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


ENSO Weekly Monitoring: La Nina Watch continues.. 
16 September 2016
updates shall be issued as appropriate.


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, MONDAY, APRIL 24, 2017
VALID UNTIL      :  8AM, TUESDAY, APRIL 25, 2017
FWFA:  N0. 17-114


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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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

At around 7:30 PM, the seven stars that make up the Big Dipper and one of the most familiar pattern in the sky will be located in the northern hemisphere
as shown in Figures 2 & 2a. The curved handle of the Big Dipper is pointing towards a bright orange star, Arcturus of the constellation Bootes, the Herdsman. Due south will be another bright star, Spica, the prominent star of the constellation Virgo, the Virgin. Figure 3 shows how to locate these bright stars.

The Beehive Cluster, also known as Praesepe (Latin word for “manger”), M44, NGC 2632 or Cr 189, in the constellation Cancer, the Crab spans more than a degree of the sky as shown in Figures 4 & 4a. It is an Open Type cluster of stars in which ten of its stars shine between magnitude +6.3 to +6.9. The Beehive is one of the nearest open clusters of stars in the Solar System. Under cloudless and dark sky condition, it looks like a nebulous object to the naked eye, thus it has been known since ancient times. Ptolemy, a classical Greek astronomer called it “the nebulous mass in the breast of Cancer,” and it was the first object that Galileo studied with his telescope. The Beehive Cluster is a good target for an observer using a binocular with the aid of a star map.

Figure 2Figure 2
(click thumbnail to view image)
Figure 2aFigure 2a
(click thumbnail to view image)
Figure 3Figure 3
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Figure 4Figure 4
(click thumbnail to view image)
Figure 4aFigure 4a
(click thumbnail to view image)



Meteor Shower

The Lyrids meteor shower has been observed for more than 2,600 years. The said meteor shower is formed by bits of debris left behind by the repeat passages through the inner solar system of comet Thatcher (C/1861 G1). Chinese records show that "stars fell like rain" during the meteor shower of 687 B.C. However, in recent times, the Lyrids have generally been weak. The shower typically generates a dozen meteors per hour under optimal conditions with a brief maximum that lasts for less than a day. The shower’s peak this year will be in progress on April 22 to predawn of April 23. Although not numerous, Lyrids are bright and fast meteors. Figures 1 & 1a show the position of the radiant of the meteor shower at the constellation Lyra, the Lyre, on April 22 at around 11:45 PM.

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


Planets Whereabouts
 

On April 1, 2017
At 1:00 A.M. .....
Saturn will be found at about 19 degrees above the east southeastern horizon and will shine at magnitude +0.42 and will lie among the background stars of the constellation Sagittarius, the Archer. The Ringed planet rises earlier each day with increasing magnitude from +0.42 to +0.26 during the month. By using a telescope or a binocular, its ring system will be easily seen, spanning at around 40 seconds of an arc under clear and dark night sky.

Jupiter will be observed overhead as it shines brightly at magnitude -2.46 and lies among the stars of the constellation Virgo, the Virgin. By using a modest-sized telescope under clear and dark night, the four (4) Galilean satellites and the cloud bands surface features will be observed. Jupiter and Saturn will be observable in the early morning sky throughout the month.

At 5:00 A.M.

Venus emerges from the eastern sky and continues to gain altitude daily before sunrise during the month. It is best to observe this planet on the second week until the end of the month as it gains high enough position in the horizon. It will be shining glamorously at magnitude -4.53 and will lie among the stars of the constellation Pisces, the Fish.

Neptune observation will be needing an updated star map and a modest-sized telescope to be able to see its bluish body. A very faint magnitude of about +7.96 makes it difficult to locate, but its color will determine the position of the planet. It will be found among the background stars of the constellation Aquarius, the Water-Bearer.

At 6:40 P.M. .....

Mercury, the innermost planet, will be found standing at about 10 degrees above the west northwestern horizon glowing at magnitude +0.83. It will be observable from the beginning until the middle week of the month as it dips down the horizon as days pass by.

Mars, the Red planet, will be found among the background stars of the constellation Aries, the Ram and traverses daily from the sky until it dwells to the constellation of Taurus, the Bull on the middle of the month. It glows at magnitude +1.47 and will be located at about 25 degrees above the horizon.

Uranus is out for observation during the month due to its proximity to the Sun.

 

April 2017

DATE EVENT TIME (PST)
1 Mercury greatest elongation E. (19°) 6:00 PM
8 Jupiter at opposition 6:00 AM
11 Jupiter 2° S. of Moon 5:00 AM
15 Moon at apogee (farthest distance from Earth = 405,418.286 km) 6:05 PM
20 Mercury in inferior conjunction 2:00 PM
24 Venus 5° N. of Moon 2:00 AM
25 Pallas 0.8° S. of Moon 12:00 AM
28 Moon at perigee (nearest distance to Earth = 359,424.472 km) 12:15 AM
29 Aldebaran 0.5° S. of Moon (occn.) 2:00 AM


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

29 March 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 April 2017
Lyrids Meteor, Jupiter, Saturn will be found at about 19 degrees above the east southeastern horizon and...

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




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.

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PAGASA S&T RELEASE
PRESS STATEMENT
10 April 2017
               
SPECIAL WEATHER OUTLOOK FOR THE LENTEN SEASON


Starting today (April 10) until Maundy Thursday (April 13), warm and dry weather conditions associated with sunny weather will prevail over the entire archipelago, with chances of some isolated rainshowers or thunderstorms due to the Ridge of High Pressure Area (HPA) and Easterlies.

Read more ...
PAGASA S&T Release
PRESS STATEMENT
05 April 2017


TERMINATION OF THE NORTHEAST MONSOON

The resurgence of the Northeast Monsoon that affected the Northern and Central Luzon during the last few days has weakened.  Latest weather map analyses and numerical model outputs indicate
Read more ...