Hurricane Katrina was a devastating Category 5 Atlantic hurricane that caused 1,836 fatalities and damage estimated between $97.4 billion to $145.5 billion in late August 2005, particularly in the city of New Orleans and its surrounding area. At the time, it was the costliest tropical cyclone on record, later tied by Hurricane Harvey of 2017. Katrina was the twelfth tropical cyclone, the fifth hurricane, and the third major hurricane of the 2005 Atlantic hurricane season. It was also the fourth-most intense Atlantic hurricane to make landfall in the contiguous United States, gauged by barometric pressure.
As the center of Hurricane Katrina passed southeast of New Orleans on August 29, 2005, winds downtown were in the Category 1 range with frequent intense gusts. The storm surge caused approximately 23 breaches in the drainage canal and navigational canal levees and flood walls. As mandated in the Flood Control Act of 1965, responsibility for the design and construction of the city's levees belongs to the United States Army Corps of Engineers and responsibility for their maintenance belongs to the Orleans Levee Board. The failures of levees and flood walls during Katrina are considered by experts to be the worst engineering disaster in the history of the United States. By August 31, 2005, 80% of New Orleans was flooded, with some parts under 15 feet (4.6 m) of water. The famous French Quarter and Garden District escaped flooding because those areas are above sea level. The major breaches included the 17th Street Canal levee, the Industrial Canal levee, and the London Avenue Canal flood wall. These breaches caused the majority of the flooding, according to a June 2007 report by the American Society of Civil Engineers. The flood disaster halted oil production and refining which increased oil prices worldwide.
The article covers the Hurricane Katrina effects by region, within the United States and Canada. The effects of Hurricane Katrina, in late August 2005, were catastrophic and widespread. It was one of the deadliest natural disasters in U.S. history, leaving at least 1,836 people dead, and a further 135 missing. The storm was large and had an effect on several different areas of North America.
Criticism of the government response to Hurricane Katrina was a major political dispute in the United States in 2005 that consisted primarily of condemnations of mismanagement and lack of preparation in the relief effort in response to Hurricane Katrina and its aftermath. Specifically, there was a delayed response to the flooding of New Orleans, Louisiana.
The disaster recovery response to Hurricane Katrina in late 2005 included U.S. federal government agencies such as the Federal Emergency Management Agency (FEMA), the United States Coast Guard (USCG), state and local-level agencies, federal and National Guard soldiers, non-governmental organizations, charities, and private individuals. Tens of thousands of volunteers and troops responded or were deployed to the disaster; most in the affected area but also throughout the U.S. at shelters set up in at least 19 states.
Hurricane Katrina had many social effects, due the significant loss and disruption of lives it caused. The number of fatalities, direct and indirect, related to Katrina is 1,833 and over 400,000 people were left homeless. The hurricane left hundreds of thousands of people without access to their homes or jobs, it separated people from relatives, and caused both physical and mental distress on those who suffered through the storm and its aftermath, such as Post-traumatic stress disorder (PTSD).
This article contains a historical timeline of the events of Hurricane Katrina' on August 23–30, 2005 and its aftermath.
Hurricane Katrina struck the United States on August 29, 2005, causing over a thousand deaths and extreme property damage, particularly in New Orleans. The incident affected numerous areas of governance, including disaster preparedness and environmental policy.
Hurricane Rita was the most intense tropical cyclone on record in the Gulf of Mexico and the fourth-most intense Atlantic hurricane ever recorded. Part of the record-breaking 2005 Atlantic hurricane season, which included three of the top ten most intense Atlantic hurricanes in terms of barometric pressure ever recorded, Rita was the seventeenth named storm, tenth hurricane, and fifth major hurricane of the 2005 season. It was also the earliest-forming 17th named storm in the Atlantic until Tropical Storm Rene in 2020. Rita formed near The Bahamas from a tropical wave on September 18, 2005 that originally developed off the coast of West Africa. It moved westward, and after passing through the Florida Straits, Rita entered an environment of abnormally warm waters. Moving west-northwest, it rapidly intensified to reach peak winds of 180 mph (285 km/h), achieving Category 5 status on September 21. However, it weakened to a Category 3 hurricane before making landfall in Johnson's Bayou, Louisiana, between Sabine Pass, Texas and Holly Beach, Louisiana, with winds of 115 mph (185 km/h). Rapidly weakening over land, Rita degenerated into a large low-pressure area over the lower Mississippi Valley by September 26th.
