Active period ahead for the next couple of weeks
Java, Bali, Lombok, Sumbawa forecast by Craig Brokensha (issued Tue 3rd Jun)
Best Days: Every day over the coming period
This week and weekend (Jun 3 - 8)
The forecast for the coming week is still holding with medium sized pulses of SW groundswell expected to pad out the coming days under fresh to sometimes strong E/SE trades.
Size wise exposed spots should hover either side of 5ft for the most part with larger 6ft sets seen mainly through tomorrow and later Friday.
Into the weekend, a long-range and very inconsistent but large SW groundswell is due to fill in and peak through Saturday, generated in our far swell window to the south-east of South Africa and Madagascar.
Due to the extremely large distance between the source of the swell and our coasts the breaks between sets are expected to be 10-15 minutes or so with exposed spots coming in at 6ft with rare 8ft bombs and smaller surf at protected spots.
The swell should drop a touch into Sunday, but not below 6ft at exposed spots as trailing frontal activity in the wake of the strong progression responsible for Saturday's swell keeps plenty of swell hitting the Indonesian Archipelago.
Next Monday onwards (June 9 onwards)
Another large but a lot more consistent SW groundswell is due to arrive through Monday afternoon and peak Tuesday morning generated by a tight and intense low pushing up through the Central Indian Ocean, aiming a fetch of gale to severe-gale SW winds towards us. This system will push fairly north into the Indian Ocean helping to reduce the amount of swell decay and also increase the consistency.
Size wise we should see exposed spots peaking in the 6ft to occasionally 8ft range again Tuesday morning before easing into Wednesday and Thursday morning.
Winds should ease off from this week but remain moderate from the E/SE with periods of variable winds likely each morning from Sunday onwards.
Longer term there's plenty of swell to come into the next weekend and following week but we'll review this Friday.