hurricanesmapped

NORTH ATLANTIC · SEASON MAP

1991 Atlantic hurricane season

Every recorded track, mapped · 12 storms · 2 Jul 1991–2 Nov 1991

ACCUMULATED CYCLONE ENERGY35.5
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1991 Atlantic hurricane season: every recorded storm trackRecorded tracks of all 12 storms, colored by the wind category at each observation. Hover or focus a storm in the table to highlight its track.UNITED STATESCANADAMEXICOCUBABRAZILAFRICAEUROPECHINAJAPANINDIAGulf of MexicoAtlantic OceanPacific OceanArabian SeaBay of BengalAna: 2 Jul–5 Jul, peak 45 kt, Tropical stormUnnamed: 5 Jul–7 Jul, peak 30 kt, Tropical depressionBob: 16 Aug–20 Aug, peak 100 kt, Category 3Unnamed: 24 Aug–26 Aug, peak 30 kt, Tropical depressionUnnamed: 28 Aug–31 Aug, peak 30 kt, Tropical depressionClaudette: 4 Sep–12 Sep, peak 115 kt, Category 4Danny: 7 Sep–11 Sep, peak 45 kt, Tropical stormErika: 8 Sep–12 Sep, peak 50 kt, Tropical stormFabian: 15 Oct–16 Oct, peak 40 kt, Tropical stormUnnamed: 24 Oct–25 Oct, peak 25 kt, Tropical depressionGrace: 27 Oct–29 Oct, peak 90 kt, Category 2Unnamed: 1 Nov–2 Nov, peak 65 kt, Category 1

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Whole season

DepressionTropical stormCat 1Cat 2Cat 3Cat 4Cat 5Post-tropical
Every storm of the 1991 Atlantic hurricane season. Column headers sort the list.
Ana–45Tropical storm10002,110
Unnamed–30Tropical depression—100
Bob–100Cat 39504,070
Unnamed–30Tropical depression1009390
Unnamed–30Tropical depression—1,300
Claudette–115Cat 49442,650
Danny–45Tropical storm9981,960
Erika–50Tropical storm9972,100
Fabian–40Tropical storm1002870
Unnamed–25Tropical depression1009320
Grace–90Cat 2980960
Unnamed–65Cat 19802,040

12 storms with an IBTrACS 1991 hurricane season record. Tracks are the archived center positions, first observation 2 Jul 1991, last 2 Nov 1991.

Tropical storms8

Tropical-stage US-agency wind of 34 kt or more

Hurricanes4

64 kt or more, one-minute sustained

Major (Category 3+)2

96 kt or more, Saffir–Simpson scale

Category 50

137 kt or more at any tropical-stage observation

Strongest stormClaudette

115 kt · 132 mph / 213 km/h

Lowest pressure944 hPa

Claudette, 7 Sept 1991

Longest track record13 days

Bob, full archive record

Storms without US-agency wind0

Mapped, but outside the counts above

QUICK ANSWERS

The 1991 season in brief

How many hurricanes were there in the 1991 Atlantic hurricane season?

The archive records 4 hurricanes (one-minute winds of 64 kt or more) among 8 tropical storms, with 2 major hurricanes reaching 96 kt. Counts use US-agency winds during the tropical stage.

What was the strongest storm of the 1991 Atlantic hurricane season?

Claudette, with a peak one-minute sustained wind of 115 kt (Category 4) on 7 Sept 1991, 10:00 UTC and a minimum central pressure of 944 hPa.

How many Category 5 storms were there in 1991?

None. No storm in the 1991 Atlantic hurricane season reached Category 5 on the Saffir–Simpson one-minute wind scale in the archive.

When did the 1991 Atlantic hurricane season start and end?

The first tropical-stage observation is on 2 Jul 1991 and the last on 2 Nov 1991, from 12 tracked storms in the archive.

What was the first hurricane of the 1991 Atlantic hurricane season?

Bob, which reached hurricane strength (64 kt) on 17 Aug 1991, 18:00 UTC.

METHODOLOGY

Data sources and limitations

The map and totals are generated from NOAA’s IBTrACS v04r01 archive. A storm belongs to this page when the archive lists it in the North Atlantic basin for the 1991 season, so a December storm whose track ends in January stays with its season. Storms that cross between basins appear on the page of their archive basin only.

Counts use US-agency one-minute winds during the tropical stage: 34 kt for a tropical storm, 64 kt for hurricane strength and 96 kt for major intensity, on the Saffir–Simpson scale in every basin. Local agencies classify storms differently, and official season summaries can differ from the archive. Accumulated cyclone energy sums squared winds at six-hourly synoptic times, counting observations in the calendar year. Storms with no US-agency wind are mapped but cannot enter the counts.

The map frame is the same for every North Atlantic season, so a track that leaves it is cut at the edge. Lines show each storm’s center, not its size, rainfall or flood extent. Coastlines use Natural Earth’s 1:10m land data.

Archive retrieved

NOAA IBTrACS archive · Field documentation

Sources & methodology