Hazards affecting land areas:
Strong winds: Throughout the passage of the typhoon, destructive typhoon-force winds will be experiencing in areas under Tropical Cyclone Wind Signal (TCWS) #3, damaging gale- to storm-force winds in areas under TCWS #2, and strong breeze to near gale conditions in areas under TCWS #1. The surge of the Northeast Monsoon will bring strong breeze to gale-force winds over the rest of Northern Luzon.
Heavy rainfall:
Until this afternoon, heavy to intense with at times torrential rains over Metro Manila, CALABARZON, and Central Luzon. Moderate to heavy with at times intense rains over Cordillera Administrative Region, mainland Cagayan Valley, Babuyan Islands, Pangasinan, Marinduque, and the northern portion of Mindoro Provinces including Lubang Island. Light to moderate with at times heavy rains over Visayas and rest of Luzon.
Between this afternoon and tonight, moderate to heavy rains over Cordillera Administrative Region, the eastern portions of Cagayan and Isabela, Zambales, Bataan, Aurora, Metro Manila, Cavite, the western portion of Batangas, and the northern portion of Occidental Mindoro including Lubang Island. Light to moderate with at times heavy rains over Western Visayas and the rest of Luzon.
Flooding (including flashfloods), rain-induced landslides, and sediment-laden streamflows (i.e. lahar) may occur during heavy or prolonged rainfall especially in areas that are highly or very highly susceptible to these hazards and/or those that received significant antecedent rainfall. PAGASA Regional Services Divisions may issue local thunderstorm/rainfall advisories and heavy rainfall warnings while the Hydrometeorology Division and River Basin Flood Forecasting and Warning Centers may issue General Flood Advisories and Basin Flood Bulletins as appropriate.
Storm surge: A Storm Surge Warning is in effect. There is a high risk of storm surge with heights of up to 3.0 m over the coastal areas of Aurora, northern Quezon including Polillo Islands, Cavite, Metro Manila, Bulacan, Pampanga, Bataan, and Zambales, and up to 2.0 m over the coastal areas of Isabela, La Union, Pangasinan, Batangas, the rest of Quezon, Marinduque, and the northern portion of Mindoro Provinces including Lubang Island. These storm surges, which may be accompanied by swells and/or breaking waves near the coast, can cause life-threatening and damaging coastal inundation. Moreover, there is also a moderate risk of seiche or storm surge over the coastal areas surrounding Laguna de Bay.
Source: http://bagong.pagasa.dost.gov.ph/tropical-cyclone/severe-weather-bulletin/2