Gale Warning
As of today, there is no Gale Warning issued.


Weather Advisory
As of today, there is no weather Advisory issued



Dams Water Level Update
As of 6 AM, 23 June 2017

General Flood Advisories - Regional
Issued as of 7AM, 23 June 2017




Monthly Climate Assessment and Outlook

Issued: 05 June 2017

Monthly Rainfall Forecast
RAINFALL FORECAST  (June-November2017) 
UPDATED: 31 May 2017 (next update 29 June 2017)


Regional Rainfall Forecast
Issued: 31 May 2017
Valid for: June-November 2017
Farm Weather Forecast and Advisories
ISSUED              : 8AM, FRIDAY, JUNE 23, 2017
VALID UNTIL      :  8AM, SATURDAY, JUNE 24, 2017
FWFA:  N0. 17-175


Ten-Day Regional Agri-Weather Information

DEKAD NO. 18 June 21-30, 2017

PHILIPPINE AGRI-WEATHER FORECAST
The weather systems that will affect the whole country are ridge of high pressure area (HPA), intertropical convergence zone (ITCZ), southwest monsoon and low pressure area (LPA) with chances of becoming tropical cyclone.

During the early days of the forecast period, the whole country will have good weather with possible occurrences of isolated rainshowers or thunderstorms. Afterwards, Eastern Visayas, Northern Mindanao, CARAGA, Davao and SOCCSKSARGEN will have cloudiness with rainshowers and thunderstorms. During the latter days of the dekad, the possible occurrence of LPA will convey cloudiness over Luzon with rainshowers or thunderstorms while the rest of the country will have partly cloudy to cloudy skies with rainshowers or thunderstorms.

During the early days of the dekad, light to moderate winds from southwest to south will blow over Palawan while the rest of the country will have light to moderate winds from southeast to south. Afterwards, Visayas and Mindanao will have light to moderate winds from southeast to south. The rest of the country will have southwesterly windflow. During the latter days, winds coming from east to southeast will prevail over Luzon while the rest of the country will have winds from southeast to south.

The coastal waters throughout the whole country will be slight to moderate. However, during the latter days of the forecast period, the seaboards of Luzon is expected to be moderate to rough while the rest of the country will have slight to moderate seas.

  The eastern and central equatorial Pacific is in neutral condition.

FARM ADVISORIES

In order to attain potential rice production, farmers are reminded to choose the right variety for their field, it should be adapted to local conditions, high yielding and of desired maturity, resistant to major pests and soil problems, of good eating quality, should be of high quality seeds preferably certified seeds and raise the seeds into healthy and vigorous seedlings.

It is recommended to choose seedbed site that is near a water source, disease-free, and far from streetlights. Apply or incorporate organic matter into the soil to make it light and porous and facilitate seedling pulling.

 

 dek18 upload
 

REGIONAL AGROMETEOROLOGICAL SITUATION AND PROGNOSIS

 

REGIONS

Forecast

Rainfall

(mm)

 

Ave. Rainy Days (0.1mm or more)

Actual Soil Moisture Condition

Ave. Range

Of Relative Humidity

(%)

 

Ave.Min- Max Tempera-ture (0C)

 

Crop Phenology, Situation and Farm Activities

 

REGION 1

Ilocos Region

25 – 150

3 – 6

Wet – Pangasinan;

Moist- rest of the region

45 – 98

25 – 33

Land preparation for palay in some areas has started. Harvesting of eggplant, red onions, ginger, squash, upo, tomatoes, and string beans is on-going. Irrigated rice is in vegetative and flowering stages.

 

REGION 2 Cagayan Valley

 

0 – 75

2 – 6

Moist – Batanes;

Dry – rest of the region

50 – 98

24 – 36

Planting and transplanting in irrigated areas are on-going. Harvesting of squash, ginger, eggplant, red onions, upo, tomatoes, string beans, patola and leafy vegetables is on-going. Irrigated rice is in vegetative and flowering stages.

 

C A R (Cordillera Administra-tive Region)

0 – 75

2 – 6

Moist

60 – 98

16 – 25

Land preparation and transplanting of vegetable seedlings are on-going. Upland rice is in vegetative stage. Harvesting of lettuce, broccoli, bell pepper, carrots, celery and cucumber are also on-going.

 

REGION 3

Central Luzon

25 – 150

3 – 6

Wet – Aurora, Zambales;

Moist – Nueva Ecija;

Dry – rest of the region

45 – 95

25 – 34

Planting and transplanting of rice in most irrigated and non-irrigated fields are in progress. Harvesting of string beans, mongo, soybean, squash, bitter gourd, okra, patola, mangoes and eggplant is on-going. Irrigated rice is in vegetative and flowering stages.

