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2020 North Indian Ocean cyclone season
Template:Infobox hurricane season The 2020 North Indian Ocean cyclone season is an ongoing event in the annual cycle of tropical cyclone formation. The North Indian Ocean cyclone season has no official bounds, but cyclones tend to form between March and December, with peaks in April and November. These dates conventionally delimit the period of each year when most tropical cyclones form in the northern Indian Ocean.
The scope of this article is limited to the Indian Ocean in the Northern Hemisphere, east of the Horn of Africa and west of the Malay Peninsula. 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.
The official Regional Specialized Meteorological Centre in this basin is the India Meteorological Department (IMD), while the Joint Typhoon Warning Center releases unofficial advisories. On average, three to four cyclonic storms form in this basin every season.[1]
Season summary[edit source | edit]
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barset:Hurricane width:10 align:left fontsize:S shift:(4,-4) anchor:till from:16/05/2020 till:21/05/2020 color:SU text:"Amphan" bar:Month width:5 align:center fontsize:S shift:(0,-20) anchor:middle color:canvas from:01/05/2020 till:31/05/2020 text:May from:01/06/2020 till:30/06/2020 text:June from:01/07/2020 till:31/07/2020 text:July from:01/08/2020 till:31/08/2020 text:August</timeline>
Systems[edit source | edit]
Super Cyclonic Storm Amphan[edit source | edit]
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As of: | 00:00 UTC, 20 May | ||
Location: | 24°42′N 89°30′E / 24.7°N 89.5°E About 35 km (22 mi) NE of Sagar Island About 70 km (43 mi) S of Kolkata About 95 km (59 mi) ENE of Digha About 185 km (115 mi) WSW of Khepupara | ||
Sustained winds: | 35 knots (65 km/h; 40 mph) (3-min mean) 40 knots (75 km/h; 45 mph) (1-min mean) gusting to 45 knots (85 km/h; 50 mph) | ||
Pressure: | 990 hPa (29.23 inHg) | ||
Movement: | NNE at 15 kn (28 km/h; 17 mph) | ||
At 00:00 UTC on May 16, a depression formed in the southeast Bay of Bengal and was identified as BOB 01. Six hours later, the Indian Meteorological Department (IMD) upgraded the system to a deep depression. The system began bringing torrential rainfall to Sri Lanka and Southern India. Around 15:00 UTC, the system further developed into Cyclonic Storm Amphan.[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.[4] By 09:00 UTC of May 17, Amphan had intensified into a very severe cyclonic storm. Within 12 hours, the storm had developed an eye and started to rapidly intensify, becoming an extremely severe cyclonic storm. According to the JTWC, it explosively intensified from a Category 1-equivalent cyclone to a Category 4-equivalent cyclone in just 6 hours. The following morning around 10:30 UTC, the IMD upgraded Amphan to a super cyclonic storm with 3-minute sustained winds of 240 km/h (150 mph) and a minimum pressure of 925 hPa (27.46 inHg). This marked the second year in a row featuring a super cyclonic storm, the previous year seeing Kyarr in the Arabian Sea.
Storm names[edit source | edit]
Within this basin, a tropical cyclone is assigned a name when it is judged to have reached cyclonic storm intensity with winds of 65 km/h (40 mph). The names were selected by members of the ESCAP/WMO panel on Tropical Cyclones between 2000 and May 2004, before the Regional Specialized Meteorological Center in New Delhi started to assign names in September 2004. There is no retirement of tropical cyclone names in this basin as the list of names is only scheduled to be used once before a new list of names is drawn up. Should a named tropical cyclone move into the basin from the Western Pacific, then it will retain its original name. The next eight names from the list of North Indian Ocean storm names are listed below. 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.
Season effects[edit source | edit]
This is a table of all storms in the 2020 North Indian Ocean cyclone season. It mentions all of the season's storms and their names, duration, peak intensities (according to the IMD storm scale), damage, and death totals. Damage and death totals include the damage and deaths caused when that storm was a precursor wave or extratropical low, and all of the damage figures are in 2020 USD.
Template:North Indian Ocean areas affected (Top) |- | Amphan || May 16 – present || bgcolor=#ff6060|Super cyclonic storm || bgcolor=#ff6060|240 km/h (150 mph) || bgcolor=#ff6060|925 hPa (27.32 inHg) || Sri Lanka, India, Bangladesh ||
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None || 20 || [5]
|- Template:TC Areas affected (Bottom)
See also[edit source | edit]
- Tropical cyclones in 2020
- North Indian Ocean cyclone season
- 2020 Atlantic hurricane season
- 2020 Pacific hurricane season
- 2020 Pacific typhoon season
- South-West Indian Ocean cyclone seasons: 2019–20, 2020–21
- Australian region cyclone seasons: 2019–20, 2020–21
- South Pacific cyclone seasons: 2019–20, 2020–21
References[edit source | edit]
- ↑ "Annual Frequency of Cyclonic Disturbances (Maximum Wind Speed of 17 Knots or More), Cyclones (34 Knots or More) and Severe Cyclones (48 Knots or More) Over the Bay of Bengal (BOB), Arabian Sea (AS) and Land Surface of India" (PDF). India Meteorological Department. Retrieved 30 October 2015.
- ↑ "RSMC TROPICAL CYCLONE ADVISORY BULLETIN" (PDF). Regional Specialised Metrological Center. Retrieved 17 May 2020.
- ↑ "Cyclone Amphan Live Update: SuCS Moving Away From Odisha Coast". Odisha Television. Retrieved May 20, 2020.
- ↑ "Cyclone Amphan warning issued in India and Sri Lanka One person has died and a woman has gone missing as rains lash Sri Lanka". Retrieved 17 May 2020.
- ↑ "Adverse weather claims two lives". Sunday Observer. 17 May 2020. Retrieved 17 May 2020.
External links[edit source | edit]
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Wikimedia Commons has media related to 2020 North Indian Ocean cyclone season. |
- India Meteorological Department
- Joint Typhoon Warning Center
- National Meteorological Center of CMA (in Chinese)
Template:TC Decades Template:Tropical cyclone season
Visibility[edit source | edit]
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