West Australian pastoralists have faced severe flooding after ex-Tropical Cyclone Narelle wreaked havoc in one of the state's most important food-producing regions.

Rio Tinto swiftly resumes Pilbara iron ore operations after Cyclone Narelle, highlighting its resilient workforce and infrastructure.

Eerie scenes have captured the extent of Tropical Cyclone Narelle’s arrival in Western Australia, before it left a trail of destruction in its path.

In the popular tourist destination, it appears the category four cyclone has chewed up and spat out whole sections of the Ningaloo Reef onto dry land.

March 30 () - Rio Tinto said on Monday operations at three of its four Pilbara ‌iron ore port terminals have resumed after ‌Tropical Cyclone Narelle swept through Western Australia's Pilbara region, disrupting shipments ​but leaving its annual guidance unchanged.

Track the path of Tropical Cyclone Narelle here as it approaches the Western Australia coast

Authorities say motorists are repeatedly ignoring warnings not to drive in floodwaters in WA's north in the wake of Cyclone Narelle, with 20 people having to be rescued.