North Indian cyclone season 2020

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North Indian cyclone season 2020
All the storms of the season
All the storms of the season
Formation of the
first storm
May 16, 2020
Dissolution of the
last storm
TBD
Strongest storm Amphan - 925  hPa  ( mbar ), 130  kn  (240  km / h )  (3 minutes)
Depression 3
Deep Depression 2
Cyclonic storms 2
Severe cyclonic storms 2
Very heavy cycl. Storms 1
Extremely heavy cycl. Storms 1
Super cyclonic storms 1
Total number of victims 2+
Total damage no
North Indian cyclone season
2018 , 2019 , 2020 , 2021 , 2022

The cyclone season in North India 2020 is an ongoing event in the annual cycle of tropical cyclones . The cyclone season in the North Indian has no official limits, but most storms usually form between March and December, with peaks between April and May and November.

The official Regional Specialized Meteorological Center in this basin is the India Meteorological Department (IMD), while the Joint Typhoon Warning Center publishes warnings aimed at US facilities in the region. This basin includes the sea area of ​​the Indian Ocean (also called Indic) north of the equator between the Horn of Africa in the west and the Malay Peninsula in the east. This area consists of two seas, the Arabian Sea west of the Indian subcontinent and the Bay of Bengal east of it, which the IMD abbreviates as ARB and BOB . The occasional, but not every year overland, tropical depressions are given a number with the prefix LAND .

On average, three to four storms form annually in the North Indian region.

Season overview

Systems

Super cyclonic storm Amphan

Super cyclonic storm ( IMD )
Category 5 cyclone
Amphan 2020-05-18 0745Z.jpg Amphan 2020 track.png
Duration May 16 -
intensity 130 kn (240 km / h ) (3 minutes) , 925 hPa

On May 15 at 00:00 UTC, a tropical depression formed in the southeastern Bay of Bengal . BOB 01 turned into a Deep Depression six hours later, and during the day IMD declared the system a cyclonic storm and named it Amphan . Sri Lanka had warned of landslides and floods for several areas of the country on the morning of May 16, and the IMD warned the Andaman and Nicobar Islands , Odisha and West Bengal of heavy rain. At least one person drowned in Sri Lanka. On May 17 at 09:00 UTC, Amphan had intensified into a very severe cyclonic storm. Within 12 hours, the storm formed an eye and rapidly intensified into an extremely severe cyclonic storm. (According to the JTWC, the cyclogenesis was explosive because Amphan had intensified from a cyclone equivalent to Category 1 to a cyclone equivalent to Category 4 on the Saffir-Simpson Hurricane Wind Scale within six hours .) May 18 at 10 : 30 o'clock UTC upgraded the IMD Amphan to a supercyclonic storm that reached three-minute continuous wind speeds of 240 km / h and in the center of which the air pressure fell to 925 hPa.

Storm damage in Kolkata

The Dum Dum weather station in Kolkata reported a gust of 130 km / h and 200 mm of precipitation on May 20, while 240 mm of precipitation fell in Alipore . Bangladesh reported 160 mm of rainfall in Ishwardi and 94 mm of rainfall in Netrokona . The strongest gust in Bangladesh reached 122 km / h and was measured in Patuakhali .

Depression ARB 01

Depression ( IMD )
ARB 01 2020-05-30 0947Z.jpg ARB01 2020 track.png
Duration May 29th - May 31st
intensity 25 kn (45 km / h ) (3 minutes) , 1000 hPa

Near Salalah , Oman depression formed on 29 May.

The Public Authority for Civil Aviation (PACA) advised Oman residents to exercise caution and stay away from low-lying areas and the sea. The population was asked to stay at home except in emergencies. The Sadah hospital was evacuated before the storm approached. On May 29th, over 200 mm of rain fell in Dhofar Governorate ; which in the affected areas sometimes exceeds twice the annual amount of precipitation. The highest amount of precipitation was measured in Mirbat with 1055 mm. In Salalah, 260 mm of precipitation caused flooding over two days. Operations in the port of Salalah were interrupted due to the tropical depression. There were interruptions in the supply of electricity and running water. Military police were deployed to clear the streets and use helicopters to bring stranded people to safety. Two people drowned in flash floods in a wadi , one person and three others were injured when a house collapsed.

