On October 14, according to the National Center for Hydro-Meteorological Forecasting, the tropical convergence zone with an axis at about 10-13 degrees North latitude connects with the low pressure area located at about 11.6 - 12.5 degrees North latitude; 113.6 - 114.6 degrees East longitude.
In the next 24 hours, the low pressure area will move slowly in the West Northwest direction and is likely to strengthen.
Mr. Nguyen Van Huong - Head of Weather Forecasting Department said that the low pressure area in the middle of the East Sea is moving from East to West, towards the Central mainland.
In the coming days, the low pressure area may strengthen to the level of a tropical depression or tropical depression, causing strong gusts of wind in coastal areas, from Quang Tri to Binh Dinh. Around November 16-17, the low pressure area will move inland, causing rain in the Central region.
"The interaction of cold air with the tropical convergence zone above which there is a low pressure area, combined with the East wind zone, will continue to cause heavy rain in the Central region . Heavy rain in this area in the coming time will change the center of the rain", Mr. Huong commented.
Specifically, according to Mr. Huong, on October 14-15, heavy rains were still concentrated from Quang Tri to Quang Nam, with a tendency to expand to Binh Dinh, northern Kon Tum and Gia Lai provinces. During October 16-17, the low pressure area moved inland, adding strong southeast winds causing deep rains in this area.
The meteorological agency said that rain is likely to continue moving north from October 16 to 18.
Previously, Dr. Nguyen Ngoc Huy (Huy Nguyen), an expert on climate change and natural disaster warning, also commented that this low pressure area will cause heavy rain in Quang Ngai, Quang Nam, Da Nang and Thua Thien Hue from now until October 16.
After that, the low pressure area caused heavy rain to Quang Tri, Quang Binh and Ha Tinh - Nghe An from October 17-20.
Therefore, according to Dr. Huy, the immediate risk of flooding and landslides occurs in Quang Nam, Da Nang, TT-Hue, Quang Tri,... then Quang Binh, Ha Tinh and Nghe An.
In addition, on the night of October 14 and October 15, the sea area from Quang Tri to Quang Ngai, the North East Sea (including the Hoang Sa archipelago) and the Central East Sea will have showers and strong thunderstorms; the sea area south of the Gulf of Tonkin, the sea area from Binh Dinh to Ca Mau, Ca Mau to Kien Giang and the Gulf of Thailand will have scattered showers and thunderstorms. During the thunderstorms, there is a possibility of tornadoes and strong gusts of wind of level 7-8.
Cause of heavy rain in Central Vietnam, when will it end?
The Central region continues to face continuous heavy rains from now until at least October 20 and is likely to continue with many complicated developments. Some places will see very heavy rains of up to 800mm, causing widespread flooding.
Low pressure area appears in the East Sea, heavy rain and thunderstorms
Due to the influence of the low pressure area, the sea area from Quang Tri to Quang Ngai, the North East Sea area (including the sea area of Hoang Sa archipelago) and the Central East Sea area will have showers and strong thunderstorms.
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