Regional Haze Situation
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2500 ft Winds
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Latest Weather and Haze Situation
The northern ASEAN region remained dry overnight. From the overnight satellite pass, few hotspots were detected in Lao PDR and Viet Nam. Based on the latest satellite imagery, moderate to dense haze was observed to envelop over large parts of Myanmar, northern and eastern Thailand, as well as northern and southern Lao PDR. Many air quality stations in the northern and eastern parts of the Mekong sub-region reported Unhealthy levels, with a few stations reporting Very Unhealthy levels. Low visibility was reported by ground observations in the northern parts of the sub-region. The full extent of the hotspot and smoke haze situation over the northwestern and southeastern parts of the Mekong sub-region cannot be determined due to cloud cover.
Isolated showers were observed over the southern ASEAN region overnight. The hotspot count stayed low and no significant smoke plumes were observed from satellite imagery.
Weather and Haze Outlook
Persistent dry weather is forecast over the northern ASEAN region over the next few days, apart from some showers in the northeastern parts of the Mekong sub- region and the northern parts of the Philippines. The elevated hotspot and transboundary haze situation is expected to continue, especially over the northern parts of the sub-region. The prevailing winds over the northern ASEAN region is likely to blow from the east to southwest.
The southern ASEAN region is forecast to remain, with the overall hotspot and smoke haze situation expected to be subdued. However, few to isolated hotspots with localized smoke plumes may still occur. The prevailing winds over areas south of the Equator are likely to be light and 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.