Category Archives: Alert 0

End of Dry Season for the Mekong sub-region

The persistent wet weather over the Mekong sub-region in recent days has continued to suppress the overall hotspots and smoke haze situation in the sub-region. Based on the NOAA-20 satellite surveillance, a total of 7 and 27 hotspots were detected in the Mekong sub-region on 19 and 20 May 2025 respectively.

In the coming months, shower activities are forecast to continue, which should keep the hotspot and smoke haze situation subdued over the Mekong sub-region.

End of Dry Season for the Southern ASEAN Region

Widespread showers in recent days had alleviated the overall hotspot and smoke haze situation over the southern ASEAN region. Based on surveillance by the NOAA-20 satellite, a total of 18 and 4 hotspots were detected in Kalimantan on 12 and 13 October 2024 respectively, and a total of 1 and 0 hotspots were detected in Sumatra on 12 and 13 October 2024 respectively.

With wet weather expected to continue over the southern ASEAN region in the coming months, the overall hotspot and smoke haze situation is likely to remain subdued. However, isolated hotspots and localised smoke plumes may still occur in fire-prone areas during brief periods of relatively drier weather.

End of Dry Season for the Mekong Sub-Region

Wet weather conditions were observed to persist over the Mekong sub-region in recent days, which have kept the overall hotspot and smoke haze situation over the sub-region subdued. Based on the NOAA-20 satellite surveillance, a total of 16 and 26 hotspots were detected in the Mekong sub-region on 21 and 22 May 2024 respectively.

As the shower activities are forecast to continue over most parts of the Mekong sub-region in the coming months, the overall hotspot and smoke haze situation in the Mekong sub-region is expected to remain suppressed.

End of Dry Season for the southern ASEAN region

In recent days, widespread shower activities have helped to further suppress the overall hotspot and smoke haze situation over the southern ASEAN region. Based on surveillance by the NOAA-20 satellite, 18 and 36 hotspots were detected in Sumatra on 12 and 13 November 2023 respectively, and 3 hotspots were detected in Kalimantan on both days.

The hotspot and haze situation over the southern ASEAN region is expected to remain subdued as shower activities are forecast to continue in the coming months. However, isolated hotspots and localised smoke plumes may still develop in fire-prone areas during brief periods of relatively drier weather.

End of Dry Season for the Mekong Sub-Region

In recent days, more persistent and widespread rainfall was observed across the Mekong sub-region, which kept the overall hotspot and smoke haze situation subdued. Based on surveillance by the NOAA-20 satellite, a total of 169 and 86 hotspots were detected in the sub-region on 22 and 23 May 2023, respectively.

With the Southwest Monsoon firmly established, continued shower activities are forecast over most parts of the Mekong sub-region in the coming months. Hotspot and smoke haze activities are likely to remain suppressed during this period.

End of Dry Season for the Southern ASEAN Region

In the past week, there have been widespread showers over most parts of the southern ASEAN region which has helped to subdue the overall hotspot activity in the region and no significant smoke haze was observed from satellite imagery. Based on NOAA-20 satellite surveillance, no hotspots were detected in the southern ASEAN region on 10 and 11 October 2022

As the prevailing wet weather is forecast to persist over the southern ASEAN region in the coming days, the hotspot activity is expected to remain subdued

End of Dry Season for the Northern ASEAN Region

Over the past week, there have been widespread shower activities over much of the Mekong sub-region. The wet weather has helped to subdue the overall hotspot activity and no significant smoke haze was observed in recent days. The total hotspot count in the sub-region also remained low, with a total of 8 and 1 hotspots detected in the Mekong sub-region on 17 and 18 May 2022, respectively, from the NOAA-20 satellite surveillance.

With rainy weather forecast to persist over the northern ASEAN region in the coming days, hotspot and smoke haze activity is expected to remain generally subdued.

End of Dry Season for the Southern ASEAN Region

In the past week, shower activities have increased over the southern ASEAN region. Based on surveillance by NOAA-20 satellite, a total of 32 and 3 hotspots were detected in Sumatra, while 10 and 0 hotspots were detected in Kalimantan on 16 and 17 Oct 2021 respectively.

In the coming days, the winds are forecast to be light and variable, signalling the onset of inter-monsoon conditions. Increased shower activities are also expected. With some chance of La Niña conditions developing over the next few months, above-normal rainfall is expected for most parts of the southern ASEAN region for the rest of the year which would help subdue the hotspot activities. Isolated hotspots and localised smoke plumes may however still occur during brief periods of dry weather.

End of Dry Season for the Northern ASEAN Region

Over the past week, there have been increased shower activities over the northern ASEAN region. Based on surveillance by the NOAA-20 satellite, the total hotspot count in the region has remained low, with 30 and 29 hotspots detected on 19 and 20 March 2021 respectively.

With rainy weather forecast over the northern ASEAN region in the coming days, hotspot activities are expected to be subdued. However, there could still be isolated hotspots with localised smoke plumes during brief periods of drier weather.

End of Dry Season for the Southern ASEAN Region

There have been more shower activities over the southern ASEAN region in the past few weeks. Based on surveillance by the NOAA-20 satellite, a total of 0 and 11 hotspots in Sumatra were detected on 28 and 29 Oct 2020 respectively, while 1 hotspot was detected in Kalimantan on each of these two days.

In the coming weeks, the prevailing winds are forecast to become light and blow from the northeast or northwest in the southern ASEAN region. Increased shower activities are also expected over most parts of the region. This will help to subdue hotspot activities and decrease the likelihood of transboundary haze. However, there could still be isolated hotspots with localised smoke haze during brief periods of drier weather.