1974–75 South Pacific cyclone season

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1974–75 South Pacific cyclone season
1974-1975 South Pacific cyclone season summary.jpg
Season summary map
Seasonal boundaries
First system formedNovember 20, 1974
Last system dissipatedApril 6, 1975
Strongest storm
NameVal and Alison
 • Maximum winds155 km/h (100 mph)
(10-minute sustained)
 • Lowest pressure945 hPa (mbar)
Seasonal statistics
Total disturbances6
Tropical cyclones5
Severe tropical cyclones3
Total fatalitiesUnknown
Total damageUnknown
Related articles
South Pacific tropical cyclone seasons
1972–73, 1973–74, 1974–75, 1975–76, 1976–77

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[]

Tropical storm (SSHWS)
Temporary cyclone south.svg 04P 1974 track.png
DurationDecember 6 – December 9
Peak intensity65 km/h (40 mph) (1-min) 

This cyclone existed from December 6 to December 9.

Cyclone 05P[]

Tropical storm (SSHWS)
Temporary cyclone south.svg 05P 1974 track.png
DurationDecember 11 – December 15
Peak intensity85 km/h (50 mph) (1-min) 

This cyclone existed from December 11 to December 15.

Cyclone 06P[]

Tropical storm (SSHWS)
Temporary cyclone south.svg 06P 1974 track.png
DurationDecember 18 – December 24
Peak intensity95 km/h (60 mph) (1-min) 

This cyclone existed from December 18 to December 24.

Tropical Cyclone Flora[]

Category 2 tropical cyclone (Australian scale)
Tropical storm (SSHWS)
Temporary cyclone south.svg Flora 1975 track.png
DurationJanuary 12 – January 22
Peak intensity100 km/h (65 mph) (10-min)  980 hPa (mbar)

Tropical Cyclone Flora existed from January 12 to January 22.

Tropical Cyclone Gloria[]

Category 2 tropical cyclone (Australian scale)
Tropical storm (SSHWS)
Temporary cyclone south.svg Gloria 1975 track.png
DurationJanuary 19 – January 23
Peak intensity100 km/h (65 mph) (10-min)  976 hPa (mbar)

Tropical Cyclone Gloria existed from January 14 to January 23.

Cyclone 15P[]

Tropical storm (SSHWS)
Temporary cyclone south.svg 15P 1975 track.png
DurationJanuary 19 – January 21
Peak intensity65 km/h (40 mph) (1-min) 

This cyclone existed from January 19 to January 21.

Severe Tropical Cyclone Val[]

Category 3 severe tropical cyclone (Australian scale)
Category 4 tropical cyclone (SSHWS)
ValJanuary301975.gif Val 1975 track.png
DurationJanuary 24 – February 5
Peak intensity155 km/h (100 mph) (10-min)  945 hPa (mbar)

This cyclone existed from January 24 to February 5.

Cyclone 18P[]

Tropical storm (SSHWS)
Temporary cyclone south.svg 18P 1975 track.png
DurationJanuary 26 – January 28
Peak intensity65 km/h (40 mph) (1-min) 

This cyclone existed from January 26 to January 28.

Severe Tropical Cyclone Alison[]

Category 3 severe tropical cyclone (Australian scale)
Category 4 tropical cyclone (SSHWS)
AlisonMarch61975.png Alison 1975 track.png
DurationMarch 4 – March 13
Peak intensity155 km/h (100 mph) (10-min)  945 hPa (mbar)

This cyclone existed from March 4 to March 13.

Severe Tropical Cyclone Betty[]

Category 3 severe tropical cyclone (Australian scale)
Category 2 tropical cyclone (SSHWS)
Temporary cyclone south.svg Betty SPac 1975 track.png
DurationMarch 30 – April 12
Peak intensity130 km/h (80 mph) (10-min)  965 hPa (mbar)

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 classification Sustained
wind speeds 		Pressure Areas affected Damage
(USD) 		Deaths Refs
Unnamed November 20 - 24, 1974 Moderate tropical depression 85 km/h (50 mph) 994 hPa (29.35 inHg) New Caledonia [1]
Betty March 30 – April 12, 1975 Category 3 severe tropical cyclone 130 km/h (80 mph) 965 hPa (28.50 inHg) Vanuatu, Fiji, New Zealand [4]
Season aggregates
8 systems November 19 – May 12

See also[]

References[]

  1. ^ Jump up to: 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.
  2. ^ "1974 Not Named (1974324S24156)". International Best Track Archive for Climate Stewardship. Retrieved November 5, 2019.
  3. ^ "1974 Tropical Cyclone (Gale) Not Named (1974325S24166)". International Best Track Archive for Climate Stewardship. Retrieved November 5, 2019.
  4. ^ MetService (May 22, 2009). "TCWC Wellington Best Track Data 1967–2006". International Best Track Archive for Climate Stewardship.[permanent dead link]

External links[]

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