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: 04 May 2017

Monthly Rainfall Forecast
RAINFALL FORECAST  (May - 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, FRIDAY, MAY 26, 2017
VALID UNTIL      :  8AM, SATURDAY, MAY 27, 2017
FWFA:  N0. 17-146


Ten-Day Regional Agri-Weather Information

DEKAD NO. 15 May 21 - 31, 2017

PHILIPPINE AGRI-WEATHER FORECAST

The weather systems that will affect the whole country are frontal system, easterlies, southwest monsoon and intertropical convergence zone (ITCZ).

Throughout the dekadal period, Northern Luzon especially Ilocos Region, CAR, Cagayan Valley will be cloudy with light to moderate rains and isolated thunderstorms. Mindanao will experience cloudy skies with rainshowers and isolated thunderstorms due to enhanced convection brought by ITCZ. While the rest of the country will have fair weather with possible isolated rainshowers or thunderstorms mostly in the evening or afternoon.

Light to moderate winds coming from southeast to east will prevail over Mindanao, Visayas and eastern section of the country and from southwest over western section especially of Northern Luzon.

During the forecast period, the coastal waters throughout the whole country will be 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 May 2017
The month of May marks the occurrence of Eta Aquarid meteor shower...




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Telescoping and stargazing 
The PAGASA Astronomical Observatory is located inside the campus of the University of the Philippines, Diliman, Quezon City, conducts stargazing and telescoping sessions to interested astronomy enthusiasts, upon request. The session can either be conducted at the Observatory or at a specified venue of the requesting party/ individual. Letter of request should reach the Office of the Chief, Space Science and Astronomy Section, at least two weeks earlier than scheduled time, especially those, which will be conducted outside the PAGASA Observatory to allow the processing of necessary documents. The request letter can be addressed to:

Dr. Vicente B. Malano
Acting Administrator, PAGASA
Science Garden
Agham Road, Diliman
Quezon City, Philippines 1100

ATTENTION: Engr. Dario L. dela Cruz
                       Chief, SSAS

During the previous years, the 30-cm reflector-type telescope, which was permanently installed at the Observatory dome, is being used for the telescoping sessions. However, in May 2001, the Japanese Government donated a computer-based 45-cm telescope and was installed at the Observatory. Starting on February 16, 2003, the start of the celebration of the National Astronomy Week, the telescope is open for public use, after a series of adjustments made by the Japanese technicians.

Provided that the sky is clear, visitors can expect to have a glimpse of the famous bright stars like Vega and Sirius during the stargazing session. Planets such as Jupiter, Venus, Saturn, Mercury and Mars, including their satellites and the Moon can also be observed.

For residents of the cities of Davao, Cagayan de Oro, Cebu and Legazpi, stargazing and telescoping sessions can also be conducted at the PAGASA regional centers located in their area. One (1) 25-cm telescope in each of the above-mentioned sites are available for use. These telescopes were procured in May 1998 through the Grant-in-aid (GIA) project of the Department of Science and Technology (DOST), which is entitled "Promotion of Astronomy".

 
Stars and Constellations

As summer approaches, the days get longer in the Philippines. After sunset, the grouping of stars known as Big Dipper is well placed high in the northeastern sky. The North Star Polaris can easily be located under normal weather condition by using the reference or the pointing stars namely Dubhe and Merak. By using their distance, an imaginary line can be drawn downward passing to these two stars and counting five times as shown in Figures 1 & 1a. Polaris actually is the end point star of the handle of the Small Dipper. The curved handle of the Big Dipper is pointing towards a bright orange star Arcturus of the constellation Bootes, the Herdsman.


