DNPrefi

• Red Warning


  more than 30 mm rain
• Red Warning 


  Evacuation
• Red warning


  observed in 1hr and expected to continue in the next 2 hrs
• Red Warning


  Serious flooding expected in low-lying areas
• Orange Warning 


  15-30 mm rain
• Orange Warning


  for possible evacuation
• Orange Warning


  Flooding is threatening
• Yellow warning 


  7.5-17 mm rain
• Yellow Warning


  Flooding is possible
• Yellow warning


  monitor the weather condition
• Take action


  3 m above
• Take action


  Storm surge is Catastrophic. There is a significant threat to life. Mandatory evacuation is enforced.
• Alarm 


  1.1-3 m
• Alarm

  Storm surge is EXPECTED
• Alarm


  Conditions could become life threatening. All marine activities must be cancelled.
• Alert


  0.5-1 m
• Alert


  Storm surge is POSSIBLE
• Alert


  Stay away from the coast or beach. Preparation measures must be carried out.
• No alert


  No action required
• Slight 


  Small waves that begin to grow longer
• Slight


  0.6-1.2 meters
• Moderate


  Moderate waves up tp 1-storey building that grow longer
• Moderate


  1.2-2.5 meters
• Rough

  bigger waves up to 1 1/2 storey building that grow longer; white foamy crests form
• Rough


  2.6-4.0 meters
• Very Rough


  moderately high waves up to 2-storey building that are longer; foamy crests break up in sea sprays or water droplets
• Very rough


  4.1-6.0
• Gale


  a strong, sustained wind that has a speed of 53 kph or more
• Gale


  it can create 3.4 meters of sea wave height near coast, which equivalent to the height of a one storey building.
• Gale Warning


  issued when the wind strength is expected to be at least 52 kph within 6-12 hrs
• Impact of Gale Force Winds

  Big sea waves, Cancellation of marine transportation,loss for fisherfolk and fishing companies
• Tropical Cyclone


  locally known as bagyo, is an intense weather disturbance that is characterized by rotating clouds. May reach up to 185 km/h or more.
• the eye


  area of calm wind and good weather
• the eyewall


  area of heavy rains and strong winds
• tropical depression


  61 km/hr or less
• tropical storm


  62-88 km/hr
• severe tropical storm


  89-117 km/hr
• typhoon


  118-184 km/hr
• super typhoon


  185 km/hr or more
• what hazards and impacts can a tropical cyclone bring?

  flood, landslide, mudflow, storm surge, damage to properties