Hurricane History Map

2009 Western North Pacific season

30 storms formed in the Western North Pacific basin in 2009, from 30 April 2009 to 5 December 2009.

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Years2009
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 2009 season in numbers

The record holds 30 storms for the 2009 Western North Pacific season, of which 22 had names.23 reached tropical storm strength (34 knots or more), 15 reached typhoon strength (category 1 or more) and 7 were major (category 3 or more). 2 have no wind speed in the record.

  • 30storms
  • 23tropical storm strength or more
  • 15typhoon strength or more
  • 7major (category 3 to 5)
  • 278accumulated 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 2009

  • Nida (2009)21 November 2009 to 3 December 2009, peak Category 5 (155 kt), 905 hPa
  • Melor (2009)28 September 2009 to 11 October 2009, peak Category 5 (150 kt), 910 hPa
  • Choi-Wan (2009)11 September 2009 to 20 September 2009, peak Category 5 (140 kt), 915 hPa
  • Lupit (2009)13 October 2009 to 30 October 2009, peak Category 5 (140 kt), 930 hPa
  • Parma (2009)27 September 2009 to 14 October 2009, peak Category 4 (135 kt), 930 hPa

All 30 storms of 2009

StormPeak
Kujira Category 4
Chan-Hom Category 2
Linfa Category 1
Nangka Tropical storm
Soudelor Tropical storm
Unnamed storm Tropical depression
Molave Category 1
Goni Tropical storm
Morakot Category 1
Etau Tropical storm
Vamco Category 4
Krovanh Category 1
Dujuan Tropical storm
Mujigae Tropical depression
Choi-Wan Category 5
Koppu Category 1
Ketsana Category 2
Unnamed storm Tropical depression
Parma Category 4
Melor Category 5
Nepartak Tropical storm
Lupit Category 5
Unnamed storm Unknown intensity
Mirinae Category 2
Unnamed storm Tropical depression
Unnamed storm Tropical storm
Unnamed storm Tropical depression
Nida Category 5
Unnamed storm Unknown intensity
Unnamed storm Tropical storm

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Other basins in 2009

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