Hail with a diameter of 4 to 5cm along with heavy rainfall of up to 89mm in 1 hour was also reported. The Kurnell Automatic Weather Station was directly impacted by the tornado and recorded a maximum wind gust of 213 km/h. Extensive damage resulted in an estimated $206m AUD in payments by the insurance industry.
The deviant motion to the left of the deep layer mean wind directed the storm onshore as an EF2 tornado developed which subsequently impacted the Sydney suburb of Kurnell located just 5km south of Australia’s busiest aviation terminal, Sydney International Airport. On the morning of Wednesday 16th December 2015, a supercell thunderstorm spawned off the New South Wales coast.
#WEATHER IMAGES FOR WEATHERDESK VERIFICATION#
A daily verification product focussing on continual forecast improvement through verification completed the process. Forecasts of thunder, large hail, damaging winds, heavy rainfall and tornado were provided nationally. A complete forecast process for convection forecasting was trialled by the EWD during the 2015-2016 Australian Severe Weather Season. In response to the review the Australian Extreme Weather Desk (EWD) was recently established with the aim to provide “a national focus for extreme weather intelligence” and “enhanced severe weather capacity during periods of sustained demand”. An independent review of the Australian Bureau of Meteorology identified the need for another layer of capability to respond to extreme weather events.
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