Weather Today – May 28, 2017

Frontal system and Habagat bring rains to Luzon

Rains will prevail in most parts of Luzon on the last Sunday of May 2017.

According to PAGASA, the Frontal System is affecting the extreme Northern Luzon, while the Southwest Monsoon dominates the western section of Northern and Central Luzon. Frontal System refers to the boundary of two different air masses. Once this weather system becomes dominant in an area, it will generate convective clouds which will bring thunderstorms. Southwest Monsoon is defined as warm and moist winds moving in a southwest direction. Due to these characteristics, Habagat can cause monsoon rains that can last for a couple of days or even a week

As these weather systems prevail today, Ilocos Region, Cordillera and Batanes will experience moderate to occasionally heavy rains and thunderstorms. Residents of these areas are alerted against flash floods and landslides. In Central Luzon and the rest of Cagayan Valley, light to moderate rains and thunderstorms will be experienced. For the rest of Luzon, down to Visayas and Mindanao, partly cloudy to cloudy skies will prevail, only with isolated rain showers or thunderstorms.

While the present Habagat is categorized as weak, this, along with the Frontal System, has brought significant rainfall to some areas in Luzon. According to PAGASA Weather Forecaster Gener Quitlong, last week’s top three highest rainfall were recorded in these areas;

Batanes – 232 millimeters (mm) of rain in 24 hours – May 26, 2017
Calapan – 75.2 mm of rain in 24 hours – May 25, 2017
Casiguran – 76.2 mm of rain in 24 hours – May 24, 2017