Regional Haze Situation
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Latest Weather and Haze Situation
It was dry over most part of the Mekong sub-region overnight except for some showers over the southern parts of the sub-region. Isolated to scattered hotspots were detected in the sub-region. Moderate to dense haze was observed over the central and northern parts of Myanmar, the northern parts of Thailand and the northern parts of Lao PDR. Slight haze was also observed over southern parts of Lao PDR and Myanmar, the northern parts of Cambodia, as well as eastern and central parts of Thailand. Most air quality stations in the northern and central parts of the Mekong sub-region reported Moderate to Unhealthy levels. Due to extensive cloud cover, the full extent of the hotspot and smoke haze situation in the Mekong sub-region could not be determined.
Over the southern ASEAN region, scattered showers were observed overnight. The hotspot and haze situation remains subdued over the region.
Weather and Haze Outlook
Over the next few days, dry conditions are expected to over most parts of the Mekong sub-region, except over the eastern parts of the sub-region where showers are forecast. The hotspot and smoke haze situation may escalate over areas in the Mekong sub-region experiencing prolonged dry conditions, with a continued risk of transboundary haze occurrence. The prevailing winds over the northern ASEAN region are expected to remain strong and blow from northeast to east, except over the northwestern and central parts of the Mekong sub-region where winds are light and variable in direction.
Meanwhile, showers are expected over the southern ASEAN region. The overall hotspot activity in the region is expected to remain low. The prevailing winds over this region are expected to blow from the west to northwest except for winds over Peninsular Malaysia and Singapore which are forecast to blow mainly from the northeast.
- 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.