Perth Now | Weather warning for Mandurah, South West Perth Now RESIDENTS in Mandurah and much of WA's South West have been warned to brace for damaging 100km/h winds as a cold front sweeps in later today. The WA Bureau of Meteorology issued the severe weather warning at 12.30pm, saying in a Twitter post ... Severe weather warning for Perth and the South West Severe weather warning issued for Mandurah, Bunbury |