Regional Haze Situation
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Latest Weather and Haze Situation
Dry conditions were observed over many parts of the northern ASEAN region with the exception of showers observed over the southern parts of the Mekong sub- region and the Philippines. Widespread hotspots were detected in the eastern parts of Myanmar and in parts of Lao PDR. Isolated to scattered hotspots were detected elsewhere in the Mekong sub-region. Moderate to dense smoke haze was detected in the northern parts of the Mekong sub-region. Moderate to dense smoke plumes emanating from hotspots in the eastern parts of Myanmar were observed to drift eastwards into the northern parts of Thailand and Lao PDR. Localised smoke plumes were also observed in other parts of Lao PDR. Many air quality stations in the northern Mekong sub-region reported Unhealthy levels with some stations in the north reporting Very Unhealthy levels. The full hotspot and smoke haze situation could not be fully determined due to cloud cover in the northeastern, eastern and southern parts of the Mekong sub-region.
In the southern ASEAN region, widespread showers were observed today. The hotspot count remained low and no significant smoke plumes were observed from recent satellite imagery.
Weather and Haze Outlook
In the coming days, dry conditions are forecast to prevail in the northern, central and western parts of the Mekong sub-region, with showers expected over the northern parts of the Philippines and the southern parts of the Mekong sub-region. The hotspot and haze situation may persist in areas of the Mekong sub-region with prolonged drier conditions, with a continued risk of transboundary haze occurrence. Meanwhile, showers over the southern parts of the Mekong sub-region may weaken the hotspot and haze situation over those areas. The prevailing winds over the northern ASEAN region is forecast to blow from the northeast to east, with winds over the northern and western parts of the sub-region to blow from the south.
In the southern ASEAN region, wet weather is forecast to continue. The hotspot and haze situation is forecast to remain subdued. The prevailing winds over the southern ASEAN region are forecast to be mainly light and variable in direction, with winds over Peninsular Malaysia and Singapore forecast to blow mainly from the northeast to east.
- All maps are to be used solely for displaying meteorological/geophysical information, and not for any other purpose. All maps are not to scale and for illustrative purpose only.
- The hotspots depicted on the map are derived from the NOAA satellite and they represent locations with possible fires. Hotspots may go undetected due to cloudy conditions or incomplete satellite pass.
- At Alert Level 0 and Alert Level 1, the regional haze situation is updated once a day at 0900 UTC. The regional haze situation is updated more frequently at 0300 UTC and 0900 UTC upon activation of Alert Level 2 or Alert Level 3. Updates at 0300 UTC display hotspot information from night-time passes of the NOAA-20 satellite. Fewer hotspots were typically detected at night as fire activities usually peak during the day.
- Reprocessed satellite data will be availed at a later timing. The hotspot information derived from satellite data reprocessed may differ slightly from that received near real-time but reprocessing is necessary for better quality data.
- The 2500 ft winds (depicted by arrows) are model analysis winds.