Meanwhile, the Bureau of Meteorology has issued a very heavy surf warning for the mid north coast.
The big surf is expected to lead to erosion damage at beaches across the region.
Already at Scotts Head sand dunes have collapsed, tossing trees into the ocean.
Beach conditions across the mid north coast are predicted to be dangerous and people are advised to stay away from surf and exposed rock platforms.
The big seas are being driven by a slow moving low pressure system over the Tasman Sea.
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