Tiny to small ahead of a large W/SW swell Thursday
Victoria Forecast by Craig Brokensha (issued Monday 8th September)
Best Days: Friday, Saturday morning, Sunday morning east of Melbourne
Both coasts offered fun waves all weekend, coming in at a small and early offshore 2ft on the Surf Coast with 3-4ft sets east of Melbourne Saturday, with a touch more size and power Sunday to 3-5ft east of Melbourne.
Yesterday's small spike in swell has since dropped and the surf is bottoming out across the state with tiny waves on the Surf Coast and easing 3ft waves on the Mornington Peninsula.
This week (Sep 8 - 12)
The next couple of days will be worth giving a miss, with the swell expected to remain tiny into tomorrow under strong but easing N'ly tending N/NW winds.
A late increase in acute W'ly swell is due, peaking Wednesday but the westerly nutare is worrying me a little. The swell will be generated by a short-lived fetch of W'ly gales from a south-east dipping cold front firing up to our south-west overnight and isn't really due to impact the Surf Coast.
We may see 1-2ft sets Wednesday morning, while the Mornington Peninsula should offer more size to 3-5ft. Winds will unfortunately be unfavourable for the Mornington Peninsula with a fresh W/NW tending NW breeze.
Thursday and Friday are the days to surf, as the much anticipated large pulse of W/SW groundswell fills in.
A strong node of the Long Wave Trough is moving in from Western Australia, bringing with it a couple of vigorous frontal systems.
An initial system will be too far north and not deliver any swell to us, but the secondary polar front firing up south-west of WA and then racing towards us while generating a fetch of severe-gale to sub-storm-force W/SW winds should produce a large W/SW groundswell for Thursday and Friday.
The swell will push east a little quicker than ideal, escaping the swell it's generating, but the wind speeds should override this and produce a building swell to 5-6ft+ across the Surf Coast during the day, with the Mornington Peninsula building to 10ft.
Winds will be best for the Surf Coast with a fresh to strong offshore W/NW'ly Thursday morning ahead of a shift to the W/SW around midday with the passing of the front.
Friday is looking a lot better than it was last week now as winds tend back to the NW on the Surf Coast before swinging more W'ly through the day. The swell will ease steadily though from 5-6ft on the Surf Coast, down to 3-5ft into the afternoon and down from 6-8ft+ on the Mornington Peninsula.
This weekend onwards (Sep 13 onwards)
The easing trend will be softened into the weekend by a much weaker trailing front pushing in on the tail of the system responsible for Thursday's swell.
This should keep 3ft sets hitting the Surf Coast with 5-6ft waves on the Mornington Peninsula under NW tending W/NW winds Saturday and then onshore SW winds Sunday.
Longer term a very long-period but inconsistent and small-moderate W/SW groundswell is due next Monday, generated in the Southern Indian Ocean, but more on this Wednesday.