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Monday, 19th May 2025
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Typhoon (TY) Nona has slightly weakened and now packs 130 kph maximum sustained wind and 160 kph gusts. It is now over the West Philippine Sea.
A northwestward shift in movement resulted in heavy rainfall in NCR/Central Luzon last night. TY Nona will move slowly and its rainbands can possibly cover NCR, west and northeast Luzon regions until this afternoon.
Moderate to heavy rainfall in west Central Luzon and northeast Luzon, light to moderate rain for the rest of Luzon and Mindoro is expected today.
Expect light rains (to at times moderate) in NCR/Metro Manila that will continue throughout the day.
Current Information
Satellite (Himawari, Japan) image shows TY Nona’s circulation to the west off Bataan, rainbands over most of Luzon.
Latest Heavy Rainfall Warning raised by PAGASA at 630 AM today:
|
Warning Levels |
Area/s |
Impact |
|
Yellow |
Metro Manila, Bataan, Pampanga, Zambales, Rizal, Cavite, Batangas & Quezon(Gen.Nakar) |
Flooding in low lying areas. |
|
Orange |
Tarlac, Nueva Ecija & Bulacan |
Flooding is still threatening. |
|
Red |
Meanwhile, light to moderate rains affecting Laguna and the rest of Quezon province which may persist for 2-3 hours (PAGASA).
PAGASA’s Public Storm Warning Signal raised at 5 PM today:
|
Signal No. 3 |
Northern Occidental Mindoro including Lubang Island |
|
Signal No. 2 |
Bataan,Batangas,Cavite,Northern Oriental Mindoro and the rest of Occidental Mindoro |
|
Signal No. 1 |
Metro Manila, Pampanga, Southern Zambales, Bulacan, Laguna, Calamian group of Islands and the rest of Oriental Mindoro |
The tropical depression (per JMA/Japan) is located more than 1500 km east of Mindanao. JTWC have released a Tropical Cyclone Formation Alert (TCFA) for the disturbance (Invest 97W) - it is expected to move west northwest slowly towards eastern Mindanao and dissipate before or during landfall by Friday evening (Dec 18). This will still change in the next few days.
Observed rainfall from Typhoon Nona
TY Nona dumped a significant amount of rain in Mindoro, Metro Manila, Aurora, Cavite, Quezon and Rizal in the last 24 hours (mostly last night) - some exceeding the average total December rainfall (normal rainfall is average of observed total monthly rainfall from 1981-2010).
|
Station |
24-hr Rainfall (mm) |
Total Normal December Rainfall |
|
Calapan |
225.4 |
216.2 |
|
Science Garden QC |
135 |
78.7 |
|
Manila |
123 |
67.4 |
|
Baler |
116.8 |
-- |
|
Sangley Pt Cavite |
115.4 |
62.7 |
|
Tayabas |
114.8 |
421 |
|
NAIA |
110 |
28.6 |
|
Tanay |
106.6 |
-- |
|
Casiguran |
104 |
495.6 |
|
Subic Bay |
98 |
-- |
|
Clark |
87 |
-- |
|
Ambulong |
79 |
92 |
|
Tugegarao |
70 |
122.3 |
|
Aparri |
68 |
-- |
|
Infanta
|
43.5 |
-- |
|
Dagupan |
38 |
14.1 |
|
Iba |
35 |
13.2 |
Normal - average for the period 1981-2010
Rain Forecast Maps
Rain forecast maps show moderate to heavy rainfall in west Central Luzon and northeast Luzon, light to moderate for the rest of Luzon and Mindoro is expected today.
Expect light rains (to at times moderate) in NCR/Metro Manila that will continue throughout the day. (Story/Photos by: Dr. Gerry Bagtasa and Jane Delfino)
This Weather Advisory/Update is being provided by the Oscar M. Lopez Center for Climate Change Adaptation and Disaster Risk Management Foundation, Inc. (OML Center) in collaboration with Dr. Gerry Bagtasa, an Atmospheric Physicist from UP Diliman and team member of DOST Project NOAH. The Center is a not-for-profit research organization funded by the Lopez Group of Companies to provide science-based information for sound decision-making.
To know more about the OML Center, visit http://www.omlopezcenter.org/