According to the National Center for Hydro-Meteorological Forecasting, on September 29, the Northern region and from Thanh Hoa to Ha Tinh will have moderate rain, heavy rain, locally very heavy rain; Thanh Hoa, Nghe An provinces, the southern provinces of Lao Cai, Phu Tho, Son La will have heavy to very heavy rain. Rainfall from 7am to 3pm on September 29 was measured by monitoring stations over 190 mm such as: Thiet Ke station (Thanh Hoa) 268.4 mm, Ta Si Lang station (Lao Cai) 251.4 mm, Xuan Son station (Phu Tho) 224.4 mm, Muong So 2 station (Son La) 197.0 mm.
Son La, Phu Tho and Lao Cai provinces are forecast to have heavy to very heavy rain with common rainfall of 70 - 150 mm, locally over 250 mm from the evening of September 29 to September 30.
Other places in the North and Thanh Hoa from the evening of September 29 to September 30 are forecast to have moderate rain, heavy rain with common rainfall of 50 - 100 mm, locally over 200 mm. Warning of the risk of heavy rain over 150 mm in 3 hours.
Nghe An, the Central and Southern Plateau areas in the evening and night of September 29, are forecast to have scattered showers and thunderstorms with rainfall of 10 - 30 mm, locally heavy rain over 80 mm. Warning of the risk of heavy rain over 70 mm in 3 hours. During thunderstorms, there is a possibility of tornadoes, lightning, hail and strong gusts of wind.
The meteorological agency forecasts that from the night of September 30, the rain in the above areas will gradually decrease.
The warning level of natural disaster risk due to heavy rain, tornadoes, lightning, and hail is level 1. Heavy rain is likely to cause flooding in low-lying areas, urban areas, industrial parks; flash floods on small rivers and streams, landslides on steep slopes.
Real-time warning information for areas at risk of flash floods and landslides is provided online on the website of the Department of Hydrometeorology at: https://luquetsatlo.nchmf.gov.vn and in a separate bulletin warning of flash floods and landslides.
