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70-426: 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

140-480: A Category 4 hurricane that struck Galveston, Texas , drove a devastating surge ashore; between 6,000 and 12,000 people died, making it the deadliest natural disaster ever to strike the United States. The highest storm tide noted in historical accounts was produced by the 1899 Cyclone Mahina , estimated at almost 44 feet (13.41 m) at Bathurst Bay , Australia , but research published in 2000 concluded that

210-415: 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

280-519: A map of MOMs or Maximum of Maximums. For hurricane evacuation studies, a family of storms with representative tracks for the region, and varying intensity, eye diameter, and speed are modeled to produce worst-case water heights for any tropical cyclone occurrence. The results of these studies are typically generated from several thousand SLOSH runs. These studies have been completed by the United States Army Corps of Engineers , under contract to

350-439: A number of days as water was continually built-up inside the estuary from the onshore winds and freshwater rains flowing into the bay. In many locations, water levels were shy of records by only 0.1 feet (3 cm). Surge can be measured directly at coastal tidal stations as the difference between the forecast tide and the observed rise of water. Another method of measuring surge is by the deployment of pressure transducers along

420-449: A phenomenon referred to as wind setup , which is the tendency for water levels to increase at the downwind shore and to decrease at the upwind shore. Intuitively, this is caused by the storm blowing the water toward one side of the basin in the direction of its winds. Strong surface winds cause surface currents at a 45° angle to the wind direction, by an effect known as the Ekman spiral . Because

490-471: 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

560-475: 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,

630-474: A station provides a translation from the geodetic vertical datum to mean sea level (MSL) at that location, then subtracting the tidal prediction yields a surge height above the normal water height. The U.S. National Hurricane Center forecasts storm surge using the SLOSH model, which is an abbreviation for Sea, Lake and Overland Surges from Hurricanes. The model is accurate to within 20 percent. SLOSH inputs include

700-505: A storm surge. This was the case on the western Florida coast in 2017, just before Hurricane Irma made landfall, uncovering land usually underwater. This phenomenon is known as a reverse storm surge , or a negative storm surge . The deadliest storm surge on record was the 1970 Bhola cyclone , which killed up to 500,000 people in the area of the Bay of Bengal . The low-lying coast of the Bay of Bengal

770-418: A storm's wind-powered currents. Powerful wind whips up large, strong waves in the direction of its movement. Although these surface waves are responsible for very little water transport in open water, they may be responsible for significant transport near the shore. When waves are breaking on a line more or less parallel to the beach, they carry considerable water shoreward. As they break, the water moving toward

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840-572: 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

910-457: 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

980-430: Is another important element in storm surge extent. Areas, where the land lies less than a few meters above sea level, are at particular risk from storm surge inundation. The size of the storm also affects the surge height; this is due to the storm's area not being proportional to its perimeter. If a storm doubles in diameter, its perimeter also doubles, but its area quadruples. As there is proportionally less perimeter for

1050-482: 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

1120-416: Is defined as the rise of water beyond what would be expected by the normal movement caused by tides, storm surge is measured using tidal predictions, with the assumption that the tide prediction is well-known and only slowly varying in the region subject to the surge. Since tides are a localized phenomenon, storm surge can only be measured in relationship to a nearby tidal station. Tidal benchmark information at

1190-421: Is measured as the rise in water level above the normal tidal level, and does not include waves. The main meteorological factor contributing to a storm surge is high-speed wind pushing water towards the coast over a long fetch . Other factors affecting storm surge severity include the shallowness and orientation of the water body in the storm path, the timing of tides , and the atmospheric pressure drop due to

1260-666: Is particularly high, there are specific storm surge warnings. These have been implemented, for instance, in the Netherlands , Spain , the United States, and the United Kingdom . Similarly educating coastal communities and developing local evacuation plans can reduce the relative impact on people. A prophylactic method introduced after the North Sea flood of 1953 is the construction of dams and storm-surge barriers ( flood barriers ). They are open and allow free passage, but close when

1330-564: Is particularly vulnerable to surges caused by tropical cyclones. The deadliest storm surge in the twenty-first century was caused by Cyclone Nargis , which killed more than 138,000 people in Myanmar in May 2008. The next deadliest in this century was caused by Typhoon Haiyan (Yolanda), which killed more than 6,000 people in the central Philippines in 2013. and resulted in economic losses estimated at $ 14 billion (USD). The 1900 Galveston hurricane ,

