1964 South-West Indian season

18 storms formed in the South-West Indian basin in 1964, from 5 December 1963 to 10 May 1964.

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Years1964
Ocean basin

Choosing a minimum category hides storms with no wind speed in the record. To see which storms have passed near you, search a town or ZIP code, or tap the map.

Key
  • Tropical depression Winds below 34 knots (39 mph)
  • Tropical storm 34 to 63 knots (39 to 73 mph)
  • Category 1 64 to 82 knots (74 to 95 mph)
  • Category 2 83 to 95 knots (96 to 110 mph)
  • Category 3 96 to 112 knots (111 to 129 mph), major
  • Category 4 113 to 136 knots (130 to 156 mph), major
  • Category 5 137 knots (157 mph) or more, major
  • Unknown intensity No wind speed in the record
  • Post-tropical Storm has become post-tropical (dashed line)

How to read the lines. Each line is the track of one storm, drawn through its six-hourly positions and coloured by its intensity at each point (the Saffir-Simpson scale), so a line changes colour as the storm strengthens or weakens. Tap a line for its details, or tap anywhere else to see which storms have passed nearby. Weaker storms appear as you zoom in. Hurricanes, typhoons and cyclones are the same kind of storm with different names in different oceans.

The 1964 season in numbers

The record holds 18 storms for the 1964 South-West Indian season, of which 17 had names.2 reached tropical storm strength (34 knots or more), 1 reached cyclone strength (category 1 or more) and 0 were major (category 3 or more). 14 have no wind speed in the record.

  • 18storms
  • 2tropical storm strength or more
  • 1cyclone strength or more
  • 0major (category 3 to 5)
  • 2accumulated cyclone energy

Accumulated cyclone energy adds up the squared wind speed of every position of 34 knots or more, divided by 10,000. It is approximate here because the winds are 1-minute equivalents, and it is mostly useful for comparing seasons of one basin.

Strongest storms of 1964

  • Hazel (1964)6 March 1964 to 17 March 1964, peak Category 1 (65 kt)
  • Eva (1964)24 February 1964 to 2 March 1964, peak Tropical storm (40 kt)
  • Dora (1964)28 January 1964 to 11 February 1964, peak Tropical depression (25 kt)
  • Norma (1964)2 April 1964 to 6 April 1964, peak Tropical depression (15 kt)

All 18 storms of 1964

StormPeak
Amanda Unknown intensity
Betty Unknown intensity
Bessie Unknown intensity
Christine Unknown intensity
Danielle Unknown intensity
Dora Tropical depression
Eileen Unknown intensity
Frances Unknown intensity
Giselle Unknown intensity
Eva Tropical storm
Harriet Unknown intensity
Hazel Category 1
Katie Unknown intensity
Unnamed storm Unknown intensity
Ingrid Unknown intensity
Norma Tropical depression
Jose Unknown intensity
Karen Unknown intensity

← 1963 · 1965 → · All seasons

Other basins in 1964

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