Manila, June 30 -- A huge part of Luzon will experience rains caused by the low pressure area (LPA) inside the Philippine Area of Responsibility, the weather bureau said Tuesday.

The Philippine Atmospheric, Geophysical and Astronomical Services Administration (PAGASA) said that as of 3 a.m., the LPA was located over the coastal waters of San Pascual, Masbate.

It has a high chance of developing into a tropical cyclone and will be named Henry.

"Once it develops into a tropical cyclone, we will immediately raise wind signal no. 1 in parts of southern Luzon and the Visayas," PAGASA weather specialist Chenel Dominguez said.

On Tuesday, the LPA is forecast to bring scattered rains across Metro Manila, Calabarzon, Bicol Region, Mindoro Romb...