Damien became the first and strongest storm of the month, impacting the Pilbara Region of Western Australia as a Category 2 tropical cyclone on the Saffir-Simpson scale. Following the same day, 03F intensified into Category 1 tropical cyclone Zazu, strengthening to Category 2. Despite that, Gretel and Herold formed, with the latter becoming the first major tropical cyclone of 2020. The North Indian Ocean cyclone season has no official bounds, but cyclones tend to form between April and November, with peaks in late April to May and October to November. Adding on, Tino brought considerable damage throughout the South Pacific in the middle portion of the month, and a rare South Atlantic tropical cyclone formed, named Kurumí, becoming the first of its kind to be named in January later on in the month. Amphan is the last name from the original naming list published in 2004, while Nisarga is the first name from the new naming list published in 2020. The deadly storm slammed ashore near the border of eastern India and Bangladesh, delivering substantial storm surge to coastal areas. Tonga's Tropical Cyclone Season for 2020-21 has officially started in November and runs through until April 2021. [36] At 18:00 UTC, the IMD classified the system as Depression ARB 04 about 410 km (255 mi) east-southeast of Socotra. During most of the year, sea surface temperatures were moderately below normal near the equator, and were highest around 160° E from August to October. The season has produced three depressions, three storms, two cyclone and one intense cyclone so far. Along with the system another low formed off the coast of Kimberley Region. November was moderately active with twelve tropical cyclones forming, of which eleven were named. It later intensified into a deep depression and then into a cylonic storm, named Cyclone Burevi. It made landfall in Andhra Pradesh and caused extensive damage. The month of April was fairly inactive with only five storms developing and three being named, however the month featured Harold responsible for devastating damage in Vanuatu and the first category 5-equivalent storm of 2020, as well as the first to be featured in the South Pacific since Gita in 2018. The system crossed West Bengal's North 24 Parganas and South 24 Parganas and moved over the adjoining Bangladeshi coast on the noon of October 23 with the maximum wind speed of 45 km/h (30 mph). After 2 days, BOB 03 formed, impacting and affecting West Bengal, Bangladesh and the Northeast India. [2][3] That morning, landslide and flooding warnings were hoisted for parts of eastern Sri Lanka and the Indian state of Kerala were given expectations of torrential rainfall in the coming days. [52] At 15:00 UTC, both the IMD and JTWC upgraded it to a cyclonic storm and tropical storm respectively and it was named Burevi, the fifth named storm of the season. Of these, 100, including two subtropical cyclones in the South Atlantic Ocean and three tropical-like cyclone in the Mediterranean Sea, have been named by various weather agencies when they attained maximum sustained winds of 35 knots (65 km/h; 40 mph). These dates conventionally delimit the period of each year when most tropical cyclones form in the northern Indian Ocean. The Eastern Pacific was very quiet, only featuring Norbert while the Western Pacific was active featuring numerous tropical systems which also led to severe floods in Vietnam, including Saudel, Molave, and Goni. [5] The hospital in Sadah was evacuated as the depression intensified. The catastrophic season ended on November 18, after Hurricane Iota dissipated. Tropical Cyclone Yasa struck one of Fiji's main islands as a Category 4 or 5 storm, making it one of the strongest storms on record to hit the nation. Department of Fire and Emergency Services commissioner Darren Klemm (left), with Emergency Services Minister Fran Logan and WA … Nisarga intensified into a severe cyclonic storm before making landfall near the coastal town of Alibag in Maharashtra at 12:30 (IST) on June 3. Featuring only seventeen tropical storms (sixteen received names), four hurricanes, and three major hurricanes, the 2020 Pacific hurricane season was the least active season in exactly a decade. The Tropical Cyclone (TC) activity expected in the 2020/21 Tropical Cyclone Season to affect Tonga is likely to be around average (1 to 2 cyclones on average). In 2020 in the Eastern and Central Pacific basins, most of the statistics fell below the above list. In February, Moderate Tropical Storm Francisco formed, and was deemed very weak. Another depression formed in the West Pacific in the middle of the month and eventually strengthened into Tropical Storm Krovanh over the South China Sea. It persisted for two weeks and reached category 3 on the Australian tropical cyclone scale before dissipating west of Australia. The ENSO Blog estimated a 75% chance that La Niña conditions would persist through the end of the year, in part due to a strengthening Walker circulation.[4]. It rapidly weakened and dissipated the next day. The North Indian Ocean cyclone season has no official bounds, but cyclones tend to form between April and November, with peaks in late April to May and October to November. 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. An average to slightly-above-average number of tropical cyclones are expected for the 2020–21 Australian tropical cyclone season (November–April). Iota was also the most intense hurricane of the season with a minimum central pressure of 917 mbar. It exited the basin on November 30 and entered the South West Indian Ocean where it intensified into a severe tropical storm and it was named Bongoyo. On November 14 another tropical disturbance formed off the coast of Madagascar, however on November 16 the system failed to organise due to unfavorable vertical wind shear according to JTWC. Nuri formed on the eastern coast of the Philippines, becoming the second storm of the typhoon season in the West Pacific but quickly weakened before landfall. The scope of the season is limited to the Indian Ocean in the Northern Hemisphere, east of the Horn of Africa and west of the Malay Peninsula. Iota eventually became the strongest storm of the month and only the second Category 5 hurricane ever recorded in the North Atlantic in November, continuing a spree of damage in Central America following Eta. On average, there are 9 to 11 tropical cyclones each season in the Australian region, four of which typically cross the coast. The third one intensified into Cyclone Damien. As 2020 began, sea surface temperatures were above normal in the eastern Pacific Ocean near the equator, which had the potential to develop into El Niño conditions. Moving westwards, the system dissipated into a well marked low pressure on the morning of October 19 over the West Central Arabian Sea due to unfavorable atmospheric conditions. June was slightly inactive with just six tropical cyclones forming and five of them being named. The Supreme Committee asked people to remain at home in non-emergency circumstances. At the same time, Claudia, another tropical cyclone, formed. Afterwards, October featured little relief with 3 hurricanes and 4 named storms forming all and all. These are the United States National Hurricane Center (NHC) and Central Pacific Hurricane Center, the Japan Meteorological Agency (JMA), the Indian Meteorological Department (IMD), Météo-France (MFR), Indonesia's Badan Meteorologi, Klimatologi, dan Geofisika, the Australian Bureau of Meteorology (BOM), Papua New Guinea's National Weather Service, the Fiji Meteorological Service (FMS) as well as New Zealand's MetService. Then, on October 11, after the inactivity gap came to a close, Deep Depression BOB 02 formed. Following the same day, another disturbance formed and intensified into a depression in the next day. There are two main seas in the North Indian Ocean – the Arabian Sea to the west of the Indian subcontinent, abbreviated ARB by the India Meteorological Department (IMD); and the Bay of Bengal to the east, abbreviated BOB by the IMD. 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