Residents across Karratha and surrounding parts of the Pilbara have been urged to take shelter, with Tropical Cyclone Mitchell a chance to severely intensify as it approaches the coast. The system is moving south-west along the Pilbara coast, and is currently at category two strength. A cyclone Emergency Warning was issued for Karratha, and other communities between Mardie and Whim Creek, just after 3pm on Saturday. In means residents are now required to shelter indoors until the alert is lifted.