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WESTERN PACIFIC · SEASON MAP

1951 Pacific typhoon season

Every recorded track, mapped · 34 storms · 19 Feb 1951–18 Dec 1951

ACCUMULATED CYCLONE ENERGY269.5
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1951 Pacific typhoon season: every recorded storm trackRecorded tracks of all 34 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 BengalUnnamed: 19 Feb–21 Feb, no US-agency windGeorgia: 18 Mar–25 Mar, peak 120 kt, Category 4Hope: 15 Apr–23 Apr, peak 70 kt, Category 1Iris: 29 Apr–11 May, peak 150 kt, Category 5Joan: 3 May–11 May, peak 75 kt, Category 1Unnamed: 12 May–13 May, no US-agency windUnnamed: 17 Jun–21 Jun, no US-agency windKate: 25 Jun–2 Jul, peak 100 kt, Category 3Unnamed: 30 Jun–5 Jul, no US-agency windUnnamed: 21 Jul–25 Jul, no US-agency windUnnamed: 22 Jul–24 Jul, no US-agency windUnnamed: 24 Jul–26 Jul, no US-agency windUnnamed: 27 Jul–27 Jul, no US-agency windLouise: 25 Jul–5 Aug, peak 120 kt, Category 4Unnamed: 4 Aug–6 Aug, no US-agency windUnnamed: 5 Aug–7 Aug, no US-agency windUnnamed: 9 Aug–17 Aug, no US-agency windMarge: 10 Aug–24 Aug, peak 100 kt, Category 3Unnamed: 22 Aug–23 Aug, no US-agency windNora: 27 Aug–4 Sep, peak 100 kt, Category 3Unnamed: 2 Sep–13 Sep, no US-agency windUnnamed: 8 Sep–8 Sep, no US-agency windOra: 12 Sep–22 Sep, peak 85 kt, Category 2Pat: 22 Sep–28 Sep, peak 90 kt, Category 2Unnamed: 3 Oct–7 Oct, no US-agency windRuth: 7 Oct–15 Oct, peak 120 kt, Category 4Unnamed: 19 Oct–19 Oct, no US-agency windSarah: 22 Oct–25 Oct, peak 100 kt, Category 3Thelma: 26 Oct–31 Oct, peak 125 kt, Category 4Vera: 29 Oct–1 Nov, peak 60 kt, Tropical stormWanda: 16 Nov–26 Nov, peak 90 kt, Category 2Unnamed: 26 Nov–27 Nov, no US-agency windAmy: 3 Dec–18 Dec, peak 120 kt, Category 4Babs: 10 Dec–17 Dec, peak 100 kt, Category 3

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Whole season

DepressionTropical stormCat 1Cat 2Cat 3Cat 4Cat 5Post-tropical
Every storm of the 1951 Pacific typhoon season. Column headers sort the list.
Unnamed–—Unclassified9901,970
Georgia–120Cat 49702,000
Hope–70Cat 19801,810
Iris–150Cat 59094,960
Joan–75Cat 19803,860
Unnamed–—Unclassified—630
Unnamed–—Unclassified—700
Kate–100Cat 39752,950
Unnamed–—Unclassified9923,350
Unnamed–—Unclassified—1,240
Unnamed–—Unclassified—1,100
Unnamed–—Unclassified1005910
Louise–120Cat 49042,890
Unnamed–—Unclassified—970
Unnamed–—Unclassified—1,070
Unnamed–—Unclassified—630
Unnamed–—Unclassified9892,000
Marge–100Cat 38863,140
Unnamed–—Unclassified—1,290
Nora–100Cat 39702,450
Unnamed–—Unclassified—2,740
Unnamed–—Unclassified—1,220
Ora–85Cat 29702,450
Pat–90Cat 29804,940
Unnamed–—Unclassified—900
Ruth–120Cat 49245,090
Unnamed–—Unclassified—330
Sarah–100Cat 39602,400
Thelma–125Cat 49503,770
Vera–60Tropical storm9803,100
Wanda–90Cat 29852,360
Unnamed–—Unclassified—1,250
Amy–120Cat 49502,620
Babs–100Cat 39804,050

34 storms with an IBTrACS 1951 typhoon season record. Tracks are the archived center positions, first observation 19 Feb 1951, last 18 Dec 1951.

Tropical storms17

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

Typhoons16

64 kt or more, one-minute sustained

Major (Category 3+)11

96 kt or more, Saffir–Simpson scale

Category 51

137 kt or more at any tropical-stage observation

Strongest stormIris

150 kt · 173 mph / 278 km/h

Lowest pressure886 hPa

Marge, 15 Aug 1951

Longest track record16.3 days

Iris, full archive record

Storms without US-agency wind17

Mapped, but outside the counts above

QUICK ANSWERS

The 1951 season in brief

How many typhoons were there in the 1951 Pacific typhoon season?

The archive records 16 typhoons (one-minute winds of 64 kt or more) among 17 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 1951 Pacific typhoon season?

Iris, with a peak one-minute sustained wind of 150 kt (Category 5) on 4 May 1951, 00:00 UTC and a minimum central pressure of 909 hPa.

How many Category 5 storms were there in 1951?

1 storm in the 1951 Pacific typhoon season reached Category 5 on the Saffir–Simpson one-minute wind scale: Iris.

When did the 1951 Pacific typhoon season start and end?

The first tropical-stage observation is on 19 Feb 1951 and the last on 18 Dec 1951, from 34 tracked storms in the archive.

What was the first typhoon of the 1951 Pacific typhoon season?

Georgia, which reached typhoon strength (64 kt) on 20 Mar 1951, 03:00 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 1951 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