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Though we are already halfway into the month, there is still no trace of southwest monsoon or “hanging habagat” within the Philippine Area of Responsibility (PAR). According to PAGASA, habagat is characterized as warm and moist air that affects the country, particularly the western section. This is also one of the “tag-ulan indicators.”
It was on June 10 last year when the weather bureau announced the onset of rainy season. But as of now, PAGASA Weather Forecaster Gener Quitlong said that the habagat has not yet been observed in the country. Though we are about to step into the 2nd half of June, the onset of rainy season might come a little late compared to the previous year.
Quitlong added that the ridge of the high pressure area (HPA) and the influence of the weak El Niño are just some of the factors for the delay of “tag-ulan.” He also explained that a low pressure area or tropical cyclone is needed to generate or direct the southwesterly winds towards the Philippines.
Today, the ridge of HPA continues to extend over Northern and Central Luzon while the intertropical convergence zone (ITCZ) is expected to affect Mindanao. This weather system is an area where winds coming from the northern and southern hemispheres meet. As winds converge, clouds are formed, bringing rains over the affected areas.
ITCZ is also considered as the breeding ground of low pressure areas that may develop into tropical cyclones. However, Quitlong said that as of now, no weather disturbance is expected to affect the country within the week.
Based on the 24-hour weather forecast of PAGASA, this weather system will dump light to moderate rains and thunderstorms, not only in Mindanao, but also over Palawan and Visayas. The rest of the country, including Metro Manila, will have generally fair weather with the chance of isolated thunderstorms mostly in the afternoon or evening. All are advised to bring umbrellas and monitor updates from PAGASA.
Watch the interview with PAGASA Weather Forecaster Gener Quitlong: