Hazy conditions continued to persist over the Mekong sub-region. However, there was some improvement to the haze situation in parts of central and northeastern Thailand, central Lao PDR and northern Viet Nam with the occurrence of showers in these areas today. Based on the latest Himawari-8 satellite images between 0640 and 0800 UTC on 17 February 2019, widespread moderate to dense smoke haze continued to be observed from hotspots over Cambodia, Lao PDR and Thailand. Some smoke haze were observed to be blown to the northeast by the prevailing winds to affect central Viet Nam. Isolated hotspots with smoke haze were also detected in Myanmar. Over the next few days, while the Mekong sub-region is forecast to remain generally dry, there could be still be some isolated showers over a few areas. The prevailing winds are forecast to continue blowing from the southeast or southwest, and a build-up of smoke haze over the northern parts of the Mekong sub-region can be expected.
Dense Haze Moderate Haze Hotspots 2500 ft Wind Wind Speed (km/h)

Latest Weather and Haze Situation

It was generally dry over the Mekong sub-region with isolated showers over some areas today. Widespread smoke haze continued to be observed over Cambodia, Lao PDR and Thailand, with denser smoke haze observed in parts of Cambodia and southern Lao PDR. Smoke haze was observed to be blown by the prevailing southwest winds to affect central Viet Nam. Isolated hotspots with smoke haze were also observed in Myanmar. In contrast, it was wet over the southern ASEAN region.

Weather and Haze Outlook

The prevailing dry weather and hazy conditions in the Mekong sub-region is forecast to persist. There could still be some showers over parts of the region in the next few days. With prevailing winds over the Mekong sub-region forecast to continue blowing from the southeast or southwest, there may be a build-up of the smoke haze over the northern parts of the region. For the southern ASEAN region, wet conditions are expected, with the prevailing winds blowing mainly from the northeast or northwest.

  • The hotspots depicted in the map are derived from the NOAA satellite and they represent locations with possible active fires. Hotspots may go undetected due to cloudy conditions or incomplete satellite pass.
  • The 2500 ft winds (depicted by arrows) are model analysis winds.