Regional Haze Situation
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Latest Weather and Haze Situation
Dry weather persisted over most of the southern ASEAN region overnight, apart from the northeastern parts of Borneo and the northern parts of Peninsular Malaysia and Sumatra where showers were observed. Widespread hotspots were detected over Kalimantan and Sumatra while few to isolated hotspots were detected elsewhere in the southern ASEAN region. Moderate to dense transboundary smoke plumes were observed to cover the North, West and Central Kalimantan, Sabah, Sarawak, Brunei and parts of Palawan and Panay, the Philippines. Moderate to dense smoke plumes were observed to emit from hotspot clusters in other parts of Kalimantan and the southern parts of Sumatra. Moderate smoke haze was also observed over the central parts of Sumatra. Air quality stations in the northern and southeastern parts of Borneo and the southern parts of Sumatra reported Unhealthy to Hazardous levels. The full extent of the hotspot and smoke haze situation over the southern ASEAN region could not be determined due to cloud cover. Showers were observed over the northern ASEAN region overnight and the hotspot activity stayed low.
Weather and Haze Outlook
In the coming days, most of the southern ASEAN region is likely to remain dry, except over the northern parts of Peninsular Malaysia, the northern and central parts of Sumatra and the northeastern parts of Borneo where some showers are forecast. Under prolonged dry conditions, the hotspot and smoke haze situation is expected to stay elevated over fire-prone areas, with continued risk of severe transboundary haze occurrence. The prevailing winds over the southern ASEAN region are likely to blow from the southeast to south. Wet weather is forecast over the northern ASEAN region, which should keep the hotspot and smoke haze situation subdued. The prevailing winds over the northern ASEAN region are expected to blow mainly from the southwest to west.
- 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.