Australian cyclone season 2019-2020

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Australian cyclone season 2019-2020
All the storms of the season
All the storms of the season
Formation of the
first storm
4th January 2020
Dissolution of the
last storm
May 10, 2020
Strongest storm Damien - 955  hPa  ( mbar ), 80  kn  (150  km / h )  (10 minutes)
Tropical lows 17th
Tropical cyclones 7th
Heavy tropical cyclones 3
Total number of victims 28
Total damage None
Australian cyclone seasons
2017–18 , 2018–19 , 2019–20 , 2020–21 , 2021–22

The 2019-2020 Australian cyclone season was a fairly below average cyclonic season in the waters between 90 ° and 160 ° east longitude that surround Australia . Although the season officially started on November 1, 2019 and ended on April 30, 2020, tropical cyclones can form in this area at any time, so this season includes all systems that develop between July 1, 2019 and June 30 2020 form. With the emergence of the first system on January 4th, this season is the one with the second start at the latest, its beginning of reliable observations after the 1986-87 season . With a total of seven cyclones, this cyclone season is the least active since 2016-17 . Three of these systems have intensified into severe tropical cyclones, and three cyclones have reached the mainland at least as cyclone strength. The total death toll from the effects of all storms is 28; it also takes into account indirect fatalities. Cyclone Damien was the strongest tropical cyclone to hit the Pilbara region in Western Australia since Cyclone Christine in late 2013 .

During the season, tropical cyclones are officially monitored by the Australian Bureau of Meteorology (BOM), the Indonesian Meteorology, Climatology, and Geophysical Agency (BMKG) and the National Meteorological Service of Papua New Guinea . The United States' Joint Typhoon Warning Center (JTWC) issues warnings aimed at American facilities and ships in the area.

Season forecasts

record tropical
cyclones
severe
tropical cyclones
receipt
high: 21st 12
low: 3 0
Average (1969–70 to 2018–19): 9-13  -
NIWA October (135 ° E - 120 ° W) 9-12 4th
region cut Chance
for more
Chance
for less
Actual
activity
Total region
(90 ° E to 160 ° E)
11 35% 65% 7th
Western region
(90 ° E to 125 ° E)
7th 43% 57% 4th
Northwest Sub-region
(105 ° E to 130 ° E)
5 39% 61% 4th
Northern Region
(125 ° E to 142.5 ° E)
3 36% 64% 2
eastern region (142.5 ° E to 160 ° E
)
4th 43% 57% 2
Western South Pacific
(142.5 ° E to 165 ° E)
4th 54% 46% 0
Eastern South Pacific
(165 ° E to 120 ° W)
7th 41% 59% 0
Source: BOM's Season Outlooks for Tropical Cyclones

Ahead of the official start of the cyclone season on November 1st, the BoM, Fiji Meteorological Service, New Zealand's MetService, and the National Institute of Water and Atmospheric Research (NIWA), as well as several other national weather services in the Pacific, worked together to achieve a joint effort during October 2019 To publish a forecast of the season for the islands in the South Pacific. This forecast predicted an almost average number of tropical cyclones for the 2019-20 cyclone season. Accordingly, nine to twelve tropical cyclones should develop between 135 ° east and 120 ° west longitude, compared to the average value just over 10. At least four of them were expected to intensify into a severe tropical cyclone, in one case up to category 5 of the Australian cyclone scale.

Season overview

Zyklon Harold

The season got off to an unusually late start because the first system of the season, Cyclone Blake, didn't form until early January 2020. Blake eventually hit the mainland in northwest Australia and disintegrated shortly afterwards. At this point, Cyclone Claudia was forming elsewhere, which existed for two weeks and reached Category 3 on the Australian cyclone scale before disintegrating west of Australia. In the last ten days of January a tropical low occurred, which however dissolved after a week without having reached storm strength. At the end of the month and beginning of February, three more tropical lows emerged, one of which resolved with no development. A second moved in and out of the Australian region and was eventually classified as 06F by the Fiji Meteorological Service . The third low intensified into Cyclone Damien. At the end of February, two more tropical lows developed to the cyclones Esther and Ferdinand. Esther did not improve significantly, but Ferdinand achieved category 3 on the Australian scale, which is equivalent to category 2 on the Saffir-Simpson hurricane scale.

Systems

Tropical cyclone Blake

Tropical Category 1 Cyclone ( BoM )
Tropical storm
Blake 2020-01-06 0537Z.jpg Blake 2020 track.png
Duration January 4th - January 11th
intensity 40 kn (75 km / h ) (10 minutes) , 986 hPa

Heavy tropical cyclone Claudia

Category 3 cyclone ( BoM )
Category 1 cyclone
Claudia 2020-01-13 0530Z.jpg Claudia 2020 track.png
Duration January 4th - January 17th
intensity 75 kn (140 km / h ) (10 minutes) , 969 hPa


Tropical low 04U

Tropical low ( BoM )
TL 98P 2020-01-27 0441Z.jpg TL 98P Jan 2020 track.png
Duration January 23rd - January 30th
intensity Unknown wind force, 998 hPa

Severe tropical cyclone Damien

Category 3 cyclone ( BoM )
Category 2 cyclone
Damien 2020-02-08 0619Z.jpg Damien 2020 track.png
Duration February 3 - February 10
intensity 80 kn (150 km / h ) (10 minutes) , 955 hPa

Tropical low Uesi

Tropical low ( BoM )
Subtropical storm ( SSHWS )
Uesi 2020-02-13 2343Z.jpg Uesi 2020 track.png
Duration February 3 - February 15 ( left region )
(February 5 to 13 outside)
intensity 50 kn (95 km / h ) (10 minutes) , 977 hPa

