Late Wed will see the next increase in swell and the system responsible, a polar low which intensifies as it passes Heard Island Sun, now looks stronger and less zonal, with a swathe of 30ft seas sending groundswell to WA.

Dynamic weekend f/cast ahead as a strong NE fetch builds a chunky windswell and a trough then brings an extended period of elevated wave heights from the SE to E.

A trough of low pressure off the QLD Coast forms a small surface low over the weekend and this moves south Mon, interacting with a strong high moving south of Tasmania and another interior low forming in a trough line late in the weekend. This potent brew intensifies the NE-E/NE fetch forming in the Coral Sea and drags it south, where it more directly impacts temperate NSW. 

We’ve got a couple of small swells inbound over the next few days; a minor bump in size for Thursday and a slightly bigger pulse Friday.