Cyclone Damien Expected To Intensify To Category 4 When It Hits WA

The threat of Tropical Cyclone Damien approaching Western Australia's northern coast has prompted ports to be cleared as residents bunker down before it's expected to make landfall on Saturday.

Cyclone Damien is estimated to be 295 kilometres north of Karratha, and is moving southwest at 7 kilometres per hour.

The category three cyclone has sustained winds of 120 kilometres per hour near its centre, with gusts to 165 kilometres per hour.

It is expected to intensify to a category four cyclone when it hits the Pilbara coast on Saturday.

Tropical Cyclone Damien is estimated to be 300km northwest of Port Hedland, and is moving southwest at 11km/h.

The Pilbara Ports Authority says ports in Ashburton and Port Hedland were being cleared, while the Port of Dampier is in the process of shutting down.

Port Hedland is the world's largest bulk export terminal, with iron ore miners BHP and Fortescue Metals Group among the key users.

"We're expecting some damage to infrastructure in the Pilbara area, particularly around Karratha and Roeburne," Department of Fire and Emergency Services spokesman Brad Delavale said.

"We do expect the people that live in (affected) areas to take the relevant steps to ensure that they are safe."

The Bureau of Meteorology warns gales are forecast to develop between Wallal Downs and Mardie, including Port Hedland and Karratha, from as early as Friday evening.

Very destructive winds, with gusts to 230km/h, are expected near the cyclone centre as it crosses the coast on Saturday.



Flash-Flood Warning As Week-Long Drenching Set To Soak East Coast

A deluge of rain has started falling in NSW and Queensland, but authorities are concerned heavier downpours in the north could trigger flash flooding.

Residents between Dampier and Pardoo Roadhouse have also been warned of the potential for a very dangerous storm tide.

Heavy rain is also likely to cause flooding in the Pilbara and Gascoyne regions as the cyclone moves inland.

A yellow alert is in place for people in or near Port Hedland to Mardie and south to Millstream, including Port Hedland, Whim Creek, Point Samson, Wickham, Roebourne, Karratha, Dampier and Barrow Island.

Residents have been warned to prepare for cyclonic weather and to move to shelter.

A blue alert is in place for people in or near Wallal Downs to Port Hedland and Mardie to Onslow, but not including Onslow.

It includes the towns of Pannawonica, Tom Price, Paraburdoo, Nullagine and Marble Bar.

Those residents have been warned to prepare for cyclonic weather and organise an emergency pack including a first aid kit, torch, portable radio, spare batteries, food and water.

Tropical Cyclone Damien is the third cyclone of the season off the WA coast.