1970–1975 Southern Hemisphere tropical cyclone seasons

The 1970–1975 Southern Hemisphere tropical cyclone seasons ran year-round from July 1 to June 30 during each year between 1970 and 1975. Tropical cyclone activity in the Southern Hemisphere reaches its peak from mid-February to early March.

1970–1971 Southern Hemisphere tropical cyclone season

The following storms occurred in the Australian Region during the 1970–1971 tropical cyclone season:[1]

Cyclone Andrea

  • Andrea, 31 October to 11 November 1970 in central Indian Ocean

Cyclone Betsy

Cyclone Beverly

  • Beverley, 26 November to 1 December 1970 in Arafura Sea. The decayed storm developed into Eva (below)

Cyclone Eva

Cycllone Hilary-Dominique

  • Hilary, 11 to 18 December 1970 in central Indian Ocean

Cyclone Janet

  • Janet, 19 to 25 December 1970 in central Indian Ocean

Cyclone 06P

Cyclone Loris

  • Loris, 26 to 31 December 1970 crossed the Pilbara coast near Mandora with no serious damage.

Cyclone Rosie

Cyclone Sophie

  • Sophie, weak cyclone late December 1970 near New Caledonia

Cyclone Myrtle-Ginette

  • Myrtle/Ginette, 15 to 19 January 1971 near Cocos Island and moved west

Cyclone Polly

  • Polly, 20 to 29 January 1971 in central Indian Ocean

Cyclone Rita

Cyclone Shiela-Sophie

Cyclone Aggie

Cyclone Helga

Cyclone Yvonne

  • Yvonne, 9 to 24 February 1971 near Cocos Island and moved west

Cyclone Tilly

  • Tilly, 10 to 14 February 1971 in central Indian Ocean

Cyclone Dora

Cyclone Dora formed in the Coral sea east of proserpine on February 10, 1971, it took a southeasterly track over the next 4 days away from the QLD coast turning into a low pressure system well east of the QLD NSW border. On February 17 the system reintensified into a cyclone east of the Gold Coast and crossed the coast north of Brisbane at Redcliffe. Widespread structural dammage was reported with power lines down and roofs removed.http://www.bom.gov.au/cyclone/history/dora.shtml

Cyclone Gertie

  • Gertie, 11 to 16 February 1971 crossed near Townsville, Queensland and developed into Fiona (below)

Cyclone Iphigenie

Cyclone Ida

Cyclone Joelle

Cyclone Fiona

Cyclone Kalinka

  • Kalinka, February 1971 in central Indian Ocean near Mauritius

Cyclone Yvonne-Lise

Cyclone Maggie-Muriel

  • Maggie/Muriel, 7 to 20 March 1971 in central Indian Ocean

Cyclone Lena

  • Lena, 13 to 20 March 1971 near New Caledonia

Cyclone Nelly

Cyclone Mavis

Cyclone Carmen

  • Carmen, 20 to 30 November 1971 in central Indian Ocean
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1971–1972 Southern Hemisphere tropical cyclone season

Cyclone Odette

Cyclone Rhoda

Cyclone 03P

Cyclone Ursula

Cyclone Kitty

Cyclone Sally

Cyclone Agnes

Cyclone Vivienne

Cyclone Althea

Category 4 severe tropical cyclone (Australian scale)
Category 1 tropical cyclone (SSHS)
Clockwise vortex
Duration December 19 – December 29
Peak intensity 165 km/h (105 mph) (10-min)  952 mbar (hPa)

Tropical Cyclone Althea was a Category 4 cyclone when it hit the coast some 50 km north of Magnetic Island and Townsville in North Queensland on December 24, 1971.[2] Althea produced peak gust wind speeds between 123 and 145 miles per hour (197 and 233 km/h). Three people died and property damage was estimated at A$115 million loss (1990 value). On Magnetic Island 90% of the houses were damaged or destroyed.[3] In Townsville houses were lifted from their foundations and most trees stripped of foliage. Althea was also notable at the time, as it had struck a major city.

