Small clean run of waves across the South West, bigger late next week

Craig Brokensha picture
Craig Brokensha (Craig)

Western Australia Surf Forecast by Craig Brokensha (issued Friday 25th March)

Best Days: Saturday, Sunday morning, Monday morning, Thursday morning, Friday, next Saturday morning

Recap

No waves from Mandurah north, with a good reinforcing SW groundswell to 4-5ft or so yesterday in the South West under offshore winds for most of the day, dropping back more to 4ft this morning with a weaker offshore breeze.

This weekend and next week (Mar 26 – Apr 1)

The weekend is still looking mainly void of any major swell activity with background SW groundswell keeping the exposed reefs in the South West around the 3-4ft range. Perth and Mandurah will remain tiny to flat though.

Conditions will be cleanest tomorrow with a moderate to fresh E/SE tending E'ly breeze, persisting all day, while Sunday should play out similar with E/SE winds, tending more S'ly through the afternoon.

A slow drop in swell is due into early next week with favourable E/SE winds continuing each morning ahead of afternoon sea breezes. Exposed breaks will be the only option before the swell bottoms out Tuesday and Wednesday.

Into the end of next week two pulses of S/SW groundswell are due, the first being long-period but in the moderate size range, ahead of a larger kick Friday afternoon, easing Saturday.

The first pulse will be generated by a small and tight polar low forming late in our swell window, generating a fetch of severe-gale to storm-force W/SW winds.

This long-period swell should fill in Thursday morning and peak to a good 4-5ft+ across swell magnets in the South West with no real size further north.

Behind this tight polar low will form a broader and more favourably positioned polar low, aiming a fetch of severe-gale W/SW winds towards us while projecting slightly north-east, followed by a smaller weaker front on a similar track.

A larger S/SW groundswell should result, building strongly Friday afternoon and reaching 6-8ft across the South West, easing slowly from the 6ft+ range Saturday morning. Perth probably won't see any size later Friday with 1-2ft sets Saturday, but check back here Monday for an update on this.

Longer term there's nothing significant at all following this, but more on this Monday. Have a great weekend!