According to the National Center for Hydro-Meteorological Forecasting, last night and early this morning (September 28), the area from Thanh Hoa to Quang Ngai had moderate rain, heavy rain, some places had very heavy rain and thunderstorms. Heavy rain forecast in the next 24-48 hours, from the morning of September 28 to September 29, there will be heavy to very heavy rain: The area from Thanh Hoa to the North of Quang Tri will have a total rainfall of 200-400mm, locally over 600mm; warning of heavy rain intensity >100mm/1h. The area from South Quang Tri to Quang Ngai will have total rainfall of 100-300mm, locally over 400mm.
The Northern and Southern Delta have total rainfall of 150-300mm, locally over 500mm. Other places in the North will have moderate rain, heavy rain with total rainfall of 100-200mm, locally over 350mm.
To proactively prevent and combat the safety of irrigation works and prevent flooding and inundation, minimizing damage caused by heavy rain, the Department of Management and Construction of Irrigation Works has issued an official dispatch on ensuring the safety of irrigation works, preventing flooding and inundation due to heavy rain affected by storm No. 10 Bualoi in provinces and cities in the Northern, North Central regions and from Da Nang to Quang Ngai.
Accordingly, the Department proposed to closely monitor hydrometeorological forecasts and floods, continue to inspect and review key irrigation works at risk of incidents to proactively deploy response plans to ensure the safety of works.
Special attention should be paid to the safety of irrigation reservoirs under construction (catching for items of underground works, underground works, water supply works; ready to relocate people, machinery, construction equipment at risk of being affected...). For vulnerable and unsafe irrigation lakes, it is necessary to consider limiting or not storing water.
Proactively organize the operation of reservoirs according to approved operating procedures; reservoirs with floodgates, adjust the water level of the reservoir to proactively receive floodwaters, ensure absolute safety of works and not discharge unusual floods that cause unsafety to downstream areas. Strictly implement early warnings to people in downstream areas before reservoirs release floodwaters and when there is a risk of incidents.
In addition, it is necessary to identify a specific list of key projects at risk of incidents during heavy rain, pay attention to small lakes managed by the commune level; update and deploy response plans for heavy rain, ensure the safety of the project in accordance with forecasts of floods and the status of the project.
needs to specifically isolate areas at risk of flooding and inundation when there is heavy rain; urgently organize thorough water drainage and urgently operate irrigation works to drain water to minimize damage caused by flooding and inundation.
For reservoirs with regulating valve gates, it is necessary to strictly implement a specialized hydrometeorological monitoring regime, calculate the water flow to the reservoir, and estimate the possibility of increasing the lake water level to proactively operate flood-proof reservoirs and store water for production. After the end of the raining period, it is necessary to re-evaluate the implementation of the operation process, the valve door operation process; report to the competent authority for approval of the adjustment (if any).
The Department also requested localities to organize 24/7 duty during the period of rain and flood, arrange permanent human resources at the project at risk of incidents; promptly handle unusual situations right at the first hour and deploy response according to the "four on-site" motto when there are incidents at the project.
