Small, clean waves in Perth and Mandurah tomorrow morning before the swell fades, then better later week with a new swell.

A poor week of surf with no decent swell and onshore when it builds. Cleaner, fun waves on the beaches come the weekend.

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.

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.