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Mobile Bay ( / m oʊ ˈ b iː l / moh- BEEL ) is a shallow inlet of the Gulf of Mexico , lying within the state of Alabama in the United States . Its mouth is formed by the Fort Morgan Peninsula on the eastern side and Dauphin Island , a barrier island on the western side. The Mobile River and Tensaw River empty into the northern end of the bay, making it an estuary . Several smaller rivers also empty into the bay: Dog River , Deer River, and Fowl River on the western side of the bay, and Fish River on the eastern side. Mobile Bay is the fourth-largest estuary in the United States with a discharge of 62,000 cubic feet (1,800 m) of water per second. Annually, and often several times during the summer months, the fish and crustaceans will swarm the shallow coastline and shore of the bay. This event, appropriately named a jubilee , draws a large crowd because of the abundance of fresh, easily caught seafood.

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109-426: Mobile Bay is 413 square miles (1,070 km) in area. It is 31 miles (50 km) long by a maximum width of 24 miles (39 km). The deepest areas of the bay are located within the shipping channel, sometimes in excess of 75 feet (23 m) deep, but the average depth of the bay is 10 feet (3 m). Long occupied by cultures of indigenous peoples, this area was still under the chiefs of Mississippian culture at

218-415: A base there in 1567 called Fort San Juan . Expedition documentation and archaeological evidence of the fort and Native American culture both exist. The soldiers were at the fort about 18 months (1567–1568) before the natives killed them and destroyed the fort. (They killed soldiers stationed at five other forts as well; only one man of 120 survived.) Sixteenth-century Spanish artifacts have been recovered from

327-550: A bottleneck at the Rigolets Pass, forcing it farther inland. The range of surge levels in eastern St. Tammany Parish is estimated at 13–16 feet (4.0–4.9 m), not including wave action. Hard-hit St. Bernard Parish was flooded because of breaching of the levees that contained a navigation channel called the Mississippi River Gulf Outlet (MR-GO) and the breach of the 40 Arpent canal levee that

436-660: A mandatory evacuation was ordered for vulnerable housing in Martin County . Shelters were opened across the region. Officials closed the Miami International Airport , Fort Lauderdale–Hollywood International Airport , Key West International Airport , and Florida Keys Marathon Airport due to the storm. In Monroe and Collier counties, schools were closed, and a shelter was opened in Immokalee . On August 28, Alabama Governor Bob Riley declared

545-436: A massive national and international response effort, including federal, local, and private rescue operations to evacuate those displaced from the city in the following weeks. After the storm, multiple investigations concluded that the U.S. Army Corps of Engineers , which had designed and built the region's levees decades earlier, was responsible for the failure of the flood-control systems. However, federal courts later ruled that

654-518: A news conference at 10 am. EDT on August 28, shortly after Katrina was upgraded to a Category 5 storm, New Orleans mayor Ray Nagin ordered the first-ever mandatory evacuation of the city, calling Katrina "a storm that most of us have long feared". The city government also established several "refuges of last resort" for citizens who could not leave the city, including the massive Louisiana Superdome , which sheltered approximately 26,000 people and provided them with food and water for several days as

763-522: A peninsula between the Back Bay and the coast, was particularly hard hit, especially the low-lying Point Cadet area. In Jackson County, storm surge flowed up the wide river estuary , with the combined surge and freshwater flooding cutting the county in half. Remarkably, over 90% of Pascagoula, the easternmost coastal city in Mississippi, and about 75 miles (120 km) east of Katrina's landfall near

872-482: A regional ceramic style in the southeast involving surface decorations applied with a carved wooden paddle. By the late 1960s, archaeological investigations had shown the similarity of the culture that produced the pottery and the midwestern Mississippian pattern defined in 1937 by the Midwestern Taxonomic System. In 1967, James B. Griffin coined South Appalachian Mississippian to describe

981-478: A result of Hurricane Katrina and two people died in a traffic accident in the state. Residents in some areas, such as Selma, were without power for several days. Northern and central Georgia were affected by heavy rains and strong winds from Hurricane Katrina as the storm moved inland, with more than 3 inches (76 mm) of rain falling in several areas. At least 18 tornadoes formed in Georgia on August 29, 2005,

1090-548: A result of Hurricane Katrina. Katrina's storm surge inundated all parishes surrounding Lake Pontchartrain, including St. Tammany , Tangipahoa, St. John the Baptist , and St. Charles Parishes. St. Tammany Parish received a two-part storm surge. The first surge came as Lake Pontchartrain rose and the storm blew water from the Gulf of Mexico into the lake. The second came as the eye of Katrina passed, westerly winds pushed water into

1199-483: A seaport has continued to the present day, though the commodities have changed through time. Cotton was the chief commodity in the nineteenth century. During the Second World War , Mobile's shipbuilding industry expanded, and the city's population surged as both black and white migrants moved there for work. Growth has been rapid since then. The city has endured several devastating hurricanes in its history,

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1308-415: A state of emergency for the approaching Hurricane Katrina. On the same day, he requested President Bush to declare "expedited major disaster declaration" for six counties of South Alabama, which was quickly approved. Three hundred fifty national guardsmen were called on duty by August 30. The state of Mississippi activated its National Guard on August 26 in preparation for the storm's landfall. Additionally,

