Regional Haze Situation
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2500 ft Winds
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Latest Weather and Haze Situation
Dry conditions continued over many parts of the southern ASEAN region overnight, except for showers over parts of Peninsular Malaysia, and the northern parts of Borneo and Sumatra. Scattered hotspots were detected in Kalimantan and the southern and central parts of Sumatra, while few hotspots were detected elsewhere in the southern ASEAN region. Moderate transboundary haze was observed over Peninsular Malaysia, Singapore, as well as the southern parts of Viet Nam and Cambodia. Moderate to dense smoke haze was also observed in parts of Sumatra and Kalimantan. Many air quality stations in Sumatra and Kalimantan recorded Unhealthy to Hazardous levels, while air quality stations in areas affected by transboundary haze recorded Moderate to Unhealthy levels. The full extent of the hotspot and smoke haze situation could not be determined due to cloud cover. Wet and cloudy conditions prevailed over the northern ASEAN region overnight. A few hotspots were detected in Viet Nam, but no significant smoke plumes were observed.
Weather and Haze Outlook
Over the next few days, dry conditions are forecast over many parts of the southern ASEAN region, apart from the northern parts of Peninsular Malaysia, Sumatra and Borneo, where showers are expected. The hotspot and smoke haze situation may improve in areas experiencing showers, but 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 southwest, except over parts of Borneo, where the winds are forecast to be light and variable in direction. Meanwhile, wet weather is forecast to continue over the northern ASEAN region. The hotspot and smoke haze situation over the region is expected to remain subdued. The prevailing winds over the Mekong sub-region are forecast to blow mainly from the southwest to west, while the winds over the Philippines 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.