During 2000, 140 tropical or subtropical cyclones formed throughout the world. The cyclones originated in seven different areas called basins, where respective weather agencies named 81 storms when they attained maximum sustained winds of 65 km/h (40 mph). The strongest storm of the year was Cyclone Hudah in the south-west Indian Ocean, which attained a minimum pressure of , and 10-minute maximum sustained winds of . Cyclone Paul tied Hudah's peak winds in the Australian basin.
The cyclones in 2000 produced significant impacts in parts of Africa, Asia, Oceania, and North America. In the western Pacific Ocean, floods produced by Typhoon Kai-tak and a nearby tropical depression led to the Payatas landslide that killed 218 people. In southeastern Africa, Cyclone Eline struck Madagascar and Mozambique after a period of above-normal rainfall, and the ensuing floods killed at least 700 people. The costliest storm was Saomai, which caused $6.3 billion in damage. The accumulated cyclone energy (ACE) index for the year 2000 (seven basins combined), as calculated by Colorado State University was 677.3 units.
There was an above-average number of storms during the year; the most active basin of the year was the Western Pacific, where a below-average 23 named storms formed. The Eastern Pacific and the North Atlantic were both relatively above-average, with 19 named storms forming in the Eastern Pacific and 15 in the North Atlantic. The Southern Hemisphere was also relatively average. Three Category 5 tropical cyclones were formed in 2000.
Global atmospheric and hydrological conditions As the year began, a strong La Niña was peaking, with temperature anomalies going below . NOAA's May hurricane outlook indicated that overall global conditions were conducive to increased activity in the North Atlantic basin. The La Niña began to weaken towards the latter part of 2000, with signs of weakening occurring as early as May. Astride crossed over from the previous year, dissipating on January 3.
Summary
North Atlantic Ocean
An average Atlantic hurricane season features 12 tropical storms, 6 hurricanes, and 3 major hurricanes, and features an Accumulated Cyclone Energy (ACE) count of 106. In 2000 in the North Atlantic basin, there were above-average numbers of named storms and hurricanes and an average number of major hurricanes. 2000 had an ACE count of 119, slightly higher than the average.
The season began with tropical depressions One and Two, both of which formed in June and affected no landmasses. Hurricane Alberto was the first named system of the 2000 season, intensifying into and peaking as a Category 3 hurricane. Alberto was the longest-lived storm of the 2000 Atlantic hurricane season. Four formed east of Florida, though it was not able to strengthen further and dissipated on August 11. Tropical Storm Beryl, Tropical Storm Chris, and Hurricane Debby all formed within a week of each other, with Beryl causing minimal damages in Mexico and Debby causing flooding throughout the Antilles. Tropical Storm Ernesto formed in the Main Development Region (MDR) and affected no landmasses, with Nine forming a week later in the Gulf of Mexico and making landfall on Sabine Pass. Hurricane Florence formed on September 10 and caused rip currents throughout the East Coast of the United States. Hurricane Gordon and Tropical Storm Helene formed on September 14 and 15 respectively, with both storms affecting the Gulf Coast and the East Coast. Hurricane Isaac was the second major hurricane of the season, peaking as a Category 4 hurricane and staying out to sea for most of its life. Hurricane Joyce peaked as a high-end Category 1 hurricane, with damage being limited to the Lesser Antilles. Hurricane Keith was the strongest storm of the season, forming on September 28. Keith rapidly intensified offshore of Belize, peaking as a Category 4 hurricane before weakening and making landfall. Keith caused $319 million in damage and caused 68 fatalities. Tropical Storm Leslie was a relatively weak and short-lived system, though its precursor caused $950 million in damages. Hurricane Michael formed on October 15 and transitioned to an extratropical cyclone just before making landfall in Newfoundland, causing moderate damage in the areas it affected. Tropical Storm Nadine formed days later, affecting no landmasses. The final system, an unnamed subtropical storm, formed on October 25 and affected New England and Atlantic Canada.
