Regional Haze Situation
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Latest Weather and Haze Situation
Dry weather prevailed over most parts of the southern ASEAN region today, except over the northern and eastern parts of Borneo, as well as the northern and western parts of Sumatra where showers were observed. Scattered hotspots were detected in Kalimantan and Sumatra while few hotspots were detected elsewhere in the southern ASEAN region. Moderate transboundary smoke haze was observed to cover the northwestern parts of Borneo. Moderate to dense smoke plumes were also observed to emanate from hotspots clusters detected in many parts of Kalimantan and the southern parts of Sumatra. Several air quality stations in Borneo and Sumatra are reporting Unhealthy to Hazardous levels. The full extent of the hotspot situation could not be determined due to obscuration by thick smoke haze and cloud cover. The smoke haze situation at some parts of the region could not be fully determined due to cloud cover. Showers prevailed over the northern ASEAN region. The hotspot and smoke haze situation in the region remained subdued.
Weather and Haze Outlook
In the coming days, dry conditions are expected over many parts of the southern ASEAN region, except over the northern and central parts of Sumatra, Peninsular Malaysia and parts of Borneo where showers are forecast. The hotspot and smoke haze situation may improve in areas experiencing showers but also continue to stay elevated in areas experiencing prolonged periods of dry weather, with a risk of transboundary haze occurrence. The prevailing winds over the southern ASEAN region are forecast to blow from the southeast to southwest. 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 northern ASEAN region is expected to remain wet, which should keep the hotspot activity low. The prevailing winds over the northern ASEAN region are forecast 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.