Timeline of the 2009 Pacific hurricane season

The 2009 Pacific hurricane season officially started on May 15 in the East Pacific Ocean, and on June 1 in the Central Pacific; they both ended on November 30. These dates conventionally delimit the period of each year when most tropical cyclones form in the Pacific basin. No tropical cyclones formed during the month of May, making 2009 the first time that no tropical cyclones formed during May since 1999. The first tropical cyclone of the year, Tropical Depression One-E, formed June 18, and dissipated the following day. The first named storm of the season, Hurricane Andres formed on June 21. The final storm of the season, Neki, dissipaed on October 27.

This timeline documents all the storm formations, strengthening, weakening, landfalls, extratropical transitions, as well as dissipation.For convenience and clarity, in the timeline below, all landfalls are bolded. The timeline will also include information, when it becomes available, which was not operationally released, meaning that information from post-storm reviews by the National Hurricane Center, such as information on a storm that was not operationally warned on, have been included.

The graphical bar below gives a brief overview of storm activity during the season, and for convenience, the storm's maximum intensity is included as a color bar.

May

 * May 15
 * The 2009 Eastern Pacific hurricane season officially begins.

June

 * June 1
 * The 2009 Central Pacific hurricane season officially begins.


 * June 18
 * 1200 UTC (5:00 pm PDT) – Tropical Depression One-E forms about 405 mi south-southwest of Mazatlán, Sinaloa.


 * June 19
 * 0000 UTC (5:00 pm PDT June 18) – Tropical Depression One-E attains its peak intensity of 35 mph and a barometric pressure of 1003 mbar (hPa; 1003 mbar).
 * 1800 UTC (11:00 pm PDT) – Tropical Depression One-E degenerates into a trough of low pressure near the Mexican coastline.


 * June 21
 * 1200 UTC (11:00 am PDT) – Tropical Depression Two-E forms about 165 mi southeast of Acapulco, Mexico.
 * 1800 UTC (5:00 pm PDT) – Tropical Depression Two-E strengthens into Tropical Storm Andres.


 * June 23
 * 0600 UTC (5:00 am PDT) – Tropical Storm Andres intensifies into a Category 1 hurricane, with winds peaking at 80 mph, the first of the season while located 80 mi southwest of Lázaro Cárdenas, Mexico.


 * June 24
 * 0000 UTC (5:00 am PDT) – Hurricane Andres weakens to a tropical storm.
 * 1200 UTC (5:00 pm PDT) – Tropical Storm Andres weakens to a tropical depression.
 * 1800 UTC (11:00 pm PDT) – Tropical Depression Andres is downgraded to a trough of low pressure shortly before dissipating.

July

 * July 6
 * 0600 UTC (11:00 pm PDT July 5) – A tropical depression forms about 440 mi south of Cabo San Lucas, Mexico.
 * 1200 UTC (5:00 am PDT) – The tropical Depression is upgraded to Tropical Storm Blanca.


 * July 8
 * 1200 UTC (5:00 am PDT) – Tropical Storm Blanca weakens back to a tropical depression.


 * July 9
 * 0600 UTC (11:00 pm PDT July 8) – Tropical Depression Blanca weakens into a remnant low about 795 mi west of Cabo San Lucas, Mexico.


 * July 10
 * 0600 UTC (11:00 pm PDT July 9) – Tropical Depression Four-E forms about 900 mi south of the southern tip of Baja California.
 * 1800 UTC (11:00 am PDT) – Tropical Depression Four-E strengthens into Tropical Storm Carlos.


 * July 11
 * 1800 UTC (11:00 am PDT) – Tropical Storm Carlos strengthens into Hurricane Carlos.


 * July 13
 * 0000 UTC (5:00 pm PDT July 12) – Hurricane Carlos weakens to a tropical storm.


 * July 14
 * 1200 UTC (5:00 am PDT) – Tropical Storm Carlos re-strengthens back into a Category 1 hurricane.


 * July 15
 * 0000 UTC (5:00 pm PDT July 14) – Hurricane Carlos reaches Category 2 intensity.
 * 0000 UTC (5:00 pm PDT July 14) – Tropical Depression Five-E forms 795 mi west-southwest of Manzanillo, Mexico.
 * 1200 UTC (5:00 am PDT) – Tropical Depression Five-E strengthens into Tropical Storm Dolores.
 * 1800 UTC (11:00 am PDT) – Hurricane Carlos is downgraded to a tropical storm.


 * July 16
 * 0600 UTC (11:00 pm PDT July 15) – Tropical Storm Carlos weakens to a tropical depression.
 * 1800 UTC (11:00 am PDT) – Tropical Storm Dolores degenerates into a remnant low.


