Maymay and Luis Turn Habagat Rains Into Wide Luzon Disruption

Nearly 42,000 people across six regions felt the combined punch of Tropical Cyclones Luis and Maymay plus the enhanced southwest monsoon by early August 6, while Tropical Storm Maymay made landfall over Magsingal, Ilocos Sur, and quickly weakened. Government work and classes shut down in Metro Manila and more than 20 provinces as the real force, the monsoon rains, kept dumping water on already saturated ground.

The cyclones themselves stayed modest. The lasting trouble came from how they fed the habagat.

Landfall in Magsingal Then a Quick Fade

Tropical Storm Maymay, international name Kujira, crossed the coast near Magsingal in Ilocos Sur in the early hours of August 6. Hours earlier the PAGASA tropical cyclone bulletin for Maymay had placed its center about 115 km west of Sinait, Ilocos Sur, with maximum sustained winds of 65 to 75 km/h and gusts near 90 km/h. It was moving east-northeast at roughly 10 km/h.

After landfall the system slid inland across northern Luzon, weakened into a tropical depression over Abra and Kalinga, and was forecast to drop further to a low-pressure area by afternoon or evening. Terrain interaction sped the decline. Mountains disrupt the low-level inflow that a storm needs to hold its core together, so the crossing of the Cordillera cut into Maymay faster than open-water friction alone would have done.

Signal No. 2 that had covered parts of Ilocos Norte, Ilocos Sur and northern La Union was lowered; by mid-morning only Signal No. 1 remained over a long list of northern and central Luzon provinces. The step-down tracked the loss of organized winds, not the end of the rain threat.

1. August 3: Tropical Depression Luis makes landfall over Maconacon, Isabela, then weakens.
2. August 4-5: LPA west of La Union develops into Tropical Depression then Tropical Storm Maymay; Signal No. 1 and later No. 2 raised.
3. Early August 6: Maymay landfall near Magsingal, Ilocos Sur; rapid weakening begins as it crosses the Cordillera.

Gale warnings stayed active on western Luzon seaboards. Wave heights reached 5 meters in places, keeping small craft in port. Those marine hazards outlasted the inland wind signals because the monsoon fetch across the West Philippine Sea did not shut off when the storm center moved over land.

Two Weak Systems Feed One Strong Monsoon

Luis was the season’s twelfth named cyclone. Maymay followed almost immediately. Neither produced typhoon-force winds over land. Their main job was to pump moisture into the southwest monsoon already parked over the country.

PAGASA heavy-rainfall outlooks for August 6-9 showed orange-level alerts for La Union and Benguet and yellow-level warnings stretching across Ilocos Sur, Pangasinan, parts of the Cordillera, Zambales, Bataan, Tarlac, Pampanga, Bulacan, Laguna, Cavite, Batangas, Quezon, Occidental Mindoro, Antique and Metro Manila. Flooding was likely in urban and low-lying zones and along river channels. Landslides remained a threat on mountain slopes.

• Orange-level rainfall: La Union and Benguet
• Yellow-level rainfall: Ilocos Sur, Pangasinan, parts of the Cordillera, Zambales, Bataan, Tarlac, Pampanga, Bulacan, Laguna, Cavite, Batangas, Quezon, Occidental Mindoro, Antique and Metro Manila
• Shared hazards: urban and riverine flooding plus slope landslides where ground was already wet

That is the second-order pattern. The cyclone centers draw the headlines. The monsoon, turbocharged by their circulation, delivers the water volume that fills rivers and closes roads far from the landfall point. Outer bands and the broader monsoonal flow do the heavy lifting once the moisture is in place.

Local reports on August 6 showed the Baroro River in San Juan, La Union, overflowing and cutting the bridge. Similar scenes played out wherever catchments were already full from days of habagat rain. Saturated soil has nowhere left to store new water, so each additional band runs off into channels that were already near capacity.

