This article covers the details of the Preparations for Hurricane Katrina, a major category 5 hurricane that devastated parts of New Orleans, Florida, Louisiana, Mississippi, and Alabama.
Many living in the area were caught off guard when Katrina strengthened from a tropical storm to a hurricane in one day and struck southern Florida on August 25, 2005. National Hurricane Center (NHC) forecasts had correctly predicted the strengthening, however, and hurricane watches and warnings were properly issued nearly 6–8 days, respectively, before hurricane conditions were felt in the area. Many people living in the South Florida area were unaware when Katrina strengthened from a tropical storm to a hurricane in one day and struck southern Florida near the Miami-Dade – Broward county line. The hurricane struck between the cities of Aventura, in Miami-Dade County, and Hallandale, in Broward County, on Thursday, August 25, 2005. However, National Hurricane Center (NHC) forecasts had correctly predicted that Katrina would intensify to hurricane strength before landfall, and hurricane watches and warnings were issued 31.5 hours and 19.5 hours before landfall, respectively — only slightly less than the target thresholds for many days..
Florida Governor Jeb Bush declared a state of emergency on August 24 in advance of Hurricane Katrina's landfall in Florida. Shelters were opened and schools closed in several counties in the southern part of the state. A number of evacuation orders were also issued, mostly voluntary, although a mandatory evacuation was ordered for vulnerable housing in Martin County.
On August 27, after Hurricane Katrina crossed southern Florida and strengthened to a Category 3 storm, President George W. Bush declared a state of emergency in Louisiana, Alabama, and Mississippi two days before the hurricane made landfall.