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{{infobox tropical cyclone small
{{infobox tropical cyclone small
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Revision as of 16:03, 5 February 2020

2019–20 South-West Indian Ocean cyclone season
Season summary map
Seasonal boundaries
First system formed22 July 2019
Last system dissipatedSeason ongoing
Strongest storm
NameAmbali
 • Maximum winds220 km/h (140 mph)
(10-minute sustained)
 • Lowest pressure930 hPa (mbar)
Seasonal statistics
Total disturbances8
Total depressions6
Total storms6
Tropical cyclones3
Intense tropical cyclones1
Very intense tropical cyclones1
Total fatalities40 total
Total damage> $25 million (2020 USD)
Related articles
South-West Indian Ocean tropical cyclone seasons
2017–18, 2018–19, 2019–20, 2020–21, 2021–22

The 2019–20 South-West Indian Ocean cyclone season is a current event of the annual cycle of tropical cyclone and subtropical cyclone formation. The season officially began on 15 November, however, the formation of the first system—Zone of Disturbed Weather 01—occurred on 22 July 2019, well before the official start of the season. It will end on 30 April 2020, with the exception of Mauritius and the Seychelles, for which it will end on 15 May 2020. These dates conventionally delimit the period of each year when most tropical and subtropical cyclones form in the basin, which is west of 90°E and south of the Equator. Tropical and subtropical cyclones in this basin are monitored by the Regional Specialised Meteorological Centre in Réunion.

For the second consecutive year in a row, the first system formed before the official start of the season. Afterwards, two storms formed in the month of December: Cyclone Belna on 2 December, which brought flooding and strong wind to northwestern Madagascar, and also Very Intense Tropical Cyclone Ambali a day later. Ambali was the first very intense tropical cyclone in the basin since Fantala in 2016.

Seasonal forecasts

The season began with one of the strongest positive phases of the Indian Ocean Dipole (IOD) in the past 40 years. Météo-France Réunion expects that the positive anomalies will decay slowly throughout austral summer, having a prominent impact on the cyclone season through mid-February. As a result, storm activity was not forecast to begin until December—the month in which the monsoonal flow becomes established in the western half of the basin (the dry conditions in the central and eastern Indian Ocean induced by the IOD would prevent typical early-season storms). With warm and wet conditions expected in the western Indian Ocean, cyclone formation is expected to be enhanced west of 70°E.[1]

A near-average eight to eleven storms are expected throughout the course of the season, with the possibility of a higher than average number of these attaining Tropical Cyclone strength with winds of 120 km/h (75 mph) or greater as a result of favourable upper-level divergence in the western region of the basin. Activity is expected to be focused west of the Chagos Archipelago, presenting an increased threat to land. A wide range of track types and motions are expected, although predominantly southerly storm motion will be favored.[1]

In November, the Mauritius Meteorological Services forecasted eight to ten named storms and emphasised that storm formation would be more likely west of Diego Garcia.[2]

Seasonal summary

Tropical cyclone scales#Comparisons across basins

On 22 July, Zone of Disturbed Weather 01 formed and started the cyclone season. The disturbance failed to organise into a tropical depression and dissipated on 25 July. Tropical activity came to a halt until 2 December when Tropical Disturbance 02 formed. A day later, Tropical Depression 03 formed and was later named Ambali. On 5 December, Tropical Storm Ambali rapidly intensified, becoming the first very intense tropical cyclone since Fantala in 2016. Tropical Disturbance 02 then became Belna, and Belna continued to intensify into a Severe Tropical Storm. Belna then intensified into a cyclone, equivalent to a category 3 hurricane before making landfall in northwestern Madagascar as a category 2 hurricane-equivalent storm, leaving significant damages and 9 deaths. In late December, tropical storm Calvinia formed. It persisted into 2020. Activity was quit for three weeks. On 19th January, a tropical depression formed, but soon dissipated without been named. Two tropical storms formed in late January, Diane and Esami. They also both dissipated without reaching tropical cyclone status. In early February, another tropical depression formed.

Systems

Zone of Disturbed Weather 01

Zone of disturbed weather
 
Duration22 July – 25 July
Peak intensity45 km/h (30 mph) (10-min);
1001 hPa (mbar)

In mid-July, a broad wind circulation developed over the central Indian Ocean, accompanied by deep convection. Some computer models suggested the possibility of a southern segment of this system organising into a tropical cyclone; Météo-France (MFR) initially estimated a "very low" chance of a moderate tropical storm materialising from the large circulation near Diego Garcia.[3] Due to strong wind shear, the environment remained unfavourable for tropical development.[4] On 22 July, Météo-France began monitoring the system as a zone of disturbed weather; the system's forward motion was initially southward.[5] A temporary decrease in wind shear on 23 July provided a brief period conducive for tropical development,[6] and the system strengthened to its peak winds of 45 km/h (30 mph) that day.[5] However, the disturbance's centre of circulation remained ill-defined and lacking showers and thunderstorms.[7] Although the disturbance was forecast to initially strengthen into a tropical storm,[7] an increase in wind shear prevented the storm from consolidating further about the centre of circulation and caused the overall wind field to disorganise.[8][9] The system curved towards the west on July 24 and eventually degenerated into a remnant circulation northeast of Rodrigues by the 25 July;[5] these remnants persisted for another day before dissipating entirely.[10][11]

Tropical Cyclone Belna

Main article: Cyclone Belna
Tropical cyclone (MFR)
Category 3 tropical cyclone (SSHWS)
 
Duration2 December – 11 December
Peak intensity155 km/h (100 mph) (10-min);
955 hPa (mbar)

MFR began highlighting the potential for tropical cyclone development in their daily bulletins on 25 November, noting an increase in shower activity west of the Seychelles.[12] Aided by the passage of a Kelvin wave and a favourable window in the Madden–Julian oscillation, a broad trough of low pressure began to take shape within the storm activity, extending across the equator.[13][14] Projections from computer models remained in disagreement over the system's future, complicated by the concurrent development of a tropical disturbance in the northwestern Indian Ocean along the same trough.[14] A loosely-defined wind circulation was detected 263 km (163 mi) south of Mahe, Seychelles on 29 November, offset from convection.[15] Over the following days, this circulation tightened within an environment moderately conducive for tropical development.[16][17] Météo-France declared the system as a zone of disturbed weather on 2 December; at the time the system had drifted west from its point of origin.[18] Although the storm was better organised and the environment conducive for intensification, the storm's wind field initially remained elongated and rainfall remained north of the storm's centre.[19][20][21] The disturbance become a tropical depression on 5 December, attended by an increase in rainbands and the return of convection at the center of circulation;[22][23] at 18:00 UTC that day, the system was upgraded to Moderate Tropical Storm Belna. Belna was upgraded further to severe tropical storm status early on 6 December.[18] Around the same time, a cloud-obscured eye briefly became apparent in microwave satellite imagery. Due to a strengthening area of high pressure to its east, Belna began to curve from its initial westward drift to a more directed southwestward trajectory.[24] After a brief period of strengthening,[18] Belna's central dense overcast remained largely unchanged throughout 6 December before signs of resumed intensification emerged by the day's end, followed by the development of another eye.[25][26][27] With the storm's eye becoming better defined, MFR upgraded Belna to a tropical cyclone early on 7 December. Hot towers were detected atop and within the storm's radius of maximum winds, suggesting the onset of a more accelerated rate of intensification.[28] On 9 December, Belna made landfall near Mayotte and soon began to rapidly weaken, with the winds dropping below tropical-storm-force on the next day. The system dissipated late on 11 December over Haute Matsiatra.[18]

Météo Madagascar first issued green alerts for the Madagascan districts of Diana, Sava, and Sofia on 4 December based on a high probability of Belna impacting northeastern Madagascar. Accordingly, cyclone response measures were activated by the National Office for Risk and Disaster Management and humanitarian organisations across northern Madagascar.[29] Green alerts were later extended to encompass five districts.[30] A cyclone pre-alert was issued for Mayotte on 6 December,[31] succeeded by an orange alert the following day.[32] Civil security personnel from mainland France and Reunion, some from the National Gendarmerie, were sent to Mayotte to aid storm preparation efforts there.[33][34] Shelters were opened in several Mayotte communes on 7 December.[35] The National Office for Risk and Disaster Management and 11 humanitarian agencies were active in northern Madagascar by 9 December.[29][36] Belna's effects in Mayotte were minimal as the storm passed 100 km (62 mi) to the east.[37] The worst effects of Belna in Madagascar occurred in Soalala, where the storm mad landfall.[38] The roofs of 80% of residences and government buildings in the city were damaged by Belna's winds. Damage to homes displaced 1,400 people in Soalala and another 900 throughout Madagascar.[39] Extensive flooding also affected both Soalala and Antsiranana.[40][41] Belna's impacts in Madagascar killed nine people and caused at least US$25 million in economic losses.[42]

