'Bagyong Maring' PAGASA weather update October 12, 2021

MANILA, Philippines – 'Bagyong Maring' (international name: Kompasu) slightly intensifies and now over the West Philippine Sea, state weather bureau PAGASA announced in its 5:00 am update on Tuesday, October 12, 2021.

SEE ALSO: 'Bagyong Maring' PAGASA weather update October 13, 2021

At 4:00 am today, the center of Severe Tropical Storm 'Maring' was estimated based on all available data over 170 km West of Calayan, Cagayan.

Satellite image of Bagyong 'Maring' as of 4:00 am, October 12, 2021
Satellite image of Bagyong 'Maring' as of 4:00 am, October 12, 2021. Photo from PAGASA

'Bagyong Maring' has maximum sustained winds of 100 km/h near the center, gustiness of up to 125 km/h, and central pressure of 975 hPa. It is moving westward at 20 km/h. Strong winds or higher extend outwards up to 850 km from the center.


TCWS No. 2 (Damaging gale- to storm-force winds prevailing or expected within 24 hours)

  • Batanes
  • Cagayan including Babuyan Islands
  • the northern portion of Isabela (Palanan, Divilacan, Maconacon, Ilagan City, Tumauini, Cabagan, San Pablo, Santa Maria, Santo Tomas, Delfin Albano, Quirino, Gamu, Roxas, Mallig, Quezon)
  • Apayao
  • Kalinga
  • Mountain Province
  • Abra
  • Ilocos Norte
  • Ilocos Sur

TCWS No. 1 (Strong winds prevailing or expected within 36 hours)

  • the rest of Isabela
  • Nueva Vizcaya
  • Quirino
  • Ifugao
  • Benguet
  • La Union
  • Pangasinan
  • Aurora
  • Nueva Ecija
  • Tarlac
  • Zambales
  • Pampanga
  • Bulacan
  • the northern portion of Bataan (Samal, Morong, Dinalupihan, Abucay, Orani, Hermosa)
  • the northern portion of Quezon (General Nakar, Infanta) including Polillo Islands

'Bagyong Maring' PAGASA signal


After passing close or over the islands in the Babuyan Archipelago, Severe Tropical Storm 'Maring' will continue to move westward over the Luzon Strait and the West Philippine Sea throughout the forecast period.

It is forecast to exit the Philippine Area of Responsibility (PAR) this morning or afternoon.

'Bagyong Maring' PAGASA track

Outside the PAR, 'Maring' will maintain a westward heading and is likely to make landfall in the vicinity of Hainan, China tomorrow evening.

Within the next 36 hours, the storm is forecast to gradually intensify but is becoming less likely to reach typhoon category prior to making landfall over Hainan Island.


Heavy Rainfall

Today, heavy to torrential rains are highly likely over Batanes, the northern portion of Cagayan including Babuyan Islands, Cordillera Administrative Region, and Ilocos Region.

Moderate to heavy with at times intense rains are highly likely over Zambales, Bataan, Tarlac, and the rest of Cagayan. Light to moderate with at times heavy rains are likely over Metro Manila, Central Luzon, over the rest of Cagayan Valley.

Under these conditions, scattered to widespread flooding (including flash floods) and rain-induced landslides are highly likely especially in areas that are highly or very highly susceptible to these hazard as identified in hazard maps.

Under the influence of the Southwest Monsoon enhanced by Tropical Storm 'Maring', monsoon rains are possible over Western Visayas, Palawan, and Occidental Mindoro in the next 24 hours.

Severe Winds

Winds will continue to reach gale-force to storm-force strength within any of the areas where TCWS No. 2 is in effect. This may result in generally light to moderate damage to structures and vegetation.

Strong winds (strong breeze to near gale conditions) with higher gusts will continue within any of the areas where TCWS No. 1 is currently in effect. This may generally bring up to very light damage to structures and vegetation.

The expansive wind field of the severe tropical storm and the enhanced Southwest Monsoon will bring gusty conditions reaching strong to gale-force in strength over Visayas, Dinagat Islands, Surigao del Norte, Agusan del Norte, Misamis Oriental, Misamis Occidental, Camiguin, Zamboanga del Norte, and the rest of Luzon in the next 24 hours.

Coastal Inundation

A minimal to moderate risk of life-threatening storm surge reaching up to 1.0 m in height may occur in the next 24 hours. Rising sea water along with the high waves from the shoreline moving inland may cause flooding in the low-lying coastal localities of Batanes, northern Cagayan including Babuyan Islands, and Ilocos Norte.


In the next 24 hours, rough to high seas (2.8 to 7.5 m) will be experienced over the seaboards of areas where TCWS No. 2 and No. 1 are in effect. These conditions are risky for all types of sea vessels. Mariners are advised to remain in port or take shelter in port until winds and waves subside.

Moderate to rough seas (1.2 to 2.5 m) will prevail the remaining seaboards of the country. These conditions are risky for those using small seacrafts. Mariners are advised to take precautionary measures when venturing out to sea and, if possible, avoid navigating in these conditions.

Under the influence of Severe Tropical Storm 'Maring' and the enhanced Southwest Monsoon, Gale Warning remains in effect for the western seaboard of Central Luzon (not under any TCWS), the seaboards of Southern Luzon and Visayas, and the western, eastern, and northern seaboards of Mindanao.


'Maring', the 13th tropical cyclone this year, developed into a tropical depression while east of Bicol region on Thursday afternoon, October 7. This cyclone merged with the remnant low pressure area of 'Nando' on Sunday.

PAGASA predicts that 2–3 tropical cyclones may enter/develop in the Philippine Area of Responsibility (PAR) this month. On October 4, tropical depression 'Lannie' developed while east of Surigao del Norte and made 10 landfalls across northern Mindanao, the Visayas, and Palawan.

On average, there are 20 tropical cyclones that could form or enter the PAR each year. Only half of those are projected to make landfall.

The weather agency declared the onset of the rainy season on Friday, June 5.

— The Summit Express

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