I. DEVELOPMENTS

• -On August 21, a low-pressure area was active east of the Philippines. At 13:00, the center was located at approximately 14.5–15.5°N latitude and 126.5–127.5°E longitude, over the eastern waters of the Philippines.

• -On the morning of August 22, the low-pressure area east of Luzon (Philippines) intensified into a tropical depression. At 07:00, the center of the tropical depression was located near 16.7°N latitude and 121.5°E longitude. The maximum sustained winds near the center reached level 6 (39–49 km/h), with gusts up to level 8; the system was moving northwestward at 10–15 km/h.

• -On the morning of August 23, the tropical depression over the northeastern East Sea (South China Sea) strengthened into a tropical storm – Storm No. 5 (international name: Kajiki). At 07:00, the storm center was located at approximately 17.2°N latitude and 116.6°E longitude, about 480 km east-northeast of the Hoang Sa Archipelago. The maximum sustained winds near the center reached level 8 (62–74 km/h), with gusts up to level 10; the storm was moving west-northwestward at about 25 km/h.

• -At 13:00 on August 25, the storm center was located near 18.5°N latitude and 106.3°E longitude, over the coastal waters of Nghe An–Ha Tinh provinces. The maximum sustained winds near the center intensified to level 13 (134–149 km/h), with gusts up to level 16; the storm was moving west-northwestward at 15–20 km/h.

• -By the evening of August 25, Storm No. 5 made landfall over southern Nghe An and northern Ha Tinh. At 19:00, the storm center was located at approximately 18.4°N latitude and 105.8°E longitude, inland over southern Nghe An–northern Ha Tinh. The maximum sustained winds near the center weakened to level 10–11 (89–117 km/h), with gusts up to level 13; the storm was moving west-northwestward at around 10 km/h.

• -In the early morning of August 26, Storm No. 5 moved into central Laos and weakened into a tropical depression. At 04:00, the center was located near 18.9°N latitude and 104.5°E longitude, over central Laos. The maximum sustained winds near the center were at level 7 (50–61 km/h), with gusts up to level 9; the system was moving west-northwestward at 15–20 km/h.

• -By 07:00 on August 26, the tropical depression (remnant of Storm No. 5) had moved further inland over central Laos. The center was located near 18.9°N latitude and 103.9°E longitude. The maximum sustained winds near the center weakened to level 6 (39–49 km/h), with gusts up to level 8; moving west-northwestward at approximately 20 km/h.

II. DIRECTIVE AND RESPONSE MEASURES

• -On August 24, the Government Office issued Official Dispatch No. 7911/VPCP-NN on the participation of the Forward Command Steering Committee for response to Storm No. 5 (2025).

• -On August 23, the Party Central Secretariat issued Official Dispatch No. 70-CV/TW on preparedness and response to Storm No. 5.

• -On August 23, the Prime Minister issued Official Telegram No. 143/CĐ-TTg, requiring ministries, sectors, and local authorities to urgently implement emergency response measures to Storm No. 5.

• -On August 22, Deputy Prime Minister Tran Hong Ha chaired a meeting with ministries and localities and issued Official Telegram No. 141/CĐ-TTg directing proactive preparedness for the tropical depression with potential to strengthen into a storm.

• -On the evening of August 23, Vice Minister of Agriculture and Environment Le Cong Thanh chaired a briefing session on forecasting, early warning, and response measures for Storm No. 5.

• -On the morning of August 22, Vice Minister Nguyen Hoang Hiep chaired a coordination meeting with relevant agencies regarding developments and response actions to the tropical depression/storm.

• -The Ministry of Agriculture and Environment issued the following documents:

  • -Official Dispatch No. 5933/BNNMT-ĐĐ (August 24, 2025) to the People’s Committees of Da Nang and Quang Ngai, requesting urgent calls for fishing vessels operating in the northern East Sea and Hoang Sa Archipelago to take shelter in safe harbors.

  • Established two field missions led by Acting Minister Tran Duc Thang and Vice Minister Nguyen Hoang Hiep to inspect storm preparedness in Thanh Hoa and Nghe An provinces.

  • -Official Dispatch No. 5929/BNNMT-ĐĐ (August 23, 2025) to coastal provinces from Quang Ninh to Gia Lai on ensuring the safety of dike systems and hydraulic works in response to Storm No. 5 and associated floods.

  • -Official Dispatch No. 5873/BNNMT-ĐĐ (August 21, 2025) to coastal provinces from Quang Ninh to An Giang on preparedness for a low-pressure system with potential to develop into a tropical depression and storm.

  • -Official Dispatch No. 5848/BNNMT-ĐĐ (August 21, 2025) to northern mountainous provinces on preparedness for heavy rainfall, flooding, flash floods, and landslides.

  • -Official Dispatch No. 6019/BNNMT-ĐĐ (August 25, 2025) to midland and northern delta provinces, Son La, and Lao Cai on proactive response to heavy rainfall, flooding, flash floods, and landslides.

  • -Official Dispatch No. 6040/BNNMT-ĐĐ (August 26, 2025) on ensuring dike safety and responding to post-storm rainfall and flooding.

• -On August 22, the General Staff of the Ministry of National Defense issued Official Telegram No. 4867/CĐ-TM on preparedness for heavy rainfall impacts in the northern and north-central regions caused by the tropical depression/storm.

• -The Ministry of Foreign Affairs sent diplomatic notes to the Embassies of China and the Philippines in Vietnam, requesting support in assisting Vietnamese fishermen and vessels seeking storm shelter.

• -The Ministry of National Defense issued Official Telegram No. 5284/CĐ-BQP (August 24, 2025) on urgent emergency response to Storm No. 5.

• -The Ministry of Public Security issued Official Telegram No. 14/CĐ-BCĐ (August 24, 2025) on emergency response to Storm No. 5.

• -The Ministries of Construction and Industry & Trade also issued directives to local authorities on proactive preparedness measures.

• -Vietnam Television (VTV), the Voice of Vietnam (VOV), Vietnam News Agency (VNA), and other mass media outlets continuously broadcasted tropical depression/storm forecasts to support command and warning efforts. VTV1 aired a 3D instructional video on storm preparedness during the 18:00–18:30 news bulletin.

• -Departments of Dyke Management and Disaster Prevention, Fisheries and Aquatic Resources Surveillance, Crop Production and Plant Protection, and Hydraulic Works Management issued directives on response measures to Storm No. 5.

• -A 24/7 duty system was maintained to closely monitor the storm’s developments. On August 23, in collaboration with Zalo Vietnam, 18 million SMS messages were sent to coastal residents from Quang Ninh to Gia Lai with guidance on storm and flood preparedness.