Under present weather conditions, At 3:00 AM today, the Low Pressure Area (LPA) was estimated based on all available data at 1,115 km East of Northern Luzon (19.6°N, 132.1°E). Southwest Monsoon affecting Luzon and Visayas.
The 12-hour rainfall forecast is moderate to occasional heavy rains .
WATERCOURSES LIKELY TO BE AFFECTED :

+ **Ilocos Norte** - Rivers and its tributaries particularly Bulu, Banban, Bacarra-Vintar, Laoag and Quiaoit.
+ **La Union** - Rivers and its tributaries particularly Amburayan, Baroro, Lower Bauang and Aringay.
+ **Ilocos Sur** - Rivers and its tributaries particularly Lower Abra, Silay-Sta. Maria, Buaya, and Amburayan.
+ **Pangasinan** - Rivers and its tributaries particularly Balincaguing and Alaminos.

Thunderstorm Advisory No. 8 #MINPRSD
Issued at 05:00 AM 18 August 2026

Light to Moderate to Occasionally Heavy rainshowers with lightning and strong winds are expected over #ZamboangaCity, #ZamboangaSibugay, #ZamboangaDelSur, #ZamboangaDelNorte(Sibuco, Sirawai, Siocon, Tampilisan, Kalawit, Gutalac, Godod, Labason, Salug, Liloy, LeonB.Postigo, Siayan, SergioOsmeñaSr., Sindangan, Mutia, JoseDalman, Sibutad, Manukan, Pres.ManuelA.Roxas, Katipunan, DipologCity, Polanco, Piñan, DapitanCity, LaLibertad, Rizal), #MisamisOccidental, #LanaoDelSur(Maguing, Marogong, Lumbatan, Masiu, Lumbayanague, LumbaBayabao), #Bukidnon(Talakag, Baungon), #Camiguin, #MisamisOriental(Lugait, Manticao, Naawan, Initao, Gitagum, Libertad, Laguindingan, Balingoan, Kinoguitan, Talisayan, Sugbongcogon), #SurigaoDelNorte(SurigaoCity, SanFrancisco) and #DinagatIslands within the next 1-2 hours.

Moderate to occasionally heavy rainshowers with lightning and strong winds are being experienced in #ZamboangaDelNorte(Baliguian), #LanaoDelSur(Butig and SultanDumalondong) which may persist within 1-2 hours and may affect nearby areas.

Heavy Rainfall Warning No. 12 #NCR_PRSD
Weather System: Southwest Monsoon (Habagat)
Issued at: 5:00 AM, 18 August 2026(Tuesday)

RED WARNING LEVEL: Batangas(Balayan, Tuy, Lian, Calatagan, Calaca, Lemery, Laurel, Agoncillo, Talisay, Tanauan, Malvar, Balete, Mataasnakahoy, Batangas City, San Jose, Lipa, Cuenca, San Pascual, San Luis, Bauan, Santa Teresita, Alitagtag, Taal, San Nicolas, Nasugbu, Taysan, Ibaan, Rosario, Padre Garcia, Santo Tomas), Zambales(Botolan, Iba, Cabangan, San Narciso, San Felipe, San Antonio, Subic, Olongapo, Castillejos, San Marcelino) and Bataan(Morong, Hermosa, Dinalupihan, Bagac).
ASSOCIATED HAZARD: Serious FLOODING in flood-prone areas.

ORANGE WARNING LEVEL: Cavite, Bataan(Abucay, Balanga, Limay, Mariveles, Orani, Orion, Pilar, Samal), Pampanga(Bacolor, Mexico, Santa Ana, Arayat, Magalang, San Fernando, Angeles, Mabalacat, Floridablanca, Lubao, Santa Rita, Guagua, Porac, Santo Tomas, Minalin, Macabebe, Masantol, Sasmuan), Tarlac(Bamban, Capas, San Jose, Mayantoc, Tarlac City, Concepcion), Zambales(Palauig, Masinloc, Candelaria, Santa Cruz), Laguna(Calamba, Cabuyao, Santa Rosa, Binan, San Pedro, Alaminos, Calauan, Bay, Los Banos, San Pablo), Bulacan(Paombong, Hagonoy), Metro Manila(Muntinlupa, Las Pinas), Batangas(Lobo, San Juan) and Quezon(Tiaong, San Antonio).
ASSOCIATED HAZARD: FLOODING is still THREATENING.

