The potential TC is unlikely to be a swell source but there is one modelled track where it briefly pushes into the swell window between Vanuatu and New Caledonia, offering some potential for NE-E/NE swell Thurs/Fri. Very low confidence at the moment and likely to be swamped by dominant S-S/SE swell in the event it does occur. We’ll revisit on Mon.
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The synoptic set-up looks quite unseasonal at the moment with a 1031 hPa high drifting over NSW and a 1007 hPa low slow moving in the Tasman west of the North Island. Current ASCAT (satellite windspeed) passes show broad fetch of mostly strong S-S/SE winds with some embedded low end gales reasonably well aimed for East coast swell production.
A strong front and embedded trough of low pressure are currently located just off the Gippsland Coast, expected too move NE into the Tasman and driving a strong/ near gale force S’ly flow up the NSW Coast today, reaching the QLD in the wee hours of Tuesday. There’ll be an initial burst of S swell associated with the proximate fetch, with some better quality SE-E/SE swell from a secondary intensification of the low as it becomes slow moving near New Zealand.
We’ve got more clarity on the situation next week now as a lingering trough line from the NSW South Coast down to Gippsland is expected to deepen in response to a front and form a surface low in the Tasman Sea, likely later Mon.
Moderate strength high pressure (1025 hPa) is drifting NE into the Tasman with a strong polar storm well SW of NZ exiting the swell window. That should see a settled short term before another complex trough and frontal system pushes north along the coast tomorrow with a stiff SW-S change. N'ly winds into the weekend under a very mobile, troughy pattern with some potential next week for a surface low to form in one of the trough lines.
I’m not super confident on the weekend outlook.
We've got more southerly swell on the way.
We've had a slight tweak to the surf outlook for Thursday, mainly for SE Qld.
It's one of the strongest N'ly local fetches we've seen in a while and will consequently deliver a punchy, sizeable NE windswell during the middle of the week.
We’ve got a strong, expansive front passing through the Tasman at present will which supply some small pulses of S swell over the coming days. High pressure over NSW is moving NE into the Tasman, with a N’ly flow presently developing.