Thick fog covers Gulf of Tonkin

The Gulf of Tonkin covered with thick fog in the early morning of March 15 because of the influence of the southwestern edges and weakening of the continental high- pressure area. 
(Illustrative photo:SGGP)
(Illustrative photo:SGGP)

The weather news was reported by the National Hydrology Meteorology Forecast Center. 

Fog reduces visibility to less than 1 kilometers, causing visibility far over 10 kilometers. 

The weather condition is warned to continue hitting the Gulf of Tonkin in the next two or three days. 

The cold front and thick fog caused difficult for vessels in the Gulf of Tonkin.