At least seven areas in Luzon were placed under storm signals as Typhoon Odettte (Usagi) continued to gather strength and move toward Luzon before noon Thursday, state weather forecasters said.
PAGASA forecaster Alvin Pura said residents can expect possible heavy rain until at least Saturday, as Odette enhances the southwest monsoon.
"Bukas at Sabado magiging mas maulap o maulan sa Metro Manila (We can expect cloudier skies and heavier rain in Metro Manila on Friday and Saturday)," Pura said in an interview on dzBB radio.
However, PAGASA also indicated Typhoon Odette may be out of the Philippine area of responsibility by Sunday morning.
PAGASA's 11 a.m. advisory said that as of 10 a.m., Odette continued to move towards Northern Luzon and was estimated at 610 km east of Tuguegarao City.
It packed maximum winds of 140 kph near the center and gustiness of up to 170 kph, and is forecast to move west at 13 kph.
By Friday morning, it is expected to be 340 km east of Aparri, Cagayan. By Saturday morning it is expected to be 80 km south of Basco, Batanes.
On Sunday morning, it is expected to be 310 km west of Basco, Batanes or outside the Philippine Area of Responsibility.
Under Storm Signal No. 2 was Cagayan, including Calayan and Babuyan Islands.
Under Storm Signal No. 1 were:
Apayao Ilocos Norte Abra Kalinga Isabela
PAGASA said Odette may bring rainfall of 15 to 20 mm per hour (heavy to intense) within its 600-km diameter.
It warned residents in low-lying and mountainous areas under storm signals against possible flash floods and landslides.
Also, it warned those living in coastal areas under Signal No. 2 to be alert against storm surges.
PAGASA said Odette will continue to enhance the southwest monsoon, which will bring moderate to occasionally heavy rain and thunderstorms over Mimaropa, Western Visayas, Zambales and Bataan.
"Residents in these areas are advised to be alert against flash floods and landslides," it said.
It also said sea travel is risky over the seaboards of Occidental Mindoro and Palawan and over the eastern seaboard of Central and Southern Luzon and of Visayas. — TJD, GMA News