User:Es204L/Cyclone Ambali

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Very Intense Tropical Cyclone Ambali
Very intense tropical cyclone (SWIO scale)
Category 5 tropical cyclone (SSHWS)
Ambali on December 6, shortly after peak intensity
Formed3 December 2019
DissipatedCurrently active
Highest winds10-minute sustained: 220 km/h (140 mph)
1-minute sustained: 260 km/h (160 mph)
Gusts: 335 km/h (205 mph)
Lowest pressure930 hPa (mbar); 27.46 inHg
FatalitiesNone reported
DamageNone
Areas affectedNone
Part of the 2019–20 South-West Indian Ocean cyclone season

Very Intense Tropical Cyclone Ambali is a currently powerful tropical cyclone, the first named storm, the first very intense tropical cyclone from 2019–20 South-West Indian Ocean cyclone season.

Meteorological history[edit]

Map plotting the storm's track and intensity, according to the Saffir–Simpson scale
Map key
  Tropical depression (≤38 mph, ≤62 km/h)
  Tropical storm (39–73 mph, 63–118 km/h)
  Category 1 (74–95 mph, 119–153 km/h)
  Category 2 (96–110 mph, 154–177 km/h)
  Category 3 (111–129 mph, 178–208 km/h)
  Category 4 (130–156 mph, 209–251 km/h)
  Category 5 (≥157 mph, ≥252 km/h)
  Unknown
Storm type
triangle Extratropical cyclone, remnant low, tropical disturbance, or monsoon depression

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.[1] The system organized quickly, attaining formative rainbands around a coalescing center of circulation on 3 December.[2] 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 center.[3][4] Steered by a high-pressure area centered over the southern Indian Ocean, the tropical depression moved south.[5] The quick organization continued into 5 December, and MFR named the system Moderate Tropical Storm Ambali following the emergence of a central dense overcast.[6] It then intensified into a Severe Tropical Storm a few hours later. Buoyed by a highly favorable environment with waters almost as warm as 30°C (86°F), explosive intensification ensued, accompanied by the formation of an eye.[7][8] At 18:00 UTC on 5 December, MFR upgraded Ambali to intense tropical cyclone status following a sharp 75 km/h (47 mph) increase in the storm's winds in 3 hours, jumping from tropical-storm intensity to Category 3 hurricane-equivalent strength with 1-minute sustained winds up to 115 mph (185 km/h). [3] By 00:00 UTC on 6 December, the cyclone was upgraded to a very intense tropical cyclone, the first in the basin since Fantala in 2016.[citation needed]

Current storm information[edit]

Records[edit]

See also[edit]

References[edit]

  1. ^ 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.
  2. ^ 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.
  3. ^ a b "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.
  4. ^ 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.
  5. ^ 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.
  6. ^ 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.
  7. ^ 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.
  8. ^ 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.

External links[edit]