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HYDROMET HAZARD (DILG).ppt
- 1. PAGASA The Weather and Climate Authority Payong PAGASA ENGR. HILARIO G. ESPERANZA SENIOR WEATHER SPECIALIST PAGASA BAGUIO STATION PAGASA-DOST
- 2. PAGASA The Weather and Climate Authority Payong PAGASA
- 3. PAGASA The Weather and Climate Authority Payong PAGASA OUTLINE * Weather Causing Phenomena * Tropical Cyclone Forecast Chart * Tropical Cyclone Forecast Areas * Definition of the Super Typhoon (STY) Category * Tropical Cyclone Warning Signal (TCWS) System * Hazard Associated with Tropical Cyclone * Storm Surge * Beneficial effects of Tropical Cyclone
- 4. PAGASA The Weather and Climate Authority Payong PAGASA THUNDERSTORMS SHEAR LINE MONSOONS INTER TROPICAL CONVERGENCE ZONES(ITCZ) TROPICAL CYCLONE
- 5. A local disturbance produced by a cumulonimbus cloud, and always accompanied by lightning and thunder, usually with strong gust of wind, heavy rain and sometimes with hail.
- 6. PAGASA The Weather and Climate Authority Payong PAGASA TYPES OF CLOUDS
- 7. PAGASA The Weather and Climate Authority Payong PAGASA Lighting Tornado/ Waterspout Heavyrains Thunderstorm: Associated Hazard Hail
- 8. PAGASA The Weather and Climate Authority Payong PAGASA
- 9. PAGASA The Weather and Climate Authority Payong PAGASA Forked Lightning Crooked lightning bolts discharge from cloud to ground or cloud to air Sheet Lightning Clouds, rain blocks forked lightning bolt, but flash illuminates clouds. Ball Lightning On rare occasions, small glowing balls loops from the cloud, but quickly vanish.
- 10. PAGASA The Weather and Climate Authority Payong PAGASA DAMAGES DUE TO LIGHTNING STRIKE
- 11. PAGASA The Weather and Climate Authority Payong PAGASA
- 13. HAZARD ASSOCIATED WITH THUNDERSTORM: HEAVY RAIN HEAVY RAIN (15 MIN TO 0NE HOUR) DURING THUNDERSTORM) MAY CAUSE FLASH FLOODS OR FLOODING IN LOW LYING AREAS MAY ALSO CAUSE LANDSLIDES IN MOUNTAIN AREAS
- 14. PAGASA The Weather and Climate Authority Payong PAGASA
- 15. PAGASA The Weather and Climate Authority Payong PAGASA Tornado – is a localized windstorm characterized by a visible funnel shaped, rapidly whirling clouds that extends from the base of a dark cumulonimbus. *whirling winds are estimated to exceed 450km/hr and may last for a few minutes *can strike any time of the day and can leave a mark of destruction
- 16. PAGASA The Weather and Climate Authority Payong PAGASA Mammatus clouds – precursory signs of an impending tornado
- 17. PAGASA The Weather and Climate Authority Payong PAGASA DAMAGES DUE TO TORNADO
- 18. PAGASA The Weather and Climate Authority Payong PAGASA HOW CAN I KEEP MYSELF SAFE * If at work, home or in school take cover in any interior hallway and on the lowest place in a building. Stay away from windows. * Secure outdoor object (like garbage cans, garden tools, toys & etc.) to prevent them from becoming missiles during its passage. * Lie down in any depression when tornado is about to strike as it is considerably better than remaining upright. * If driving a vehicle, stop and abandon it and seek shelter outside in the nearest depression ditch or ravine.