1417-511: A state of emergency in selected regions of Louisiana, Alabama, and Mississippi on August 27. "On Sunday, August 28, President Bush spoke with Governor Blanco to encourage her to order a mandatory evacuation of New Orleans." However, during the testimony by former Federal Emergency Management Agency (FEMA) chief Michael Brown before a U.S. House subcommittee on September 26, Representative Stephen Buyer (R-IN) inquired as to why Bush's declaration of state of emergency of August 27 had not included

1526-630: A strong Category 3 hurricane. Although the storm surge to the east of the path of the eye in Mississippi was higher, a significant surge affected the Louisiana coast. The height of the surge is uncertain because of a lack of data, although a tide gauge in Plaquemines Parish indicated a storm tide in excess of 14 feet (4.3 m), and a 12-foot (3.7 m) storm surge was recorded in Grand Isle . The hurricane made its final landfall near

1635-585: A tool or ally in long-standing native feuds. In one example, de Soto negotiated a truce between the Pacaha and the Casqui . De Soto's later encounters left about half of the Spaniards and perhaps many hundreds of Native Americans dead. The chronicles of de Soto are among the first documents written about Mississippian peoples and are an invaluable source of information on their cultural practices. The chronicles of

1744-457: A variety of functions. Villages with single platform mounds were more typical of the river valley settlements throughout the mountainous area of southwest North and South Carolina and southeastern Tennessee that were known as the historic Cherokee homelands. In Western North Carolina for example, some 50 such mound sites in the eleven westernmost counties have been identified since the late 20th century, following increased research in this area of

1853-500: Is almost impossible to determine the exact cause of some of the fatalities. A 2008 report by the Disaster Medicine and Public Health Preparedness journal indicates that 966 deaths can be directly attributed to the storm in Louisiana, including out of state evacuees, and another 20 indirectly (such as firearm-related deaths and gas poisoning). Due to uncertain causes of death with 454 evacuees, an upper-bound of 1,440

1962-432: Is believed that the peoples of this area adopted Mississippian traits from their northwestern neighbors. Typical settlements were located on riverine floodplains and included villages with defensive palisades enclosing platform mounds and residential areas. Etowah and Ocmulgee in Georgia are both prominent examples of major South Appalachian Mississippian settlements. Both include multiple large earthwork mounds serving

2071-689: Is noted in the paper. A follow-up study by the Louisiana Department of Health & Hospitals determined that the storm was directly responsible for 1,170 fatalities in Louisiana. Federal disaster declarations covered 90,000 square miles (230,000 km ) of the United States, an area almost as large as the United Kingdom. The hurricane left an estimated three million people without electricity. On September 3, 2005, Homeland Security Secretary Michael Chertoff described

2180-710: Is the chronological stage, while Mississippian culture refers to the cultural similarities that characterize this society. The term Middle Mississippian is also used to describe the core of the classic Mississippian culture area. This area covers the central Mississippi River Valley, the lower Ohio River Valley, and most of the Mid-South area, including western and central Kentucky, western Tennessee, and northern Alabama and Mississippi. Sites in this area often contain large ceremonial platform mounds, residential complexes and are often encircled by earthen ditches and ramparts or palisades . Middle Mississippian cultures, especially

2289-400: Is usually divided into three or more chronological periods. Each period is an arbitrary historical distinction varying regionally. At a particular site, each period may be considered to begin earlier or later, depending on the speed of adoption or development of given Mississippian traits. The "Mississippian period" should not be confused with the "Mississippian culture". The Mississippian period

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2398-519: The Gulf of Mexico on August 26 and rapidly intensified . The storm strengthened into a Category 5 hurricane over the warm waters of the Gulf of Mexico before weakening to a high-end Category 3 hurricane at its second landfall on August 29 over southeast Louisiana and Mississippi . The largest loss of life in Hurricane Katrina was due to flooding caused by engineering flaws in

2507-730: The Hasinai , Kadohadacho , and Natchitoches , which were all linked by their similar languages. The Plaquemine culture was an archaeological culture in the lower Mississippi River Valley in western Mississippi and eastern Louisiana . Good examples of this culture are the Medora site (the type site for the culture and period) in West Baton Rouge Parish, Louisiana , and the Anna , Emerald Mound , Winterville and Holly Bluff sites located in Mississippi. Plaquemine culture

2616-605: The Jubilee Parkway , and US 90 / US 98 , known as the Battleship Parkway . These two bridges serve as the primary connections between the city of Mobile and the Eastern Shore. On warm summer nights, the residents living around Mobile Bay sometimes enjoy the fruits of a mysterious natural phenomenon called a Jubilee , when fish and crabs swarm toward shore and can be easily harvested by people wading in

2725-539: The Lesser Antilles . On August 23, the disturbance organized into Tropical Depression Twelve over the southeastern Bahamas. The storm strengthened into Tropical Storm Katrina on the morning of August 24. The tropical storm moved towards Florida and became a hurricane only two hours before making landfall between Hallandale Beach and Aventura on the morning of August 25. The storm weakened over land, but it regained hurricane status about one hour after entering

2834-504: The Loop Current , from a Category 3 hurricane to a Category 5 hurricane in just nine hours. After attaining Category 5 hurricane status on the morning of August 28, Katrina reached its peak strength at 1800 UTC , with maximum sustained winds of 175 mph (280 km/h) and a minimum central pressure of 902  mbar (26.6  inHg ). The pressure measurement made Katrina the fifth most intense Atlantic hurricane on record at

