Gale Warning
Issued at: ,
Gale Warning #

Gale Warning in PDF file

General Flood Advisories - Regional
 General Flood Advisory issued as of 7 PM, 20 August 2018


Monthly Climate Assessment and Outlook (July-August 2018)

Issued: 06 August 2018

Monthly Rainfall Forecast
RAINFALL FORECAST  (September 2018 - February 2019) 
UPDATED: 29 August 2018 (next update September 26, 2018)

Regional Rainfall Forecast
Issued: 29 August 2018
Valid for: September 2018 - February 2019
Farm Weather Forecast and Advisories
ISSUED: 8 AM,  FRIDAY,  MAY 24, 2019
, 2019
FWFA:  N0. 19-144

Ten-Day Regional Agri-Weather Information
DEKAD NO. 15   MAY 21 - 31, 2019
The weather systems that will affect the whole country are the frontal system, easterlies, ridge of high pressure area, intertropical convergence zone (ITCZ) and low pressure area (LPA).

Seasonal Climate Outlook
Issued:  13 July 2018
FOR July - December 2018

Astronomical Diary
Issue for October 2018
The October Orionids meteor shower will be active from October 17-25, 2017.

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Cipriano C. Ferraris

This is a study of rainfall and flood parameters for the period 1946 to 1966 over the Pampanga River Basin to find relationships between rainfall amount and flood height, weather systems and flood occurrence, flood magnitude and frequency of recurrence and between maximum flood flow and drainage area. Also analyzed are the annual variation of peak flood stages.

Aida M. Jose

Statistical parameters of Manila rainfall data are computed and examined using 105 years of record (1865-1969). Variability of the rainfall is high and the distribution is positively skewed. It is shown also that long periods of Manila rainfall records are necessary to stabilize the values of mean and standard deviations for both dry and wet months. Analysis of the variation of 5-term binomially weighted averages of twelve months rainfall indicates long period oscillations of 33 to 43 years irregular shorter period oscillations of 5 to 11 years.

Mariano T. Asuncion

Different techniques for estimating potential evapotranspiration or evaporation plus actual evapotranspiration have been reviewed and some were tested using readily available meteorological and astronomical data at the College Weather Station, University of the Philippines, College of Agriculture, Los Baños, Laguna. Experimental evidence lends the most support to the Penman formula as the best empirical method for calculating potential evapotranspiration which has also has a more sound physical basis than most others.