Appearance of a low pressure area near the East Sea

According to the National Center for Meteorological and Hydrological Forecasts, at 1:00 pm on December 18, the central location of the low pressure area was approximately 6.9-7.9 north latitude; 126.8-127.8 in east longitude.

The low pressure area is expected to move in a northwesterly direction in the next 24 hours, at about 25 km per hour. At 1:00 p.m. on December 19, the center of the low-pressure region was approximately 8.5-9.5 north latitude; 121.0-122.0 degrees east longitude, in the waters of the southern Philippines.

Forecast of the direction of the low pressure area – Source: National Center for Hydrometeorological Forecast

In the next 24 to 48 hours, the low-pressure area is moving in a northwesterly direction, every hour 20-25 km into the East Sea and is likely to strengthen into a tropical depression. At 1:00 p.m. on December 20, the location of the low-pressure tropical center is approximately 10.5 north latitude; 116.5 degrees east longitude, about 250 km from Song Tu West Island (Spratly Islands) to the southeast. The strongest wind in the area near the center of a strong tropical low pressure level 6-7 (40-60 km / h), level 9.

For the next 48 to 72 hours, the tropical depression moves west, then has the ability to change direction to move southwest, every hour to travel 20 to 25 km, and possibly to become a storm.

Due to the influence of a low pressure axial trench at about 4-8 degrees north latitude connecting the low pressure area in the southeastern Philippine Sea combined with cold air, the western waters of the Spratly have strong northeast winds. . level 6, shock level 7-8; rough seas; sea ​​waves 2 to 4 m high. The South China Sea region (including the waters of the Spratly Islands) and the Gulf of Thailand experience rain and thunderstorms. During a storm, there is the possibility of tornadoes and strong winds. In the next 48 to 72 hours, the winds from the Middle and Southeast Sea gradually increase to level 6-7, the area near the center of the storm passes through level 8, level 11 and the sea very strong.