Figure 1Figure 1
(click thumbnail to view image)
Figure 1aFigure 1a
(click thumbnail to view image)



Meteor Shower

The month of May marks the occurrence of Eta Aquarid meteor shower. The shower occurs each year as a result of the Earth’s passing close to the orbit of Halley’s comet twice a year. The point from where the meteors appear to radiate is located within the constellation Aquarius, the Water Bearer as shown in Figures 2 & 2a. The radiant of the meteor shower will virtually lie on the celestial equator and is more favorable to southern hemisphere viewers. In the Northern Hemisphere, about 20 or more meteors per hour at the pre-dawn sky of May 6 may be seen. It is best to observe only a few hours before dawn.

Figure 2Figure 2
(click thumbnail to view image)
Figure 2aFigure 2a
(click thumbnail to view image)


Planets Whereabouts
 

On May 1 at 4 A.M, Venus and Neptune will be observed at about 10 and 23 degrees above the east southeastern horizon, with magnitudes of -4.53 and +7.93 and will lie among the background stars of the constellations Pisces, the Fish and Aquarius, the Water-Bearer, respectively. Observing Neptune requires a telescope and a starmap under dark and clear sky condition.

Meanwhile, the Ringed planet Saturn will also be observed at about 50 degrees above the south southwestern horizon. It will lie among the background stars of the constellation Sagittarius, the Archer with a magnitude of +0.26. Viewing through a telescope, the Ringed Planet will show its disk and ring at 17.8 and 41.5 seconds of an arc in diameter, respectively. The Saturn system holds more than 60 satellites or moons, of which seven (7) glow brightly enough to show through moderate-aperture telescopes. Saturn’s Titan, the largest and brightest satellite, which shines at magnitude +8.4 can be easily seen through any optical instrument. It orbits Saturn once every 16 days.

An hour before sunrise, Uranus and Mercury returns to view as it emerges from the east northeastern horizon at the beginning of the month. Best time to observe these planets will be on the middle of the month where it will be 8 and 12 degrees above the horizon. Uranus can be observed with the aid of a telescope and binocular under clear sky condition with and a star map.

At around 7:00 P.M., Jupiter will be located 38 degrees above the east southeastern horizon which lie among the background stars of the constellation Virgo, the Virgin. It will be shining at magnitude -2.41. The largest planet in the solar system becomes a good target for astrophotography that will reveal atmospheric features and the four Galilean satellites using a DSLR camera mounted on a modest sized telescope under clear sky condition.

Mars will also be found 13 degrees above the west northwestern horizon, shining at magnitude +1.6 which lie among the stars of the constellations Taurus, the Bull. It will be observable throughout the month but will be a difficult target due to its proximity to the horizon.

Figure 3 shows how to compare apparent magnitudes of celestial bodies such as planets and stars.

Figure 3Figure 3
(click thumbnail to view image)
 


May 2017

DATE EVENT TIME (PST)
2  Mercury stationary 10:00 PM
4  Regulus 0.5° N. of Moon 6:00 PM
8  Jupiter 2° S. of Moon 5:00 AM
8  Mercury stationary 7:00 AM
13  Moon at apogee (farthest distance from Earth = 406,167.613 km) 3:51 AM
22  Venus 2° N. of Moon 9:00 PM
26  Moon at perigee (nearest distance to Earth = 357,315.792 km) 9:21 AM


CYNTHIA P. CELEBRE, Ph. D.
Chief, RDTD

24 April 2017
For more information, call:

ENGR. DARIO L. DELA CRUZ
Chief, Space Sciences and Astronomy Section (SSAS), (RDTD)
PAGASA, DOST
Tel/Fax Nos. 434-27-15

Issue for May 2017
The month of May marks the occurrence of Eta Aquarid meteor shower...

The Philippine Atmospheric, Geophysical and Astronomical Services Administration (PAGASA) is mandated by law, as the government agency tasked to keep and disseminate the Philippine Standard Time (PhST). 

The PAGASA Astronomical Observatory which is located inside the campus of the University of the Philippines, Diliman, Quezon City.  It is equipped with a 45-cm. computer-based telescope donated by the Japanese Government thru its cultural- grant-aid program.  It is the biggest ever acquired by the PAGASA since the establishment of the observatory in 1954 and is now the largest operational telescope in the country.  It is very powerful that astronomers and astronomy enthusiasts may now conduct effective observations of stellar bodies and other distant space objects.

