NENENG ACCELERATES AS IT MOVES OVER THE COASTAL WATERS OF EASTERN TAIWAN.

Location of eye/center : The center of Tropical Depression NENENG was estimated based on all available data at at 390 km North of Itbayat, Batanes (24.3, 121.9).
Strength : Maximum winds of 45 kph near the centerand gustiness of up to 55 kph.
Forecast movement : Forecast to move West Northwestward at 30 kph

Forecast position :
Aug 20, 2026 02:00 PM - 500 km North of Itbayat, Batanes or over the coastal waters of Keelung City, Taiwan (OUTSIDE PAR)

HAZARDS AFFECTING LAND AREAS
Heavy Rainfall Outlook

Refer to Weather Advisory No. 74 issued at 5:00 AM today for the heavy rainfall outlook due to the Southwest Monsoon.

Severe Winds

The Southwest Monsoon will bring strong to gale-force gusts over the following areas (especially in coastal and upland areas exposed to winds):
Today: Most of Luzon and Visayas, Zamboanga Peninsula, Northern Mindanao, and Davao Region.
Friday (21 August): Most of Luzon, Panay Island, Negros Occidental, Northern Samar, and Davao Oriental.
Saturday (22 August): Most of Luzon and Visayas, and Davao Oriental.

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 Batanes; the northern and western seaboards of Babuyan Islands; the northern seaboard of Ilocos Norte.
Up to 3.0 m: The seaboards of Ilocos Sur, La Union, and Zambales; the western seaboard of Pangasinan; the northern seaboard of Kalayaan Islands; the remaining seaboard of Ilocos Norte.
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 northern seaboard of Pangasinan; the western seaboard of Batangas; the western and southern seaboards of Bataan; the remaining seaboards of Babuyan Islands and Kalayaan Islands; the seaboards of Lubang Islands.
Up to 2.0 m: The western seaboard of Occidental Mindoro; the seaboards of Surigao del Sur; the northern and western seaboards of northern Palawan including Calamian Islands; the eastern seaboard of 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.

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 is forecast to decelerate while moving northward. The center of NENENG may continue to move over the waters off the eastern coast of Taiwan or may make landfall over the northern portion of Taiwan. In the next 12 hours, this tropical cyclone may weaken into a remnant low.

Under present weather conditions, At 3:00 AM today, the center of Tropical Depression "NENENG" was estimated based on all available data at 390 km North of Itbayat, Batanes (24.3°N, 121.9°E) with maximum sustained winds of 45 km/h near the center and gustiness of up to 55 km/h. It is moving West Northwestward at 30 km/h. Southwest Monsoon affecting Luzon.
The 12-hour rainfall forecast is Light to moderate rains and thunderstorms.
WATERCOURSES LIKELY TO BE AFFECTED :

+ **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.
+ **Ilocos Norte** - Rivers and its tributaries particularly Bulu, Banban, Bacarra-Vintar, Laoag and Quiaoit.

Heavy Rainfall Warning No. 28-Final #NCR_PRSD
Weather System: Southwest Monsoon (Habagat)
Issued at: 5:00 AM, 20 August 2026(Thursday)

Light to moderate rains was observed over Zambales and Bataan for the past 3 hours. With this development all RAINFALL WARNING in these areas are now terminated.
Meanwhile, light to moderate with occasional heavy rains affecting Bataan(Morong, Bagac) which may persist within 3 hours and may affect nearby areas.
The public and the Disaster Risk Reduction and Management Offices concerned are still advised to MONITOR the weather condition.
For more information and queries, please call telephone numbers 8927-1335 and 8927-2877 or log on to www.pagasa.dost.gov.ph.