1400-681: Is relatively steep and deep; storm surge is not as great but the waves are larger compared to the west coast of Florida. Conversely, on the Gulf side of Florida, the edge of the Floridian Plateau can lie more than 160 kilometres (99 mi) offshore. Florida Bay , lying between the Florida Keys and the mainland, is very shallow with depths between 0.3 m (0.98 ft) and 2 m (6.6 ft). These shallow areas are subject to higher storm surges with smaller waves. Other shallow areas include much of

1470-705: 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

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1540-400: 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

1610-579: The Coriolis effect , which bends currents to the right in the Northern Hemisphere and to the left in the Southern Hemisphere. When this bend brings the currents into more perpendicular contact with the shore, it can amplify the surge, and when it bends the current away from the shore it has the effect of lessening the surge. The effect of waves, while directly powered by the wind, is distinct from

1680-719: The Federal Emergency Management Agency (FEMA) , for several states and are available on their Hurricane Evacuation Studies (HES) website. They include coastal county maps, shaded to identify the minimum category of hurricane that will result in flooding, in each area of the county. Storm surge is responsible for significant property damage and loss of life as part of cyclones. Storm surge both destroys built infrastructure, like roads and undermines foundations and building structures. Unexpected flooding in estuaries and coastal areas can catch populations unprepared, causing loss of life. The deadliest storm surge on record

1750-445: The Gulf of Mexico coast, and the Bay of Bengal . The difference is due to how much flow area the storm surge can dissipate to. In deeper water, there is more area and a surge can be dispersed down and away from the hurricane. On a shallow, gently sloping shelf, the surge has less room to disperse and is driven ashore by the wind forces of the hurricane. The topography of the land surface

1820-761: 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

1890-583: 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

1960-727: 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

2030-465: 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

2100-526: The Atlantic Coast. Coasts with sea ice may experience an "ice tsunami" causing significant damage inland. Extratropical storm surges may be possible further south for the Gulf coast mostly during the wintertime, when extratropical cyclones affect the coast, such as in the 1993 Storm of the Century . November 9–13, 2009, marked a significant extratropical storm surge event on the United States east coast when

2170-547: 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

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2240-589: 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

2310-603: 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

2380-452: The Ekman spiral effects spread vertically through the water, the effect is proportional to depth. The surge will be driven into bays in the same way as the astronomical tide. The pressure effects of a tropical cyclone will cause the water level in the open ocean to rise in regions of low atmospheric pressure and fall in regions of high atmospheric pressure. The rising water level will counteract

2450-529: 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

2520-644: 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

2590-777: 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

2660-501: 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

2730-419: 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

2800-404: The central pressure of a tropical cyclone, storm size, the cyclone's forward motion, its track, and maximum sustained winds. Local topography, bay and river orientation, depth of the sea bottom, astronomical tides, as well as other physical features, are taken into account in a predefined grid referred to as a SLOSH basin. Overlapping SLOSH basins are defined for the southern and eastern coastline of

2870-434: The coastline just ahead of an approaching tropical cyclone. This was first tested for Hurricane Rita in 2005. These types of sensors can be placed in locations that will be submerged and can accurately measure the height of water above them. After surge from a cyclone has receded, teams of surveyors map high-water marks (HWM) on land, in a rigorous and detailed process that includes photographs and written descriptions of

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2940-628: The continental U.S. Some storm simulations use more than one SLOSH basin; for instance, Hurricane Katrina SLOSH model runs used both the Lake Pontchartrain / New Orleans basin, and the Mississippi Sound basin, for the northern Gulf of Mexico landfall. The final output from the model run will display the maximum envelope of water, or MEOW, that occurred at each location. To allow for track or forecast uncertainties, usually several model runs with varying input parameters are generated to create

3010-542: 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

3080-471: The evaluation, HWMs are divided into four categories based on the confidence in the mark; in the U.S., only HWMs evaluated as "excellent" are used by the National Hurricane Center in the post-storm analysis of the surge. Two different measures are used for storm tide and storm surge measurements. Storm tide is measured using a geodetic vertical datum ( NGVD 29 or NAVD 88 ). Since storm surge

3150-472: 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

3220-427: 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

3290-940: The land is under threat of a storm surge. Major storm surge barriers are the Oosterscheldekering and Maeslantkering in the Netherlands, which are part of the Delta Works project; the Thames Barrier protecting London ; and the Saint Petersburg Dam in Russia . Another modern development (in use in the Netherlands) is the creation of housing communities at the edges of wetlands with floating structures, restrained in position by vertical pylons. Such wetlands can then be used to accommodate runoff and surges without causing damage to

