According to the storm forecast on September 6 by international organizations and observation on infrared satellite cloud images, it can be seen that the eye of super typhoon No. 3 Yagi is still extremely sharp with convection around the center of the storm taking place extremely strongly. According to the US Joint Typhoon Warning Center (JTWC), the storm's winds have re-strengthened to 240km/h, gusting to 280km/h.
Previously, according to the Typhoon page in the northwest Pacific, observation on satellite cloud images at 8:00 p.m. on September 5 showed that the storm's cloud circulation had re- thickened with an extremely strong convection process around the center of the storm, the eye of the storm was sharper than at noon and afternoon of the same day.
During strong storms, the eye of the storm is characterized by clear clouds and light winds, surrounded by a high and symmetrical eye wall. With weak storms, their eyes are often less sharp and can be obscured by dense central clouds - a thick, high cloud area clearly shown on satellite imagery.
On the morning of September 6, observing the infrared satellite cloud image, it was clear that the distant western edge of the super typhoon had covered almost the entire Gulf of Tonkin, the Central Central Coast and part of the mainland coastal areas of the Northern and North Central provinces of Vietnam.
According to the Vietnam National Center for Hydro-Meteorological Forecasting, at 4:00 a.m. on September 6, the center of the super typhoon was at about 19.2 degrees north latitude; 112.7 degrees east longitude, in the northern sea area of the North East Sea, about 200km east-southeast of Hainan Island (China); about 620km southeast of Quang Ninh. The strongest wind near the center of the super typhoon is level 16 (184-201km/h), gusting above level 17, moving westward, at a speed of about 20km/h.
It is forecasted that by 4:00 a.m. on September 7, the center of the super typhoon will be at about 20.6 degrees north latitude; 108.7 degrees east longitude, 160km east-southeast of Quang Ninh. The strongest wind near the storm center is level 13, gusting to level 17, moving west-northwest, speed about 20km/h, entering the northern Gulf of Tonkin.
The RTHK newspaper of Hong Kong (China) said that this special administrative zone had avoided major damage when super typhoon Yagi slowly passed through the territory, bringing strong winds and heavy rain.
Schools and businesses closed on the morning of September 6. The meteorological Observatory said the first T8 signal of the year - issued at 6:20 p.m. on September 5 - will remain in effect until noon on September 6.
As of 6:00 a.m. on September 6, local time, the Hong Kong government (China) has received more than 40 reports of fallen trees; three people have sought help in emergency departments of public hospitals and 260 people have sought shelter in 30 temporary shelters.
The Observatory warned that heavy rains associated with Yagi will continue to bring heavy showers to the area and urged people to stay vigilant.
The Observatory said the sea was rough with big waves and people should stay away from the coast and not participate in water sports.
