hurricanesmapped

WESTERN PACIFIC · SEASON MAP

1991 Pacific typhoon season

Every recorded track, mapped · 33 storms · 5 Mar 1991–5 Dec 1991

ACCUMULATED CYCLONE ENERGY412.9
Open in the explorerExplore
1991 Pacific typhoon season: every recorded storm trackRecorded tracks of all 33 storms, colored by the wind category at each observation. Hover or focus a storm in the table to highlight its track.UNITED STATESCANADAMEXICOAFRICAEUROPECHINAJAPANPHILIPPINESINDIAGulf of MexicoPacific OceanPhilippine SeaArabian SeaBay of BengalSharon: 5 Mar–16 Mar, peak 60 kt, Tropical stormTim: 20 Mar–27 Mar, peak 70 kt, Category 1Vanessa: 23 Apr–28 Apr, peak 45 kt, Tropical stormWalt: 6 May–17 May, peak 140 kt, Category 5Yunya: 11 Jun–17 Jun, peak 105 kt, Category 3Unnamed: 14 Jun–19 Jun, no US-agency windZeke: 9 Jul–15 Jul, peak 80 kt, Category 1Amy: 14 Jul–20 Jul, peak 125 kt, Category 4Brendan: 19 Jul–25 Jul, peak 70 kt, Category 1Caitlin: 21 Jul–30 Jul, peak 95 kt, Category 2Brendan: 25 Jul–28 Jul, no US-agency windDoug: 7 Aug–11 Aug, peak 35 kt, Tropical stormFred: 11 Aug–18 Aug, peak 95 kt, Category 2Ellie: 10 Aug–19 Aug, peak 85 kt, Category 2Unnamed: 11 Aug–13 Aug, no US-agency windGladys: 15 Aug–24 Aug, peak 65 kt, Category 1Unnamed: 23 Aug–30 Aug, peak 30 kt, Tropical depressionHarry: 28 Aug–31 Aug, peak 40 kt, Tropical stormIvy: 2 Sep–10 Sep, peak 115 kt, Category 4Joel: 2 Sep–8 Sep, peak 55 kt, Tropical stormKinna: 10 Sep–14 Sep, peak 90 kt, Category 2Mireille: 13 Sep–28 Sep, peak 130 kt, Category 4Luke: 14 Sep–19 Sep, peak 50 kt, Tropical stormNat: 14 Sep–3 Oct, peak 110 kt, Category 3Pat: 4 Oct–13 Oct, peak 125 kt, Category 4Orchid: 3 Oct–13 Oct, peak 115 kt, Category 4Ruth: 19 Oct–30 Oct, peak 145 kt, Category 5Seth: 31 Oct–15 Nov, peak 130 kt, Category 4Thelma: 31 Oct–8 Nov, peak 45 kt, Tropical stormVerne: 5 Nov–12 Nov, peak 55 kt, Tropical stormWilda: 13 Nov–20 Nov, peak 45 kt, Tropical stormYuri: 22 Nov–1 Dec, peak 150 kt, Category 5Zelda: 27 Nov–5 Dec, peak 80 kt, Category 1

Drag to pan · Pinch or Ctrl/⌘ + scroll to zoom. Keyboard: plus or minus to zoom, arrow keys to pan, and 0 to show the whole map.

Whole season

DepressionTropical stormCat 1Cat 2Cat 3Cat 4Cat 5Post-tropical
Every storm of the 1991 Pacific typhoon season. Column headers sort the list.
Sharon–60Tropical storm9852,960
Tim–70Cat 19701,990
Vanessa–45Tropical storm9942,480
Walt–140Cat 59154,490
Yunya–105Cat 3950960
Unnamed–—Unclassified—340
Zeke–80Cat 19702,360
Amy–125Cat 49302,470
Brendan–70Cat 19803,140
Caitlin–95Cat 29403,570
Brendan–—Unclassified—410
Doug–35Tropical storm—1,110
Ellie–85Cat 29602,610
Fred–95Cat 29602,090
Unnamed–—Unclassified—1,100
Gladys–65Cat 19652,520
Unnamed–30Tropical depression9922,010
Harry–40Tropical storm9923,080
Ivy–115Cat 49354,950
Joel–55Tropical storm9851,220
Kinna–90Cat 29554,400
Mireille–130Cat 49256,030
Luke–50Tropical storm9804,060
Nat–110Cat 39503,030
Orchid–115Cat 49304,330
Pat–125Cat 49253,200
Ruth–145Cat 58954,770
Seth–130Cat 49253,830
Thelma–45Tropical storm9922,050
Verne–55Tropical storm9804,330
Wilda–45Tropical storm9921,840
Yuri–150Cat 58955,110
Zelda–80Cat 19753,460

33 storms with an IBTrACS 1991 typhoon season record. Tracks are the archived center positions, first observation 5 Mar 1991, last 5 Dec 1991.

Tropical storms29

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

Typhoons20

64 kt or more, one-minute sustained

Major (Category 3+)11

96 kt or more, Saffir–Simpson scale

Category 53

137 kt or more at any tropical-stage observation

Strongest stormYuri

150 kt · 173 mph / 278 km/h

Lowest pressure895 hPa

Ruth, 24 Oct 1991

Longest track record19.3 days

Nat, full archive record

Storms without US-agency wind3

Mapped, but outside the counts above

QUICK ANSWERS

The 1991 season in brief

How many typhoons were there in the 1991 Pacific typhoon season?

The archive records 20 typhoons (one-minute winds of 64 kt or more) among 29 tropical storms, with 11 major typhoons reaching 96 kt. Counts use US-agency winds during the tropical stage.

What was the strongest storm of the 1991 Pacific typhoon season?

Yuri, with a peak one-minute sustained wind of 150 kt (Category 5) on 27 Nov 1991, 06:00 UTC and a minimum central pressure of 895 hPa.

How many Category 5 storms were there in 1991?

3 storms in the 1991 Pacific typhoon season reached Category 5 on the Saffir–Simpson one-minute wind scale: Walt, Ruth, Yuri.

When did the 1991 Pacific typhoon season start and end?

The first tropical-stage observation is on 5 Mar 1991 and the last on 5 Dec 1991, from 33 tracked storms in the archive.

What was the first typhoon of the 1991 Pacific typhoon season?

Tim, which reached typhoon strength (64 kt) on 23 Mar 1991, 06:00 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 Western Pacific 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 typhoon 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 Western Pacific 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