According to the National Center for Hydro-Meteorological Forecasting, at 4:00 p.m. on July 13, satellite images, lightning positioning data and weather radar images detected convective clouds developing in An Khanh commune, moving and expanding to the inner city of Hanoi.
In the next 30 minutes to 3 hours, the thunderstorm area will expand to other areas of Hanoi city. The forecast of showers and thunderstorms in Hanoi will continue for the next 1 - 3 hours.
The meteorological agency warns that thunderstorms may cause tornadoes, lightning and strong gusts of wind.
The National Center for Hydro-Meteorological Forecasting recommends that people limit going out and proactively prevent dangerous weather phenomena, especially in areas with many trees or advertising signs.
The meteorological agency also said that it is forecasted that in the evening and night of July 13, the Northern region will have scattered showers and thunderstorms, locally heavy rain with rainfall of 10 - 30mm, locally over 50mm.
The area from Thanh Hoa to Ha Tinh, the Central and Southern Plateau in the evening and evening of July 13 is forecast to have scattered showers and thunderstorms, locally heavy rain with rainfall of 10 - 30mm, locally over 60mm.
During thunderstorms, there is a possibility of tornadoes, lightning, hail and strong gusts of wind. The warning level of natural disaster risk due to tornadoes, lightning, and hail is level 1.
Localized heavy rains are likely to cause flash floods on small rivers and streams, landslides on steep slopes and flooding in low-lying areas.