2943-701: The Miami metropolitan area , with a peak total of 16.43 in (417 mm) in Perrine . As a result, local flooding occurred in Miami-Dade County , damaging approximately 100 homes. Farther south in the Florida Keys, a tornado was spawned in Marathon on August 26. The tornado damaged a hangar at the airport there and caused an estimated $ 5 million in damage. The rains caused flooding, and

3052-753: The Narváez expedition were written before the de Soto expedition; the Narváez expedition informed the Court of de Soto about the New World. After the destruction and flight of the de Soto expedition, the Mississippian peoples continued their way of life with little direct European influence. Indirectly, however, European introductions dramatically changed these native societies. Because the natives lacked immunity to infectious diseases unknowingly carried by

3161-540: The United States Coast Guard (USCG), National Hurricane Center (NHC), and National Weather Service (NWS), were commended for their actions, with the NHC being particularly praised for its accurate forecasts well in advance. Katrina was the earliest 11th named storm on record before being surpassed by Tropical Storm Kyle on August 14, 2020. The destruction and loss of life caused by the storm prompted

3270-472: The battleship USS  Alabama was pushed off her moorings, leaving her listing to port (tilted to the left). Downtown Mobile was flooded several feet, and the south-end towns of Bayou La Batre and Bon Secour were severely damaged. Dozens of vessels of various sizes were left stranded inland. The city of Mobile is situated at the head of the bay on the western shore. On the Eastern Shore of

3379-549: The federally built levee system protecting metro New Orleans and the failure of the 40 Arpent Canal levee. Failures occurred in New Orleans and surrounding communities, especially St. Bernard Parish. The Mississippi River Gulf Outlet (MR-GO) breached its levees in approximately 20 places, flooding much of eastern New Orleans, most of St. Bernard Parish and the East Bank of Plaquemines Parish . The major levee breaches in

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3488-657: The Bay St. Louis–Pass Christian bridge, and the Biloxi– Ocean Springs bridge. In addition, the eastbound span of the I-10 bridge over the Pascagoula River estuary was damaged. In the weeks after the storm, with the connectivity of the coastal U.S. Highway 90 shattered, traffic traveling parallel to the coast was reduced first to State Road 11 (parallel to I-10) then to two lanes on the remaining I-10 span when it

3597-561: The Cahokia polity located near East St. Louis, Illinois , were very influential on neighboring societies. High-status artifacts, including stone statuary and elite pottery associated with Cahokia, have been found far outside of the Middle Mississippian area. These items, especially the pottery, were also copied by local artists. The term South Appalachian Province was originally used by W. H. Holmes in 1903 to describe

3706-598: The Cherokee homeland. The Caddoan Mississippian area, a regional variant of the Mississippian culture, covered a large territory, including what is now eastern Oklahoma , western Arkansas , northeastern Texas , and northwestern Louisiana . Archaeological evidence has led to a scholarly consensus that the cultural continuity is unbroken from prehistory to the present, and that the Caddo and related Caddo language speakers in prehistoric times and at first European contact are

3815-636: The Cochrane Bridge just outside Mobile. No significant damage resulted to the bridge and it was soon reopened. The damage on Dauphin Island was severe, with the surge destroying many houses and cutting a new canal through the western portion of the island. An offshore oil rig also became grounded on the island. As in Mississippi, the storm surge caused significant beach erosion along the Alabama coastline. More than 600,000 people lost power in Alabama as

3924-619: The Confederacy. On August 5, 1864, Admiral David Farragut led a Union flotilla through Confederate defenses and sealed off one of the last major Southern ports of the bay in the Battle of Mobile Bay . A number of Civil War-era shipwrecks remain in Mobile Bay, including American Diver , CSS Gaines , CSS Huntsville , USS Philippi , CSS Phoenix , USS Rodolph , USS Tecumseh , and CSS Tuscaloosa . Mobile's role as

4033-714: The Corps could not be held financially liable due to sovereign immunity in the Flood Control Act of 1928 . The emergency response from federal, state, and local governments was widely criticized, leading to the resignation of Federal Emergency Management Agency (FEMA) director Michael D. Brown and New Orleans Police Department (NOPD) Superintendent Eddie Compass . Many other government officials faced criticism for their responses, especially New Orleans Mayor Ray Nagin , Louisiana Governor Kathleen Blanco , and President George W. Bush . However, several agencies, such as

4142-540: The Europeans, such as measles and smallpox , epidemics caused so many fatalities that they undermined the social order of many chiefdoms. Some groups adopted European horses and changed to nomadism . Political structures collapsed in many places. At Joara , near Morganton, North Carolina , Native Americans of the Mississippian culture interacted with Spanish colonizers of the Juan Pardo expedition, who built

4251-576: The Gulf Coast had been shut down, including all freight and Amtrak rail traffic into the evacuation areas as well as the Waterford Nuclear Generating Station . Since Hurricane Katrina, Amtrak's Sunset Limited service has never been restored past New Orleans. In Louisiana, the state's hurricane evacuation plan calls for local governments in areas along and near the coast to evacuate in three phases, starting with

4360-597: The Gulf Coast were covered under a voluntary or mandatory evacuation order. On the afternoon of August 26, the National Hurricane Center (NHC) realized that Katrina had yet to make the turn toward the Florida Panhandle and ended up revising the predicted track of the storm from the panhandle to the Mississippi coast. The National Weather Service's New Orleans/Baton Rouge office issued a vividly worded bulletin on August 28 predicting that

