The 2000 Pacific hurricane season was the annual cycle of tropical cyclone formation over the Pacific Ocean north of the equator and east of the International Date Line (IDL). The season officially began on May 15 in the Eastern Pacific proper (east of 140°W) and June 1 in the Central Pacific (140°W to the IDL), and ended on November 30 in both areas. This is historically the period during which most tropical cyclogenesis occurs in these respective areas. The season's first system, Hurricane Aletta, developed on May 22; its last, Tropical Storm Rosa, dissipated on November 8.
The season generated nineteen nameable tropical storms, an above-average number. However, most storms were weak, and the numbers of hurricanes and major hurricanes—Category 3 or higher on the five-level Saffir–Simpson scale—were both below average. Two tropical storms, Upana and Wene, formed in the Central Pacific; two more, Hurricane Daniel and Tropical Storm John, entered the region from the Eastern Pacific. Two tropical depressions formed that did not reach tropical storm strength.
Several storms affected land this season. Tropical storms Norman and Rosa made direct landfalls on the Mexican coast, the former killing nine people by flooding. The remnants of Tropical Storm Paul contributed to significant flash floods in Hawaii. Though it did not directly impact land, Hurricane Carlotta killed eighteen people when it sank the Lithuanian freighter MV Linkuva off the coast of Mexico with the loss of her crew.
This timeline documents tropical cyclone formations, strengthening, weakening, landfalls, and dissipations during the season. It includes information that was not released during the season, meaning that data from post-storm reviews by the National Hurricane Center (NHC) and the Central Pacific Hurricane Center (CPHC) 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 was then located. Prior to 2015, two time zones were utilized in the Eastern Pacific basin: Pacific for the Eastern Pacific, and Hawaii−Aleutian for the Central Pacific. 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 NHC 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.
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Timeline of events
May May 15 The 2000 Eastern Pacific hurricane season officially begins.
May 22 12:00 UTC (5:00 a.m. PDT) at Tropical Depression forms from a tropical wave about south of Acapulco, Guerrero.
May 23 06:00 UTC (11:00 p.m. PDT, May 22) at Tropical Depression strengthens into Tropical Storm Aletta about south of Zihuatanejo, Guerrero.
May 24 12:00 UTC (5:00 a.m. PDT) at Tropical Storm Aletta strengthens into a Category 1 hurricane on the Saffir–Simpson scale about southwest of Zihuatanejo. 18:00 UTC (11:00 a.m. PDT) at Hurricane Aletta strengthens to Category 2 intensity about southwest of Zihuatanejo.
May 25
00:00 UTC (5:00 p.m. PDT, May 24) at Hurricane Aletta attains its peak intensity, with maximum sustained winds of and a minimum central pressure of , about west-southwest of Zihuatanejo.
May 26 00:00 UTC (5:00 p.m. PDT, May 25) at Hurricane Aletta weakens to Category 1 intensity about west-southwest of Zihuatanejo.
May 27 00:00 UTC (5:00 p.m. PDT, May 26) at Hurricane Aletta weakens into a tropical storm about west-southwest of Zihuatanejo. 18:00 UTC (11:00 a.m. PDT) at Tropical Storm Aletta weakens into a tropical depression about west-southwest of Zihuatanejo, or about south-southeast of Cabo San Lucas, Baja California Sur.
May 28 00:00 UTC (5:00 p.m. PDT, May 27) at Tropical Depression Aletta is last noted as a tropical cyclone about south-southeast of Cabo San Lucas, dissipating shortly thereafter.
June June 1 The 2000 Central Pacific hurricane season officially begins.
June 13 06:00 UTC (11:00 p.m. PDT, June 12) at Tropical Depression forms from a tropical wave about south-southwest of Manzanillo, Colima. 12:00 UTC (5:00 a.m. PDT) at Tropical Depression strengthens into Tropical Storm Bud about south-southwest of Manzanillo.
June 14
06:00 UTC (11:00 p.m. PDT, June 13) at Tropical Storm Bud attains its peak intensity, with maximum sustained winds of and a minimum central pressure of , about south-southeast of Socorro Island.
