my-server
← Wiki

Timeline of the 2010 Pacific hurricane season

The 2010 Pacific hurricane season was one of the least active seasons on record, featuring the fewest named storms since 1977. The season officially started on May 15 in the eastern Pacific—east of 140°W—and on June 1 in the central Pacific—between the International Date Line and 140°W—and lasted until November 30. These dates typically cover the period of each year when most tropical cyclones form in the eastern Pacific basin. The season's first storm, Tropical Storm Agatha, developed on May 29; the season's final storm, Tropical Storm Omeka, degenerated on December 21.

The season began with record-breaking activity with four named storms, including two major hurricanes, developing by the end of June. Accumulated cyclone energy (ACE) values exceeded 300 percent of the average for the month of June. Activity abruptly diminished thereafter, with July, August, and September seeing record low storm development. The Eastern Pacific season proper ended with Tropical Storm Georgette's dissipation on September 23, a month before the climatological mean. The year's final cyclone, Omeka, developed in the off-season on December 18, marking a record-late formation date in the satellite-era.

This timeline documents tropical cyclone formations, strengthening, weakening, landfalls, extratropical transitions, and dissipations during the season. It includes information that was not released throughout the season, meaning that data from post-storm reviews by the National Hurricane Center and the Central Pacific Hurricane Center, such as a storm that was not initially warned upon, has been included.

The time stamp for each event is first stated using Coordinated Universal Time (UTC), the 24-hour clock where 00:00 = midnight UTC. The NHC uses both UTC and the time zone where the center of the tropical cyclone is currently located. Four time zones are utilized in the basin: Central for storms east of 106°W, Mountain between 114.9°W and 106°W, Pacific between 140°W and 115°W, and Hawaii–Aleutian for storms between the International Date Line and 140°W. In this timeline, the respective area time is included in parentheses. Additionally, figures for maximum sustained winds and position estimates are rounded to the nearest 5 units (miles, or kilometers), 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.

Timeline of events

May

May 15

  • The 2010 Pacific hurricane season officially begins.

May 29

  • 00:00 UTC (7:00 p.m. CDT, May 28) – Tropical Depression One-E develops out of a broad area of low pressure roughly southwest of Tapachula, Mexico.
  • 06:00 UTC (1:00 a.m. CDT) – Tropical Depression One-E intensifies into a tropical storm and is named Agatha while located about southwest of Guatemala City, Guatemala.
  • 18:00 UTC (1:00 p.m. CDT) – Tropical Storm Agatha reaches its peak intensity with winds of and a barometric pressure of 1001 mbar (hPa; ).
  • 22:30 UTC (5:30 p.m. CDT) – Tropical Storm Agatha makes landfall near Champerico, Guatemala, just south of the Mexico–Guatemala border, while at peak strength.

May 30

  • 06:00 UTC (1:00 a.m. CDT) – Agatha weakens to a tropical depression.
  • 12:00 UTC (7:00 a.m. CDT) – Tropical Depression Agatha degenerates into a remnant low before subsequently dissipating six hours later over the high terrain of Guatemala.

June

June 1

  • The 2010 Central Pacific hurricane season officially begins.

June 16

  • 06:00 UTC (1:00 a.m. CDT) – Tropical Depression Two-E develops out of a tropical wave roughly south of Salina Cruz, Mexico.
  • 18:00 UTC (1:00 p.m. CDT) – Tropical Depression Two-E attains its peak intensity with winds of and a pressure of 1007 mbar (hPa; ).

June 17

  • 06:00 UTC (1:00 a.m. CDT) – Tropical Depression Two-E rapidly dissipates off the coast of Mexico.
  • 06:00 UTC (1:00 a.m. CDT) – Tropical Depression Three-E develops out of an area of low pressure roughly south-southwest of Manzanillo, Mexico.
  • 12:00 UTC (7:00 a.m. CDT) – Observations from the ship Maersk Dhahran indicate that Three-E intensified into a tropical storm; the system was accordingly assigned the name Blas.