Severe cyclonic storm Nisarga

Severe cyclonic storm ( IMD )
Category 1 cyclone
Nisarga 2020-06-03 0800Z.jpg Nisarga 2020 track.png
Duration June 1st - June 4th
intensity 60 kn (110 km / h ) (3 minutes) , 984 hPa

On May 31, a low pressure area developed over the southeastern Arabian Sea. It intensified throughout the day and developed into a tropical depression about 340 km southwest of Goa and 630 km southwest of Mumbai early on June 1. On June 2, around noon, the system intensified into a cyclonic storm and was named Nisarga . Before landfall near the coastal town of Alibag in Maharashtra, Nisarga intensified into a severe cyclonic storm at around 12:30 pm ( IST ) on June 3 , before the system weakened into a deep depression on June 4.

Storm names

Inside the basin, a cyclonic storm is assigned a name by the IMD as soon as the sustained three-minute wind speed exceeds 65 km / h. These names were first compiled by the ESCAP / WMO Panel on Tropical Cyclones between 2000 and 2004, before the Regional Specialized Meteorological Center in New Delhi began naming them in September 2004. In contrast to the lists of names in other cyclone formation areas of the world, there is no deletion of names of particularly serious storm events from this list, since the names are only used once and a new one is created when the list is used up. This is now the case. For the next eight names on the list below, Amphan is the last name on the list drawn up in 2004, while Nisarga is the first name in the new list of names published in 2020. Should a named tropical cyclone migrate from the Pacific Basin to the northern Indian Ocean, it will keep its original name.

  • Amphan ( BOB 01 )
  • Nisarga ( ARB 02 )
  • Gati  (unused)
  • Nivar  (unused)
  • Burevi  (unused)
  • Tauktae  (unused)
  • Yaas  (unused)
  • Gulab  (unused)

See also

supporting documents

  1. 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 ( English , PDF) India Meteorological Department. Retrieved May 14, 2020.
  2. RSMC TROPICAL CYCLONE ADVISORY BULLETIN ( English ) Regional Specialized Metrological Center. May 17, 2020. Accessed May 17, 2020.
  3. Cyclone Amphan warning issued in India and Sri Lanka ( English ) May 17, 2020. Retrieved May 17, 2020: "One person has died and a woman has gone missing as rains lash Sri Lanka"
  4. gleaning Amphan . In: Topic of the day . May 22, 2020. Accessed May 22, 2020.
  5. https://www.tagesschau.de/ausland/zyklon-lösungen-bangladesch-103.html Document for Kolkata, May 20, 2020.
  6. Low pressure system 200km away from Oman coast (English) . In: Times of Oman , Muscat Media Group, May 28, 2020. Retrieved July 11, 2020. 
  7. Sadah Hospital evacuated as center of tropical depression moves towards Dhofar (English) . In: Times of Oman , Muscat Media Group, May 29, 2020. Retrieved July 11, 2020. 
  8. Heavy rains, strong winds may continue in Dhofar until tomorrow: PACA official . In: Times of Oman , Muscat Media Group, May 29, 2020. Retrieved July 11, 2020. 
  9. a b Three people die due to heavy rains in Oman (English) . In: Gulf News , Gulfnews.com, May 30, 2020. Retrieved May 31, 2020. 
  10. Rainfall amounts in Oman exceed 2018 cyclone Mekunu (English) . In: Times of Oman , Muscat Media Group, June 2, 2020. Retrieved July 11, 2020. 
  11. Two days of rain have revived the roar of waterfalls in Salalah (English) . In: Al Jazeera , Al Jazeera Media Network, May 30, 2020. Retrieved July 11, 2020. 
  12. Operations at Salalah port suspended (English) . In: Times of Oman , Muscat Media Group, May 30, 2020. Retrieved July 11, 2020. 
  13. Oman floods leave one dead in southern city of Salalah (English) . In: The National , The National, May 30, 2020. Retrieved July 11, 2020. 
  14. Two dead as Dhofar witnesses heavy rain and flooding (English) . In: Times of Oman , Muscat Media Group, May 30, 2020. Retrieved July 11, 2020. 
  15. Highlights: Cyclone Weakened, May Enter Madhya Pradesh From Its Southern Parts, Says Weather Department ( English ) June 4, 2020. Accessed July 15, 2020.

Web links

Commons : Cyclone season in the North Indic 2020, Amphan  - collection of pictures, videos and audio files