- 19. PAGASA The Weather and Climate Authority Payong PAGASA is just a weak tornado that forms over water
- 20. PAGASA The Weather and Climate Authority Payong PAGASA
- 21. PAGASA The Weather and Climate Authority Payong PAGASA Sample pictures of hail
- 22. PAGASA The Weather and Climate Authority Payong PAGASA
- 23. PAGASA The Weather and Climate Authority Payong PAGASA SHEAR LINE
- 24. WARM AIR SHEAR LINE ALONG THE FRONT, CLOUDS DEVELOP BRINGING HEAVY RAINS COLD AIR COLD AIR
- 25. PAGASA The Weather and Climate Authority Payong PAGASA Animated Satellite Picture of a Shear Line Affecting the Northern Part of the Philippines
- 26. PAGASA The Weather and Climate Authority Payong PAGASA THE MONSOONS -IS A SEASONAL SHIFT IN THE PREVAILING WIND DIRECTION THAT LAST SEVERAL MONTHS. MONSOON DERIVED FROM AN ARABIC WORD “MAUSIM” WHICH MEANS SEASONS. SOUTHWEST MONSOON NORTHEAST MONSOON
- 27. PAGASA The Weather and Climate Authority Payong PAGASA SOUTHWEST MONSOONS SOUTHWEST MONSOON (HABAGAT) •Seasonal winds blowing from the southwest direction. •It causes extensive cloud development and rainfall at the western sections of the country. •Occurs during the months of June to October each year. southwest direction
- 28. PAGASA The Weather and Climate Authority Payong PAGASA NORTHEAST MONSOONS northeast direction NORTHEAST MONSOON (AMIHAN) •Seasonal winds blowing from the northeast direction. • It causes cloud development and rainfall at the eastern sections of the country. •It normally occurs during the months of November to February each year.
- 29. PAGASA The Weather and Climate Authority Payong PAGASA MONSOONS
- 30. PAGASA The Weather and Climate Authority Payong PAGASA INTERTROPICAL CONVERGENCE ZONE (ITCZ) Series of low pressure areas brought about by converging Northeast (NE) and Southeast (SE) trade winds that cause thunderstorms and rain- showers. L L L L
- 31. PAGASA The Weather and Climate Authority Payong PAGASA • Showers to heavy rains which may cause flashflood or flooding • Widespread thunderstorms • Breeding ground of tropical cyclones • It oscillates over the Philippines during the month of May and October Hazards Associated with Intertropical Convergence Zone (ITCZ)
- 32. PAGASA The Weather and Climate Authority Payong PAGASA
- 33. Satellite Picture of Typhoon Feria
- 34. PAGASA The Weather and Climate Authority Payong PAGASA
- 35. PAGASA The Weather and Climate Authority Payong PAGASA TROPICAL CYCLONE FORMATION it requires …… • Sea surface temperature 27 degree Celsius • High humidity up to 5 km above the earth surface • Weak vertical windshear • Good inflow(wind convergence) at the lower level and outflow(divergence) at the upper level
- 36. PAGASA The Weather and Climate Authority Payong PAGASA CLIMATOLOGICAL TRACKS (QUARTERLY) OF TROPICAL CYCLONES ENTERING THE PAR
- 37. PAGASA The Weather and Climate Authority Payong PAGASA MONTHLY AVERAGE FREQUENCY OF OCCURRENCE OF TROPICAL CYCLONES IN THE PHILIPPINE AREA OF RESPONSIBILITY Tracks of tropical cyclones occurring within the Philippines Area of Responsibility (PAR) during 1951-2021. Monthly number of of TCs within the PAR during 1951-2021. 19 TO 20 TCs per year And 8 to 9 TCs make land falling
- 38. PAGASA The Weather and Climate Authority Payong PAGASA TROPICAL CYCLONE FORECAST CHART
- 39. Tropical Cyclone Forecast Chart 12 hr 36 hr 60 hr TCWS 1 or 2 TCWS 3 PATAAS 100 km-radius 500 km-radius Legend Date when/what Tropical Cyclone Wind Area
