ADVERTISEMENT
Manila Bulletin devider Philippines devider Metro Manila devider Muntinlupa LGU activates siren to warn residents about 'Opong'

Muntinlupa LGU activates siren to warn residents about 'Opong'

Published Sep 25, 2025 11:18 am


The Muntinlupa City government activated its siren (public address system) to warn residents about severe tropical storm “Opong.”

The Muntinlupa City government's public address system (Screenshot from MCDDRM video)
The Muntinlupa City government's public address system (Screenshot from MCDDRM video)

The Muntinlupa City Department of Disaster Resilience and Management (MCDDRM) used the siren on Sept. 25 when the Philippine Atmospheric, Geophysical and Astronomical Services Administration (PAGASA) raised the Tropical Cyclone Wind Signal No. 1 in Metro Manila due to the possible effects of “Opong.” 

“Bilang bahagi ng paghahanda, nagpatunog ng Public Address System / Sirena ang Pamahalaang Lungsod ng Muntinlupa upang ipaalam sa lahat ng residente at bigyang babala ang mga nasa mababang lugar na maging alerto at handa sa posibleng pagbaha dulot ng malakas na ulan (As part of the preparations, the Muntinlupa City Government has sounded the Public Address System / Siren to inform all residents and warn those in low-lying areas to be alert and prepared for possible flooding caused by heavy rain),” the MCDDRM posted on Facebook. 

The Muntinlupa Operations Center (Photo from MCDDRM Facebook account)
The Muntinlupa Operations Center (Photo from MCDDRM Facebook account)
Rescue boats of the Muntinlupa City Department of Disaster Resilience and Management (Photo from MCDDRM Facebook account)
Rescue boats of the Muntinlupa City Department of Disaster Resilience and Management (Photo from MCDDRM Facebook account)

It added, “Ang Tropical Cyclone Wind Signal No. 1 ay may lead time na 36 hours kaya naman hinihikayat ang lahat na gawin ang nararapat na mga paghahanda para sa banta ng paparating na Bagyong #OpongPH (Tropical Cyclone Wind Signal No. 1 has a lead time of 36 hours, so everyone is encouraged to make appropriate preparations for the threat of the approaching Typhoon #OpongPH).” 

It reminded residents the following: 

• Be vigilant of the weather

• Monitor the condition of the river and flood-prone areas

• Continue to follow the official advisories of the City Government

In a bulletin issued at 11 a.m. on Sept. 25, PAGASA announced that as of 10 a.m., "the center of Severe Tropical Storm Opong was estimated based on all available data at 335 km East of Guiuan, Eastern Samar (11.1°N, 128.8°E)." 

The TCWS is in effect in the following areas, according to PAGASA: 

TCWS No. 2

Wind threat: Gale-force winds

Luzon

Camarines Norte, Camarines Sur,Catanduanes, Albay, Sorsogon, and the northern portion of Masbate(Aroroy, Baleno, City of Masbate, Mobo,Uson, Dimasalang, Palanas, Cataingan,Pio V. Corpuz) including Ticao and Burias Islands

Visayas

Northern Samar, the northern and central portions of Eastern Samar (Can-Avid, Maslog, San Policarpo, Taft, Dolores, Jipapad, Oras, Arteche, Sulat, San Julian), the northern and central portions of Samar (San Jorge, San Sebastian, Villareal, Zumarraga, Matuguinao, Pinabacdao, Almagro, Calbayog City, Talalora, Jiabong, Pagsanghan, City of Catbalogan, Gandara, Motiong, Santo Niño, Tagapul-An, San Jose de Buan, Santa Margarita, Tarangnan, Calbiga, Daram, Paranas, Hinabangan), and the northern portion of Biliran (Almeria, Kawayan, Maripipi, Culaba)

Warning lead time: 24 hours

Range of wind speeds: 62 to 88 km/h (Beaufort 8 to 9)

Potential impacts of winds: Minor to moderate threat to life and property

TCWS No. 1

Wind threat: Strong winds

Luzon 

The central and southern portions of Isabela (Alicia, San Mateo, Aurora, Ramon, Naguilian, Dinapigue, San Guillermo, Luna, City of Cauayan,Echague, Angadanan, Benito Soliven, City of Santiago, Reina Mercedes, San Agustin, San Manuel, Cabatuan, Gamu, San Isidro, Cordon, Jones, Burgos, San Mariano, Palanan), Quirino, Nueva Vizcaya, Ifugao, the southwestern portion of Mountain Province (Bauko, Sabangan, Tadian), Benguet, the southern portion of Ilocos Sur (Sugpon, Alilem), La Union, Pangasinan, Aurora, Nueva Ecija, Tarlac, Zambales, Bataan, Pampanga, Bulacan, Metro Manila, Rizal, Cavite, Batangas, Laguna, Quezon, Romblon, Marinduque, Occidental Mindoro, Oriental Mindoro, Calamian Islands, and the rest of Masbate

Visayas

The rest of Eastern Samar, the rest of Samar, the rest of Biliran, Leyte, Southern Leyte, thenorthern portion of Cebu (Daanbantayan, Medellin, City of Bogo, Tabogon, San Remigio, Borbon, Sogod, Tabuelan, Catmon, Tuburan, Carmen, Danao City, Asturias, Compostela) including Camotes and Bantayan Islands, the northern portion of Negros Occidental (City of Escalante, Toboso, Calatrava, Sagay City, Cadiz City, Manapla, City of Victorias, Enrique B. Magalona, Silay City, City of Talisay), the northern portion of Iloilo (San Dionisio, Batad, Balasan, Carles, Sara, Concepcion, Ajuy, Lemery, Barotac Viejo, San Rafael, Banate, Anilao, San Enrique, City of Passi, Bingawan, Calinog, Lambunao, Dueñas, Dingle), Capiz, Aklan, and the northern portion of Antique (Libertad, Pandan, Sebaste, Culasi, Tibiao, Barbaza, Bugasong, Laua-An, Caluya)

