2011 East Pacific hurricane season
May 15, 2011 – Nov 30, 2011 · Season ended
The 2011 East Pacific hurricane season produced 11 named storms, 10 hurricanes and 6 major hurricanes, against a 1991–2020 average of 15.6, 8.4 and 4.4. Its accumulated cyclone energy was 121, 95% of the average.
2011 season at a glance
- Named storms: 11 (1991–2020 average 15.6).
- Hurricanes (64 kt+): 10 (average 8.4).
- Major, 96 kt+: 6 (average 4.4).
- Accumulated cyclone energy: 120.9, 95% of the 127 average.
- Named-storm days: 55.8, counting each six-hourly fix at 34 kt or more as a quarter day.
- First named storm: Adrian, June 8.
- First hurricane: Adrian, June 9.
- First major storm: Adrian, June 9.
- Last storm to dissipate: Kenneth, November 26.
- All systems tracked: 13, including 2 that stayed below tropical-storm strength.
Counts use 1-minute best-track winds: named storms reached 34 kt (39 mph), the next column 64 kt (74 mph) and major storms 96 kt (111 mph).
Every storm of the 2011 season
| Storm | Dates | Peak | Min pressure | Landfall |
|---|---|---|---|---|
| Adrian | – | C4 | 944 mb | — |
| Beatriz | – | C1 | 977 mb | — |
| Calvin | – | C1 | 984 mb | — |
| Dora | – | C4 | 929 mb | — |
| Eugene | – | C4 | 942 mb | — |
| Fernanda | – | TS | 992 mb | — |
| Greg | – | C1 | 979 mb | — |
| TD 8E | – | TD | 1002 mb | La Mira, Mexico |
| Hilary | – | C4 | 942 mb | — |
| Irwin | – | C2 | 976 mb | — |
| Jova | – | C3 | 955 mb | Tomatlán, Mexico |
| TD 12E | – | TD | 1004 mb | Chahuites, Mexico |
| Kenneth | – | C4 | 940 mb | — |
- Adrian: Adrian formed in the East Pacific in June 2011 and peaked as a Category 4 hurricane with maximum sustained winds of 140 mph (220 km/h) and a minimum pressure of 944 mb. It did not make landfall. The system was tracked for 7 days.
- Beatriz: Beatriz formed in the East Pacific in June 2011 and peaked as a Category 1 hurricane with maximum sustained winds of 90 mph (150 km/h) and a minimum pressure of 977 mb. It did not make landfall. The system was tracked for 3 days.
- Calvin: Calvin formed in the East Pacific in July 2011 and peaked as a Category 1 hurricane with maximum sustained winds of 80 mph (130 km/h) and a minimum pressure of 984 mb. It did not make landfall. The system was tracked for 7 days.
- Dora: Dora formed in the East Pacific in July 2011 and peaked as a Category 4 hurricane with maximum sustained winds of 155 mph (250 km/h) and a minimum pressure of 929 mb. It did not make landfall. The system was tracked for 8 days.
- Eugene: Eugene formed in the East Pacific in July 2011 and peaked as a Category 4 hurricane with maximum sustained winds of 140 mph (220 km/h) and a minimum pressure of 942 mb. It did not make landfall. The system was tracked for 11 days.
- Fernanda: Fernanda formed in the East Pacific in August 2011 and peaked as a tropical storm with maximum sustained winds of 70 mph (110 km/h) and a minimum pressure of 992 mb. It did not make landfall. The system was tracked for 7 days.
- Greg: Greg formed in the East Pacific in August 2011 and peaked as a Category 1 hurricane with maximum sustained winds of 85 mph (140 km/h) and a minimum pressure of 979 mb. It did not make landfall. The system was tracked for 6 days.
- TD 8E: This system formed in the East Pacific in August 2011 and peaked as a tropical depression with maximum sustained winds of 35 mph (55 km/h) and a minimum pressure of 1002 mb. It made landfall near La Mira, Mexico. The system was tracked for 2 days.
- Hilary: Hilary formed in the East Pacific in September 2011 and peaked as a Category 4 hurricane with maximum sustained winds of 145 mph (230 km/h) and a minimum pressure of 942 mb. It did not make landfall. The system was tracked for 12 days.
- Irwin: Irwin formed in the East Pacific in October 2011 and peaked as a Category 2 hurricane with maximum sustained winds of 100 mph (155 km/h) and a minimum pressure of 976 mb. It did not make landfall. The system was tracked for 14 days.
- Jova: Jova formed in the East Pacific in October 2011 and peaked as a Category 3 hurricane with maximum sustained winds of 125 mph (205 km/h) and a minimum pressure of 955 mb. It made landfall near Tomatlán, Mexico. The system was tracked for 7 days.
- TD 12E: This system formed in the East Pacific in October 2011 and peaked as a tropical depression with maximum sustained winds of 35 mph (55 km/h) and a minimum pressure of 1004 mb. It made landfall near Chahuites, Mexico. The system was tracked for 6 days.
- Kenneth: Kenneth formed in the East Pacific in November 2011 and peaked as a Category 4 hurricane with maximum sustained winds of 145 mph (230 km/h) and a minimum pressure of 940 mb. It did not make landfall. The system was tracked for 8 days.
Each summary is built from the storm’s best track.
Strongest storm of 2011
Hurricane Dora was the strongest storm of the season, peaking at 155 mph (250 km/h), with a lowest pressure of 929 mb, on July 21. That is Category 4 strength on the Saffir-Simpson scale.
21 East Pacific storms since 1980 peaked higher, and 10 matched it. It produced 13% of the season’s accumulated cyclone energy.
Landfalls in 2011
3 of the season’s 13 systems made landfall, 1 of them at hurricane strength. Each landfall point is listed with the nearest town and the wind at that moment.
How 2011 ranks since 1980
The season ranks 42nd of 47 East Pacific seasons since 1980 for named storms (tied with 1 other season), 11th for hurricanes (tied with 8 other seasons) and 19th for accumulated cyclone energy.
The record since 1980 is 25 named storms, in 1992, and the highest ACE is 294, in 2018.
2011 storm names
The 2011 season used 11 names: Adrian, Beatriz, Calvin, Dora, Eugene, Fernanda, Greg, Hilary, Irwin, Jova, Kenneth.
2 systems were tracked without a name and are listed by number.
Atlantic and East Pacific lists repeat every six years. See how storms are named.
2011 season FAQ
How many named storms were there in 2011?
The 2011 East Pacific hurricane season had 11 named storms, 10 hurricanes and 6 major hurricanes, from 13 systems tracked in all. The 1991–2020 average is 15.6 named storms, 8.4 at 64 kt or more and 4.4 major per season. The first to form was Adrian and the last was Kenneth.
What was the strongest storm of 2011?
Hurricane Dora. It peaked at 155 mph (250 km/h, 135 kt) with a lowest pressure of 929 mb on July 21. That is Category 4 strength on the Saffir-Simpson scale. 21 East Pacific storms since 1980 peaked higher. It produced 13% of the season’s accumulated cyclone energy.
When did the 2011 season end?
The official season ended on November 30, 2011, as it does every year in the Atlantic, eastern Pacific and Central Pacific. The last system, Kenneth, dissipated on November 26. Storms that form in December still count toward that year: 1 East Pacific storm since 1980 reached tropical-storm strength in December.