For offical DFES Alerts - visit the Department of Fire and Emergency services:
http://www.dfes.wa.gov.au/alerts/Pages/default.aspx
http://www.dfes.wa.gov.au/alerts/Pages/alertsmap.aspx

The fire hotspots shown on the map below are derived from the Australian Government Geoscience Sentinel system. This is not an offical map - so please use with caution and only as a rough guide. You will need to agree to the disclaimer to see the map.

Another link that might come in handy is Google Crisis maps -  https://google.org/crisismap/australia. But at the time of writing this page, WA data wasn't shown.

NEWS...