Swell of the season inbound for Indonesia
The Indian and Southern Oceans have been pumping out plenty of swell over the last couple of weeks with back to back groundswells for Indonesia and Western Australia. However, those swells will pale into comparison against a swell due next week, which will be the largest of the current winter season.
It was just under a year ago that a couple of unknown Russian and Brazilian surfers took on maxing Uluwatu with jetskis and tow boards. On the 25th of July, arguably the biggest footage we've seen of Uluwatu being surfed hit the internet, 15-20ft and breaking from the Bommie all the way towards Padang.
The coming swell looks to fall just short of that swell, but it'll light up every exposed coastline from the Maldives to Tasmania.
This coming weekend we'll see a broad node of the Long Wave Trough strengthen across the southern Indian Ocean (see image below), and this will in turn supercharge a developing polar frontal system forming in the Heard Island region.
A wide and expansive fetch of severe-gale 40-45kt W/SW winds will move on top an active sea state, generating a significant swell in its own right (30ft+ of open ocean swell) but on top of this we'll see storm-force 50-60kt winds adding the icing to a very bountiful cake.
With core winds being so strong, a long-period and extra-large groundswell event will be generated for Western Australian and eastern Indonesia, though north-west winds will limit surfing options on Australia's West Coast when it peaks on Wednesday. Margaret River is expected to reach 20-25ft with larger sets at offshore bommies, while the swell will continue north into Indonesia, arriving later Thursday and peaking Friday at 12-15ft across Uluwatu.
This swell will have a little more west in its direction compared to last July's event, which may help to get into some corners though it could just as easily hinder the swell from propagating up some of Indonesia's straits. Local knowledge will be key.
South Australia and Victoria will see large long-period surf from the storm, though with the westerly direction there'll be a large discrepancy in sizes. A bonus though will be a large blocking high sitting across the eastern part of the country, directing favourable north-northeast winds for those spots exposed to the incoming swell later week.
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