PerthNow | BOM forecasting thunderstorms and big swells for Perth, South-West PerthNow WEST Australians have been warned to batten down the hatches and stay away from the ocean this weekend. The Bureau of Meteorology is forecasting a whopping swell for the South-West, expected to reach 4m on Saturday and peak at as much as 7m on ... Wet weather to hit Perth this weekend Rain on the way: Mandurah set for wet weekend Mandurah to be drenched by heavy rainfall this weekend |