Very Intense Tropical Cyclone Ambali

Very intense tropical cyclone (MFR)
Category 4 tropical cyclone (SSHWS)
 
Duration3 December – 7 December
Peak intensity220 km/h (140 mph) (10-min);
930 hPa (mbar)

While Belna was gradually developing out of an extended trough of low pressure, another area of convection formed along the same trough between the Seychelles and the Chagos Archipelago in early December.[43] The system organised quickly, attaining formative rainbands around a coalescing centre of circulation on 3 December.[44] At 06:00 UTC, the system was classified as a Zone of Disturbed Weather. A day later, the system was upgraded to a tropical depression following a significant increase in convection near its centre.[45][46] Steered by a high-pressure area centred over the southern Indian Ocean, the tropical depression moved south.[47] The quick organisation continued into 5 December, and MFR named the system Moderate Tropical Storm Ambali as a central dense overcast emerged;[48] Ambali intensified into a Severe Tropical Storm a few hours later.[45] Buoyed by a highly favourable environment with waters between 29–30 °C (84–86 °F), explosive intensification ensued, accompanied by the formation of an eye.[49][50] At 18:00 UTC on 5 December, MFR upgraded Ambali to intense tropical cyclone status following a sharp 75 km/h (45 mph) increase in the storm's winds in 3 hours.[45] The cyclone was highly compact, with a distinct eye 15 km (9 mi) in diameter surrounded by cold cloud tops.[51][52]

Six hours later, Ambali was reclassified as a very intense tropical cyclone,[45] the highest rating on the MFR's intensity scale and the first in the basin since Fantala in 2016.[53][54] The agency estimated maximum 10-minute sustained winds of 220 km/h (140 mph) and a minimum pressure of 930 mbar (hPa; 27.46 inHg);[45] concurrently, the Joint Typhoon Warning Center (JTWC) assessed peak 1-minute sustained winds of 250 km/h (155 mph), making Ambali a high-end category 4-equivalent on the Saffir–Simpson scale. The cyclone's eye had contracted further to a diameter of 9 km (5 mi) early on 6 December at the time of peak intensity.[55] Based on JTWC data, Ambali's winds increased by 185 km/h (115 mph) in 24 hours, marking the fastest 24-hour intensification recorded in the Southern Hemisphere since 1980 and topping the old record set by Cyclone Ernie in 2017.[56][57] A gradual weakening trend soon succeeded the rapid intensification episode as indicated by a clouding-over of the small eye.[55] Within a few hours of Ambali's peak strength, the eye was no longer apparent on infrared satellite imagery; dry air became wrapped close to the core of the cyclone's compact circulation.[58] Impaired further by an increase in wind shear,[59][60] Ambali's strength quickly diminished throughout 6 December, and by the following day, its winds fell below tropical cyclone thresholds.[45] Despite otherwise inhibiting environmental factors, the eye reappeared for a two-hour period before fully succumbing to the dry air and 55 km/h (35 mph) wind shear.[61] Rapid weakening soon proceeded, and by mid-day on 7 December, the storm's coldest cloud tops were displaced east of the center of circulation; Ambali's motion also became erratic as winds in the lower levels of the troposphere began to govern its track.[62] On 8 December, Ambali degenerated to a remnant low and MFR issued their last advisory on the dissipating system.[63]

Tropical Cyclone Calvinia

Tropical cyclone (MFR)
Category 1 tropical cyclone (SSHWS)
 
Duration27 December – 1 January
Peak intensity120 km/h (75 mph) (10-min);
973 hPa (mbar)

The origin of Calvinia can be traced back to an area of persistent showers and thunderstorms southwest of Diego Garcia first noted by the JTWC on 16 December. The system featured a loosely-defined circulation upon designation, but computer models indicated that tropical cyclogenesis intermediately was unlikely.[64] The storm complex drifted southward over the next two days,[65] and an increase in organisation briefly prompted the issuance of a Tropical Cyclone Formation Alert (TCFA) on 18 December before an increase in wind shear cut development of the system short, leading to alert's cancellation despite the system producing storm-force winds.[66][67] The system then slowly curved to the west towards Madagascar,[68][69] eventually moving into a much more favorable environment enhanced by a passing Kelvin wave by 25 December.[70][71] Two days later, MFR designated the system as a Zone of Disturbed Weather;[72] the disturbance was initially broad and had two areas of rotation.[73] The next day, MFR upgraded the system to a Tropical Depression while the JTWC issued a second TCFA.[72][74] Tracking southward, the depression strengthened and became a Moderate Tropical Storm on 29 December, gaining the name Calvinia.[75][76]

Dry air and wind shear afflicted the nascent storm early in its development, limiting convection the southern half of Calvinia's circulation.[76][77] The storm remained asymmetric but showed signs of improvement on 29 December as the environment became more favourable for intensification, with rainbands redeveloping near the center of the storm. Concurrently, Calvinia turned towards the southwest and slowed down as it neared Mauritius.[78] The next morning, a small eye emerged within the quasi-stationary Calvinia on radar imagery from the Mascarene Islands; allowing the MFR to upgrade Calvinia to a Severe Tropical Storm that day.[79] The eye was later evident on satellite imagery, indicative of continued intensification.[80] After the eye had collapsed yet again, an area of high pressure to Calvinia's southeast then began to steer the storm slowly towards the south and away from the Mascarene Islands on 30 December.[81] Shortly after it began to track away from Mauritius, the storm intensified further into a Category 1 hurricane-equivalent storm and another eye began to appear on satellite imagery on December 31. Shortly after, the MFR also upgraded Calvinia to a tropical cyclone.[82] Not too long after intensifying, the storm accelerated southwestwards and significantly weakened on January 1. As a result, the MFR issued their final advisory on the system as it turned extratropical.[83]

All the three major Mascarene Islands were placed under a pre-cyclonic alert on 29 December.[84] Mauritius Meteorological Services issued a class III warning for Mauritius on 29 December, indicating the forecast onset of 120 km/h (75 mph) wind gusts.[85][86] Several key services in Mauritius were closed ahead of Calvinia's approach, including Sir Seewoosagur Ramgoolam International Airport and the Port Louis Harbour amid the country's peak tourism season, effectively suspending external trade with Mauritius.[85][87] The Stock Exchange of Mauritius suspended operations, and most other shops and businesses in Port Louis also closed.[87] Air Mauritius postponed all of its flights indefinitely.[85] Evacuation shelters on Mauritius housed 298 refugees during the storm,[88] with a total of 168 shelters opened.[89] The centre of Calvinia was 60 km (37 mi) from Mauritius at its closest approach on 31 December.[90] Stormy conditions prevailed on the island, causing flooding in some areas.[84] Power outages affected 6,000 families in Union Vale and Ferney.[89] Rains from Calvinia caused flooding in southern Réunion, blocking roads in Saint Louis and L'Étang-Salé.[91] The storm also caused minor damage on the island, knocking down trees and power lines. Water utility company Sudéau reported several incidents to its water distribution systems during the storm. A 325 mm (12.8 in)-rainfall total was recorded in Dimitile, while a peak wind gust of 122 km/h (76 mph) was measured in Plaine des Cafres.[90]

Tropical Depression 05

Tropical depression (MFR)
Tropical storm (SSHWS)
 
Duration19 January – 23 January
Peak intensity55 km/h (35 mph) (10-min);
999 hPa (mbar)

In mid-January 2020, a monsoon trough began to produce persistent convection over the southwestern Indian Ocean near the Chagos Archipelago.[92][93] An elongated wind circulation slowly developed within this aggregation of storms moving towards the southeast.[94][95] MFR classified the system as a Zone of Disturbed Weather on 19 January and initiated advisories two days later.[96] Due to strong wind shear and low-level convergence, conditions were unfavourable for substantial intensification.[97] Strong convective bursts occurred in response to an attenuation of wind shear,[98] leading the MFR to reclassify the system to a Tropical Disturbance on 22 January;[96] nonetheless, the system remained generally disorganised as the center of circulation remained near the edge of the associated shower activity.[98][99] The JTWC classified the asymmetric disturbance, now 1,315 km (817 mi) east of Mauritius, as a tropical storm later that day.[100] On 23 January, the MFR upgraded the system to a tropical depression as convection continued to strengthen further in tandem with the diminishing of vertical wind shear;[96][101] however, this period of strengthening was cut short by the storm's trajectory towards the subtropical jet stream.[102] Coupled with a return of wind shear and cooling sea surface temperatures, shower activity associated with the storm quickly diminished; both the MFR and JTWC issued their final advisories on the storm on 23 January.[103][104]

