Timeline of the 2007 Pacific hurricane season

The 2007 Pacific hurricane season was an event in the annual cycle of tropical cyclone formation. This timeline documents all the storm formations, strengthening, weakening, landfalls, extratropical transitions, as well as dissipation. The timeline also includes information 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 season officially started on May 15, 2007 in the eastern Pacific, designated as the area east of 140°W, and on June 1, 2007 in the central Pacific, which is between the International Date Line and 140°W, and lasted until November 30, 2007. These dates conventionally delimit the period of each year when most tropical cyclones form in the Pacific basin. The season began slowly; through the end of July, the seasonal ACE was the third lowest since the geostationary satellite era began in the 1966 Pacific hurricane season.cite web|author=Blake/Mainelli/Rhome/Brown|date=2007-08-01|title=July Monthly Tropical Weather Summary|publisher=National Hurricane Center|accessdate=2007-08-01|url=http://www.nhc.noaa.gov/archive/2007/tws/MIATWSEP_jul.shtml?] The inactivity continued through the next month, which was the third quietest August in terms of ACE since reliable records began in the basin during the 1971 Pacific hurricane season.cite web|author=Blake & Mainelli|year=2007|title=August Monthly Tropical Weather Summary|publisher=National Hurricane Center|accessdate=2007-09-01|url=http://www.nhc.noaa.gov/archive/2007/tws/MIATWSEP_aug.shtml?] Tropical Storm Barbara in June caused $55 million (2007 USD) in crop damage in southeastern Mexico from heavy precipitation. [cite web|author=El Universal|year=2007|title=Destruye tormenta tropical más de 9 mil hectáreas de plátano|accessdate=2007-07-26|url=http://www.teorema.com.mx/articulos.php?id_sec=47&id_art=4064&id_ejemplar=0|language=Spanish] In August, Hurricane Flossie formed in the Eastern Pacific and crossed into the Central Pacific, threatening Hawaii but causing little damage. In early September, Hurricane Henriette dropped heavy rainfall in southwest Mexico, which caused nine fatalities and $25 million (2007 USD) in damage.

Timeline of storms

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May

;May 15:*The Eastern Pacific hurricane season officially begins.cite web | author = Atlantic Oceanographic and Meteorological Laboratory, Hurricane Research Division | title = Frequently Asked Questions: When is hurricane season?|publisher = National Oceanic and Atmospheric Administration | accessdate = 2008-08-21 | url = http://www.aoml.noaa.gov/hrd/tcfaq/G1.html]

;May 26:*5 p.m. PDT (0000 UTC May 27) – Tropical Depression One-E forms 345 mi (555 km) south of the tip of Baja California.cite web |author=Lixion A. Avila|title=Tropical Cyclone Report: Tropical Storm Alvin |publisher=National Hurricane Center |date=2007-07-05 |accessdate=2007-07-06 |url=http://www.nhc.noaa.gov/pdf/TCR-EP012007_Alvin.pdf]

;May 28:*5 p.m. PDT (0000 UTC May 29) – Tropical Depression One-E strengthens into Tropical Storm Alvin.

;May 29:*11 a.m. PDT (1800 UTC) – Tropical Depression Two-E forms 115 mi (185 km) south-southeast of Puerto Escondido, Oaxaca, Mexico.cite web |author=Richard D. Knabb|title=Tropical Cyclone Report: Tropical Storm Barbara |publisher=National Hurricane Center |date=2007-08-21 |accessdate=2007-08-24 |url=http://www.nhc.noaa.gov/pdf/TCR-EP022007_Barbara.pdf] :*11 p.m. PDT (0600 UTC May 30) – Tropical Storm Alvin weakens to a tropical depression.;May 30:*5 a.m. PDT (1200 UTC) – Tropical Depression Two-E strengthens into Tropical Storm Barbara.

;May 31:*5 p.m. PDT (0000 UTC June 1) – Tropical Depression Alvin degenerates into a remnant low.:*5 p.m. PDT (0000 UTC June 1) – Tropical Storm Barbara weakens to a tropical depression.:*11 p.m. PDT (0600 UTC June 1) – Tropical Depression Barbara restrengthens into a tropical storm.

