(UPDATE) Severe Tropical Storm Siony maintained its strength as it continued to move closer to Batanes and Babuyan Islands Friday morning, according to weather bureau PAGASA.
Siony was last spotted 70 kilometers east of Itbayat, Batanes at 4 a.m. with maximum sustained winds of 95 kilometers per hour (kph) near the center and gustiness of up to 115 kph, said PAGASA in its 5 a.m. bulletin.
It is moving west at 20 kph.
Siony is expected to make landfall or closely approach the vicinity of Itbayat, Batanes within the next 2 to 3 hours. It is forecast to exit the Philippine Area of Responsibility (PAR) by Friday evening.
Tropical cyclone wind signal (TCWS) no. 2 was raised over the following areas, where 61 to 21 kph winds may cause ight to moderate damge to high risk structures, damage nipa and cogon houses and down wooden electric posts:
TCWS no. 1 was hoisted in the following areas, where 30 to 60 kph winds may rip roofs off nipa and cogon huts, damage rice crops and down banana plants:
- Northern portion of mainland Cagayan (Santa Ana, Gonzaga, Lal-Lo, Allacapan, Santa Teresita, Buguey, Camalaniugan, Aparri, Ballesteros, Abulug, Pamplona, Sanchez-Mira, Claveria, Santa Praxedes)
- Northern portion of Apayao (Santa Marcela, Luna, Calanasan)
- Northern portion of Ilocos Norte (Adams, Pagudpud, Bangui, Dumalneg, Burgos, Vintar, Pasuquin, Bacarra)
Siony's passage will bring moderate to heavy rains over areas under TCWS no. 2 and light to moderate with at time heavy rains in areas under TCWS no. 1 today, PAGASA said.
Flooding, including flashfloods, and rain-induced landslides may also occur during heavy or prolonged rainfall especially in areas highly susceptible to these hazards.
Meanwhile, PAGASA said a low pressure area east of Visayas may enter the Philippine Area of Responsibility by Friday.
It is heading towards Eastern Visayas and may reach the area by Saturday. It may also develop into tropical depression "Tonyo" within the next 48 to 72 hours.