June 16 12:00 UTC (5:00 a.m. PDT) at Tropical Storm Bud weakens into a tropical depression about north of Socorro Island.
June 17 12:00 UTC (5:00 a.m. PDT) at Tropical Depression Bud is last noted as a tropical cyclone about north-northeast of Socorro Island, degenerating into a remnant low shortly thereafter.
June 18 18:00 UTC (11:00 a.m. PDT) at Tropical Depression forms from a tropical wave about southeast of Puerto Ángel, Oaxaca.
June 19 00:00 UTC (5:00 p.m. PDT, June 18) at Tropical Depression strengthens into Tropical Storm Carlotta about south-southeast of Puerto Ángel.
June 20 06:00 UTC (11:00 p.m. PDT, June 19) at Tropical Storm Carlotta strengthens into a Category 1 hurricane about south of Acapulco. 18:00 UTC (11:00 a.m. PDT) at Hurricane Carlotta strengthens to Category 2 intensity about southeast of Acapulco.
June 21
00:00 UTC (5:00 p.m. PDT, June 20) at Hurricane Carlotta strengthens to Category 3 intensity about west-southwest of Acapulco. 06:00 UTC (11:00 p.m. PDT, June 20) at Hurricane Carlotta strengthens to Category 4 intensity about west-southwest of Acapulco. It simultaneously attains its peak intensity, with maximum sustained winds of and a minimum central pressure of , making it the strongest storm of the season.
June 22 06:00 UTC (11:00 p.m. PDT, June 21) at Hurricane Carlotta weakens to Category 3 intensity about west of Acapulco.
June 23 06:00 UTC (11:00 p.m. PDT, June 22) at Hurricane Carlotta weakens to Category 2 intensity about south of Cabo San Lucas. 18:00 UTC (11:00 a.m. PDT) at Hurricane Carlotta weakens to Category 1 intensity about south-southwest of Cabo San Lucas.
June 24 06:00 UTC (11:00 p.m. PDT, June 23) at Hurricane Carlotta weakens into a tropical storm about west-southwest of Cabo San Lucas.
June 25 00:00 UTC (5:00 p.m. PDT, June 24) at Tropical Storm Carlotta weakens into a tropical depression about 06:00 UTC (11:00 p.m. PDT, June 24) at Tropical Depression Carlotta is last noted as a tropical cyclone about west of Cabo San Lucas, dissipating shortly thereafter.
July July 6 12:00 UTC (5:00 a.m. PDT) at Tropical Depression forms from a tropical wave about southwest of Cabo San Lucas. It is already at its peak intensity, with maximum sustained winds of and a minimum central pressure of .
July 7 12:00 UTC (5:00 a.m. PDT) at Tropical Depression is last noted as a tropical cyclone about southwest of Cabo San Lucas, dissipating shortly thereafter.
July 20 00:00 UTC (2:00 p.m. HST, July 19) at Tropical Depression forms from an area of disturbed weather about southeast of Cape Kumukahi Light. 18:00 UTC (8:00 a.m. HST) at Tropical Depression strengthens into Tropical Storm Upana about southeast of Ka Lae.
July 21
06:00 UTC (8:00 p.m. HST, July 20) at Tropical Storm Upana attains its peak intensity, with maximum sustained winds of and an unknown minimum central pressure, about south-southeast of Ka Lae.
July 22 00:00 UTC (5:00 p.m. PDT, July 21) at Tropical Depression forms from a tropical wave about west of Socorro Island. 18:00 UTC (8:00 a.m. HST) at Tropical Storm Upana weakens into a tropical depression about south-southwest of Ka Lae. 18:00 UTC (11:00 a.m. PDT) at Tropical Depression attains its peak intensity, with maximum sustained winds of and a minimum central pressure of , about west-northwest of Socorro Island.
July 23 00:00 UTC (5:00 p.m. PDT, July 22) at Tropical Depression forms from a tropical wave about south-southeast of Manzanillo. 12:00 UTC (5:00 a.m. PDT) at Tropical Depression is last noted as a tropical cyclone about west-northwest of Socorro Island, dissipating shortly thereafter. 18:00 UTC (11:00 a.m. PDT) at Tropical Depression strengthens into Tropical Storm Daniel about south-southwest of Manzanillo.