 * July 17
 * 0000 UTC (5:00 pm PDT July 16) – Tropical Depression Carlos dissipates.


 * July 30
 * 1200 UTC (8:00 am PDT) – Tropical Depression Six-E forms 1185 mi east-southeast of Hilo, Hawaii.
 * 1800 UTC (8:00 am HST) – Tropical Depression Six-E enters the Central Pacific Hurricane Center's area of responsibility and is upgraded to Tropical Storm Lana 1075 mi east-southeast of Hilo, Hawaii.

August

 * August 2
 * 1800 UTC (8:00 am HST) – Tropical Storm Lana weakens to a tropical depression.


 * August 3
 * 0000 UTC (2:00 pm HST August 2) – Tropical Depression Lana degenerates into a remnant low.
 * 1800 UTC (11:00 am PDT) – Tropical Depression Seven-E forms 670 mi southwest of Manzanillo, Mexico.
 * 1800 UTC (11:00 am PDT) – Tropical Depression Eight-E forms.


 * August 4
 * 0000 UTC (5:00 pm August 3 PDT) – Tropical Depression Seven-E strengthens into Tropical Storm Enrique.
 * 0000 UTC (5:00 pm August 3 PDT) – Tropical Depression Eight-E is upgraded to Tropical Storm Felicia 1140 mi southwest of the southern tip of Baja California.
 * 1800 UTC (11:00 am PDT) – Tropical Storm Felicia is upgraded to Hurricane Felicia.


 * August 5
 * 0600 UTC (11:00 pm PDT August 4) – Hurricane Felicia reaches Category 2 intensity.
 * 1200 UTC (5:00 am PDT) – Hurricane Felicia strengthens to a Category 3 major hurricane and becomes the first major hurricane of the 2009 Pacific hurricane season.
 * 1800 UTC (11:00 am PDT) – Hurricane Felicia strengthens to a Category 4 hurricane.


 * August 7
 * 0000 UTC (5:00 pm PDT August 6) – Tropical Storm Enrique is downgraded to a tropical depression 910 mi west-southwest of Punta Eugenia, Mexico.
 * 0600 UTC (11:00 pm PDT August 6) – Hurricane Felicia weakens to a Category 3 hurricane.
 * 1800 UTC (11:00 am PDT) – Hurricane Felicia weakens to a Category 2 hurricane.


 * August 8
 * 0000 UTC (5:00 pm PDT August 7) – Tropical Depression Enrique degenerates into a remnant low.
 * 1200 UTC (2:00 am HST) – Hurricane Felicia weakens to a Category 1 hurricane and enters the Central Pacific Hurricane Center's area of responsibility.


 * August 9
 * 0900 UTC (11:00 pm HST August 8) – Hurricane Felicia is downgraded to a tropical storm 635 mi east of Hilo, Hawaii.
 * 1800 UTC (11:00 am PDT) – Tropical Depression Nine-E forms 885 mi southwest of the southern tip of Baja California.


 * August 11
 * 0300 UTC (5:00 pm August 10 HST) – Tropical Depression One-C forms south-southwest of Johnston Island.
 * 1200 UTC (2:00 am HST) – Tropical Storm Felicia weakens to a tropical depression 140 mi northeast of Hilo, Hawaii.
 * 1500 UTC (5:00 am HST) – Tropical Depression One-C strengthens into Tropical Storm Maka.
 * 2100 UTC (11:00 am HST) – Tropical Depression Felicia degenerates to a remnant low.


 * August 12
 * 0000 UTC (5:00 pm PDT August 11) – Tropical Depression Nine-E degenerates into a remnant low 1380 mi west-southwest of the southern tip of Baja California.
 * 1200 UTC (5:00 am PDT) – Tropical Depression Ten-E forms 655 mi south-southwest of the southern tip of Baja California.


 * August 13
 * 0000 UTC (5:00 pm PDT August 12) – Tropical Depression Ten-E strengthens into Tropical Storm Guillermo.


 * August 14
 * 0600 UTC (11:00 pm PDT August 13) – Tropical Storm Guillermo is upgraded to Hurricane Guillermo.
 * 1800 UTC (11:00 am PDT) – Hurricane Guillermo reaches Category 2 intensity.


 * August 15
 * 0600 UTC (11:00 pm PDT August 14) – Hurricane Guillermo reaches Category 3 intensity


 * August 16
 * 0000 UTC (5:00 pm PDT August 15) – Hurricane Guillermo weakens to a Category 2 hurricane.
 * 1800 UTC (11:00 am PDT) – Hurricane Guillermo weakens to a Category 1 hurricane.


 * August 17
 * 0000 UTC (2:00 pm HST August 16) – Hurricane Guillermo crosses the Central Pacific Hurricane Center's area of responsibility.
 * 0600 UTC (8:00 pm HST August 16) – Hurricane Guillermo is downgraded to a tropical storm 850 mi east of Hilo, Hawaii.


