Severe weather warning cancelled for south-west WA as rain brings fire relief SunSunday 7 updated SunSunday 7 A satellite map shows the weather system off the south-west corner of Western Australia. ( Print text only Cancel Heavy rain has extinguished the fire threat in Western Australia's south, but the wet weather is creating other challenges for the state's emergency services. Key points: Rain helped to contain fires in the south-west on Saturday night The low pressure system also caused flooding in and around Carnarvon Strong winds and rain battered areas south of Mandurah throughout Sunday as a low pressure system moved down the coast.