 

N C R

National Capital Region

25 – 75

2 – 6

Moist

45 – 90

25 – 34

Vegetable garden plots preparation, transplanting and planting of vegetable seedlings are in progress while harvesting of lettuce, string beans, pechay, alugbati, kutchai, and okra is on-going.

 

REGION 4A CALABAR-ZON

 

0 –50

1 – 4

Wet – Quezon;

Moist – rest of the region

45 – 90

21 – 35

Land and seedbed preparation, planting and transplanting of irrigated rice are in progress. Coffee crop is in flowering stage. Planting of pineapple and rootcrops is on-going. Harvesting of mangoes, pineapple, melon, banana, and watermelon is on-going.

 

REGION 4B MIMAROPA

 

25 – 150

3 – 6

Wet – Calapan;

Moist –

rest of the region

60 – 98

25 – 33

Land preparation, planting and transplanting of irrigated rice are on-going. Irrigated and rainfed rice are in vegetative and flowering stages. Harvesting of cashew, squash, banana, gabi, sweet potato, cassava, melon and watermelon is also on-going.

 

REGION 5

Bicol Region

0 – 75

2 – 6

Moist – Camarines Norte, Albay and Catanduanes;

Dry – rest of the region

45 – 90

25 – 33

Land and seedbed preparation, planting and transplanting of irrigated rice are in progress. Some rice are in vegetative and flowering stages. Harvesting of potatoes, patola, upo, seguidillas and tomatoes is in progress while planting of squash, sweet potato, ginger eggplant and talinum is on-going.

 

REGION 6

Western Visayas

50 – 150

2 – 6

Moist

60 – 98

26 – 33

Upland corn is in vegetative stage while some irrigated and rainfed rice are in flowering and vegetative stages. Land preparation and direct seeding in irrigated and rainfed fields are on-going.

 

Negros Island Region

(NIR)

25 – 150

2 – 6

Dry

45 – 90

26 – 33

Harvesting, threshing, mechanical drying, and land preparation activities are in progress. Irrigated and rainfed rice are in vegetative and flowering stages. Fertilizer application on sugarcane is on-going.

 

REGION 7

Central Visayas

25 – 75

1 – 4

Dry

60 – 90

25 – 33

Irrigated rice is in vegetative and flowering stages. Harvesting of pechay, cabbage, chayote and squash is on-going. Land preparation, planting and transplanting for irrigated rice and corn are in progress.

 

REGION 8

Eastern Visayas

25 – 150

3 – 7

Wet – Borongan, Catbalogan, Tacloban, Guiuan;

Moist – rest of Samar, Maasin

55 – 95

25 – 33

Land and seedbed preparation, planting and transplanting of irrigated and rainfed rice are in progress. Some rice are in vegetative and flowering stages. Harvesting of corn is on-going as well as planting of celery, cabbage, mustard, okra, mongo and soybean is on-going.

 

REGION 9

Zamboanga Peninsula

25 – 150

2 – 6

Moist – Zamboanga del Norte;

Dry – rest of the country

60 – 90

24 – 33

Planting of corn, peanuts, spinach, pechay, lettuce, and upo is in progress. Harvesting of eggplant, guyabano, pomelo, citrus, pineapple, and rootcrops is on-going.

 

REGION 10 Northern Mindanao

 

25 – 150

2 – 6

Wet – Bukidnon;

Moist – rest of the region

60 – 90

20 – 32

Irrigated and rainfed rice and corn are in vegetative and flowering stages. Land preparation, transplanting and planting of irrigated, rainfed upland rice, and corn, in some areas are on-going. Harvesting of eggplant, tomatoes, citrus, cabbage, stringbeans and rootcrops is on-going.

 

REGION 11

Davao Region

 

25 – 150

2 – 6

Wet – Davao City;

Dry – rest of the region

60 – 90

24 – 33

Irrigated and rainfed rice are in vegetative and flowering stages. Land preparation, transplanting and planting of rice are also on-going. Harvesting of eggplant, guyabano, pomelo, citrus, pineapple, rootcrops and leafy vegetables is on-going.

 

REGION 12 SOCCSK-SARGEN

20 – 150

2 – 6

Dry

60 – 90

23 – 34

Irrigated and rainfed rice are in vegetative and flowering stages. Planting of sitao, mungo, peanuts, pechay, lettuce, spinach, patola, squash and carrots is on-going as well as land preparation, transplanting and planting of rice.

 

REGION 13 CARAGA

25 – 150

2 – 6

Wet

60 – 90

25 – 35

Harvesting of corn, cacao, papaya, guyabano and banana is in progress. Land preparation, transplanting and planting of rice are on-going. Irrigated and rainfed rice are in vegetative and flowering stages.