The Planetarium at the Science Garden has an 88-seating capacity.  It offers an ideal setting for all kinds of cosmic educational tours, whose most important task is to give the scientific concept of the Universe to the general public, and to elementary and high school students.  This concept includes the size and content of the observed universe, its creation, history and possible future, the development of the solar system.

The history of astronomy in the Philippines since it started in 1897 will be described.  The development of astronomical resources, activities and education after its hundred years of existence will be emphasized.



The Philippine Atmospheric, Geophysical and Astronomical Services Administration (PAGASA) is mandated by law, as the government agency which is tasked to keep and disseminate the Philippine Standard Time (PhST). Section 6 of Batas Pambansa Blg. 8, defining the metric system in the country, states that: "PAGASA shall be responsible in the establishment, maintenance and operation of the National Standard for the second of time".

Another law is Presidential Decree 1149, assigning PAGASA as the official agency that will handle the dissemination of the Philippine Standard Time (PST). Recently, the Philippine Standard Time Act was created.  Later, its Implementing Rules and Regulations was also created.

Philippine Standard Time widget

Steps in Time Synchronization Using PAGASA NTP Server

Philippine Standard Time Act of 2013 (Republic Act No.10535)
Implementing Rules and Regulations of Republic Act No.10535

Disclaimer: Internet is one of the main modes by which PAGASA disseminates the Philippine Standard Time (PhST). There may be discrepancies with the PhST displayed here as compared to the PAGASA clock; the major causes being the internet transmission delay and the computer workload of the computer you are using. For a more precise clock synchronization, please call (+632) 9291237.


Republic Act 10535
The Philippine Standard Time (PhST)

1.    What is Republic Act No. 10535?

It is "The Philippine Standard Time (PhST) Act of 2013". This law sets the PhST in all official sources throughout the country, provide funds for the installation, and maintenance of synchronized time devices to be displayed in key public places, and to declare the first week of every year as National Time Consciousness Week (NSTW)

The Philippine Standard Time has the acronym PhST to distinguish it from the Pacific Standard Time (PST).

2.    When was it passed into law and who signed it?

It was passed into law last May 15, 2013 and signed by President Benigno S. Aquino III.

3.    What does it aim to promote?

The spirit behind the Philippine Standard Time touches on both technical and cultural aspects. The technical aspects aims to sync all time devices in the country so that its 7, 107 islands will have common time. Meanwhile, the cultural aspect aims to modify the so-called "Filipino time" (later than the scheduled time) attitude and develop the habit of being punctual as a show of respect to other people and to the value of time.

4.    Where can the general public get the PhST?

The PhST is generally sourced from DOST-Philippine Atmospheric, Geophysical and Astronomical Services Administration (PAGASA), the official time keeper of the country. Specifically, the PhST can be accessed from the PAGASA Astronomical Observatory, PAGASA Forecasting Center or the PAGASA ICT group;

Other institutions that can provide the PhST are the following:

- DOST agencies, and regional and provincial offices, including their wbsites;

- All PAGASA Regional and Field Stations;

- Internet, use of Network Time Protocol (NTP) Server System located in PAGASA website;

- Any of the National and Local government offices;

- Government and private television stations, and government and private radio stations;

- Other reliable means that provide accurate PhST.

5.    Who are required to display and comply with the PhST?

The following should display the PhST:

- National government agencies including State Universities and Colleges (SUCs) and Government Owned and Controlled Corporations (GOCCs);

- Local Government Units;

- Government television and rdio stations;

- Private television and radio stations;

- Private corporations/ agencies;

- Peoples's organizations, non-government organizations and civil society groups.

- Airports, seaports, expressways; and government electronic boards and similar establishments.

At least once a month, all of these offices, through their information and communication technology units or the equivalent, shall coordinate with PAGASA's Time Service Unit to synchronize their official timepieaces and devices.

