- 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, the regional haze situation is updated three times a day at 0200 UTC, 0500 UTC and 0900 UTC from 7 Jan 2020.
Regional Haze Situation
Latest Weather and Haze Situation
The weather remained dry over the Mekong sub-region. Isolated hotspots were detected mainly in Thailand and Cambodia overnight. Hazy conditions continued to be observed in northern and central Thailand, Cambodia and parts of southern Viet Nam. Unhealthy air quality readings were also reported in many areas in Thailand. In the southern ASEAN region, there were scattered showers over Kalimantan and isolated showers elsewhere.
Weather and Haze Outlook
The dry conditions over the Mekong sub-region are forecast to persist. The prevailing winds are expected to remain light and continue blowing from the northeast or southeast over the next few days. Under these conditions, an escalation of hotspot activities and further accumulation of smoke haze can be expected in the sub-region. In the southern ASEAN region, scattered showers can be expected. The prevailing winds over areas north of the equator are forecast to blow from the northeast or east, while winds over areas south of the equator are likely to be variable in direction.
- 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.