Nearly 42,000 Affected Across Six Regions

The Office of Civil Defense reported 41,979 individuals, or 12,432 families, affected in the Ilocos Region, Cagayan Valley, Central Luzon, Bicol, Zamboanga Peninsula and the Cordillera Administrative Region as of its 6 a.m. tally on August 5. Of those, 5,818 persons from 1,821 families were inside 14 evacuation centers. One house sustained partial damage. No fatalities, injuries or missing persons were listed at that point. Government assistance already distributed stood at P1,221,039.

By August 6 the National Disaster Risk Reduction and Management Council updated the displaced figure to 2,215 families, or 6,929 individuals. Affected totals continued to climb in some provincial reports as rain persisted. Early tallies are almost always incomplete while water is still rising.

Regions hit hardest for displacement sat under the heaviest monsoon bands rather than directly under the cyclone eyes. That split is typical when weak systems act mainly as moisture pumps. The single partially damaged house in the early count underscores the same point: the human impact ran through water and displacement, not through destructive wind.

• 41,979 people counted affected in the first consolidated OCD report
• 14 evacuation centers open at the same snapshot
• Zero confirmed deaths in the initial OCD bulletin
• P1.22 million already moved as food and non-food aid

Aid moving before a large damage tally appears is consistent with pre-emptive evacuation and relief for families leaving flood-prone barangays. The climb in the displaced count from the August 5 center population to the August 6 NDRRMC update shows how quickly the ledger changes while rain is still falling.

Classes and Offices Go Dark from Manila North

Malacañang suspended government work and classes at all levels in the National Capital Region and a long list of Luzon provinces for August 6. The Palace suspension of work and classes cited the projected heavy rainfall from Maymay and the enhanced monsoon. An earlier circular had already halted activity in NCR plus Abra, Ilocos Sur, La Union, Benguet, Pangasinan and Zambales on the afternoon of August 5.

The expanded Thursday list covered Ilocos Sur, La Union, Benguet, Pangasinan, Abra, Zambales, Kalinga, Mountain Province, Ifugao, Ilocos Norte, Apayao, Nueva Vizcaya, Tarlac, Nueva Ecija, Bataan, Pampanga, Bulacan, Rizal, Cavite, Batangas, Laguna and Occidental Mindoro, among others. The full list of provinces under suspension ran to more than twenty. The Metropolitan Manila Development Authority also paused the expanded number-coding scheme for the day.

• Metro Manila: all government offices and all school levels
• Ilocos Region and Cordillera provinces under Signal or heavy-rain alerts
• Central Luzon corridor from Zambales through Nueva Ecija and Bulacan
• Southern Tagalog provinces including Cavite, Laguna, Batangas and Rizal
• Occidental Mindoro and selected Visayas edges catching the monsoon surge

Senate offices followed the national cue. Private employers and local governments added their own stoppages where flooding had already closed roads. Two consecutive days of halted public activity, stretching from the capital through northern industrial corridors, compound quickly for daily-wage workers and for firms that depend on open roads and open counters.

Flights and Local Roads Take Hits

Domestic flights faced cancellations and diversions from August 4 onward as low ceilings and heavy rain closed northern airports for stretches. Civil Aviation Authority notices listed multiple Cebu Pacific and other carrier segments into Tuguegarao and similar destinations scrubbed. Seaboard gale warnings kept fishing fleets and inter-island craft tied up.

On the ground the overflow of the Baroro River and similar local waterways turned secondary roads into temporary streams. Landslide risk alerts from the Mines and Geosciences Bureau stayed active for steep terrain in the Cordillera and Sierra Madre flanks. Power interruptions were reported in scattered municipalities but had not yet produced a nationwide outage tally.

Each closed airport segment and each cut bridge adds a separate delay layer on top of the office and school stoppages. Freight, passengers, and local commerce all feel the same saturated ground.

