Category Archives: Start of Dry Season

December 3, 2020

Alert20201203 – Start of Dry Season for the Northern ASEAN Region

Start of Dry Season for the Northern ASEAN Region

Over the past several days, dry weather has persisted over the northern ASEAN region, and this has contributed to an increase in hotspot activities. In particular, localised smoke plumes were observed to emanate from some of these hotspots in Thailand and Myanmar. Based on surveillance by the NOAA-20 satellite, 95 and 27 hotspots were detected in the northern ASEAN region on 1 and 2 December 2020 respectively.

The Northeast Monsoon is expected to last until March 2021. Extended periods of dry weather may lead to a further increase in hotspot activities in the northern ASEAN region over the next several months.

August 3, 2020

Alert20200803 – Start of Dry Season for the Southern ASEAN Region

Start of Dry Season for the Southern ASEAN Region

In recent days, drier weather was observed over the southern ASEAN region, particularly in the southern parts of Sumatra and Kalimantan. Based on surveillance by the NOAA-20 satellite, a total of 19 and 5 hotspots were detected in Sumatra, while 2 and 3 hotspots were detected in Kalimantan, on 1 and 2 Aug 2020 respectively. There was no significant smoke haze observed in the vicinity of these hotspots.

The prevailing dry season is expected to continue into October 2020. For the next few months, above average rainfall is forecast in large parts of the region, which would help to reduce the risk of widespread land and forest fires. However, periods of dry weather can be expected occasionally, and this can lead to an increase in hotspot activities in the fire-prone areas.

December 5, 2019

Alert20191205 – Start of Dry Season for the northern ASEAN region

Start of dry season for the northern ASEAN region

In recent days, dry conditions have contributed to an increase in hotspot activities in the Mekong sub-region. Localised smoke plumes have also been observed emanating from some of these hotspots. Based on surveillance by the NOAA-20 satellite, there were 114 and 257 hotspots detected in the Mekong sub-region on 3 and 4 December 2019 respectively.

The prevailing Northeast Monsoon is expected to persist until March 2020, during which extended periods of dry weather may lead to further increase in hotspot activities in the Mekong sub-region.

October 3, 2019

Alert20191003 – Downgrade of Alert Level 2 to Alert Level 1 for the southern ASEAN region

Downgrade of Alert Level 2 to Alert Level 1 for the southern ASEAN region

Increased shower activities over many areas of southern ASEAN region have contributed to a significant improvement in the hotspot and haze situation. Based on surveillance by the NOAA-20 satellite, 33 and 5 hotspots were detected in Sumatra, and 10 and 9 hotspots were detected in Kalimantan on 2 and 3 October 2019 respectively. The hotspots were detected mostly in southern Sumatra and the southern and eastern parts of Kalimantan.

In the coming days, the prevailing winds over the southern ASEAN region are forecast to be light and variable in direction. More showers can be expected over the region. However, some areas including the southern parts of Sumatra and Kalimantan, can still experience brief periods of dry weather and hotspot activities may still persist in these areas. The risk of transboundary haze is currently assessed to be low due to rainy conditions elsewhere in the region, and prevailing winds that are generally light and variable in direction.

July 2, 2019

Alert20190702 – Start of Dry Season for the Southern ASEAN Region

Start of dry season for the southern ASEAN region

In the past few days, drier weather conditions were observed over many parts of the region, particularly in the southern parts of Sumatra and Kalimantan. Isolated hotspots, occasionally with localised smoke plumes, were detected in Sumatra, Kalimantan and Peninsular Malaysia. Based on surveillance by the NOAA-19 satellite, 2 and 6 hotspots were detected in Sumatra, and 3 and 0 hotspots were detected in Kalimatan on 30 June and 1 July 2019 respectively

The prevailing Southwest Monsoon is expected to persist until October 2019. Extended periods of dry weather can be expected occasionally, and this can lead to an increase in hotspot activities in the fire-prone areas.

December 7, 2018

Alert20181207 – Start of Dry Season for the Northern ASEAN Region

Start of Dry Season for the Northern ASEAN Region

With the onset of the dry season, isolated hotspots with localised smoke plumes have been detected in the Mekong sub-region in the past few days. Based on surveillance by the NOAA-19 satellite, there were 20 and 157 hotspots detected in Mekong sub-region on 5 and 6 December 2018 respectively.

The prevailing Northeast Monsoon is expected to persist until March 2019. Occasional extended periods of dry weather may lead to an increase in hotspot activities in the northern ASEAN region during this period.

June 8, 2018

Alert20180608 – Start of Dry Season for the southern ASEAN region

Start of Dry Season for the southern ASEAN region

In the past week, dry conditions brought on by the Southwest Monsoon were observed over many parts of the southern ASEAN region. Isolated hotspots have been detected in Peninsular Malaysia and Sumatra in the last few days. Based on surveillance by the NOAA-19 satellite, 8 and 5 hotspots were detected in Sumatra, and 5 and 3 hotspots were detected in Peninsular Malaysia, on 6 and 7 June 2018 respectively.

The prevailing Southwest Monsoon is expected to last till October 2018. Extended periods of drier weather can be expected occasionally, and this can lead to an increase in hotspot activities in the fire-prone areas.

January 15, 2018

Start of Dry Season – 15012018

Start of dry season for the northern ASEAN region

In the past week, ASMC’s monitoring has detected an increase in hotspot activities in the Mekong sub-region, mainly in Cambodia and Thailand. Based on surveillance by the NOAA-19 satellite, 28 and 4 hotspots were detected in the Mekong sub-region on 14 and 15 January 2018 respectively.

The prevailing Northeast Monsoon conditions are expected to persist until March 2018, and dry weather conditions are expected in the northern ASEAN region. An increase in hotspot activities can be expected during extended dry periods.

June 7, 2017

Start of Dry Season – 07062017

Start of dry season for the southern ASEAN region

The Southwest Monsoon onset in the region in late May 2017. Over the past few days, the region including Sumatra and Kalimantan has been experiencing dry weather conditions. The number of hotspots in Sumatra and Kalimantan has remained low but is expected to increase as the dry season progresses. Based on surveillance by the NOAA-19 satellite, 12 and 14 hotspots were detected in Sumatra on 6 and 7 June 2017 respectively.

The prevailing Southwest Monsoon is expected to strengthen and persist over the next few months. During this period, extended periods of drier weather can be expected, which could lead to elevated hotspot activities in the fire-prone areas.

February 3, 2017

Start of Dry Season – 03022017

Start of dry season for the northern ASEAN region

In the past week, our monitoring has detected an increase in hotspot activities in the Mekong sub-region, mainly in Cambodia and Thailand.

The prevailing Northeast Monsoon conditions are expected to persist until March 2017, bringing drier weather conditions to the northern ASEAN region. An increase in hotspot activities can be expected particularly during persistent dry periods.