Weather forecast for the night of September 21: Heavy rain across the country, flash flood and inundation warnings

According to the National Center for Hydro-Meteorological Forecasting, in the evening and night of September 21, the Northern region and the Central Highlands will have scattered showers and thunderstorms with rainfall of 15-30mm, with some places having heavy to very heavy rain of over 100mm.

Weather forecast for the night of September 21, heavy rain across the country, warning of flash floods and inundation. Illustration photo: VNA

In the afternoon and evening of September 21, the area from Nghe An to Hue; the coastal areas of South Central and Southern Vietnam will have scattered showers and thunderstorms with rainfall of 10-30mm, locally heavy rain over 70mm. Warning of the risk of heavy rain (over 70mm/3 hours).

Thunderstorms may produce tornadoes, lightning, hail, and strong gusts of wind. Localized heavy rain may cause flash floods in small rivers and streams, landslides on steep slopes, and inundation in low-lying areas.

Today (September 21), in the Northeast, the area from Da Nang City to Lam Dong and the Southeast region, there will be scattered showers and thunderstorms, with some places experiencing heavy to very heavy rain. The rainfall from 7:00 a.m. to 3:00 p.m. on September 21 was over 60mm in some places, such as: Phong Coc station (Quang Ninh) 109.2mm, Thuy Nguyen station (Hai Phong) 67.2mm, Dak Ong station (Quang Ngai) 63.6mm, Suoi Ta Nia station (Khanh Hoa) 61.6mm, Vinh Hao station (Gia Lai) 67.8mm, Ea Kiet station (Dak Lak) 70.8mm...

The National Center for Hydro-Meteorological Forecasting warns of the risk of flash floods on small rivers and streams, landslides on steep slopes in many communes/wards: Bang Van, Cho Don, Cuong Loi, Na Phac, Na Ri, Ngan Son, Phuc Loc, Thuong Quan, Tran Phu, Van Lang (Thai Nguyen); Be Van Dan, Doc Lap, Dong Khe, Hanh Phuc, Minh Khai, Phan Thanh, Phuc Hoa, Tam Kim, Thanh Cong, Vinh Quy ( Cao Bang ).

Wards and communes: Binh Gia; Bac Son, Dinh Lap, Doan Ket, Hoa Tham, Khanh Khe, Khuat Xa, Kien Moc, Tan Doan, Tan Tien, Tan Van, Thai Binh, Thien Hoa, Thien Thuat, Van Quan, Yen Phuc (Lang Son); Huong Binh, Huong Khe, Huong Pho, Phuc Trach, Thuong Duc, Vu Quang (Ha Tinh).

Communes/wards of Da Nang city: Hiep Duc, Hung Son, Nam Tra My, Phuoc Hiep, Phuoc Tra, Song Kon, Song Vang, Tay Giang, Tra Doc, Tra Giap, Tra Leng, Tra Linh, Tra My, Tra Tan, Tra Tap, Tra Van; of Lam Dong province: Bac Ruong, Bao Lam 1, Bao Lam 4, Bao Lam 5, Da Huoai 2, Da Huoai 3, Dong Kho, Ham Tan, Ham Thanh, Kien Duc, Nhan Co, Ward 2 Bao Loc, Ward Bac Gia Nghia, Ward Dong Gia Nghia, Ward La Gi, Ward Nam Gia Nghia, Quang Tan, Tanh Linh, Tuy Duc.

Weather in the regions on the night of September 21 and September 22

The Northwest region is cloudy, sunny during the day; scattered showers and thunderstorms at night, with some places having heavy rain. During thunderstorms, there is a possibility of tornadoes, lightning and strong gusts of wind. The lowest temperature is from 23-26 degrees Celsius, in some places below 22 degrees Celsius; the highest is from 31-34 degrees Celsius.

In the Northeast, there will be scattered showers and thunderstorms during the day; scattered showers and thunderstorms at night, with some heavy rain in mountainous areas. During thunderstorms, there is a possibility of tornadoes, lightning, and strong gusts of wind. The lowest temperature is from 24-27 degrees Celsius, in mountainous areas it will be below 23 degrees Celsius; the highest is from 30-33 degrees Celsius, with some places above 33 degrees Celsius.
The area from Thanh Hoa to Hue is sunny during the day; in the late afternoon and at night there are scattered showers and thunderstorms in some places, especially in the South in the late afternoon and at night there are scattered showers and thunderstorms, locally heavy rain. During thunderstorms there is a possibility of tornadoes, lightning, hail and strong gusts of wind. The lowest temperature is from 24-27 degrees Celsius; the highest is from 31-34 degrees Celsius.

In the South Central Coast region, it is cloudy with scattered showers and thunderstorms; in the late afternoon and evening there will be scattered showers and thunderstorms, with some heavy rain in some places. Southwest wind level 2-3. During thunderstorms, there is a possibility of tornadoes, lightning, hail and strong gusts of wind. The lowest temperature is from 24-27 degrees Celsius; the highest is from 31-34 degrees Celsius.

The Central Highlands region is cloudy with scattered showers and thunderstorms; scattered showers and thunderstorms in the afternoon and evening, with some heavy rain in the North. Southwest wind level 2-3. During thunderstorms, there is a possibility of tornadoes, lightning, hail and strong gusts of wind. The lowest temperature is from 20-23 degrees Celsius; the highest is from 27-30 degrees Celsius.

In the South, there will be scattered showers and thunderstorms in some places; in the afternoon and evening, there will be scattered showers and thunderstorms. Southwest wind level 2-3. During thunderstorms, there is a possibility of tornadoes, lightning, hail and strong gusts of wind. The lowest temperature is from 23-26 degrees Celsius; the highest is from 30-33 degrees Celsius, some places above 33 degrees Celsius.

Hanoi is sunny during the day; in the evening and at night there will be scattered showers and thunderstorms. During thunderstorms there is a possibility of tornadoes, lightning, hail and strong gusts of wind. The lowest temperature is from 25-27 degrees Celsius, the highest is from 33-35 degrees Celsius.

Ho Chi Minh City has scattered showers and thunderstorms; scattered showers and thunderstorms in the evening. Southwest wind level 2-3. During thunderstorms, there is a possibility of tornadoes, lightning, hail and strong gusts of wind. Lowest temperature from 24-26 degrees Celsius; highest from 32-34 degrees Celsius.

Source: https://baotintuc.vn/van-de-quan-tam/thoi-weather-dem-219-mua-to-khap-ca-nuoc-canh-bao-lu-quet-va-ngap-ung-20250921182241561.htm