Regional Haze Situation








Latest Weather and Haze Situation
Scattered showers were observed over most parts of the ASEAN region, except over the central and southern parts of Sumatra where it was relatively drier. Few to isolated hotspots were detected in Thailand, Myanmar, Lao PDR, Viet Nam and Sumatra, however no significant smoke plumes were observed from recent satellite imagery.
Weather and Haze Outlook
Over the next few days, showers are expected to continue over most parts of the ASEAN region while drier conditions are forecast over the central and southern parts of Sumatra. The overall hotspot and smoke haze situation is expected to remain subdued, however isolated hotspots and localised smoke plumes may still occur over region experiencing drier conditions. The prevailing winds over the northern ASEAN region are expected to blow from the east to southwest, except over the Mekong sub-region where the winds are forecast to be light and variable in direction. For the southern ASEAN region, the prevailing winds are expected to blow from east to south.
- 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.