According to the National Center for Hydro-Meteorological Forecasting, current weather conditions are quite favorable for storm development, with sea surface temperatures of about 29°C and little wind shear. Therefore, storm Matmo is likely to intensify rapidly, moving at a speed of 25-30km/h. The storm's peak intensity is forecast to reach level 12-13, gusting to level 14-15 when east of Leizhou Peninsula (China).
The two main storm movement scenarios identified by the meteorological agency are:
Scenario 1 (probability 70-75%): The subtropical high pressure rapidly weakens, causing the storm to shift northward, moving more over land. When entering the Quang Ninh area, the storm weakens by 2-4 levels. The Gulf of Tonkin has strong winds of level 9-10. Quang Ninh - Hai Phong has strong winds of level 8-9. The North will experience widespread heavy rain, with the focus of heavy rain in the midlands and mountainous areas.
Scenario 2 (25-30% probability, more extreme): The subtropical high pressure weakens less, the storm moves mainly over the sea so it weakens less. When entering Quang Ninh, the strong wind is still level 9-10, gusting to level 12-14. The area of influence expands from Quang Ninh to Ninh Binh . Heavier rains and strong winds can penetrate deep into the mainland.
From the night of October 5 to October 7, the Northern provinces and Thanh Hoa will have widespread rain of 100-200mm, locally over 300mm. The midland and mountainous areas of the North will have heavier rain, 150-250mm, in some places over 400mm.
From October 6 to 9, in the river basins in the North, Thanh Hoa and Nghe An, a flood is forecasted to occur, with the flood peak generally at alert level 2 - alert level 3, and in some places above alert level 3.
Authorities recommend that people closely monitor the developments of storm No. 11 to proactively respond, especially in coastal areas and midland and mountainous areas at high risk of flash floods and landslides.
Source: https://quangngaitv.vn/hai-kich-ban-bao-matmo-do-bo-vao-nuoc-ta-6508170.html
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