Although there was a dangerous storm surge associated with TC Althea (between 2.8 and 3.6 metres) little flooding occurred because the cyclone made landfall on a low tide. However, the combination of storm surge and wave action demolished The Strand sea wall and houses in low-lying areas were inundated with up to 0.6 metres of water.

Cyclone Belle

Cyclone Bronwyn

Cyclone Carlotta

  • Carlotta, 5 to 21 January 1972 well off Queensland

Cyclone Wendy

  • Wendy, 30 January to 9 February 1972 very intense off Queensland, possible pressure as low as 890hPa

Cyclone Caroline

Cyclone Dolly

Cyclone Daisy

  • Daisy, 7 to 14 February 1972 off Queensland, caused some flooding near Brisbane

Cyclone Eugenie

Cyclone Fabienne

Cyclone Gigi

Cyclone Tessie

  • Tessie, 20 to 27 February 1972 in central Indian Ocean

Cyclone 20S

Cyclone Vicky

Cyclone Angela

Cyclone Hermione

Cyclone Yolande

Cyclone Belinda

  • Belinda, 20 to 30 March 1972 near Christmas Island

Cyclone Agatha

Cyclone Emily

  • Emily, 27 March to 4 April 1972 off Queensland, eight lives lost at sea

Cyclone Carol

  • Carol, 6 to 14 April 1972 in the central Indian Ocean.

Cyclone Faith

Cyclone Gail

  • Gail, 11 to 18 April 1972 well off Queensland

Cyclone Hannah

Cyclone Ida

  • Ida, 30 May to 3 June 1972 near Solomon Islands causing $70 million damage.
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1972–1973 Southern Hemisphere tropical cyclone season

Cyclone Bebe

Category 3 severe tropical cyclone (Australian scale)
Category 3 tropical cyclone (SSHS)
Duration October 19 – October 25
Peak intensity 155 km/h (100 mph) (10-min)  945 mbar (hPa)

Tropical cyclone Bebe was a pre-season storm that impacted the Gilbert, Ellice Islands, and Fiji island groups.[4] First spotted on October 20, the system intensified and grew in size through October 22. Its course began along a south-southwest trajectory before recurving near the 14th parallel south, which resulted in a south-southeast motion through the western portion of the Fiji island group.[4] Bebe became the first cyclone to impact Fiji since 1952. On October 24, winds of 150 knots (280 km/h) or more were reported on Rotuma and Viti Levu. The cyclone submerged Funafuti, eliminating 90% of structures on the island. Sources of drinking water were contaminated as a result of the system's storm surge and fresh water flooding. After passing by the archipelago, Bebe transitioned into an extratropical cyclone, with the remnants last noted on October 28.[4] A total of 28 people died and thousands were left homeless. Damages totaled $20 million (1972 USD).[5][6]

Cyclone 02P

Cyclone Ariane

Cyclone Diana

Cyclone Ivy-Beatrice

Cyclone 06P

Cyclone 07P

Cyclone Charlotte

Cyclone Jean

Clockwise vortex
Duration January 9 – January 16
Peak intensity Winds unknown 

Cyclone Dorothee

Cyclone Felicity

Clockwise vortex
Duration January 12 – January 18
Peak intensity Winds unknown 

Cyclone Emmanuelle

Cyclone Kerry

Duration January 18 – January 25
Peak intensity Winds unknown 

At Wickham on 21 January 1973 more than 30 houses were partly unroofed and some houses received major damage. There was no damage to buildings in Dampier, Roebourne or Karratha as the cyclone crossed the coast well to the east. Kerry passed close to a number of oil-drilling rigs causing damage and lost productivity time that cost over one million dollars. Maximum recorded gust was 140 km/h at Cape Lambert.[7]

