In between, a trough and cold front are currently approaching Tasmania, expected to bring a vigorous W/SW-SW flow o/night into tomorrow, bringing a spike in short range S swell short term.
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We’ll see the current dominant high (1034hPa) straddling New Zealand which is directing a broad trade fetch through the South Pacific and into the Coral Sea slowly migrate eastwards this week with an E’ly dip forming a trough of low pressure due E of SEQLD mid week.
We should see some better quality E/NE swell from a southwards moving low pressure trough which moves from the South Pacific into the Northern Tasman next week.
Remnants of a low on the weekend are also sitting near New Zealand with swell generating fetches off the South Island and emerging from Cook Strait into the eastern Tasman. Swells from the New Zealand fetches keep surf zones active into the end of the week with mostly offshore to light winds into the weekend.
We’ll see another front and trough develop tomorrow on the leading edge of the dominant high, which sees S swell short term then a strong S/SE-SE fetch develop through the lower Tasman from mid week. Plenty of swell from this source seeing fresh S’lies, easing later in the week.
Make the most of the current energy, with some localised S/SE-SE swell on the cards for mid-next week.
We’ve got a slow moving high sitting east of Tasmania and a trough of low pressure off the North Coast directing an onshore flow across most of the Eastern Seaboard tending N’ly off Southern NSW to Tasmania.
We’ll see the trough bring S’ly winds and swell as it moves up the NSW Coast through the first half of this week. That will mostly obscure some traces of long period S swell pushing up the Tasman, generated by a large polar low.
It's large and windy this afternoon but the weekend looks great as the current swell eases steadily.
After a binary interaction between the two systems, the merged low transitions into a storm force sub-tropical low which tracks SW into the Northern Tasman. This storm force low has a broad fetch aimed directly at the East Coast down to Tasmania, generating a large E’ly quadrant swell for Good Friday and the Easter weekend with uncommonly large swell periods for swells from that direction.