Since the beginning of July, Northern Vietnam has been experiencing an unusual weather pattern, marked by 26 consecutive days of rain, with only two days of minimal precipitation. According to Nguyen Van Huong, head of the National Center for Hydro-Meteorological Forecasting, the region has endured two major rain events from July 8-9 and from the night of July 15 to July 19.

The rainfall has been particularly intense in mountainous and midland areas, where statistics show that from July 4-28, only a few days had little rain. As of July 28, the provinces of Thanh Hoa and Nghe An, along with other northern provinces, have recorded significant rainfall, with some areas experiencing over 80 mm of rain in just one day. For instance, An Bien in Quang Ninh recorded 121.4 mm, while Do Luong in Nghe An saw 148.6 mm.

The heavy rains are attributed to a low-pressure trough extending from the northwest to the southeast across the region. This weather pattern is expected to continue, with forecasts indicating that the northern provinces and Thanh Hoa will experience further rain, including heavy showers, until July 29, with rainfall amounts ranging from 30 to 60 mm, and in some areas, exceeding 150 mm.

Authorities have warned of the risk of flash floods and landslides, particularly in the northern mountainous provinces such as Lang Son, Cao Bang, Thai Nguyen, Tuyen Quang, Lao Cai, Lai Chau, and Dien Bien. The National Civil Defense Steering Committee has advised these provinces to proactively prepare for potential flooding and landslides, especially in low-lying areas and along rivers and streams.

In light of these developments, local governments are urged to implement safety measures for residents in vulnerable areas and to be ready with resources to assist in disaster recovery efforts.