- 40. PAGASA The Weather and Climate Authority Payong PAGASA TROPICAL CYCLONE FORECAST AREAS
- 41. Northernmost limits of TC Advisory Domain and TC Information Domain southward to 27°N Tropical Cyclone Monitoring Domain
- 42. PAGASA The Weather and Climate Authority Payong PAGASA
- 43. PAGASA The Weather and Climate Authority Payong PAGASA NAMES OF TROPICAL CYCLONE IN THE PHILIPPINES A B C D E F G H I J K L M N O P Q R S T U V W Y Z AGATON BASYANG CALOY DOMENG ESTER FLORITA GARDO HENRY INDAY JOSIE KARDING LUIS MAYMAY NENENG OBET PAENG QUEENIE ROSAL SAMUEL TOMAS UMBERTO VENUS WILMA YAYANG ZENY AMANG BETTY CHEDENG DODONG EGAY FALCON GORING HANNA INENG JENNY KABAYAN LIWAYWAY MARILYN NIMFA ONYOK PERLA QUIEL RAMON SARAH TAMARAW UGONG VIRING WENG YOYOY ZIGZAG III 2023 2027 2031 2035 AURING BISING CRISING DANTE EMONG FABIAN GORIO HUANING ISANG *JACINTO KIKO LANNIE *MIRASOL NANDO *OPONG PAOLO QUEDAN RAMIL SALOME TINO UWAN VERBENA WILMA YASMIN ZORAIDA I 2021 2025 2029 2033 AGHON BISING CARINA DINDO ENTENG FERDIE GENER HELEN IGME JULIAN KRISTINE LEON MARCE NIKA OFEL PEPITO QUERUBIN ROMINA SIONY TONYO UPANG VICKY WARREN YOYONG ZOSIMA IV 2024 2028 2032 2036 II 2022 2026 2030 2034
- 44. PAGASA The Weather and Climate Authority Payong PAGASA NAMES OF TROPICAL CYCLONE IN THE PHILIPPINES AUXILLIARY LIST A B C D E F G H I J ALAMID BRUNO CONCHING DOLOR ERNIE FLORANTE GERARDO HERNAN ISKO JEROME I 2021 2025 2029 2033 ALAKDAN BALDO CLARA DENCIO ESTONG FELIPE GOMER HELING ISMAEL JULIO IV 2024 2028 2032 2036 AGILA BAGWIS CHITO DIEGO ELENA FELINO GUNDING HARRIET INDANG JESSA II 2022 2026 2030 2034 ABE BERTO CHARO DADO ESTOY FELION GENING HERNA IRMA JAIME III 2023 2027 2031 2035
- 45. PAGASA The Weather and Climate Authority Payong PAGASA AREAS OF FORMATION OF TROPICAL CYCLONES AND ANNUAL AVERAGE NUMBER WORLDWIDE AN AVERAGE OF 100 TROPICAL CYCLONES OCCUR WORLDWIDE; 30 OF WHICH FORM IN THE WESTERN NORTH PACIFIC AREA
- 46. PAGASA The Weather and Climate Authority Payong PAGASA DEFINITION OF THE SUPER TYPHOON (STY) CATEGORY
- 47. Tropical Depression (TD) Tropical Storm (TS) Severe Tropical Storm (STS) Typhoon (TY) Super Typhoon (STY) Less than 62 km/h Less than 17.2 m/s Less than 34 kt 62-88 km/h 17.2-24.4 m/s 34-47 kt 89-117 km/h 24.5-32.6 m/s 48-63 kt 118-184 km/h 32.7-51.2 m/s 64-99 kt 185 km/h or higher 51.3 m/s or higher 100 kt or higher Highest TCWS: 1 Highest TCWS: 2 Highest TCWS: 3 Highest TCWS: 4 Highest TCWS: 5 Basis: Tropical Cyclone Programme Report No. TCP-23 / WMO/TD-No. 196: Typhoon Committee Operational Manual (Meteorological Component, 2022 Edition) Basis: commonly-used threshold of peak typhoon category within the region Revised definition of the Super Typhoon (STY) category
- 48. PAGASA The Weather and Climate Authority Payong PAGASA TROPICAL CYCLONE WARNING SIGNAL(TCWS) SYSTEM
- 49. Tropical Cyclone Wind Signal (TCWS) System
- 50. PAGASA The Weather and Climate Authority Payong PAGASA TCWS TCWS Number One (TCWS # 1) A tropical cyclone may threaten or affect the locality. Winds of 39-61 kph may be expected in at least 36 hours. POTENTIAL IMPACTS: Twigs and branches of small trees may be broken. Some banana plants may tilt or land flat on the ground. Rice in flowering stage may suffer significant damage. Some houses of very light materials (nipa and cogon) houses may be partially unroofed. No damage to Very light damage at all may be sustained by exposed communities.
