Subseasonal Weather Outlook (20 February – 5 March 2023)
Issued: 17 February 2023
First forecast week: 20 February 2023 – 26 February 2023
Second forecast week: 27 February 2023 – 5 March 2023
Wetter conditions are expected over the western Maritime Continent in the next fortnight (20 February – 5 March). Wetter conditions are also expected over the northeast Maritime Continent in Week 1 (20 – 26 February).
Cooler than usual temperature is expected over most of central and eastern Mainland Southeast Asia and also over parts of the western Maritime Continent in the next fortnight (20 February – 5 March).
A Madden-Julian Oscillation (MJO) signal was present over the Western Pacific (Phases 6 and 7) in the middle of February. Models predict this MJO signal to continue propagating eastwards and then decay in Week 1 over the Western Hemisphere (Phases 8 and 1).
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.