At 6 a.m. Sunday, the tropical depression was located in waters off the central Vietnamese localities from Da Nang City to Binh Dinh Province with a maximum wind speed under 60 kph, according to the National Center for Hydro-Meteorological Forecasting.

Moving west at 5-10 kph, the tropical depression was set to land in the localities later in the day before devolving into a low-pressure area with a maximum wind speed under 40 kph in southern areas of Laos.

The Japan Meteorological Agency also said the storm had weakened into a tropical depression, while the Hong Kong Observatory estimated it will make its landing in the central province of Quang Ngai.

The seas and coastal areas from the central province of Thua Thien Hue Province to Quang Ngai (including the islands of Ly Son, Con Co and Cu Lao Cham) will see strong winds of under 60 kph as well as strong waves that could go as high as 4 meters, the Vietnam center said.

Provinces from Quang Tri to Quang Ngai as well as the Central Highlands province of Kon Tum would experience heavy rains of up to 150 mm and over 200 mm in some places. Binh Dinh and Gia Lai provinces could experience rains of up to 100 mm and over 150 mm in some places.

From Sunday to Tuesday, provinces from Quang Binh to Thanh Hoa would also have rains of up to 150 mm and over 200 mm in some places.

After Conson, the fifth storm to appear in South China Sea this year, which Vietnam calls East Sea, there could be another six to eight storms and tropical depressions this year, with two to four directly affecting Vietnam, meteorologists have said.