- Formed 23rd August 2005 over the Bahamas.
- Dissipated 30th August over central USA.
- South East USA, New Orleans and Louisiana mostly
- Category 4/5
- Pressure 903mbar
- Cost of damage = $300 billion
MOST EXPENSIVE NATURAL HAZARD EVER
Prediction and Preparation:
· National hurricane centre tracked it and warned of its approach.
· 80% evacuated, but poorer 20% left behind.
· Mayor issued a warning
· The US coastguards called up reserve members and made preparations.
· The president declared an emergency on the 27th.
· Devastating damage predicted.
· 1.2 million ordered to evacuate.
· Into emergency centres (Louisiana Superdrome)
· Hurricane Katrina began as a very low pressure weather system, which strengthened to become a tropical storm and eventually a hurricane as it moved West and neared the Florida coast on the 25th August.
· New Orleans is low lying land so the levees broke from the storm surge causing more damage.
· High water temperatures in the gulf of Mexico where Katrina passed over.
· New Orleans is near the coast.
· Warm moist air rises off the warm sea and begins to condense into clouds, as they rise the begin to spiral due to the Earths rotation.
· 1, 836 people died.
· 300,000 houses destroyed
· 3 million without electricity
· Main bridge collapsed
· Coastal habitats damaged
· 250mm + rainfall
· It reached winds above 175mph.
· Storm surge = 6m +
· Farmland ruined by saltwater
· 1.3 million acres of trees lost
· 100,000 stayed behind in New Orleans
· Casinos destroyed
· Loss of income from farms/casinos etc
· Toxic chemicals released due to damage
· Oil rigs ripped from anchors
· Hotels/tourist facilities destroyed
· 9000 sheltered in the Superdrome
· Coastal Erosion
· 80% of New Orleans submerged under 6ft of water includes roads and railway
· 90% of buildings damaged in Mississippi
· 1200 people drowned
· Cost of Damage = $300 billion
· Tens of thousands made homeless
· 230,000 jobs lost from destroyed businesses
· Water supplies polluted with sewage, chemicals and dead bodies.
· Fallen trees blocked roads
· Wind smashed windows and damaged high rise
· Electricity, gas and water supplies lost
· 705 missing
· Insurance companies refuse to those living near the coast
· Widespread looting, murder and **** to fight for the limited supplies
· Telecommunications failed
· Oil prices rise around the world
· Water diseases (Cholera) spread easily
· The dead could not be buried
· Football team had to find a new training ground
· Volunteers helped evacuees.
· 58, 000 national guard helped with; clean up, law, order and rescue
· Aid offered from around the world
· President George Bush—too slow to help
· 100, 000 trailers provided for the homeless, or hotel bills paid
· $62.3 billion US aid
· 70 countries provided food, medicine and hygiene
· Plans made to strengthen flood defences in New Orleans
· 1 week for the bodies to be removed
· 1 week for all to be given assistance