The season was not very destructive, causing a total of $1.296 billion in damage, most of which can be attributed to Hurricane Keith and Tropical Storm Leslie. Additionally, 105 people were killed, of which nearly two-thirds can be attributed to Hurricane Keith. The main reason for the lack of damage can be attributed to the lack of landfalling storms and the minimal impact from most of the storms that made landfall.
Eastern & Central Pacific Ocean
An average Pacific hurricane season features 15 tropical storms, 9 hurricanes, and 4 major hurricanes, and features an Accumulated Cyclone Energy (ACE) count of 132. In 2000, there were a below-average number of hurricanes and major hurricanes, though there was an above-average number of named storms. As a whole, the season was below-average, having a total of 95 ACE and featuring 19 tropical storms, 6 hurricanes, and 2 major hurricanes. A majority of the storms were weak and short-lived.
The first storm, Hurricane Aletta, formed on May 22 and peaked as a Category 2 hurricane. Tropical Storm Bud was a relatively weak tropical storm, affecting portions of Mexico. Hurricane Carlotta was the strongest storm of the month, peaking as a high-end Category 4 hurricane. Carlotta caused 18 fatalities after sinking a Lithuanian freighter. Following Carlotta, Four-E, Tropical Storm Upana, and Five-E formed in July, all 3 of which were weak and short-lived.
Systems January
10 storms formed in the month of January, of which 6 were named by their respective agencies. Babiola was the first storm of the season, intensifying into one of the 4 storms that attained hurricane-force winds. Iris was an unusually small tropical cyclone, weakening while passing through Vanuatu. Connie was the strongest storm of the month, becoming an intense tropical cyclone and causing 3 fatalities. + Tropical cyclones formed in January 2000 Storm name Dates active Max windkm/h (mph) Pressure(hPa) Areas affected Damage(USD) Deaths RefsBabiolaJanuary 3–12155 (100)950Île AmsterdamNoneNone06FJanuary 3–645 (30)1004NoneNoneNoneIrisJanuary 6–10150 (90)964Vanuatu, FijiNoneNone03January 12–26Not specifiedUnknownMadagascarUnknownUnknown07FJanuary 16–16Not specifiedNot specifiedNoneNoneNone08FJanuary 20–2675 (45)996NoneNoneNoneJoJanuary 23–27120 (75)972NoneNoneNoneKirrilyJanuary 24–February 2140 (85)975NoneNoneNoneConnieJanuary 25–February 1185 (115)930Mauritius, Réunion, Southern AfricaUnknown3DamienneJanuary 30–February 765 (40)994NoneNoneNone
February
February saw the formation of 10 systems, of which 7 were named. Leon–Eline, the first storm of the month, was the longest-lasting Indian Ocean tropical cyclone, causing significant damages in Madagascar and much of Southern Africa. Leon–Eline was tied for strongest storm of the month with Cyclone Norman. Gloria made landfall on Madagascar weeks after Leon–Eline made landfall, contributing to the early 2000 Madagascar floods. Steve traversed the northern and western coasts of Australia, making 4 landfalls in the process. + Tropical cyclones formed in February 2000 Storm name Dates active Max windkm/h (mph) Pressure(hPa) Areas affected Damage(USD) Deaths RefsLeon–ElineFebruary 1–29185 (115)930Mauritius, Réunion, Rodrigues, Madagascar, Mozambique, South Africa, Swaziland, Malawi, Botswana, Namibia>$309 million114-722TDFebruary 7–8Not specified1004Mariana IslandsNoneNoneMarciaFebruary 14–1865 (40)995NoneNoneNoneFeliciaFebruary 18–24110 (70)975NoneNoneNoneKimFebruary 23–29165 (105)935French PolynesiaMinimalNoneGloriaFebruary 27–March 1095 (60)985St. Brandon, Tromelin Island, Madagascar, MozambiqueUnknown66SteveFebruary 27–March 11110 (70)975North Queensland, Northern Territory, Western Australia$100 millionNone13FFebruary 28–2965 (40)994NoneNoneNoneNormanFebruary 29–March 9185 (115)930Western AustraliaNoneNone09February 29–March 11Not specifiedUnknownNoneNoneNone
