User:Jason Rees/Cyclone Megan

Australian region cyclone in 2024 From Wikipedia, the free encyclopedia

Severe Tropical Cyclone Megan was

Formed13 March 2024 (2024-03-13)
Remnant low18 March 2024
Dissipated21 March 2024 (2024-03-21)
Highestwinds165 km/h (105 mph)
Quick facts Meteorological history, Formed ...
Severe Tropical Cyclone Megan
Cyclone Megan in the Gulf of Carpentaria on 17 March
Meteorological history
Formed13 March 2024 (2024-03-13)
Remnant low18 March 2024
Dissipated21 March 2024 (2024-03-21)
Category 4 severe tropical cyclone
10-minute sustained (BOM)
Highest winds165 km/h (105 mph)
Highest gusts230 km/h (145 mph)
Lowest pressure950 hPa (mbar); 28.05 inHg
Category 2-equivalent tropical cyclone
1-minute sustained (SSHWS/JTWC)
Highest winds165 km/h (105 mph)
Lowest pressure960 hPa (mbar); 28.35 inHg
Overall effects
CasualtiesNone
DamageUnknown
Areas affectedNorthern Territory
IBTrACS

Part of the 2023–24 Australian region cyclone season
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Meteorological history

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

On 4 March, the Bureau of Meteorology (BoM) noted the formation of a tropical low over south of Indonesia's Sumatra or Java, designating it as 09U.[1] Over the next couple of days, the BoM reported that it was developing over the western Timor Sea within the trough.[2] Analysis from the JTWC indicated that the disturbance was in a favourable environment for development—featuring sea surface temperatures of 29 to 31 °C (84 to 88 °F), and low to moderate wind shear.[3] By 15 March, the JTWC issued a TCFA on the tropical low and warned that there was a high potential for the disturbance to develop into a tropical cyclone.[4] The tropical low moved into the Gulf of Carpentaria,[5] whereupon it gradually organised and began to intensify.[6] The same day, the JTWC upgraded the system to Tropical Cyclone 19S, approximately 367 km (230 mi) east of Darwin, Northern Territory.[7] Later the next day, the BoM reported that the tropical low had developed into a Category 1 tropical cyclone and assigned the name Megan.[8] Rapid intensification began the same day, with Megan reaching Category 2 tropical cyclone.[9] The BoM upgraded the storm to a Category 4 severe tropical cyclone at 12:00 UTC,[10] Operationally, the BoM classified Megan a Category 3 severe tropical cyclone with winds of 155 km/h (100 mph), but during post-cyclone reanalysis concluded a peak wind speed of 165 km/h (105 mph) based on Synthetic-aperture radar measurements.[11][12] Gradually approaching the southwestern coast of the Gulf of Carpentaria,[13] the JTWC indicated that one-minute sustained winds had reached 185 km/h (115 mph), equivalent to a Category 3 major hurricane on the SSHWS.[14] Megan made landfall on the southwestern Gulf of Carpentaria coast just after 06:00 UTC on 18 March.[15] Shortly after the landfall, the JTWC discontinued warnings on the system.[16] After moving ashore, the cyclone turned generally southeast and tracked along the inland of Borroloola.[17][18] The following day, the system was downgraded to a tropical low by the BoM as it approached the inland coast of the Gulf of Carpentaria.[19] Ex-Tropical Cyclone Megan moved inland, tracking across the Northern Territory, before the BoM stopped monitoring the low on 21 March.[20][21]

Preparations

A planned evacuation in Borroloola was cancelled as planes were not able to land.[22]

Impact

Groote Eylandt got 600 mm (25 in) of rain.[22]

Aftermath

References

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