MANILA — Two weather systems now affecting the country will bring rains in many parts of the country on Friday, according to the Philippine Atmospheric, Geophysical and Astronomical Services Administration (PAGASA).

PAGASA said northeast monsoon prevails over Northern Luzon while tail-end of a cold front affects eastern section of Southern Luzon.

The northeast monsoon or “hanging amihan” is the cold wind from China and Siberia that blows into the country from late October until mid-February. It is usually associated with the Christmas season.

The tail-end of a cold front serves as the front boundary of two air masses, hot and cold, that produces clouds and rain.

For Friday forecast, PAGASA said cloudy skies with light to moderate rains and isolated thunderstorms is expected over Bicol Region and the province of Quezon while cloudy skies with light rains will be experienced over the islands of Batanes, Calayan and Babuyan.

Partly cloudy to cloudy skies with isolated light rains will prevail over Ilocos Region, Cordillera, and the rest of Cagayan Valley while partly cloudy to cloudy skies with isolated rainshowers or thunderstorms will prevail over Metro Manila and the rest of the country.

It added moderate to strong winds blowing from the northeast will prevail over Northern Luzon and its coastal waters will be moderate to rough. Elsewhere, winds will be light to moderate coming from the east to northeast with slight to moderate seas.

The state weather bureau has not issued gale warning as fisherfolk are safe to venture into the seas. PNA / northboundasia.com