June 18

  • 18:00 UTC (1:00 p.m. CDT) – Tropical Depression Four-E develops out of large, well-defined low-pressure area located about southeast of Acapulco, Mexico.

June 19

  • 12:00 UTC (6:00 a.m. MDT) – Tropical Storm Blas reaches its peak intensity with winds of and a pressure of 994 mbar (hPa; ) while located about south of the southern tip of Baja California Sur.
  • 12:00 UTC (7:00 a.m. CDT) – Tropical Depression Four-E intensifies into Tropical Storm Celia while situated roughly south-southeast of Acapulco, Mexico.

June 20

June 21

  • 00:00 UTC (5:00 p.m. PDT, June 20) – Tropical Storm Blas weakens to a tropical depression about southwest of the southern tip of Baja California Sur.
  • 18:00 UTC (11:00 a.m. PDT) – Tropical Depression Blas degenerates into a non-convective remnant low roughly 710 mi (1,145 km) southwest of the southern tip of Baja California Sur.

June 22

  • 06:00 UTC (1:00 a.m. CDT) – Hurricane Celia reaches Category 2 status and its initial peak intensity with winds of and a pressure of 973 mbar (hPa; ).

June 23

  • 00:00 UTC (6:00 p.m. MDT, June 22) – Hurricane Celia weakens to Category 1 strength approximately south-southwest of Manzanillo, Mexico.
  • 00:00 UTC (7:00 p.m. CDT, June 22) – Tropical Depression Five-E develops from an area of showers and thunderstorms about south-southeast of Salina Cruz, Mexico.
  • 06:00 UTC (1:00 a.m. CDT) – Tropical Depression Five-E strengthens into Tropical Storm Darby about south-southeast of Salina Cruz, Mexico.
  • 12:00 UTC (6:00 a.m. MDT) – Hurricane Celia regains Category 2 intensity while located southwest of Manzanillo, Mexico.

June 24

  • 06:00 UTC (1:00 a.m. CDT) – Tropical Storm Darby rapidly strengthens into a Category 1 hurricane approximately south-southwest of Salina Cruz, Mexico.
  • 12:00 UTC (6:00 a.m. MDT) – Hurricane Celia intensifies into Category 3 hurricane about south-southwest of Socorro Island.
  • 18:00 UTC (12:00 p.m. MDT) – Hurricane Celia rapid intensifies into a Category 4 hurricane about south-southwest of Socorro Island.

June 25

  • 00:00 UTC (5:00 p.m. PDT, June 24) – Hurricane Celia reaches its peak intensity as a Category 5 hurricane with winds of and a pressure of 921 mbar (hPa; ), about southwest of Socorro Island.
  • 06:00 UTC (1:00 a.m. CDT) – Hurricane Darby intensifies into a Category 2 hurricane about south of Acapulco, Mexico.
  • 12:00 UTC (5:00 a.m. PDT) – Stable environmental conditions and cooler waters result in Hurricane Celia weakening to a Category 4 system approximately southwest of Socorro Island.
  • 12:00 UTC (7:00 a.m. CDT) – Hurricane Darby undergoes a second phase of rapid deepening and reaches Category 3 intensity about south-southwest of Acapulco, Mexico.
  • 18:00 UTC (11:00 a.m. PDT) – Hurricane Celia weakens to Category 3 strength about southwest of Socorro Island.
  • 21:00 UTC (4:00 p.m. CDT) – Hurricane Darby attains its peak intensity with winds of and a pressure of 959 mbar (hPa; ) approximately southwest of Acapulco, Mexico.

June 26

  • 06:00 UTC (11:00 p.m. PDT, June 25) – Hurricane Celia weakens to Category 2 strength about 665 mi (1,070 km) west-southwest of Socorro Island.
  • 12:00 UTC (7:00 a.m. CDT) – Increasing wind shear stemming from the large circulation of Hurricane Alex over the Gulf of Mexico causes Darby to weaken to a Category 2 hurricane about southwest of Acapulco, Mexico.
  • 18:00 UTC (11:00 a.m. PDT) – Hurricane Celia weakens to Category 1 strength about 745 mi (1,200 km) west-southwest of Socorro Island.

