VietNamNet Bridge - In those days, heavy rains appeared in the southern region and Ho Chi Minh City, causing flooding in some areas. Looking ahead, the weather will continue to deteriorate, due to the impact of the storm No. 7 or Gaemi in the East Sea.

Bad weather to continue

Explaining about the murky weather, heavy rains in recent days in South Vietnam and Ho Chi Minh City, Ms. Le Thi Xuan Lan, from the Southern Region meteorological and hydrological station, said that September and October is the peak time for rains in the South, due to the combination of various weather systems.

“For example, the tropical convergence zone passes the southern part of the central region. This is a cloud-rain band which creates conditions for wind convergence, resulting in dense clouds, causing rains. This cloud-rain band is usually a few hundred kilometers long. As Ho Chi Minh City is at the very southern edge of the range of convergence, this area will be affected," Lan said.

Caption: Heavy rain combined with high tides turned many roads in Ho Chi Minh City into "rivers."

Also, a southwest wind operates very strongly this time and when a tropical depression or storm appears, it become more powerful. With such characteristics, the weather in the south, the south-central region, the Central Highland will get worse, causing widespread rains. In particular, the arrival of typhoon Gaemi on the East Sea will make the weather worse in the next few days, especially when the storm goes to the mainland.

The weather to develop complicatedly



In the next few days, the southeastern provinces of Dong Nai, Binh Phuoc or those in the Mekong Delta like Bac Lieu, Soc Trang and Ca Mau will continue to have heavy rains, strong wind due to the influence of the storm Gaemi in the East Sea.

Tides will also be quite complex. In recent days, many places in Ho Chi Minh City were flooded, up to over one meter submerged. According to Ms. Lan, from September onwards, tide began rising each day. By the operation cycle of the astronomical tide, tidal peak is usually in November, December, even lasts until January of the following year.

In September, there were two waves of high tides, plus heavy rains, causing floods in the Dong Nai River system, forcing hydropower as Tri An and Thac Mo to discharge water downstream. With on-the-spot rains, high tides and water discharged from reservoirs, many places, especially Ho Chi Minh City, was seriously flooded.

According to the Southern Region meteorological and hydrological station, in HCM City, 50 percent of the high tides coincided with the rainy days. In the dry season, rains is not much but flooding is still high due to high tides.

Truong Khoi