Storm No. 12 likely to weaken into a tropical depression before making landfall

DNO - On October 18, the Department of Hydrometeorology (Ministry of Agriculture and Environment) made an early assessment of the possible impact of storm Fengshen on the weather in our country's mainland.

Forces of Hoa Khanh ward supported people in Me Suot street area to raise electronic devices to avoid flooding on the morning of October 18.

Accordingly, storm Fengshen will enter the East Sea tomorrow afternoon or evening (October 19), becoming Vietnam's 12th storm of 2025. The storm will move mainly in the west-northwest direction with a tendency to intensify.

By around October 22, when moving into the northern area of ​​Hoang Sa special zone, storm No. 12 will have the strongest wind speed of level 11, gusting to level 13.

However, the East Sea is currently under the influence of cold air. The cold air mass is blocking the western part of storm No. 12, making it less likely for the storm to move westward and its intensity will gradually weaken.

Storm No. 12 is likely to weaken into a tropical depression before affecting the mainland of the Central region.

Although the possibility of maintaining the storm's intensity to affect the Central mainland is not high, but with the impact of the storm circulation combined with cold air, in the coming days, in the northern and central areas of the East Sea (including Hoang Sa special zone), the Gulf of Tonkin, the sea area from Quang Tri - Quang Ngai will often have strong winds from level 6-8 or higher, waves from 3-4m high, and rough seas.

Circulation following storm No. 12 combined with the impact of cold air will cause moderate to heavy rain over a wide area from October 23 to 26.

In addition, due to the influence of the circulation after storm No. 12 combined with the impact of cold air, from October 23 to 26, on the mainland from Ha Tinh to Quang Ngai, there will be a widespread period of moderate to heavy rain.

The Department of Hydrometeorology noted that the interaction between cold air and storms is one of the types of interaction with many scenarios. If the storm comes first, then the cold air comes later, or the storm and cold air affect each other, it will cause very heavy rain; but if the cold air comes first, then the storm comes later, the rain will not be too heavy.

Currently, rain scenarios as well as storm impacts on mainland Vietnam depend heavily on the development of cold air, so it is necessary to closely monitor the simultaneous development of the storm's path and the impact of cold air.

Warning of heavy rain and floods on rivers from Quang Tri to Quang Ngai

According to the forecast of the National Center for Hydro-Meteorological Forecasting, around the morning of October 19, cold air will affect the Northeast region.

From October 20 to 22, the cold air will strengthen, affecting other places in the Northeast and North Central regions, then affecting some places in the Northwest and North Central regions.

Due to the influence of cold air combined with disturbances in the upper easterly wind zone, from the evening of October 18 to the end of the night of October 19, the area from Ha Tinh to Quang Ngai will have moderate rain, heavy rain, and locally very heavy rain and thunderstorms.

Rainfall in the area from Quang Tri to Da Nang is generally 80 - 150mm, locally over 250mm; in Ha Tinh and Quang Ngai 60 - 120mm, locally over 200mm. Warning of rain intensity greater than 80mm in 3 hours.

From October 18 to 19, there is a possibility of a flood on rivers from Quang Tri to Quang Ngai. During this flood, the peak water level on rivers is likely to reach alert level 1 to alert level 2, with some rivers above alert level 2.

Source: https://baodanang.vn/bao-so-12-kha-nang-suy-yeu-thanh-ap-thap-nhet-doi-truoc-khi-vao-dat-lien-3306677.html