December 15, 2019

DOST’s PAGASA Severe Weather Bulletin No. 13

Severe Weather Bulletin #13

Typhoon”Tisoy”

Tropical Cyclone: WARNING

Issued at 08:00 pm, 02 December 2019
(Valid for broadcast until the next bulletin to be issued at 11:00 pm today.)
TYPHOON “TISOY” FURTHER INTENSIFIES AND IS ABOUT TO MAKE LANDFALL OVER SORSOGON.
  • The eyewall of Typhoon “TISOY” is now bringing violent winds over Northern Samar, Catanduanes, Albay, Camarines Sur, and Sorsogon.
  • “TISOY” is expected to make landfall over Sorsogon in the next 3 hours.
  • Heavy Rainfall Outlook
  • Between tonight and tomorrow morning: Frequent to continuous heavy to intense rains over Bicol Region, Northern Samar, Southern Quezon, Marinduque, and Romblon. Frequent to continuous heavy rains over Samar, Eastern Samar, Rizal, rest of Quezon, Laguna, and Oriental Mindoro. Moderate to intermittent heavy rains over Metro Manila, Occidental Mindoro, rest of CALABARZON, Cagayan, Isabela, Aurora, and the rest of Eastern Visayas.
  • Between tomorrow morning and evening: Frequent to continuous heavy to intense rains over CALABARZON, Central Luzon, Metro Manila, Mindoro Provinces, Marinduque, and Romblon. Occasional to frequent heavy rains over Cagayan Valley, Cordillera Administrative Region, and Calamian Islands. Intermittent heavy rains over Aklan ,Capiz, and northern Antique.
  • Residents in the aforementioned areas, especially those living in areas identified to be highly or very highly susceptible to flooding and rain-induced landslides, are advised to take appropriate actions, coordinate with local disaster risk reduction and management offices, and continue monitoring for updates, especially the Thunderstorm or Rainfall Advisories and Heavy Rainfall Warnings to be issued by PAGASA Regional Services Divisions.
  • Other Hazards and Information
  • Possible Storm Surge height in surge prone areas: more than 3.0 meters over several coastal areas in Albay, Sorsogon, Northern Samar, Catanduanes, Camarines Norte and Camarines Sur; up to 3 meters over several coastal areas in Batangas, Quezon, Marinduque, Oriental Mindoro, and Occidental Mindoro. For more information, refer to Storm Surge Warning #5” issued at 8 PM today.
  • Sea travel is risky over the seaboards of areas under TCWS, the seaboards of Northern Luzon, the western seaboard of Palawan, central seaboards of Visayas, and the northern and eastern seaboards of Mindanao due to prevailing or forecast rough sea conditions which may be perilous for maritime activities, especially for those using small seacrafts.
  • Gusty conditions may also be experienced in areas in Northern Luzon that are not under any TCWS (especially in the coastal and mountainous zones) due to the Northeast Monsoon.
Location of Eye/center

At 7:00 PM today, the eye of Typhoon “TISOY” was located based on all available data including Virac Doppler Radar at 90 km East of Juban, Sorsogon (12.9 °N, 124.8 °E )

Movement

Moving West at 20 kph

Strength

Maximum sustained winds of 165 kph near the center and gustiness of up to 230 kph