Severe Tropical Storm Diane

Severe tropical storm (MFR)
Tropical storm (SSHWS)
 
Duration22 January – 26 January
Peak intensity95 km/h (60 mph) (10-min);
980 hPa (mbar)

As early as 11 January, long-range ensemble forecast guidance from the European Centre for Medium-Range Weather Forecasts suggested the possibility of a storm forming over the Mozambique Channel.[92] A low-pressure area eventually formed over southern Africa by 18 January, and was forecast by the MFR to develop within the channel as part of a complex series of developing low-pressure minima along a monsoon trough extending across Madagascar.[95][105] A centre of circulation of monsoonal character began to develop on 22 January between Juan de Nova Island and the western Malagasy coast, prompting the MFR to designate the system as Zone of Disturbed Weather 06.[106] The incipient disturbance tracked eastward across Madagascar, maintaining a corridor of strong winds.[107] By the afternoon of 23 January, the centre of the system emerged over the Indian Ocean.[108] The system then began to slowly consolidate with the aid of warm ocean waters, with the MFR upgrading it to a tropical depression on 24 January. The presence of a trough to the south and an equatorial ridge to the north produced a westerly flow in the region, resulting in an unusual eastward track towards the Mascarene Islands.[109] Based on satellite analysis and scatterometer data, the depression strengthened further near Mauritius to a Moderate Tropical Storm by 18:00 UTC on 24 January and received the name Diane.[110] The centre of Diane tracked 30 km (19 mi) north of Mauritius roughly three hours later.[111] Diane's southeasterly motion lessened the inhibitory effects of wind shear, allowing the storm to intensify as indicated by improved convection on the storm's southern side.[112] Deep convection around the central dense overcast remained persistent, and as a result MFR upgraded Diane to Severe Tropical Storm status on 26 January.[113] Diane continued southeast throughout the day, and a combination of wind shear and interaction with a baroclinic zone caused Diane to begin losing tropical characteristics. Much of Diane’s convection eventually diminished, and Diane was reported to have fully lost its tropical characteristics later on 26 January, leading MFR to issue its final tropical advisories on the system.[114] The extratropical remnants of Diane continued to persist for an additional two days, curving towards the southwest before MFR issued its last bulletin on the system on 28 January.[115][114]

Diane's precursor disturbance worsened flood conditions in Madagascar, producing heavy rainfall; 129 mm (5.1 in) of rain fell in Antsohihy amid widespread rainfall totals of 50 mm (2.0 in).[116] Effects were most prevalent in seven districts in northern Madagascar, where nearly 107,000 people were affected. Thousands of hectares of land and more than 10,600 homes were inundated by floodwaters;[117][118] of the homes, 146 were destroyed.[117] Thirty-one people were killed, primarily by drowning, according to the Bureau National de Gestion des Risques et des Catastrophes.[117][118] The Malagasy government declared a state of emergency for Madagascar on 24 January.[117] A yellow cyclone pre-alert was issued by MFR for Reunion on 23 January, eventually superseded by an orange pre-alert.[119][120] The University of Reunion Island closed all of its campuses ahead of Diane.[120] Southern parts of Reunion were most heavily affected by Diane's rainfall. In Les Makes, 460 mm (18 in) of rain was recorded.[121] Several rafts at river crossings were flooded, truncating roads.[122] A level 3 alert was issued for Mauritius and a level 1 alert for Rodrigues on 24 January;[123] these alerts were lifted the next day.[124] In Mauritius, 1,121 people sought refuge in 23 evacuation centres.[125] Sir Seewoosagur Ramgoolam International Airport closed for 19 hours as Diane passed to the north.[126] Flights to Rodrigues were cancelled on 25 January.[124]

Moderate Tropical Storm Esami

Moderate tropical storm (MFR)
Tropical storm (SSHWS)
 
Duration23 January – 26 January
Peak intensity75 km/h (45 mph) (10-min);
993 hPa (mbar)

Beginning on 16 January, MFR began to note the potential of a disturbance forming east of Madagascar during the same active period that would eventually spawn both Tropical Depression 05 and Moderate Tropical Storm Diane.[127][128] A convergence zone had persisted over the region and was expected to evolve into a monsoon trough from which tropical cyclones could develop.[129] On 22 January, a low-pressure area with multiple circulaton centres developed near the Mascarene Islands between the weakening Tropical Depression 05 and then-Tropical Disturbance 06 (which would later become Moderate Tropical Storm Diane).[106][130] The MFR did not forecast tropical cyclogenesis at the time due to the presence of unfavourable atmospheric conditions.[106] However, a more well-defined circulation quickly took hold with an associated curved rainband appearing on the system, leading MFR to designate the system as Tropical Disturbance 07 between Mauritius and Rodrigues on 23 January.[130][131] Due to westerly flow in the mid-troposphere, the newly-classified disturbance took an east-southeasterly course. Though the storm's convection was variable, wind shear limited convection to the northern quadrants of the circulation.[132] The disturbance was upgraded to a Tropical Depression based on scatterometre data later that day.[132]

It continued to intensify, developing a quickly evolving and compact area of central overcast,[133] receiving the name Esami as it intensified into a Moderate Tropical Storm on 25 January.[134] Dry air and wind shear generated by the nearby Moderate Tropical Storm Diane to the storm's west resulted in Esami maintaining a lopsided appearance with the strongest winds and convection limited to the eastern part of the wind circulation.[135] This dry air was later entrained to the centre of Esami, exposing the center of circulation and displacing convection from it.[136] According to MFR, Esami's 10-minute maximum sustained winds topped out at 75 km/h (45 mph) early on 25 January.[131] The passage of a trough to Esami's south drew the storm increasingly poleward, causing its track to curve towards the south-southeast.[137] On 26 January, Esami began to interact with a baroclinic zone associated with the subtropical jet stream, causing Esami to lose its tropical characteristics. At 12:00 UTC that day, MFR re-classified Esami as a post-tropical depression.[138]

Moderate Tropical Storm Francisco

Moderate tropical storm (MFR)
Tropical storm (SSHWS)
 
Duration3 February – Present
Peak intensity75 km/h (45 mph) (10-min);
994 hPa (mbar)

On February 1, the JTWC began to monitor a zone of persistent convection north-east of Madagascar associated with the monsoon trough. The system slowly organized over the next few days as it moved southwestwards, containing several broad, weak circulations within it. Beginning on the 4th of February, following a sudden increase in organization, the MFR classified it as Zone of Disturbed Weather 08 on February 04 and later, Tropical Depression 08; beginning to issue advisories on it, while the JTWC classified it as a tropical storm, referring it to as Tropical Cyclone 13S.

Storm names

Within the South-West Indian Ocean, tropical depressions and subtropical depressions that are judged to have 10-minute sustained wind speeds of 65 km/h (40 mph) by the Regional Specialised Meteorological Centre on La Réunion Island, France (RSMC La Réunion) are usually assigned a name. However, it is the Sub-Regional Tropical Cyclone Advisory Centers in Mauritius and Madagascar who name the systems. The Sub-Regional Tropical Cyclone Advisory Center in Mauritius names a storm should it intensify into a moderate tropical storm between 55°E and 90°E. If instead, a cyclone intensifies into a moderate tropical storm between 30°E and 55°E then the Sub-Regional Tropical Cyclone Advisory Center in Madagascar assigns the appropriate name to the storm.

Beginning from the 2016–17 season, name lists within the South-West Indian Ocean will be rotated on a triennial basis. Storm names are only used once, so any storm name used this year will be removed from rotation and replaced with a new name for the 2022–23 season. The unused names are expected to be reused in the list for the 2022–23 season.[139] All of the names are the same with the exception of Ambali, Belna, Calvinia, Diane, Esami and Francisco, which replaced Abela, Bransby, Carlos, Dineo, Enawo and Fernando from the 2016–17 season.

  • Ambali
  • Belna
  • Calvinia
  • Diane
  • Esami
  • Francisco (active)
  • Gabekile (unused)
  • Herold (unused)
  • Irondro (unused)
  • Jeruto (unused)
  • Kundai (unused)
  • Lisebo (unused)
  • Michel (unused)
  • Nousra (unused)
  • Olivier (unused)
  • Pokera (unused)
  • Quincy (unused)
  • Rebaone (unused)
  • Salama (unused)
  • Tristan (unused)
  • Ursula (unused)
  • Violet (unused)
  • Wilson (unused)
  • Xila (unused)
  • Yekela (unused)
  • Zania (unused)

Seasonal effects

This table lists all of the tropical cyclones and subtropical cyclones that were monitored during the 2019–20 South-West Indian Ocean cyclone season. Information on their intensity, duration, name, areas affected, primarily comes from RSMC La Réunion. Death and damage reports come from either press reports or the relevant national disaster management agency while the damage totals are given in 2019 USD.

