Hurricane History Map

1973 Eastern and central Pacific season

12 storms formed in the Eastern and central Pacific basin in 1973, from 2 June 1973 to 9 October 1973.

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Years1973
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 1973 season in numbers

The record holds 12 storms for the 1973 Eastern and central Pacific season, of which 12 had names.12 reached tropical storm strength (34 knots or more), 7 reached hurricane strength (category 1 or more) and 3 were major (category 3 or more).

  • 12storms
  • 12tropical storm strength or more
  • 7hurricane strength or more
  • 3major (category 3 to 5)
  • 115accumulated 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 1973

  • Ava (1973)2 June 1973 to 12 June 1973, peak Category 5 (140 kt), 915 hPa
  • Doreen (1973)18 July 1973 to 3 August 1973, peak Category 4 (120 kt), 968 hPa
  • Emily (1973)21 July 1973 to 28 July 1973, peak Category 4 (120 kt), 972 hPa
  • Irah (1973)22 September 1973 to 27 September 1973, peak Category 2 (95 kt), 955 hPa
  • Katherine (1973)29 September 1973 to 9 October 1973, peak Category 2 (85 kt), 978 hPa

All 12 storms of 1973

StormPeak
Ava Category 5
Bernice Tropical storm
Claudia Tropical storm
Doreen Category 4
Emily Category 4
Florence Category 1
Glenda Tropical storm
Heather Tropical storm
Irah Category 2
Jennifer Tropical storm
Katherine Category 2
Lillian Category 1

← 1972 · 1974 → · All seasons

Other basins in 1973

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