Timeline of the 2011 Pacific hurricane season

Timeline of the
2011 Pacific hurricane season
Season summary map
Season boundaries
First system formedJune 7, 2011
Last system dissipatedNovember 25, 2011
Strongest system
NameDora
Maximum winds155 mph (250 km/h)
(1-minute sustained)
Lowest pressure929 mbar (hPa; 27.43 inHg)
Longest lasting system
NameIrwin
Duration10.75 days
Storm articles

The 2011 Pacific hurricane season consisted of the events that occurred in the annual cycle of tropical cyclone formation over the Pacific Ocean north of the equator and east of the International Date Line. The official bounds of each Pacific hurricane season are dates that conventionally delineate the period each year during which tropical cyclones tend to form in the basin according to the National Hurricane Center (NHC), beginning on May 15 in the Eastern Pacific proper (east of 140°W) and June 1 in the Central Pacific (140°W to the International Date Line), and ending on November 30 in both areas. However, tropical cyclogenesis is possible at any time of year.[1] The season generated eleven tropical storms, which is below the 1991–2020 average of fifteen.[1] However, all but one became hurricanes and six further strengthened into major hurricanes,[nb 1] eclipsing the 1991–2020 averages of eight hurricanes and four major hurricanes.[1] There were also two tropical depressions that remained below tropical storm status. The first system, Hurricane Adrian, formed on June 7; the final, Hurricane Kenneth, was the latest in a calendar year to exist east of 140°W since 1983, dissipating on November 25.[2]

Several tropical cyclones impacted land during the 2011 season. The deadliest was Tropical Depression Twelve-E, which was part of a large area of torrential rains over Central America in mid-October. Widespread and destructive flooding and mudslides occurred in southeastern Mexico and Guatemala; at least thirty-six fatalities were directly attributed to the tropical depression itself, with many more in Central America being blamed on the overall weather system.[nb 2] On the same day that Twelve-E made landfall, Hurricane Jova came ashore further to the west, in the Mexican state of Jalisco, at Category 2 strength; high winds and heavy rains killed nine people[7] and caused at least MX$3.164 billion (US$254.3 million) in losses.[nb 3] Hurricane Beatriz in June claimed four lives when it passed a short distance off the Mexican state of Colima, producing strong winds and locally significant flooding on land.[10] Hurricanes Adrian in early June, Dora in July, and Hilary in late September all threatened or brushed the Pacific coast of Mexico but only caused minor peripheral effects.[11][12][13]

Prior to 2015, two time zones were utilized in the Eastern Pacific basin: Pacific east of 140°W, and Hawaii−Aleutian from 140°W to the International Date Line.[14][15] For convenience, each event is listed in Coordinated Universal Time (UTC) first, using the 24-hour clock (where 00:00 = midnight UTC),[16] with the respective local time included in parentheses. Figures for maximum sustained winds and position estimates are rounded to the nearest five units (knots, miles, or kilometers) and averaged over one minute, following National Hurricane Center practice. Direct wind observations are rounded to the nearest whole number. Atmospheric pressures are listed to the nearest millibar and nearest hundredth of an inch of mercury. This timeline documents the formation of tropical cyclones as well as the strengthening, weakening, landfalls, extratropical transitions, and dissipations during the season. It also includes information that was not released while the storm was active, meaning that data from post-storm reviews by the National Hurricane Center and the Central Pacific Hurricane Center is included.

