Large swells to come
Java, Bali, Lombok, Sumbawa forecast by Craig Brokensha (issued Tuesday 2nd June)
Best Days: Every day over the coming period
This week and next week (Jun 5 - 12)
The surf should be slowly building across the region today as a new long-range SW groundswell fills in. This should reach 5-6ft across exposed breaks into this evening, and hold into tomorrow morning at a similar size.
Into Friday afternoon a new large S/SW groundswell is due to start showing across the coast, peaking through Saturday ahead of a secondary pulse Sunday.
These swells were generated by a broad and elongated fetch of severe-gale W/SW winds through the south-eastern Indian Ocean.
The first pulse should offer infrequent 8ft to occasionally 10ft waves across exposed breaks Saturday as it peaks, before a second pulse Sunday comes in at a similar size. The models are showing more size into Sunday but this is because it's incorrectly combining Saturday's easing pulse and Sunday's new pulse.
A drop in size is due through Monday from 6-8ft+ at exposed breaks, smaller into Tuesday morning ahead of a new and late increase in new long-period S/SW groundswell.
This will be generated over the coming days by a vigorous and broad frontal system in a similar position to the ones generating the weekend's swells, with exposed breaks due to kick later Tuesday back to 6-8ft before peaking Wednesday morning to 6-8ft+.
After this a general drop in swell is due into the end of the week, slowed slightly by a long-range and inconsistent SW groundswell pulse Thursday evening Friday.
Winds over the coming period are due to back off from fresh to strong E/SE trades during mid-next week before possibly picking up again the week thereafter.
Longer term a cut-off low in the Indian Ocean will generate a funky S/SW groundswell for the week starting the 15th, with nothing too major on the cards after that. More on this Tuesday though.