High Quality Content by WIKIPEDIA articles! The 1992 Queensland storms were a series of thunderstorms which struck southeastern Queensland, Australia on 29 November 1992. The storms produced strong winds, flash flooding and large hailstones in the region, including the capital city of Brisbane. The storms also spawned two of the most powerful tornadoes recorded in Australia, including the only Australian tornado to be given an `F4` classification on the Fujita scale.