Cyclone Nathan is forecast to strike Cooktown and Hope Vale on Friday . The storm is expected to be a category four system with 260km/h winds . A man walks past the sea wall at the entrance of the harbour in Sydney Harbour during heavy rain from Tropical Cyclone Nathan. Residents have been urged to stay home or inside cyclone shelters .
Cyclone Nathan is forecast to strike Cooktown and Hope Vale on Friday . The storm is expected to be a category four system with 260km/h winds . 72 police , 50 SES staff and more than 400 Energy workers are on hand . Residents have been urged to stay home or inside cyclone shelters .