AS typhoon “Bising” intensifies, the state-run Philippine Atmospheric Geophysical Astronomical Services Administration (Pagasa) on Saturday raised Signal No. 1 in parts of the country.
The affected areas are Sorsogon, Albay, the eastern portion of Camarines Sur (Siruma, Goa, Ocampo, Tigaon, Sagnay, Baao, Nabua, Bato, Iriga City, Buhi, Tinambac, Lagonoy, San Jose, Garchitorena, Presentacion and Caramoan), Ticao Island, and Catanduanes in Luzon.
In the Visayas, Signal No. 1 was also raised over Northern Samar, Samar, Eastern Samar, Biliran, Leyte, Southern Leyte and Camotes Islands and in Mindanao, Dinagat Islands, Surigao del Norte (including Siargao and Bucas Grande Islands) and Surigao del Sur.
As of 10 a.m., Pagasa said the center of the eye of Bising was 645 kilometers east of Maasin City, Southern Leyte or 545 km east of Guiuan, Eastern Samar.
Moving north-westward at a speed of 20 kilometers per hour (kph), the typhoon has maximum sustained winds of 185kph near the center and gustiness of up to 230kph.
In its 11 a.m. advisory, Pagasa said the rain bands of the typhoon will bring on Sunday moderate to heavy with at times intense rains over Eastern Visayas, Sorsogon, Masbate, Albay, Camarines Sur, Catanduanes and Camotes Islands.
By Monday, Pagasa said moderate to heavy with at times intense rains will be experienced over Northern Samar and the Bicol Region.
Under these conditions, flooding (including flash floods) and rain-induced landslides may occur, especially in areas identified in hazard maps as highly or very highly susceptible to these hazards, the weather bureau said.
It said Signal No. 1 may be raised over the eastern portion of Masbate and other localities of Camarines Sur in the next few hours in anticipation of the onset of a strong breeze to near gale conditions associated with the approaching typhoon.
Based on the current forecast scenario, Signal No. 2 remains the highest level that will be raised on this typhoon, Pagasa said.
“However, in the event of a further eastward or westward shift in the current track forecast, the highest level of wind signal that will be hoisted for this typhoon may be lower or higher than the current scenario suggests,” it added.
Considering the uncertainty in the track forecast of the typhoon, a westward shift may result in potentially significant impacts over the eastern portions of Luzon and Visayas, Pagasa said.
“The possibility of a landfall scenario is not ruled out,” it said.
Pagasa said Metro Manila and the rest of the country will experience partly cloudy to cloudy skies with isolated rain showers caused by local thunderstorms.