The small WA communities of Windy Harbour and Northcliffe are battling challenging conditions and fatigue from a bushfire that has threatened both towns for more than a month.

Windy Harbour Road remains closed to traffic north and south, with Department of Biodiversity, Conservation and Attractions (DBCA) officials having urged locals on Tuesday to act immediately.

* A Smoke Alert has been issued for people in the Lower South West including WINDY HARBOUR, NORTHCLIFFE, MANJIMUP, TONEBRIDGE, DENMARK and surrounding areas in LOWER SOUTH WEST and GREAT SOUTHERN ...