Mindanao

Siargao Island, Bucas Grande Islands, and Dinagat Islands

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

Related Tags

metro news Muntinlupa
ADVERTISEMENT
.most-popular .layout-ratio{ padding-bottom: 79.13%; } @media (min-width: 768px) and (max-width: 1024px) { .widget-title { font-size: 15px !important; } }

{{ articles_filter_1561_widget.title }}

{{ item.title }}
.most-popular .layout-ratio{ padding-bottom: 79.13%; } @media (min-width: 768px) and (max-width: 1024px) { .widget-title { font-size: 15px !important; } }

{{ articles_filter_1562_widget.title }}

{{ item.title }}
.most-popular .layout-ratio{ padding-bottom: 79.13%; } @media (min-width: 768px) and (max-width: 1024px) { .widget-title { font-size: 15px !important; } }

{{ articles_filter_1563_widget.title }}

{{ item.title }}

{{ articles_filter_1564_widget.title }}

{{ item.title }}
.mb-article-details { position: relative; } .mb-article-details .article-body-preview, .mb-article-details .article-body-summary{ font-size: 17px; line-height: 30px; font-family: "Libre Caslon Text", serif; color: #000; } .mb-article-details .article-body-preview iframe , .mb-article-details .article-body-summary iframe{ width: 100%; margin: auto; } .read-more-background { background: linear-gradient(180deg, color(display-p3 1.000 1.000 1.000 / 0) 13.75%, color(display-p3 1.000 1.000 1.000 / 0.8) 30.79%, color(display-p3 1.000 1.000 1.000) 72.5%); position: absolute; height: 200px; width: 100%; bottom: 0; display: flex; justify-content: center; align-items: center; padding: 0; } .read-more-background a{ color: #000; } .read-more-btn { padding: 17px 45px; font-family: Inter; font-weight: 700; font-size: 18px; line-height: 16px; text-align: center; vertical-align: middle; border: 1px solid black; background-color: white; } .hidden { display: none; }
function initializeAllSwipers() { // Get all hidden inputs with cms_article_id document.querySelectorAll('[id^="cms_article_id_"]').forEach(function (input) { const cmsArticleId = input.value; const articleSelector = '#article-' + cmsArticleId + ' .body_images'; const swiperElement = document.querySelector(articleSelector); if (swiperElement && !swiperElement.classList.contains('swiper-initialized')) { new Swiper(articleSelector, { loop: true, pagination: false, navigation: { nextEl: '#article-' + cmsArticleId + ' .swiper-button-next', prevEl: '#article-' + cmsArticleId + ' .swiper-button-prev', }, }); } }); } setTimeout(initializeAllSwipers, 3000); const intersectionObserver = new IntersectionObserver( (entries) => { entries.forEach((entry) => { if (entry.isIntersecting) { const newUrl = entry.target.getAttribute("data-url"); if (newUrl) { history.pushState(null, null, newUrl); let article = entry.target; // Extract metadata const author = article.querySelector('.author-section').textContent.replace('By', '').trim(); const section = article.querySelector('.section-info ').textContent.replace(' ', ' '); const title = article.querySelector('.article-title h1').textContent; // Parse URL for Chartbeat path format const parsedUrl = new URL(newUrl, window.location.origin); const cleanUrl = parsedUrl.host + parsedUrl.pathname; // Update Chartbeat configuration if (typeof window._sf_async_config !== 'undefined') { window._sf_async_config.path = cleanUrl; window._sf_async_config.sections = section; window._sf_async_config.authors = author; } // Track virtual page view with Chartbeat if (typeof pSUPERFLY !== 'undefined' && typeof pSUPERFLY.virtualPage === 'function') { try { pSUPERFLY.virtualPage({ path: cleanUrl, title: title, sections: section, authors: author }); } catch (error) { console.error('ping error', error); } } // Optional: Update document title if (title && title !== document.title) { document.title = title; } } } }); }, { threshold: 0.1 } ); function showArticleBody(button) { const article = button.closest("article"); const summary = article.querySelector(".article-body-summary"); const body = article.querySelector(".article-body-preview"); const readMoreSection = article.querySelector(".read-more-background"); // Hide summary and read-more section summary.style.display = "none"; readMoreSection.style.display = "none"; // Show the full article body body.classList.remove("hidden"); } document.addEventListener("DOMContentLoaded", () => { let loadCount = 0; // Track how many times articles are loaded const offset = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]; // Offset values const currentUrl = window.location.pathname.substring(1); let isLoading = false; // Prevent multiple calls if (!currentUrl) { console.log("Current URL is invalid."); return; } const sentinel = document.getElementById("load-more-sentinel"); if (!sentinel) { console.log("Sentinel element not found."); return; } function isSentinelVisible() { const rect = sentinel.getBoundingClientRect(); return ( rect.top < window.innerHeight && rect.bottom >= 0 ); } function onScroll() { if (isLoading) return; if (isSentinelVisible()) { if (loadCount >= offset.length) { console.log("Maximum load attempts reached."); window.removeEventListener("scroll", onScroll); return; } isLoading = true; const currentOffset = offset[loadCount]; window.loadMoreItems().then(() => { let article = document.querySelector('#widget_1690 > div:nth-last-of-type(2) article'); intersectionObserver.observe(article) loadCount++; }).catch(error => { console.error("Error loading more items:", error); }).finally(() => { isLoading = false; }); } } window.addEventListener("scroll", onScroll); });
Join Our Newsletters

Sign up by email to receive news.

© 2025 Manila Bulletin The Nation's Leading Newspaper. All Rights Reserved.