From Pilbara Ports:
Due to a Tropical Low tracking towards the Pilbara region, Pilbara Ports Authority has begun evacuation procedures at both the ports of Port Hedland and Dampier.
Anchorage evacuation commenced Monday morning (19 January 2015) at both ports. Both ports expect berth evacuation to be complete by Monday evening (19 January 2015).
It looks pretty minor, disruption should be brief: