The trough looks to rapidly deepen into a broad surface low off the Far South or Gippsland Coast o/night Mon into Tues. There’s still model divergence over the strength and position of this low which will have material impacts on surf size and local winds so stay tuned for updates over the weekend and on Mon.
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The current S swell will ease through tomorrow with a pair of cold fronts passing into the Tasman Thurs/Fri ahead of another trough and high pressure ridge. In short, we’ll see pulses of S swell but favourable winds will be short-lived.
That will bring a robust S’ly change tomorrow and some workable S swell for temperate NSW, with a trough in the sub-tropics tilting the change more S/SE-SE later tomorrow into Wed.
We’ve got some great waves due this weekend, with light offshore winds both days and only weak sea breeze an outside risk each afternoon.
The models have marginally downgraded the developing Tasman Low generating Saturday’s large SE swell
We’ve got a dynamic outlook ahead, though the next few days look a little tricky for surf.
The situation becomes dynamic again next week. The trough is expected to stall in the central Tasman with a new strong front pushing NE into the Tasman and becoming incorporated into the trough system. The system then looks to stall and intensify near the South Island, possibly even retrograding mid next week.
A robust front linked to a deep low is expected to migrate up the southern NSW coast o/night and into the wee hours, with a surface low expected to form off the North Coast as a trough interacts with the front.
We’ve got a really dynamic outlook this week as a strong high drifts across from the Bight and a trough drawing in tropical moisture from the Indian Ocean moves across the country and eventually enters the Tasman Sea, with a long angled trough and possible surface low expected to form in the Tasman late this week.
Model divergence reduces confidence in the outlook with GFS suggesting the trough deepens into a broad surface low which would bring days of elevated S through SE-E/SE swell and onshore winds.