18/08/2026
TROPICAL CYCLONE BULLETIN NR. 1
Tropical Depression
Issued at 5:00 PM, 18 August 2026
Valid for broadcast until the next bulletin at 11:00 PM today.
THE LOW PRESSURE AREA EAST OF EXTREME NORTHERN LUZON DEVELOPED INTO TROPICAL DEPRESSION NENENG.
• Location of Center (4:00 PM)
The center of Tropical Depression NENENG was estimated based on all available data at 1,025 km East of Extreme Northern Luzon (20.4°N, 131.8°E).
• Intensity
Maximum sustained winds of 45 km/h near the center, gustiness of up to 55 km/h, and central pressure of 1002 hPa
• Present Movement
Northwestward at 20 km/h
• Extent of Tropical Cyclone Winds
Strong winds extend outwards up to 380 km from the center
TROPICAL CYCLONE WIND SIGNALS (TCWS) IN EFFECT
No Wind Signal is currently hoisted
OTHER HAZARDS AFFECTING LAND AREAS
Heavy Rainfall Outlook
Refer to Weather Advisory No. 68 issued at 5:00 PM today for the heavy rainfall outlook due to the Southwest Monsoon.
Link: tinyurl.com/wxadvisory
Severe Winds
The enhanced Southwest Monsoon will bring strong to gale-force gusts over the following areas (especially in coastal and upland areas exposed to winds):
• Today (18 August): Most of the country.
• Tomorrow (19 August): Most of Luzon and Visayas, Zamboanga Peninsula, Northern Mindanao, and Davao Region.
• Thursday (20 August): Most of Luzon and Visayas, Zamboanga Peninsula, Northern Mindanao, and Davao Region.
HAZARDS AFFECTING COASTAL WATERS
24-Hour Sea Condition Outlook
Up to rough seas over the following coastal waters:
• Up to 3.5 m: The seaboards of Zambales and Lubang Islands; the western seaboards of Pangasinan and Bataan.
• Up to 3.0 m: The seaboards of Ilocos Norte, Ilocos Sur, and Kalayaan Islands; the western seaboards of Babuyan Islands, Occidental Mindoro, Calamian Islands, northern Palawan, and Davao Oriental.
• 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.
Up to moderate seas over the following coastal waters:
• Up to 2.5 m: The seaboards of La Union and Surigao del Sur; the western seaboards of Batanes, Cavite, Batangas, and mainland Palawan.
• Up to 2.0 m: The seaboards of Isabela, northern Aurora, Romblon, Cuyo Islands, Cagayancillo Islands, Antique, and Davao Occidental; the northern seaboards of Camarines Norte and Camarines Sur; the northern and eastern seaboards of Catanduanes and northern Samar; the eastern seaboards of Albay, Sorsogon, Eastern Samar, Dinagat Islands, and Siargao-Bucas Grande Islands; the southern seaboards of Marinduque, Quezon, Iloilo, Guimaras, and Davao Oriental; the western seaboard of Negros Occidental; the remaining seaboards of Batanes, Pangasinan, Calamian Islands, and northern Palawan.
• 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.
• NENENG will continue moving generally west northwestward throughout the forecast period. This tropical cyclone is less likely to make landfall over the country and will remain far from the Philippine landmass.
• NENENG is expected to be a short-lived tropical cyclone and is forecast to remain a tropical depression throughout the forecast period before weakening into a remnant low over Taiwan on Thursday (20 August).
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 11:00 PM today.
DOST-PAGASA
Link: tinyurl.com/TCB-tab-1
