The Philippine Atmospheric Geophysical and Astronomical Services Administration (Pagasa) said typhoon "Juan," which was previously spotted over the Northern Pacific Ocean, penetrated the Philippine area of responsibility before noon yesterday.
The two weather disturbances are expected to enhance the southwest monsoon, bringing rains over the western sections of the country.
"Inday" was monitored at 400 kilometers northeast of Basco in Batanes or 400 kilometers east northeast of Kaoshiung in Southern Taiwan, Pagasa said.
"Inday" packed maximum center winds of 85 kilometers per hour and gusts of up to 100 kph.
Public Storm Signal Number 1 has been hoisted over Basco, the Batanes and Babuyan group of islands.
Inday was forecast to be 300 kilometers north-northeast of Basco today, Pagasa said.
By tomorrow, it is expected to be 190 kilometers north of Basco and 160 kilometers west-northwest of Basco and 180 kilometers south of southern Taiwan by Friday. — Sheila Crisostomo