Vietnam: Tropical Storm Noul makes landfall near Danang on September 18 /update 2

Event

Tropical Storm Noul made landfall near the city of Danang on Friday, September 18, leaving at least one person dead and bringing heavy rainfall throughout central Vietnam. The storm has since been downgraded to a low-pressure system as it moved northwards through Thua Thien Hue province before entering Laos around noon. Hundreds of houses have been damaged and roads blocked by flooding and downed trees.

Further heavy rain is expected in central Vietnam in the immediate term, with officials warning that up to 250mm (10in) of rain could fall. Flooding and landslides are possible in affected areas in the near term, as well as disruptions to business and transport.

Context

Powerful storm systems are common in Vietnam during the typhoon season from June to November, and often particularly affect the North and Central regions. However, a number have also made landfall in the south in recent years due to changes to storm patterns in the South China Sea. The monsoon season, which typically runs from May to September in the northern and southern regions as well as between October and April in the central region, also brings heavy downpours.

Sustained torrential rain can trigger life-threatening floods and landslides in low-lying and hillside communities, including in Hanoi and Ho Chi Minh City. Storm surges are also a threat to coastal communities. Inclement weather can result in disruption to travel, telecommunications, public utilities, commercial activities, and government services.

Advice

Those in areas forecast to be affected by the storm system are advised to monitor local weather reports, confirm flight reservations, adhere to instructions issued by local authorities, anticipate adverse weather and power and transportation disruptions, and avoid driving or walking through flooded streets. Floodwater may also contain wastewater and chemical products.