YELLOW WARNING LEVEL: Rizal, Laguna(Lumban, Kalayaan, Liliw, Luisiana, Magdalena, Majayjay, Nagcarlan, Pagsanjan, Pila, Rizal, Santa Cruz, Victoria, Cavinti, Famy, Mabitac, Paete, Pakil, Pangil, Santa Maria, Siniloan), Quezon(Real, Sampaloc, Lucban, Tayabas, Sariaya, Candelaria, Dolores, Lucena), Metro Manila(Caloocan, Malabon, Navotas, Valenzuela, Quezon City, Paranaque, Taguig, Makati, Mandaluyong, Pasig, San Juan, Pasay, Pateros, Marikina, Manila), Bulacan(San Jose del Monte, Santa Maria, Bustos, Pandi, Baliuag, Plaridel, Pulilan, Calumpit, Malolos, Bulakan, Guiguinto, Bocaue, Balagtas, Obando, Meycauayan, Marilao), Pampanga(Apalit, Candaba, San Luis, San Simon) and Tarlac(Anao, Gerona, La Paz, Paniqui, Pura, Ramos, San Manuel, Victoria, Camiling, Moncada, San Clemente, Santa Ignacia).
ASSOCIATED HAZARD: FLOODING in flood-prone areas.

Meanwhile, light to moderate with occasional heavy rains affecting Nueva Ecija, Quezon(General Nakar, Infanta, Mauban, Pagbilao, Agdangan, Alabat, Atimonan, Buenavista, Burdeos, Calauag, Catanauan, General Luna, Guinayangan, Gumaca, Jomalig, Lopez, Macalelon, Mulanay, Padre Burgos, Panukulan, Patnanungan, Perez, Pitogo, Plaridel, Polillo, Quezon, San Andres, San Francisco, San Narciso, Tagkawayan, Unisan) and Bulacan(Angat, Dona Remedios Trinidad, Norzagaray, San Ildefonso, San Miguel, San Rafael) which may persist within 3 hours.
The public and the Disaster Risk Reduction and Management Offices concerned are advised to MONITOR the weather condition and watch for the next warning to be issued at 8:00 AM today.
For more information and queries, please call telephone numbers 8927-1335 and 8927-2877 or log on to www.pagasa.dost.gov.ph.

Heavy Rainfall Warning No. 5 #VISPRSD
Weather System: Southwest Monsoon (Habagat)
Issued at 05:00 AM 18 August 2026

Red Warning: #OccidentalMindoro
Associated Hazard: SERIOUS FLOODING is expected in low-lying areas and LANDSLIDES in mountainous areas.

Orange Warning: #Palawan(Coron, Busuanga, Culion), #Iloilo(Oton, IloiloCity, Leganes and Pavia)
Associated Hazard: FLOODING IS THREATENING in low-lying areas and LANDSLIDES in mountainous areas.

Meanwhile, Light to Moderate with occasionally Heavy rains are expected over #Iloilo(SanMiguel, SantaBarbara, Igbaras, BarotacNuevo, Pototan, NewLucena, Cabatuan, Leon, Alimodian, Tubungan), #Guimaras(NuevaValencia, SanLorenzo, Sibunag), #Antique(Barbaza, Belison, Bugasong, Culasi, Hamtic, LauaAn, Libertad, Pandan, Patnongon, SanJose, SanRemigio, Sebaste, Sibalom, Tibiao, Valderrama), #NegrosOccidental(CityOfTalisay, Murcia, LaCarlotaCity, CityOfKabankalan), #NegrosOriental(Zamboanguita, Basay, Siaton, Sibulan, Amlan, SanJose, Mabinay, Manjuyod, Bindoy and Ayungon) within the next 30 minutes to an hour.