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, as well as the Hurricane Pam simulation and NWS forecasts that led to the U.S. government's decision to establish a Bipartisan Congressional Committee to investigate the country's preparedness for and response to Hurricane Katrina.
The Pets Evacuation and Transportation Standards Act (PETS) was a bi-partisan initiative in the United States House of Representatives to require states seeking Federal Emergency Management Agency (FEMA) assistance to accommodate pets and service animals in their plans for evacuating residents facing disasters. Introduced by Congressmen Tom Lantos (D-California) and Christopher Shays (R-Connecticut) on September 22, 2005, the bill passed the House of Representatives on May 22, 2006, by a margin of 349 to 29. Technically an amendment to the Stafford Act, it was signed into law by President George W. Bush on October 6, 2006. The bill is now Public Law 109-308.
The Louisiana Superdome was used as a "shelter of last resort" for those in New Orleans unable to evacuate from the city when Hurricane Katrina struck on August 29, 2005.
Hurricane Gustav was the second most destructive hurricane of the 2008 Atlantic hurricane season. The seventh tropical cyclone, third hurricane, and second major hurricane of the season, Gustav caused serious damage and casualties in Haiti, the Dominican Republic, Jamaica, the Cayman Islands, Cuba and the United States. Gustav caused at least $8.31 billion (2008 USD) in damages.
The effects of Hurricane Georges in Louisiana included $30.1 million in damage and three deaths. Forming from a tropical wave over the Atlantic Ocean, Georges attained a peak intensity of 155 mph (249 km/h) on September 20, 1998. Over the following several days, the storm tracked through the Greater Antilles and later entered the Gulf of Mexico on September 28, the Category 2 storm made landfall in Mississippi before dissipating on October 1. Before landfall, about 500,000 residents in Louisiana evacuated from low-lying areas. The mayor of New Orleans declared a state of emergency to allow federal assistance into the state. After nearly 1.5 million people were urged to evacuate coastal areas, officials described the evacuation as "probably the largest [...] we have ever achieved".
Hurricane evacuation is the immediate and rapid movement of people away from the threat or actual occurrence of a hurricane. County judges, emergency managers and other officials may recommend a voluntary evacuation or order a mandatory evacuation.
Hurricane Barry was an asymmetrical Category 1 hurricane that was the wettest tropical cyclone on record in Arkansas and the fourth-wettest in Louisiana. The second tropical or subtropical storm and first hurricane of the 2019 Atlantic hurricane season, Barry originated as a mesoscale convective vortex over southwestern Kansas on July 2. The system eventually emerged into the Gulf of Mexico from the Florida Panhandle on July 10, whereupon the National Hurricane Center (NHC) designated it as a potential tropical cyclone. Early on July 11, the system developed into a tropical depression, and strengthened into a tropical storm later that day. Dry air and wind shear caused most of the convection, or thunderstorms, to be displaced south of the center. Nevertheless, Barry gradually intensified. On July 13, Barry attained its peak intensity as Category 1 hurricane with 1-minute sustained winds of 75 mph (120 km/h) and a minimum central pressure of 993 millibars (29.3 inHg). At 15:00 UTC, Barry made its first landfall at Marsh Island, and another landfall in Intracoastal City, Louisiana, both times as a Category 1 hurricane. Barry quickly weakened after landfall, falling to tropical depression status on July 15. The storm finally degenerated into a remnant low over northern Arkansas on the same day, subsequently opening up into a trough on July 16. The storm's remnants persisted for another few days, while continuing its eastward motion, before being absorbed into another frontal storm to the south of Nova Scotia on July 19.
Hurricane Hanna was the first of a record-tying six Atlantic hurricanes to make landfall in the United States in one year. The eighth named storm and first hurricane of the extremely active 2020 Atlantic hurricane season, Hanna developed from a tropical wave originating near Hispaniola. This disturbance dropped heavy rain upon parts of Hispaniola, Cuba, and Florida. The wave gradually became more organized and developed into a tropical depression in the central portion of the Gulf of Mexico. The depression strengthened into a tropical storm on July 24, setting a new record for the earliest eighth-named storm in the basin, getting its name 10 calendar days before the previous record holder, Tropical Storm Harvey of 2005. Hanna steadily intensified as it drifted toward Southern Texas, becoming the season's first hurricane early on July 25. It then began to quickly strengthen just before making landfall at 22:00 UTC later that day as a high-end Category 1 hurricane, with maximum sustained winds of 90 mph (140 km/h) and a minimum central pressure of 973 mbar. Hanna weakened quickly as it moved inland and turned west-southwest, eventually dissipating over Mexico on July 26.