Name Dates Peak intensity Areas affected Damage
(USD) 		Deaths Refs
Category Wind speed Pressure
01 22 – 25 July Zone of disturbed weather 45 km/h (30 mph) 1001 hPa (29.56 inHg) None None None
Belna 2 – 11 December Tropical cyclone 155 km/h (100 mph) 955 hPa (28.20 inHg) Seychelles, Mayotte, Comoros, Madagascar > $25 million 9
Ambali 3 – 7 December Very intense tropical cyclone 220 km/h (140 mph) 930 hPa (27.46 inHg) None None None
Calvinia 27 December – 1 January Tropical cyclone 120 km/h (75 mph) 973 hPa (28.73 inHg) Mauritius, Rodrigues Unknown None
05 19 – 23 January Tropical depression 55 km/h (35 mph) 999 hPa (29.50 inHg) None None None
Diane 22 – 26 January Severe tropical storm 95 km/h (60 mph) 980 hPa (28.94 inHg) Madagascar, Réunion, Mauritius Unknown 31
Esami 23 – 26 January Moderate tropical storm 75 km/h (45 mph) 993 hPa (29.32 inHg) Rodrigues None None
Francisco 4 February – Present Moderate tropical storm 75 km/h (45 mph) 994 hPa (29.35 inHg) None None None
Season aggregates
8 systems 22 July–
Season ongoing		 220 km/h (140 mph) 930 hPa (27.46 inHg) None 40

