Kalgoorlie-Boulder sits in southern or western Australia, where a Mediterranean-to-arid climate produces mild, wetter winters and long, dry summers, with the region’s biggest flood risk coming from occasional intense summer thunderstorms or ex-tropical cyclone remnants.
In Western Australia’s arid Goldfields region, the city’s dry climate means rare intense storms can produce flash flooding well out of proportion to typical rainfall. Because much of the region normally receives modest rainfall, a rare intense storm can overwhelm drainage systems built for a drier norm, and radar helps track these less-frequent but potentially serious events. Learn more: Flash Flood Warning Signs on Radar · Open the full Rain Map