3360-438: The low atmospheric pressure such that the total pressure at some plane beneath the water surface remains constant. This effect is estimated at a 10 mm (0.39 in) increase in sea level for every millibar (hPa) drop in atmospheric pressure. For example, a major storm with a 100 millibar pressure drop would be expected to have a 1.0 m (3.3 ft) water level rise from the pressure effect. The Earth's rotation causes

3430-738: 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

3500-410: The majority of this likely was wave run-up because of the steep coastal topography. However, much of this storm surge was likely due to Mahina's extreme intensity, as computer modeling required an intensity of 880 millibars (26 inHg) (the same intensity as the lowest recorded pressure from the storm) to produce the recorded storm surge. In the United States, one of the greatest recorded storm surges

3570-503: 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,

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3640-415: The marks. HWMs denote the location and elevation of floodwaters from a storm event. When HWMs are analyzed, if the various components of the water height can be broken out so that the portion attributable to surge can be identified, then that mark can be classified as storm surge. Otherwise, it is classified as storm tide. HWMs on land are referenced to a vertical datum (a reference coordinate system). During

3710-473: 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

3780-475: 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. Storm surge A storm surge , storm flood , tidal surge , or storm tide is a coastal flood or tsunami -like phenomenon of rising water commonly associated with low-pressure weather systems, such as cyclones . It

3850-504: 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

3920-469: The remnants of Hurricane Ida developed into a nor'easter off the southeast U.S. coast. During the event, winds from the east were present along the northern periphery of the low-pressure center for a number of days, forcing water into locations such as Chesapeake Bay . Water levels rose significantly and remained as high as 8 feet (2.4 m) above normal in numerous locations throughout the Chesapeake for

3990-538: 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

4060-471: The shore has considerable momentum and may run up a sloping beach to an elevation above the mean water line, which may exceed twice the wave height before breaking. The rainfall effect is experienced predominantly in estuaries . Hurricanes may dump as much as 12 in (300 mm) of rainfall in 24 hours over large areas and higher rainfall densities in localized areas. As a result, surface runoff can quickly flood streams and rivers. This can increase

4130-452: The shoreline, tends to produce a lower surge but higher and more powerful waves. A wide shelf, with shallower water, tends to produce a higher storm surge with relatively smaller waves. For example, in Palm Beach on the southeast coast of Florida , the water depth reaches 91 metres (299 ft) 3 km (1.9 mi) offshore, and 180 m (590 ft) 7 km (4.3 mi) out. This

4200-477: 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

4270-561: The storm. As extreme weather becomes more intense and the sea level rises due to climate change , storm surges are expected to cause more risk to coastal populations. Communities and governments can adapt by building hard infrastructure, like surge barriers , soft infrastructure, like coastal dunes or mangroves , improving coastal construction practices and building social strategies such as early warning, education and evacuation plans. At least five processes can be involved in altering tide levels during storms. Wind stresses cause

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4340-523: The structures while also protecting conventional structures at somewhat higher low-lying elevations, provided that dikes prevent major surge intrusion. Other soft adaptation methods can include changing structures so that they are elevated to avoid flooding directly, or increasing natural protections like mangroves or dunes . For mainland areas, storm surge is more of a threat when the storm strikes land from seaward, rather than approaching from landward. Water can also be sucked away from shore prior to

4410-495: The surge to dissipate to, the surge height ends up being higher. Similar to tropical cyclones, extratropical cyclones cause an offshore rise of water. However, unlike most tropical cyclone storm surges, extratropical cyclones can cause higher water levels across a large area for longer periods of time, depending on the system. In North America, extratropical storm surges may occur on the Pacific and Alaska coasts, and north of 31°N on

4480-455: 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

4550-412: The water level near the head of tidal estuaries as storm-driven waters surging in from the ocean meet rainfall flowing downstream into the estuary. In addition to the above processes, storm surge and wave heights on shore are also affected by the flow of water over the underlying topography, i.e. the shape and depth of the ocean floor and coastal area. A narrow shelf , with deep water relatively close to

4620-520: 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

4690-629: 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

4760-547: 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

4830-413: 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

4900-401: Was the 1970 Bhola cyclone . Additionally, storm surge can cause or transform human-utilized land through other processes, hurting soil fertility , increasing saltwater intrusion , hurting wildlife habitat, and spreading chemical or other contaminants from human storage. Although meteorological surveys alert about hurricanes or severe storms, in the areas where the risk of coastal flooding

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