- 51. PAGASA The Weather and Climate Authority Payong PAGASA TCWS Number Two (TCWS # 2) A moderate tropical cyclone will affect the locality. Winds between 62 to 88 kph may be expected in at least 24 hours. POTENTIAL IMPACTS: Some coconut trees maybe tilted with few others broken. Few big trees maybe uprooted. Many banana plants maybe downed. Rice and corn maybe adversely affected. Large number of nipa and cogon houses maybe partially or totally unroofed. Some old galvanized iron roofings maybe peeled off. Light to moderate damage to the exposed communities. TCWS
- 52. PAGASA The Weather and Climate Authority Payong PAGASA TCWS TCWS Number Three (TCWS # 3) • A strong tropical cyclone will affect the locality. Winds of 89 to 117 kph may be expected in at least 18 hours. POTENTIAL IMPACTS: • 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 be uprooted. • Majority of nipa and cogon houses maybe unroofed or destroyed and considerable damage to structures of light to medium construction. • Widespread disruption of electrical power and communication services. • Moderate to heavy damage maybe experienced in the agricultural and industrial sectors.
- 53. PAGASA The Weather and Climate Authority Payong PAGASA TCWS TCWS Number Four (TCWS # 4) A very strong typhoon will affect the locality. Wind from 118-184 kph may be expected in at least 12 hours based on the first issuance. POTENTIAL IMPACTS: Coconut plantations may suffer extensive damage. Many large trees may be uprooted. Rice and corn plantation may suffer heavy losses. Most residential and institutional buildings of mixed construction material may be severely damaged. Electrical power distribution and communication services may be severely disrupted. Heavy to very heavy damage to the affected communities .
- 54. PAGASA The Weather and Climate Authority Payong PAGASA TCWS Number Five (TCWS # 5) A super typhoon will affect the locality. Winds of more than 185 kph may be expected in less than 12 hours. POTENTIAL IMPACTS: Coconut plantations may suffer extensive damage. Many large trees may be uprooted. Rice and corn plantation may suffer heavy losses. Most residential and institutional buildings of mixed construction material may be severely damaged. Electrical power distribution and communication services may be severely disrupted. Very heavy to Widespread Damage to affected communities. TCWS
- 55. PAGASA The Weather and Climate Authority Payong PAGASA PHOTOS: HAZARDS ASSOCIATED WITH TROPICAL CYCLONE
- 56. PAGASA The Weather and Climate Authority Payong PAGASA
- 57. PAGASA The Weather and Climate Authority Payong PAGASA
- 58. PAGASA The Weather and Climate Authority Payong PAGASA TYPHOON “YOLANDA’ NOV. 8, 2013 SAMAR STRONG/GUSTY WINDS
- 59. PAGASA The Weather and Climate Authority Payong PAGASA TROPICAL STORM “EGAY” JULY 2-7, 2015 KENNON ROAD LANDSLIDE/MUDFLOWS
- 60. PAGASA The Weather and Climate Authority Payong PAGASA Super Typhoon “Rolly” November. 1, 2020 Virac, Catanduanes STRONG/GUSTY WINDS BEFORE AFTER
- 61. PAGASA The Weather and Climate Authority Payong PAGASA T. “Odette” Dec. 14-18, 2021 Surigao Del Norte STRONG/GUSTY WINDS
- 62. PAGASA The Weather and Climate Authority Payong PAGASA T. “YOLANDA” NOV. 8, 2013 LEYTE STORM SURGE T. “PEDRING” SEPT. 11, 2011 ROXAS BLVD STORM SURGE
- 63. PAGASA The Weather and Climate Authority Payong PAGASA
- 64. PAGASA The Weather and Climate Authority Payong PAGASA STORM SURGE
- 65. PAGASA The Weather and Climate Authority Payong PAGASA BENEFICIAL EFFECTS OF TROPICAL CYCLONE
- 66. PAGASA The Weather and Climate Authority Payong PAGASA
- 67. PAGASA The Weather and Climate Authority Payong PAGASA
- 68. PAGASA The Weather and Climate Authority Payong PAGASA
- 69. PAGASA The Weather and Climate Authority Payong PAGASA THANK YOU!