Regional Haze Situation
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Latest Weather and Haze Situation
Dry conditions prevailed over most parts of the southern ASEAN region today. Scattered to widespread hotspots were detected mainly in Sumatra and Kalimantan, while few to isolated hotspots were detected elsewhere in the southern ASEAN region. Moderate to dense transboundary smoke plumes were observed to emanate from hotspots clusters detected in West Kalimantan drifting northeastwards into western Sarawak. Moderate to dense localised smoke plumes were observed to emanate from hotspots detected in large parts of Kalimantan, the central parts of Sarawak, as well as the central and southern parts of Sumatra. A few air quality stations in West Kalimantan, the southern parts Sumatra, and the western and central parts of Sarawak recorded Unhealthy levels. The full extent of the hotspot and smoke haze situation in the region could not be determined due to cloud cover.
Meanwhile, showers were observed over the Mekong sub-region today. Hotspots and smoke haze activities remained subdued.
Weather and Haze Outlook
In the coming days, dry conditions are expected over most parts of the southern ASEAN region, except over the northern and central parts of Sumatra and Peninsular Malaysia where some showers are forecast. The hotspots and smoke haze situation may escalate in areas experiencing pro-longed periods of dry weather conditions, with a conitnued risk of transboundary haze occurrences. The prevailing winds over the southern ASEAN region are forecast to blow from the southeast to south.
On the other hand, wet weather is expected to persist over the northern ASEAN region, which helps to keep the hotspot and smoke haze situation subdued. The prevailing winds over the northern ASEAN region are expected be blow 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.