Hurricane Sally was a destructive and slow-moving Atlantic hurricane that was the first hurricane to make landfall in the U.S. state of Alabama since Ivan in 2004, coincidentally on the same date in the same place. The eighteenth named storm and seventh hurricane of the extremely active 2020 Atlantic hurricane season, Sally developed from an area of disturbed weather which was first monitored over the Bahamas on September 10. The system grew a broad area of low-pressure on September 11, and was designated as a tropical depression late that day. Early the next day, the depression made landfall at Key Biscayne and subsequently strengthened into Tropical Storm Sally that afternoon. Moderate northwesterly shear prevented significant intensification for the first two days, but convection continued to grow towards the center and Sally slowly intensified. On September 14, a center reformation into the center of the convection occurred, and data from a hurricane hunter reconnaissance aircraft showed that Sally had rapidly intensified into a strong Category 1 hurricane. However, an increase in wind shear and upwelling of colder waters halted the intensification and Sally weakened slightly on September 15 before turning slowly northeastward. Despite this increase in wind shear, it unexpectedly re-intensified, reaching Category 2 status early on September 16 before making landfall at peak intensity at 09:45 UTC on September 16, near Gulf Shores, Alabama, with maximum sustained winds of 110 mph (180 km/h) and a minimum central pressure of 965 millibars (28.5 inHg). The storm rapidly weakened after landfall before transitioning into an extratropical low at 12:00 UTC the next day. Sally's remnants lasted for another day as they moved off the coast of the Southeastern United States before being absorbed into another extratropical storm on September 18.
Hurricane Delta was the record-tying fourth named storm of 2020 to make landfall in Louisiana, as well as the record-breaking tenth named storm to strike the United States in that year. The twenty-sixth tropical cyclone, twenty-fifth named storm, tenth hurricane, and third major hurricane of the record-breaking 2020 Atlantic hurricane season, Delta formed from a tropical wave which was first monitored by the National Hurricane Center (NHC) on October 1. Moving westward, the tropical wave began to quickly organize. A well-defined center of circulation formed with sufficiently organized deep convection on October 4, and was designated as Tropical Depression Twenty-six and soon thereafter, Tropical Storm Delta. Extremely rapid intensification ensued throughout October 5 into October 6, with Delta becoming a Category 4 hurricane within 28 hours of attaining tropical storm status. The rate of intensification was the fastest in the Atlantic basin since Hurricane Wilma in 2005. After peaking in intensity however, an unexpected increase in wind shear and dry air quickly weakened the small storm before it made landfall in Puerto Morelos, Mexico as a Category 2 hurricane with 105 mph (169 km/h) winds. It weakened some more over land before emerging into the Gulf of Mexico, where it was downgraded to a Category 1 hurricane. After that, it began to restrengthen, regaining Category 3 status late on October 8. It then turned northward and reached a secondary peak intensity of 953 mbar (28.14 inHg) and winds of 120 mph early on October 9. Delta then began to turn more north-northeastward into an area of cooler waters, higher wind shear, and dry air, causing it to weaken back to Category 2 status. Delta then made landfall at 23:00 UTC near Creole, Louisiana with winds of 100 mph (160 km/h) and a pressure of 970 mbar (29 inHg). The storm began to weaken more rapidly after landfall, becoming post-tropical just 22 hours later.
The approach of Hurricane Rita towards the United States Gulf Coast in September 2005 triggered one of the largest mass evacuations in U.S. history. Between 2.5 and 3.7 million people evacuated from the Gulf coast, mostly from the Greater Houston area of Texas, with forecasts from the National Hurricane Center projecting Rita to strike the Texas Gulf Coast. Seeking to avoid a repeat of the devastation caused by Hurricane Katrina in parts of Louisiana and Mississippi less than a month prior, local officials began issuing evacuation orders on September 21 before the issuance of hurricane watches and warnings. Although evacuation orders anticipated smaller numbers of evacuees, uncertainties in projections of Rita's path and the fresh memory of Katrina's aftermath led many to evacuate, including from otherwise safe areas outside the scope of evacuation orders; approximately two-thirds of evacuees were not required to evacuate. The unexpectedly large scale of the evacuation overwhelmed Texas highways, producing widespread gridlock that was exacerbated by the implementation of previously unplanned contraflow on Interstates 10 and 45 while the evacuation was ongoing. Most traffic associated with the evacuation was clear of the threatened coastal areas by the early morning of September 23.
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