July 24 00:00 UTC (2:00 p.m. HST, July 23) at Tropical Depression Upana is last noted as a tropical cyclone about south of Johnston Atoll, dissipating shortly thereafter. 12:00 UTC (5:00 a.m. PDT) at Tropical Storm Daniel strengthens into a Category 1 hurricane about southwest of Manzanillo.
July 25
00:00 UTC (5:00 p.m. PDT, July 24) at Hurricane Daniel strengthens to Category 2 intensity about south-southwest of Cabo San Lucas. 06:00 UTC (11:00 p.m. PDT, July 24) at Hurricane Daniel strengthens to Category 3 intensity about southwest of Cabo San Lucas. 18:00 UTC (11:00 a.m. PDT) at Hurricane Daniel attains its peak intensity, with maximum sustained winds of and a minimum central pressure of , about southwest of Cabo San Lucas.
July 26 06:00 UTC (11:00 p.m. PDT, July 25) at Tropical Depression forms from a tropical wave about south-southwest of Manzanillo. 18:00 UTC (11:00 a.m. PDT) at Tropical Depression strengthens into Tropical Storm Emilia about southwest of Manzanillo.
July 27 06:00 UTC (11:00 p.m. PDT, July 26) at Hurricane Daniel weakens to Category 2 intensity about west-southwest of Cabo San Lucas. 18:00 UTC (11:00 a.m. PDT) at Tropical Storm Emilia attains its peak intensity, with maximum sustained winds of and a minimum central pressure of , about west of Socorro Island.
July 28 06:00 UTC (11:00 p.m. PDT, July 27) at Hurricane Daniel restrengthens to Category 3 intensity about west-southwest of Cabo San Lucas. 18:00 UTC (11:00 a.m. PDT) at Hurricane Daniel weakens back to Category 2 intensity about west of Cabo San Lucas.
July 29
00:00 UTC (2:00 p.m. HST, July 28) at Hurricane Daniel weakens to Category 1 intensity about east of Cape Kumukahi Light, as it crosses 140°W into the Central Pacific basin. 18:00 UTC (11:00 a.m. PDT) at Tropical Storm Emilia weakens into a tropical depression about west of Socorro Island.
July 30 00:00 UTC (2:00 p.m. HST, July 29) at Hurricane Daniel weakens into a tropical storm about east of Cape Kumukahi Light. 00:00 UTC (5:00 p.m. PDT, July 29) at Tropical Depression Emilia is last noted as a tropical cyclone about west of Socorro Island, or about west-southwest of Cabo San Lucas, dissipating shortly thereafter.
August August 3 12:00 UTC (2:00 a.m. HST) at Tropical Storm Daniel weakens into a tropical depression about northeast of Niʻihau. 12:00 UTC (5:00 a.m. PDT) at Tropical Depression forms from a tropical wave about west-southwest of Manzanillo.
August 4
00:00 UTC (5:00 p.m. PDT, August 3) at Tropical Depression strengthens into Tropical Storm Fabio about southwest of Cabo San Lucas. 12:00 UTC (5:00 a.m. PDT) at Tropical Storm Fabio attains its peak intensity, with maximum sustained winds of and a minimum central pressure of , about southwest of Cabo San Lucas.
August 5 00:00 UTC (5:00 p.m. PDT, August 4) at Tropical Depression forms from a tropical wave about south of Manzanillo. 06:00 UTC (8:00 p.m. HST, August 4) at Tropical Depression Daniel is last noted as a tropical cyclone about northwest of Niʻihau, dissipating shortly thereafter.
August 6 00:00 UTC (5:00 p.m. PDT, August 5) at Tropical Storm Fabio weakens into a tropical depression about west-southwest of Cabo San Lucas. 12:00 UTC (5:00 a.m. PDT) at Tropical Depression strengthens into Tropical Storm Gilma about south of Cabo San Lucas.
August 8 00:00 UTC (5:00 p.m. PDT, August 7) at Tropical Depression Fabio is last noted as a tropical cyclone about west-southwest of Cabo San Lucas, dissipating shortly thereafter.