Gale Warning
Issued at: 5:00 PM TODAY , 05 April 2017
Gale Warning # 10 (Final)
For:

Gale Warning in PDF file





Monthly Climate Assessment and Outlook

Issued: 07 April 2017

Monthly Rainfall Forecast
RAINFALL FORECAST  (April - September 2017) 
UPDATED: 05 April 2017 (next update 26 May 2017)


Regional Rainfall Forecast
Issued: 05 April 2017
Valid for: April-September 2017
Farm Weather Forecast and Advisories
ISSUED              :  8AM, THURSDAY, APRIL 27, 2017
VALID UNTIL      :  8AM, FRIDAY, APRIL 27, 2017
FWFA:  N0. 17-117


Ten-Day Regional Agri-Weather Information

DEKAD NO. 12 April 21 - 30, 2017

PHILIPPINE AGRI-WEATHER FORECAST

      The weather systems that are expected to affect the whole country within the ten-day period are ridge of high pressure area, easterlies and low pressure area.

Partly cloudy to cloudy skies with isolated rainshowers and thunderstorms mostly in the afternoon or evening are expected over the whole country during the early and the middle days of the forecast period. On the latter part of the period, a possible low pressure area will affect the eastern section of Visayas and Mindanao which will bring cloudy skies with light to moderate rains. The rest of the country will have partly cloudy to cloudy with isolated rainshowers and thunderstorms mostly in the afternoon or evening.

Winds blowing from the southeast to south will prevail over Luzon and Visayas and coming from the east to northeast over Mindanao. The whole archipelago will have slight to moderate seas during the early and middle days of the dekadal period. On the latter part of the dekad the seaboards of Northern Luzon, eastern Visayas and Mindanao will have moderate to occasionally rough seas while the rest of the country will have slight to moderate seas.

            The eastern and central equatorial Pacific is in neutral condition.


Seasonal Climate Outlook
Issued:  20 January 2017
FOR January - June 2017
PDF 




Astronomical Diary
Issue for April 2017
Lyrids Meteor, Jupiter, Saturn will be found at about 19 degrees above the east southeastern horizon and...




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Engineering and Technical Services

ETSD

Automatic Weather Station (AWS)

               
 IMG 1435    IMG 1551

These automated stations have built in weather instruments with electronic sensors for measuring surface level air temperature pressure, solar radiation, rainfall, wind velocity and other weather parameters. The stations have integrated data banks for storage of recorder data for later retrieval. (please click here for location)

Automatic Rain Gauges


GEDC0282      GEDC0264
Automatic Rain Gauges is intended catch rainfall through a tipping bucket mechanism which gauge and registered water content and automatically sends the data to PAGASA’s database via wireless network. (please click for location)

 

 Automatic Aviation Weather Observation System (AWOS)

awos fnl2    awos fnl
The AWOS helps pilots and aviation personnel make critical decisions by providing continuous, real time information and reports on airport weather conditions.

     

Radio Detection and Ranging (RADAR)

  IMG 01171     IMG 01421

A weather surveillance radar (WSR) is useful in locating precipitation and estimate its intensity and in determining the center of tropical cyclones. In addition to this capability, state- of- the-art Doppler radars are capable of estimating radial velocity which can be used to determine the wind strength of tropical cyclones as well as to analyse its structure.

Upper air observations 

  upper-air1      upper-air31  

Upper air observations are essential inputs in numerical weather prediction models since they provide a vertical profile of the atmosphere. Direct in-site measurements of air temperature, humidity and pressure with height are measured with balloon-borne instrument platform with radio transmitting capabilities called radiosonde, typically to altitudes of approximately 30 km. These data are crucial in the forecast for severe weather and for aviation route forecasts. The upper-air measurements are transmitted to a ground receiving station.