June 27

  • 00:00 UTC (5:00 p.m. PDT, June 26) – Hurricane Celia weakens to a tropical storm roughly 790 mi (1,270 km) west-southwest of Socorro Island.
  • 00:00 UTC (7:00 p.m. CDT, June 26) – Hurricane Darby weakens to a Category 1 hurricane approximately southwest of Acapulco, Mexico.
  • 06:00 UTC (1:00 a.m. CDT) – Hurricane Darby weakens to a tropical storm roughly southwest of Acapulco, Mexico.

June 28

  • 12:00 UTC (7:00 a.m. CDT) – After doubling back to the east, Tropical Storm Darby weakens to a tropical depression about south of Acapulco, Mexico.
  • 18:00 UTC (11:00 a.m. PDT) – Tropical Storm Celia degenerates into a non-convective remnant low approximately 1,035 mi (1,665 km) west-southwest of the southern tip of Baja California Sur.
  • 18:00 UTC (1:00 p.m. CDT) – Tropical Depression Darby degrades into a remnant low about south-southeast of Acapulco, Mexico.

July

July 14

  • 12:00 UTC (7:00 a.m. CDT) – Tropical Depression Six-E develops from a well-defined low about south-southwest of Manzanillo, Mexico. It simultaneously reaches its peak intensity with winds of and a pressure of 1006 mbar (hPa; ).

July 16

  • 18:00 UTC (12:00 a.m. MDT) – Tropical Depression Six-E degenerates into a remnant low about west-southwest of Socorro Island.

August

August 6

  • 00:00 UTC (7:00 p.m. PDT, August 5) – Tropical Depression Seven-E develops from a weak low roughly southwest of Acapulco, Mexico.
  • 12:00 UTC (7:00 a.m. PDT) – Tropical Depression Seven-E intensifies into Tropical Storm Estelle approximately west of Acapulco, Mexico.

August 8

  • 00:00 UTC (6:00 p.m. MDT, August 7) – Tropical Storm Estelle reaches its peak intensity with winds of and a pressure of 994 mbar (hPa; ) while situated southeast of Socorro Island.

August 9

  • 18:00 UTC (12:00 p.m. MDT) – Tropical Storm Estelle weakens to a tropical depression roughly southwest of Socorro Island.

August 10

  • 06:00 UTC (12:00 a.m. MDT) – Tropical Depression Estelle degenerates into a remnant low about southwest of Socorro Island.

August 20

  • 06:00 UTC (12:00 a.m. MDT) – Tropical Depression Eight-E develops west-southwest of Manzanillo, Mexico.
  • 18:00 UTC (12:00 p.m. MDT) – Tropical Depression Eight-E reaches its peak intensity with winds of and a pressure of 1003 mbar (hPa; ) while located about west of Manzanillo, Mexico.

August 21

  • 18:00 UTC (12:00 p.m. MDT) – Tropical Depression Eight-E degenerates into a non-convective remnant low approximately southwest of the southern tip of Baja California Sur.
  • 1800 UTC (1:00 p.m. CDT) – Tropical Depression Nine-E forms from an area of disturbed weather roughly southeast of Salina Cruz, Mexico.

August 22

  • 12:00 UTC (7:00 a.m. CDT) – Tropical Depression Nine-E strengthens into a tropical storm and receives the name Frank while situated about south of Salina Cruz, Mexico.

August 25

  • 12:00 UTC (7:00 a.m. CDT) – Tropical Storm Frank intensifies into a Category 1 hurricane about south of Manzanillo, Mexico.

August 26

  • 18:00 UTC (12:00 p.m. MDT) – Hurricane Frank reaches its peak intensity with winds of and a pressure of 978 mbar (hPa; ) approximately southeast of Socorro Island.

