According to the National Center for Hydro-Meteorological Forecasting, between 7 p.m. on July 27 and the morning of July 28, rainfall exceeded 100 mm at several monitoring stations, including 148.6 mm in Do Luong (Nghe An), 125 mm in Dong Viet (Bac Ninh) and 122.8 mm in Trieu Son (Thanh Hoa).
Scattered showers and thunderstorms also occurred across the Central Highlands and the Southern region, with Bao Loc in Lam Dong recording 136.6 mm of rainfall.
From July 28 through the night of July 29, the Central Highlands and Southern region are forecast to see moderate to heavy rain and thunderstorms, with rainfall of 50–110 mm and isolated areas receiving more than 170 mm.
Meanwhile, Nghe An, Ha Tinh, Hue City and the South-Central coastal region are expected to experience scattered showers and thunderstorms, with rainfall ranging from 10 mm to 30 mm and isolated areas exceeding 70 mm.
The weather agency also warned of localized rainfall exceeding 100 mm within three hours, increasing the risk of flash floods, landslides, lightning, hail and strong winds.
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