Tropical storm “Nika” (international name: “Nangka”) left the Philippine area of responsibility (PAR) on Monday afternoon but will still enhance the southwest monsoon or “habagat.”
In its 4 p.m. weather bulletin, the Philippine Atmospheric, Geophysical and Astronomical Services Administration (PAGASA) said the storm-enhanced southwest monsoon will bring light to moderate, to at times heavy rains over Metro Manila, Ilocos Norte, Ilocos Sur, La Union, Pangasinan, Abra, Apayao, Benguet, Ifugao, Kalinga, Mountain Province, Batanes, Cagayan, Isabela, Nueva Vizcaya, Quirino, Aurora, Bulacan, Nueva Ecija, Pampanga, Tarlac, Zambales, Bataan, Cavite, Laguna, Batangas, Rizal, Quezon, Cagayan, Isabela, Nueva Vizcaya, Quirino, Palawan, Oriental Mindoro, and Occidental Mindoro.
The enhanced southwest monsoon will gradually weaken as “Nika” moves further away from the country.
PAGASA likewise continues to monitor a low pressure area (LPA) east of Mindanao, at 450 kilometers (km) east-northeast of Hinatuan, Surigao del Sur or 530 km east of Surigao City, Surigao del Norte on Monday afternoon.
The LPA may also bring scattered light to moderate rains with occasional heavy rains during thunderstorms over Davao Oriental, Dinagat Islands, Surigao del Norte, and Surigao del Sur.
Flash floods and rain-induced landslides are possible during heavy or prolonged rainfall especially in areas that are highly or very highly susceptible to these hazards, PAGASA warned.
The state weather bureau said the LPA may develop into a tropical depression within 48 hours, while moving northwest towards Bicol Region-Eastern Visayas area by Wednesday, Oct. 14.
Should it become a tropical depression, it will be named “Ofel.”
Meanwhile, the rest of the country will have partly cloudy to cloudy skies with isolated rain showers due to localized thunderstorms.