Will Storm Matmo cause flooding in Hanoi?

It is forecasted that due to the influence of storm Matmo (storm number 11), from October 6 to 7, in Hanoi there will be moderate rain, heavy rain, and in some places very heavy rain, over 150mm in some places.

Forecast of location and direction of storm Matmo at 10am October 4 - Photo: NCHMF

On the morning of October 4, the Northern Hydrometeorological Station forecasted the possible impact of storm Matmo on Hanoi city.

Beware of heavy rain causing flooding in urban areas

According to the forecast, from early morning on October 6, the Hanoi area will have winds gradually increasing to level 4-5. From early morning on October 6 to evening on October 7, Hanoi will have moderate rain, heavy rain, and in some places very heavy rain and thunderstorms.

Total rainfall in the city center, western and northern areas of the city is commonly 80-150mm, in some places over 150mm.

Southern area of ​​the city commonly 50-100mm, some places over 100mm.

The National Center for Hydro-Meteorological Forecasting said that the Hanoi area is unlikely to be affected by storms.

It is forecasted that from early morning of October 6 to the end of October 7, there will be moderate to heavy rain, with common rainfall of 70-120mm, locally over 150mm.

The Northern Hydrometeorological Station warned that heavy rain in a short period of time will overload the drainage system, causing flooding in residential areas, urban areas and low-lying areas, traffic jams due to flooded roads and reduced visibility when driving, causing slippery roads and traffic accidents.

Thunderstorms may be accompanied by tornadoes, lightning and strong gusts of wind that can break trees, damage houses, traffic works and infrastructure.

New developments of storm Matmo

Satellite image of storm Matmo at 11am today - Photo: NCHFM

At 11am today, the center of storm Matmo was about 390km east-northeast of Hoang Sa special zone. The strongest wind was level 11 (103-117km/h), gusting to level 14.

It is forecasted that in the next 24 hours, the storm will move towards Leizhou peninsula (China), and its intensity may increase by two levels, to level 13 (134-149km/h), gusting to level 16.

Around tomorrow evening, the storm will pass the Leizhou peninsula into the Gulf of Tonkin, its intensity will likely weaken, then the storm will likely enter the northeastern region in the early morning of October 6.

Due to the influence of the storm, in the North East Sea area, there are strong winds of level 8-10, near the eye of the storm level 11-13, gusts of level 16, waves 4-6m high, near the eye of the storm 6-8m.

From the afternoon of October 5, the sea area east of the northern Gulf of Tonkin (including Bach Long Vi special zone) will have winds gradually increasing to level 6-7, then increasing to level 8-9.

From the evening of October 5, the Northern Gulf of Tonkin area (including Bach Long Vi, Van Don, Co To, Cat Hai and Hon Dau islands) will experience winds gradually increasing to level 8-9, with waves 2-4m high. The area near the storm's center will experience winds of level 10-11, gusting to level 14, with waves 3-5m high.

Coastal areas and islands in Quang Ninh - Hai Phong provinces will have storm surges of 0.4-0.6m. Beware of flooding in low-lying coastal areas and river mouths due to surges and big waves from the afternoon and evening of October 5.

On land from the night of October 5, on land in coastal areas from Quang Ninh to Hung Yen, winds will gradually increase to level 6-7, near the storm center level 8-9 (62-88km/h) - this wind level can break tree branches, blow off roofs and cause damage to houses.

Inland areas in the Northeast have strong winds of level 4-5, in some places level 6, gusting to level 7-8.

From the night of October 5 to the end of the night of October 7, in the mountainous and midland areas of the North, there will be heavy rain, with average rainfall of 150-250mm, and in some places very heavy rain of over 400mm.

Warning of risk of heavy rain over 150mm in 3 hours. The Northern Delta and Thanh Hoa regions will have moderate to heavy rain with common rainfall of 70-150mm, locally very heavy rain over 200mm.

Due to the influence of the wide storm circulation, it is necessary to guard against the risk of thunderstorms, tornadoes and strong gusts of wind both before and during the storm's landfall.

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Source: https://tuoitre.vn/bao-matmo-lieu-co-gay-mua-lut-o-ha-noi-20251004115744617.htm