Luis weakens into LPA as another LPA forms; southwest monsoon also causing rain

WEATHER SYSTEMS. Satellite image of the two low pressure areas, one of them formerly Tropical Depression Luis, as of August 4, 2026, 3 am.

The two low pressure areas are affecting Central Luzon and Northern Luzon on Tuesday, August 4, while the southwest monsoon is affecting portions of Southern Luzon and Western Visayas

MANILA, Philippines – Tropical Depression Luis weakened into a low pressure area (LPA) while in the vicinity of Peñablanca, Cagayan, at 8 pm on Monday, August 3.

The LPA that used to be Luis was already in the vicinity of Baggao, Cagayan, as of 3 am on Tuesday, August 4.

Luis had made landfall in Maconacon, Isabela, at 5:30 pm on Monday, bringing torrential rain and strong winds. Hours later, Signal No. 1 was completely lifted at 11 pm, following its downgrade.