Central Vietnam faces two waves of heavy rain.

The Department of Meteorology and Hydrology warns that heavy rain in Central Vietnam will continue for several days, even after Typhoon No. 12 has dissipated.

At the meeting of the National Civil Defense Steering Committee on the afternoon of October 22, the Department of Meteorology and Hydrology ( Ministry of Agriculture and Environment ) reported on the situation of typhoon No. 12.

According to the Meteorological and Hydrological Department, due to the influence of cold air, the intensity of typhoon No. 12 was not very strong (reaching only level 10 at its peak), and could not intensify like typhoons No. 10 (Bualoi) and No. 11 (Matmo). Upon entering the Hoang Sa Special Economic Zone, the typhoon was blocked by a mass of cold air, causing it to change direction and slow down.

"Although the storm's intensity is not very high, it is still forecast to cause heavy rain on land, because the storm's circulation brings a large amount of moisture from the East Sea inland, combined with strong northeasterly winds over the East Sea and the Gulf of Tonkin and easterly wind disturbances," the Meteorological and Hydrological Department's report stated.

Typhoon No. 12 is heading towards Central Vietnam, with forecasts predicting heavy rain tonight. Source: ZE

Representatives from the meteorological agency also stated that the convergence of wind and moisture (water vapor) from the three aforementioned systems is further strengthened by the wind-blocking effect of the Truong Son mountain range (a topographical factor) in the central region, causing increased and prolonged rainfall, even after the storm subsides.

The Department of Meteorology and Hydrology also warned that from the afternoon of October 22nd, strong winds of force 6-7, gusting to force 8-9, will gradually increase along the coastal areas from Quang Tri to Da Nang City. The strongest winds are expected from tonight until tomorrow morning, October 23rd. People should be wary of the risk of thunderstorms and tornadoes accompanied by strong gusts of wind in the areas affected by the storm's circulation, both before and during landfall.

There will be two periods of heavy rain. The first period, from the night of October 22nd to October 24th, is influenced by the combined effects of the circulation of Typhoon No. 12, cold air, and easterly winds. The area from Quang Tri to Da Nang will experience widespread rainfall of 400-600mm, with some areas receiving over 800mm, and rainfall intensity exceeding 200mm in 3 hours. Ha Tinh and Quang Ngai provinces will receive 100-250mm, with some areas exceeding 400mm. This period requires special attention to the risk of flooding in urban and industrial areas due to heavy rain combined with rising sea levels causing slow drainage.

The second wave, from October 25th to 27th, saw cold air combined with easterly winds continue to cause heavy rain in the central provinces. Specifically, Quang Tri and Hue received 200-300mm of rain, with some areas exceeding 500mm. Ha Tinh, Da Nang City, and Quang Ngai received 100-200mm of rain, with some areas exceeding 300mm. After October 27th, rain is likely to continue in the central region.

According to the National Center for Meteorological and Hydrological Forecasting, as of 13:00 on October 22nd, the storm's center was located at approximately 17.1 degrees North latitude and 110.2 degrees East longitude, about 230km east-northeast of Da Nang City. Maximum wind speed: level 10 (89-102 km/h), gusts up to level 12. In the next 3 hours, the storm will move westward at a speed of approximately 10 km/h.

ANGEL

Source: https://www.sggp.org.vn/mien-trung-doi-mat-2-dot-mua-lon-post819331.html