March
+ Tropical cyclones formed in March 2000 Storm name Dates active Max windkm/h (mph) Pressure(hPa) Areas affected Damage(USD) Deaths Refs10March 1–3Not specifiedUnknownNoneNoneNoneLeoMarch 4–895 (60)985French PolynesiaMinimalNoneMonaMarch 6–11140 (85)960French PolynesiaMinimalNone16FMarch 9–12Not specifiedNot specifiedNoneNoneNone11March 10Not specifiedUnknownNoneNoneNoneOlgaMarch 15–2095 (60)985NoneNoneNoneHudahMarch 24–April 9220 (140)905St. Brandon, Tromelin Island, Rodrigues, Madagascar, MozambiqueUnknown114BOB 01March 27–3085 (50)998Andaman and Nicobar Islands, IndiaMinimalNoneVaughanMarch 28–April 7110 (70)985QueenslandNoneNone
April
10 systems formed in the month of April, of which 5 were named. The first storm of the month, Cyclone Tessi, made landfall on Australia as a Category 3 severe tropical cyclone on the Australian scale. Innocente was a long-lasting yet weak storm, with its remnants causing heavy rains on Mauritius. Cyclone Paul was the strongest storm of the month, peaking with a minimum central pressure of 915 hPa. Cyclone Rosita was a small yet powerful tropical cyclone, peaking with 10-min winds of and making landfall at peak intensity. + Tropical cyclones formed in April 2000 Storm name Dates active Max windkm/h (mph) Pressure(hPa) Areas affected Damage(USD) Deaths RefsTessiApril 1–3130 (80)980Queensland$50 millionNoneTDApril 5–6Not specifiedNot specifiedNoneNoneNone13April 7–1595 (60)992MozambiqueNoneNone18FApril 10Not specifiedNot specifiedNoneNoneNoneInnocenteApril 12–2470 (45)993MauritiusNoneNonePaulApril 11–20220 (140)915Cocos IslandsNoneNoneNeilApril 12–1775 (45)992FijiNoneNoneRositaApril 14–21205 (125)930Western AustraliaNoneNone20FApril 29–3075 (45)996QueenslandMinimalNone21FApril 30–May 175 (45)1000QueenslandMinimalNone
May
+ Tropical cyclones formed in May 2000 Storm name Dates active Max windkm/h (mph) Pressure(hPa) Areas affected Damage(USD) Deaths Refs22FMay 3–875 (45)1001NoneNoneNoneDamrey (Asiang)May 4–12165 (105)930Caroline IslandsNoneNone23FMay 6Not specifiedNot specifiedNoneNoneNoneLongwang (Biring)May 17–2085 (50)990Philippines, Ryukyu IslandsNoneNoneTDMay 17–18Not specified1000NoneNoneNoneAlettaMay 22–28165 (105)970Southwestern MexicoNoneNone03W (Konsing)May 20–2255 (35)1002Philippines, TaiwanNoneNone24FMay 20–2375 (45)1002NoneNoneNone04WMay 30–June 155 (35)1002VietnamNoneNone
June
June tied with November for least active month of 2000. 5 storms developed, of which 2 developed gale-force winds and were named by their respective agencies. Tropical Storm Bud was the first named storm, affecting Western Mexico. Hurricane Carlotta was the strongest storm of the month, becoming a high-end Category 4 hurricane. Carlotta caused the deaths of 18 people after sinking the M/V Linkuva. + Tropical cyclones formed in June 2000 Storm name Dates active Max windkm/h (mph) Pressure(hPa) Areas affected Damage(USD) Deaths RefsOneJune 7–845 (30)1008Mexico, TexasNoneNoneBudJune 13–1785 (50)994Revillagigedo Islands, Baja California PeninsulaMinimalNoneCarlottaJune 18–25250 (155)932MexicoMinimal18TDJune 1855 (35)1002South ChinaNoneNoneTwoJune 23–2555 (35)1008NoneNoneNone
July