I. Situation Overview
Since 08 August 2016, Southwest Monsoon is affecting Luzon and Western Visayas.
On 09-10 August 2016, the Low Pressure Area (LPA) located at Aparri, Cagayan enhanced the Southwest Monsoon which brought moderate to heavy rains over Metro Manila, !locos Region, CALABARZON, MIMAROPA, and the Provinces of Benguet, Zambales, and Bataan.
The LPA at Itbayat, Batanes exited the Philippine Area of Responsibility (PAR) on 11 August 2016 but continued to enhance the Southwest Monsoon.
On 12-14 August 2016, the Southwest Monsoon continued to bring light to heavy rains with isolated thunderstorms over Luzon and Western Visayas. The presence of a Low Pressure Area located at East of Baler, Aurora enhanced the Southwest Monsoon on 15-16 August 2016 which brought monsoon rains over Luzon.
On 17 August 2016. the Southwest Monsoon affected the western section of Northern and Central Luzon which brought light to moderate rains and thunderstorms is expected over the regions of Cordillera, Cagayan Valley and the provinces of Zambales and Bataan as the LPA exited the PAR.
At 11:00 AM, 18 August 2016, the effect of the Southwest Monsoon has weakened. However, the !locos Region, Cordillera Administrative Region (CAR), and the Provinces of Zambales and Bataan will continue to experience cloudy skies and light to moderate rains and isolated thunderstorms.
At 5:00 PM, 20 August 2016, Monsoon trough is affecting Luzon and Visayas. Cloudy skies with light to moderate rains and thunderstorms is expected over Luzon, Visayas and the Regions of Northern Mindanao and CARAGA. Partly cloudy to cloudy skies with isolated rainshowers or thunderstorms will prevail over the rest of Mindanao. Moderate to strong winds blowing from the northwest to west will prevail over northern and central Luzon and coming from the southwest to west over Visayas and the rest of Luzon. The Coastal waters along these areas will be moderate to rough. Elsewhere, winds will be light to moderate coming from the southwest with slight to moderate seas.