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Regional Haze Update

The strengthening of the northeast monsoon is bringing stronger northeasterly winds over the South China Sea. Dry weather conditions continued to persist over the Mekong sub-region, and isolated hotspots were detected mainly in Thailand, Lao PDR and Vietnam. In the southern ASEAN region, wet weather conditions were observed in the vicinity of the equatorial vortex over the South China Sea. In the next few days, northeasterly winds are expected to persist over the northern ASEAN region while winds over the southern ASEAN region will shift to blow from the west.

Updated 5:00 PM 9 Dec

  • 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.