4469-469: The Gulf of Mexico, and it continued strengthening over open waters. On August 27, the storm reached Category 3 intensity on the Saffir-Simpson hurricane wind scale , becoming the third major hurricane of the season. An eyewall replacement cycle disrupted the intensification but caused the storm to nearly double in size. Thereafter, Katrina rapidly intensified over the "unusually warm" waters of

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4578-827: The I-10 Twin Span Bridge traveling eastbound towards Slidell, Louisiana had collapsed. Both the Lake Pontchartrain Causeway and the Crescent City Connection only carried emergency traffic. However, access to downtown New Orleans and the "shelter of last resort" at the Convention Center was never closed because River Road in Jefferson Parish and Leake Avenue and Tchoupitoulas Street in New Orleans were not flooded, and would have allowed access throughout

4687-640: The Louisiana-Mississippi border was flooded from storm surge at the height of the storm. Other large Jackson County neighborhoods such as Porteaux Bay and Gulf Hills were severely damaged with large portions being completely destroyed, and St. Martin was hard hit; Ocean Springs, Moss Point , Gautier and Escatawpa also suffered major surge damage. Mississippi Emergency Management Agency officials also recorded deaths in Forrest , Hinds , Warren , and Leake counties. Over 900,000 people throughout

4796-799: The Miami area. Cruise ships altered their paths due to seaports in southeastern Florida closing. Officials in Miami-Dade County advised residents in mobile homes or with special needs to evacuate. To the north in Broward County, residents east of the Intracoastal Waterway or in mobile homes were advised to leave their homes. Evacuation orders were issued for offshore islands in Palm Beach County , and for residents in mobile homes south of Lantana Road. Additionally,

4905-584: The New Orleans region prior to the mandatory evacuation. Aircrews from the Aviation Training Center, in Mobile, staged rescue aircraft from Texas to Florida. All aircraft were returning towards the Gulf of Mexico by the afternoon of August 29. Aircrews , many of whom lost their homes during the hurricane, began a round-the-clock rescue effort in New Orleans, and along the Mississippi and Alabama coastlines. President George W. Bush declared

5014-583: The Superdome, only six deaths were confirmed there, with four of these originating from natural causes , one from a drug overdose, and one a suicide. At the Convention Center, four bodies were recovered. One of the four is believed to be the result of a homicide. There is evidence that many prisoners were abandoned in their cells during the storm, while the guards sought shelter. Hundreds of prisoners were later registered as "unaccounted for". The Gulf coast of Mississippi suffered extremely severe damage from

5123-526: The U.S. Dept. of Housing and Urban Development, in St. Bernard Parish, 81% (20,229) of the housing units were damaged. In St. Tammany Parish, 70% (48,792) were damaged and in Plaquemines Parish 80% (7,212) were damaged. In addition, the combined effect of Hurricanes Katrina and Rita was the destruction of an estimated 562 square kilometres (217 sq mi) of coastal wetlands in Louisiana. As

5232-614: The United States. The death toll from Katrina is uncertain, with reports differing by hundreds. According to the National Hurricane Center, 1,836 fatalities can be attributed to the storm: one in Kentucky , two each in Alabama, Georgia , and Ohio , 14 in Florida, 238 in Mississippi, and 1,577 in Louisiana. However, 135 people remain categorized as missing in Louisiana, and many of the deaths are indirect, but it

5341-518: The aftermath of Hurricane Katrina as "probably the worst catastrophe or set of catastrophes" in the country's history, referring to the hurricane itself plus the flooding of New Orleans. Even in 2010, debris remained in some coastal communities. Before striking South Florida, Katrina traversed the Bahamas as a tropical storm. However, minimal impact was reported, with only "fresh breezes" on various islands. Although Hurricane Katrina stayed well to

5450-463: The airport on September 13 and regular carrier operations resumed in early October. Levee breaches in New Orleans also caused a significant number of deaths, with over 700 bodies recovered in New Orleans by October 23, 2005. Some survivors and evacuees reported seeing dead bodies lying in city streets and floating in still-flooded sections, especially in the east of the city. The advanced state of decomposition of many corpses, some of which were left in

5559-613: The area had been sporadic, in 1702 French colonists created a deep-sea port at Dauphin Island and founded French Louisiana 's capital at Mobile , a few miles north of Mobile Bay on the Mobile River . Following a series of floods, the original settlement of Fort Louis de la Mobile was relocated in 1711 to the head of Mobile Bay. During the American Civil War Mobile Bay was used as a major port for blockade runners bringing in badly needed supplies for

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5668-463: The area would be "uninhabitable for weeks" after "devastating damage" caused by Katrina, which at that time rivaled the intensity of Hurricane Camille . During video conferences involving the president later that day and on August 29, NHC director Max Mayfield expressed concern that Katrina might push its storm surge over the city's levees and flood walls. In one conference, he stated, "I do not think anyone can tell you with confidence right now whether

5777-784: The area), with notable exceptions being Natchez communities. These maintained Mississippian cultural practices into the 18th century. A number of cultural traits are recognized as being characteristic of the Mississippians. Although not all Mississippian peoples practiced all of the following activities, they were distinct from their ancestors in the adoption of some or all of these traits. The Mississippians had no writing system or stone architecture. They worked naturally occurring metal deposits, such as hammering and annealing copper for ritual objects such as Mississippian copper plates and other decorations, but did not smelt iron or practice bronze metallurgy . The Mississippian stage

