- Alert Level 2 | Activation of Alert Level 2 for the Mekong Sub-region
- With the activation of Alert Level 2 for the Mekong sub-region, from 15 Jan 2021 the regional haze situation will be updated thrice daily at 0200 UTC, 0500 UTC and 0900 UTC.
Regional Haze Situation
Latest Weather and Haze Situation
Weather conditions over the Mekong sub-region remained dry today, with cloudy conditions observed over Cambodia and parts of Viet Nam. Scattered hotspots were detected throughout the Mekong sub-region. Additionally, clusters of hotspots were detected in Cambodia, Thailand and Viet Nam. Moderate smoke haze was observed in the vicinity of hotspots in northern Viet Nam, northern Myanmar and central Thailand. Air quality readings in the Unhealthy range were reported in the central Mekong sub-region. However, the full extent of the smoke haze situation over Cambodia and parts of Viet Nam could not be ascertained due to cloud cover. Isolated to scattered showers were observed elsewhere over the ASEAN region.
Weather and Haze Outlook
The dry weather conditions are forecast to continue over the Mekong sub-region in the coming days with the exception of parts of southern Viet Nam, and Cambodia where isolated showers are expected. Isolated to scattered showers are forecast for the rest of the ASEAN region. The prevailing winds are forecast to be light and variable in direction over the Mekong sub-region, and to blow mainly from the west or northeast over the rest of the ASEAN region.
- 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.
- The regional haze situation is updated thrice daily at 0200 UTC, 0500 UTC and 0900 UTC upon activation of Alert Level 2. Updates at 0200 and 0500 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.