Forecast Position
  • 24 Hour(Tomorrow afternoon): In the vicinity of Abra De Ilog, Abra de Ilog(13.4°N, 120.7°E)
  • 48 Hour(Wednesday afternoon):345 km West of Iba, Zambales(14.8°N, 116.8°E)
  • 72 Hour(Thursday afternoon): 640 km West of Coron, Palawan (OUTSIDE PAR)(12.9°N, 114.4°E)
  • 96 Hour(Friday afternoon):700 km West of Coron, Palawan (OUTSIDE PAR)(10.8°N, 113.9°E)
Wind Signal (Areas with TCWS)
Tropical Cyclone Wind Signal no. 
AFFECTED AREAS
  • Luzon
    • Catanduanes
    • Camarines Sur
    • Albay
    • Sorsogon
    • Camarines Norte
    • Masbate including Ticao and Burias Islands
    • Romblon
    • and southern portion of Quezon (Perez
    • Alabat
    • Quezon
    • Mauban
    • Sampaloc
    • Lucban
    • Tayabas
    • Pagbilao
    • Lucena
    • Sariaya
    • Candelaria
    • Dolores
    • Tiaong
    • San Antonio
    • Atimonan
    • Padre Burgos
    • Agdangan
    • Plaridel
    • Unisan
    • Pitogo
    • Gumaca
    • Lopez
    • Macalelon
    • General Luna
    • Calauag
    • Guinayangan
    • Tagkawayan
    • Buenavista
    • Mulanay
    • San Narciso
    • San Francisco
    • San Andres)
    • Marinduque
    • Oriental Mindoro
    • southern portion of Batangas (San Juan
    • Padre Garcia
    • Ibaan
    • Batangas City
    • Rosario
    • Taysan
    • Lobo)
  • Visayas
    • Northern Samar
    • northern portion of Eastern Samar (Can-avid
    • Dolores
    • Maslog
    • Oras
    • Arteche
    • Jipapad
    • San Policarpio)
    • and northern portion of Samar (Catbalogan
    • Jiabong
    • Motiong
    • Paranas
    • San Jose de Buan
    • San Jorge
    • Pagsanghan
    • Tarangnan
    • Sta. Margarita
    • Gandara
    • Matuguinao
    • Calbayog
    • Tagapul-an
    • Almagro
    • Sto. Niño)
  • Mindanao
Meteorological Condition
  • A tropical cyclone will affect the locality.
  • Winds of greater than 121 kph up to 170 kph may be expected in at least 18 hours.
Impact of the Wind
  • Many coconut trees may be broken or destroyed.
  • Almost all banana plants may be downed and a large number of trees may be uprooted.
  • Rice and corn crops may suffer heavy losses.
  • Majority of all nipa and cogon houses may be unroofed or destroyed and there may be considerable damage to structures of light to medium construction.
  • There may be widespread disruption of electrical power and communication services.
  • In general, moderate to heavy damage may be experienced, particularly in the agricultural and industrial sectors.
Precautionary Measures
  • The disturbance is dangerous to the communities threatened/affected.
  • The sea and coastal waters will be very dangerous to all seacrafts.
  • Travel is very risky especially by sea and air.
  • People are advised to seek shelter in strong buildings, evacuate low-lying areas and to stay away from the coasts and river banks.
  • Watch out for the passage of the “eye” of the typhoon indicated by a sudden occurrence of fair weather immediately after very bad weather with very strong winds coming gnerally from the north.
  • When the “eye” of the typhoon hit the community do not venture away from the safe shelter because after one to two hours the worst weather will resume with the very strong winds coming from the south.
  • Classes in all levels should be suspended and children should stay in the safety of strong buildings.
  • Disaster preparedness and response agencies/organizations are in action with appropriate response to actual emergency.
What To Do
  • If the house is not strong enough to withstand the battering of strong winds go to designated evacuation center aor seek shelter in stronger houses.
  • Stay in safe houses until after the disturbances has left the area.
  • Evacuate from low-lying area and reiverbanks and stay away from coastal areas for possible flooding and strom surge.
  • All travel and outdoor activities should be cancelled.
  • Watch out for the passage of the “Eye Wall and the “Eye” of the typhoon.
Tropical Cyclone Wind Signal no. 
AFFECTED AREAS
  • Luzon
    • Metro Manila
    • Bulacan
    • Bataan
    • Tarlac
    • Pampanga
    • Nueva Ecija
    • southern Aurora (Dipaculao
    • Maria Aurora
    • Baler
    • San Luis
    • Dingalan)
    • Cavite
    • rest of Batangas
    • Laguna
    • Rizal
    • rest of Quezon including Polillo Islands
    • Occidental Mindoro
    • Calamian Islands
    • Zambales
    • Cuyo Islands
    • Pangasinan
  • Visayas
    • Northern Samar
    • northern portion of Eastern Samar (Can-avid
