Regional Haze Situation
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Latest Weather and Haze Situation
Dry weather continued over parts of the southern ASEAN region today, except for showers mainly over the northern and central parts of Borneo, Peninsular Malaysia and Sumatra. Isolated to scattered hotspots were detected in Kalimantan and the southern parts of Sumatra, while few hotspots were detected elsewhere in the southern ASEAN region. Moderate transboundary smoke haze was observed over parts of Peninsular Malaysia, Singapore, Kalimantan, the southern and central parts of Sumatra, and the western parts of Sarawak. Moderate to dense smoke plumes were also observed across large parts of Kalimantan and the southern parts of Sumatra. Many air quality stations in Peninsular Malaysia, Singapore, Borneo and Sumatra are reporting Unhealthy to Hazardous levels. The full extent of the hotspot situation over Kalimantan and the southern parts of Sumatra could not be determined due to obscuration by thick smoke haze and cloud cover, while the smoke haze situation over parts of the region could not be fully determined due to cloud cover. Wet and cloudy conditions were observed over the northern ASEAN region today, apart from drier conditions over the northern and central parts of the Mekong sub-region. Hotspot and smoke haze activities remained subdued.
Weather and Haze Outlook
Over the next few days, dry conditions are forecast to continue over parts of the southern ASEAN region, apart from Peninsular Malaysia, the northern and central parts of Sumatra, and the northern parts of Borneo, where showers are expected. While the hotspot and smoke haze situation may improve in areas experiencing showers, the situation is expected to remain elevated in fire-prone regions experiencing prolonged dry conditions, with a continued risk of severe transboundary haze occurrence. The prevailing winds over the southern ASEAN region are expected to blow mainly from the east-southeast to south. Meanwhile, showers are forecast over the northern ASEAN region, except for relatively drier conditions expected over the northeastern parts of the Mekong sub-region. Isolated hotspots and smoke plumes may develop in areas facing prolonged dry conditions. The prevailing winds over the northern ASEAN region are forecast blow mainly from the northeast to east, except over the Philippines where winds are expected to be variable in direction.
- 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.