According to data from the National Center for Hydro-Meteorological Forecasting, last night and this morning (October 21), the area from Thanh Hoa to Quang Ngai had moderate to heavy rain, locally very heavy rain; the Southern Central Highlands and the Southern region had scattered showers and thunderstorms, locally heavy to very heavy rain.
Rainfall from 7pm on October 20 to 7am on October 21 was over 100mm in some places such as: Dong Hieu (Nghe An) 205mm, Son Kim (Ha Tinh) 129.8mm, Quang Phuc (Quang Binh) 148.4mm, Phu An (Thua Thien Hue) 139.2mm, Long Binh (Binh Phuoc) 106.6mm, Can Gio (Ho Chi Minh City) 103mm...
The area from Thanh Hoa to Phu Yen from October 21 to the night of October 22 is forecast to have moderate rain, heavy rain and scattered thunderstorms, locally very heavy rain in some places.
Rainfall in the area from Thanh Hoa to Quang Tri and Phu Yen is from 40 - 90mm, some places over 120mm. Warning of the risk of local heavy rain (rainfall greater than 120mm within 6 hours).
Rainfall in the area from Thua Thien Hue to Binh Dinh is from 50 - 120mm, locally over 180mm. Warning of the risk of local heavy rain (rainfall greater than 150mm within 6 hours).
In the Northern Central Highlands region, in the afternoon and evening of October 21, there is forecast to be scattered showers and thunderstorms, locally heavy rain with rainfall from 10 - 30mm, locally over 70mm.
The Southern Central Highlands and the South have rain, moderate rain and scattered thunderstorms, locally heavy to very heavy rain with rainfall of 20 - 40mm, some places over 80mm.
From October 23, the area from Ha Tinh to Binh Dinh is forecast to have rain, moderate rain, locally heavy rain and thunderstorms with rainfall from 20 - 40mm, locally over 70mm.
During thunderstorms, there is a possibility of tornadoes, lightning and strong gusts of wind. The warning level for natural disaster risks due to heavy rain, tornadoes and lightning is level 1.
Localized heavy rains can cause flooding in low-lying areas; flash floods in small rivers and streams, and landslides on steep slopes.
