Tropical Cyclone Narelle has weakened to a category three storm as it tracks south-west along the coast of WA.
The Bureau of Meteorology said Narelle was about 300-400km off the coast of northern WA at 5am today.
The storm looks likely to continue its track parallel to the coastline and it's unlikely it will make landfall, but people living in coastal and island communities between Onslow and Coral Bay are being urged to take precautions.
If Narelle does moves closer to the coast, gales with wind gusts of up to 100km/h are expected to hit between Onslow and Cape Cuvier on Sunday and may extend south to Carnarvon later in the day.
Tides along the west Pilbara coast are also likely to rise above the normal high tide mark, with flooding of low lying areas possible.
The bureau said higher than normal tides should extend along the west coast this morning and continue into the beginning of the week.WA police said today that no emergency incidents had been reported as a result of Cyclone Narelle.
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