*Spanish translations, when available, are courtesy of the NWS San Juan Weather Forecast Office. The first tropical cyclone of the season developed a day before the season officially began on October 30, while the last tropical cyclone of the season dissipated on May 16. Cite error: The named reference "TDS Dec 11 00z" was defined multiple times with different content (see the, 2020–21 South-West Indian Ocean cyclone season, Australian Tropical Cyclone Intensity Scale, National Institute of Water and Atmospheric Research, a brief interaction with Tropical Depression 01F, List of Southern Hemisphere cyclone seasons, Tropical Cyclone Guidance for Season 2010/11 for the Fiji and the Southwest Pacific, 2020/21 RSMC Nadi Tropical Cyclone Outlook, Southwest Pacific Tropical Cyclone Outlook - October 2020, "South Pacific Tropical Cyclone Outlook for 2020 to 2021", Tropical Disturbance Summary December 8, 2020 09z, Significant Tropical Weather Advisory December 8, 2020 11z, Tropical Disturbance Summary December 11, 2020 09z, "Tropical Depression 01F Disturbance Advisory #4 (00Z)", "Final Warning, Remnant of Tropical Cyclone 04P", "Tropical Cyclone Yasa 1st of the season for South Pacific", "Tropical Cyclone Formation Alert (TD 02F) (0330Z)", "Tropical Depression 02F Disturbance Advisory #1 (00Z)", "Tropical Cyclone Formation Alert (Invest 91P)", "Tropical Cyclone 05P (Five) Warning #01", "Tropical Cyclone Yasa Disturbance Advisory 5 (13Z)", "TROPICAL CYCLONE 05P (YASA) WARNING NR 012", "Severe Tropical Cyclone Yasa Disturbance Advisoru Number 8 (00Z)", "Tropical Cyclone 05P (Yasa) Warning #14", "Tropical Cyclone Yasa Disturbance Advisory #15 (18Z)", "Tropical Cyclone Zazu, Storm Warning 054 (00Z)", Tropical Cyclone Potential Bulletin December 16, 2020 23z, "Category 2 Cyclone Zazu Update: Yellow Alert for Niue", "Niue's only wharf slammed by massive waves whipped up by Cyclone Zazu", "Tonga hit by Cyclone Zazu as second system strengthens", Tropical Cyclone Operational Plan for the South-East Indian Ocean and the Southern Pacific Ocean 2020, "Fiji reports 4 deaths due to tropical cyclone Yasa", https://en.wikipedia.org/w/index.php?title=2020–21_South_Pacific_cyclone_season&oldid=995941462, Southern Hemisphere tropical cyclone seasons, Creative Commons Attribution-ShareAlike License, Category 5 severe tropical cyclone (Australian scale), Category 2 tropical cyclone (Australian scale), This page was last edited on 23 December 2020, at 18:14. [13][14] The remnants of Prema were subsequently monitored over the next few days, as they moved towards and through French Polynesia, before they were last noted during March 6. Please sign your comments using four tildes (~~~~). [14] Prema brought strong to gale-force winds and high seas to the Northern Cook Islands of Penrhyn, Manihiki, Rakahanga and Pukapula. [2], After the season had officially ended during April 30, meteorologists at the University of Hawaii identified that two tropical depressions developed on May 11 and May 16. [17] The JTWC subsequently initiated advisories on the system and designated it as Tropical Cyclone 18P. [5] The disturbance was subsequently named Joti at 00:00 UTC on November 1, by the FMS as it had developed into a tropical cyclone. The Central Pacific, meanwhile, had its most active year on record, with 16 tropical cyclones forming in or entering the basin, easily surpassing the old record of 11 set in 1992 and 1994. The most active time of year is ahead. There are no tropical cyclones in the Atlantic at this time. During the season, tropical cyclones will be officially monitored by the Fiji Meteorological Service (FMS), Australian Bureau of Meteorology (BoM), New Zealand's MetService. [11] It reached at the maximum 10 minutes sustained wind speed of 55 km/h (35 mph) and minimum pressure of 1000 mb (29.53 inHg). [18][19] Some minor damage to vegetation was reported in Niue, as a result of Tomasi.[18]. During December 11, the FMS reported that Tropical Disturbance 03F had developed about 480 km (300 mi) to the northeast of the island nation of Niue. During the season tropical cyclones were monitored by the meteorological services of Australia, Fiji, French Polynesia and New Zealand. [18][19] Over the next couple of days, the system moved south-westwards and passed about 140 km (85 mi) to the southeast of Penhryn, as it gradually developed into a tropical cyclone. RSMC Nadi attaches a number and an F suffix to tropical disturbances that form in or move into the basin while the JTWC designates significant tropical cyclones with a number and a P suffix. Place comments that start a new topic at the bottom of the page and give them a descriptive header. [30] Zazu also brought wind gusts up to 120 km/h (75 mph) to the island nation of Tonga, but no significant damage was reported. Includes the waters of: the North Atlantic Ocean, the Gulf of Mexico, … [3] In April 2015, a cyclone was suspected to have become subtropical near 102.9°W, and was unofficially named "Katie" by researchers. The United States Armed Forces through the Joint Typhoon Warning Center (JTWC) and Naval Pacific Meteorology and Oceanography Center (NPMOC), al… ... Pacific Islands; ... 