HANOI, July 5 (Xinhua) -- Vietnam has raised alert on possible flash flood in northern area due to heavy rains over the past five days and increasing water flow from China, said Vietnam's National Center for Hydro-Meteorological Forecasting on Tuesday.
In several areas, precipitation went high, such as in northern Dien Bien province (210 millimeters), northern Ha Giang province (380 millimeters), northern Quang Ninh province (550-615 millimeters) and northern Thai Nguyen province (185 millimeters), local Tuoi Tre (Youth) online newspaper quoted the center as saying.
Due to downpours, water flow from China running into Vietnam has also increased, especially in branch of China's Yunnan-originating Da River in northern Lai Chau's hydropower reservoir.
Torrential rain has battered several provinces in China in four days, killing 93 people and 19 others were missing.
The center said that torrential rain is forecast to occur in Vietnam's northern mountainous and midland areas from Tuesday to Thursday.
In Vietnam, flash floods have been reported in Quang Ninh and Thai Nguyen provinces over the past days.
There is high risk that flash flood will happen in small rivers and streams, landslides in mountainous areas while flood will take place in lowland, said the center.
From last Friday till now, floods caused by heavy rain have left seven dead and missing. Among the toll, two were washed away and found dead in Thai Nguyen province, three were washed away and killed in Quang Ninh province while two remain missing during flood in Ha Giang province, local media reported.