02/08/2026
RDRRMC CALABARZON EOC UPDATE
TROPICAL CYCLONE BULLETIN NR. 6
Tropical Depression
Issued at 2:00 AM, 03 August 2026
Valid for broadcast until the next bulletin at 5:00 AM today.
LUIS MAINTAINS ITS STRENGTH WHILE OVER THE SEA EAST OF AURORA.
Location of Center (1:00 AM):
The center of Tropical Depression LUIS was estimated based on all available data at 185 km East Northeast of Baler, Aurora or 125 km East of Casiguran, Aurora (16.1°N, 123.3°E).
Intensity:
Maximum sustained winds of 55 km/h near the center, gustiness of up to 70 km/h, and central pressure of 1002 hPa.
Present Movement:
West northwestward at 15 km/h
Extent of Tropical Cyclone Winds:
Strong winds extend outwards up to 240 km from the center
TROPICAL CYCLONE WIND SIGNALS (TCWS) IN EFFECT
TCWS No.1
• Wind threat: Strong winds
• Warning lead time: 36 hours
• Range of wind speeds: 39 to 61 km/h (Beaufort 6 to 7)
• Potential impacts of winds: Minimal to minor threat to life and property
LUZON:
The central and eastern portions of Cagayan (Enrile, Tuguegarao City, Peñablanca, Piat, Santo Niño, Camalaniugan, Tuao, Lal-Lo, Gonzaga, Alcala, Amulung, Santa Teresita, Baggao, Buguey, Solana, Rizal, Santa Ana, Gattaran, Iguig, Lasam, Aparri, Ballesteros, Abulug, Allacapan, Pamplona), Isabela, Quirino, the eastern and southern portions of Apayao (Flora, Santa Marcela, Conner, Pudtol, Luna), the eastern portion of Kalinga (City of Tabuk, Tanudan, Pinukpuk, Rizal), the eastern portion of Mountain Province (Paracelis, Natonin), the eastern portion of Ifugao (Aguinaldo, Alfonso Lista), the northern portion of Aurora (Dinalungan, Casiguran, Dilasag, Dipaculao, Baler), Islands, and the northern portion of Camarines Norte (Daet, Talisay, Paracale, Jose Panganiban, Capalonga, Vinzons)
OTHER HAZARDS AFFECTING LAND AREAS
Heavy Rainfall Outlook
Refer to Weather Advisory No. 5 issued at 11:00 PM yesterday for the heavy rainfall outlook due to TC LUIS and the Southwest Monsoon. Link: tinyurl.com/wxadvisory
Severe Winds
• The wind signals warn the public of the general wind threat over an area due to the tropical cyclone. Local winds may be slightly stronger/enhanced in coastal and upland/mountainous areas exposed to winds. Winds are less strong in areas sheltered from the prevailing wind direction.
• Minimal to minor impacts from strong winds are possible within any of the areas under Wind Signal No. 1.
• The possibility of hoisting Wind Signal No. 2 is not ruled out.
The Southwest Monsoon and the periphery of LUIS will bring strong to gale-force gusts over the following areas (especially in coastal and upland areas exposed to winds):
• Today and Tomorrow (04 August): Most of Luzon and Visayas, Lanao del Norte, Misamis Occidental, Camiguin, Surigao del Norte, Dinagat Islands, Sarangani, Davao Occidental, and Davao Oriental.
• Wednesday (05 August): Most of the Luzon and Visayas, Zamboanga Peninsula, Northern Mindanao, Dinagat Islands, Surigao del Norte, Agusan del Norte, Davao Occidental, and Davao Oriental
HAZARDS AFFECTING COASTAL WATERS
24-Hour Sea Condition Outlook
Up to moderate to rough seas over the following coastal waters:
• Up to 2.5 m: The eastern seaboard of Isabela and Davao Oriental; the northeastern seaboard of Aurora.
• Up to 2.0 m: The eastern seaboards of Batanes, Cagayan, Dinagat Islands, Surigao del Sur, and Davao Occidental; the northern and eastern seaboards of Islands, Catanduanes, and Northern Samar; the northern seaboards of Camarines Norte, Camarines Sur, and Masbate; the southern seaboard of Davao Oriental; the western seaboard of Bataan.
• Mariners of motorbancas and similarly sized vessels are advised to take precautionary measures while venturing out to sea and, if possible, avoid navigation under these conditions.
Other coastal waters have forecast wave heights of less than 2.0 m.
TRACK AND INTENSITY OUTLOOK
• It must be emphasized that heavy rainfall and severe winds may still be experienced in localities outside the landfall point and the forecast confidence cone. Refer to “Other Hazards affecting Land Areas” for more details. Furthermore, the track may still shift within the limit of the forecast confidence cone.
• LUIS will continue to move generally northwestward and may make landfall over Northern Luzon this afternoon or tonight. Afterwards, it will slowly turn northeastward then east northeastward while moving away from the Philippine landmass. The forecast track is highly uncertain and may change in the succeeding bulletins.
• LUIS is forecast to intensify into a tropical storm in the next 12 hours while moving over the sea east of Central Luzon. Once it makes landfall or close approach to Northern Luzon, it may weaken into a tropical depression today. Afterwards, a weakening trend is expected and may be downgraded into a remnant low by Wednesday (05 August) before becoming fully assimilated into the circulation of Tropical Cyclone DOLPHIN.
Considering these developments, the public and disaster risk reduction and management offices concerned are advised to take all necessary measures to protect life and property. Persons living in areas identified to be highly or very highly susceptible to these hazards are advised to follow evacuation and other instructions from local officials.
For heavy rainfall warnings, thunderstorm/rainfall advisories, and other severe weather information specific to your area, please monitor products issued by your local PAGASA Regional Services Division.
The next tropical cyclone bulletin will be issued at 5:00 AM today.
Link: tinyurl.com/TCB-tab-1
Source: Dost-PAGASA
