1977 Western North Pacific season

28 storms formed in the Western North Pacific basin in 1977, from 10 January 1977 to 8 January 1978.

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Years1977
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 1977 season in numbers

The record holds 28 storms for the 1977 Western North Pacific season, of which 19 had names.21 reached tropical storm strength (34 knots or more), 11 reached typhoon strength (category 1 or more) and 4 were major (category 3 or more). 5 have no wind speed in the record.

  • 28storms
  • 21tropical storm strength or more
  • 11typhoon strength or more
  • 4major (category 3 to 5)
  • 173accumulated 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 1977

  • Babe (1977)31 August 1977 to 12 September 1977, peak Category 4 (130 kt), 905 hPa
  • Kim (1977)4 November 1977 to 17 November 1977, peak Category 4 (125 kt), 920 hPa
  • Lucy (1977)26 November 1977 to 9 December 1977, peak Category 4 (115 kt), 920 hPa
  • Vera (1977)25 July 1977 to 3 August 1977, peak Category 3 (110 kt), 925 hPa
  • Mary (1977)18 December 1977 to 8 January 1978, peak Category 2 (95 kt), 945 hPa

All 28 storms of 1977

StormPeak
Unnamed storm Unknown intensity
Patsy Tropical storm
Unnamed storm Tropical depression
Ruth Tropical storm
Unnamed storm Tropical depression
Sarah Category 1
Thelma Category 2
Vera Category 3
Wanda Tropical storm
Unnamed storm Unknown intensity
Unnamed storm Unknown intensity
Amy Tropical storm
Unnamed storm Tropical storm
Unnamed storm Unknown intensity
Carla Tropical storm
Babe Category 4
Dinah Category 1
Emma Tropical storm
Freda Tropical storm
Gilda Category 1
Unnamed storm Tropical storm
Unnamed storm Unknown intensity
Harriet Tropical storm
Ivy Category 2
Jean Category 1
Kim Category 4
Lucy Category 4
Mary Category 2

← 1976 · 1978 → · All seasons

Other basins in 1977

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