The National Center for Hydro-Meteorological Forecasting has made a meteorological assessment for the period of this weekend and next week (from September 20 to September 26).
Hanoi area
From September 20 to 21 and September 24, Hanoi will have sunny days, showers and thunderstorms at night in some places.
From September 22 to 23, Hanoi will have scattered showers and thunderstorms, with some places having heavy rain.
From September 25 to 26, Hanoi is likely to experience widespread heavy rain.
Northern region
From September 20 to 21 and September 24, the North will have sunny days and thunderstorms at night in some places.
From September 22 to 23, the North will have rain, moderate rain, locally heavy to very heavy rain.
From September 25 to 26, the North is likely to experience widespread heavy rain.
During thunderstorms, there is a possibility of tornadoes, lightning and strong gusts of wind.
Water levels on small rivers and streams and main rivers in the Red - Thai Binh system are likely to experience flooding in the 1-2 days of the weekend.
Central region
The area from Thanh Hoa to Hue city from September 20 to 21 and September 24 will have scattered showers and thunderstorms in some places, especially in the south of this area in the late afternoon and evening there will be scattered showers and thunderstorms.
From September 22 to 23, Thanh Hoa to Hue city will have scattered showers and thunderstorms in the evening. From around September 25 to 26, there is a possibility of widespread heavy rain.
The Central Coast region from September 20 to 23, in the late afternoon and evening, there will be scattered showers and thunderstorms, with some places having heavy rain.
From September 24 to 26, sunny days, showers and thunderstorms in some places in the late afternoon and night. During thunderstorms, there is a possibility of tornadoes, lightning and strong gusts of wind.
The water level on the main rivers in the area fluctuates slightly.
Central and Southern Plateau
The Central and Southern highlands will have scattered showers and thunderstorms; from September 22 to 25, there will be scattered showers and thunderstorms, with some places having heavy to very heavy rain. The rain will be concentrated in the afternoon and evening.
During thunderstorms, there is a possibility of tornadoes, lightning and strong gusts of wind.
Water levels on small rivers, streams and main rivers in the Central Highlands are likely to fluctuate and have minor floods.
The water level on rivers in the Southeast region fluctuates and is regulated by upstream reservoirs. The upstream water level of the Mekong River fluctuates with the tide with a gradual upward trend.
Assessment of the hydrological situation
Regarding the sea wave situation, from September 20 to 21, the wave height will fluctuate by 2m in the sea areas.
From September 22 to 27, due to the impact of Typhoon Ragasa, wave heights in coastal areas tend to increase. In the North East Sea area (including Hoang Sa special zone), wave heights range from 9 - 11m.
In the central and southern East Sea area (including Truong Sa special zone), the Gulf of Tonkin area, the waves will be 3 - 6m high; the area from Quang Tri - Ca Mau will have waves of 2 - 4m high.
Typhoon Ragasa is forecast to move northwest, then change direction to west-northwest, the speed of movement will gradually increase and the intensity will continue to increase. Around September 23, the storm is likely to enter the eastern sea of the North East Sea with a strength of level 14 - 16, gusting above level 17.