June

;June 2:*6 a.m. PDT (1300 UTC) – Tropical Storm Barbara makes landfall just northwest of the Mexico–Guatemala border with 50 mph (85 km/h) winds.The figures for maximum sustained winds and position estimates are rounded to the nearest 5 units (knots, miles, or kilometers), following the convention used in the National Hurricane Center's [http://www.nhc.noaa.gov/archive/2004/index.shtml operational products] for each storm. All other units are rounded to the nearest digit.] :*11 a.m. PDT (1800 UTC) – Tropical Storm Barbara weakens back to a tropical depression.:*5 p.m. PDT (0000 UTC June 3) – Tropical Depression Barbara dissipates.

;June 11:*5 a.m. PDT (1200 UTC) – Tropical Depression Three-E forms 520 miles (835 km) south of the southern tip of the Baja California peninsula.cite web |author=James L. Franklin|title=Tropical Cyclone Report: Tropical Depression Three-E |publisher=National Hurricane Center |date=2007-07-12 |accessdate=2007-07-14
url=http://www.nhc.noaa.gov/pdf/TCR-EP032007_Three-E.pdf]

;June 12:*5 p.m. PDT (0000 UTC June 13) – Tropical Depression Three-E degenerates into a remnant low.

July

; July 9:*11 a.m. PDT (1800 UTC) – Tropical Depression Four-E forms several hundred miles southwest of Baja California.cite web
author=Jack Beven
title=Tropical Cyclone Report: Tropical Depression Four-E
publisher=National Hurricane Center
date=2007-08-27
accessdate=2008-02-22
url=http://www.nhc.noaa.gov/pdf/TCR-EP042007_Four-E.pdf]

; July 10:*11 p.m. PDT (0600 UTC July 11) – Tropical Depression Four-E degenerates to a remnant low.

;July 14:*5 a.m. PDT (1200 UTC) – Tropical Depression Five-E forms about 690 mi (1,110 km) south-southwest of the southern tip of Baja California.cite web |author=Jamie R. Rhome|title=Tropical Cyclone Report: Tropical Depression Five-E |publisher=National Hurricane Center |date=2007-07-17 |accessdate=2007-08-08
url=http://www.nhc.noaa.gov/pdf/TCR-EP052007_Five-E.pdf] :*5 a.m. PDT (1200 UTC) – Tropical Depression Six-E forms about halfway between Mexico and the Hawaiian islands.cite web
author=Michelle Mainelli
title=Tropical Cyclone Report: Hurricane Cosme
publisher=National Hurricane Center
date=2007-12-17
accessdate=2008-02-22
url=http://www.nhc.noaa.gov/pdf/TCR-EP062007_Cosme.pdf]

;July 15:*11 a.m. PDT (1800 UTC) – Tropical Depression Six-E strengthens into Tropical Storm Cosme.:*5 p.m. PDT (0000 UTC July 16) – Tropical Depression Five-E degenerates into a remnant low.;July 16:*11 a.m. PDT (1800 UTC) – Tropical Storm Cosme strengthens into Hurricane Cosme.:*5 p.m. PDT (0000 UTC July 17) – Hurricane Cosme is downgraded to a tropical storm.

;July 18:*"c." 11 a.m. PDT (8 a.m. HST, 1800 UTC) – Tropical Storm Cosme is downgraded to a tropical depression as it crosses the 140°W boundary and moves into the Central Pacific Hurricane Center's area of responsibility.

;July 21:*5 p.m. PDT (0000 UTC July 22) – Tropical Depression Seven-E forms south of Manzanillo.cite web |author=Daniel P. Brown|title=Tropical Cyclone Report: Tropical Storm Dalila |publisher=National Hurricane Center |date=2007-08-29 |accessdate=2008-02-22|url=http://www.nhc.noaa.gov/pdf/TCR-EP072007_Dalila.pdf]

;July 22:*8 a.m. HST (1800 UTC) – The final advisory is issued on dissipating Tropical Depression Cosme.

;July 23:*5 p.m. PDT (0000 UTC July 24) – Tropical Depression Seven-E strengthens into Tropical Storm Dalila.

;July 26:*11 p.m. PDT (0600 UTC July 27) – Tropical Storm Dalila is downgraded to a tropical depression.

;July 27:*11 a.m. PDT (1800 UTC) – Tropical Depression Dalila weakens into a low.

