Hurricane Katrina

Hurricane Katrina in 2005 was the deadliest storm to hit the United States in almost 70 years.

Weather Underground
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The National Oceanic and Atmospheric Administration has updated its hurricane outlook for 2011, anticipating more hurricanes this year than they originally forecast at the beginning of the season in June. 

Dr. Gerry Bell, the lead hurricane season forecaster at the National Weather Service, predicts that this will be the 12th most active season in the last 17 years. Take a look back at some of the most dangerous storms in history; below are the 10 deadliest hurricanes on record, according to the National Weather Service.

1. Great Galveston Hurricane, Texas - 1900 - Category 4 - 8,000 deaths

2. Lake Okeechobee, Florida - 1938 - Category 4 - 2,500 deaths

3. Katrina, LA/MS/FL/GA/AL - 2005 - Category 3 - 1,833 deaths

4. Cheniere Caminanda, Louisiana - 1893 - Category 4 - 1,100-1,400 deaths

5. Sea Islands, SC/GA - 1893 - Category 3 - 1,000-2,000 deaths

6. GA/SC - 1881 - Category 2 - 700 deaths

7. Great Labor Day Hurricane, Florida Keys - 1935 - Category 5 - 408

8. Last Island, Louisiana - 1856 - Category 4 - 400

9. Audrey, SW LA/N TX - 1957 - Category 4 - 390

10. Grand Isle, Louisana - 1909 - Category 4 - 350

To find out what you need to do to prepare for a hurricane or any natural disaster, visit ready.gov.

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