See also

References

  1. ^ a b Prévision saisonnière d’activité cyclonique dans le Sud-Ouest de l'océan Indien : Saison 2019-2020 (PDF). PREVISION SAISONNIERE ACTIVITE CYCLONIQUE SWIO 2019-2020 (Report) (in French). Saint-Denis, Réunion: Météo-France La Réunion. Retrieved 6 December 2019.
  2. ^ "Summer 2019–2020 Mauritius and Rodrigues". Mauritius Meteorological Services. 4 November 2019. Archived from the original on 6 December 2019. Retrieved 6 December 2019.
  3. ^ Bulletin Sur L'Activité Cyclonique et les Conditions Meteorologiques Tropicales Sur le Sud-Ouest de L'Ocean Indien: Le 19/07/2019 a 1200 UTC (PDF). Liste des bulletins ZCIT (Tropical Bulletin) (in French). Saint-Denis, Réunion: Météo-France La Réunion. 19 July 2019. Retrieved 12 November 2019.
  4. ^ Bulletin Sur L'Activité Cyclonique et les Conditions Meteorologiques Tropicales Sur le Sud-Ouest de L'Ocean Indien: Le 21/07/2019 a 1200 UTC (PDF). Liste des bulletins ZCIT (Tropical Bulletin) (in French). Saint-Denis, Réunion: Météo-France La Réunion. 21 July 2019. Retrieved 12 November 2019.
  5. ^ a b c "Cyclone 01-20192020". Saison en cours sur le sud-Ouest de l'Océan Indien (in French). Saint-Denis, Réunion: Météo-France La Réunion. Retrieved 12 November 2019.
  6. ^ Bulletin Sur L'Activité Cyclonique et les Conditions Meteorologiques Tropicales Sur le Sud-Ouest de L'Ocean Indien: Le 23/07/2019 a 1200 UTC (PDF). Liste des bulletins ZCIT (Tropical Bulletin) (in French). Saint-Denis, Réunion: Météo-France La Réunion. 23 July 2019. Retrieved 12 November 2019.
  7. ^ a b Bulletin D'Analyse et de Prévision Cyclonique (Sud-Ouest Ocean Indien): 1/1/20192020 a Zone Perturbée 1 (PDF). Liste des bulletins ZCIT (Report) (in French). Saint-Denis, Réunion: Météo-France La Réunion. 23 July 2019. Retrieved 12 November 2019.
  8. ^ Bulletin D'Analyse et de Prévision Cyclonique (Sud-Ouest Ocean Indien): 2/1/20192020 a Zone Perturbée 1 (PDF). Liste des bulletins ZCIT (Report) (in French). Saint-Denis, Réunion: Météo-France La Réunion. 24 July 2019. Retrieved 12 November 2019.
  9. ^ Bulletin Sur L'Activité Cyclonique et les Conditions Meteorologiques Tropicales Sur le Sud-Ouest de L'Ocean Indien: Le 24/07/2019 a 1200 UTC (PDF). Liste des bulletins ZCIT (Tropical Bulletin) (in French). Saint-Denis, Réunion: Météo-France La Réunion. 24 July 2019. Retrieved 12 November 2019.
  10. ^ Bulletin Sur L'Activité Cyclonique et les Conditions Meteorologiques Tropicales Sur le Sud-Ouest de L'Ocean Indien: Le 26/07/2019 a 1200 UTC (PDF). Liste des bulletins ZCIT (Tropical Bulletin) (in French). Saint-Denis, Réunion: Météo-France La Réunion. 26 July 2019. Retrieved 12 November 2019.
  11. ^ Bulletin Sur L'Activité Cyclonique et les Conditions Meteorologiques Tropicales Sur le Sud-Ouest de L'Ocean Indien: Le 27/07/2019 a 1200 UTC (PDF). Liste des bulletins ZCIT (Tropical Bulletin) (in French). Saint-Denis, Réunion: Météo-France La Réunion. 24 July 2019. Retrieved 12 November 2019.
  12. ^ Bulletin Sur L'Activité Cyclonique et les Conditions Meteorologiques Tropicales Sur le Sud-Ouest de L'Ocean Indien: Le 25/11/2019 a 1200 UTC (PDF). Liste des bulletins ZCIT (Tropical Bulletin) (in French). Saint-Denis, Réunion: Météo-France La Réunion. 25 November 2019. Retrieved 28 November 2019.
  13. ^ Bulletin Sur L'Activité Cyclonique et les Conditions Meteorologiques Tropicales Sur le Sud-Ouest de L'Ocean Indien: Le 27/11/2019 a 1200 UTC (PDF). Liste des bulletins ZCIT (Tropical Bulletin) (in French). Saint-Denis, Réunion: Météo-France La Réunion. 27 November 2019. Retrieved 28 November 2019.
  14. ^ a b Bulletin Sur L'Activité Cyclonique et les Conditions Meteorologiques Tropicales Sur le Sud-Ouest de L'Ocean Indien: Le 28/11/2019 a 1200 UTC (PDF). Liste des bulletins ZCIT (Tropical Bulletin) (in French). Saint-Denis, Réunion: Météo-France La Réunion. 28 November 2019. Retrieved 28 November 2019.
  15. ^ Significant Tropical Weather Advisory for the Western and South Pacific Oceans (29 November 0330 UTC) (Report). Pearl Harbor, Hawaii: United States Joint Typhoon Warning Center. 28 November 2019.
  16. ^ Bulletin Sur L'Activité Cyclonique et les Conditions Meteorologiques Tropicales Sur le Sud-Ouest de L'Ocean Indien: Le 01/12/2019 a 1200 UTC (PDF). Liste des bulletins ZCIT (Tropical Bulletin) (in French). Saint-Denis, Réunion: Météo-France La Réunion. 1 December 2019. Retrieved 1 December 2019.
  17. ^ Significant Tropical Weather Advisory for the Western and South Pacific Oceans (30 November 1800 UTC) (Report). Pearl Harbor, Hawaii: United States Joint Typhoon Warning Center. 30 November 2019.
  18. ^ a b c d "Cyclone 02-20192020". Saison en cours sur le sud-Ouest de l'Océan Indien (in French). Saint-Denis, Réunion: Météo-France La Réunion. Retrieved 3 December 2019.
  19. ^ Bulletin D'Analyse et de Prévision Cyclonique (Sud-Ouest Ocean Indien): 2/2/20192020 a Zone Perturbée 2 (PDF). Liste des bulletins ZCIT (Report) (in French). Saint-Denis, Réunion: Météo-France La Réunion. 4 December 2019. Retrieved 4 December 2019.
  20. ^ Bulletin D'Analyse et de Prévision Cyclonique (Sud-Ouest Ocean Indien): 4/2/20192020 a Perturbation Tropicale 2 (PDF). Liste des bulletins ZCIT (Report) (in French). Saint-Denis, Réunion: Météo-France La Réunion. 4 December 2019. Retrieved 4 December 2019.
  21. ^ Tropical Cyclone 02S (Two) Warning NR 001 (Tropical Cyclone Warning). United States Joint Typhoon Warning Center. 4 December 2019. Retrieved 5 December 2019 – via Global Disaster Alert and Coordination System.
  22. ^ Bulletin D'Analyse et de Prévision Cyclonique (Sud-Ouest Ocean Indien): 6/2/20192020 a Depression Tropicale 2 (PDF). Liste des bulletins ZCIT (Report) (in French). Saint-Denis, Réunion: Météo-France La Réunion. 5 December 2019. Retrieved 5 December 2019.
  23. ^ Bulletin D'Analyse et de Prévision Cyclonique (Sud-Ouest Ocean Indien): 7/2/20192020 a Depression Tropicale 2 (PDF). Liste des bulletins ZCIT (Report) (in French). Saint-Denis, Réunion: Météo-France La Réunion. 5 December 2019. Retrieved 5 December 2019.
  24. ^ Bulletin D'Analyse et de Prévision Cyclonique (Sud-Ouest Ocean Indien): 11/2/20192020 a Forte Tempete Tropicale Belna (PDF). Liste des bulletins ZCIT (Report) (in French). Saint-Denis, Réunion: Météo-France La Réunion. 6 December 2019. Retrieved 7 December 2019.
  25. ^ Bulletin D'Analyse et de Prévision Cyclonique (Sud-Ouest Ocean Indien): 13/2/20192020 a Forte Tempete Tropicale Belna (PDF). Liste des bulletins ZCIT (Report) (in French). Saint-Denis, Réunion: Météo-France La Réunion. 6 December 2019. Retrieved 7 December 2019.
  26. ^ Bulletin D'Analyse et de Prévision Cyclonique (Sud-Ouest Ocean Indien): 14/2/20192020 a Forte Tempete Tropicale Belna (PDF). Liste des bulletins ZCIT (Report) (in French). Saint-Denis, Réunion: Météo-France La Réunion. 7 December 2019. Retrieved 7 December 2019.
  27. ^ Tropical Cyclone 02S (Belna) Warning NR 006 (Tropical Cyclone Warning). United States Joint Typhoon Warning Center. 7 December 2019. Retrieved 7 December 2019 – via Global Disaster Alert and Coordination System.
  28. ^ Bulletin D'Analyse et de Prévision Cyclonique (Sud-Ouest Ocean Indien): 15/2/20192020 a Cyclone Tropical Belna (PDF). Liste des bulletins ZCIT (Report) (in French). Saint-Denis, Réunion: Météo-France La Réunion. 7 December 2019. Retrieved 7 December 2019.
  29. ^ a b "Southern Africa: Low-pressure system (Flash Update No. 1)" (PDF). ReliefWeb. United Nations Office for the Coordination of Humanitarian Affairs. 4 December 2019. Retrieved 4 December 2019.
  30. ^ "Southern Africa: Ambali & Belna Cyclones (Flash Update No. 2)" (PDF). ReliefWeb. United Nations Office for the Coordination of Humanitarian Affairs. 6 December 2019. Retrieved 7 December 2019.
  31. ^ Rakotondravola, Andry (6 December 2019). "Mayotte en Pré-alerte Cyclonique" (in French). France TV. Retrieved 6 December 2019.
  32. ^ "Belna : Mayotte en alerte orange". IPReunion.com. Imaz Press Réunion. 7 December 2019. Retrieved 7 December 2019.
  33. ^ "Mayotte. Le cyclone Belna se renforce et se fait plus menaçant" (in French). Ouest-France. Agence France-Presse. 6 December 2019. Retrieved 7 December 2019.
