The RMM signal remains in Phase 5. No eastward movement of the OLR anomaly has been apparent, however weak westerly wind anomalies have developed west of the maritime continent over the past few days. This incoherent MJO signal is unlikely to have any effect in northern Australia at this time of year, however the next passage of the MJO could be expected mid-late October, and influence the timing of the initial summer rains in the north.
In Australia, there is less direct impact from MJO passages during our winter/early spring. For example, during Phases 5 and 6 the southern grain belt (south eastern Australia) could expect enhanced chances of rain, and the western grain growing region winter rainfall is enhanced during MJO Phases 7 and 8. More 'weak' MJO Index signals, when Phase cannot be determined, are recorded during Austral winter.