;July 31:*5 a.m. PDT (1200 UTC) – Tropical Depression Eight-E forms 1,070 mi (1,715 km) southwest of the southern tip of Baja California.cite web |author=Eric S. Blake|title=Tropical Cyclone Report: Tropical Storm Erick |publisher=National Hurricane Center |date=2007-08-23 |accessdate=2007-08-24 |url=http://www.nhc.noaa.gov/pdf/TCR-EP082007_Erick.pdf] :*5 p.m. PDT (0100 UTC August 1) – Tropical Depression Eight-E strengthens into Tropical Storm Erick.

August

;August 1:*5 p.m. PDT (0000 UTC August 2) – Tropical Storm Erick weakens into a tropical depression.:*11 p.m. PDT (0600 UTC August 2) – Tropical Depression Erick degenerates into a tropical wave.

;August 8:*11 a.m. PDT (1800 UTC) – Tropical Depression Nine-E forms well to the southwest of Baja California.cite web
author=Richard J. Pasch and David P. Roberts
title=Tropical Cyclone Report: Hurricane Flossie
publisher=National Hurricane Center
date=2008-01-10
accessdate=2008-02-22
url=http://www.nhc.noaa.gov/pdf/TCR-EP092007_Flossie.pdf] :*5 p.m. PDT (0000 UTC August 9) – Tropical Depression Nine-E is upgraded to Tropical Storm Flossie.;August 10:*5 a.m. PDT (1200 UTC) – Tropical Storm Flossie is upgraded to Hurricane Flossie.:*11 p.m. PDT (0600 UTC August 11) – Hurricane Flossie is upgraded to a Category 3 major hurricane, becoming the first major hurricane of the season.

;August 11:*5 a.m. PDT (1200 UTC, 2 a.m. HST) – Hurricane Flossie is upgraded to a Category 4 hurricane, and crosses 140°W into the Central Pacific Hurricane Center's area of responsibility.

;August 15:*2 a.m. HST (1200 UTC) – Hurricane Flossie is downgraded to a tropical storm.:*8 p.m. HST (0600 UTC August 16) – Tropical Storm Flossie is downgraded to a tropical depression.

;August 16:*8 a.m. HST (1800 UTC) – Tropical Depression Flossie dissipates.

;August 29:*5 a.m. PDT (1200 UTC) – Tropical Depression Ten-E forms west of Manzanillo, Mexico.cite web
author=Lixion A. Avila
title=Tropical Cyclone Report: Tropical Storm Gil
publisher=National Hurricane Center
date=2007-10-10
accessdate=2008-02-22
url=http://www.nhc.noaa.gov/pdf/TCR-EP102007_Gil.pdf] :*11 a.m. PDT (1800 UTC) – Tropical Depression Ten-E is upgraded to Tropical Storm Gil.

;August 29:*11 p.m. PDT (0600 UTC August 30) – Tropical Depression Eleven-E forms southeast of Acapulco, Mexico.cite web
author=Richard D. Knabb
title=Tropical Cyclone Report: Tropical Storm Henriette
publisher=National Hurricane Center
date=2007-11-23
accessdate=2008-02-22
url=http://www.nhc.noaa.gov/pdf/TCR-EP112007_Henriette.pdf]

;August 31:*5 a.m. PDT (1200 UTC) – Tropical Depression Eleven-E is upgraded to Tropical Storm Henriette.

;August 31:*5 p.m. PDT (0000 UTC September 1) – Tropical Storm Gil is downgraded to a tropical depression.

eptember

;September 2:*11 a.m. PDT (1800 UTC) – Tropical Depression Gil is downgraded to a remnant low.

;September 3:*11 p.m. PDT (0600 UTC ;September 4) – Tropical Storm Henriette is upgraded to Hurricane Henriette.

;September 4:*2 p.m. PDT (2100 UTC) – Hurricane Henriette makes landfall just east of San José del Cabo, Mexico with 80 mph (130 km/h) winds.

;September 5:*5 p.m. PDT (0000 UTC September 6) – Hurricane Henriette is downgraded to a tropical storm.:*5 p.m. PDT (0000 UTC September 6) – Tropical Storm Henriette makes a second landfall near Guaymas, Mexico.

;September 5:*11 p.m. PDT (0600 UTC September 6) – Tropical Storm Henriette is downgraded to a tropical depression.;September 6:*5 a.m. PDT (1200 UTC) – Tropical Depression Henriette dissipates.

