The Philippines is currently experiencing varied weather conditions influenced by multiple atmospheric systems, notably the shear line, northeast monsoon (Amihan), and easterlies. These systems are bringing a mix of cloudy skies, scattered rains, and isolated thunderstorms across different regions.
Shear Line and Northeast Monsoon Impacting Luzon
The shear line, an area where the cold northeast monsoon converges with warmer easterlies, is affecting Northern Luzon and the eastern sections of Central Luzon. This interaction results in cloud formations and precipitation. Simultaneously, the northeast monsoon is influencing extreme Northern Luzon, bringing cooler and drier air masses.
The Philippine Atmospheric, Geophysical and Astronomical Services Administration (PAGASA) has issued forecasts indicating that regions such as the Cordillera Administrative Region, mainland Cagayan, Isabela, Nueva Vizcaya, Quirino, Aurora, Quezon, Camarines Norte, Camarines Sur, Catanduanes, and Albay are expected to experience cloudy skies with scattered rains and isolated thunderstorms due to the shear line. Residents in these areas should remain vigilant for possible flash floods or landslides resulting from moderate to occasionally heavy rains.
In contrast, Batanes and the Babuyan Islands, under the influence of the northeast monsoon, will have partly cloudy to cloudy skies with isolated light rains, with no significant impact anticipated.
Easterlies Affecting Other Regions
The easterlies, characterized by warm and humid air from the Pacific Ocean, are affecting parts of Mindanao and the Visayas. Regions including Caraga, Davao Region, Northern Mindanao, SOCCSKSARGEN, Eastern Samar, Leyte, and Southern Leyte can expect cloudy skies with scattered rains and thunderstorms. These conditions may lead to flash floods or landslides, especially during periods of moderate to heavy rainfall.
General Conditions Across the Country
Metro Manila and the rest of the country are forecasted to experience partly cloudy to cloudy skies with isolated rain showers or thunderstorms, primarily due to the easterlies. While these conditions are generally typical, there remains a risk of flash floods or landslides during severe thunderstorms.
Wind and Coastal Water Conditions
PAGASA has also provided updates on wind and coastal water conditions:
- Extreme Northern Luzon and the eastern section of Luzon: Moderate to strong winds from the northeast to east, with moderate to rough coastal waters (wave heights between 2.1 to 3.1 meters).
- Rest of the country: Light to moderate winds from the northeast, with slight to moderate coastal waters (wave heights between 0.6 to 2.5 meters).
These conditions are essential for mariners and those engaging in coastal activities to consider.
Advisories and Precautions
Given the current weather systems, residents in affected areas are advised to:
- Stay updated with the latest weather bulletins from PAGASA and local authorities.
- Exercise caution in areas prone to flooding and landslides, especially during periods of heavy rainfall.
- Secure properties and be prepared for sudden weather changes, particularly in regions experiencing thunderstorms.
By remaining informed and prepared, communities can mitigate the adverse effects of these weather conditions and ensure safety.