2020 is now the most active hurricane season on record CNN. The Atlantic hurricane season runs from June 1st through November 30th. During February 25, a depression developed within a trough of low pressure, to the south-west of Manihiki in the Northern Cook Islands. The Eastern Pacific hurricane season experienced an above average number of tropical storm intensity systems, numbering 15. Oscar existed from February 23 to March 6. Just about 12 hours later on December 14, Yasa rapidly intensified to Category 4 status on the Australian scale as a defined eye began to clear on infrared satellite imagery. [13] Gale-force winds caused some serious damage to a wharf, on the atoll of Penhryn. U.S. citizens living in or traveling to the region should monitor local weather reports and take other appropriate action as needed. With tropical depressions intensifying into a tropical cyclone between the Equator and 25°S and between 160°E - 120°W named by the FMS. It had no official bounds; it ran year-round in 1964, but most tropical cyclones tend to form in the northwestern Pacific Ocean between June and December. The BoM also predicted that the Eastern Region between 165°E and 120°W, had a 45% chance of seeing activity above its average of 6 tropical cyclones. Yasa formed on December 11 and became a Category 5 cyclone, impacting Fiji. Extremely Active Atlantic Hurricane Season. Most modeling suggests that the Pacific will gradually warm through this preparation season and into the first half of hurricane season. The 2006–07 South Pacific cyclone season was an event in the annual cycle of tropical cyclone formation. [5][6], During November 3, the FMS reported that Joti had peaked with 10-minute sustained winds of 110 km/h (70 mph), which made it a Category 2 tropical cyclone on the Australian scale. The storm continued to intensify and soon became a Category 3 on the Australian scale. Plus, big heat for the East and winter weather out West. [5][6] After the system had moved into the Coral Sea, it gradually weakened and turned towards the south-southwest, before it degenerated into a depression during November 7. This is the forum page for the 2020-21 South Pacific cyclone season. Please keep off-topic and political discussion to a minimum, and respect the guidelines listed to the right. [13][14] After it had been named: Prema moved south-eastwards and started to gradually weaken, before it degenerated into a depression during February 27. The Atlantic hurricane season runs from June 1st to November 30th, and the Eastern Pacific hurricane season runs from May 15th to November 30th. [29] Zazu brought heavy surf which severely damaged the wharf on Niue which was recently rebuilt while bringing rainy conditions to the island that same day. 1982–83 South-West Indian Ocean cyclone season, List of off-season South Pacific tropical cyclones, http://dailypost.vu/news/developing-el-nino-predicted-stronger-than---dubbed-godzilla/article_fe5cafeb-3ac9-5da5-b17d-9c3f29359515.html, Tropical cyclones in Vanuatu: 1847 to 1994, "1983 Tropical Cyclone TOMASI (1983086S08204)", https://en.wikipedia.org/w/index.php?title=1982–83_South_Pacific_cyclone_season&oldid=979572574, Articles which contain graphical timelines, Creative Commons Attribution-ShareAlike License, Category 2 tropical cyclone (Australian scale), Category 1 tropical cyclone (Australian scale), Category 3 severe tropical cyclone (Australian scale), Category 4 severe tropical cyclone (Australian scale), This page was last edited on 21 September 2020, at 14:05. William was one of the most northeasterly forming cyclones in the basin's history. Get the latest. (A tutorial on El Niño and La Niña can be found at the NOAA Climate Prediction Center website.) [17][18] At 15:00 UTC December 12, the JTWC determined the system had strengthened into Tropical Cyclone 05P and was now producing winds up to gale force, while it absorbed the remnant of Tropical Depression 01F. [11] Over the next couple of days, the system gradually developed further before the FMS reported that the system had developed into a tropical cyclone and named it Lisa during December 12. 01F became a remnant low and got absorbed by Tropical Depression 02F. [8] The degenerating system subsequently passed to the west of Fiji during November 13, before it was last noted during November 16, as it passed over the island of Efate in Vanuatu but no damage was reported. Should a tropical cyclone move out of the basin and into the Australian region it will retain its original name. Tropical cyclones affect Pacific island countries in most years and can impact coastal regions even when they remain well offshore. Yasa continued its weakening trend as it turned southward, dropping to Category 1 tropical cyclone status late on December 18. It hampered the system intensification due to a brief interaction with Tropical Depression 01F. [19] Later that day, the FMS reported that Tomasi had peaked as a Category 4 severe tropical cyclone, with 10-minute sustained winds of 185 km/h (115 mph). [7] Deep convection near the system was initially only fragmented; however, environmental conditions were assessed as being conducive for development, with low vertical wind shear, good upper-level outflow and sea surface temperatures near 29 °C (84 °F). The Western Pacific Basin has been eerily quiet so far in 2019, with roughly half the tropical cyclone activity of an average year through July. Another disturbance formed near the existing 01F and rapidly intensified into a depression. This expectation for tropical cyclone activity is close to normal for the region, but with elevated activity east of the International Date Line especially during the late season between February and April. [19] About a day later, on December 13, the FMS determined that the depression had further strengthened to Category 1 status, as convection continued wrapping into the center, with the storm acquiring the name Yasa. The National Oceanic and Atmospheric Administration (NOAA) predicted a more active Atlantic hurricane season than normal for 2020, and [5] At this stage, the system had a broad low level circulation and was located within a marginal environment for further development, with warm sea surface temperatures as well as moderate levels of vertical wind shear. The United States Armed Forces through the Joint Typhoon Warning Center (JTWC) will also monitor the basin and issue unofficial warnings for American interests. [12] The storm then weakened and degenerated into a low pressure system later on December 12. [20] Soon afterwards, the JTWC upgraded Yasa to a Category 1-equivalent cyclone on the Saffir–Simpson scale.