Typhoon ‘Bising’ continues rapid intensification over Philippine Sea; possible landfall scenario not ruled out

Published April 17, 2021, 11:47 AM

by Ellalyn De Vera-Ruiz

Moderate to heavy with at times intense rains could affect Eastern Visayas and parts of Bicol region by Sunday, April 18 amid the continuous rapid intensification of typhoon “Bising” (international name: “Surigae”) while over the Philippine Sea.

(PAGASA)

In the Philippine Atmospheric, Geophysical and Astronomical Services Administration’s (PAGASA) severe weather bulletin issued at 11 a.m., Saturday, April 17, Signal No. 1 was hoisted over Sorsogon, Albay, eastern portion of Camarines Sur, Ticao Island, Catanduanes, Northern Samar, Samar, Eastern Samar, Biliran, Leyte, Southern Leyte, Camotes Islands, Dinagat Islands, Surigao del Norte including Siargao and Bucas Grande Islands, and Surigao del Sur.

It said that Signal No. 1 may be raised over the eastern portion of Masbate and other parts of Camarines Sur in its next bulletin to be issued at 5 p.m. in anticipation of the onset of strong breeze to near-gale conditions associated with the approaching typhoon Bising.

The rainbands of Bising are expected to bring moderate to heavy with at times intense rains over Biliran, Leyte, Northern Samar, Samar, Eastern Samar, Sorsogon, Masbate, Albay, Camarines Sur, Catanduanes, and Camotes Islands by Sunday.

By Monday, April 19, moderate to heavy with at times intense rains over Northern Samar, Albay, Camarines Norte, Camarines Sur, Catanduanes, Sorsogon, and Masbate.

“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,” PAGASA warned.

As of 10 a.m., the center of the eye of typhoon Bising was estimated at 645 kilometers (km) east of Maasin City, Southern Leyte or 545 km east of Guiuan, Eastern Samar.

Bising continued its intensification and is now packing maximum sustained winds of 185 kilometers per hour (kph) near the center and gustiness of up to 230 kph. 

Owing to favorable atmospheric and oceanic conditions, PAGASA said Bising may further intensify and reach its peak intensity of 195 kph to 205 kph, remaining as a typhoon, by Sunday, April 18.

Bising is currently moving northwestward at 20 kph.

It is seen to move generally northwestward over the Philippine Sea until Sunday afternoon or evening. 

Afterward, the typhoon will slow down and move northward or north-northeastward until Tuesday, April 20 before it moves generally north-northwestward over the Philippine Sea east of Northern and Central Luzon.

“Considering the uncertainty in the track forecast of typhoon Bising, a westward shift in the current forecast track may result in potentially significant impacts over the eastern portions of Luzon and Visayas. The possibility of a landfall scenario is not ruled out,” 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 pointed out.

Based on the current forecast scenario, PAGASA said Signal No. 2 remains the highest level of wind signal that will be hoisted due to Bising. 

Bising may also trigger rough to very rough seas over the eastern seaboards of Bicol region (with waves that may reach 2.5 to 4.5 meters), Eastern Visayas (2.5 to 6.5 m), Caraga (2.5 to 5.5 m), and Davao region (2.5 to 3.0 m). 

“Sea travel for all types of sea crafts is risky over these waters,” PAGASA advised.

 
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