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Metro Manila (CNN Philippines, October 30) Typhoon Rolly, considered stronger than Typhoon Quinta, which killed at least 16 people and damaged infrastructure and crops in Luzon, is expected to intensify further before making landfall.
“The wind it was bringing was stronger, as well as the rain it was carrying because it was already in the typhoon category,” PAGASA meteorological specialist Ana Clauren said on CNN Philippines’ New Day.
[Translation: It brings stronger winds and rains because it is already in the typhoon category.]The United States Navy’s Joint Typhoon Warning Center (JTWS) previously reported that Rolly could turn into a “super typhoon” before making landfall over the weekend.
PAGASA classifies a cyclone as a super typhoon when it carries a maximum wind speed of more than 220 kph or more than 120 knots, while the JTWS designates a weather disturbance as a typhoon when it has a wind speed of 240 kph or 130 knots or more.
The bureau previously explained that the JWTC has a “lower threshold” for classifying super typhoons.
JWTC uses one minute as the average period for maximum sustained wind measurements, while PAGASA uses the recommended interval of 10 minutes.
Rolly, last seen east of central Luzon, had maximum sustained winds of 140 kph near the center and gusts of up to 170 kph at 4 a.m.
The center of the typhoon is expected to hit the central Luzon-Quezon area on Sunday night or Monday morning.
Currently, there are no localities located under a wind signal, but storm alerts are likely to be generated in several Bicol provinces at any time on Friday, Clauren said.
PAGASA is also monitoring Tropical Storm Atsani, which is still outside the Philippines Area of Responsibility (PAR). Once the storm enters the PAR, it will be called Siony and its trough will soak the eastern part of the Visayas and Mindanao.
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