Source: Socialist Republic of Vietnam
As of 4pm on Monday, the storm was located at 17.9 degrees north latitude and 115.3 degrees east longitude, 350km to the east-northeast of the Hoang Sa (Paracel) Islands, according to the National Centre for Hydro-Meteorological Forecasting (NCHMF).
Maximum wind speeds near the eye of the storm were estimated to be at scale 8 (60-75kph) with gusts at scale 10.
The system is forecast to move west-northwest at a speed of about 20km over the next 24 hours and is likely to gain strength. By 4pm on October 13, Nangka will be at 18.8 degrees north latitude and 110.4 degrees east longitude, right on the eastern part of China’s Hainan Island. The strongest winds near the storm’s centre will be at scale 10 (75-100kph), with gusts at scale 12.
The danger zone in the East Sea will see winds of scale 6 or above, with gusts at scale 8 or above. All boats operating in this area are at risk of being seriously affected by strong gusts.
In the following 24 hours, the storm will keep moving west-northwest at a speed of 15-20kpm. By 4pm on October 14, it will be located at 19.7 degrees north latitude and 106.2 degrees east longitude on the waters of northern and north central provinces. Maximum wind speeds near the storm’s eye will be at scale 9-10 (75-100kph), with gusts at scale 12.
For the following 24 hours, the storm will keep moving west-northwestwards at a speed of 15kph.