  34. ^ "Belna est désormais un cyclone, Mayotte se prépare [Synthèse]" (in French). France TV. 7 December 2019. Retrieved 7 December 2019.
  35. ^ Perzo, Anne (7 December 2019). "Cyclone Belna : les lieux d'hébergement d'urgence par commune (Actualisé)". LeJournalDeMayotte.com. Le Journal de Mayotte. Retrieved 7 December 2019.
  36. ^ "Southern Africa: Cyclone Belna - Flash Update No. 3 (As of 9 December 2019)" (PDF). ReliefWeb. United Nations Office for the Coordination of Humanitarian Affairs. 9 December 2019. Retrieved 9 December 2019.
  37. ^ "BBELNA à Mayotte" (in French). France TV. 9 December 2019. Retrieved 9 December 2019.
  38. ^ "El ciclón tropical 'Belna' toca tierra en el noroeste de Madagascar y provoca inundaciones" (in Spanish). Europa Press. Europa Press. 9 December 2019. Retrieved 10 December 2019.
  39. ^ Tetaud, Sarah (10 December 2019). "Cyclone hits Madagascar, killing 9 and making 1,400 homeless". The Associated Press. Associated Press. Retrieved 10 December 2019.
  40. ^ Antonia, Mamisoa (9 December 2019). "Cyclone Belna: La ville d'Antsiranana inodée". LExpress.mg. L'Express de Madagascar. Retrieved 10 December 2019.
  41. ^ "Southern Africa: Cyclone Belna - Flash Update No. 4 (As of 10 December 2019)" (PDF). ReliefWeb. United Nations Office for the Coordination of Humanitarian Affairs. 10 December 2019. Retrieved 11 December 2019.
  42. ^ 2019 Annual Report (PDF). Reinsurance Thought Leadership (Report). Weather, Climate & Catastrophe Insight. London, United Kingdom: Aon. 22 January 2019. Retrieved 31 January 2020.
  43. ^ Bulletin Sur L'Activité Cyclonique et les Conditions Meteorologiques Tropicales Sur le Sud-Ouest de L'Ocean Indien: Le 03/12/2019 a 1200 UTC (PDF). Liste des bulletins ZCIT (Tropical Bulletin) (in French). Saint-Denis, Réunion: Météo-France La Réunion. 3 December 2019. Retrieved 3 December 2019.
  44. ^ Significant Tropical Weather Advisory for the Western and South Pacific Oceans (3 December 1800 UTC) (Report). Pearl Harbor, Hawaii: United States Joint Typhoon Warning Center. 3 December 2019.
  45. ^ a b c d e f "Cyclone 03-20192020". Saison en cours sur le sud-Ouest de l'Océan Indien (in French). Saint-Denis, Réunion: Météo-France La Réunion. Retrieved 3 December 2019.
  46. ^ Bulletin D'Analyse et de Prévision Cyclonique (Sud-Ouest Ocean Indien): 3/3/20192020 a Depression Tropicale 3 (PDF). Liste des bulletins ZCIT (Report) (in French). Saint-Denis, Réunion: Météo-France La Réunion. 4 December 2019. Retrieved 4 December 2019.
  47. ^ Bulletin D'Analyse et de Prévision Cyclonique (Sud-Ouest Ocean Indien): 4/3/20192020 a Depression Tropicale 3 (PDF). Liste des bulletins ZCIT (Report) (in French). Saint-Denis, Réunion: Météo-France La Réunion. 4 December 2019. Retrieved 4 December 2019.
  48. ^ Bulletin D'Analyse et de Prévision Cyclonique (Sud-Ouest Ocean Indien): 4/3/20192020 a Tempete Tropicale Moderee Ambali (PDF). Liste des bulletins ZCIT (Report) (in French). Saint-Denis, Réunion: Météo-France La Réunion. 5 December 2019. Retrieved 5 December 2019.
  49. ^ Bulletin D'Analyse et de Prévision Cyclonique (Sud-Ouest Ocean Indien): 8/3/20192020 a Forte Tempeter Tropicale Ambali (PDF). Liste des bulletins ZCIT (Report) (in French). Saint-Denis, Réunion: Météo-France La Réunion. 5 December 2019. Retrieved 5 December 2019.
  50. ^ Tropical Cyclone 03S (Ambali) Warning NR 002 (Tropical Cyclone Warning). United States Joint Typhoon Warning Center. 5 December 2019. Retrieved 5 December 2019 – via Global Disaster Alert and Coordination System.
  51. ^ Tropical Cyclone 03S (Ambali) Warning NR 004 (Tropical Cyclone Warning). United States Joint Typhoon Warning Center. 5 December 2019. Retrieved 5 December 2019 – via Global Disaster Alert and Coordination System.
  52. ^ Bulletin D'Analyse et de Prévision Cyclonique (Sud-Ouest Ocean Indien): 9/3/20192020 a Cyclone Tropical Tres Intense Ambali (PDF). Liste des bulletins ZCIT (Report) (in French). Saint-Denis, Réunion: Météo-France La Réunion. 6 December 2019. Retrieved 6 December 2019.
  53. ^ "Meteo. AMBALI diventa un super ciclone sull'Oceano Indiano in 24 ore" (in Italian). Agenzia Nazionale Stampa Associata. 6 December 2019. Retrieved 7 December 2019.
  54. ^ "A: Définitions de base". FAQ (in French). Saint-Denis, Réunion: Météo-France La Réunion. Retrieved 6 December 2019.
  55. ^ a b Tropical Cyclone 03S (Ambali) Warning NR 005 (Tropical Cyclone Warning). United States Joint Typhoon Warning Center. 6 December 2019. Retrieved 6 December 2019 – via Global Disaster Alert and Coordination System.
  56. ^ Belles, Jonathan (7 December 2019). "Three Tropical Cyclones Lurked Near Africa this Week and One Set a Rapid Intensification Record". The Weather Channel. TWC Product and Technology LLC. Retrieved 7 December 2019.
  57. ^ Klotzbach, Philip [@philklotzbach] (6 December 2019). "#Ambali has intensified by a whopping 115 mph in the past 24 hours - the most rapid intensification in a 24-hour period by a Southern Hemisphere named storm on record (since 1980) - breaking the old record of 110 mph in 24 hours set by Ernie in 2017. #hurricane #cyclone" (Tweet). Retrieved 5 December 2019 – via Twitter.
  58. ^ Bulletin D'Analyse et de Prévision Cyclonique (Sud-Ouest Ocean Indien): 11/3/20192020 a Cyclone Tropical Intense Ambali (PDF). Liste des bulletins ZCIT (Report) (in French). Saint-Denis, Réunion: Météo-France La Réunion. 6 December 2019. Retrieved 6 December 2019.
  59. ^ Bulletin D'Analyse et de Prévision Cyclonique (Sud-Ouest Ocean Indien): 12/3/20192020 a Cyclone Tropical Ambali (PDF). Liste des bulletins ZCIT (Report) (in French). Saint-Denis, Réunion: Météo-France La Réunion. 6 December 2019. Retrieved 6 December 2019.
  60. ^ Bulletin D'Analyse et de Prévision Cyclonique (Sud-Ouest Ocean Indien): 14/3/20192020 a Forte Tempete Tropicale Ambali (PDF). Liste des bulletins ZCIT (Report) (in French). Saint-Denis, Réunion: Météo-France La Réunion. 7 December 2019. Retrieved 7 December 2019.
  61. ^ Bulletin D'Analyse et de Prévision Cyclonique (Sud-Ouest Ocean Indien): 15/3/20192020 a Forte Tempete Tropicale Ambali (PDF). Liste des bulletins ZCIT (Report) (in French). Saint-Denis, Réunion: Météo-France La Réunion. 7 December 2019. Retrieved 7 December 2019.
  62. ^ Bulletin D'Analyse et de Prévision Cyclonique (Sud-Ouest Ocean Indien): 16/3/20192020 a Tempete Tropicale Moderee Ambali (PDF). Liste des bulletins ZCIT (Report) (in French). Saint-Denis, Réunion: Météo-France La Réunion. 7 December 2019. Retrieved 7 December 2019.
  63. ^ Bulletin D'Analyse et de Prévision Cyclonique (Sud-Ouest Ocean Indien): 18/3/20192020 a Depression Residuelle Ambali (PDF). Liste des bulletins ZCIT (Report) (in French). Saint-Denis, Réunion: Météo-France La Réunion. 8 December 2019. Retrieved 8 December 2019.
  64. ^ Significant Tropical Weather Advisory for the Indian Ocean (16 December 1100 UTC) (Report). Pearl Harbor, Hawaii: United States Joint Typhoon Warning Center. 16 December 2019.
  65. ^ Significant Tropical Weather Advisory for the Indian Ocean (18 December 1800 UTC) (Report). Pearl Harbor, Hawaii: United States Joint Typhoon Warning Center. 18 December 2019.
  66. ^ Tropical Cyclone Formation Alert (Invest 96S) (Report). Pearl Harbor, Hawaii: United States Joint Typhoon Warning Center. 18 December 2019.
  67. ^ Significant Tropical Weather Advisory for the Indian Ocean (19 December 1800 UTC) (Report). Pearl Harbor, Hawaii: United States Joint Typhoon Warning Center. 19 December 2019.
  68. ^ Significant Tropical Weather Advisory for the Indian Ocean (20 December 1800 UTC) (Report). Pearl Harbor, Hawaii: United States Joint Typhoon Warning Center. 20 December 2019.
  69. ^ Bulletin Sur L'Activité Cyclonique et les Conditions Meteorologiques Tropicales Sur le Sud-Ouest de L'Ocean Indien: Le 19/12/2019 a 1200 UTC (PDF). Liste des bulletins ZCIT (Tropical Bulletin) (in French). Saint-Denis, Réunion: Météo-France La Réunion. 19 December 2019. Retrieved 28 December 2019.