Tropical cyclone Esther

Tropical Category 1 Cyclone ( BoM )
Tropical storm
Esther 2020-02-24 0441Z.jpg Esther 2020 track.png
Duration February 21 - March 5
intensity 40 kn (75 km / h ) (10 minutes) , 988 hPa

Heavy tropical cyclone Ferdinand

Category 3 cyclone ( BoM )
Category 2 cyclone
Ferdinand 2020-02-26 0605Z.jpg Ferdinand 2020 track.png
Duration February 22nd - March 4th
intensity 85 kn (155 km / h ) (10 minutes) , 960 hPa

Tropical low 09U

Tropical low ( BoM )
Tropical storm
TL 09U 2020-03-11 0620Z.jpg 09U 2020 track.png
Duration March 9 - March 13
intensity 40 kn (75 km / h ) (10 minutes) , 997 hPa

Tropical cyclone Gretel

Tropical Category 1 Cyclone ( BoM )
Tropical storm
Gretel 2020-03-14 2350Z.jpg Gretel 2020 track.png
Duration March 10th - March 14th ( left region )
intensity 40 kn (75 km / h ) (10 minutes) , 990 hPa

Tropical low 11U

Tropical low ( BoM )
TL 11U 2020-04-01 0032Z.jpg TL 11U Mar 2020 track.png
Duration March 29th - April 2nd
intensity Wind strength unknown, 1005 hPa

Tropical cyclone Harold

Tropical Category 1 Cyclone ( BoM )
Tropical storm
90P 2020-04-02 0255Z.jpg Harold 2020 track.png
Duration April 1st - April 2nd ( left region )
intensity 35 kn (65 km / h ) (10 minutes) , 997 hPa

Tropical low Jeruto

Tropical low ( BoM )
15U 2020-04-13 0415Z.jpg Jeruto 2020 track.png
Duration April 10 - April 13 ( left region )
intensity 30 kn (55 km / h ) (10 minutes) , 1006 hPa

Tropical Depression

Tropical Depression ( FMS )
16U 2020-05-07 0706Z.jpg TL 96S May 2020 track.png
Duration May 3 - May 10
intensity 30 kn (55 km / h ) (10 minutes) , 1004 hPa

Storm names

Bureau of Meteorology

The Australian Bureau of Meteorology monitors all tropical cyclones in the region and names the systems that are formed outside of the areas of responsibility of the Jakarta and Port Moresby warning centers mentioned below. Before the season, the next eight names from the list of tropical cyclone names were as follows:

  • Blake
  • Claudia
  • Damien
  • Esther
  • Ferdinand
  • Gretel
  • Harold
  • Imogen  (unused)

TCWC Jakarta

The Tropical Cyclone Warning Center in Jakarta monitors the formation of tropical cyclones between the equator and 11 ° south latitude between 90 ° and 145 ° east longitude. If a tropical cyclone had formed in this area, the name would have been removed from the following list; however, no cyclone formed in this area in the 2019-20 season.

  • Mangga  (unused)
  • Seroja  (unused)
  • Teratai  (unused)
  • Anggrek  (unused)
  • Bakung  (unused)
  • Cempaka  (unused)
  • Dahlia  (unused)
  • Flamboyan  (unused)

TCWC Port Moresby

Tropical cyclones, which form between the equator and 11 ° south latitude between 151 and 160 ° east longitude, get their name from the Tropical Cyclone Warning Center in Port Moresby , Papua New Guinea . The formation of named storms in this sea area is rare; no cyclone has formed here since 2007 . The order in which the names are assigned is probably not regulated. The list of names includes the following names:

  • Aluminum  (unused)
  • Buri  (unused)
  • Dodo  (unused)
  • Emau  (unused)
  • Fere  (unused)
  • Hibu  (unused)
  • Ila  (unused)
  • Kama  (unused)
  • Lobu  (unused)
  • Maila  (unused)

other names

When a named tropical cyclone reaches the Australian region of the South Pacific (east of 160 ° east longitude), it retains the name assigned to it by the Fiji Meteorological Service (FMS) or the New Zealand MetService . The same applies if a tropical cyclone moves across from the southwest Indian Ocean (west of 90 ° east longitude); it then keeps the name given to it by the weather services in Mauritius or Madagascar on behalf of Météo-France . In the 2019-20 cyclone season, this affected the following names:

  • Uesi (named by FMS)
  • Irondro (named by Météo-France)
  • Jeruto (named by Météo-France)

See also

supporting documents

  1. a b Australian Tropical Cyclone Outlook for 2019 to 2020 ( English ) Australian Bureau of Meteorology. October 11, 2019. Archived from the original on October 14, 2019. Retrieved on May 15, 2020.
  2. a b Southwest Pacific Tropical Cyclone Outlook - October 2019 ( English ) National Institute of Water and Atmospheric Research. October 11, 2019. Retrieved October 11, 2019.
  3. South Pacific Tropical Cyclone Outlook for 2019 to 2020 ( English ) Australian Bureau of Meteorology. October 11, 2019. Retrieved May 15, 2020.
  4. ^ Tropical Cyclone Operational plan for the South Pacific & Southeast Indian Ocean, 2014 Edition ( English , PDF) WMO. Retrieved May 15, 2020.
  5. Cyclone Names ( Indonesian ) Archived from the original on June 17, 2019. Retrieved June 17, 2019.

Web links