The rainfall could cause flash floods and landslides in the northern mountainous provinces, central and western highlands, as well as generate risks of first-level disasters due to torrential downpours, lightning and hail, he added.

Meanwhile, showers and thunderstorms are predicted to occur in Hanoi, with the lowest temperature between 25 and 28 degrees Celsius and the highest between 31 and 34 degrees Celsius.

Many streets in downtown Hanoi were flooded on Monday evening due to the heavy rainfall, which, according to VNA news agency, hindered transportation for hours. In some cases, the water level reached 20 to 30 centimeters.

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