The 2019 Pacific hurricane season was an event in the annual cycle of tropical cyclone formation, in which tropical cyclones form in the eastern Pacific Ocean. The season officially started on May 15 in the eastern PacificâÂÂeast of 140ðWâÂÂand June 1 in the central PacificâÂÂbetween the International Date Line and 140ðW, and ended on November 30. These dates conventionally delimit the period of each year when most tropical cyclones form in the eastern Pacific basin.
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, 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. The time zones utilized (east to west) are: Central, Mountain, Pacific and Hawaii. 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
May
May 15
- The 2019 Eastern Pacific hurricane season officially begins.
June
June 1
- The 2019 Central Pacific hurricane season officially begins.
June 25
- 21:00 UTC (4:00 p.m. CDT) at â Tropical Depression One-E forms about southwest of Manzanillo, Mexico.
June 26
- 15:00 UTC (9:00 a.m. MDT) at â Tropical Depression One-E intensifies into Tropical Storm Alvin roughly southwest of Manzanillo, Mexico.
June 28
- 03:00 UTC (8:00 p.m. PDT June 27) at â Tropical Storm Alvin strengthens into a Category 1 hurricane roughly southwest of the southern tip of the Baja California Peninsula. Simultaneously, Alvin achieves peak intensity with 1-minute sustained winds of and a minimum pressure of .
- 09:00 UTC (2:00 a.m. PDT) at â Hurricane Alvin weakens back to a tropical storm about southwest of the southern tip of the Baja California Peninsula.
June 29
- 09:00 UTC (2:00 a.m. PDT) at â Tropical Storm Alvin weakens further to a tropical depression about west-southwest of the southern tip of the Baja California Peninsula.
- 15:00 UTC (8:00 a.m. PDT) at â Tropical Depression Alvin degenerates into a post-tropical cyclone about west of the southern tip of the Baja California Peninsula.
June 30
- 15:00 UTC (9:00 a.m. MDT) at â Tropical Storm Barbara forms from a tropical wave roughly south of the southern tip of the Baja California Peninsula.
July
July 1
- 21:00 UTC (2:00 p.m. PDT) at â Tropical Storm Barbara strengthens into a Category 1 hurricane roughly southwest of the southern tip of Baja California.
July 2
- 03:00 UTC (8:00 p.m. PDT July 1) at â Hurricane Barbara rapidly strengthens into a Category 2 hurricane roughly southwest of the southern tip of Baja California.
- 12:30 UTC (2:30 a.m. HST) at â Hurricane Barbara rapidly strengthens into a Category 4 hurricane roughly southwest of the southern tip of Baja California, bypassing Category 3 status entirely.
July 3
- 03:00 UTC (5:00 p.m. HST July 2) at â Hurricane Barbara reaches its peak intensity with sustained winds of and a minimum pressure of roughly southwest of the southern tip of Baja California.
July 4
- 09:00 UTC (11:00 p.m. HST July 2) at â Hurricane Barbara weakens into a category 3 hurricane about west-southwest of the southern tip of Baja California.
- 21:00 UTC (11:00 a.m. HST) at â Hurricane Barbara weakens into a category 2 hurricane about west-southwest of the southern tip of Baja California.
July 5
- 09:00 UTC (11:00 p.m. HST July 4) at â Hurricane Barbara weakens into a category 1 hurricane about west-southwest of the southern tip of Baja California.
- 15:00 UTC (5:00 a.m. HST) at â Hurricane Barbara weakens into a tropical storm about west of the southern tip of Baja California.
July 6
- 15:00 UTC (5:00 a.m. HST) at â Tropical Storm Barbara becomes a post-tropical cyclone about east of Hilo, Hawaii.
- 15:00 UTC (8:00 a.m. PDT) at â Tropical Storm Cosme forms roughly southwest of the southern tip of the Baja California Peninsula.
- 21:00 UTC (2:00 p.m. PDT) at â Tropical Storm Cosme reaches its peak intensity of maximum sustained winds of and a minimum barometric pressure of roughly southwest of the southern tip of the Baja California Peninsula.
July 8
- 03:00 UTC (8:00 p.m. PDT July 7) at â Tropical Storm Cosme weakens to a tropical depression roughly west-southwest of the southern tip of the Baja California Peninsula.
- 15:00 UTC (8:00 a.m. PDT) at â Tropical Storm Cosme degenerates into a post-tropical remnant low roughly west of the southern tip of the Baja California Peninsula.
July 12
- 21:00 UTC (3:00 p.m. MDT) at â Tropical Depression Four-E forms about southwest of Manzanillo, Mexico.
