Map Filter Collapse
Select Date
icon-calendar
Overlays
MSSModerate Haze MSSDense Haze MSS 2500 ft Wind MSSLow Confidence Hotspot MSSMedium Confidence Hotspot MSSHigh Confidence Hotspot

MSS Wind Speed (km/h) MSS Rainfall (mm)

Latest Weather and Haze Situation

Dry and cloudy conditions prevailed over most of the northern ASEAN region today except over central and northeastern parts of the Mekong sub-region where isolated showers were observed. Widespread hotspots were detected in Myanmar and Lao PDR while scattered hotspots were detected elsewhere in the Mekong sub-region. Widespread moderate to dense smoke haze was observed in the vicinity of clusters of hotspots in eastern Myanmar drifting into northern Thailand and northern Lao PDR, from northern Thailand into northern Lao PDR, as well as from northern Lao PDR into northern Viet Nam based on the satellite imagery. Moderate haze was also observed to envelop large parts of Myanmar and eastern Thailand. Moderate smoke plumes were observed to emanate from hotspot clusters in southern Lao PDR and northeastern Cambodia. Slight localised smoke plumes were also seen to be emitting from hotspots in southern Viet Nam. Extensive cloud cover over the central and northeastern parts of the Mekong sub-region made it hard to discern the full extent of the hotspot and smoke haze situation there. Many air quality stations in the northern, central and eastern Mekong sub-region continue to report Unhealthy to Very Unhealthy levels.

Elsewhere in the ASEAN region, some isolated showers were observed except over northern Sumatra, parts of Borneo, Peninsular Malaysia and Singapore. Isolated hotspots were detected mainly in eastern parts of Borneo, Sumatra and Peninsular Malaysia with slight localised smoke plumes observed over a few hotspots in eastern Kalimantan and eastern Peninsular Malaysia.

Weather and Haze Outlook

In the coming days, the central and northeastern parts of the Mekong sub-region are forecast to experience increase showers, which may help to briefly improve the elevated hotspot and smoke haze situation there. The hotspot and smoke haze activities may persist particularly in the northwestern parts of the Mekong sub- region where the dry conditions are expected to continue and the risk of transboundary haze occurrence still remains. The prevailing winds north of the Equator are forecast mostly to be northeasterlies to easterlies with the exception of the northern parts of the Mekong sub-region where the winds are expected to be light and variable in direction.

Meanwhile, an increase in shower activities is expected over the southern ASEAN region in the coming days, except for Peninsular Malaysia and Singapore which are likely to remain dry. The hotspot activity in the region is expected to remain low, however isolated hotspots and localised smoke plumes may still occur in the dry areas. The winds south of the Equator are forecast to blow from the west to northwest.

  • 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.