down in the Memphis area, injuring 26 people. The Memphis tornadoes, in all, caused $16,655,000 (1970 USD) in damages.[17][18] Tornadoes ranged from Texas to Alabama, killing one person and causing at least $5,820,100 (1970 USD) in damages between April 25–26.[19][20] On April 27, an F4 tornado tracked across Springfield, Tennessee, killing three people. An additional F0 tornado occurred in California.[21]

May

88 tornadoes were reported in the United States in May.[22]

May 11

Main article: 1970 Lubbock tornado
FU F0 F1 F2 F3 F4 F5 Total
0 2 3 0 0 0 1 6

A violent, F5 tornado touched down in the Lubbock, Texas area, causing $200 million (1970 USD) in damages. A total of 26 people were killed in the tornado. In the days following the tornado, paramedics and aids from many different towns. Blankets and other useful things arrive at relief shelters in Lubbock. Bottled water was on very high demand in the after days too. Though, Pearl Brewery (at the time was located in San Antonio) sent hundreds of bottled waters for the workers, agents, and the survivors. The town recovered from the storm in less than five years.[23][24] Five additional, weak tornadoes occurred in Texas, Kansas, and Oregon.[25]

May 12–14

FU F0 F1 F2 F3 F4 F5 Total
0 4 12 9 0 0 0 25

A decent tornado outbreak produced 25 tornadoes across Texas and the Midwestern States. One tornado, an F1, caused $30,000 (1970 USD) in damages in Downtown Indianapolis. In the Indianapolis tornado, a shopping center sustained damages up to $20,000 and scattered debris across the city, along with it, one woman was injured after being struck by lightning. Another tornado, rated F2, destroyed buildings, trees, and trailers near Broken Bow, Nebraska, injuring one. Five people were injured near Cardington, Ohio after a brief tornado damaged trees, utility lines, and a mobile home.[26][27][28][29]

June

134 tornadoes were reported in the United States in June.[30]

June 10–16

FU F0 F1 F2 F3 F4 F5 Total
0 28 28 18 7 1 0 82
Main article: June 10–16, 1970 tornado outbreak sequence

A very large, devastating tornado outbreak sequence was observed between June 10 and June 16, 1970. At least 82 tornadoes touched down in the Great Plains region, killing three people and injuring 73 people.[31] The first tornado touched down about one mile south-southeast of Douglas, North Dakota,[32] ripping the roof off of a barn and caused slight damage to a farmhouse.[33] The following day, an F1 tornado struck Duncan, Oklahoma, injuring two people after downing antennas and tree limbs in the area.[33] Another tornado, which was rated F2, struck Hennessey, Oklahoma, destroying two mobile homes, damaging three other buildings, and uprooted trees, injuring two people.[33] An F3 tornado tracked through suburbs of Oklahoma City, destroying a farmstead, damaging a nursing home, a retirement home, two more farmsteads, and ripping the shingles off of a home. One person was injured in the Oklahoma City tornado.[33] Another tornado killed one person near Vinita, Oklahoma, which was rated F2.[34] Another tornado that was rated F2 killed one person near Longtown, Oklahoma. A very long–tracked tornado touched down near Bunch, Oklahoma, tracking 51.8 miles through Springdale, Arkansas, killing one and injuring 45.[35] The strongest tornado of the outbreak sequence was an F4 tornado, which passed near Bynumville, Missouri, leveling farms and causing extensive damage to many more.[33] The last tornado was an F1 tornado that touched down in Marshall, Illinois, causing minor damage to buildings and uprooting trees. Overall, three fatalities and 73 injuries occurred.[33]

July

81 tornadoes were reported in the United States in July.[36]

August

55 tornadoes were reported in the United States in August.[37]

August 20 (Canada)

Main article: Sudbury tornado

A tornado rated F3 struck Sudbury, Ontario, Canada. The storm killed six people.

September

54 tornadoes were reported in the United States in September.[38]

October

50 tornadoes were reported in the United States in October.[39]

October 5

FU F0 F1 F2 F3 F4 F5 Total
0 0 0 1 0 1 0 2

Two tornadoes touched down in Oklahoma, killing four people and injuring 85. The total amount of damages amounted to $50,050,000 (1970 USD).[40]

November

10 tornadoes were reported in the United States in November.[41]

November 19

FU F0 F1 F2 F3 F4 F5 Total
0 0 1 4 2 0 0 7

At least seven tornadoes touched down across the Mississippi and Ohio Valley. The two strongest tornadoes were F3 tornadoes that touched down in Arkansas and Indiana. The most notable was a tornado that touched down near Moro, Arkansas, injuring 27 people and caused more than $500,000 (1970 USD) in damages. The other F3 tornado touched down in Tell City, Indiana, injuring two people and causing $50,000 (1970 USD) in damages.[42]

