1969–70 South-West Indian Ocean cyclone season

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

1969–70 South-West Indian Ocean cyclone season
Season summary map
Seasonal boundaries
First system formedAugust 19, 1969
Last system dissipatedApril 1, 1970
Strongest storm
NameJane
  Maximum winds230 km/h (145 mph)
(1-minute sustained)
Seasonal statistics
Total depressions13
Total storms13
Tropical cyclones6
Intense tropical cyclones0
Very intense tropical cyclones2
Total fatalities30
Total damageUnknown
Related articles

Systems

Severe Tropical Storm Aline

Severe tropical storm (MFR)
 
DurationAugust 19 – August 22
Peak intensity100 km/h (65 mph) (10-min);

Aline existed from August 19 to August 22.

Tropical Cyclone Blanche

Tropical cyclone (MFR)
 
DurationOctober 7 – October 15
Peak intensity130 km/h (80 mph) (10-min);

October 7 to October 15.

Moderate Tropical Storm Corrine

Moderate tropical storm (MFR)
 
DurationNovember 11 – November 21
Peak intensity85 km/h (50 mph) (10-min);

26 deaths in Comoros and Mozambique.[1]

Moderate Tropical Storm Delphine

Moderate tropical storm (MFR)
 
DurationDecember 29 – January 1
Peak intensity65 km/h (40 mph) (10-min);

Delphine existed from December 29 to January 1.

Tropical Cyclone Diane–Francoise

Tropical cyclone (MFR)
 
DurationJanuary 10 (entered basin) – January 16
Peak intensity130 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)
 
DurationJanuary 7 – January 11
Peak intensity65 km/h (40 mph) (10-min);

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

Tropical Cyclone Genevieve

Tropical cyclone (MFR)
 
DurationJanuary 10 – January 19
Peak intensity120 km/h (75 mph) (10-min);

Four deaths in Madagascar due to flooding.[3]

Tropical Cyclone Hermine

Tropical cyclone (MFR)
 
DurationJanuary 22 – January 27
Peak intensity120 km/h (75 mph) (10-min);

One death on Reunion.[4]

Very Intense Tropical Cyclone Harriet-Iseult

Very intense tropical cyclone (MFR)
 
DurationFebruary 3 (entered basin) – February 13
Peak intensity220 km/h (140 mph) (10-min);

Iseult existed from February 2 to February 15.

Very Intense Tropical Cyclone Josephine-Jane

Very intense tropical cyclone (MFR)
 
DurationFebruary 11 (entered basin) – February 28
Peak intensity230 km/h (145 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)
 
DurationMarch 16 – March 26
Peak intensity85 km/h (50 mph) (10-min);

Katia existed from March 16 to March 26.

Tropical Cyclone Louise

Tropical cyclone (MFR)
 
DurationMarch 20 – April 1
Peak intensity155 km/h (100 mph) (10-min);

Louise existed from March 20 to April 1.

Tropical Cyclone Kathy–Michelle

Tropical cyclone (MFR)
 
DurationMarch 26 (entered basin) – March 30
Peak intensity140 km/h (85 mph) (10-min);

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

See also

  • Atlantic hurricane seasons: 1969, 1970
  • Eastern Pacific hurricane seasons: 1969, 1970
  • Western Pacific typhoon seasons: 1969, 1970
  • North Indian Ocean cyclone seasons: 1969, 1970

References

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