Subseasonal Weather Outlook (1 Apr – 15 Apr 2019)

Issued 31 Mar 2019
Valid for weeks 1 and 2: 1 Apr – 15 Apr


Figure 1: Rainfall Outlook

Figure 2: Temperature Outlook

During this time of year, the Northeast Monsoon season typically weakens and transitions to the inter-monsoon period, during which more shower activities over the ASEAN region can be expected.

In the second week of April 2019, drier conditions are forecast to redevelop over many areas north of the Equator, except northern Viet Nam and parts of Lao PDR, Myanmar, and Cambodia. There are no other significant regional rainfall anomalies expected during the first fortnight.

Warmer temperatures are expected over Peninsular Malaysia and most parts of the Mekong sub-region except for Myanmar, particularly in the second week.

There is currently no significant signal shown by the Madden-Julian Oscillation (MJO), and most model predictions indicated no significant MJO activity would develop in the first half of April 2019.

The outlook is assessed for the region in general. For specific updates on the national scale, the relevant ASEAN National Meteorological and Hydrological Services should be consulted.