Heavy rain of 250 mm, 7 provinces at risk of flash floods, landslides

Northern Vietnam faces a severe weather threat as heavy rains are expected to lash the region from July 9-10. The National Center for Hydro-Meteorological Forecasting has issued warnings for widespread downpours, with rainfall potentially reaching up to 250 mm in mountainous areas, midlands, and Quang Ninh province.

Several provinces in the northern mountainous and midland regions have already endured substantial rainfall. Between 7 PM on July 8 and 3 AM on July 9, some areas recorded over 100 mm of rain. Notable amounts included 130 mm in Muong Mùn (Dien Bien), 151.8 mm in Muong Gion (Son La), 130 mm in Suoi Giang (Lao Cai), and 107.6 mm in Phuc Yen (Tuyen Quang).

The forecast indicates that from July 9 through July 10, these areas, along with Quang Ninh, will experience moderate to heavy rain and thunderstorms, with accumulations typically ranging from 60 to 120 mm, and isolated areas receiving over 250 mm. The intensity of rain, exceeding 100 mm within a 3-hour period in some locations, raises concerns about localized flooding.

Furthermore, seven northern provinces have been identified as being at high risk of flash floods and landslides. These include Lai Chau, Dien Bien, Son La, Lao Cai, Tuyen Quang, Thai Nguyen, and Lang Son. Soil moisture levels in some of these provinces are already at or near saturation (above 85%). The forecast warns of potential risks including lightning, hail, and strong winds during thunderstorms. Other parts of the North and Thanh Hoa province can expect scattered showers and thunderstorms with less intense rainfall.