  70. ^ Bulletin Sur L'Activité Cyclonique et les Conditions Meteorologiques Tropicales Sur le Sud-Ouest de L'Ocean Indien: Le 22/12/2019 a 1200 UTC (PDF). Liste des bulletins ZCIT (Tropical Bulletin) (in French). Saint-Denis, Réunion: Météo-France La Réunion. 25 December 2019. Retrieved 28 December 2019.
  71. ^ Significant Tropical Weather Advisory for the Indian Ocean (25 December 1800 UTC) (Report). Pearl Harbor, Hawaii: United States Joint Typhoon Warning Center. 25 December 2019.
  72. ^ a b "Cyclone 04-20192020". Saison en cours sur le sud-Ouest de l'Océan Indien (in French). Saint-Denis, Réunion: Météo-France La Réunion. Retrieved 28 December 2019.
  73. ^ Bulletin D'Analyse et de Prévision Cyclonique (Sud-Ouest Ocean Indien): 4/1/20192020 a Zone Perturbee 4 (PDF). Liste des bulletins ZCIT (Report) (in French). Saint-Denis, Réunion: Météo-France La Réunion. 28 December 2019. Retrieved 28 December 2019.
  74. ^ Tropical Cyclone Formation Alert (Invest 96S) (Report). Pearl Harbor, Hawaii: United States Joint Typhoon Warning Center. 28 December 2019.
  75. ^ Bulletin D'Analyse et de Prévision Cyclonique (Sud-Ouest Ocean Indien): 5/4/20192020 a Depression Tropicale 4 (PDF). Liste des bulletins ZCIT (Report) (in French). Saint-Denis, Réunion: Météo-France La Réunion. 28 December 2019. Retrieved 29 December 2019.
  76. ^ a b Bulletin D'Analyse et de Prévision Cyclonique (Sud-Ouest Ocean Indien): 6/4/20192020 a Tempete Tropicale Moderee (PDF). Liste des bulletins ZCIT (Report) (in French). Saint-Denis, Réunion: Météo-France La Réunion. 29 December 2019. Retrieved 30 December 2019.
  77. ^ Bulletin D'Analyse et de Prévision Cyclonique (Sud-Ouest Ocean Indien): 7/4/20192020 a Tempete Tropicale Moderee (PDF). Liste des bulletins ZCIT (Report) (in French). Saint-Denis, Réunion: Météo-France La Réunion. 29 December 2019. Retrieved 30 December 2019.
  78. ^ Bulletin D'Analyse et de Prévision Cyclonique (Sud-Ouest Ocean Indien): 8/4/20192020 a Tempete Tropicale Moderee (PDF). Liste des bulletins ZCIT (Report) (in French). Saint-Denis, Réunion: Météo-France La Réunion. 30 December 2019. Retrieved 30 December 2019.
  79. ^ Bulletin D'Analyse et de Prévision Cyclonique (Sud-Ouest Ocean Indien): 9/4/20192020 a Forte Tempete Tropicale Moderee (PDF). Liste des bulletins ZCIT (Report) (in French). Saint-Denis, Réunion: Météo-France La Réunion. 30 December 2019. Retrieved 30 December 2019.
  80. ^ Bulletin D'Analyse et de Prévision Cyclonique (Sud-Ouest Ocean Indien): 10/4/20192020 a Forte Tempete Tropicale Moderee (PDF). Liste des bulletins ZCIT (Report) (in French). Saint-Denis, Réunion: Météo-France La Réunion. 30 December 2019. Retrieved 30 December 2019.
  81. ^ Tropical Cyclone 05S (Sarai) Warning NR 003 (Tropical Cyclone Warning). United States Joint Typhoon Warning Center. 30 December 2019. Retrieved 31 December 2019 – via Global Disaster Alert and Coordination System.
  82. ^ Bulletin 31-12-2019 1800 UTC: CALVINIA (Bulletin CMRS). Meteo France Réunion. 31 December 2019.
  83. ^ Bulletin 01-01-2020 1800 UTC: EX-CALVINIA (Bulletin CMRS). Meteo France Réunion. 1 January 2020.
  84. ^ a b "Calvinia. Le cyclone s'intensifie et frappe l'Île Maurice, la Réunion en pré-alerte cyclonique" (in French). Ouest France. 30 December 2019. Retrieved 30 December 2019.
  85. ^ a b c "Mauritius closes main airport as cyclone Calvinia approaches". Reuters. Reuters. 30 December 2019. Retrieved 31 December 2019.
  86. ^ "Warning System". Mauritius Meteorological Services. Vacoas-Phoenix, Mauritius: Mauritius Meteorological Services. Retrieved 31 December 2019.
  87. ^ a b Bhuckory, Kamlesh (30 December 2019). "Cyclone Alert Forces Mauritius to Close Stock Exchange, Airport". Bloomberg Business. Bloomberg. Bloomberg. Retrieved 31 December 2019.
  88. ^ "Calvinia s'est rapprochée". L'Express. La Sentinelle, Ltd. La Rédaction. 30 December 2019. Retrieved 31 December 2019.
  89. ^ a b Nancoo, Hansa; Grimaud, Carole; Luckoo, Priya; St. Pierre, Patrick (31 December 2019). "Tempête tropicale: vague de colère". L'Express (in French). La Sentinelle, Ltd. Retrieved 31 December 2019.
  90. ^ a b "Tempête Calvinia : levée de la pré-alerte jaune cyclonique". Imaz Press Réunion (in French). IMAZPRESS. Imaz Press Réunion. 31 December 2019. Retrieved 31 December 2019.
  91. ^ Philippon, Laura (31 December 2019). "Calvinia s'éloigne de La Réunion, la pré-alerte cyclonique est levée : le point sur la situation" (in French). France TV. Retrieved 31 December 2019.
  92. ^ a b Bulletin Sur L'Activité Cyclonique et les Conditions Meteorologiques Tropicales Sur le Sud-Ouest de L'Ocean Indien: Le 11/01/2020 a 1200 UTC (PDF). Liste des bulletins ZCIT (Tropical Bulletin) (in French). Saint-Denis, Réunion: Météo-France La Réunion. 11 January 2020. Retrieved 21 January 2020.
  93. ^ Bulletin Sur L'Activité Cyclonique et les Conditions Meteorologiques Tropicales Sur le Sud-Ouest de L'Ocean Indien: Le 15/01/2020 a 1200 UTC (PDF). Liste des bulletins ZCIT (Tropical Bulletin) (in French). Saint-Denis, Réunion: Météo-France La Réunion. 15 January 2020. Retrieved 21 January 2020.
  94. ^ Bulletin Sur L'Activité Cyclonique et les Conditions Meteorologiques Tropicales Sur le Sud-Ouest de L'Ocean Indien: Le 17/01/2020 a 1200 UTC (PDF). Liste des bulletins ZCIT (Tropical Bulletin) (in French). Saint-Denis, Réunion: Météo-France La Réunion. 17 January 2020. Retrieved 21 January 2020.
  95. ^ a b Bulletin Sur L'Activité Cyclonique et les Conditions Meteorologiques Tropicales Sur le Sud-Ouest de L'Ocean Indien: Le 18/01/2020 a 1200 UTC (PDF). Liste des bulletins ZCIT (Tropical Bulletin) (in French). Saint-Denis, Réunion: Météo-France La Réunion. 18 January 2020. Retrieved 21 January 2020.
  96. ^ a b c "Cyclone 05-20192020". Saison en cours sur le sud-Ouest de l'Océan Indien (in French). Saint-Denis, Réunion: Météo-France La Réunion. Retrieved 21 January 2020.
  97. ^ Bulletin D'Analyse et de Prévision Cyclonique (Sud-Ouest Ocean Indien): 1/5/20192020 a Zone Perturbée 5 (PDF). Liste des bulletins ZCIT (Report) (in French). Saint-Denis, Réunion: Météo-France La Réunion. 21 January 2020. Retrieved 21 January 2020.
  98. ^ a b Bulletin D'Analyse et de Prévision Cyclonique (Sud-Ouest Ocean Indien): 2/5/20192020 a Zone Perturbée 5 (PDF). Liste des bulletins ZCIT (Report) (in French). Saint-Denis, Réunion: Météo-France La Réunion. 22 January 2020. Retrieved 22 January 2020.
  99. ^ Bulletin D'Analyse et de Prévision Cyclonique (Sud-Ouest Ocean Indien): 3/5/20192020 a Perturbation Tropicale 5 (PDF). Liste des bulletins ZCIT (Report) (in French). Saint-Denis, Réunion: Météo-France La Réunion. 22 January 2020. Retrieved 22 January 2020.
  100. ^ Tropical Cyclone 09S (Nine) Warning NR 001 (Tropical Cyclone Warning). United States Joint Typhoon Warning Center. 22 January 2020. Retrieved 22 January 2019 – via Global Disaster Alert and Coordination System.
  101. ^ Bulletin D'Analyse et de Prévision Cyclonique (Sud-Ouest Ocean Indien): 4/5/20192020 a Perturbation Tropicale 5 (PDF). Liste des bulletins ZCIT (Report) (in French). Saint-Denis, Réunion: Météo-France La Réunion. 23 January 2020. Retrieved 22 January 2020.
  102. ^ Bulletin D'Analyse et de Prévision Cyclonique (Sud-Ouest Ocean Indien): 5/5/20192020 a Perturbation Tropicale 5 (PDF). Liste des bulletins ZCIT (Report) (in French). Saint-Denis, Réunion: Météo-France La Réunion. 23 January 2020. Retrieved 23 January 2020.
  103. ^ Tropical Cyclone 09S (Nine) Warning NR 003 (Tropical Cyclone Warning). United States Joint Typhoon Warning Center. 23 January 2020. Retrieved 23 January 2019 – via Global Disaster Alert and Coordination System.
  104. ^ Bulletin Sur L'Activité Cyclonique et les Conditions Meteorologiques Tropicales Sur le Sud-Ouest de L'Ocean Indien: Le 23/01/2020 a 1200 UTC (PDF). Liste des bulletins ZCIT (Tropical Bulletin) (in French). Saint-Denis, Réunion: Météo-France La Réunion. 23 January 2020. Retrieved 23 January 2020.
  105. ^ Bulletin Sur L'Activité Cyclonique et les Conditions Meteorologiques Tropicales Sur le Sud-Ouest de L'Ocean Indien: Le 19/01/2020 a 1200 UTC (PDF). Liste des bulletins ZCIT (Tropical Bulletin) (in French). Saint-Denis, Réunion: Météo-France La Réunion. 19 January 2020. Retrieved 23 January 2020.
