NSTP

• Tropical Cyclone


  An intense low pressure system of at least 30kph maximum sustained winds
• Basic structure of a Tropical Cyclone

  • Eye
  • Eye Wall
  • Spiral Rain Bands
• Tropical cyclone classification by strength

  • Tropical Depression: 61kph or less
  • Tropical Storm: 62kph - 88kph
  • Severe Tropical Storm: 89kph - 117kph
  • Typhoon: 118kph - 220kph
  • Super Typhoon: more than 220kph
• Hazards associated with tropical cyclones

  • Heavy rains
  • Strong winds
  • Storm surge
  • Landslide / Mudflows
• Flood


  A rise, usually brief, in the water level in a stream to a peak from which the water level recedes at a slower rate
• Causes of flooding


  • Heavy, continuous rain that lasts for days or ceases only briefly
  • Heavy siltation of the river system that decreases the carrying capacity of the river
  • Overtopping of dikes and levees
  • Insufficient carrying capacities of the river system
  • Changes in tide
• What to do before a Tropical Cyclone

  1. Know the hazard and plan with your family regarding what to do in case of emergencies

  2. Conduct of tree planting and clean up drives in your communities

  3. If house is somewhat weak, strengthen foundations and anchor it to stable and strong structures

  4. Familiarize your local evacuation routes, alarm/ warning systems and educate others

  5. Maintain a 72-hour emergency survival bag

  6. Participate in trainings, drills and exercises
• What to do during a Tropical Cyclone

  1. Always monitor the latest Severe Weather Bulletin issued by PAGASA

  2. Trim the branches of large trees

  3. For fisherfolk, do not set sail and secure boats to the shore

  4. For Public Storm Warning Signal 1 to 3, everyone is advised to stay inside safe and strong houses

  5. Board up windows and roofs and securely fasten them

  6. Conduct pre-emptive evacuation if living in flood and landslide prone areas

  7. For Public Storm Warning Signal 4 to 5, everyone is advised to stay in safe houses or evacuation centers

  8. Turn off main switch and unplug all electrical equipment before leaving your house

  9. Do not cross areas with strong currents and/or flood waters reaching above the knee

  10. Keep away from toppled electric posts and fallen electric wires

  11. Bring your pets/domesticated animals with you when evacuating to safe areas
• What to do after a Tropical Cyclone

  1. Re-enter dwellings upon the ALL CLEAR signal from the authorities

  2. Check your self for any sustained injuries and apply first aid if necessary

  3. Clean your dwellings and immediate surroundings

  4. Boil water before drinking and protect food from contamination
• DAGHANG SALAMAT!!!!