On the back of a monsoonal surge models are starting to look interested in low pressure development between PNG, the Solomons and Vanuatu which may indicate the first real tropical developments of the season. Still too early to have any expectations on surf potential from this area but we will keep our eyes on it.
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A very weak troughy pattern is unfolding this week with a weak high pressure (1016hPa) cell moving into the Tasman today as a trough stalls about the Far North Coast. Another trough tomorrow brings a shallow S’ly change which again looks to stall out on the North Coast before another weak high cell moves into the Tasman late this week. In short, no major swells expected.
Longer term and we’ll be watching the South Pacific Convergence Zone for signs of low pressure development near Fiji later next week, possibly even retrograding back towards the Australian continent.
A long tradewind fetch anchored by a 1024hPa high in the central SW Pacific is slowly retreating eastwards with a weak high cell expected to migrate into the Tasman overnight and tomorrow in the wake of a shallow trough now moving up the NSW Coast and expected to stall and wash out around the lower reaches of the MNC.
A shallow, troughy change mid-week looks to stall around Seal Rocks before weak high pressure moves into the Tasman. No major swells this week, so we’ll be relying on our persistent trade-swell, which looks to ease off mid-week as the fetch retreats eastwards.
Tradewinds keep chugging away supplying fun surf over the weekend.
A tradewind flow focussed around the New Caledonia area and out into the South Pacific slot will maintain fun E’ly tradewind surf in the sub-tropics.
As a result, we’re looking at small NE windswells for temperate NSW, with workable trade swells for the sub-tropics and a marginal amount of that swell filtering down to temperate regions.
A broad but weak E'ly tradewind fetch occupies the Coral Sea, producing some workable E'ly swell.
A large but not especially strong (1029 hPa) high pressure cell is west of Tasmania and slowly moving E where it enters the Tasman and becomes very slow moving. That will be the dominant feature of our synoptic set-up for some time, with a classic summer wind signal of SE winds in the sub-tropics, tending NE through temperate NSW.