    • Dolores
    • Maslog
    • Oras
    • Arteche
    • Jipapad
    • San Policarpio)
    • and northern portion of Samar (Catbalogan
    • Jiabong
    • Motiong
    • Paranas
    • San Jose de Buan
    • San Jorge
    • Pagsanghan
    • Tarangnan
    • Sta. Margarita
    • Gandara
    • Matuguinao
    • Calbayog
    • Tagapul-an
    • Almagro
    • Sto. Niño)
  • Mindanao
Meteorological Condition
  • A tropical cyclone will affect the the locality.
  • Winds of greater than 61 kph and up to 120 kph may be expected in at least 24 hours.
Impact of the Wind
  • Some coconut trees may be tilted with few others broken.
  • Few big trees may be uprooted.
  • Many banana plants may be downed.
  • Rice and corn may be adversely affected.
  • Large number of nipa and cogon houses may be partially or totally unroofed.
  • Some old galvanized iron roofings may be peeled off.
  • In general, the winds may bring light to moderate damage to the exposed communities.
Precautionary Measures
  • The sea and coastal waters are dangerous to small seacrafts
  • Special attention should be given to the latest position, the direction and speed of movement and the intensity of the storm as it may intensify and move towards the locality.
  • The general public especially people travelling by sea and air are cautioned to avoid unnecessary risks.
  • Outdoor activities of children should be postponed.
  • Secure properties before the signal is upgraded.
  • Disaster preparedness agencies / organizations are in action to alert their communities.
What To Do
  • Prepare flashlights, batteries , matches, kerosene lamps, or candles and charcoal in anticipation of power failure, first aid kit and store ready to eat foods.
  • Keep your cell phones fully charged.
  • Elevate household things in case of flooding.
  • For fishing folks, secure fishing boats in safe area.
Tropical Cyclone Wind Signal no. 
AFFECTED AREAS
  • Luzon
    • Southern Isabela (Palanan
    • Dinapigue
    • San Mariano
    • San Guillermo
    • Benito Soliven
    • Naguilian
    • Reina Mercedes
    • Luna
    • Aurora
    • Cabatuan
    • San Mateo
    • Cauayan City
    • Alicia
    • Angadanan
    • Ramon
    • San Isidro
    • Echague
    • Cordon
    • Santiago City
    • Jones and San Agustin)
    • Mountain Province
    • Ifugao
    • Benguet
    • Nueva Vizcaya
    • Ilocos Sur
    • La Union
    • Quirino
    • rest of Aurora
    • northern portion of Palawan (Taytay
    • Araceli
    • Dumaran
    • San Vicente
    • Roxas)
  • Visayas
    • Rest of Negros Occidental
    • Negros Oriental
    • Bohol
    • Siquijor
    • rest of Cebu
    • rest Leyte
    • and Southern Leyte
  • Mindanao
    • Dinagat Islands and Siargao Island
Meteorological Condition
  • A tropical cyclone will affect the locality.
  • Winds of 30-60 kph may be expected in at least 36 hours or intermittent rains may be expected within 36 hours. (When the tropical cyclone develops very close to the locality a shorter lead time of the occurrence of the winds will be specified in the warning bulletin.)
Impact of the Wind
  • Twigs and branches of small trees may be broken.
  • Some banana plants may be tilted or downed.
  • Some houses of very light materials (nipa and cogon) may be partially unroofed.
  • Unless this warning signal is upgraded during the entire existence of the tropical cyclone, only very light or no damage at all may be sustained by the exposed communities.
  • Rice crop, however, may suffer significant damage when it is in its flowering stage.
Precautionary Measures
  • When the tropical cyclone is strong or is intensifying and is moving closer, this signal may be upgraded to the next higher level.
  • The waves on coastal waters may gradually develop and become bigger and higher.
  • The people are advised to listen to the latest severe weather bulletin issued by PAGASA every six hours. In the meantime, business may be carried out as usual except when flood occur.
  • Disaster preparedness is activated to alert status.
What To Do
  • Inspect your house if necessary repair/fixing is needed.
  • Clean up drainage system.
  • Harvest crops tha can be yielded.
  • Monitor the latest Severe Weather Bulletin issued By PAGASA every six hours and hourly updates.
The public and the disaster risk reduction and management council concerned are advised to take appropriate actions and watch for the next Severe Weather Bulletin to be issued at 11 PM today.

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