 * August 19
 * 1800 UTC (8:00 am HST) – Tropical Storm Guillermo degenerates to a remnant low 635 mi north of Hawaii.


 * August 22
 * 1200 UTC (5:00 am PDT) – Tropical Depression Eleven-E forms 1265 mi southeast of the Big Island of Hawaii.
 * 1800 UTC (11:00 am PDT) – Tropical Depression Eleven-E strengthens into Tropical Storm Hilda.


 * August 23
 * 1200 UTC (2:00 am HST) – Tropical Storm Hilda crosses into the Central Pacific Hurricane Center's area of responsibility.


 * August 24
 * 1800 UTC (11:00 am PDT) – Tropical Depression Twelve-E forms 690 mi from the southern tip of Baja California.


 * August 25
 * 0000 UTC (8:00 pm PDT August 24) – Tropical Depression Twelve-E is upgraded to Tropical Storm Ignacio.


 * August 27
 * 0000 UTC (2:00 pm HST August 26) – Tropical Storm Hilda weakens to a tropical depression 495 mi south-southeast of the Big Island of Hawaii.
 * 0600 UTC (11:00 pm PDT August 26) – Tropical Storm Ignacio weakens to a tropical depression.
 * 1200 UTC (5:00 am PDT) – Tropical Depression Ignacio degenerates into a remnant low.


 * August 28
 * 1800 UTC (8:00 am HST) – Tropical Depression Hilda degenerates into a remnant low.


 * August 29
 * 0300 UTC (8:00 pm PDT August 28) – The NHC upgrades a broad area of low pressure off the southwest coast of Mexico to Tropical Depression Thirteen-E.
 * 0300 UTC (5:00 pm HST August 28) – The CPHC initiates advisories on Tropical Depression Two-C, the second system to form in the Central Pacific in 2009, 1370 miles west-southwest of Kauai.
 * 0900 UTC (2:00 am PDT) – Tropical Depression Thirteen-E strengthens into Tropical Storm Jimena.
 * 1500 UTC (8:00 am PDT) – The NHC upgrades Tropical Storm Jimena to a Category 1 hurricane.
 * 1500 UTC (8:00 am PDT) – The NHC upgrades a broad area of low pressure out in the open Pacific to Tropical Depression Fourteen-E.
 * 2100 UTC (2:00 pm PDT) – The NHC upgrades Hurricane Jimena to a Category 2 hurricane.
 * 2100 UTC (2:00 pm PDT) – Tropical Depression Fourteen-E strengthens into Tropical Storm Kevin.


 * August 30
 * 0900 UTC (2:00 am PDT) – The NHC upgrades Hurricane Jimena to a Category 3 hurricane.
 * 1500 UTC (8:00 am PDT) – The NHC upgrades Hurricane Jimena to a Category 4 hurricane.


 * August 31
 * 1500 UTC (8:00 am PDT) – Tropical Storm Kevin weakens into a tropical depression.

September

 * September 1
 * 2100 UTC (2:00 pm PDT) – The NHC issues its last advisory on Tropical Depression Kevin.


 * September 2
 * ca.1900 UTC (12 p.m. PDT) – Hurricane Jimena makes landfall between Puerto San Andresito and San Juanico with 85 mph winds.


 * September 3
 * 0300 UTC (8 p.m. PDT September 2) – Hurricane Jimena weakens to a tropical storm.


 * September 4
 * 0900 UTC (2 a.m. PDT) – Tropical Storm Jimena weakens into a tropical depression.
 * 2100 UTC (2 p.m. PDT) – The NHC issues its last advisory on Tropical Depression Jimena.


 * September 7
 * 0900 UTC (2 a.m. PDT) – The NHC initiates advisories on Tropical Depression Fifteen-E.
 * 2100 UTC (2 p.m. PDT) – Tropical Depression Fifteen-E strengthens into Tropical Storm Linda.


 * September 10
 * 0300 UTC (8 p.m. PDT September 9) – Tropical Storm Linda strengthens to a Category 1 hurricane.


 * September 10
 * 2100 UTC (8 p.m. PDT) – Hurricane Linda weakens to a tropical storm.


 * September 11
 * 2100 UTC (8 p.m. PDT) – Tropical Storm Linda weakens to a tropical depression, becoming a remnant low at the same time.


 * September 16
 * 1130 UTC (4:30 am PDT) – The NHC initiates advisories on Tropical Depression Sixteen-E.
 * 1500 UTC (8 a.m. PDT) – Tropical Depression Sixteen-E strengthens into Tropical Storm Marty.