5886-507: The bay are found several small communities, including Spanish Fort , Daphne , Fairhope , Point Clear , and Bon Secour . The town of Gulf Shores lies just outside the bay, on the Fort Morgan peninsula, while the town of Fort Morgan is located directly south of the bay. The Middle Bay Lighthouse has been located in the center of the bay since 1885. The head of the bay is crossed by two major thoroughfares, Interstate 10 , known as

5995-419: The bridge to Dauphin Island. On August 28–29, 2005, Hurricane Katrina pushed a massive storm surge into Mobile Bay; it measured 16 feet (4.9 m) high at Bayou La Batre (Alabama), with higher waves on top, and 12 feet (3.7 m) high at Mobile, at the far northern end of the 31-mile-long Mobile Bay. Thousands of boats, piers, and beach houses were damaged by waves exceeding 22 feet (6.7 m) high, and

6104-541: The center and the storm's central pressure was 920 mbar (27 inHg). After moving over southeastern Louisiana and Breton Sound , it made its third and final landfall near the Louisiana–Mississippi border with 120 mph (190 km/h) sustained winds, still at a mid-range Category 3 hurricane intensity. Katrina maintained strength well into Mississippi, finally losing hurricane strength more than 150 miles (240 km) inland near Meridian, Mississippi . It

6213-527: The city included breaches at the 17th Street Canal levee, the London Avenue Canal , and the wide, navigable Industrial Canal , which left approximately 80% of the city flooded. Most of the major roads traveling into and out of the city were damaged. The only major intact highway routes out of the city were the westbound Crescent City Connection and the Huey P. Long Bridge, as large portions of

6322-476: The city of New Orleans and its surrounding area. It is tied with Hurricane Harvey as being the costliest tropical cyclone in the Atlantic basin . 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. Katrina formed on August 23, 2005, with

6431-418: The city. A June 2007 report by the American Society of Civil Engineers indicated that two-thirds of the flooding was caused by the multiple failures of the city's floodwalls. The storm surge also devastated the coasts of Mississippi and Alabama, making Katrina one of the most destructive hurricanes, the costliest natural disaster in the history of the United States (tied with Hurricane Harvey in 2017), and

6540-432: The coastal communities of Clermont Harbor and Waveland, much of Bay St. Louis, and flowed up the Jourdan River, flooding Diamondhead and Kiln . In Harrison County, Pass Christian was completely inundated, along with a narrow strip of land to the east along the coast, which includes the cities of Long Beach and Gulfport; the flooding was more extensive in communities such as D'Iberville, which borders Back Bay. Biloxi , on

6649-410: The coastal parishes of Orleans, Jefferson, and Plaquemines. The declaration actually did not include any of Louisiana's coastal parishes, whereas the coastal counties were included in the declarations for Mississippi and Alabama . Brown testified that this was because Louisiana Governor Blanco had not included those parishes in her initial request for aid, a decision that he found "shocking". After

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6758-420: The combination of rains and winds downed trees and power lines, leaving 1.45 million people without power. Damage in South Florida was estimated at $ 523 million, mostly as a result of crop damage. Twelve deaths occurred in South Florida, of which three were caused by downed trees in Broward County, three from drowning in Miami-Dade County, three were from carbon monoxide poisoning caused by generators, one

6867-401: The computer models had shifted the potential path of Katrina 150 miles (240 km) westward from the Florida Panhandle, putting the city of New Orleans directly in the center of their track probabilities; the chances of a direct hit were forecast at 17%, with strike probability rising to 29% by August 28. This scenario was considered a potential catastrophe because some parts of New Orleans and

6976-438: The deadliest hurricane since the 1928 Okeechobee hurricane . The total damage from Katrina is estimated at $ 125 billion (2005 U.S. dollars). However, in February 2021, a severe winter storm struck the United States, causing a major power failure in Houston, which caused at least $ 195 billion (2021 USD) in damage in Texas. It surpassed both Katrina and Harvey to become the single-costliest natural disaster recorded in

7085-427: The direct ancestors of the modern Caddo Nation of Oklahoma . The climate in this area was drier than areas in the eastern woodlands, hindering maize production, and the lower population on the plains to the west may have meant fewer neighboring competing chiefdoms to contend with. Major sites such as Spiro and the Battle Mound Site are in the Arkansas River and Red River Valleys, the largest and most fertile of

7194-420: The evolving understanding of the peoples of the Southeast. South Appalachian Mississippian area sites are distributed across a contiguous area including Alabama, Georgia, northern Florida, South Carolina, central and western North Carolina, and Tennessee. Chronologically this area became influenced by Mississippian culture later than the Middle Mississippian area (about 1000 as compared to 800) to its northwest. It

7303-444: The eye of Hurricane Katrina swept to the northeast, it subjected the city to hurricane conditions for hours. Although power failures prevented accurate measurement of wind speeds in New Orleans, there were a few measurements of hurricane-force winds; based on this information, the NHC concluded that much of the city likely experienced sustained winds of Category 1 or 2 hurricane strength. Katrina's storm surge caused 53 levee breaches in

7412-457: The flood protection system, particularly the levees around the city of New Orleans. 80% of the city, as well as large areas in neighboring parishes , were flooded for weeks. The flooding destroyed most of New Orleans's transportation and communication facilities, leaving tens of thousands of people who did or could not evacuate the city before landfall with little access to food, shelter, and other necessities. The disaster in New Orleans prompted

