Wednesday’s building swell will be generated by a strong front presently crossing the Tasmanian coast. It’s a strong, dynamic system but is poorly aligned for the Australian East Coast (quite SW-NE in orientation through the lower Tasman Sea) so swell prospects will be down a bit compared to a more meridionally aligned fetch.

This change will whip up a small south swell for exposed south facing beaches on Thursday, but it looks like the biggest beneficiary will be the Lower Mid North Coast, which should see an earlier influence from a building ridge of high pressure - fresh southerly winds at dawn winds are expected to go variable by lunchtime ahead of a late afternoon nor’easter.