Fun S'ly swell for the coming days, better developments from the weekend

Craig Brokensha picture
Craig Brokensha (Craig)

Southern Tasmania Surf Forecast by Craig Brokensha (issued Monday 22nd August)

Best Days:

Recap

Nothing to get excited about over the weekend with an acute W'ly swell hardly reaching 1ft on Saturday, slightly bigger into Sunday but back to a tiny 1ft+ today. A bit more size should have been seen this afternoon with a mix of SW windswell from stalling SW winds to our south-west.

This week (Aug 23 - 26)

Tomorrow's S'ly swell is still on track, with satellite observations confirming a fetch of strong to gale-force S'ly winds stalling on the bottom side of the low that generating the weekend's and today's marginal swells.

A good kick to 3ft to possibly 4ft is due tomorrow, easing back slowly through Wednesday from 2-3ft.

Early W/NW winds are due tomorrow, swinging W/SW through the day, while Wednesday will play out similar.

Into Thursday smaller amounts of S/SE swell are due, maybe 1-2ft or so and again an early W/NW'ly is due, swinging S/SW through the day.

An inconsistent but fun SW groundswell is due Friday, with it being generated today and tomorrow by a strong polar low east of Heard Island. A fetch of severe-gale W'ly tending W/NW winds will be aimed through our swell window, with a good 2ft of swell due.

This swell will fade into Saturday under offshores ahead of a late SW change.

Saturday's SW change will be related to a strengthening and broadening polar frontal frontal progression firing up and stalling through our south-western swell window.

An initial front will generate a fetch of W/SW gales to our south-west Friday, stretching out further north towards us through Saturday, followed by stronger embedded fronts firing up along the same storm track, all related to a strong node of the Long Wave Trough across the Tasman Sea.

This should produce building and persistent levels of SW tending S/SW groundswell from Sunday through early next week. We'll have a closer look at this Wednesday though.