7521-427: The fortified town of Mauvila , also spelled Maubila, from which the name Mobile was later derived. It was a town of the paramount Chief Tuscaloosa , located in inland Alabama, well to the north of the current site of Mobile. The next large expedition was that of Tristán de Luna y Arellano , in his unsuccessful attempt to establish a permanent colony for Spain nearby at Pensacola in 1559. Although Spain's presence in

7630-435: The hearing, Blanco released a copy of her letter, which showed she had requested assistance for "all the southeastern parishes including the City of New Orleans" as well as specifically named 14 parishes, including Jefferson, Orleans, St. Bernard, and Plaquemines. Voluntary and mandatory evacuations were issued for large areas of southeast Louisiana as well as coastal Mississippi and Alabama. About 1.2 million residents of

7739-494: The hotel's glass exterior was completely sheared off. The Superdome , which was sheltering many people who had not evacuated, sustained significant damage. Two sections of the Superdome's roof were compromised and the dome's waterproof membrane was essentially peeled off. Louis Armstrong New Orleans International Airport was closed before the storm but did not flood. On August 30, it was reopened to humanitarian and rescue operations. Limited commercial passenger service resumed at

7848-967: The immediate coast 50 hours before the start of tropical-storm-force winds. Persons in areas designated Phase II begin evacuating 40 hours before the onset of tropical storm winds and those in Phase III areas (including New Orleans) evacuate 30 hours before the start of such winds. Many private caregiving facilities that relied on bus companies and ambulance services for evacuation were unable to evacuate their charges because they waited too long. Louisiana's Emergency Operations Plan Supplement 1C (Part II, Section II, Paragraph D) calls for use of school and other public buses in evacuations. Although buses that later flooded were available to transport those dependent on public transportation, not enough bus drivers were available to drive them since Governor Blanco did not sign an emergency waiver to allow any licensed driver to transport evacuees on school buses. By August 26, many of

7957-483: The immediate post-storm emergency period. On August 29, at 7:40 am. CDT, it was reported that most of the windows on the north side of the Hyatt Regency New Orleans had been blown out, and many other high rise buildings had extensive window damage. The Hyatt was the most severely damaged hotel in the city, with beds reported to be flying out of the windows. Insulation tubes were exposed as

8066-441: The impact of Hurricane Katrina on August 29, leaving 238 people dead, 67 missing, and billions of dollars in damage: bridges, barges, boats, piers, houses, and cars were washed inland. Katrina traveled up the entire state; as a result, all 82 counties in Mississippi were declared disaster areas for federal assistance, 47 for full assistance. After making a brief initial landfall in Louisiana, Katrina had made its final landfall near

8175-468: The levees will be topped or not, but that's obviously a very, very great concern." In Florida, Governor Jeb Bush declared a state of emergency on August 24 in advance of Hurricane Katrina's landfall. By the following day, Florida's Emergency Operations Center was activated in Tallahassee to monitor the progress of the hurricane. Before Katrina moved ashore, schools and businesses were closed in

8284-750: The majority of the American Indian nations living in this region when European trade began. The historic and modern day American Indian nations believed to have descended from the overarching Mississippian culture include: the Alabama , Apalachee , Arikara , Caddo , Chickasaw , Catawba , Choctaw , Muscogee Creek , Guale , Hitchiti , Ho-Chunk , Houma , Iowa , Kansa , Koroas , Missouria , Mobilian , Natchez , Omaha , Osage (possibly), Otoe , Pawnee , Ponca , Quapaw (possibly), Seminole (broad origins), Taensas , Tunicas , Yamasee , Yazoos , and Yuchi . Scholars have studied

8393-464: The majority of the state. Katrina caused eleven tornadoes in Mississippi on August 29, some of which damaged trees and power lines. Battered by wind, rain and storm surge, some beachfront neighborhoods were completely leveled. Preliminary estimates by Mississippi officials calculated that 90% of the structures within half a mile of the coastline were completely destroyed, and that storm surges traveled as much as 6 miles (10 km) inland in portions of

8502-512: The many Caddoan languages . These languages once had a broad geographic distribution, but many are now extinct. The modern languages in the Caddoan family include Caddo and Pawnee . Hernando de Soto led an expedition into the area in the early 1540s, he encountered several native groups now thought to have been Caddoan. Composed of many tribes, the Caddo were organized into three confederacies,

8611-399: The merger of a tropical wave and the remnants of Tropical Depression Ten . Early the following day, the depression intensified into a tropical storm and headed generally westward toward Florida. On August 25, two hours before making landfall at Hallandale Beach , it strengthened into a hurricane. After briefly weakening to tropical storm strength over southern Florida, Katrina entered

8720-399: The metro area are below sea level. Since the storm surge produced by the hurricane's right-front quadrant (containing the strongest winds) was forecast to be 28 feet (8.5 m), while the levees offered protection to 23 feet (7.0 m), emergency management officials in New Orleans feared that the storm surge could go over the tops of levees protecting the city, causing major flooding. At

8829-515: The most on record in that state for one day in August. The most serious of these tornadoes was an F2 tornado which affected Heard County and Carroll County . This tornado caused three injuries and one fatality and damaged several houses. The other tornadoes caused significant damages to buildings and agricultural facilities. In addition to the fatality caused by the F2 tornado, there was another fatality in

8938-473: The most recent being Hurricane Frederic in 1979 and Hurricane Katrina in 2005. Areas of low elevation, including the downtown business district, have been flooded repeatedly in hurricanes. However, much of the city is at an elevation exceeding 200 feet (61 m) above sea level, which is unusually high for the Gulf and Atlantic coasts. On September 13, 1979, Hurricane Frederic entered the bay with winds reaching 145 miles per hour (233 km/h), destroying

