The remnants of the Tasman Low (ex ECL) are now drifting near the South Island, on top of a large high which is slowly moving out of the Tasman Sea. A high is approaching from the South Australian interior, with a trough expected to form off the coast later Tues and develop a broad, relatively weak low in the Central/Northern Tasman.

Poor tomorrow but better Sunday with a rare E/SE groundswell and OK winds.

Improving tomorrow with a mix of swells, best Sunday with easing size. A windy change is due Tuesday with some new westerly swell.

The new trough/low is generating gales out of Bass Strait and up towards the South Coast. The main low is drifting towards the South Island and intensifying today, with gales to severe gales expected to retrograde NW back into the Tasman Sea.