Timeline of events

May

May 15

  • The 2011 East Pacific hurricane season officially begins.[1]

June

June 1

  • The 2011 Central Pacific hurricane season officially begins.[1]

June 7

June 8

June 9

June 10

June 11

June 12

June 19

June 20

June 21

June 22

July

July 7

July 8

July 9

July 10

July 18

July 19

July 20

July 21

July 22

July 24

July 25

July 31

August

August 1

August 2

August 3

August 4

August 5

August 6

August 15

August 16

August 17

August 18

August 19

August 20

August 21

August 31

September

September 1

September 21

September 22

September 23

September 25

September 26

September 27

September 28

September 29

September 30

October

October 6

Track maps of hurricanes Irwin (top) and Jova (bottom), which developed within six hours of each other

October 7

October 8

October 10

October 11

October 12

October 13

October 15

October 16

November

November 19

November 20

November 21

November 22

November 23

November 25

November 30

  • The 2011 Pacific hurricane season officially ends.[1]

Notes

  1. ^ A major hurricane is a Pacific or Atlantic hurricane that reaches Category 3 or higher on the five-level Saffir–Simpson scale, with maximum sustained winds of at least 111 mph (179 km/h).[1]
  2. ^ Cited to multiple sources:[3][4][5][6]
  3. ^ The estimate of monetary losses due to Hurricane Jova was ascertained by combining figures provided by La Jornada – MX$885 million (US$71.1 million) in Jalisco;[8] and CENAPRED – MX$2.279 billion (US$183.2 million) in Colima.[9]
  4. ^ On November 6, daylight saving time ended in most areas of the basin, which resulted in the gap between UTC and local time widening by one hour. Hawaii was not affected; the state has not observed daylight saving time since 1945.[23][24]

