Regional Haze Situation
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Latest Weather and Haze Situation
Dry weather persisted over many parts of the southern ASEAN region today, except for some showers over the northern parts of Peninsular Malaysia, Sumatra and Borneo. Scattered to widespread hotspots were detected in Kalimantan and the southern parts of Sumatra, while few hotspots were detected elsewhere in the southern ASEAN region. Moderate to dense transboundary haze was observed over the northern parts of Borneo. Moderate to dense smoke haze was also observed over many parts of Kalimantan, and the southern parts of Sumatra. Many air quality stations in Borneo recorded Unhealthy to Hazardous levels, while several air quality stations in the southern and central parts of Sumatra recorded Unhealthy levels. The full extent of the smoke haze situation could not be determined due to cloud cover, while the hotspot situation could be obscured by clouds and thick smoke haze. Showers continued over the northern ASEAN region today. Hotspot and smoke haze activities remained subdued.
Weather and Haze Outlook
In the coming days, dry conditions are forecast to continue over parts of the southern ASEAN region, apart from Peninsular Malaysia, and the northern and central parts of Borneo and Sumatra, where showers are expected. While the hotspot and smoke haze situation may improve in areas experiencing showers, the situation is expected to stay 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 from the southeast to south. Meanwhile, showers are forecast over the northern ASEAN region. The hotspot and smoke haze situation over the region is expected to remain subdued. The prevailing winds over the northern ASEAN region are forecast to be variable in direction, except over the southern and central parts of the Philippines, where winds are expected to blow mainly from the west-southwest to west-northwest.
- 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.