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Hurricane Katrina - Florida

Hurricane Rita - US, Cuba

Earthquake - Pakistan

Hurricane Wilma - US, Mexio, Cuba

Landslide - Philippines

Hurricane Stan - Mexico

Explosion & fire - UK

Other events
Catastrophe Report 8
August 8th to February 23rd 2006


Hurricane Katrina - Florida

Territory:   United States
Region:   Florida, Gulf Coast
Date:   25 – 29 August 2005
Event:   Hurricane Katrina
Impact:   Hurricane Katrina broke many records, including – with losses estimated at US$125 billion – the costliest natural catastrophe ever. At US$38 billion, insured losses arising from the storm also represent a record high. An unprecedented storm surge, of more than 8 m in places, led to breaching of the levees protecting New Orleans, causing flooding of 80 percent of the city, with water depths of up to 7m. Key lifelines were also destroyed or disrupted, including highways into and through New Orleans, bridges across the northern Gulf, and the Interstate 10 Twin Span Bridge, linking New Orleans and Slidell. Massive destruction was also caused by wind, not only due to velocities in excess of 230 km h, but also due to the great size of the storm. Peak force winds occurred across and area as wide as 55 km, while hurricane force winds extended out to distances of 140 km from the centre of the storm. In addition, Katrina produced 30 cm or more of rain in eastern Florida, and more than 20 cm across much of SE Louisiana and SW Mississippi. The storm also spawned 33 tornadoes in Florida, Mississippi, Alabama and Georgia. The death toll (as of December 2005) is set at 1,336, with most in Louisiana (1,090) and Mississippi (228). Most deaths were the result of the storm surge and subsequent flooding. Major damage was also caused by wind, which blew out the windows of high-rise buildings and peeled off part of the Superdome roof. The storm surge completely destroyed many communities along the Mississippi coastline, leaving little standing. Katrina had a major impact on the oil and gas industry, shutting down most offshore platforms and wells in a region that supplies 25 percent of the country’s domestic oil. Refining capacity, totalling 10 percent of the US total was also interrupted for varying lengths of time. 108 oil and gas platforms were destroyed and 53 seriously damaged. Over 300 spills poured around eight million gallons of oil into the Louisiana marshes. The storm suspended 95 percent of Gulf Oil production and 88 percent of offshore gas production. Deliveries of foreign oil to the Louisiana Offshore Oil Platform were also temporarily disrupted, while the state’s Port Fourchon refinery, which processes 18 percent of domestic oil and gas, and 13 percent of US energy imports, was also closed down due to wind and flood damage. A number of serious oil spills resulted from damage to oil and gas facilities, while oil prices rose worldwide in response to the shortages arising from the event. Floating casinos were also badly hit, with many destroyed or severely damaged, leading to huge losses in tax revenue for the state of Mississippi, which – in 2004 – were valued at US$2.4 billion. 1.2 million people were placed under evacuation order prior to the storm’s arrival, and tens of thousands remain displaced.
Summary:   Katrina developed as a tropical depression south-east of the Bahamas on August 23rd, strengthening as it moved westwards and achieving hurricane strength two days later. Katrina made landfall, close to Hallandale, SE Florida, on the 25th as a category 1 storm, with average wind speeds of 130 km h. After crossing the state and heading into the Gulf, very high sea surface temperatures led to the storm strengthening rapidly to category 5 by the 28th. On the 29th, Katrina made a second devastating landfall, this time as a category 4 storm, near Buras-Triumph in Louisiana, with wind speeds of 230 km h causing massive destruction and major loss of life. Katrina made a third landfall, this time as a category 3 storm with wind speeds of around 200 km h, near Waveland in Mississippi., before weakening as it headed inland towards Tennessee. At its height, a central pressure of 902 mb made Katrina the fourth most intense hurricane ever recorded.
Data sources:   NOAA Hurricane Katrina report
http://www.nhc.noaa.gov/pdf/TCR-AL122005_Katrina.pdf

Colorado State University summary of 2005 Atlantic tropical cyclone activity
http://hurricane.atmos.colostate.edu/Forecasts/2005/nov2005/

Additional sources:  

TSR Summary of 2005 Atlantic tropical cyclone season
http://forecast.mssl.ucl.ac.uk/docs/TSRATL2005Verification.pdf