 

ARMM –Autonomous Region of Muslim Mindanao

25 – 75

1 – 4

Moist

45 – 90

23 – 34

Land preparation, transplanting and planting of rice are on-going. Irrigated and rainfed rice are in vegetative and flowering stages. Harvesting of rootcrops, fruits and leafy vegetables is on-going.



Prepared by:

 

 

SCF/ RAAM/ MAM/ DPO/ RMP/ ACC
FWSS Staff


DELIA T. BASCO
Chief, FWSS

 

 EDNA L. JUANILLO
(Officer-In-Charge)
Climatology and Agrometeorology Division (CAD)


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




Astronomical Diary
Issue for June 2017
Summer Solstice, Philippine nights are at their shortest and daytimes are at their longest during...




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A. Cloud Description

 

SKY CONDITIONDEFINITION/DESCRIPTION

Clear or Sunny Skies

  • State of the sky when it is cloudless, totally clear or with a few small light clouds visible.
  • Has a total cloud cover of less than one okta.

Partly Cloudy

  • State of the sky is within 2-5 oktas total cloud cover or has between 30% to 70% cover of the celestial dome.

Partly Cloudy to at Times Cloudy

  • Mostly partly cloudy but there are times when more than 70% of the celestial dome is covered with clouds.

Mostly or Mainly Cloudy

  • The sky is mostly covered with clouds but with possible brief periods of sunshine.
  • The total cloud cover is between 6 to 8 oktas.

Cloudy

  • The sky is covered with clouds between 6 to 8 oktas or has more than 70% cloud cover.
  • Predominantly more clouds than clear sky.
  • For a longer period during the day, the sun is obscured by clouds.

Overcast

  • The sky is totally or completely covered with thick and opaque clouds, 8 oktas or around 100% cloud cover.

A. Cloud Description

 

SKY CONDITIONDEFINITION/DESCRIPTION

Clear or Sunny Skies

  • State of the sky when it is cloudless, totally clear or with a few small light clouds visible.
  • Has a total cloud cover of less than one okta.

Partly Cloudy

  • State of the sky is within 2-5 oktas total cloud cover or has between 30% to 70% cover of the celestial dome.

Partly Cloudy to at Times Cloudy

  • Mostly partly cloudy but there are times when more than 70% of the celestial dome is covered with clouds.

Mostly or Mainly Cloudy

  • The sky is mostly covered with clouds but with possible brief periods of sunshine.
  • The total cloud cover is between 6 to 8 oktas.

Cloudy

  • The sky is covered with clouds between 6 to 8 oktas or has more than 70% cloud cover.
  • Predominantly more clouds than clear sky.
  • For a longer period during the day, the sun is obscured by clouds.

Overcast

  • The sky is totally or completely covered with thick and opaque clouds, 8 oktas or around 100% cloud cover.

Precipitation (Rain & Rainshowers) Description

B. Precipitation (Rain & Rainshowers) Description

1. Rains

  • Overcast sky with continuous or steady precipitation that may last several hours.
  • Has a water droplets of 0.5 mm or greater in size but if widely scattered the drops may be smaller.
  • Associated with meso-scale (synoptic) system or macro-scale (large scale) system like TC's, Easterly Waves, Monsoons, Fronts and ITCZ.

 

RAIN CLASSIFICATIONDEFINITION/DESCRIPTION

Very Light Rains

  • Scattered drops that do not completely wet an exposed surface regardless of duration.

Light Rains

  • The rate of fall is from trace to 2.5 mm per hour.
  • Individual drops easily identified and puddles(small muddy pools) form slowly.
  • Small streams may flow in gutters.

Moderate Rains

  • The rate of fall is between 2.5 mm to 7.5 mm per hour.
  • Puddles rapidly forming and down pipes flowing freely.

Heavy Rains

  • The rate of fall is greater than 7.5 mm per hour.
  • The sky is overcast, there is a continuous precipitation.
  • Falls in sheets, misty spray over hard surfaces.
  • May cause roaring noise on roofs.

Monsoon Rains

Other Descriptions:

  • Heavy and continuous precipitation attributed to either the Southwest or Northeast Monsoon.

Occasional Rains

  • Not frequent but is recurrent precipitation.

Widespread Rains

  • Precipitation occuring extensively throughout an area.

Frequent rains

  • Precipitation occuring regularly and often throughout the time duration.

Intermittent Rains

  • Precipitation which ceases at times and re-occur again.

 

2. Rainshowers

  • Precipitation of short duration but usually of greater intensity from convective clouds(primarily cumulus or cumulonimbus)
  • Characterized by sudden start and sudden end of precipitation, rapid change in intensity.

