A tropical low is forecast to intensify over northern Western Australia, and a trough will extend from north-west to south-east across the state. Whether or not a tropical cyclone develops, the effects of these low pressure systems will be felt as far away as Melbourne and Hobart.In 2009 summer heatwave, Tropical Cyclone Dominic hit the Western Australian coastline, causing minor structural damage and bringing down power lines. Flooding of a river resulted in significant crop damage caused train accident near Kalgoorlie.