Hurricane History Map

2011 North Indian season

10 storms formed in the North Indian basin in 2011, from 2 February 2011 to 30 December 2011.

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Years2011
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 2011 season in numbers

The record holds 10 storms for the 2011 North Indian season, of which 2 had names.7 reached tropical storm strength (34 knots or more), 1 reached cyclone strength (category 1 or more) and 0 were major (category 3 or more).

  • 10storms
  • 7tropical storm strength or more
  • 1cyclone strength or more
  • 0major (category 3 to 5)
  • 11accumulated 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 2011

  • Thane (2011)25 December 2011 to 30 December 2011, peak Category 2 (90 kt), 969 hPa
  • Keila (2011)29 October 2011 to 5 November 2011, peak Tropical storm (55 kt), 996 hPa
  • Unnamed storm of June 2011 (North Indian)16 June 2011 to 22 June 2011, peak Tropical storm (40 kt), 978 hPa
  • Unnamed storm of June 2011 (North Indian)9 June 2011 to 12 June 2011, peak Tropical storm (35 kt), 996 hPa
  • Unnamed storm of October 2011 (North Indian)17 October 2011 to 20 October 2011, peak Tropical storm (35 kt), 1,000 hPa

All 10 storms of 2011

StormPeak
Unnamed storm Tropical depression
Unnamed storm Tropical storm
Unnamed storm Tropical storm
Unnamed storm Tropical depression
Unnamed storm Tropical depression
Unnamed storm Tropical storm
Keila Tropical storm
Unnamed storm Tropical storm
Unnamed storm Tropical storm
Thane Category 2

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Other basins in 2011

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