1969–70 South-West Indian Ocean cyclone season

1969–70 South-West Indian Ocean cyclone season
Season summary map
First system formed August 19, 1969
Last system dissipated April 1, 1970
Strongest storm1  – (1-minute sustained)
Total depressions 13
Total storms 13
Tropical cyclones 8
Total fatalities 30
Total damage Unknown
1Strongest storm is determined by lowest pressure
South-West Indian Ocean tropical cyclone seasons
1967–68, 1968–69, 1969–70, 1970–71 1971–72
Related articles

The 1969–70 South-West Indian Ocean cyclone season was an active cyclone season.

Storms

Moderate Tropical Storm Aline

Severe tropical storm (MFR)
Clockwise vortex
Duration August 19 – August 22
Peak intensity 100 km/h (65 mph) (10-min) 

Aline existed from August 19 to August 22.

Tropical Cyclone Blanche

Tropical cyclone (MFR)
Clockwise vortex
Duration October 7 – October 15
Peak intensity 130 km/h (80 mph) (10-min) 

October 7 to October 15.

Moderate Tropical Storm Corrine

Severe tropical storm (MFR)
Clockwise vortex
Duration November 11 – November 21
Peak intensity 95 km/h (60 mph) (10-min) 

26 deaths in Comoros and Mozambique.[1]

Moderate Tropical Storm Delphine

Moderate tropical storm (MFR)
Clockwise vortex
Duration December 29 – January 1
Peak intensity 65 km/h (40 mph) (10-min) 

Delphine existed from December 29 to January 1.

Tropical Cyclone Diane-Francoise

Tropical cyclone (MFR)
Clockwise vortex
Duration January 7 (entered basin) – January 17
Peak intensity 130 km/h (80 mph) (10-min) 

This system entered the basin on January 7 and dissipated on January 17.

Moderate Tropical Storm Eliane

Moderate tropical storm (MFR)
Clockwise vortex
Duration January 7 – February 11
Peak intensity 65 km/h (40 mph) (10-min) 

The storm struck western Madagascar, bringing rainfall.[2]

Tropical Cyclone Genevieve

Tropical cyclone (MFR)
Clockwise vortex
Duration January 10 – January 19
Peak intensity 120 km/h (75 mph) (10-min) 

Four deaths in Madagascar due to flooding.[3]

Tropical Cyclone Hermine

Tropical cyclone (MFR)
Clockwise vortex
Duration January 22 – January 27
Peak intensity 120 km/h (75 mph) (10-min) 

One death on Reunion.[4]

Intense Tropical Cyclone Iseult

Tropical cyclone (MFR)
Category 4 tropical cyclone (SSHWS)
Clockwise vortex
Duration February 2 – February 15
Peak intensity 120 km/h (75 mph) (10-min) 

Iseult existed from February 2 to February 15.

Severe Tropical Storm Jane

Tropical cyclone (MFR)
Category 4 tropical cyclone (SSHWS)
Duration February 10 – March 2
Peak intensity 120 km/h (75 mph) (10-min) 

It was named Josephine in its formative stages due to being in what was considered the Australian basin at the time.[5]

Moderate Tropical Storm Katia

Moderate tropical storm (MFR)
Clockwise vortex
Duration March 16 – March 26
Peak intensity 85 km/h (50 mph) (10-min) 

Katia existed from March 16 to March 26.

Tropical Cyclone Louise

Tropical cyclone (MFR)
Clockwise vortex
Duration March 20 – April 1
Peak intensity 155 km/h (100 mph) (10-min) 

Louise existed from March 20 to April 1.

Tropical Cyclone Michelle

Tropical cyclone (MFR)
Clockwise vortex
Duration March 24 (entered basin) – March 30
Peak intensity 155 km/h (100 mph) (10-min) 

Michelle entered the basin on March 24 and dissipated on March 30.

See also

References

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