See also

References

  1. ^ a b c d e f g "Tropical Cyclone Climatology". Miami, Florida: National Hurricane Center. Archived from the original on April 1, 2024. Retrieved July 16, 2024.
  2. ^ Blake, Eric S.; Kimberlain, Todd B. (May 1, 2013). "Eastern North Pacific Hurricane Season of 2011". Monthly Weather Review. 141 (5). American Meteorological Society: 1397–1412. Bibcode:2013MWRv..141.1397B. doi:10.1175/MWR-D-12-00192.1.
  3. ^ a b c d Kimberlain, Todd B. (January 12, 2012). Tropical Cyclone Report: Tropical Depression Twelve-E (PDF) (Report). Miami, Florida: National Hurricane Center. Archived (PDF) from the original on December 5, 2023. Retrieved July 19, 2024.
  4. ^ "Central America Death Toll at 45 from Heavy Rains". Reuters. Tegucigalpa, Honduras. October 15, 2011. Archived from the original on October 19, 2011. Retrieved July 21, 2024.
  5. ^ "Suben a 34 los Fallecidos por Lluvias en Centroamérica". El Nacional (in Spanish). Reuters. October 14, 2011. Archived from the original on 2011-10-15. Retrieved July 21, 2024.
  6. ^ "Cerca de 30 Muertos por Lluvias Que Comienzan a Amainar en Centroamérica". Univision (in Spanish). EFE. October 13, 2011. Archived from the original on October 26, 2014. Retrieved July 21, 2024.
  7. ^ a b c d e f g h i j k Brennan, Michael J. (May 18, 2012). Tropical Cyclone Report: Hurricane Jova (PDF) (Report). Miami, Florida: National Hurricane Center. Archived (PDF) from the original on September 30, 2023. Retrieved July 19, 2024.
  8. ^ García, Juan Carlos (October 18, 2011). "Solicitará Emilio González $885 millones por Jova". La Jornada (in Mexican Spanish). Archived from the original on October 8, 2023. Retrieved July 23, 2024.
  9. ^ Méndez Estrada, Karla Margarita; Franco Vargas, Ernesto; Nolasco Mata, Jessica (February 2024). Impacto Socioeconómico de los Prinicipales Desastres Ocurridos en la República Mexicana en 2022 (PDF) (Report) (in Mexican Spanish). CENAPRED. p. 100. Archived (PDF) from the original on July 18, 2024. Retrieved September 14, 2024.
  10. ^ a b c d e f g Kimberlain, Todd B. (October 27, 2011). Tropical Cyclone Report: Hurricane Beatriz (PDF) (Report). Miami, Florida: National Hurricane Center. Archived (PDF) from the original on March 2, 2024. Retrieved October 27, 2011.
  11. ^ a b c d e f g h i j k l Berg, Robbie (September 7, 2011). Tropical Cyclone Report: Hurricane Adrian (PDF) (Report). Miami, Florida: National Hurricane Center. Archived (PDF) from the original on December 5, 2023. Retrieved September 10, 2011.
  12. ^ a b c d e f g h i j k l m Brown, Daniel P. (November 3, 2011). Tropical Cyclone Report: Hurricane Dora (PDF) (Report). Miami, Florida: National Hurricane Center. Archived (PDF) from the original on September 7, 2023. Retrieved July 18, 2024.
  13. ^ a b c d e f g h i j k l m n o p Beven II, John L.; Landsea, Christopher W. (January 20, 2012). Tropical Cyclone Report: Hurricane Hilary (PDF) (Report). Miami, Florida: National Hurricane Center. Archived (PDF) from the original on October 17, 2022. Retrieved January 20, 2012.
  14. ^ "NHC Tropical Cyclone Text Product Descriptions". Miami, Florida: National Hurricane Center. Archived from the original on July 10, 2024. Retrieved July 13, 2024.
  15. ^ "Update on NHC Products and Services for 2015" (PDF). Miami, Florida: National Hurricane Center. March 26, 2015. Archived (PDF) from the original on November 28, 2023. Retrieved July 13, 2024.
  16. ^ "Understanding the Date/Time Stamps". Silver Spring, Maryland: National Weather Service. Archived from the original on February 26, 2023. Retrieved March 21, 2024.
  17. ^ a b c d e f Stewart, Stacy R. (November 8, 2011). Tropical Cyclone Report: Hurricane Calvin (PDF) (Report). Miami, Florida: National Hurricane Center. Archived (PDF) from the original on July 15, 2023. Retrieved July 18, 2024.
  18. ^ a b c d e f g h i j k l Blake, Eric (September 6, 2011). Tropical Cyclone Report: Hurricane Eugene (PDF) (Report). Miami, Florida: National Hurricane Center. Archived (PDF) from the original on August 18, 2023. Retrieved September 20, 2011.
  19. ^ a b c d e f Pasch, Richard J. (February 3, 2012). Tropical Cyclone Report: Tropical Storm Fernanda (PDF) (Report). Miami, Florida: National Hurricane Center. Archived (PDF) from the original on December 15, 2023. Retrieved July 18, 2024.
  20. ^ a b c d e f g Avila, Lixion A. (December 22, 2011). Tropical Cyclone Report: Hurricane Greg (PDF) (Report). Miami, Florida: National Hurricane Center. Archived (PDF) from the original on July 15, 2023. Retrieved July 18, 2024.
  21. ^ a b c d Cangialosi, John P. (October 27, 2011). Tropical Cyclone Report: Tropical Depression Eight-E (PDF) (Report). Miami, Florida: National Hurricane Center. Archived (PDF) from the original on July 7, 2022. Retrieved July 19, 2024.
  22. ^ a b c d e f g h i j k Berg, Robbie (January 10, 2012). Tropical Cyclone Report: Hurricane Irwin (PDF) (Report). Miami, Florida: National Hurricane Center. Archived (PDF) from the original on January 21, 2022. Retrieved January 13, 2012.
  23. ^ Handwerk, Brian (March 11, 2011). "Daylight Saving Time 2011: Why and When Does It Begin?". National Geographic. Washington, D.C. Archived from the original on June 28, 2023. Retrieved July 19, 2024.
  24. ^ Enten, Harry (March 12, 2022). "The Daylight Saving Time debate is nothing to lose sleep over". CNN. Atlanta, Georgia. Archived from the original on March 31, 2024. Retrieved May 13, 2024.
  25. ^ a b c d e f g h i j k Stewart, Stacy R. (January 14, 2012). Tropical Cyclone Report: Hurricane Kenneth (PDF) (Report). Miami, Florida: National Hurricane Center. Archived (PDF) from the original on September 7, 2023. Retrieved July 19, 2024.
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