What is the location of the flooding?
As of August 25, 2026, Typhoon Narra has triggered widespread flooding across southern China and northern Vietnam.
The storm has brought torrential rain, pushing rivers to critical flood-alert levels. Heavy rainfall is forecast across Guangxi and neighboring provinces through Wednesday (1).
Which cities or areas are affected by the flooding?
Severe flooding has affected areas across northern Vietnam and southern and China:
- Vietnam: Bac Ninh, Lang Son, Thai Nguyen
- China: Guangxi
Additional heavy rainfall is forecast across Fujian, Guangdong, and Hainan (2).
What is the current containment status of the flooding?
Flooding remains difficult to manage as heavy rain continues. More than 54,000 residents have been displaced in Guangxi. Guangxi has deployed 459 firefighters, 114 vehicles, and 80 rescue boats.
In Vietnam, more than 4,000 homes were damaged in Lang Son, while rescue and relief operations continue (3).
Are there any evacuation orders or alerts in place?
China has activated a Level 4 national disaster relief response and Level 3 weather emergency response. Guangxi has raised its flood-control response to Level I, with evacuations underway.
Vietnam has issued Level 3 disaster-risk warnings for the Gulf of Tonkin, with flash-flood and landslide risks across northern provinces. Heavy rainfall alerts remain active across affected regions (4).
How can I protect myself from mold after flooding?
It’s important to take steps to prevent mold after a flood.
- Before entering a flooded area, make sure it is safe and free from electrical hazards or structural damage.
- Use protective gear: wear gloves, goggles, and a KN95/FFP2 mask to minimize exposure to mold spores.
- If there is still standing water, remove it as quickly as possible. Use pumps, wet-dry vacuums, or buckets to extract the water.
- Open windows and doors to facilitate air circulation and use fans, dehumidifiers, and HVAC systems to help dry the space. This step is crucial within the first 24-48 hours after flooding to prevent mold growth.
- Remove and discard any items that have been severely damaged by floodwater and cannot be thoroughly cleaned and dried. This includes carpets, upholstered furniture, mattresses, and any other porous materials.
- Thoroughly clean all hard surfaces with a detergent or cleaner suitable for mold remediation. Use a solution of 1.5 cups of bleach mixed with one gallon of water to disinfect nonporous surfaces. Never mix bleach with ammonia or other cleaning products, as the fumes are toxic.
- Maintain an indoor relative humidity (RH) of 35-50%. High humidity promotes mold growth, so consider using dehumidifiers in damp areas.
- Run a high-performance air purifier for mold, both during and after the mold removal work.
- If the flooding and mold damage are extensive, consider contacting professionals specializing in mold remediation to ensure proper cleanup and restoration.
Remember, mold can pose health risks, so it's important to take these steps promptly and thoroughly. If you experience persistent mold-related health issues or have concerns about extensive mold growth, consult with a medical professional or a mold remediation specialist.