Luis Opens the August Name List

Luis carried the twelfth name of the 2026 Philippine season and the first of August. Maymay came next on the official 2026 Philippine cyclone name list. PAGASA rotates four regular sets; 2026 draws from the column that begins with Ada and runs through Luis, Maymay, Neneng and beyond. The agency had already forecast two to four systems for the month.

A separate typhoon, international name Dolphin, lingered well east-northeast of Luzon and was monitored for possible later entry, but it stayed outside the main action during the Maymay landfall window. The close spacing of Luis and Maymay inside a single week is what allowed their outer circulations to keep the monsoon continuous rather than letting a dry break reset the ground.

• Luis: twelfth named system of 2026, first of August, landfall over Maconacon, Isabela on August 3
• Maymay: next name on the list, landfall near Magsingal, Ilocos Sur on August 6
• Dolphin: separate system east-northeast of Luzon, outside the main landfall window
• Month outlook: two to four systems already forecast for August

When two named systems arrive that close together, catchments never get the multi-day pause they need to drain. The habagat stays fed, and the next round of rain falls on ground that is still wet from the last.

Rainfall Alerts Outlast the Wind Signals

By mid-morning on August 6 only Signal No. 1 remained over the long list of northern and central Luzon provinces. Signal No. 2 over parts of Ilocos Norte, Ilocos Sur and northern La Union had already been lowered. The labeled storm was fading over Abra and Kalinga and was expected to become a low-pressure area by afternoon or evening.

Rainfall outlooks told a different story. Orange and yellow heavy-rainfall alerts still covered a wide belt for August 6-9. Gale warnings on western Luzon seaboards stayed in force, with wave heights still reaching 5 meters in places. Small craft remained in port.

Wind signals follow the cyclone core. Rainfall and marine warnings follow the monsoon moisture and the fetch across open water. Households and local governments that watch only the signal map can miss the longer water threat that PAGASA and NDRRMC messaging kept stressing.

How Back-to-Back Systems Strain Local Offices

Local disaster offices that emptied evacuation centers after Luis refilled them within forty-eight hours for Maymay. That short cycle leaves little time to restock relief goods, reset center logistics, or clear drainage before the next wave of families arrives.

The early OCD snapshot already showed 14 centers open and P1,221,039 in assistance moving, with affected families spread across six regions. The later NDRRMC displaced update climbed further while rain continued. Municipal budgets feel that tempo even when national aid is already on the road.

1. After Luis: centers emptied once the first system weakened.
2. Inside forty-eight hours: centers reopened for Maymay and the enhanced monsoon.
3. Through August 9: rainfall warnings kept the reopen risk alive after the storm labels faded.

The strain is administrative as much as physical. Staff, transport, and relief inventories turn over twice in a compressed window, and the monsoon bands that drive the second opening sit far from the original landfall points.

What the Rain Leaves Behind

Direct wind damage stayed light: one partially damaged house in the early OCD count. The larger bill will appear in flooded rice fields, delayed plantings, spoiled harvests already in the ground, lost fishing days, and the economic drag of two consecutive days of halted government and school activity across the capital and northern industrial corridors.

Farmers in rain-fed lowlands and fishing communities along the western seaboard absorb the first costs. Transport firms and daily-wage workers feel the second wave when roads stay impassable and offices stay closed. Local disaster offices that emptied evacuation centers after Luis refilled them within forty-eight hours for Maymay. That cycle of short-notice reopenings strains municipal budgets even when national aid is already moving.

As of midday August 6 the depression continued to drift eastward over the Cordillera and was expected to exit toward the Philippine Sea as a low. Rainfall warnings, however, extended through August 9. The systems themselves are fading. The water they helped dump will take longer to drain.

Preparedness messaging from PAGASA and NDRRMC emphasized exactly this point: watch the monsoon totals and local river gauges more than the Saffir-Simpson-style labels on weak cyclones. For households in the yellow and orange rainfall belts that advice remains the practical one until the ground dries.