On the evening of July 21, the National Center for Hydro-Meteorological Forecasting issued two consecutive warnings about the risk of flash floods, landslides and land subsidence over a wide area in the northern provinces, after heavy rains lasting for many hours.
Accordingly, within the past 12 hours (from 8am to 8pm), many localities in Lang Son, Quang Ninh, Bac Ninh and Hai Phong recorded rainfall from 65 to 179mm.
Specifically, Mau Son (Lang Son) had 65.2mm of rain; Co To (Quang Ninh) 179mm; Cat Ba (Hai Phong) 107.2mm. Soil moisture models show that many areas are close to or have reached a saturated state, over 85%.
It is forecasted that in the next 3-6 hours, the above areas will continue to have additional rain from 20-60mm, some places will exceed 90mm, causing the risk of flash floods and landslides on steep slopes in many communes and wards such as Kien Moc, Mau Son (Lang Son); Co To, Van Don (Quang Ninh); Cat Hai, Do Son (Hai Phong) ...
On the same day, similar warnings were issued in Phu Tho and Thanh Hoa provinces.
In the past 6 hours, places such as Van Mai (Phu Tho) recorded 94mm of rain; Phu Le (Thanh Hoa) 47.4mm. Soil moisture in many places is also at a dangerous level.
The warning shows that rain will continue for the next 3-6 hours, with an amount of 30-50mm, some places over 80mm. Mountainous districts such as Muong Lat, Quan Son, Nhu Xuan (Thanh Hoa), or Mai Ha, Yen Tri (Phu Tho) are on the list of high-risk areas for flash floods and landslides.
The meteorological center assessed that flash floods and landslides can seriously affect the environment, threaten people's lives, clog traffic, destroy civil works and cause great damage to production and the socio-economy.
Local authorities are required to urgently review flow bottlenecks and vulnerable areas and proactively deploy preventive measures and evacuate people when necessary.