Dams in Ha Tinh respond to forecast of 500 mm rain

(Baohatinh.vn) - Due to the influence of a tropical depression that is likely to strengthen into a storm, Ha Tinh is forecast to have heavy rain with rainfall of up to 500 mm. Currently, dam management units have proactively released spillways to regulate water in response.

Ke Go Lake is being flooded to regulate water in response to heavy rain.

At 10:00 a.m. on August 29, Nam Ha Tinh Irrigation Company Limited was regulating water from Ke Go Lake (Cam Due Commune, Ha Tinh Province) through Doc Mieu spillway with a flow rate of 90 ^m3 /second. The water level of Ke Go Lake at this time was at 27.94/32 m, equivalent to a capacity of 223.65/345 million ^m3 of water.

The management and operation unit of Ke Go Lake started regulating water at 7am on August 27 when the lake water level rose rapidly due to heavy rain after the storm.

Right after storm No. 5, at this time, in the Hoang Sa special zone, there is a tropical depression active, forecast to have the potential to strengthen into a storm and Ha Tinh is in the area directly affected when the storm makes landfall.

Video : Ke Go Lake is overflowing with a flow rate of 90 ^m3 /second.

Due to the influence of a tropical depression that is about to strengthen into a storm, Ha Tinh will have a period of heavy rain with rainfall forecast to reach 500 mm.

Director of Nam Ha Tinh Irrigation Company, Tran Manh Cuong, said: Before the forecast of heavy rain in Ha Tinh, the unit maintained the regulation of water through Doc Mieu spillway to lower the water level in the lake first, reducing the pressure somewhat before continuing to "receive" a large amount of water flowing into the lake.

In the coming days, the unit will continue to closely monitor weather developments and forecasts from hydrometeorological agencies to adjust the increase/decrease of spillway discharge, ensuring safety for the project and downstream areas.

Due to the influence of a tropical depression that is about to strengthen into a storm, Ha Tinh will have a period of heavy rain with rainfall forecast to reach 500 mm.

In addition to Ke Go Lake, at this time, Nam Ha Tinh Irrigation Company Limited is also regulating water through the spillway for many other large reservoirs, such as Boc Nguyen (Cam Lac commune) with a spillway flow of 20 ^m3 /second; Song Rac Lake (Cam Lac commune) with a spillway flow of 110 ^m3 /second; Da Han Lake (Huong Binh commune) with a spillway flow of 40 ^m3 /second.

Kim Son Lake, Thuong Song Tri Lake (in Ky Hoa Commune), Tau Voi Lake (Vung Ang Ward)..., are also being overflowed with a flow rate of 3 - 5 ^m3 /second.

Heavy rains in recent times have also caused reservoirs such as Da Cat, Khe Lau, Khe Nay, Dam Mung, Ma Leng, Dam Hoi, Nha Lao, Con Troi, Khe Dai... to be filled with water and are currently flowing freely over the spillway.

The water level of Boc Nguyen Lake is at an elevation of 18.78/20 m, equivalent to a capacity of 19.59/24 million ^m3 of water.

Similarly, to proactively prepare for forecasts of heavy rain with rainfall of up to 500 mm, Ho Ho Hydropower Plant is currently releasing spillway at a flow rate of 54 ^m3 /second. The water regulation is aimed at lowering the water level in the lake, increasing flood prevention capacity, and ensuring the safety of the project and downstream areas.

Ho Ho Hydropower Plant releases spillway to increase flood prevention capacity.

At 12:00 on August 29, water flowed into the plant's reservoir at a rate of 24 ^m3 /second, the water flow to generate electricity from the two generators was 32 ^m3 /second, and the water level of the reservoir was at an elevation of 66.04 m.

“At this time, the water level in the downstream area is quite low, the plant's spillway to regulate water does not affect residential areas. Early spillway release will help the unit be more proactive when forecasting complicated weather in the coming days,” said Mr. Nguyen Ba Tuan - Deputy Director of Ho Ho Hydropower Plant.

As of noon on August 29, the water level of Ngan Truoi Lake (Vu Quang Commune) - the largest reservoir in Ha Tinh - was at an elevation of 37.49/52 m, equivalent to a capacity of 292.03/775.7 million ^m3 .

The water level in this large reservoir is quite low, so the amount of rain this time is not a concern. However, the reservoir management unit will closely monitor the weather situation to make appropriate adjustments.

The water level of the reservoir at Ho Ho Hydropower Plant is currently at 66.04 m.

Discussing the weather situation in the coming days, Director of Ha Tinh Hydrometeorological Station Tran Duc Ba said: Due to the influence of a tropical depression that is likely to strengthen into a storm, from the night of August 29, the sea area of ​​Ha Tinh will have strong thunderstorms, winds gradually increasing to level 6 - 7, the area near the storm's center will have strong winds of level 8, gusting to level 10; waves 2 - 5 m high, rough seas. Ships operating in the above-mentioned dangerous areas are likely to be affected by thunderstorms, whirlwinds, strong winds, and big waves.

In particular, from the evening and night of August 29 to August 31, Ha Tinh area will have heavy to very heavy rain and thunderstorms. Rainfall is generally 150 - 350mm, in some places over 550mm. Heavy rain also causes rivers in Ha Tinh area to flood and there is a high risk of flooding in low-lying areas along rivers, urban areas, and densely populated areas...

Proactively releasing spillways to regulate water is essential to cope with heavy rain in the coming days.

According to the assessment of the Director of the Ha Tinh Hydrometeorological Station, after the recent rains, the reservoirs and dams in the whole province have basically filled with water. It is very necessary for management units to proactively divert water before heavy rains to increase flood prevention capacity, ensuring the safety of works and downstream areas.

Source: https://baohatinh.vn/ho-dap-o-ha-tinh-ung-pho-truoc-du-bao-mua-500-mm-post294648.html