Submitted by Craig on Fri, 04/18/2014 - 13:14
South Australian Forecast (issued Friday 18th April)
Best Days: Saturday, Sunday, Monday, Wednesday
The South Coast saw fun clean waves at exposed beaches yesterday morning before a shallow sea breeze developed and backed off into the afternoon.
A new pulse of W/SW groundswell expected across the Mid into the afternoon arrived under variable winds, with clean glassy 2ft sets across most spots creating a great evening surf.
Today a strong change has moved through creating poor conditions across both coasts with 3ft or so of swell on the South Coast and 2ft waves on the Mid.
This weekend (Apr 19 - 21)
There's been no real change to the large and powerful SW groundswell that's expected to impact the state tomorrow. The readings off WA are looking very impressive with Albany registering 6m of pure groundswell at 18 seconds this morning.
This swell should arrive overnight and peak tomorrow morning to a solid 5-6ft at Middleton and 6-8ft at Waits and 2-3ft+ on the Mid. Winds should go variable tomorrow morning across both coasts in the wake of today's change, likely swinging light offshore, creating good to excellent conditions.
A drop in size is due Sunday and winds will continue to cooperate, swinging light NW down South and variable into the afternoon, with variable winds for the Mid.
A reinforcing swell is due on Monday, produced by a trailing polar front on the tail of the system linked to Saturday's swell, and winds will be favourable for the South Coast but blowy with a fresh and gusty N/NE tending NW breeze.
Size wise, we should see Middleton continuing at 3-4ft+ with 4-5ft sets at Waits and Parsons while the Mid Coast should continued at 1-2ft.
Next Tuesday onwards (Apr 22 onwards)
Tuesday will be a day to miss with fresh S/SW winds in the wake of a late change Monday and easing swell but come Wednesday winds should swing back to the W/NW, favouring the South Coast again.
A new swell should arrive during the day as well, generated by a flurry of strong but scattered polar frontal activity over the weekend and early next week. Middleton should bump back to 3ft+ with larger 4ft sets out at Waits with 1ft+ surf on the Mid.
Another good SW groundswell is due into Thursday afternoon and Friday morning from a deepening mid-latitude in the Bight, but we'll look at this again on Monday.