Haze Conditions Persist in the Indo-China Peninsula

According to the latest monitoring data from the Fengyun satellite, significant biomass burning hotspots have been detected in the Indo-China Peninsula, leading to a substantial increase in atmospheric particulate matter concentrations. From March 28 to 30, apart from the northern part of Myanmar experiencing notable precipitation (Figure 1), no significant rainfall was observed in other countries within the Indo-China Peninsula. Additionally, most regions in the Indo-China Peninsula experienced weak wind conditions (Figure 2), resulting in poor atmospheric dispersion conditions, which are conducive to pollutant accumulation. It is expected that, influenced by biomass burning, over the next three days, areas including eastern Myanmar, northern Thailand, central and northern Laos, central and northern Vietnam, and northern Cambodia will experience haze, accompanied by widespread low visibility conditions.

Figure 1: Accumulated Precipitation from 08:00 on March 28 to 08:00 on March 31, 2026 (Beijing Time), shaded areas indicate precipitation amounts in millimeters (mm)

Figure 2: Forecast of 10-meter Wind Field at 20:00 (Beijing Time) on March 28, 2026 (Unit: m/s)

https://www.wmc-bj.net

Author: Jiang Qi Che Jinning                   Reviewer: Guan Yue Hua Cong 

English reviewer:Wang Yi                                                                   Issue approver:Dai kan