 

RAINSHOWERSDEFINITION/DESCRIPTION

Scattered Rainshowers

  • The rain-bearing clouds is distributed spatially resulting to rainshowers occuring to the bigger part of the forecasted area.

Isolated Rainshowers

  • The rain-bearing clouds is small and isolated resulting to rainshowers occuring only to a small part of the forecasted area.

Occasional Rainshowers

  • There is a large amount of convective clouds and precipitation occur in most parts of the forecasted area occasionally, and varying in rainfall amount.

Squally Rainshowers

  • Showers accompanied by brief but sudden strong or gale force winds.




C. Wind Description(Based from the Beaufort Wind Scale and the Saffir-Simpson Scale)

 

WIND DESCRIPTION

UNITS in KPH

UNITS in KNOTS

DESCRIPTION AS OBSERVED

Light Winds

19 or less

10 or less

  • Wind felt on face.
  • Ordinary wind vanes moved by wind.
  • Leaves rustle.

Moderate Winds

20-29

11-16

  • Wind raises dust and loose paper.
  • Small branches are moved.

Moderate to Occasionally Strong

   
  • Moderate winds mostly persist but there are instances during the forecast period that it reaches strong wind force.

 Fresh Winds*

30-39

17-21

  • Small trees in leaf begin to sway.
  • Crested wavelets appear on inland waters.
 Strong Winds 40-50 22-27
  • Large branches in motion.
  • Whistling heard in telephone wires.
  • Umbrellas used with difficulty.

Gale:

1 Near Gale*

2 Gale
3 Strong Gale*

 

51-62

63-75
76-87

 

28-33

34-40
41-47

 

  • Whole trees in motion.
  • Inconvenience felt when walking against wind.
  • Twigs break off road.
  • Cars veer on road.
  • Larger branches break off.
  • Slight structural damade occurs-roofing dislodged.

Stormy:

1 Storm

2 Violent Storm*

3 Typhoon*

 

88-102

103-117

118 or more

 

48-55

53-63

64 or more

 

  • Trees uprooted.
  • Considerable structural damage.
  • Widespread damage.
  • Widespread damage.

  • *Terms that are not normally used by meteorological centers in forecasts formulation and communication
  • Gust - any sudden brief increase of wind speed usually less than 20 seconds followed by a lull or slackening in wind speed




D. Sea Condition as affected by Wind Force (Based from the Beaufort Wind Scale)

 

WIND FORCEUNITS in (MPS)UNITS in (KTS)WAVE HT.(METERS)SEA CONDITION
 Calm 0-1.5 0-3.0 0.1
  • Ripples with the appearance of scales are formed but without foam crests.
 Smooth 1.5-4.0
 
3.0-8.0
 
0.1-0.5
 
  • Small wavelets, still short but more pronounced.

 

  • Crest have glassy appearance and do not break.
 Slight 4.0-8.0
 
8.0-16.0
 
0.5-1.25
 
  • Small waves, becoming longer.
  • Fairly frequent white horses.
 Moderate 8.0-11.0
 
16.0-22.0
 
1.25-2.5
 
  • Moderate waves taking a more pronounced long form.
  • Many white horses are formed-a change of some spray.
 Rough 11.0-16.0 22.0-32.0 2.5-4.0
  • Large waves begin to form.
  • Sea heaps up and white foam from breaking waves begin to be blown in streaks along the direction of wind.
 Very Rough 16.0-20.0

 
32.0-40.0

 
4.0-6.0

 
  • Moderately high waves of greater length.
  • Edges of crest begin to break into spindrift.
  • Foam is blown in well-mark streaks along the direction of the wind.
 High 20.0-26.0

 
40.0-52.0

 
6.0-9.0

 
  • High to very high waves with long overhanging crests.
  • The surface of the sea takes on white appearance.
  • The thumbling of the sea becomes heavy with visibility affected.
 Very High 26.0-34.0


 
52.0-68.0


 
9.0-14.0


 
  • Exeptionally high waves.
  • Small and medium size ships occasionally lost from view behind waves.
  • The sea is completely covered with long white patches of foam.
  • The edges of wave crest are blown into froth.
 Phenomenal >34.0

 
>68.0

 
>14.0

 
  • The air is completely filled with foam and spray.
  • Sea completely white with driving spray.
  • Visibility very seriously affected.

 

MDSI v2

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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DOST-PAGASA S&T Release
30 May 2017, Quezon City

ONSET OF THE RAINY SEASON

The occurrence of widespread rainfall recorded in most PAGASA stations monitored in the last five days under Type 1 Climate confirms the onset of the rainy season. Intermittent to continuous rains and thunderstorms, associated with the Southwest Monsoon, will continue to affect Metro Manila and the western section of the country.


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.


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