9047-466: The mounds dotting the landscape. This contributed to the myth of the Mound Builders as a people distinct from Native Americans, which was rigorously debunked by Cyrus Thomas in 1894. Hurricane Katrina Hurricane Katrina was a powerful and devastating tropical cyclone that caused 1,392 fatalities and damages estimated at $ 125 billion in late August 2005, particularly in

9156-487: The mouth of the Pearl River , with the eye straddling St. Tammany Parish, Louisiana , and Hancock County, Mississippi , on the morning of August 29 at about 9:45 am. CDT. Hurricane Katrina also brought heavy rain to Louisiana, with 8–10 inches (200–250 mm) falling on a wide swath of the eastern part of the state. In the area around Slidell , the rainfall was even higher, and the highest rainfall recorded in

9265-630: The name Katrina to be retired by the World Meteorological Organization in April 2006. On January 4, 2023, the National Hurricane Center (NHC) updated the Katrina fatality data based on a report by Rappaport (2014) which reduced the number from an estimated 1,833 to 1,392. Hurricane Katrina originated from the merger of a tropical wave and the mid-level remnants of Tropical Depression Ten on August 19, 2005, near

9374-571: The north of Cuba , on August 28 it brought tropical-storm-force winds and rainfall of over 8 in (200 mm) to western regions of the island. Telephone and power lines were damaged and around 8,000 people were evacuated in the Pinar del Río Province . According to Cuban television reports the coastal town of Surgidero de Batabanó was 90% underwater. Hurricane Katrina first made landfall between Hallandale Beach and Aventura, Florida on August 25. The storm dropped heavy rainfall in portions of

9483-634: The northwestern portion of the state, though none of them caused significant damage. Throughout the Florida Panhandle, the storm resulted in an estimated $ 100 million in damage. There were two indirect fatalities from Katrina in Walton County as a result of a traffic accident. In the Florida Panhandle, 77,000 customers lost power. Overall, the hurricane killed 14 people and caused at least $ 623 million in damage. On August 29, 2005, Hurricane Katrina made landfall near Buras-Triumph, Louisiana , with 125 mph (200 km/h) winds, as

9592-566: The records of Hernando de Soto 's expedition of 1539–1543 to learn of his contacts with Mississippians, as he traveled through their villages of the Southeast. He visited many villages, in some cases staying for a month or longer. The list of sites and peoples visited by the Hernando de Soto Expedition chronicles those villages. Some encounters were violent, while others were relatively peaceful. In some cases, de Soto seems to have been used as

9701-544: The shallows. 30°26′34″N 88°00′33″W  /  30.44278°N 88.00917°W  / 30.44278; -88.00917 Mississippian culture The Mississippian culture were collections of Native American societies that flourished in what is now the Midwestern , Eastern , and Southeastern United States from approximately 800 to 1600, varying regionally. It was known for building large, earthen platform mounds , and often other shaped mounds as well. It

9810-477: The site, marking the first European colonization in the interior of what became the United States. By the time more documentary accounts were being written, the Mississippian way of life had changed irrevocably. Some groups maintained an oral tradition link to their mound-building past, such as the late 19th-century Cherokee . Other Native American groups, having migrated many hundreds of miles and lost their elders to diseases, did not know their ancestors had built

9919-457: The state experienced power outages. Although Hurricane Katrina made landfall well to the west, Alabama and the Florida Panhandle were both affected by tropical-storm-force winds and a storm surge varying from 12 to 16 feet (3.7–4.9 m) around Mobile Bay , with higher waves on top. Sustained winds of 67 mph (108 km/h) were recorded in Mobile, Alabama , and the storm surge there

10028-479: The state government activated its Emergency Operations Center the next day, and local governments began issuing evacuation orders. By 6:00 p.m. CDT on August 28, 11 counties and cities issued evacuation orders, a number which increased to 41 counties and 61 cities by the following morning. Moreover, 57 emergency shelters were established on coastal communities, with 31 additional shelters available to open if needed. By Sunday, August 28, most infrastructure along

10137-446: The state line, and the eyewall passed over the cities of Bay St. Louis and Waveland as a Category 3 hurricane with sustained winds of 120 mph (190 km/h). Katrina's powerful right-front quadrant passed over the west and central Mississippi coast, causing a powerful 27-foot (8.2 m) storm surge, which penetrated 6 miles (10 km) inland in many areas and up to 12 miles (19 km) inland along bays and rivers; in some areas,

10246-476: The state was approximately 15 inches (380 mm). As a result of the rainfall and storm surge the level of Lake Pontchartrain rose and caused significant flooding along its northeastern shore, affecting communities from Slidell to Mandeville . Several bridges were destroyed, including the I-10 Twin Span Bridge connecting Slidell to New Orleans. Almost 900,000 people in Louisiana lost power as

10355-515: The state's coast. One apartment complex with approximately thirty residents seeking shelter inside collapsed. More than half of the 13 casinos in the state, which were floated on barges to comply with Mississippi land-based gambling laws, were washed hundreds of yards inland by waves. A number of streets and bridges were washed away. On U.S. Highway 90 along the Mississippi Gulf Coast, two major bridges were completely destroyed:

