The 4:00 p.m. bulletin on September 29 of the Thanh Hoa Hydrometeorological Station said that at noon on September 29, storm No. 10 had reached Upper Laos and weakened into a tropical depression, no longer directly affecting the mainland.
However, due to the northern edge of the tropical convergence zone and high-altitude wind convergence, in the next 24 hours, Thanh Hoa will have thunderstorms and strong winds. Coastal areas (Rhea Son, Hau Loc, Hoang Hoa, Sam Son, Quang Chinh, Nghi Son; Hon Ne, Hon Me, Hon Mieu, Hon Doat islands) wind level 5, sometimes level 6, gust level 7, waves 1.02.5 m, rough seas. In addition to the wind level 6, gust level 89, waves 2.53.5 m, rough seas. Risk level due to strong winds at sea: level 2. Forecast for September 30, the wind will decrease.
Thanh Hoa Tourism Station recommends that localities closely monitor the bulletin, review evacuation plans in low-lying areas along rivers, reinforce embankments, check electrical safety; limit overflow underpasses and landslide areas. Boats and cages should take safe shelter and stop operating when there is a thunderstorm warning.
Thanh Hoa Hydrometeorological Station also issued an emergency flood warning on Yen River and Chu River and warned of strong winds and big waves at sea; Chuoi Station may overcome the historic flood tonight.
At 1:00 p.m. on September 29, the water level on the rivers was rising rapidly. On Chu River: Bai Thuong station 18.54 m (above BD3: 0.54 m), Xuan Khanh station 9.18 m (above BD1: 0.18 m). On Yen River: Chuoi Station 4.48 m (above BD3: 0.98 m). On the Ma River: Ly Nhan station 7.84 m (under BD1: 1.66 m), Giang station 4.42 m (above BD1: 0.42 m).
Len River at Len Station 4.21 m (above BD1: 0.21 m); Buoi River at Kim Tan 8.77 m (above BD1: 1.23 m); Cau Chay River at Xuan Vinh 7.94 m (above BD1: 0.06 m).
In the next 24 hours, the water level will continue to rise. Yen River at Chuoi Station is forecast to reach 4.85 m at around 18:00, exceeding the historical flood mark by 0.38 m (4.47 m on October 23, 1978).
The middle and upper reaches of the Chu River are at level 3 and above level 3; the downstream of the Chu River (Xuan Khanh) will increase to level 2 at about 620 and will continue to increase. Cau Chay River (Xuan Vinh) is likely to reach BD2 at 7:12 p.m.
The Ma River (Ly Nhan) reached BD1 at 5:18 p.m.; the downstream of the Ma River (Giang) and the Len River (Len) rose to BD2 and continued to rise.
Buoi River (Kim Tan) is likely to be on BD2 at 1-21 p.m. From September 29 to October 1, flood peaks on the Chu River, Ma River and small rivers (Len, Buoi, Am, Yen, Cau Chay) are generally BD2'BD3, some places above BD3. Flood disaster risk level: level 12.
