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How long did hurricane Katrina last?

Answer:
Hurricane Katrina formed on August 23, 2005 and dissipated on August 31 of the same year. It began as Tropical Storm Twelve of the season and caused billions of dollars in damage to become the costliest storm in Atlantic hurricane history.
5 days 2 hours
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First answer by ID2791761765. Last edit by Winkydinky930. Contributor trust: 2 [recommend contributor recommended]. Question popularity: 27 [recommend question].