Roofs have been damaged, trees have fallen and many residents remain without power as Tropical Cyclone Christine tears through Western Australia's Pilbara region.

Christine crossed the coast between Whim Creek and Roebourne about midnight (WST) as a category three cyclone, but has now been downgraded to a category two.

A red alert remains in place for people in or near the coastal areas between De Grey and Mardie, and extending inland to Tom Price and Paraburdoo.

This includes Port Hedland, South Hedland, Whim Creek, Roebourne, Point Samson, Wickham, Karratha and Dampier.

'There is a threat to lives and homes. You are in danger and need to act immediately,' the Department of Fire and Emergency Services (DFES) warned.

The Department for Child Protection and Family Support has set up several relocation points including the JD Hardie Centre in South Hedland, Karratha Leisureplex, the Marble Bar civic centre, Tom Price High School gym and Ashburton Hall in Paraburdoo.

People between Mardie and Onslow are advised that the threat of strong winds is no longer expected.

A yellow alert is current for people in or near the inland communities of Marble Bar and Pannawonica.

Residents have been warned to get ready to take shelter as the cyclone approaches.

A blue alert remains for people in or near the coastal areas between Mardie and Onslow, and the inland area from Marble Bar to Newman, and between the Collier Ranges and Three Rivers.

Read this article:

Cyclone Christine heads inland