The 1974–75 South Pacific cyclone season ran year-round from July 1 to June 30. Tropical cyclone activity in the Southern Hemisphere reaches its peak from mid-February to early March.
Systems
Cyclone 04P
This cyclone existed from December 6 to December 9.
Cyclone 05P
This cyclone existed from December 11 to December 15.
Cyclone 06P
This cyclone existed from December 18 to December 24.
Tropical Cyclone Flora
Tropical Cyclone Flora existed from January 12 to January 22.
Tropical Cyclone Gloria
Tropical Cyclone Gloria existed from January 14 to January 23.
Cyclone 15P
This cyclone existed from January 19 to January 21.
Severe Tropical Cyclone Val
This cyclone existed from January 24 to February 5.
Cyclone 18P
This cyclone existed from January 26 to January 28.
Severe Tropical Cyclone Alison
This cyclone existed from March 4 to March 13.
Severe Tropical Cyclone Betty
This cyclone existed from March 30 to April 12.
Other systems
The first tropical disturbance of the season was first noted on November 19, while it was located within the Australian region about 500 km (310 mi) to the north of Brisbane, Australia.[1][2] Over the next couple of days, the system moved north-westwards into the South Pacific basin towards New Caledonia, before it recurved south-eastwards and was last noted as it moved back into the Australian region during November 24.[1][3] A windspeed of 75 km/h (45 mph) was recorded in northern New Zealand and associated with this system.[1]
Seasonal effects
| Name | Dates active | Peak intensity | Areas affected | Damage (US$) |
Deaths | Refs | ||
|---|---|---|---|---|---|---|---|---|
| Category | Wind speed | Pressure | ||||||
| Unnamed | November 20 – 24 | Category 1 tropical cyclone | 85 km/h (50 mph) | 994 hPa (29.35 inHg) | New Caledonia | Unknown | Unknown | [1] |
| Flora | January 12 – 22 | Category 2 tropical cyclone | 100 km/h (65 mph) | 980 hPa (28.94 inHg) | Unknown | Unknown | ||
| Gloria | January 19 – 23 | Category 2 tropical cyclone | 100 km/h (65 mph) | 980 hPa (28.94 inHg) | Unknown | Unknown | ||
| Val | January 24 – February 5 | Category 3 severe tropical cyclone | 155 km/h (100 mph) | 965 hPa (28.50 inHg) | Unknown | Unknown | ||
| Alison | March 4 – 13 | Category 3 severe tropical cyclone | 130 km/h (80 mph) | 965 hPa (28.50 inHg) | Unknown | Unknown | ||
| Betty | March 30 – April 12 | Category 3 severe tropical cyclone | 155 km/h (100 mph) | 965 hPa (28.50 inHg) | Unknown | Unknown | [4] | |
| Season aggregates | ||||||||
| 6 systems | November 20, 1974 – April 12, 1975 | 155 km/h (100 mph) | 965 hPa (28.50 inHg) | |||||
See also
- Atlantic hurricane seasons: 1974, 1975
- Eastern Pacific hurricane seasons: 1974, 1975
- Western Pacific typhoon seasons: 1974, 1975
- North Indian Ocean cyclone seasons: 1974, 1975
- List of tropical cyclone records
References
- ^ a b c d "Saison des perturbations tropicales: 1974-1975 dans le pacifique sud-oues". Météorologie Maritime (in French). No. 137. 1976. pp. 43–46. ISSN 2107-0830.
- ^ "1974 Not Named (1974324S24156)". International Best Track Archive for Climate Stewardship. Retrieved November 5, 2019.
- ^ "1974 Tropical Cyclone (Gale) Not Named (1974325S24166)". International Best Track Archive for Climate Stewardship. Retrieved November 5, 2019.
- ^ "1975 Tropical Cyclone Betty (1975089S17163)". International Best Track Archive for Climate Stewardship. Retrieved April 5, 2022.
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