[21]. The 1982–83 South Pacific cyclone season was one of the most active and longest South Pacific tropical cyclone seasons on record, with 16 tropical cyclones occurring within the South Pacific basin between 160°E and 120°W. [12] During that day the system sharply turned south-eastwards and started to gradually weaken, before it was last noted during February 28, as it moved out of the FMS's area of responsibility, while equivalent to a modern-day category 1 tropical cyclone. NIWA and MetService analyses indicate 9 to 12 named tropical cyclones (TC) could occur in the Southwest Pacific basin between November 2019 and April 2020. [24] By 00:00 UTC on December 16, Yasa had intensified into a Category 5-equivalent tropical cyclone on the SSHWS, with 1-minute sustained winds of 260 km/h (160 mph). There are no tropical cyclones in the Atlantic at this time. [4], The system that was to become Tropical Cyclone Joti was first noted by the Central Pacific Hurricane Center (CPHC) during October 30, while it was located about 1,000 km (620 mi) to the north-east of Port Villa in Vanuatu. However, if a tropical depression intensify to the south of 25°S between 160°E and 120°W it will be named by MetService in conjunction with the FMS. [2] At least one of these tropical cyclones was expected to intensify further and become a Category 3 or higher severe tropical cyclone.[2]. [22] The storm continued rapidly intensifying and strengthened to a Category 5 tropical cyclone on the Australian scale, the highest rating possible, whilst completing its loop, with a central pressure of 929 mbar and wind speeds of 110 knots (125 mph). On December 8, a disturbance formed near Fiji, starting the 2020–21 South Pacific Ocean cyclone season, it gradually intensified into a depression and attained a tropical storm status according to JTWC. [12] Over the next day, the system started to move south-westwards, while it rapidly intensified, with the FMS estimating 10-minute sustained wind-speeds of 185 km/h (115 mph) during February 24. a La Nina pattern along the equator off the Pacific coast of South America; The closest season in comparison is 2005, which churned up 28 named storms, the … The Atlantic Hurricane Basin. During March 7, a tropical depression developed about 650 km (405 mi) to the northeast of the Society Islands. The South Pacific tropical cyclone season is typically from 1 November to 30 April. [18] After the system was named, Tomasi went through a period of rapid intensification, with an eye appearing on visible satellite imagery during that day. Because of the Fujiwhara effect, the remnant was absorbed by Tropical Depression 02F shortly afterward, which would later become Severe Tropical Cyclone Yasa. [1], During the season, ten of the fourteen tropical cyclones observed to the east of 160 E were severe tropical cyclones, with 5 of them occurring in the French Polynesia region which represented one more than was experienced in the same area over the previous 13 seasons. These conditions produce an anomalous upper-level, ridge-trough pattern in the subtropics, with an amplified ridge over the subtropical Pacific in the ar… [5][6] The JTWC subsequently reported that the system had peaked with 1-minute sustained winds of 120 km/h (75 mph), which made it equivalent to a Category 1 hurricane on the SSHWS. During the season, tropical cyclones will be officially monitored by the Fiji Meteorological Service (FMS), Australian Bureau o… [4] Within their outlook the FMS predicted that between four and six tropical cyclones would occur within the basin compared to an average of around 7. [13] Heavy rain and gale-force winds off 100 km/h (60 mph), caused minor damage to French Polynesia's Leeward and Society Islands.[15][16]. Keep betting pools off this page - there are separate forum pages for those. [14], Tropical Disturbance 02F was first noted by the FMS during December 11, while it was located about 800 km (495 mi) to the northeast of Port Villa in Vanuatu. [18] Tomasi remnants moved towards the south-southeast, before it was last noted during April 5. The Tropical Cyclone Formation Probability Product provides an estimate of the probability of tropical cyclone formation within the next 24 hours in 1 by 1 degree latitude/longitude areas … The 2020–21 South Pacific cyclone season is a currently ongoing period of the year when most tropical cyclones form within the South Pacific Ocean to the east of 160°E. The season officially started on November 1, 2020 and will end on April 30, 2021, however a tropical cyclone could form at any time between July 1, 2020 and June 30, 2021 and would count towards the season total. During March 27, the FMS started to monitor a depression that had developed, within a trough of low pressure about 235 km (145 mi) to the northeast of Penrhyn in the Northern Cook Islands. 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