A much stronger cold front sweeps through Thurs, with size quickly ramping up from the S into the 3ft range.
This ridge of high pressure builds a fetch of Tradewinds through the Coral Sea over the coming 24-48 hrs and while the troughiness off the NSW coast disrupts the tradewind flow it should be sufficient in width and strength to see 1ft surf build later Sat, building further Sun into the 1-2ft range.
This expansive troughy pattern is likely to morph from day to day as weather models struggle to resolve the vorticity and local areas of low pressure within the trough line.
This is then augmented by a major front pushing into the Tasman, merging with the surface low to create a large area of low pressure in the Tasman.
Good swells and generally light winds with lots of surfing opportunities.
Nothing major over the weekend, with a small, flukey NW swell in the mix. Better surf potential mid-next week.
Plenty of swell energy but winds will be average for the South Coast apart from the weekend.
There'll be no lack of swell this period with a larger groundswell due next week but winds will be the main issue and working around them.
The trough is connected to a parent low and cold fronts pushing through the lower Tasman, expected to generate some small pulses of long period S swell for NE Tas over the coming days.
High pressure is weak and mobile at the moment, restricting trade-wind flows in the Coral Sea.
