A low pressure system will deepen off the southern New South wales coast afternoon onwards on October 11, before deepening further and moving north towards Sydney, the Central Coast and the Hunter. The main moments of concern would be Thursday evening and Friday morning, before the system moves away to the east later on Friday.
The winds are expected to blow at an average speed of 60km/h with peak gusts of 100km/h over coastal parts of the Illawarra and the South Coast on Thursday evening, progressing towards Sydney and the Hunter on Friday morning.
Due to heavy rain, there is also the potential for some roads to become dangerous due to flash flooding. Fishermen and surfers have also been warned not to navigate as a very heavy surf is forecast and beach conditions could be dangerous. People are advised to stay well away from the surf and surf-exposed areas.