Subseasonal Weather Outlook and Review

Drier than usual conditions are predicted over much of Mainland Southeast Asia and most of the northern and southeastern Maritime Continent during the next fortnight (30 March – 12 April).

Warmer than usual temperatures are predicted over much of Mainland Southeast Asia and parts of the northwestern Maritime Continent during the next fortnight (30 March – 12 April).

A Madden-Julian Oscillation (MJO) signal was present over the Western Hemisphere (Phase 8) in the third week of March, based on the RMM index. Most models predict the signal to weaken by the start of the forecast period. During Week 1 (30 March – 5 April), models indicate the signal will either be present over the Western Hemisphere (Phases 8 and 1) or be inactive. There is little agreement on the predicted MJO activity among the models in Week 2 (6 – 12 April).

The outlook is assessed for the region in general, where conditions are relative to the average conditions for the corresponding time of year. For specific updates on the national scale, the relevant ASEAN National Meteorological and Hydrological Services should be consulted.

Drier than usual conditions are predicted over much of Mainland Southeast Asia and most of the northern and southeastern Maritime Continent during the next fortnight (30 March – 12 April).

Warmer than usual temperatures are predicted over much of Mainland Southeast Asia and parts of the northwestern Maritime Continent during the next fortnight (30 March – 12 April).

A Madden-Julian Oscillation (MJO) signal was present over the Western Hemisphere (Phase 8) in the third week of March, based on the RMM index. Most models predict the signal to weaken by the start of the forecast period. During Week 1 (30 March – 5 April), models indicate the signal will either be present over the Western Hemisphere (Phases 8 and 1) or be inactive. There is little agreement on the predicted MJO activity among the models in Week 2 (6 – 12 April).

The outlook is assessed for the region in general, where conditions are relative to the average conditions for the corresponding time of year. For specific updates on the national scale, the relevant ASEAN National Meteorological and Hydrological Services should be consulted.