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Weather Today – November 23, 2017 Fair weather prevails

The Northeast Monsoon, or cold and dry air from Siberia is still affecting Extreme Northern Luzon where it brings lights rains. The rest of the country will experience humid weather due to the Easterlies, warm and humid air from the Pacific Ocean.

Today, Batanes and the Babuyan Group of Islands will have cloudy skies with light rains. In the Ilocos Region, Cordillera Administrative Region and the rest of Cagayan Valley, partly cloudy to cloudy skies will prevail with isolated light rains. For the rest of the country, generally fair weather will be experienced only with isolated rain showers mostly in the afternoon or evening.

Rough to very rough conditions are expected off the northern, eastern and western seaboards of Northern Luzon where wave height may reach up to 3.4 to 4.5 meters. Fishing boats and other small seacraft are advised not to venture out while larger sea vessels are alerted against big waves in Batanes, Calayan, Babuyan, the northern coast of Cagayan, Ilocos Norte, Ilocos Sur, La Union, Pangasinan, Isabela and the eastern coast of Cagayan.

La Niña Looms
Based on PAGASA’s 96th Climate Outlook Forum held yesterday, the La Niña Watch is still in effect.
La Nińa is characterized by unusually cool ocean surface temperatures in the Central and Eastern Equatorial Pacific (CEEP).

Since September 2017, cold ocean conditions persisted, indicating that La Niña is developing. According to PAGASA, the La Niña Advisory or the actual Weak La Niña phenomenon may begin next month, but is not expected to last beyond March 2018. During this event, above-normal rainfall in different parts of the country may occur. Impacts also include slightly warmer air temperatures, though the Amihan may bring surges of cold temperatures in the northern and eastern parts of Luzon.

The country may also experience a higher chance of tropical cyclone occurrences that may bring much rainfall during the remaining days of 2017 until the first quarter of 2018.