Regional Haze Situation
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Latest Weather and Haze Situation
Showers were observed mostly over the southern and eastern parts of the Mekong sub-region while conditions were cloudy over the northern parts of the sub-region. Elsewhere in the northern ASEAN region, dry conditions were observed. Based on latest satellite observations, isolated hotspots were mostly detected in Thailand, Cambodia, Viet Nam and the Philippines, as well as the southern parts of Myanmar. Moderate smoke haze was observed in the central parts of Thailand and the southern parts of Viet Nam. Due to extensive cloud cover, the full extent of the hotspot and smoke haze situation over the Mekong sub-region could not be determined.
Showers were observed over most of the southern ASEAN region, except for the northern and central parts of Borneo and the northern parts of Peninsular Malaysia where conditions were drier. A few hotspots were mostly detected in Borneo and Sulawesi. A moderate smoke plume was observed to emit in the northern coastal areas of Sarawak. Due to cloud cover, the full extent of the hotspot and smoke haze situation over the region could not be determined.
Weather and Haze Outlook
Over the next few days, showers are expected mostly over the northern and central parts of the Mekong sub-region, and the southern parts of the Philippines. Elsewhere, dry conditions are forecast to persist which could remain favourable for elevated hotspots and smoke haze activities, with a risk of transboundary haze occurrence, to continue. The prevailing winds over the northern Mekong sub-region are likely weak and variable in direction, and blow from the southeast or southwest over the rest of the sub-region. The prevailing winds over the Philippines are expected to blow from the northeast.
Wet weather is expected to persist over most of the southern ASEAN region in the coming days which will help to suppress the overall hotspot and smoke haze situation. However, drier conditions are forecast over the northeastern parts of Borneo and the northern parts of Peninsular Malaysia, where isolated hotspots and smoke plumes may still occur. The prevailing winds are forecast to be light and variable in direction over most region except for Peninsular Malaysia where the prevailing winds are forecast to blow 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.