A TROPICAL cyclone is developing off Western Australia's north coast and could impact communities in the next few days.
Residents in areas from Whim Creek to Coral Bay in the Pilbara and Midwest Gascoyne regions have been warned to prepare their homes and family for severe storms, perthnow.com.au reports.
This includes people in Whim Creek, Dampier, Karratha, Onslow, Exmouth and surrounding areas.
Tropical Cyclone Narelle is now 760km north of Karratha and 890km north north-east of Exmouth, and is moving south-west at 15km per hour.
The Bureau of Meteorology said the category three cyclone was expected to intensify to category four early this afternoon as it moved towards Northwest Cape.
"Gales with gusts to 100 kilometres per hour are expected to develop in coastal areas between Whim Creek and Onslow including the Karratha area on Friday morning, then extend west to Exmouth and Coral Bay later on Friday or early Saturday,'' the bureau said.
Thunderstorm activity will increase around the Pilbara coast on Friday with isolated heavy rainfall possible, while winds are likely to increase further during Saturday around the west Pilbara coast.
The State Emergency Service advises residents to review their family cyclone plan and know the community cyclone alert system.
Residents have also been reminded to organise an emergency kit with a portable battery operated radio, torch, spare batteries and first aid kit.
Full report, perthnow.com.au