MANILA - Weather disturbance Ambo weakened into a tropical depression as it moved north-northeastward over the Luzon strait west of Cagayan, the state weather bureau said Saturday.
In its 8 p.m. bulletin, the PAGASA said Ambo was spotted at 7 p.m. approximately 90 kilometers west of Calayan, Cagayan, packing maximum sustained winds of 55 kilometers per hour near the center and 70 kph gusts.
Ambo was last seen moving north-northeast at 20 kph, the weather agency said, and likely to exit the Philippine area of responsibility on Monday afternoon.
On Saturday night, light to moderate with at times heavy rains will prevail over Ilocos Region, Cordillera Administrative Region, Cagayan Valley, and the northern portion of Aurora.
Between Saturday night and Sunday night, moderate with at times heavy rains will be experienced in Batanes and Babuyan Islands.
Flooding and rain-induced landslides could occur in highly to very highly susceptible areas during heavy or prolonged rainfall, said PAGASA.
Tropical cyclone wind Signal No. 1 is still raised over Ilocos Norte, Batanes, Babuyan Islands, the northwestern portion of Cagayan (Santa Praxedes, Claveria, Sanchez Mira, Pamplona, Abulug, Ballesteros) and the northern portion of Apayao (Calanasan, Luna), according to the weather bureau.
Winds of up to 30 to 60 kph may be expected in at least 36 hours, or intermittent rains may be expected within 36 hours in these areas.
Sea travel is risky for all types of seacrafts over the seaboards of areas under TCWS, PAGASA said.
Residents in affected areas are advised to take appropriate measures, coordinate with local disaster risk reduction and management offices, and continue monitoring for updates.