Vietnam metrological authorities gathered on July 21 to discuss how to prepare for typhoon Chanthu, which is expected to strike northern Vietnam a day later with hundred kilometer-per-hour winds.
Chanthu was estimated to be 450 kilometers from Quang Ninh Province the afternoon of July 22, with winds of 118-133 kph, according to reports from the National Hydro-meteorological Forecasting Center.
By Friday afternoon, the storm should be just 110 kilometers from Quang Ninh.
According to the center, Chanthu will weaken to a tropical depression somewhere between the Chinese border and the mountainous Cao Bang Province on July 24.
The center predicts that Chanthu, which is the second typhoon to come out of the East Sea this year (following Conson last week), will hit Vietnam at high tide.
During a July 21 conference with Deputy Prime Minister Hoang Trung Hai, storm experts described the typhoon as having an "abnormal" path, according to a statement on the government website.
The meteorological centers from the US, Japan and South Korea, have tracked the storm straight through China's Leizhou Peninsula. They anticipate it will directly affect Vietnam's northern provinces.
The center said the typhoon will bring a lot of downpours, unlike Conson which weakened to a tropical depression after making landfall last Saturday.
The National Hydro-meteorological Forecasting Center said it has asked the owners of 43,751 fishing boats to carefully anchor their vessels or sail down along coastline from Quang Ninh to Binh Dinh provinces.
The center has failed to contact 27 fishermen from the central province of Quang Ngai who are believed to be sailing two boats around Hoang Sa (Paracel) Islands.
Deputy PM Hai said that, following Typhoon Conson, authorities need to strictly closely monitor these storms for heavy rainfall.
"There must be strong measures" for fishermen who don't follow safety instructions during the typhoon season, Hai said.
He has asked provinces from Quang Ninh to Quang Ngai to closely track their boats, and update fishermen on typhoon status and direction.
Provincial authorities were also asked to prevent boats and tourists from sailing out in dangerous conditions and to prepare to relocate residents from areas prone to flooding and landslides.
Experts worry that Chanthu will behave like a pair of typhoons that struck the Vietnam-China border in 2007, 2008 causing severe floods.