A strong monsoonal surge pushing off the tropics into the Coral Sea is super-charged by the vorticity created by the monster high pressure ridge. Models now seem in broad agreement that a large, dual-centred,  low pressure gyre forms across the Coral Sea/South Pacific and into the North Tasman Sea.

A monster high moving through the Bight is strengthening with the pressure gradient tightened along the entire ridge line by a low pressure trough with embedded low systems in it. The trough extends from the South Island New Zealand up to the monsoon trough across CapeYork Peninsula and into the Gulf of Carpenteria. 

Winds will come out of the east to north-east over the coming days but with small levels of weak swell.

As mentioned on Monday, we've got an unusual synoptic pattern setting up in the Tasman Sea.