According to Mr. Mai Van Khiem, Director of the National Center for Meteorological and Hydrological Forecasting, tonight and tomorrow (July 1st), a tropical convergence zone will form in the central part of the East Sea, connected to a low-pressure area in the central Philippines .
Forecasts indicate that on July 1st, this low-pressure system will move into the South China Sea and has a probability of strengthening into a tropical depression (approximately 80-85%), and then a probability of intensifying into a typhoon (approximately 60-65%).
According to the National Center for Meteorological and Hydrological Forecasting, due to the influence of the tropical convergence zone, connected to a low-pressure area that is forecast to strengthen into a tropical depression/storm in the East Sea, from approximately July 4th to 7th, the Northern region of Vietnam is likely to experience a period of moderate to heavy rain over a wide area, accompanied by a high risk of tornadoes, lightning, flash floods, landslides, and localized flooding.
Before the storm arrived, today (June 30th), the mountainous and midland areas of Northern Vietnam, Quang Ninh, and Hai Phong experienced moderate to heavy rain and thunderstorms, with some areas experiencing very heavy rain.
Rainfall measured from 7 AM to 3 PM on June 30th exceeded 80mm in some areas, such as Xuan Minh 1 station (Tuyen Quang) with 135.2mm, Phan Thanh ( Lao Cai) with 114.4mm, and Lao Xa Phinh (Dien Bien) with 84.4mm.
Forecasts indicate that from the evening of June 30th to the night of July 1st, the mountainous and midland areas of Northern Vietnam, Quang Ninh, and Hai Phong will continue to experience moderate to heavy rain and thunderstorms with rainfall amounts generally ranging from 50-100mm, and in some places very heavy rain exceeding 250mm.
Additionally, from the evening of June 30th to the morning of July 1st, the Northern Delta region will experience rain, moderate rain, and scattered thunderstorms with rainfall amounts generally ranging from 20-40mm, and some areas receiving heavy rain exceeding 80mm.
During the late afternoon and evening of June 30th, scattered showers and thunderstorms are expected in the Thanh Hoa, Nghe An, Hue to Lam Dong and Southern regions, with rainfall amounts of 10-30mm, and locally heavy rain exceeding 70mm. During thunderstorms, there is a possibility of tornadoes, lightning, hail, and strong gusts of wind.
The meteorological agency notes that, in addition to the regularly issued forecasts and warnings of natural disasters, to monitor real-time forecasts and warnings of thunderstorms, tornadoes, lightning, flash floods, and landslides, people can access the warning systems of the Department of Meteorology and Hydrology at the following addresses: http://hymetnet.gov.vn/ and http://luquetsatlo.nchmf.gov.vn.
At sea, due to the influence of the tropical depression, from July 1st, the eastern sea area of the northern and central parts of the South China Sea will experience strong winds of level 5, sometimes level 6, and the wind intensity will gradually increase as the low-pressure area develops.
From July 2nd, in the sea area from Khanh Hoa to Ca Mau, and the southern part of the East Sea (including the western part of the Truong Sa special zone), the southwest wind will gradually strengthen to level 6, gusting to levels 7-8, with waves 2-3 meters high and rough seas.
The sea areas from Khanh Hoa to Ca Mau, from Ca Mau to An Giang, the Gulf of Thailand, the eastern sea area of the central South China Sea and the southern South China Sea (including the Spratly Islands) will experience heavy rain and thunderstorms. During thunderstorms, be aware of waves that may sometimes reach over 3 meters in height. The area of heavy thunderstorms may expand to the northern sea areas.
Source: https://tienphong.vn/bien-dong-sap-don-con-bao-dau-tien-post1855709.tpo