6.    Who is tasked to monitor, maintain and disseminate the PhST?

PAGASA's Time Service Unit, in coordination with the Department of Science and Technology (DOST).

7.    What are the time devicces required to display PhST in acordance with the official time being provided by the PAGASA using its Network Time Protocol (NTP)?

Official time devices, including but limited to:

- bundy clocks

- displayed clocks

- chronomeers

- quartz clocks

Procurement of these time devices is supervised by the DOST, and the required specifications are issued PAGASA.

8.    Where should the PhST displayed?

It should be prominently displayed in areas readily accesible to the general public.

9.    Do all time devices have to be exactly in sync with the PhST?

Time deviation of plus (+) or minus (-) five (5) seconds with the PhST is acceptable.

10.Private television and radio stations are required to display and broadcast the PhST. What if they fail to calibrate and sychronize their time devices?

Broadcast stations that fail to comply with the requirements of PhST will have the following penalty:

*First Offense - Fine of not less than thirty thousand (Php 30, 000.00) pesos but not more that fifty thousand (Php 50, 000.00) pesos.

*Second Offense - Revocation and cancellation of franchise to operate

The collected penalty will be deposited in the general fund of the National Treasury.

11.What if the government employee or officer responsible for the implementation of the PhST fails to calibrate and synchronize the devices with PhST?

The employee or officer shall be administratively liable without prejudice to any civil or criminal liability that maybe appropriately imposed.

12.How will the PhST be promoted to Filipinos?

To promote awareness on the Philippine Standard Time, the government institutionalized the "National Time Consciouseness Week" to be celebrated yearly every first week of January.

PAGASA and the Science and Technology Information Institute (STII) of the DOST, in collaboration with government agencies, shall organize activities for the observance of the National Time Consciouseness Week (NSTW). Government agencies through the CSC shall be encouraged to issue the necessary guidelines to all government offices to follow the PhST.

In the celebration week, the pubic is likewise required to participate and cooperate in the activities, and encouraged to practice and promote a culture of punctuality and wise time management.


For more details about synchronizing clocks with the PhST, please call the PAGASA Time Service Unit at (+632) 9291237



meteopilippinas

PUBLIC WARNING 


It has come to the attention of the Office of the Administrator of PAGASA that a certain person has been using the name of Dr. Vicente B. Malano to solicit money from the contractors of PAGASA.

Dr. Malano wishes to inform the public that he has not authorized anyone to solicit money on his behalf and to warn everyone against dealing with unscrupulous activities of certain individuals.



payong pagasa on android The latest version of the official PAGASA app can now be downloaded on Google play store

Weather Division is now  ISO 9001:2008 Certified
Proof has been furnished by means of an audit that the requirements of ISO 9001:2008 are met.

Read more ...


PRESS RELEASE
24 May 2017

START OF SOUTHWEST MONSOON

Southwesterly windflow has been dominant over the West Philippine Sea for several days now. This is due to the formation of semi-permanent trough over Northern Luzon-Taiwan area and the eastward migration of the North Pacific High Pressure Area which are the prominent indicators of the southwest monsoon onset in the country. 

Likewise, the prevailing weather condition in most parts of Luzon and Visayas particularly the western section is now warm and humid as characterized by occasional to frequent occurrences of afternoon-evening or early morning rainshowers and thunderstorms. These developments signify the approaching onset of rainy season under Type 1 climate covering the western parts of Luzon and Visayas.


Read more ...
DOST-PAGASA S&T Release

17 May 2017

To further strengthen its weather forecasting capabilities, the Philippine Atmospheric, Geophysical, and Astronomical Services Administration (PAGASA), in partnership with the Korea International Cooperation Agency (KOICA), inaugurates the new Communication, Ocean and Meteorological Satellite (COMS) Data Analysis System at the PAGASA Weather and Flood Forecasting Center in Quezon City.


Read more ...