According to the National Center for Hydro-Meteorological Forecasting, in the past 18 hours (from 2:00 p.m. on June 9 to 8:00 a.m. on June 10), the Northern provinces have had moderate rain, heavy rain, and some places with very heavy rain such as: Ha Lang (Ha Giang) 144.2mm; Muong Khieng (Son La) 128.6mm; Pa Ve Su (Lai Chau) 116.4mm;...
Soil moisture models show that some areas in the above provinces are nearly saturated (over 85%) or have reached a saturated state.
In the next 3 - 6 hours (from 8:40 a.m. on June 10), the Northern provinces will continue to have rain with accumulated rainfall ranging from 15 - 40mm, some places over 60mm.
In the next 6 hours (from 8:40 a.m. on June 10), there is a risk of flash floods on small rivers and streams, landslides on steep slopes in many districts.

The warning level of natural disaster risk due to flash floods, landslides, and land subsidence due to heavy rain or water flow is level 1.
Flash floods and landslides can have a very negative impact on the environment, threatening people's lives; causing local traffic congestion, affecting the movement of vehicles, civil works, and the economy, causing damage to production activities and socio-economic activities.
The meteorological agency recommends that local authorities pay attention to reviewing bottlenecks and vulnerable locations in the area to take preventive and response measures.