Subseasonal Weather Outlook and Review

Drier than usual conditions are predicted over southeastern Mainland Southeast Asia and the northeastern Maritime Continent during the next fortnight (16 – 29 March). Drier conditions are also predicted to develop over parts of the western and central equatorial region in Week 1 (16 – 22 March) and persist in Week 2 (23 – 29 March).

Cooler than usual temperatures are predicted over most of Mainland Southeast Asia and the northeastern Maritime Continent in Week 1 (16 – 22 March). Warmer than usual temperatures are predicted over parts of the western Maritime Continent in Week 2 (23 – 29 March).

No discernible Madden-Julian Oscillation (MJO) signal was present at the start of the second week of March, based on the RMM index. Some models predict an MJO signal to develop over the Western Pacific (Phase 7) by the start of the forecast period, reaching the Western Hemisphere and Africa (Phase 8) during Week 1 (16 – 22 March). There is little agreement on the predicted MJO activity among the rest of the models in Week 1 (16 – 22 March). In Week 2 (23 – 29 March), most models predict no discernible MJO activity.

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 southeastern Mainland Southeast Asia and the northeastern Maritime Continent during the next fortnight (16 – 29 March). Drier conditions are also predicted to develop over parts of the western and central equatorial region in Week 1 (16 – 22 March) and persist in Week 2 (23 – 29 March).

Cooler than usual temperatures are predicted over most of Mainland Southeast Asia and the northeastern Maritime Continent in Week 1 (16 – 22 March). Warmer than usual temperatures are predicted over parts of the western Maritime Continent in Week 2 (23 – 29 March).

No discernible Madden-Julian Oscillation (MJO) signal was present at the start of the second week of March, based on the RMM index. Some models predict an MJO signal to develop over the Western Pacific (Phase 7) by the start of the forecast period, reaching the Western Hemisphere and Africa (Phase 8) during Week 1 (16 – 22 March). There is little agreement on the predicted MJO activity among the rest of the models in Week 1 (16 – 22 March). In Week 2 (23 – 29 March), most models predict no discernible MJO activity.

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.