Due to the influence of the low pressure trough, it is compressed and gradually moves south because the northern continental high pressure has an axis through the North, combined with the high-altitude wind convergence area, from the night of 22 to 23 May, Lao Cai province will have moderate rain, heavy rain and very heavy rain.
Heavy rain accompanied by thunderstorms and tornadoes has caused damage to houses and agricultural production in some places.

According to a quick report from Van Ban and Bao Thang districts, the initial preliminary damage situation is as follows: The total area of crop damage is about 1.61ha, of which, the area of damaged rice: 0.61ha, the area of damaged cinnamon trees is 0.6ha.
Nam Ma - Ta Chu route collapsed on negative slope 1 at a location about 25m long, with a landslide about 0.5m deep into the road surface; Nam Trang route collapsed on negative slope 1 at a location about 15m long, with a landslide about 0.5m deep into the road surface.

In particular, due to upstream rain causing floods to rush to Sim San stream, the Sim San temporary bridge in Y Ty commune (Bat Xat) has drifted. Currently, 3 villages of Sim San 1, Sim San 2, Hong Ngai are temporarily cut off; estimated damage is more than 550 million VND.
The Steering Committee for Natural Disaster Prevention, Control and Search and Rescue of Van Ban, Bao Thang, Bat Xat, Sa Pa districts... has directed specialized agencies, People's Committees of communes and towns to organize inspections and statistics on the damage situation, direct local forces to help households with damage to agriculture and forestry and clear traffic roads to ensure safety for people and stabilize people's lives.
In Yen Bai, many districts such as Van Yen, Luc Yen, Yen Binh, Tran Yen also recorded heavy rain this morning (May 23).
Accordingly, in Tan Phuong commune, Luc Yen district, the measured rainfall of more than 135mm caused the temporary bridge (a bridge serving the construction of the main bridge) to drift, temporarily cutting off the locality from the district center. Heavy rain caused water in streams and streams to rise, flooding the spillways, affecting people's travel.


In Yen Bai city alone, heavy rain caused water to rise, flooding many households. Flooding occurred in many places, including the center of Yen Bai city. Water flooded into Yen Thinh market, forcing traders to stop trading, and goods were severely affected.
The industrial park in the south of the city is also heavily flooded. Functional forces were mobilized to guide traffic and support deeply flooded areas.