Hurricane History Map

1971 Western North Pacific season

50 storms formed in the Western North Pacific basin in 1971, from 8 January 1971 to 29 December 1971.

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Years1971
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 1971 season in numbers

The record holds 50 storms for the 1971 Western North Pacific season, of which 34 had names.33 reached tropical storm strength (34 knots or more), 23 reached typhoon strength (category 1 or more) and 11 were major (category 3 or more). 15 have no wind speed in the record.

  • 50storms
  • 33tropical storm strength or more
  • 23typhoon strength or more
  • 11major (category 3 to 5)
  • 374accumulated 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 1971

  • Irma (1971)7 November 1971 to 17 November 1971, peak Category 5 (155 kt), 885 hPa
  • Amy (1971)27 April 1971 to 7 May 1971, peak Category 5 (150 kt), 890 hPa
  • Nadine (1971)19 July 1971 to 27 July 1971, peak Category 5 (150 kt), 900 hPa
  • Wendy (1971)3 September 1971 to 15 September 1971, peak Category 5 (140 kt), 915 hPa
  • Bess (1971)15 September 1971 to 26 September 1971, peak Category 5 (140 kt), 905 hPa

All 50 storms of 1971

StormPeak
Sarah Tropical storm
Thelma Tropical storm
Unnamed storm Unknown intensity
Vera Category 2
Wanda Category 1
Amy Category 5
Babe Tropical storm
Unnamed storm Unknown intensity
Carla Tropical storm
Dinah Category 2
Emma Tropical storm
Freda Category 1
Unnamed storm Unknown intensity
Gilda Category 2
Harriet Category 4
Ivy Tropical storm
Kim Tropical storm
Jean Category 2
Lucy Category 4
Nadine Category 5
Lucy Unknown intensity
Olive Category 2
Polly Tropical storm
Rose Category 4
Unnamed storm Unknown intensity
Shirley Category 2
Trix Category 3
Unnamed storm Tropical depression
Unnamed storm Unknown intensity
Virginia Category 3
Wendy Category 5
Agnes Category 1
Unnamed storm Unknown intensity
Unnamed storm Tropical depression
Bess Category 5
Carmen Tropical storm
Della Category 1
Unnamed storm Unknown intensity
Elaine Category 3
Faye:gloria Category 1
Unnamed storm Unknown intensity
Unnamed storm Unknown intensity
Hester Category 2
Unnamed storm Unknown intensity
Unnamed storm Unknown intensity
Irma Category 5
Judy Tropical storm
Unnamed storm Unknown intensity
Unnamed storm Unknown intensity
Unnamed storm Unknown intensity

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Other basins in 1971

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