TROPICAL Depression Isang has maintained its strength and speed after making landfall in the provinces of Isabela and Cagayan on Wednesday morning, the state weather forecaster said.
Weather Forecaster Alvin Pura said that Isang made landfall in Estagno Point in Isabela at about 4 a.m. and made another landfall in Lallo town, Cagayan at about 5:10 a.m.
Pura said as of 7 a.m. Isang was spotted some 50 km east northeast of Aparri town, Cagayan province packed with maximum winds at 55 kph and continues to move northwest at 15 kph.
He added that Isang is still expected to make landfall in areas of Batanes as the agency continues its monitoring.
Pura said that public storm warning signal number one still affect 14 provinces in northern Luzon: Aurora, Quirino, Isabela, Ifugao, Mt. Province, Abra, Kalinga, Apayao, Ilocos Norte, Ilocos Sur, Cagayan, Calayan, Babuyan Group of Islands and Batanes Group of Islands.
Philippine Atmospheric Geophysical and Astronomical Services Administration (Pagasa) advised residents living in low lying and mountainous areas under public storm warning signal 1 to be alert against possible flashfloods and landslides.
Estimated rainfall amount within the 300-km diameter of the tropical depression is from five to 15 millimeters per hour, which is classified as “moderate to heavy.”
He said Isang will enhance the southwest monsoon which will bring light to moderate rains and thunderstorms over Metro Manila and the rest of Luzon and Western Visayas.
Pura added Isang continues to move at northwest at 15 kph with this speed is expected to leave the country by Thursday afternoon towards southern China.
Isang was forecast to move at 160 km West of Basco, Batanes by Thursday morning.
It is expected to be at 380 km North Northwest of Basco, Batanes by Friday morning
In its advisory, Pagasa said that Ilocos Region, Cagayan Valley, Cordillera Administrative Region and the province of Aurora will have rains and gusty winds with moderate to rough seas.
The rest of Luzon, Western and Central Visayas, Northern Mindanao and Zamboanga Peninsula will have cloudy skies with light to moderate rain showers and thunderstorms.
The rest of the country will be partly cloudy to cloudy with isolated rain showers or thunderstorms.
Pagasa also said that moderate to strong winds blowing from the southwest will prevail over the rest of Luzon and the coastal waters along these areas will be moderate to rough.
Elsewhere, winds will be light to moderate coming from the west to southwest with slight to moderate seas. PNA