3.1.1.3 Weather Hazards - Tropical Storm Case Study: Typhoon Haiyan Flashcards
What category was typhoon Haiyan?
category 5 super typhoon
When did typhoon Haiyan occur?
November 2013 - hit areas in Southeast Asia particularly the Philippines
Where and when was there the first sign of typhoon Haiyan and how did it change?
- 2nd November 2013 - appears as low pressure (tropical depression) in the Pacific → heading towards the Philippines
- gathers intensity → super typhoon
When did typhoon Haiyan make landfall?
7/8th November 2013 the typhoon made landfall in the city of Guiuan on the island of Samar (in Philippines)
When did typhoon Haiyan begin to die out?
- after devastating many islands in the Philippines with strong winds, heavy rain and very high storm surges, it weakened whilst travelled northwestwards
- eventually collapsed after hitting Vietnam on the 10th of November
What was the height of the storm surges caused by typhoon Haiyan equivalent to and what did the storms surges cause?
- caused coastal areas to be devastated
- storm surge occurred - equivalent to a 15ft tsunami
- reached 5 metres over sea level - some wave marks were recorded to be 14.1 metres high
What city did typhoon Haiyan smash into and what is the population of that city?
smashes into city of Tacloban (in Philippines) which has population of 200,000 people
When did typhoon Haiyan reach its peak?
reached its peak the moment it hit the Philippines
How is the Philippines when dealing with storms and in what aspects was typhoon Haiyan unexpected?
- Philippines is used to dealing with storms and typhoons
- however, storm surge was completely unprecedented
What were the wind speeds of typhoon Haiyan and what did this cause?
- incredibly strong winds
- 10 minute sustained winds of 145 mph
- 1 minute sustained winds of 194 mph
- caused typhoon Haiyan to be incredibly destructive
How many people died and how did they die as a primary effect of typhoon Haiyan in the Philippines?
- 6,300 people died (and more missing) in the Philippines
- died from drowning or severe injuries caused by falling debris
How many fishing boast were destroyed as a primary effect of typhoon Haiyan and what did this cause?
- 30,000 fishing boats were destroyed
- caused livelihoods to be severely damaged
How many people did the storm surges displace as a primary effect of typhoon Haiyan and why?
- 600,000 people were displaced
- as the storm surges flattened and destroyed coastal areas
How many homes were destroyed and why (primary effect of typhoon Haiyan)?
40,000 homes were damaged or completely destroyed mainly due to storm surges
What province in the Philippines was worst affected and why (primary effect of typhoon Haiyan)?
- province of Leyte worst affected
- hit by 5 metre storm surge
What % of the city of Tacloban was worst destroyed?
- 90% of city was destroyed
- left hundreds of thousands of people homeless and killed hundreds
What did strong winds and heavy rain cause (primary effect of typhoon Haiyan)?
- strong winds and heavy rain damaged buildings and infrastructure
- knocked down power lines and telephone poles
- also destroyed crops
How many mm of rain fell and what did this cause (primary effect of typhoon Haiyan)?
- 4000mm+ of rain fell over a few days
- caused widespread catastrophic flooding
How was transport infrastructure damage (primary effect of typhoon Haiyan)?
- airports, ports and public services were damaged
- caused remote communities to be cut off
What was the total number of people affected by typhoon Haiyan (secondary effects of typhoon Haiyan)?
14 million + people were affected
What were there shortages of as a secondary effect of typhoon Haiyan and what did this lead to?
- there were shortages of food, water and aid supplies
- this affected health and sanitation and led to outbreaks of disease
What slowed down relief efforts for typhoon Haiyan (secondary effects of typhoon Haiyan)?
flooding and heavy rain caused landslides which blocked roads and slowed relief efforts
What had to happen to the dead bodies of the people killed by typhoon Haiyan and why (secondary effects of typhoon Haiyan)?
- as the mortality rate was so high, morgues became overwhelmed and identification was difficult
- mass burials for thousands of unidentified people had to take place in order to limit the spread of disease from bodies