  106. ^ a b c Bulletin Sur L'Activité Cyclonique et les Conditions Meteorologiques Tropicales Sur le Sud-Ouest de L'Ocean Indien: Le 22/01/2020 a 1200 UTC (PDF). Liste des bulletins ZCIT (Tropical Bulletin) (in French). Saint-Denis, Réunion: Météo-France La Réunion. 22 January 2020. Retrieved 23 January 2020.
  107. ^ Bulletin D'Analyse et de Prévision Cyclonique (Sud-Ouest Ocean Indien): 2/6/20192020 a Perturbation Tropicale 6 (PDF). Liste des bulletins CMRS (Report) (in French). Saint-Denis, Réunion: Météo-France La Réunion. 23 January 2020. Retrieved 23 January 2020.
  108. ^ Bulletin D'Analyse et de Prévision Cyclonique (Sud-Ouest Ocean Indien): 4/6/20192020 a Perturbation Tropicale 6 (PDF). Liste des bulletins ZCIT (Report) (in French). Saint-Denis, Réunion: Météo-France La Réunion. 23 January 2020. Retrieved 23 January 2020.
  109. ^ Bulletin D'Analyse et de Prévision Cyclonique (Sud-Ouest Ocean Indien): 6/6/20192020 a Perturbation Tropicale 6 (PDF). Liste des bulletins ZCIT (Report) (in French). Saint-Denis, Réunion: Météo-France La Réunion. 24 January 2020. Retrieved 24 January 2020.
  110. ^ Bulletin D'Analyse et de Prévision Cyclonique (Sud-Ouest Ocean Indien): 7/6/20192020 a Tempete Tropicale Moderee 6 (Diane) (PDF). Liste des bulletins CMRS (Report) (in French). Saint-Denis, Réunion: Météo-France La Réunion. 24 January 2020. Retrieved 24 January 2020.
  111. ^ Bulletin D'Analyse et de Prévision Cyclonique (Sud-Ouest Ocean Indien): 10/6/20192020 a Tempete Tropicale Moderee 6 (Diane) (PDF). Liste des bulletins CMRS (Report) (in French). Saint-Denis, Réunion: Météo-France La Réunion. 25 January 2020. Retrieved 24 January 2020.
  112. ^ Bulletin D'Analyse et de Prévision Cyclonique (Sud-Ouest Ocean Indien): 13/6/20192020 a Tempete Tropicale Moderee 6 (Diane) (PDF). Liste des bulletins CMRS (Report) (in French). Saint-Denis, Réunion: Météo-France La Réunion. 25 January 2020. Retrieved 26 January 2020.
  113. ^ Bulletin D'Analyse et de Prévision Cyclonique (Sud-Ouest Ocean Indien): 14/6/20192020 a Forte Tempete Tropicale 6 (Diane) (PDF). Liste des bulletins CMRS (Report) (in French). Saint-Denis, Réunion: Météo-France La Réunion. 26 January 2020. Retrieved 26 January 2020.
  114. ^ a b Bulletin D'Analyse et de Prévision Cyclonique (Sud-Ouest Ocean Indien): 16/6/20192020 a Depression Post-Tropicale 6 (Diane) (PDF). Liste des bulletins CMRS (Report) (in French). Saint-Denis, Réunion: Météo-France La Réunion. 26 January 2020. Retrieved 26 January 2020.
  115. ^ "Ex-Esami". Saison en cours sur le sud-Ouest de l'Océan Indien (in French). Saint-Denis, Réunion: Météo-France La Réunion. Retrieved 30 January 2019.
  116. ^ Kelly, Maura (24 January 2020). "Tropical downpours claim over 20 lives and devastate land throughout northwestern Madagascar". AccuWeather. AccuWeather, Inc. Retrieved 24 January 2020.
  117. ^ a b c d Madagascar Heavy rains and floods Flash Update No. 1 (As of 26 January 2020). ReliefWeb (Report). United Nations Office for the Coordination of Humanitarian AffairsMadagascar Heavy rains and floods Flash Update No. 1 (As of 26 January 2020). 26 January 2020. Retrieved 26 January 2020 – via ReliefWeb.
  118. ^ a b "Dégâts des précipitations – Treize morts, dix-neuf disparus". L'Express de Madagascar (in French). L'Express de Madagascar. 24 January 2020. Retrieved 24 January 2020.
  119. ^ "Pré-alerte jaune cyclonique « Système n°6 » à partir de 10h" (in French). France TV. 23 January 2020. Retrieved 24 January 2020.
  120. ^ a b Philippon, Laura (23 January 2020). "La Réunion placée en alerte cyclonique orange depuis 22h" (in French). France TV. Retrieved 24 January 2020.
  121. ^ "Le Sud sous l'eau suite au passage de Diane" (in French). Clicanoo.re. Clicanoo. 26 January 2020. Retrieved 26 January 2020.
  122. ^ Philippon, Laura (24 January 2020). "Routes, trafic aérien, université, centres d'hébergement : suivez l'évolution de la tempête tropicale Diane près de La Réunion [DIRECT]" (in French). France TV. Retrieved 24 January 2020.
  123. ^ "Tempête tropicale modérée Diane: Maurice passe en alerte 3". L'Express (in French). La Sentinelle Ltd. La Rédaction. 24 January 2020. Retrieved 24 January 2020.
  124. ^ a b Flore, Eileen; Lepoigneur, Florian (25 January 2020). "Diane : l'alerte levée mais toujours aucun vol sur Rodrigues ce samedi". L'Express (in French). La Sentinelle Ltd. Retrieved 25 January 2020.
  125. ^ "Tempête tropicale Diane : plus de mille sinistrés se rendent dans des centres de refuge" (in French). Planet FM Radio. 25 January 2020. Retrieved 26 January 2020.
  126. ^ Philippon, Laura (24 January 2020). "Le trafic aérien perturbé à La Réunion par la tempête tropicale Diane" (in French). France TV. Retrieved 24 January 2020.
  127. ^ Bulletin Sur L'Activité Cyclonique et les Conditions Meteorologiques Tropicales Sur le Sud-Ouest de L'Ocean Indien: Le 16/01/2020 a 1200 UTC (PDF). Liste des bulletins ZCIT (Tropical Bulletin) (in French). Saint-Denis, Réunion: Météo-France La Réunion. 16 January 2020. Retrieved 24 January 2020.
  128. ^ LH (22 January 2020). "Une dépression tropicale venue de Madagascar attendue pour vendredi soir" (in French). France TV. Retrieved 24 January 2020.
  129. ^ Bulletin Sur L'Activité Cyclonique et les Conditions Meteorologiques Tropicales Sur le Sud-Ouest de L'Ocean Indien: Le 21/01/2020 a 1200 UTC (PDF). Liste des bulletins ZCIT (Tropical Bulletin) (in French). Saint-Denis, Réunion: Météo-France La Réunion. 21 January 2020. Retrieved 23 January 2020.
  130. ^ a b Bulletin D'Analyse et de Prévision Cyclonique (Sud-Ouest Ocean Indien): 1/7/20192020 a Perturbation Tropicale 7 (PDF). Liste des bulletins CMRS (Report) (in French). Saint-Denis, Réunion: Météo-France La Réunion. 24 January 2020. Retrieved 24 January 2020.
  131. ^ a b "Ex-Esami". Saison en cours sur le sud-Ouest de l'Océan Indien (in French). Saint-Denis, Réunion: Météo-France La Réunion. Retrieved 24 January 2019.
  132. ^ a b Bulletin D'Analyse et de Prévision Cyclonique (Sud-Ouest Ocean Indien): 2/7/20192020 a Depression Tropicale 7 (PDF). Liste des bulletins CMRS (Report) (in French). Saint-Denis, Réunion: Météo-France La Réunion. 24 January 2020. Retrieved 24 January 2020.
  133. ^ Tropical Cyclone 11S (Eleven) Warning NR 001 (Tropical Cyclone Warning). United States Joint Typhoon Warning Center. 24 January 2020. Retrieved 25 January 2020 – via Global Disaster Alert and Coordination System.
  134. ^ Bulletin D'Analyse et de Prévision Cyclonique (Sud-Ouest Ocean Indien): 4/7/20192020 a Tempete Tropicale Moderee Esami (PDF). Liste des bulletins CMRS (Report) (in French). Saint-Denis, Réunion: Météo-France La Réunion. 25 January 2020. Retrieved 25 January 2020.
  135. ^ Bulletin D'Analyse et de Prévision Cyclonique (Sud-Ouest Ocean Indien): 5/7/20192020 a Tempete Tropicale Moderee Esami (PDF). Liste des bulletins CMRS (Report) (in French). Saint-Denis, Réunion: Météo-France La Réunion. 25 January 2020. Retrieved 25 January 2020.
  136. ^ Bulletin D'Analyse et de Prévision Cyclonique (Sud-Ouest Ocean Indien): 6/7/20192020 a Tempete Tropicale Moderee Esami (PDF). Liste des bulletins CMRS (Report) (in French). Saint-Denis, Réunion: Météo-France La Réunion. 25 January 2020. Retrieved 25 January 2020.
  137. ^ Bulletin D'Analyse et de Prévision Cyclonique (Sud-Ouest Ocean Indien): 7/7/20192020 a Tempete Tropicale Moderee Esami (PDF). Liste des bulletins CMRS (Report) (in French). Saint-Denis, Réunion: Météo-France La Réunion. 25 January 2020. Retrieved 25 January 2020.
  138. ^ Bulletin D'Analyse et de Prévision Cyclonique (Sud-Ouest Ocean Indien): 10/7/20192020 a Depression Post-Tropicale 7 (Ex-Esami) (PDF). Liste des bulletins CMRS (Report) (in French). Saint-Denis, Réunion: Météo-France La Réunion. 26 January 2020. Retrieved 26 January 2020.
  139. ^ Regional Association I Tropical Cyclone Committee (2016). "Tropical Cyclone Operational Plan for the South-West Indian Ocean" (PDF). World Meteorological Organization. Retrieved 5 October 2016.

External links

source: https://en.wikipedia.org/w/index.php?title=2019%E2%80%9320_South-West_Indian_Ocean_cyclone_season&diff=prev&oldid=939295956