10464-484: The storm came ashore. Some estimates claimed that 80% of the 1.3 million residents of the greater New Orleans metropolitan area evacuated, leaving behind substantially fewer people than remained in the city during the Hurricane Ivan evacuation. On August 29, 2005, Katrina's storm surge caused 53 breaches to various flood protection structures in and around the greater New Orleans area, submerging 80% of

10573-614: The surge crossed Interstate 10 for several miles. Hurricane Katrina brought strong winds to Mississippi, which caused significant tree damage throughout the state. The highest unofficial reported wind gust recorded from Katrina was one of 135 mph (217 km/h) in Poplarville , in Pearl River County . The storm also brought heavy rains with 8–10 inches (200–250 mm) falling in southwestern Mississippi and rain in excess of 4 inches (100 mm) falling throughout

10682-461: The time of Hernando de Soto 's exploration. The recorded history of Mobile Bay begins about 1500, when Spanish explorers were sailing into the area. On early maps, the bay was named as Bahía del Espíritu Santo (Bay of the Holy Spirit). The area was explored in more detail in 1516 by Diego Miruelo and in 1519 by Alonso Álvarez de Pineda . In 1528, Pánfilo de Narváez travelled through what

10791-546: The time, only to be surpassed by Hurricanes Rita and Wilma later in the season; it was also the strongest hurricane ever recorded in the Gulf of Mexico at the time, before Rita broke the record. The hurricane subsequently weakened due to another eyewall replacement cycle, and Katrina made its second landfall at 1110 UTC on August 29, as a high-end Category 3 hurricane with sustained winds of 125 mph (201 km/h), near Buras-Triumph, Louisiana . At landfall, hurricane-force winds extended outward 120 miles (190 km) from

10900-689: The water or sun for days before being collected, hindered efforts by coroners to identify many of the dead. The first deaths reported from the city were reported shortly before midnight on August 28, as three nursing home patients died during an evacuation to Baton Rouge , most likely from dehydration. An estimated 215 bodies were found in nursing homes and hospitals in New Orleans, the largest number being at Memorial Medical Center where 45 corpses were recovered. Some 200 patients at Charity Hospital were not evacuated until Friday, September 2, having been without power or fresh water for five days. While there were also early reports of fatalities amid mayhem at

11009-525: The waterways in the Caddoan region, where maize agriculture would have been the most productive. The sites generally lacked wooden palisade fortifications often found in the major Middle Mississippian towns. Living on the western edge of the Mississippian world, the Caddoans may have faced fewer military threats from their neighbors. Their societies may also have had a somewhat lower level of social stratification . The Caddoan people were speakers of one of

11118-482: Was approximately 12 feet (3.7 m). The surge caused significant flooding several miles inland along Mobile Bay. Four tornadoes were also reported in Alabama. Ships, oil rigs, boats and fishing piers were washed ashore along Mobile Bay: the cargo ship M/V Caribbean Clipper and many fishing boats were grounded at Bayou La Batre . An oil rig under construction along the Mobile River broke its moorings and floated 1.5 miles (2.4 km) northwards before striking

11227-639: Was composed of a series of urban settlements and satellite villages linked together by loose trading networks. The largest city was Cahokia , believed to be a major religious center, located in what is present-day southern Illinois . The Mississippian way of life began to develop in the Mississippi River Valley (for which it is named). Cultures in the tributary Tennessee River Valley may have also begun to develop Mississippian characteristics at this point. Almost all dated Mississippian sites predate 1539–1540 (when Hernando de Soto explored

11336-557: Was contemporaneous with the Middle Mississippian culture at the Cahokia site near St. Louis , Missouri. It is considered ancestral to the Natchez and Taensa Peoples. Although the Mississippian culture was heavily disrupted before a complete understanding of the political landscape was written down, many Mississippian political bodies were documented and others have been discovered by research. Mississippian peoples were ancestral to

11445-472: Was designed and built by the Orleans Levee Board . The search for the missing was undertaken by the St. Bernard Fire Department because of the assets of the United States Coast Guard being diverted to New Orleans. In the months after the storm, many of the missing were tracked down by searching flooded homes, tracking credit card records, and visiting homes of family and relatives. According to

11554-454: Was downgraded to a tropical depression near Clarksville, Tennessee ; its remnants were absorbed by a cold front in the eastern Great Lakes region on August 31. The resulting extratropical storm moved rapidly to the northeast and affected eastern Canada. The United States Coast Guard began pre-positioning resources in a ring around the expected impact zone and activated more than 400 reservists. On August 27, it moved its personnel out of

11663-544: Was due to a vehicle accident, one occurred during debris cleanup, and one was associated with a lack of electricity. Significant impacts were also reported in the Florida Panhandle . Although Katrina moved ashore in Louisiana and Mississippi, its outer periphery produced a 5.37 ft (1.64 m) storm surge in Pensacola . High waves caused beach erosion and closed nearby roadways. There were five tornadoes in

11772-413: Was likely the Mobile Bay area, encountering Native Americans who fled and burned their towns at the approach of the expedition. This response was a prelude to the journeys of Hernando de Soto, more than eleven years later. Hernando de Soto explored the area of Mobile Bay and beyond in 1540, finding the area inhabited by indigenous Mississippian culture people. During this expedition his forces destroyed

11881-433: Was opened. All three coastal counties of the state were severely affected by the storm. Katrina's surge was the most extensive, as well as the highest, in the documented history of the United States; large portions of Hancock , Harrison , and Jackson counties were inundated by the storm surge, in all three cases affecting most of the populated areas. Surge covered almost the entire lower half of Hancock County, destroying

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