The Philippine Atmospheric, Geophysical, and Astronomical Services Administration (Pagasa) reported on Monday that a low-pressure (LPA) is expected to be a storm first before entering the Philippine Area of Responsibility (PAR) by Wednesday.
The LPA is seen to be 1,740 kilometers east of Southern Luzon, outside PAR, and will most likely intensify into a storm in the next 36 to 48 hours.
The storm will be named “Marilyn” as soon as it enters the country’s jurisdiction.
Two of the three LPAs are outside and 1 is inside the PAR.
Meanwhile, a second LPA is spotted within PAR but, according to Pagasa, it has a low chance of developing into a storm.
As of late yesterday afternoon, the LPA was 580 km northeast of Basco, Batanes but finally left PAR just few hours after 3 P.M.
The third LPA, however, has been enhancing the southwest monsoon. It was seen outside PAR, 405 km of extreme northern Luzon.
Pagasa said this southwest monsoon (hanging habagat) will more likely bring moderate to heavy rains over Ilocos Region, Cordillera Region, and Central Luzon.
Cagayan Valley Region, Calabarzon (Cavite, Laguna, Batangas, Rizal, and Quezon), and Metro Manila, meanwhile, will experience cloudy skies with scattered rain showers.
At 5 P.M. yesterday, according to the weather bureau, Zambales, Tarlac, and Pampanga are marked yellow rainfall — a warning of possible flooding in low-lying areas and near river channels.