July 14
- 15:00 UTC (8:00 a.m. PDT) at â Tropical Depression Four-E degenerates into a remnant low about southwest of the southern tip of the Baja California Peninsula.
July 22
- 09:00 UTC (2:00 p.m. PDT) at â Tropical Depression Five-E forms about southwest of the southern tip of the Baja California Peninsula.
July 23
- 09:00 UTC (2:00 a.m. PDT) at â Tropical Depression Five-E strengthens into Tropical Storm Dalila about southwest of the southern tip of the Baja California Peninsula.
July 24
- 09:00 UTC (2:00 a.m. PDT) at â Tropical Storm Dalila weakens into a tropical depression about southwest of the southern tip of the Baja California Peninsula.
July 25
- 15:00 UTC (8:00 a.m. PDT) at â Tropical Depression Dalila degenerates into a remnant low about west of the southern tip of the Baja California Peninsula.
July 27
- 15:00 UTC (5:00 a.m. HST) at â Tropical Depression Six-E forms from a tropical wave roughly east of Hilo, Hawaii.
- 21:15 UTC (2:15 p.m. PDT) at â Tropical Depression Six-E strengthens into Tropical Storm Erick roughly east of Hilo, Hawaii.
July 28
- 15:00 UTC (9:00 a.m. MDT) at â Tropical Depression Seven-E forms roughly south-southwest of Manzanillo, Mexico.
July 29
- 09:00 UTC (11:00 p.m. HST July 28) at â Tropical Depression Seven-E intensifies into Tropical Storm Flossie roughly southwest of Manzanillo, Mexico.
July 30
- 03:00 UTC (5:00 p.m. HST July 29) at â Tropical Storm Erick becomes a hurricane roughly east-southeast of Hilo, Hawaii.
- 15:00 UTC (5:00 a.m. HST) at â Erick becomes a major hurricane roughly east-southeast of Hilo, Hawaii.
- 21:00 UTC (11:00 a.m. HST) at â Erick becomes a Category 4 hurricane roughly east-southeast of Hilo, Hawaii.
- 21:00 UTC (11:00 a.m. HST) at â Tropical Storm Flossie becomes a hurricane roughly southwest of the southern tip of Baja California.
July 31
- 03:00 UTC (5:00 p.m. HST July 30) at â Flossie reaches its peak intensity with maximum sustained winds of and a minimum barometric pressure of roughly southwest of the southern tip of Baja California.
- 09:00 UTC (11:00 p.m. HST July 30) at â Hurricane Erick weakens to category 3 intensity roughly east-southeast of Hilo, Hawaii.
- 21:00 UTC (11:00 a.m. HST) at â Hurricane Flossie weakens to a tropical storm roughly west-southwest of the southern tip of Baja California.
August
August 1
- 03:00 UTC (5:00 p.m. HST July 31) at â Erick weakens to a category 2 hurricane roughly southeast of Hilo, Hawaii.
- 09:00 UTC (11:00 p.m. HST July 31) at â Erick weakens to category 1 intensity roughly southeast of Hilo, Hawaii.
August 2
- 03:00 UTC (5:00 p.m. HST August 1) at â Hurricane Erick weakens to a tropical storm roughly south of Hilo, Hawaii.
August 3
- 15:00 UTC (8:00 a.m. PDT) at â Tropical Depression Eight-E forms about southwest of the southern tip of Baja California.
- 15:00 UTC (8:00 a.m. PDT) at â Tropical Depression Eight-E strengthens into Tropical Storm Gil about west-southwest of the southern tip of Baja California.
August 4
- 03:00 UTC (5:00 p.m. HST August 3) at â Tropical Storm Erick weakens into a tropical depression roughly west-southwest of Honolulu, Hawaii.
- 09:00 UTC (2:00 a.m. PDT) at â Gil weakens into a tropical depression about west-southwest of the southern tip of Baja California.
August 5
- 03:00 UTC (8:00 p.m. PDT August 4) at â Gil degenerates into a remnant low about west-southwest of the southern tip of Baja California.
- 03:00 UTC (5:00 p.m. HST August 4) at â Tropical Storm Flossie degenerates into a tropical depression roughly east of Hilo, Hawaii.
- 03:00 UTC (5:00 p.m. HST August 4) at â Tropical Depression Erick degenerates into a remnant low roughly north of Johnston Island.
August 6
- 03:00 UTC (5:00 p.m. HST August 5) at â Flossie degenerates into a remnant low roughly north-northeast of Hilo, Hawaii.
August 12
- 03:00 UTC (9:00 p.m. MDT August 11) at â Tropical Depression Nine-E forms from a tropical wave about south of the southern tip of Baja California.
- 09:00 UTC (3:00 a.m. MDT) at â Tropical Depression Nine-E strengthens into Tropical Storm Henriette about south-southwest of the southern tip of Baja California.
August 13
- 09:00 UTC (2:00 a.m. PDT) at â Henriette degenerates into a depression about west-southwest of the southern tip of Baja California.
- 15:00 UTC (8:00 a.m. PDT) at â Henriette degenerates into a post-tropical remnant low about west-southwest of the southern tip of Baja California.
August 21
- 15:00 UTC (9:00 a.m. MDT) at â Tropical Depression Ten-E forms from a low-pressure area roughly south-southeast of the southern tip of Baja California.
- 21:00 UTC (3:00 p.m. MDT) at â Tropical Depression Ten-E strengthens into Tropical Storm Ivo roughly south of the southern tip of Baja California.
August 23
- 16:00 UTC (9:00 a.m. PDT) at â Tropical Storm Ivo reaches its peak intensity with maximum sustained winds of and a minimum barometric pressure of roughly southwest of the southern tip of Baja California.
August 25
- 09:00 UTC (2:00 a.m. PDT) at â Tropical Storm Ivo weakens into a tropical depression roughly west-northwest of the southern tip of Baja California.
- 21:00 UTC (2:00 p.m. PDT) at â Tropical Storm Ivo degenerates into a remnant low roughly west-northwest of the southern tip of Baja California.
September
September 1
- 09:00 UTC (3:00 a.m. MDT) at â Tropical Storm Juliette forms from a tropical wave roughly south-southwest of Manzanillo, Mexico and about south-southeast of the southern tip of Baja California.
September 2
- 21:00 UTC (3:00 p.m. MDT) at â Tropical Storm Juliette becomes a Category 1 hurricane roughly south-southwest of the southern tip of Baja California.
September 3
- 03:00 UTC (9:00 p.m. MDT September 2) at â Hurricane Juliette rapidly intensifies to Category 3 status roughly southwest of the southern tip of Baja California.
- 15:00 UTC (8:00 a.m. PDT) at â Hurricane Juliette reaches its peak intensity with sustained winds of and a central pressure of roughly southwest of the southern tip of Baja California.
September 4
- 09:00 UTC (2:00 a.m. PDT) at â Hurricane Juliette weakens to Category 2 status roughly west-southwest of the southern tip of Baja California.
- 15:00 UTC (5:00 a.m. HST) at â Tropical Depression Twelve-E forms roughly east-southeast of South Point, Hawaii.
September 5
- 03:00 UTC (8:00 p.m. PDT September 4) at â Hurricane Juliette weakens to Category 1 status roughly west-southwest of the southern tip of Baja California.
- 23:00 UTC (1:00 p.m. HST) at â Tropical Depression Twelve-E strengthens into Tropical Storm Akoni roughly southeast of Hilo, Hawaii.
September 6
- 15:00 UTC (5:00 p.m. HST) at â Tropical Storm Akoni degenerates into a remnant low roughly south-southeast of Hilo, Hawaii.
- 21:00 UTC (11:00 a.m. HST) at â Hurricane Juliette weakens to a tropical storm roughly west of the southern tip of Baja California.
September 7
- 21:00 UTC (11:00 a.m. HST) at â Tropical Storm Juliette degenerates into a remnant low roughly west of the southern tip of Baja California.
September 12
- 15:00 UTC (9:00 a.m. MDT) at â Tropical Depression Thirteen-E forms roughly south of the southern tip of Baja California.
- 21:00 UTC (3:00 p.m. MDT) at â Tropical Depression Thirteen-E intensifies into Tropical Storm Kiko roughly south-southwest of the southern tip of Baja California.
September 14
- 21:00 UTC (2:00 p.m. PDT) at â Tropical Storm Kiko strengthens into a Category 1 hurricane roughly west-southwest of the southern tip of Baja California.
September 15
- 00:30 UTC (5:30 p.m. PDT September 14) at â Hurricane Kiko rapidly intensifies into a high-end Category 2 hurricane roughly west-southwest of the southern tip of Baja California.
- 03:00 UTC (8:00 p.m. PDT September 14) at â Kiko becomes a major hurricane roughly west-southwest of the southern tip of Baja California.
October
November
November 30
- The 2019 Pacific hurricane season officially ends.
See also
References
External links