Typhoon Wipha is approaching northern Vietnam as it hit China’s Leizhou Peninsula and was about 275km to the east of the Quang Ninh – Hai Phong coast at 4am on July 21.

Prime Minister Pham Minh Chinh on Sunday signed and issued an official dispatch on emergency response to typhoon Wipha.

Storm Wipha threatens the region with intense rainfall exceeding 600mm and raises the risk of flash floods and landslides.

Vietnam Airlines Group has adjusted flights on July 21 and warned of potential delays through July 22 due to the approaching Typhoon Wipha, prioritising passenger and crew safety.

Satellite imagery can help determine the strength, size and cohesion of a storm. The stronger a storm becomes, the more likely an eye will form in the center. When the eye looks symmetrical, that often means the storm is not encountering anything to weaken it.

From July 20 to 29, Typhoon No. 3 (Wipha) is forecast to bring heavy to extremely heavy rainfall to northern Vietnam and north-central provinces, especially from Thanh Hoa to Ha Tinh. The central region will see a gradual decline in heat, while the southern region is expected to experience afternoon and evening rain.