Typhoon "Bising" (international name "Surigae") continued its slow journey north-northwestward over the eastern coast of Luzon on Monday afternoon, April 19, based on the latest severe weather bulletin issued by the Philippine Atmospheric, Geophysical and Astronomical Services Administration (PAGASA).
In the 5 p.m. bulletin, PAGASA said Bising has maintained its maximum sustained winds of 195 kilometers per hour (kph) near the center and gustiness of up to 240 kph.
The center of the eye of the typhoon was located 500 kilometers east of Infanta, Quezon around 4 p.m.
READ: Tropical Cyclone Bising tracker
Bising continued to bring moderate to heavy with at times intense rains over Albay, Catanduanes, Camarines Sur, Camarines Norte, Sorsogon, Masbate, Northern Samar, Samar, Eastern Samar, Biliran and the northern portion of Leyte Monday.
By Tuesday, April 20, moderate to heavy rains may persist over Albay, Catanduanes, Camarines Sur, Camarines Norte, Sorsogon, Masbate, and Northern Samar, while light to moderate with at times heavy rains may prevail over the northern portion of Aurora and eastern portions of mainland Cagayan and Isabela.
"Under these conditions and considering the antecedent rainfall over the aforementioned areas, flooding, including flash floods, and rain-induced landslides are increasingly likely to occur especially in areas identified in hazard maps as highly or very highly susceptible to these hazards," PAGASA warned.
Tropical cyclone wind signals in some areas have been lifted or downgraded as typhoon Bising moved north-northwestward slowly.
Catanduanes, eastern portion of Camarines Sur, eastern portion of Albay, eastern and central portions of Sorsogon, Northern Samar, northern portion of Samar, and northern portion of Eastern Samar remained under Signal No. 2.
Signal No. 1 was still up in the eastern portion of Cagayan, Isabela, Quirino, northern and central portions of Aurora, eastern portion of Quezon including Polillo Islands, Camarines Norte, rest of Camarines Sur, rest of Albay, rest of Sorsogon, Masbate including Burias and Ticao Islands, rest of Samar, rest of Eastern Samar, Biliran, Leyte, and northern portion of Cebu including Bantayan and Camotes Islands.
In the next 24 hours, PAGASA said the northeasterly wind flow enhanced by the typhoon will also bring strong breeze to near-gale conditions with higher gusts over most parts of Northern Luzon, Aurora, and the rest of Quezon that are not under any tropical cyclone wind signal.
PAGASA said such conditions are more likely to occur in the coastal and mountainous areas.
Bising may also trigger "very rough to very high seas" over the eastern seaboard of Luzon with wave heights up to 5.0-12.0 meters (m), and "rough to very high seas" over the northern and eastern seaboards of Eastern Visayas (2.5-7.0 m).
Rough to very rough seas may also prevail over the northern and western seaboards of Northern Luzon (2.5-5.0 m) and the eastern seaboard of Caraga (2.5-4.5 m), and rough seas over the remaining seaboards of localities where wind signals are in effect and eastern seaboard of Davao Oriental (2.5-4.0 m).
"Sea travel is risky for all types of seacrafts over these waters," PAGASA said.
Projected track and intensity
Typhoon Bising is expected to continue to move generally northward or north-northwestward until Wednesday evening, April 21 or Thursday morning, April 22, PAGASA said.
Afterward, the typhoon will move northeast or east-northeast away from Luzon landmass, it added.
PAGASA said the typhoon would gradually weaken throughout the remainder of the forecast period.
Bising will likely be at 465 km east of Baler, Aurora by Tuesday afternoon; 360 km east of Tuguegarao City, Cagayan by Wednesday afternoon; 370 km east of Calayan, Cagayan by Thursday afternoon; 600 km east of Itbayat, Batanes by Friday afternoon, April 23; and 1,030 km east of Itbayat by Saturday afternoon, April 24.