This week, although the southwest monsoon has temporarily weakened, two other weather patterns continue to cause widespread rain in many areas of the Philippines, especially large islands such as Luzon and Mindanao.
According to ABS-CBN weather forecaster Ariel Rojas, a potential low pressure area combined with the tropical convergence zone will cause scattered showers in Luzon from June 17-19.
Meanwhile, in Mindanao, these systems will continue to produce heavy rains in the afternoon and strong thunderstorms in the Visayas region.
The southwest monsoon is no longer active in the Indochina peninsula and is expected to remain weak until at least mid-week. However, a weak southwest monsoon could still bring some scattered showers to Palawan.
Many other areas across the Philippines are also likely to see localized thunderstorms and showers in the afternoon or evening. The capital Manila will maintain hot, sunny weather during the day, followed by thunderstorms in the evening, especially on June 17 and 18.
In another development, on June 16, Typhoon No. 1 Wutip weakened rapidly after interacting with a low pressure trough moving from southeastern China.
radar images show the circulation of Wutip extending southwest-northeast, with most of the convective clouds swept away by the trough. Although there is still a low-level cyclone, Wutip is now seen as a post-tropical system in the process of disolution.
The remnants of Typhoon Wutip are expected to continue moving rapidly northeast, moving into the East China Sea and completely losing their own shape in the next few hours.
On June 16, the Vietnam National Center for Hydro-Meteorological Forecasting continuously issued warnings of flash floods, landslides, and land subsidence in many provinces and cities across the country.
Accordingly, there is a risk of flash floods, landslides, and land subsidence on steep slopes and small streams in:
Dien Bien: Dien Bien, Muong Ang, Muong Cha, Nam Po, Dien Bien Phu City, Tua Chua, Tuan Giao, Muong Lay Town
Son La: Mai Son, Quynh Nhai, Song Ma, Thuan Chau, Son La City, Yen Chau, Muong La
Lao Cai: Bat Xat, Muong Khuong, Si Ma Cai, Sa Pa Town, Bac Ha
Tuyen Quang: Chiem Hoa, Na Hang, Son Duong, Yen Son.
Lai Chau: Muong Te, Nam Nhon, Tan Uyen, Than Uyen
Yen Bai: Mu Cang Chai, Tram Tau
Forecast of rain during the day and night of September 16: The Northern region will have scattered showers and thunderstorms, locally heavy rain with common rainfall of 15-30mm, locally over 60mm.
The mountainous areas of the North will have rain, moderate rain at night, locally heavy rain to very heavy rain, with rainfall of 20-50mm, some places over 100mm.
