PAGASA Weather Forecast: September 20, 2024

The Philippine Atmospheric, Geophysical, and Astronomical Services Administration (PAGASA) has released its weather forecast for September 20, 2024. The forecast highlights a low-pressure area (LPA) and the ongoing effects of the Southwest Monsoon (Habagat) across various parts of the country.

At 5:00 AM, the LPA was located 745 km east-southeast of Itbayat, Batanes, near coordinates 19.3°N and 128.8°E. The Southwest Monsoon continues to affect Luzon and Visayas, bringing varying levels of rainfall across these regions. Here are the detailed weather conditions for different areas:

Forecast Weather Conditions

Zambales and Bataan

Weather Condition: Monsoon rains
Caused By: Southwest Monsoon
Impacts: Residents should be prepared for possible floods or landslides due to moderate to heavy rains. The risk of flooding in low-lying areas and landslides in elevated regions remains high.

Ilocos Region

Weather Condition: Occasional rains
Caused By: Southwest Monsoon
Impacts: Occasional rains are expected, with possible flash floods or landslides in areas prone to heavy rainfall.

Metro Manila, Northern Samar, Eastern Samar, Samar, and the rest of Luzon

Weather Condition: Cloudy skies with scattered rains and thunderstorms
Caused By: Southwest Monsoon
Impacts: These areas are likely to experience scattered rain showers and thunderstorms, which may result in flash floods or landslides during periods of heavy rain.

Rest of Visayas

Weather Condition: Partly cloudy to cloudy skies with isolated rain showers or thunderstorms
Caused By: Southwest Monsoon
Impacts: Isolated thunderstorms could bring flash floods or landslides, particularly during severe thunderstorms.

Mindanao

Weather Condition: Partly cloudy to cloudy skies with isolated rain showers or thunderstorms
Caused By: Localized thunderstorms
Impacts: Mindanao is expected to have fairer weather, but isolated thunderstorms may still occur, leading to the possibility of flash floods or landslides in affected areas.

Forecast Wind and Coastal Water Conditions

Western section of Luzon:

Wind Speed: Moderate to strong
Wind Direction: Southwest to south
Coastal Waters: Moderate to rough seas, with wave heights reaching 2.5 to 3.4 meters. Caution is advised for small sea vessels.

Rest of the country:

Wind Speed: Light to moderate
Wind Direction: Southeast to southwest
Coastal Waters: Light to moderate seas, with wave heights ranging from 0.6 to 2.5 meters.

Rainfall and Heavy Rainfall Advisories

Heavy Rainfall Warning No. 5 (#NCR_PRSD)

Issued at: 5:00 AM, September 20, 2024
Weather System: Enhanced Southwest Monsoon (Habagat)
Areas Under Yellow Warning Level: Zambales and Tarlac
- Hazard: Flooding in flood-prone areas

Additionally, light to moderate with occasional heavy rains are expected over Cavite, Batangas, Bulacan, Nueva Ecija, Bataan, Pampanga, and parts of Metro Manila (Caloocan, Malabon, Valenzuela, Navotas, Quezon City), as well as Rizal (Rodriguez). This weather is forecasted to persist within the next three hours.

Rainfall Advisory No. 13 (#VIS_PRSD)

Weather System: Southwest Monsoon
Areas Affected: Occidental Mindoro (Lubang, Looc, Sablayan, Calintaan, Rizal, San Jose, Magsaysay); Palawan (Puerto Princesa City, Roxas, Dumaran, Araceli, San Vicente, Aborlan, Quezon, Narra, Rizal, Brooke’s Point, Sofronio Española, Bataraza, Balabac, Magsaysay, Cuyo, Agutaya, Taytay).
- Rains Expected: Light to moderate with occasional heavy rains (2.5-15 liters per square meter per hour) that may continue for 2 to 3 hours.

Heavy Rainfall Warning No. 14 (#VIS_PRSD)

Issued at: 5:00 AM, September 20, 2024
Area Under Yellow Warning Level: Palawan (Kalayaan Islands)
- Hazard: Flooding in low-lying areas and possible landslides in mountainous areas.