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The transition to polarimetric (dual-polarised) radars began in 2017 with the upgrade of 4 Meteor 1500 radars located in Melbourne, Brisbane, Adelaide, and Sydney. [7] The network has further been enhanced through the installation of 8 new polarimetric Meteor 735 radars across WA, [8] NSW [9] & Victoria, [10] and two polarimetric WRM200 radars [11] manufactured by Vaisala, one to replace the ...
The Bureau of Meteorology (BOM or BoM) is an executive agency of the Australian Government responsible for providing weather services to Australia and surrounding areas. It was established in 1906 under the Meteorology Act, and brought together the state meteorological services that existed before then. [ 3 ]
The Bureau of Meteorology noted that "Kalgoorlie Doppler Radar image at 0725 UTC (1525 AWST) showed a pixel which had an inbound velocity of around 110 km/h at a height of ~487 metres above the ground (aliased: 22.5 m/s outbound)" in the tornado record for this event. [181] F0 Kurnell Tornado: 16 December 2015: New South Wales: 1: 3 injuries
The Bureau of Meteorology noted that the environment had become unfavourable for further intensification; [138] however, contradicting this, the Joint Typhoon Warning Center forecast a gradual strengthening to tropical cyclone intensity over the following days in a supportive environment for cyclogenesis. [139]
On 14 October 2021, multiple severe thunderstorm formed over the blue mountains and quickly moved east towards Sydney. One particular storm boasted an impressive hook echo on radar, and doppler winds indicates the presence of a broad mesocyclone. As a result, the Bureau of Meteorology issued a relatively rare tornado warning.
The BoM upgraded the storm to a Category 4 severe tropical cyclone at 12:00 UTC, [144] 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.
The Bureau of Meteorology radar picked up a series of cells to the north-west of Brisbane, the capital of Queensland, and the data suggested that there was a possibility of large hail. The Bureau immediately issued a Severe Thunderstorm Warning for the coastal region between Brisbane and the Sunshine Coast, 100 km to the north. [2] [8]
The 2024–25 Australian region cyclone season is an ongoing weather event in the southern hemisphere. The season has officially started on 1 November 2024 and will end on 30 April 2025, however, a tropical cyclone could form at any time between 1 July 2024 and 30 June 2025 and would count towards the season total.