hurricanesmapped

EASTERN PACIFIC · SEASON MAP

2011 Pacific hurricane season

Every recorded track, mapped · 13 storms · 7 Jun 2011–25 Nov 2011

ACCUMULATED CYCLONE ENERGY120.9
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2011 Pacific hurricane season: every recorded storm trackRecorded tracks of all 13 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 BengalAdrian: 7 Jun–12 Jun, peak 120 kt, Category 4Beatriz: 19 Jun–22 Jun, peak 80 kt, Category 1Calvin: 7 Jul–10 Jul, peak 70 kt, Category 1Dora: 18 Jul–24 Jul, peak 135 kt, Category 4Eugene: 31 Jul–6 Aug, peak 120 kt, Category 4Fernanda: 15 Aug–19 Aug, peak 60 kt, Tropical stormGreg: 16 Aug–21 Aug, peak 75 kt, Category 1Unnamed: 31 Aug–31 Aug, peak 30 kt, Tropical depressionHilary: 21 Sep–30 Sep, peak 125 kt, Category 4Irwin: 6 Oct–16 Oct, peak 85 kt, Category 2Jova: 6 Oct–12 Oct, peak 110 kt, Category 3Unnamed: 12 Oct–12 Oct, peak 30 kt, Tropical depressionKenneth: 19 Nov–25 Nov, peak 125 kt, Category 4

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Whole season

DepressionTropical stormCat 1Cat 2Cat 3Cat 4Cat 5Post-tropical
Every storm of the 2011 Pacific hurricane season. Column headers sort the list.
Adrian–120Cat 49441,230
Beatriz–80Cat 1977680
Calvin–70Cat 19841,340
Dora–135Cat 49291,890
Eugene–120Cat 49422,690
Fernanda–60Tropical storm9921,650
Greg–75Cat 19791,660
Unnamed–30Tropical depression1002360
Hilary–125Cat 49422,070
Jova–110Cat 39551,180
Irwin–85Cat 29762,100
Unnamed–30Tropical depression1004780
Kenneth–125Cat 49401,970

13 storms with an IBTrACS 2011 hurricane season record. Tracks are the archived center positions, first observation 7 Jun 2011, last 25 Nov 2011.

Tropical storms11

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

Hurricanes10

64 kt or more, one-minute sustained

Major (Category 3+)6

96 kt or more, Saffir–Simpson scale

Category 50

137 kt or more at any tropical-stage observation

Strongest stormDora

135 kt · 155 mph / 250 km/h

Lowest pressure929 hPa

Dora, 21 Jul 2011

Longest track record13.8 days

Irwin, full archive record

Storms without US-agency wind0

Mapped, but outside the counts above

QUICK ANSWERS

The 2011 season in brief

How many hurricanes were there in the 2011 Pacific hurricane season?

The archive records 10 hurricanes (one-minute winds of 64 kt or more) among 11 tropical storms, with 6 major hurricanes reaching 96 kt. Counts use US-agency winds during the tropical stage.

What was the strongest storm of the 2011 Pacific hurricane season?

Dora, with a peak one-minute sustained wind of 135 kt (Category 4) on 21 Jul 2011, 12:00 UTC and a minimum central pressure of 929 hPa.

How many Category 5 storms were there in 2011?

None. No storm in the 2011 Pacific hurricane season reached Category 5 on the Saffir–Simpson one-minute wind scale in the archive.

When did the 2011 Pacific hurricane season start and end?

The first tropical-stage observation is on 7 Jun 2011 and the last on 25 Nov 2011, from 13 tracked storms in the archive.

What was the first hurricane of the 2011 Pacific hurricane season?

Adrian, which reached hurricane strength (64 kt) on 8 Jun 2011, 21:00 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 2011 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