Regional Haze Situation
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Latest Weather and Haze Situation
Dry conditions prevailed over many parts of the northern ASEAN region today, except over the southern parts of the Mekong sub-region where some showers were observed. Clusters of scattered hotspots were detected in Cambodia and Myanmar, while isolated hotspots were detected elsewhere in the Mekong sub-region. Moderate transboundary smoke plumes were observed to emanate from clusters of hotspots in the northeastern parts of Cambodia drifting west-southwestwards into the southern parts of Lao PDR. Moderate to dense smoke plumes were seen emanating from clusters of hotspots in the central parts of Myanmar, the eastern parts of Cambodia, as well as the northern and southern parts of Lao PDR. Slight to moderate haze was also observed over the northern and central parts of Thailand. Due to cloud cover, the full extent of the hotspot and smoke haze situation in the Mekong sub-region could not be determined.
Showers were observed over most parts of the southern ASEAN region today. Few hotspots were detected in East Kalimantan. No significant smoke plumes were observed from recent satellite imagery. Due to cloud cover, the full extent of the hotspot and smoke haze situation in the southern ASEAN region could not be determined.
Weather and Haze Outlook
Over the next few days, dry weather is expected to persist over most parts of the Mekong sub-region, except over the eastern parts of Viet Nam where some showers are forecast. The hotspot and haze situation is likely to remain elevated over the fire-prone areas in the Mekong sub-region experiencing prolonged dry weather, with a risk of transboundary haze occurrence. The prevailing winds over the northern ASEAN region are expected to blow from the northeast to east, except for the northern parts of the Mekong sub-region where the prevailing winds are weak and variable in directions.
For the southern ASEAN region, wet weather is forecast over most parts of the region in the coming days. Isolated hotspots and smoke plumes may still develop in areas experiencing brief periods of drier weather. The prevailing winds over the southern ASEAN region are likely to blow from the northwest or northeast.
- 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.