The latest storm information from the Philippine Atmospheric, Geophysical and Astronomical Services Administration (PAGASA) said that on the morning of July 4, the tropical depression in the East Sea is strengthening and is likely to become storm No. 2 Bising as it moves slowly west-southwest over the western sea of Northern Luzon.
At 1:00 p.m. on July 4, the center of Bising was at about 19.8 degrees north latitude, 118.6 degrees east longitude, about 220 km northwest of Laoag City, Ilocos Norte, Philippines. Bising moved at a speed of about 15 km/h, with maximum sustained winds of 55 km/h, gusting up to 70 km/h.
Bising is expected to continue moving slowly and may exit the Philippine Forecast Area (PAR) in the afternoon of July 4. However, according to PAGASA, the system is likely to return by the morning of July 6, depending on interaction with surrounding weather systems.
Typhoon forecast models also show that Bising could strengthen into a tropical storm on July 5, as it moves across the waters south of Taiwan (China), becoming the second typhoon in the Philippines in the 2025 typhoon season.
The outer circulation of Bising combined with the southwest monsoon is causing a clear impact in some areas of Northern and Western Luzon. The affected provinces are recording strong winds, scattered rain and high waves, especially in places with windy terrain.
Heavy rain forecast for many periods from the morning of July 4 to 5, rainfall in Ilocos Norte is forecast to reach 100-200 mm (heavy to very heavy rain). In Batanes, Cagayan and Apayao, rain will range from 50-100 mm.
PAGASA noted that prolonged rain over the past few days has caused water retention, increasing the risk of landslides and flooding in low-lying areas. Mr. Chris Perez, Deputy Director of the PAGASA Meteorological Services Agency, advised people to closely monitor the weather situation in the coming days.
In the next 24 hours, rough to very rough seas will continue along the coastal areas west of Babuyan and Ilocos Norte, with waves up to 3m high. The seas off La Union, Pangasinan and Batanes will have moderate waves.
According to updated typhoon bulletins, Bising is likely to continue moving off the western coast of Northern Luzon and will completely exit PAR by July 7, but the risk of returning is still being closely monitored.
At 2:00 a.m. on July 4, the weather forecast bulletin of the Vietnam National Center for Hydro-Meteorological Forecasting said that the tropical depression in the East Sea had an intensity of level 7, gusting to level 9, moving slowly to the west.
It is forecasted that by 1:00 p.m. on July 5, the center of the low pressure will be at 20.7 degrees north latitude, 117.5 degrees east longitude, in the northeastern sea of the East Sea.
Due to the impact of the tropical depression, the northeastern sea area of the North East Sea will have thunderstorms, strong winds of level 6-7, then increase to level 8-9, gusting to level 11. The sea is very rough, with waves 3-5m high.