 * September 19
 * 0900 UTC (2 a.m. PDT) – Tropical Storm Marty weakens to a tropical depression.
 * 2100 UTC (2 p.m. PDT) – Tropical Depression Marty weakens to a remnant low.


 * September 23
 * 0300 UTC (8 p.m. PDT September 22) – Tropical Depression Seventeen-E forms south-southwest of Baja California.
 * 0900 UTC (2 a.m. PDT September 23) – Tropical Depression Seventeen-E strengthens into Tropical Storm Nora.


 * September 25
 * 0300 UTC (8 p.m. PDT September 24) – Tropical Storm Nora weakens to a tropical depression.
 * 0900 UTC (2 a.m. PDT) – Tropical Depression Nora becomes a remnant low.

October

 * October 1
 * 1500 UTC (8 a.m. PDT) – The NHC initiates advisories on Tropical Depression Eighteen-E.
 * 2100 UTC (2 p.m. PDT) – Tropical Depression Eighteen-E strengthens into Tropical Storm Olaf.


 * October 3
 * 0900 UTC (2 a.m. PDT) – Tropical Storm Olaf weakens to a tropical depression.


 * October 4
 * 0300 UTC (8 p.m. PDT October 3) – Tropical Depression Olaf becomes a remnant low.


 * October 11
 * 2100 UTC (2 p.m. PDT) – The NHC initiates advisories on Tropical Depression Nineteen-E.


 * October 12
 * 0300 UTC (8 p.m. PDT October 11) – Tropical Depression Nineteen-E strengthens into Tropical Storm Patricia.


 * October 14
 * 0600 UTC (11 p.m. PDT October 13) – Tropical Storm Patricia weakens to a tropical depression.
 * 0900 UTC (2 a.m. PDT) – Tropical Depression Patricia degenerates into a remnant low.


 * October 15
 * 2100 UTC (2 p.m. PDT) – The NHC initiates advisories on Tropical Depression Twenty-E.


 * October 16
 * 0300 UTC (8 p.m. PDT October 15) – Tropical Depression Twenty-E strengthens into Tropical Storm Rick.
 * 1500 UTC (8 a.m. PDT) – Tropical Storm Rick strengthens into a Category 1 hurricane.


 * October 17
 * 0300 UTC (8 p.m. PDT October 16) – Hurricane Rick strengthens into a Category 2 hurricane.
 * 0900 UTC (2 a.m. PDT) – Hurricane Rick strengthens into a Category 3 hurricane.
 * 0937 UTC (2:37 am PDT) – Hurricane Rick rapidly strengthens into a Category 4 hurricane.
 * 2210 UTC (3:10 pm PDT) – Hurricane Rick strengthens into a Category 5 hurricane, the first in the eastern Pacific since Hurricane Kenna in 2002.


 * October 18
 * 0300 UTC (8 p.m. PDT October 17) – Hurricane Rick becomes the second strongest hurricane ever recorded in the eastern Pacific with 180 mph (285 km/h) winds.
 * 2100 UTC (11 a.m. HST) – Tropical Depression Three-C forms 905 miles (1455 km) south-southeast of Honolulu.


 * October 19
 * 0300 UTC (8 p.m. PDT October 18) – Hurricane Rick weakens to a Category 4 hurricane.
 * 0900 UTC (2 a.m. PDT) – Hurricane Rick weakens to a Category 3 hurricane.
 * 1500 UTC (5 a.m. HST) – Tropical Depression Three-C strengthens into Tropical Storm Neki.
 * 1800 UTC (11 a.m. PDT) – Hurricane Rick weakens to a Category 2 hurricane.


 * October 20
 * 0000 UTC (5 p.m. PDT October 19) – Hurricane Rick weakens to a Category 1 hurricane.
 * 0300 UTC (8 p.m. PDT October 19) – Hurricane Rick weakens to a tropical storm.


 * October 21
 * 0000 UTC (2 p.m. HST October 20) – Tropical Storm Neki strengthens into a Category 1 hurricane.
 * ca.1400 UTC (7 a.m. PDT) – Tropical Storm Rick makes landfall near Mazatlán with 55 mph winds.
 * 1500 UTC (5 a.m. HST) – Hurricane Neki strengthens into a Category 2 hurricane.
 * 1500 UTC (11 a.m. PDT) – Tropical Storm Rick weakens to a tropical depression.
 * 2100 UTC (2 p.m. PDT) – Tropical Depression Rick weakens to a remnant low and the NHC issues their last advisory.
 * 2100 UTC (11 a.m. HST) – Hurricane Neki strengthens into a Category 3 hurricane.


 * October 23
 * 1500 UTC (5 a.m. HST) – Hurricane Neki weakens to a tropical storm.

November
November 30
 * The 2009 Pacific hurricane season officially ends.