August 27

  • 06:00 UTC (12:00 a.m. MDT) – Hurricane Frank makes its closest approach to Socorro Island, passing within to the southwest.
  • 18:00 UTC (12:00 p.m. MDT) – Hurricane Frank weakens to a tropical storm roughly west-northwest of Socorro Island.

August 28

  • 12:00 UTC (6:00 a.m. MDT) – Tropical Storm Frank weakens to a tropical depression about north-northwest of Socorro Island.
  • 18:00 UTC (12:00 p.m. MDT) – Tropical Depression Frank degenerates into a remnant low approximately north-northwest of Socorro Island.

September

September 3

  • 00:00 UTC (6:00 p.m. MDT, September 2) – Tropical Depression Ten-E develops from a tropical wave about south-southeast of the southern tip of Baja California Sur. It simultaneously reaches its peak intensity with winds of and a pressure of 1003 mbar (hPa; ).
  • 18:00 UTC (1:00 p.m. CDT) – Tropical Depression Eleven-E forms roughly southeast of Salina Cruz, Mexico.

September 4

  • 07:00 UTC (8:00 p.m. CDT, September 3) – Tropical Depression Eleven-E makes landfall near Salina Cruz, Mexico, at its peak intensity with winds of .
  • 12:00 UTC (6:00 a.m. MDT) – Tropical Depression Ten-E degenerates into a remnant low roughly west-southwest of the southern tip of Baja California Sur.
  • 18:00 UTC (1:00 p.m. CDT) – Tropical Depression Eleven-E degenerates into a remnant low while crossing the Isthmus of Tehuantepec.

September 5

September 20

  • 12:00 UTC (6:00 a.m. MDT) – Tropical Depression Twelve-E develops from a tropical wave approximately south-southeast of Cabo San Lucas, Mexico.
  • 18:00 UTC (12:00 p.m. MDT) – Tropical Depression Twelve-E intensifies into Tropical Storm Georgette, the final named storm in the East Pacific proper, while located about west of Puerto Vallarta, Mexico.

September 21

  • 12:00 UTC (6:00 a.m. MDT) – Tropical Storm Georgette reaches its peak intensity with winds of and a minimum pressure of 999 mbar (hPa; ).
  • 18:00 UTC (12:00 p.m. MDT) – Tropical Storm Georgette makes landfall near San José del Cabo, Mexico, with winds of .

September 22

  • 00:00 UTC (6:00 p.m. MDT, September 21) – Tropical Storm Georgette weakens to a tropical depression shortly before emerging over the Gulf of California to the east of La Paz.
  • 22:00 UTC (4:00 p.m. MDT) – Tropical Depression Georgette makes landfall near San Carlos, Mexico, with winds of .

September 23

  • 06:00 UTC (12:00 a.m. MDT) – Tropical Depression Georgette dissipates over the mountainous terrain of northwestern Mexico.

October

(No tropical cyclones developed in October).

November

(No tropical cyclones developed in November).

November 30

  • The 2010 Central and Eastern Pacific hurricane seasons officially end.

December

December 18

  • 00:00 UTC (2:00 p.m. HST, December 17) – A subtropical depression develops from an extratropical cyclone approximately 1,330 mi (2,140 km) west-northwest of Honolulu, Hawaii.
  • 12:00 UTC (2:00 a.m. HST) – The subtropical depression strengthens into a subtropical storm.

December 19

December 20

  • 06:00 UTC (8:00 p.m. HST, December 19) – The subtropical storm again crosses the International Date Line, re-entering the basin with winds of and a pressure of 997 mbar (hPa; ); around this time, the storm transitions to a tropical storm and is later assigned the name Omeka.

December 21

  • 06:00 UTC (8:00 p.m. HST, December 20) – Tropical Storm Omeka makes its closest approach to land as a tropical cyclone, passing roughly south-southeast of Lisianski Island, Hawaii.
  • 12:00 UTC (2:00 a.m. HST) – Tropical Storm Omeka degenerates into a non-convective remnant low approximately northeast of Lisianski Island, Hawaii.

See also

Footnotes

References

External links