Hurricane History Map

1974 Eastern and central Pacific season

24 storms formed in the Eastern and central Pacific basin in 1974, from 28 May 1974 to 24 October 1974.

Tap or scroll to load the interactive map

Years1974
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 1974 season in numbers

The record holds 24 storms for the 1974 Eastern and central Pacific season, of which 17 had names.17 reached tropical storm strength (34 knots or more), 10 reached hurricane strength (category 1 or more) and 3 were major (category 3 or more).

  • 24storms
  • 17tropical storm strength or more
  • 10hurricane strength or more
  • 3major (category 3 to 5)
  • 87accumulated 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 1974

  • Maggie (1974)26 August 1974 to 1 September 1974, peak Category 4 (120 kt), 934 hPa
  • Connie (1974)7 June 1974 to 22 June 1974, peak Category 3 (110 kt), 942 hPa
  • Ione (1974)20 August 1974 to 31 August 1974, peak Category 3 (100 kt)
  • Gretchen (1974)17 July 1974 to 21 July 1974, peak Category 2 (85 kt)
  • Patricia (1974)6 October 1974 to 17 October 1974, peak Category 1 (80 kt), 964 hPa

All 24 storms of 1974

StormPeak
Aletta Tropical storm
Blanca Tropical storm
Connie Category 3
Dolores Category 1
Eileen Tropical storm
Unnamed storm Tropical depression
Francesca Category 1
Gretchen Category 2
Unnamed storm Tropical depression
Unnamed storm Tropical depression
Unnamed storm Tropical depression
Unnamed storm Tropical depression
Helga Tropical storm
Ione Category 3
Olive Tropical storm
Joyce Category 1
Kirsten Category 1
Lorraine Tropical storm
Maggie Category 4
Unnamed storm Tropical depression
Norma Category 1
Patricia Category 1
Unnamed storm Tropical depression
Rosalie Tropical storm

← 1973 · 1975 → · All seasons

Other basins in 1974

Embed this map

Copy this code into your web page. It is free to use. Please keep the link under the map, as it is how people find where the map comes from.