As well as a precursor SE fetch adjacent to the South Island it is now squeezing pressure gradients with a compact, but deep low, which is currently forming gale force fetches out of Cook Strait and just north of the North Island. Compared to Fridays model runs the fetch now is a little more mobile, weaker and rotates faster out of the swell producing phase, which will see a bit of a downgrade. Still some good waves on offer though.

We’ve got a nice chunky 1033 hPa High slow moving at very southerly latitude, roughly triangulated between Tasmania and the South Island. As well as a precursor SE fetch adjacent to the South Island it is now squeezing pressure gradients with a compact, but deep low, which is currently forming gale force fetches out of Cook Strait and just north of the North Island.

A moderate sized westerly swell is due this afternoon and tomorrow, though onshore on the Mid. Larger swell energy is due later week.

A broad region of troughiness stretching from the Tasman Sea through the Coral Sea over the weekend will coalesce into a major sub-tropical low off New Zealand’s North Island, on Monday.