Some big hailstones in that lot. I don't recall that event as I was in the middle of the cancer crap at the time, but here's the QLD BoM summary - massive rainfalls then big hail - what a day !
On the 9th thunderstorms produced very heavy rainfall during the early morning between Gladstone and Burnett Heads, with several falls of 200-300mm recorded. A severe hailstorm struck Gladstone during the late afternoon, with hailstones larger than cricket balls reported by several sources. Part of the roof of the Kin Kora Shopping Centre collapsed and the centre evacuated, 120 homes were damaged and car yards were also seriously affected. Damage was estimated at 1.5 to 2 million dollars. Elsewhere golf ball sized hail was reported from the Atherton area in the North Tropical Coast and Tablelands district during the afternoon, while wind gusts from storms unroofed a house in the Charters Towers area during the evening.