hurricanesmapped

EASTERN PACIFIC · SEASON MAP

1974 Pacific hurricane season

Every recorded track, mapped · 24 storms · 28 May 1974–24 Oct 1974

ACCUMULATED CYCLONE ENERGY87.4
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1974 Pacific hurricane season: every recorded storm trackRecorded tracks of all 24 storms, colored by the wind category at each observation. Hover or focus a storm in the table to highlight its track.UNITED STATESMEXICOCUBACHINAJAPANPHILIPPINESINDIAGulf of MexicoAtlantic OceanPacific OceanPhilippine SeaArabian SeaBay of BengalAletta: 28 May–29 May, peak 50 kt, Tropical stormBlanca: 5 Jun–8 Jun, peak 50 kt, Tropical stormConnie: 7 Jun–22 Jun, peak 110 kt, Category 3Dolores: 14 Jun–16 Jun, peak 70 kt, Category 1Eileen: 2 Jul–4 Jul, peak 35 kt, Tropical stormUnnamed: 10 Jul–13 Jul, peak 30 kt, Tropical depressionFrancesca: 14 Jul–19 Jul, peak 65 kt, Category 1Gretchen: 17 Jul–21 Jul, peak 85 kt, Category 2Unnamed: 18 Jul–20 Jul, peak 30 kt, Tropical depressionUnnamed: 21 Jul–26 Jul, peak 30 kt, Tropical depressionUnnamed: 1 Aug–11 Aug, peak 30 kt, Tropical depressionUnnamed: 6 Aug–7 Aug, peak 30 kt, Tropical depressionHelga: 10 Aug–13 Aug, peak 40 kt, Tropical stormIone: 20 Aug–31 Aug, peak 100 kt, Category 3Olive: 21 Aug–26 Aug, peak 40 kt, Tropical stormJoyce: 22 Aug–27 Aug, peak 75 kt, Category 1Kirsten: 22 Aug–29 Aug, peak 75 kt, Category 1Lorraine: 23 Aug–28 Aug, peak 45 kt, Tropical stormMaggie: 26 Aug–1 Sep, peak 120 kt, Category 4Unnamed: 3 Sep–7 Sep, peak 30 kt, Tropical depressionNorma: 9 Sep–10 Sep, peak 65 kt, Category 1Patricia: 6 Oct–17 Oct, peak 80 kt, Category 1Unnamed: 14 Oct–15 Oct, peak 30 kt, Tropical depressionRosalie: 21 Oct–24 Oct, peak 55 kt, Tropical storm

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Whole season

DepressionTropical stormCat 1Cat 2Cat 3Cat 4Cat 5Post-tropical
Every storm of the 1974 Pacific hurricane season. Column headers sort the list.
Aletta–50Tropical storm992480
Blanca–50Tropical storm1001660
Connie–110Cat 39421,670
Dolores–70Cat 1—450
Eileen–35Tropical storm—400
Unnamed–30Tropical depression—530
Francesca–65Cat 19861,410
Gretchen–85Cat 2—1,220
Unnamed–30Tropical depression—630
Unnamed–30Tropical depression—1,140
Unnamed–30Tropical depression—2,600
Unnamed–30Tropical depression—290
Helga–40Tropical storm—870
Ione–100Cat 3—2,140
Olive–40Tropical storm—1,240
Joyce–75Cat 1—1,180
Kirsten–75Cat 1—1,010
Lorraine–45Tropical storm—900
Maggie–120Cat 49341,070
Unnamed–30Tropical depression—470
Norma–65Cat 1—240
Patricia–80Cat 19642,610
Unnamed–30Tropical depression—460
Rosalie–55Tropical storm—450

24 storms with an IBTrACS 1974 hurricane season record. Tracks are the archived center positions, first observation 28 May 1974, last 24 Oct 1974.

Tropical storms17

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

Hurricanes10

64 kt or more, one-minute sustained

Major (Category 3+)3

96 kt or more, Saffir–Simpson scale

Category 50

137 kt or more at any tropical-stage observation

Strongest stormMaggie

120 kt · 138 mph / 222 km/h

Lowest pressure934 hPa

Maggie, 27 Aug 1974

Longest track record15 days

Connie, full archive record

Storms without US-agency wind0

Mapped, but outside the counts above

QUICK ANSWERS

The 1974 season in brief

How many hurricanes were there in the 1974 Pacific hurricane season?

The archive records 10 hurricanes (one-minute winds of 64 kt or more) among 17 tropical storms, with 3 major hurricanes reaching 96 kt. Counts use US-agency winds during the tropical stage.

What was the strongest storm of the 1974 Pacific hurricane season?

Maggie, with a peak one-minute sustained wind of 120 kt (Category 4) on 28 Aug 1974, 06:00 UTC and a minimum central pressure of 934 hPa.

How many Category 5 storms were there in 1974?

None. No storm in the 1974 Pacific hurricane season reached Category 5 on the Saffir–Simpson one-minute wind scale in the archive.

When did the 1974 Pacific hurricane season start and end?

The first tropical-stage observation is on 28 May 1974 and the last on 24 Oct 1974, from 24 tracked storms in the archive.

What was the first hurricane of the 1974 Pacific hurricane season?

Connie, which reached hurricane strength (64 kt) on 12 Jun 1974, 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 Eastern Pacific basin for the 1974 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 Eastern 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