MANILA -- Tropical storm "Isang" has maintained its strength as it heads west northwest at 17 kilometers per hour, state weather agency Philippine Atmospheric, Geophysical and Astronomical Services Administration (PAGASA) said Monday morning.
"Isang" has a maximum sustained winds of 65 km/hr, and gustiness of up to 80 km/hr. It was last eyed at 330 km east of Basco, Batanes.
Tropical cyclone warning signal (TCWS) no. 2 was raised over Batanes, while TCWS no. 1 was raised over Babuyan Group of Islands. Stormy weather and gusty winds will be experienced over these areas, PAGASA added.
PAGASA said "Isang" enhances the southwest monsoon which may cause light to moderate and occasional heavy rains over Metro Manila, Calabarzon, central Luzon, Mimaropa, Bicol and Visayas.
Moderate to strong winds will blow from northwest to west over central and northern Luzon, and from southwest over the rest of the archipelago. The country's coastal waters will be moderate to rough, PAGASA said.
Source: Philippine News Agency