Hurricane History Map

1991 North Atlantic season

12 storms formed in the North Atlantic basin in 1991, from 29 June 1991 to 2 November 1991.

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Years1991
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 1991 season in numbers

The record holds 12 storms for the 1991 North Atlantic season, of which 7 had names.8 reached tropical storm strength (34 knots or more), 4 reached hurricane strength (category 1 or more) and 2 were major (category 3 or more).

  • 12storms
  • 8tropical storm strength or more
  • 4hurricane strength or more
  • 2major (category 3 to 5)
  • 36accumulated 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 1991

  • Claudette (1991)4 September 1991 to 14 September 1991, peak Category 4 (115 kt), 946 hPa
  • Bob (1991)16 August 1991 to 29 August 1991, peak Category 3 (100 kt), 950 hPa
  • Grace (1991)25 October 1991 to 29 October 1991, peak Category 2 (85 kt), 980 hPa
  • Unnamed storm of October 1991 (North Atlantic)28 October 1991 to 2 November 1991, peak Category 1 (65 kt), 980 hPa
  • Erika (1991)8 September 1991 to 12 September 1991, peak Tropical storm (50 kt), 997 hPa

All 12 storms of 1991

StormPeak
Ana Tropical storm
Unnamed storm Tropical depression
Bob Category 3
Unnamed storm Tropical depression
Unnamed storm Tropical depression
Claudette Category 4
Danny Tropical storm
Erika Tropical storm
Fabian Tropical storm
Unnamed storm Tropical depression
Grace Category 2
Unnamed storm Category 1

← 1990 · 1992 → · All seasons

Other basins in 1991

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