Outflow boundary a downburst. "Gustnadoes", short-lived vertical circulations near ground level, can be spawned by outflow boundaries. Gust fronts create low-level wind shear which can be hazardous to planes when they takeoff or land. Flying insects are swept along by the prevailing winds. As such, fine line patterns within weather radar imagery, associated with converging winds, are dominated by insect returns. At the surface, clouds of dust can be raised by outflow boundaries. If squall lines form over arid regions, a duststorm known as a haboob can result from the high winds picking up dust in their wake from the desert floor.
Great Sandy Desert the Great Sandy Desert is dominated by spinifex. Animals occurring in the region include feral camels, dingoes, goannas (including the large perentie) and numerous species of lizards and birds. Other animal inhabitants include bilbies, mulgara, marsupial moles, rufous hare-wallabies, thorny devils, bearded dragons, and red kangaroos. Some of the bird-life found within the desert include the rare Alexandra's parrot, the mulga parrot and the scarlet-chested parrot. Great Sandy Desert The Great Sandy Desert is an interim Australian bioregion, located in the North West of Western Australia straddling the Pilbara and southern Kimberley regions. It is the second largest desert in