Southern Tasmanian Surf Forecast by Craig Brokensha (issued Wednesday March 20th)

Best Days: Every day this period

Features of the Forecast (tl;dr)

• Easing SW swell tomorrow with N/NW tending W/SW winds
• Building W/SW swell Fri PM, peaking Sat
• N/NW winds Fri, shifting W/SW late with W/NW tending light E/SE winds Sat
• Stronger mid-period W/SW swell building Sun with fresh NW tending strong W/SW winds
• Large SW groundswell building Mon PM with strengthening N/NW tending W/NW winds
• Easing swell Tue with W/NW tending S/SE winds
• Smaller Wed with N/NE tending SE winds

Recap

Yesterday started tiny, with an inconsistent W/SW groundswell for the afternoon arriving with onshore winds, better this morning and to 1-2ft with clean conditions.

This week and next (Mar 21 - 29)

This afternoon we've got some more consistent mid-period swell on the build, thanks to a weak front clipping the state, and we should see this reaching 2ft+, easing back from 2ft tomorrow morning under N/NW winds, shifting W/SW into the afternoon and evening.

From Friday we should see the swell starting to climb as a train of polar frontal systems move in from the west, bringing some weakish mid-period swell, stronger into Monday as a stronger polar low fires up on the tail of the activity.

Building surf to 2ft is due into Friday afternoon with Saturday and Sunday morning coming in at 2ft+.

Through the afternoon Sunday, bigger levels of mid-period W/SW swell is due, generated by the weakening polar low, and this should reach 3ft+ later in the day.

The earlier stages of the polar low, generating gale-force W/SW winds should produce some stronger SW groundswell on Monday, building to 4-5ft through the afternoon.

Easing surf is then due from 4ft or so Tuesday, smaller into the rest of the week.

Looking at the local winds and N/NW breezes are due most of Friday, shifting W/SW later, with Saturday seeing W/NW winds, possibly going sea breezy but without any strength.

As the remnants of the low moves across us Sunday, morning NW winds will shift strong W/SW, with Monday looking favourable most of the day under strengthening N/NW tending W/NW winds.

Tuesday also looks decent with W/NW winds holding most of the day, variable Wednesday morning and then N/NE on Thursday. So all in all fairly favourable. We'll confirm this and the swell sizes on Friday though.