[i] Understanding the 24-Hour Rainfall Forecast
The 24-Hour Rainfall Forecast provides critical information about expected precipitation accumulation over the next 24 hours across Philippine provinces. This forecast is essential for disaster preparedness, agricultural planning, and public safety.
[r] Why This Forecast Matters in the Philippines
The Philippines, being an archipelagic nation located in the Western Pacific, is highly vulnerable to various weather hazards. The country experiences an average of 20 tropical cyclones annually, with about 8-9 making landfall. Understanding 24-hour rainfall forecasts is crucial because:
- Flood Prevention: The Philippines faces frequent flooding due to heavy rainfall, especially in urbanized and low-lying areas. A 24-hour forecast helps communities prepare and evacuate if necessary.
- Landslide Risk Assessment: Prolonged or intense rainfall can trigger landslides in mountainous and highly susceptible areas, particularly in regions like Benguet, Southern Leyte, and parts of Mindanao.
- Agricultural Planning: Farmers rely on rainfall forecasts to schedule planting, harvesting, and protect crops from potential flood damage.
- Disaster Response Coordination: Local government units (LGUs) and disaster risk reduction management offices use these forecasts to preposition resources and personnel.
- Public Safety: Communities in flood-prone and landslide-prone areas can take early action to protect lives and property.
[m] PAGASA Rainfall Classification Standards
This forecast uses the PAGASA (Philippine Atmospheric, Geophysical and Astronomical Services Administration) 24-hour rainfall accumulation standards:
| Category | Rainfall Amount | Potential Impact |
|---|---|---|
| Light Rainfall | < 50 mm | Localized flooding is possible but generally manageable |
| Moderate to Heavy | 50 - 100 mm | Localized flooding possible in urbanized, low-lying or near rivers areas. Landslides possible in highly susceptible areas |
| Heavy Rainfall | 100 - 200 mm | Numerous flooding events likely, especially in urbanized, low-lying or near rivers areas. Landslides likely in moderate to highly susceptible areas |
| Torrential Rainfall | > 200 mm | Widespread incidents of severe flooding and landslides expected. Immediate evacuation may be necessary |
[s] Data Sources and Models
This forecast utilizes multiple global numerical weather prediction models:
- ECMWF IFS (European Centre for Medium-Range Weather Forecasts): Considered one of the most accurate global weather models, providing high-resolution forecasts with advanced data assimilation techniques.
- GFS (Global Forecast System): The primary weather forecast model from NOAA/NCEP, widely used for global weather prediction.
- JMA (Japan Meteorological Agency): Provides high-quality forecasts particularly relevant for the Western Pacific region, including the Philippines.
[!] Important Disclaimer
Disclaimer: This 24-hour rainfall forecast is provided for general informational and planning purposes only. While the data is sourced from reputable global weather models and processed using PAGASA standards, it should not be considered as official PAGASA weather advisories or warnings.
For official weather forecasts, warnings, and advisories: Always refer to the Philippine Atmospheric, Geophysical and Astronomical Services Administration (PAGASA) through their official channels at www.pagasa.dost.gov.ph or follow their official social media accounts for real-time updates.
Limitations: Weather forecasting involves inherent uncertainties. Actual rainfall amounts may vary significantly from forecasted values due to the complex nature of atmospheric conditions. Forecast accuracy may decrease with longer lead times, and localized weather phenomena (such as thunderstorms) may not be fully captured by global models.
No Warranty: This forecast is provided "as is" without any warranties, express or implied. The developers and data providers assume no responsibility for any decisions made or actions taken based on this information. Users are strongly advised to consult multiple sources and official authorities before making critical decisions.
Data Update Frequency: Forecast data is updated periodically through automated systems. Cache auto-expires after 6 hours to ensure relatively fresh data, though actual model update frequencies may vary by source.
Last updated: This forecast system is continuously maintained and updated. For the most current information, please refresh the page or select different weather models from the dropdown menu. In case of severe weather conditions, prioritize official warnings from PAGASA and local disaster management authorities. Remember: When in doubt, always prioritize safety and follow instructions from official authorities.
Rainfall data courtesy of MULTI-AGENCY API and multiple global weather prediction centers. Script by PIMOHWEATHER Philippines. For emergency situations, contact your local Disaster Risk Reduction and Management Office (DRRMO) or dial emergency hotlines.
24-Hour Rainfall Forecast (courtesy of multi agencies)