;September 17:*11 p.m. PDT (0600 UTC September 18) – Tropical Depression Twelve-E forms south-southeast of the southern tip of Baja California.cite web
author=James L. Franklin
title=Tropical Cyclone Report: Hurricane Ivo
publisher=National Hurricane Center
date=2007-12-03
accessdate=2008-02-22
url=http://www.nhc.noaa.gov/pdf/TCR-EP122007_Ivo.pdf]

;September 18:*5 p.m. PDT (0000 UTC September 19) – Tropical Depression Twelve-E is upgraded to Tropical Storm Ivo.

;September 18:*11 p.m. PDT (0600 UTC September 19) – Tropical Depression Thirteen-E forms west-southwest of the southern tip of Baja California.cite web
author=Jack Beven and Chris Landsea
title=Tropical Cyclone Report: Tropical Depression Thirteen-E
publisher=National Hurricane Center
date=2007-10-17
accessdate=2008-02-22
url=http://www.nhc.noaa.gov/pdf/TCR-EP132007_Thirteen-E.pdf]

;September 19:*5 p.m. PDT (0000 UTC September 20) – Tropical Storm Ivo is upgraded to Hurricane Ivo.

;September 20:*5 p.m. PDT (0000 UTC September 21) – Tropical Depression Thirteen-E is downgraded to a remnant low.

;September 21:*11 a.m. PDT (1800 UTC) – Hurricane Ivo is downgraded to a tropical storm.

;September 22:*5 p.m. PDT (0000 UTC September 23) – Tropical Storm Ivo is downgraded to a tropical depression.

;September 23:*11 a.m. PDT (1800 UTC) – Tropical Depression Ivo is downgraded to a low.

;September 28:*5 p.m. PDT (0000 UTC September 29) – Tropical Depression Fourteen-E forms west-southwest of Manzanillo.cite web
author=Robert Berg and Jamie R. Rhome
title=Tropical Cyclone Report: Tropical Storm Juliette
publisher=National Hurricane Center
date=2007-11-08
accessdate=2008-02-22
url=http://www.nhc.noaa.gov/pdf/TCR-EP142007_Juliette.pdf]

;September 29:*5 a.m. PDT (1200 UTC) – Tropical Depression Fourteen-E is upgraded to Tropical Storm Juliette.

October

;October 1:*5 p.m. PDT (0000 UTC October 2) – Tropical Storm Juliette is downgraded to a tropical depression.

;October 2:*5 A.m. PDT (1200 UTC) – Tropical Depression Juliette is downgraded to a remnant low.

;October 14:*5 p.m. PDT (0000 UTC October 15) – Tropical Depression Fifteen-E forms southwest of Manzanillo.cite web
author=Michelle Mainelli
title=Tropical Cyclone Report: Tropical Storm Kiko
publisher=National Hurricane Center
date=2007-11-18
accessdate=2008-02-22
url=http://www.nhc.noaa.gov/pdf/TCR-EP152007_Kiko.pdf] ;October 16:*5 a.m. PDT (1200 UTC) – Tropical Depression Fifteen-E is upgraded to Tropical Storm Kiko.:*11 a.m. PDT (1800 UTC) – Tropical Storm Kiko is downgraded to a tropical depression.

;October 16:*11 p.m. PDT (0600 UTC October 17) – Tropical Depression Kiko restrengthens into a tropical storm.

;October 22:*5 p.m. PDT (0000 UTC October 23) – Tropical Storm Kiko is downgraded to a tropical depression.

;October 23:*5 p.m. PDT (0000 UTC October 24) – Tropical Depression Kiko is downgraded to a remnant low.

November

;November 30:*The Eastern Pacific hurricane season officially ends.cite web | author = Atlantic Oceanographic and Meteorological Laboratory, Hurricane Research Division | title = Frequently Asked Questions: When is hurricane season?|publisher = National Oceanic and Atmospheric Administration | accessdate = 2008-08-21 | url = http://www.aoml.noaa.gov/hrd/tcfaq/G1.html]

ee also

*2007 Pacific hurricane season
*List of Pacific hurricane seasons
*Timeline of the 2007 Atlantic hurricane season
*Timeline of the 2007 Pacific typhoon season
*Timeline of the 2007 North Indian Ocean cyclone season
*Timeline of the 2007-08 South-West Indian Ocean cyclone season
*Timeline of the 2007-08 South Pacific cyclone season
*Timeline of the 2007-08 Australian region cyclone season
*1966 Pacific hurricane season and 1971 Pacific hurricane season, seasons with similar bouts of inactivity

Notes

References