According to the meteorological agency, in the next 3 to 6 hours (from 6:15 p.m. on July 26), Hanoi city and neighboring areas will have moderate to heavy rain, with total rainfall ranging from 20 - 40mm, some places even higher.
This rain is warned to cause widespread localized flooding. The common flooding level is forecast to be from 0.1m to 0.3m, the flooding time can last from 20 - 30 minutes, some low-lying areas can be flooded deeper and longer.

Heavy rain is forecast to greatly affect traffic, people need to monitor information and have appropriate travel plans to avoid flooded areas. In addition, warnings are also noted about the risk of landslides in mountainous areas in the suburbs such as Ba Vi and Son Tay. The risk level of natural disasters due to flooding is determined at level 1.