Cyclone Faustine

Cyclone Leila-Gertrude

Duration January 22 – February 3
Peak intensity Winds unknown 

Cyclone Hortense

Cyclone Maude

Duration January 26 – January 31
Peak intensity Winds unknown 

Cyclone Adeline

Duration January 28 – January 31
Peak intensity Winds unknown 

Cyclone Henrietta

Clockwise vortex
Duration January 30 – February 5
Peak intensity Winds unknown 

Cyclone Glenda

Cyclone 20P

Cyclone Isis

Cyclone Jessy

Clockwise vortex
Duration February 14 – February 25
Peak intensity Winds unknown 

Cyclone Kristy

Clockwise vortex
Duration February 23 – March 1
Peak intensity Winds unknown 

Cyclone Kitty

Duration February 24 – March 4
Peak intensity Winds unknown 

Cyclone Leah

Clockwise vortex
Duration February 25 – March 8
Peak intensity Winds unknown 

Cyclone 25P

Unnamed Cyclone

Duration March 2 – March 13
Peak intensity Winds unknown 

Cyclone Madge

Duration March 3 – March 17
Peak intensity Winds unknown 

Cyclone Lydie

Cyclone Nellie

Duration March 14 – March 21
Peak intensity Winds unknown 

Cyclone Bella

Clockwise vortex
Duration March 21 – March 25
Peak intensity Winds unknown 

Cyclone Paula

Clockwise vortex
Duration March 28 – March 31
Peak intensity Winds unknown 

Cyclone Juliette

Clockwise vortex
Duration April 2 – April 6
Peak intensity Winds unknown 

Cyclone Roma

Duration April 18 – April 22
Peak intensity Winds unknown 

Cyclone Marcelle

Clockwise vortex
Duration April 30 – May 6
Peak intensity Winds unknown 

Cyclone 32S

Cyclone 33P

Cyclone 34S

Tropical cyclone Bernendette

On 27 April, a tropical cyclone formed near Flores. It moved near the island and dissipated two days later. The cyclone was a major disaster. It sank a ship, with all 21 hands lost, as well as killing around 1500 fishers at sea. On the island of Flores, 53 were killed.[8]

Cyclone 36S

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1973–1974 Southern Hemisphere tropical cyclone season

Cyclone 01P

Cyclone 02P

Cyclone Alice

Cyclone Bernadette

Duration October 16 – October 28
Peak intensity Winds unknown 

Cyclone 05P

Cyclone Ines

Tropical storm (SSHS)
Clockwise vortex
Duration November 18 – November 23
Peak intensity 100 km/h (65 mph) (1-min)  985 mbar (hPa)

Cyclone Annie

Duration November 21 – December 5
Peak intensity Winds unknown 

Cyclone Beryl

Duration November 27 – December 4
Peak intensity Winds unknown 

Cyclone Natalie-Lottie

Duration December 4 – December 12
Peak intensity Winds unknown 

Cyclone Lottie struck Fiji's Southern Lau Group on December 10. High seas caused the ship Uluilakeba to capsize killing more than 85 people.[9][10]

Cyclone Christiane

Cyclone Una

Cyclone Deidre-Delida

Duration December 19 – December 31
Peak intensity Winds unknown 

Cyclone Erica

Cyclone Esmeralda

Cyclone Fiona-Gwend

Clockwise vortex
Duration January 8 – January 12
Peak intensity Winds unknown 

Cyclone Monica

Cyclone Nessie

Clockwise vortex
Duration January 18 – January 21
Peak intensity Winds unknown 

Cyclone Vera

Clockwise vortex
Duration January 19 – January 22
Peak intensity Winds unknown 

Cyclone Fredegonde

Cyclone Wanda

Clockwise vortex
Duration January 23 – January 25
Peak intensity Winds unknown 

This cyclone existed from 24 January to 27 January 1974 and led to extensive flooding over southeast Queensland. Although this tropical cyclone was relatively weak, it dropped enormous quantities of rain on south-eastern Queensland and north-eastern New South Wales over the Australia Day (26–27 January) weekend, resulting in some of the worst flooding seen in a century. The Queensland state capital, Brisbane, fared particularly badly, with fourteen lives lost and parts of the city submerged under 2 metres of the Brisbane River. (See 1974 Brisbane flood.) In northern New South Wales, a further two fatalities were reported. The cyclone's final toll: 16 dead, over 300 injured; 56 homes destroyed, a further 1,600 submerged; 8000 people left homeless.[11]

