Northern Luzon PRSD
ARB2
 
              The Agno River has a drainage area of 5,809.3 sq km.  at the BaƱaga station and is the third largest river in Luzon Island next to the Cagayan  and Pampanga rivers. A half of its drainage  area particularly the watershed in Benguet Province is mountainous having an average elevation  of about 2,000 m above MSL. The main branch is the Tarlac River with drainage areas of about 1,900 sq km including Poponto swamp and which joins the Agno River in midstream from the left at Bayambang Pangasinan. The Tarlac River has its source in Mt. Pinatubo in Tarlac province. The Agno river has a course of about 200 km, 90 km of which runs in mountainous areas. The Agno River, after passing through the mountainous areas, forms a vast alluvial  fan and a delta, and then flows  into Lingayen Gulf. This fan and delta comprises the Pangasinan Plain. Poponto swamp is located in the vicinity of Bayambang, Pangasinan where Tarlac River joins the Agno River, the swamp temporarily retains flood water from the Tarlac  River. Dagupan and Sta. Barbara form the center of the Pangasinan Plain, which was formed as a result of floods from the Agno River. Changes on river course as well as river improvements led to the separation of the Agno River from the plain.
 
           The climate in Agno River Basin is characterized by two pronounced seasons, dry from November to April and wet  for the rest of the year. In drainage area the dry season is from November to April and the wet season from May to October Annual precipitation varies from 2,000mm in the neighborhood of Tarlac to 4,000mm in th upper stream of the Agno river, such great variation is caused by the influence of mountains on precipitation produced by monsoons.

Issued at: 7:00 PM 22 February 2017



Forecast:

Bahagyang maulap hanggang sa maulap na kalangitan na may pulu-pulong mga pag-ulan o pagkidlat-pagkulog ang mararanasan sa mga lalawigan ng Batanes, Cagayan, Isabela, Nueva Vizcaya, Quirino, Benguet, Kalinga, Mt. Province, Ifugao, Apayao, Abra, Ilocos Norte, Ilocos Sur, La Union, Pangasinan at Aurora. Mahina hanggang sa katamtamang hangin mula sa silangan hanggang sa timog-silangan ang iiral sa Hilagang Luzon at sa lalawigan ng Aurora na may banayad hanggang sa katamtamang pag-alon ng karagatan.


Rainfall Warning
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Tuguegarao
22 Feb Wed
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