The Philippine Atmospheric, Geophysical and Astronomical Services Administration (PAGASA) said that at 3:00 a.m. on December 20, the location of low pressure 12a (weakened from tropical depression Querubin) was at about 9.2 degrees north latitude, 124.8 degrees east longitude, over the waters of Mahinog, Camiguin.
According to the storm/low pressure information of the Japan Meteorological Agency (JMA), the low pressure intensity reaches level 6, gusting to level 8. In the next 2-3 days, the low pressure will move slowly to the west and west southwest, weaken after crossing the mainland and islands of the Southern Philippines and is likely to strengthen again when entering the area east of Truong Sa archipelago.
According to the Storms page in the Northwest Pacific, the development of the low pressure is unpredictable due to the impact of northeast winds. However, with a large circulation, it will cause bad weather for most of the southern sea areas with strong winds and rough seas. Ships should limit activities or leave the danger zone.
From December 23 to 26, due to the impact of the low pressure circulation in the west and northwest combined with the northeast wind of the cold air flowing down, a widespread rainstorm appeared along the provinces from Hue to Ninh Thuan, the Central Highlands and the South, many places had heavy rain with common amounts ranging from 150-250 mm, locally over 350 mm.
According to the weather forecast of the Vietnam National Center for Hydro-Meteorological Forecasting, on December 20, at Huyen Tran station, there were strong winds of level 7, gusting to level 9; Phu Quy island had strong winds of level 7-8; Truong Sa island station had strong winds of level 6, gusting to level 8.
Forecast for the day and night of December 20, in the North East Sea (including the Hoang Sa archipelago), from Binh Dinh to Ca Mau, between the East Sea and the western sea of the South East Sea (including the western Truong Sa archipelago), strong winds of level 6, sometimes level 7, gusting to level 8-9. Rough seas. Wave height from 3-6m.
From Da Nang to Quang Ngai, wind level 6, gusting to level 7-8. Rough sea. Waves from 2-4.5m high.
During the day and night of December 20, the South China Sea (including the Truong Sa archipelago) will have scattered showers and thunderstorms. During thunderstorms, there is a possibility of tornadoes and strong gusts of wind of level 7-8.
On the same day, December 20, the US Joint Typhoon Warning Center (JTWC) was also monitoring low pressure 97W south of Guam.
The low pressure system remains weak and disorganized, but is expected to strengthen over the next few days as it moves northwest into the Philippine Sea.
Another low pressure system off the northwest coast of Borneo has increased in extent and organized over the past 24 hours. However, the circulation of the low is not well defined and the system is producing only light winds. Environmental conditions may support the formation of a tropical depression on December 23.