Cyclone Pam

Clockwise vortex
Duration January 30 – February 7
Peak intensity Winds unknown 

Cyclone Yvonne

Cyclone 22P

Cyclone 23P

Cyclone Rebecca

Clockwise vortex
Duration February 22 – February 25
Peak intensity Winds unknown 

Cyclone Ghislaine

Clockwise vortex
Duration February 23 – March 1
Peak intensity Winds unknown 

Cyclone 25P

Cyclone Helen

Clockwise vortex
Duration February 28 – March 10
Peak intensity Winds unknown 

Cyclone Zoe

Duration March 2 – March 18
Peak intensity Winds unknown 

Cyclone Zoe was named and detected on 9 March 1974 when it was northeast of Brisbane. In the following days it moved steadily southward[12] and interacted with an already-exiting trough in the easterlies to produce sustained and very heavy rainfall all along the coast from Brisbane south almost to Sydney. In the four days between 10–13 March, Brisbane received 419.4 millimetres (16.51 in)[13] and some places in the Northern Rivers region of New South Wales received as much as 700 millimetres (28 in).[14] With catchments already saturated by heavy January rains, record flooding occurred on the Richmond River,[15][16] which reached a height of 12.17 metres (39.9 ft).

Cyclone Isobel

Cyclone Jessie

Duration March 16 – March 25
Peak intensity Winds unknown 

Cyclone Jenny

Duration March 16 – March 30
Peak intensity Winds unknown 

Cyclone 31S

Cyclone Alice

Cyclone Honorine

Duration April 14 – April 24
Peak intensity Winds unknown 

Cyclone Tina

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References

  1. ^ Bureau of Meteorology (1973) Tropical Cyclones in the Northern Australian Regions 1970-1971 Australian Government Publishing Service
  2. ^ "Severe Tropical Cyclone Althea. Summary.". Bureau of Meteorology. Retrieved 2011-03-05. 
  3. ^ "Severe Tropical Cyclone Althea. Summary.". Bureau of Meteorology. Retrieved 2011-02-02. 
  4. ^ a b c Bureau of Meteorology (1975) Tropical Cyclones in the Northern Australian Regions 1971-1972 Australian Government Publishing Service
  5. ^ Elwyn E. Wilson (January 1973). "October Hurricane Clobbers Fiji". Mariners Weather Log (National Oceanic and Atmospheric Administration) 17 (1): 19–20. 
  6. ^ RSMC Nadi — Tropical Cyclone Centre, TCWC Brisbane, TCWC Wellington (May 22, 2009). "TCWC Wellington Best Track Data 1967–2006". Fiji Meteorological Service, Meteorological Service of New Zealand Limited, Australian Bureau of Meteorology. United States: International Best Track Archive for Climate Stewardship. 
  7. ^ BoM - Tropical Cyclones affecting Karratha/Dampier
  8. ^ Gary Padgett (2002-04-20). "Monthly Global Tropical Cyclone Summary December 2001". Archived from the original on 27 September 2007. Retrieved 2007-10-21. 
  9. ^ Fiji Times
  10. ^ [1]
  11. ^ Bureau of Meteorology (1992). Climate of Queensland, Commonwealth of Australia ISBN 0-644-24331-7
  12. ^ Cyclone Zoe
  13. ^ Brisbane Highest Daily Rainfall-March
  14. ^ March 1974 flood
  15. ^ No wind of change
  16. ^ Going to Venice
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Last modified on 13 May 2013, at 15:35