The above conditions are being experienced in #Palawan(Cuyo, Magsaysay, Agutaya, Taytay, ElNido, Linapacan), #Iloilo(Miagao, SanJoaquin, Guimbal, Zarraga, Dumangas, Tigbauan), #Guimaras(Buenavista, Jordan), #Antique(AniniY, Caluya, TobiasFornier), #NegrosOccidental(CityOfVictorias, EnriqueB.Magalona, SilayCity, BacolodCity, Pulupandan, BagoCity, Valladolid, SanEnrique, Pontevedra, Manapla, CadizCity, HinobaAn, CityOfSipalay, Cauayan, Candoni, Ilog), #NegrosOriental(CityOfBayawan, SantaCatalina, Dauin, Bacong, DumagueteCity, Valencia, BaisCity, CityOfTanjay and Pamplona) which may persist within 2 to 3 hours and may affect nearby areas.

The public and the Disaster Risk Reduction and Management Offices concerned are advised to MONITOR the weather condition and watch for the next warning to be issued at 08:00 AM Today.

Heavy Rainfall Warning No. 3 #SLPRSD
Weather System: Southwest Monsoon (Habagat)
Issued at 05:00 AM 18 August 2026

Yellow Warning: #OrientalMindoro
Associated Hazard: FLOODING in low lying areas and near river channels.

Meanwhile, Moderate to heavy rains are expected over #Romblon(SanFernando, Cajidiocan, Magdiwang, Concepcion, Banton and Corcuera) within the next 2 to 3 hours.

The above conditions are being experienced in #Romblon(Looc, Ferrol, SantaFe, Alcantara, Odiongan, SanAndres, SanAgustin, SantaMaria, Calatrava, Romblon and SanJose) which may persist within 2 to 3 hours and may affect nearby areas.

The public and the Disaster Risk Reduction and Management Offices concerned are advised to MONITOR the weather condition and watch for the next warning to be issued at 08:00 AM Today.

Rainfall Advisory No. 71 #NLPRSD
Weather System: Southwest Monsoon (Habagat)
Issued at 05:00 AM 18 August 2026

Light to Moderate to at times Heavy rains are expected over #Batanes, #LaUnion(Agoo, Bacnotan, Bagulin, Bauang, Burgos, Naguilian, Rosario, CityOfSanFernando, SanJuan, Caba, Aringay, Tubao, Pugo, SantoTomas), #Cagayan(Calayan, Peñablanca, Baggao, Gattaran, LalLo, Gonzaga, SantaAna), #Aurora(Dilasag), #Ifugao(Tinoc), #Quirino(Cabarroguis, Aglipay), #Isabela(Dinapigue, Palanan, SanMariano, Divilacan, IlaganCity, Tumauini, SanPablo, Cabagan, Maconacon, Jones, SanAgustin, SanGuillermo, Echague), #Benguet(Atok, BaguioCity, Bakun, Bokod, Buguias, Itogon, Kabayan, Kibungan, LaTrinidad, Mankayan, Sablan, Tuba), #NuevaVizcaya(Aritao, Bambang, DupaxDelNorte, DupaxDelSur, Kasibu, Kayapa, SantaFe), #IlocosSur(Alilem, Tagudin, Suyo, Sigay, SantaCruz, SantaLucia and Salcedo) within the next 2 to 3 hours.

The above conditions are being experienced in #LaUnion(Balaoan, Bangar, Luna, SanGabriel, Santol, Sudipen), #Aurora(Baler, Casiguran, Dingalan, Dipaculao, MariaAurora, SanLuis, Dinalungan), #Quirino(Maddela, Nagtipunan), #Benguet(Kapangan, Tublay), #NuevaVizcaya(AlfonsoCastaneda), #Pangasinan and #IlocosSur(Sugpon) which may persist within 2 to 3 hours and may affect nearby areas.

The public and the Disaster Risk Reduction and Management Offices concerned are advised to MONITOR the weather condition and watch for the next warning to be issued at 08:00 AM Today.

All are advised to take precautionary measures against the impacts associated with these hazards. Residents along mountain slope are advised for possible landslides, mudslides, rockslides and flash flood.