December

14 tornadoes were reported in the United States in December.[43]

See also

References

  1. ^ http://www.tornadohistoryproject.com/tornado/1970/map
  2. ^ http://www.tornadohistoryproject.com/tornado/1970/1/map
  3. ^ a b c "Thunderstorms in NSW & the ACT". Bureau of Meteorology. Retrieved 11 November 2010.
  4. ^ "Tornadoes of Australia and New Zealand". The Weather Doctor. Retrieved 5 April 2008.
  5. ^ "23 September 2003: Australian thunderstorm climatology". Bureau of Meteorology. Archived from the original on 26 November 2012. Retrieved 5 April 2008. {{cite web}}: Unknown parameter |dead-url= ignored (|url-status= suggested) (help)
  6. ^ Shanahan, B (April 1985). "Bulahdelah Tornado Report" (PDF). Bureau of Meteorology. Retrieved 10 February 2012.
  7. ^ http://www.tornadohistoryproject.com/tornado/1970/2/map
  8. ^ http://www.tornadohistoryproject.com/tornado/1970/2/3/table
  9. ^ http://www.tornadohistoryproject.com/tornado/1970/3/map
  10. ^ http://www.tornadohistoryproject.com/tornado/1970/3/2/map
  11. ^ http://www.tornadohistoryproject.com/tornado/1970/3/3/map
  12. ^ http://www.tornadohistoryproject.com/tornado/1970/3/19/map
  13. ^ http://www.tornadohistoryproject.com/tornado/1970/4/map
  14. ^ http://www.tornadohistoryproject.com/tornado/1970/4/1/map
  15. ^ http://www.tornadohistoryproject.com/tornado/1970/4/2/map
  16. ^ http://www.tornadohistoryproject.com/tornado/1970/4/22/map
  17. ^ http://www.tornadohistoryproject.com/tornado/1970/4/23/map
  18. ^ http://www.tornadohistoryproject.com/tornado/1970/4/24/map
  19. ^ http://www.tornadohistoryproject.com/tornado/1970/4/25/map
  20. ^ http://www.tornadohistoryproject.com/tornado/1970/4/26/map
  21. ^ http://www.tornadohistoryproject.com/tornado/1970/4/27/map
  22. ^ http://www.tornadohistoryproject.com/tornado/1970/5/map
  23. ^ http://www.tornadohistoryproject.com/tornado/19700511.48.34
  24. ^ "Archived copy". Archived from the original on 2011-07-13. Retrieved 2011-07-13. {{cite web}}: Unknown parameter |deadurl= ignored (|url-status= suggested) (help)CS1 maint: archived copy as title (link)
  25. ^ http://www.tornadohistoryproject.com/tornado/1970/5/11/map
  26. ^ http://www.tornadohistoryproject.com/tornado/1970/5/12/map
  27. ^ http://www.tornadohistoryproject.com/tornado/1970/5/13/map
  28. ^ http://www.tornadohistoryproject.com/tornado/1970/5/14/map
  29. ^ http://www1.ncdc.noaa.gov/pub/orders/IPS/IPS-70719520-AD7E-43E4-A47F-A9721AB955DD.pdf
  30. ^ http://www.tornadohistoryproject.com/tornado/1970/6/map
  31. ^ http://www.tornadohistoryproject.com/custom/7130649
  32. ^ http://www.tornadohistoryproject.com/tornado/19700610.38.3
  33. ^ a b c d e f http://www1.ncdc.noaa.gov/pub/orders/IPS/IPS-7D422D12-3E19-4E2E-95BE-38618D3EC446.pdf
  34. ^ http://www.srh.noaa.gov/oun/?n=tornadodata-ok-1970
  35. ^ http://www.tornadohistoryproject.com/tornado/19700611.40.26
  36. ^ http://www.tornadohistoryproject.com/tornado/1970/7/map
  37. ^ http://www.tornadohistoryproject.com/tornado/1970/8/map
  38. ^ http://www.tornadohistoryproject.com/tornado/1970/9/map
  39. ^ http://www.tornadohistoryproject.com/tornado/1970/10/map
  40. ^ http://www.tornadohistoryproject.com/tornado/1970/10/5/table
  41. ^ http://www.tornadohistoryproject.com/tornado/1970/11/map
  42. ^ http://www.tornadohistoryproject.com/tornado/1970/11/19/table
  43. ^ http://www.tornadohistoryproject.com/tornado/1970/12/map
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