Hurricane History Map

2009 North Atlantic season

11 storms formed in the North Atlantic basin in 2009, from 26 May 2009 to 11 November 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 11 storms for the 2009 North Atlantic season, of which 9 had names.9 reached tropical storm strength (34 knots or more), 3 reached hurricane strength (category 1 or more) and 2 were major (category 3 or more).

  • 11storms
  • 9tropical storm strength or more
  • 3hurricane strength or more
  • 2major (category 3 to 5)
  • 53accumulated 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

  • Bill (2009)15 August 2009 to 26 August 2009, peak Category 4 (115 kt), 943 hPa
  • Fred (2009)7 September 2009 to 19 September 2009, peak Category 3 (105 kt), 958 hPa
  • Ida (2009)4 November 2009 to 11 November 2009, peak Category 2 (90 kt), 975 hPa
  • Grace (2009)27 September 2009 to 6 October 2009, peak Tropical storm (55 kt), 986 hPa
  • Claudette (2009)16 August 2009 to 17 August 2009, peak Tropical storm (50 kt), 1,005 hPa

All 11 storms of 2009

StormPeak
Unnamed storm Tropical depression
Ana Tropical storm
Bill Category 4
Claudette Tropical storm
Danny Tropical storm
Erika Tropical storm
Fred Category 3
Unnamed storm Tropical depression
Grace Tropical storm
Henri Tropical storm
Ida Category 2

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Other basins in 2009

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