page_title: September 2009 Vietnam tropical depression
section_title: Impact
hierarchical_section_title: September 2009 Vietnam tropical depression / Impact
caption_attribution_description: English: JMA TD 20 before landfall.
context_page_description: The September 2009 Vietnam tropical depression was a weak tropical depression that caused deadly flooding throughout central Vietnam in early September. Forming out of an area of low pressure on September 3, the depression hardly intensified as it meandered off the coast of Vietnam. Initially situated in a favorable environment, convective banding features began to develop and shower and thunderstorm activity formed near the center. On September 4, the Joint Typhoon Warning Center issued a Tropical Cyclone Formation Alert; however, a sudden increase in wind shear caused the system to rapidly become disorganized, leading to the cancellation of the alert the next day. The system continued to slowly track off the coast of Vietnam, nearly dissipating on September 5, before becoming better organized. However, the depression remained weak, with the JTWC reporting on September 7 that the depression had dissipated, though the Japan Meteorological Agency continued to issue advisories until the depression dissipated during September 9.
  Although the depression did not make landfall, the outer rainbands of the storm led to heavy rainfall throughout central Vietnam, peaking at 430 mm.
context_section_description: At least six people were killed, three were left missing and nine were injured by the depression throughout Vietnam. Rainfall from the storm exceeded 430 mm (17 in), triggering widespread flash flooding. A maximum of 540 mm (21 in) fell in Huế. Sixty-one tons of fish were swept away during the floods and 8,700 hectares of rice fields were destroyed. The city of Da Nang sustained the worst flooding from the storm, with some areas reporting flood depths of .8 m (2.6 ft). Schools throughout the area were closed as many residents were unable to pass through flooded streets. A sixth grader drowned in the city after the boat he was on overturned in flood waters. In Huế, a two-year-old drowned in flood waters on September 4. A large section of highway 14B, connecting Nam Đông and Huế was washed away. In Quảng Ngãi Province, two fishermen were left missing and five other people were injured by the storm. At least three homes sustained severe damage. Residents throughout Quảng Trị Province were advised to evacuate to safer areas as numerous landslides threatened homes.
  Numerous bridges were washed away by flood waters exceeding 1.5 m (4.9 ft), isolating several communities. In the Sơn Tịnh District, 76 structures were destroyed by flooding and high winds. More than 200 homes were inundated by up to 0.7 m (2.3 ft) of flood waters in the communities of Hoa Tho Dong and Hoa Phat. At least one ship sank and officials lost contact with two others; officials stated that 1,178 boats were in the South China Sea in the storm. In the valleys of Tam Kỳ and Phú Ninh, nearly 1,000 homes were inundated by water. Roughly 20% of the 373,000 students starting school were told to remain home as their schools were closed due to flood waters. By September 7, officials in Quảng Nam Province estimated that property damages from the depression had reached 20 billion (VND; $1.12 million USD) and agricultural losses amounted to 25 billion (VND; $1.4 million USD). Throughout other regions, at least 100 structures were damaged and more than 20,000 hectares of crops were submerged in flood waters. Damages to irrigation systems throughout the county amounted to 3 billion (VND; $168,000 USD).
caption: The tropical depression on September 5.
exif: {}