According to the National Center for Hydro-Meteorological Forecasting, currently, the tropical convergence zone has an axis at about 14 - 17 degrees north latitude connecting with the low pressure area in the central East Sea.
At 7:00 a.m. on September 4, the center of the low pressure area was at about 15.5 - 16.5 degrees north latitude, 112.5 - 113.5 degrees east longitude. The sea area from Hue city to Quang Ngai, the Gulf of Thailand, the sea area south of the North East Sea (including Hoang Sa special zone) and the area between the East Sea, the sea area of Ca Mau - An Giang and the Gulf of Thailand will have scattered showers and thunderstorms.
Due to the impact of the above situations, on the day and night of September 4, the sea area from Hue city to Ca Mau, Ca Mau to An Giang, the Gulf of Thailand, the sea area south of the North East Sea (including the special area of Hoang Sa), the central and southern East Sea (including the special area of Truong Sa) will have scattered showers and thunderstorms.
During thunderstorms, there is a possibility of tornadoes, strong gusts of wind of level 6 - 7 and waves over 2m high. All ships operating in the above areas are at risk of being affected by tornadoes and strong gusts of wind.
Regarding the trend of marine weather in September, storms, tropical depressions and southwest monsoons can cause strong winds, large waves at sea and affect the activities of ships.
Previously, in August 2025, there were 2 storms and 2 tropical depressions in the East Sea, of which 2 storms and 1 tropical depression in mid-August directly affected our mainland.