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Hurricane Andrew

Hurricane Andrew was the most destructive hurricane to ever hit Florida in terms of structures damaged or destroyed, and remained the costliest in financial terms until Hurricane Irma surpassed it 25 years later. Andrew was also the strongest hurricane to make landfall in the United States in decades and the costliest hurricane to strike anywhere in the country, until it was surpassed by Hurricane Katrina in 2005.

Meteorological history
On August 14, a tropical wave moved off the west coast of Africa. A ridge of high pressure to its north caused the wave to move quickly westward. An area of convection developed along the wave axis to the south of the Cape Verde islands, and on August 15, meteorologists began classifying the system using the Dvorak technique. The thunderstorm activity became more concentrated, and narrow spiral rainbands began to develop around a center of circulation. It is estimated that Tropical Depression Three developed late on August 16, about east-southeast of Barbados. Embedded within the deep easterlies, the depression tracked west-northwestward at . Initially, moderate wind shear prevented strengthening, until a decrease in shear allowed the depression to intensify into a tropical storm, which the National Hurricane Center named Andrew at 12:00 UTC on August 17. Shortly thereafter, the storm began to lose velocity due to increased southwesterly wind shear from an upper-level low. and on the following day, a flight found that the cyclone had degenerated to the extent that only a diffuse low-level circulation center remained; observations indicated the barometric pressure rose to an unusually high . The flight indicated that Andrew maintained a vigorous circulation aloft. After the upper-level low weakened and split into a trough, the wind shear decreased over the storm. A strong high pressure system then developed over the southeastern United States, which built eastward and caused Andrew to turn to the west. An eye formed, and Andrew attained hurricane status early on August 22, about east-southeast of Nassau, Bahamas. This underestimated both the strength and the speed of the storm, which would eventually make landfall in South Florida. Despite its intensity, Andrew was a small tropical cyclone, with winds of extending out only about from the center. After reaching that intensity, the hurricane underwent an eyewall replacement cycle. At 21:00 UTC on August 23, Andrew made landfall on Eleuthera as a Category 5 hurricane, with winds of . As the eye moved onshore in Florida, the convection in the eyewall strengthened due to increased convergence, and Hurricane Hunters reported a warmer eyewall temperature than two hours prior. However, Andrew weakened as it continued further inland, and after crossing southern Florida in four hours, the storm emerged into the Gulf of Mexico with winds of . Andrew steadily re-intensified over the Gulf of Mexico, reaching winds of late on August 25. Post-analysis on Andrew revealed that the storm was often stronger than operationally reported between early on August 22 and early on August 26. In real time, the National Hurricane Center assessed its peak intensity as , which was upgraded to in a post-storm analysis after the season ended. However, a 2004 paper by Christopher Landsea and others concluded that Andrew became a Category 5 hurricane near the Bahamas on August 23 and reached maximum sustained winds of . The paper also indicated that Andrew briefly re-intensified into a Category 5 hurricane around the time of landfall in South Florida early on August 24. The storm was found to have been slightly stronger than originally assessed while approaching Louisiana, but the landfall winds were decreased from . == Preparations ==
Preparations
Bahamas At 1500 UTC on August 22, about 30 hours prior to landfall, the government of the Bahamas issued a hurricane watch for the northwest Bahamas, including Andros and Eleuthera islands, northward through Grand Bahama and Great Abaco. Six hours later, the watch was upgraded to a hurricane warning, and about 15 hours before landfall a hurricane warning was issued for the central Bahamas, including Cat Island, Exuma, San Salvador Island, and Long Island. All watches and warnings were discontinued on August 24. A total of 58 shelters were opened at churches, government buildings, and schools. Before the hurricane passed through the Bahamas, forecasters predicted a storm surge of up to , as well as up to of rain. In a subsequent analysis by Arthur Rolle, the Bahamas Chief Meteorological Officer, national emergency agencies including the Red Cross and the Royal Bahamas Defence Force "responded exceptionally well to the hurricane alerts." The same report cited the public "[exhibiting] a degree of complacency, particularly in New Providence and The Current, Eleuthera." Rainfall was projected to be between along the path of the storm. In addition, the National Hurricane Center noted the likelihood of isolated tornadoes in Central and South Florida during the passage of Andrew on August 23 and 24. Several tropical storm and hurricane warnings were issued for much of Central and South Florida, from Titusville on the east coast to Venice on the west coast. Included in the warnings were Lake Okeechobee and all of the Florida Keys. By 18:00 UTC on August 24, all watches and warnings issued were discontinued after Andrew progressed into the Gulf of Mexico. In Dade County alone, 515,670 people were ordered to evacuate. As Andrew was approaching, an estimated 20,000–30,000 tourists were in the Florida Keys (Monroe County). Overall, almost 1.2 million people evacuated, which contributed to the low number of fatalities, despite the intensity of the storm. Government offices and public and private schools were closed from Monroe County northward to St. Lucie County. Many colleges and universities in southeast Florida also closed. Major airports such as the Fort Lauderdale–Hollywood, Officials in Mississippi suggested that about 100,000 people evacuate the coastal counties. Shelters were opened in Hancock and Harrison counties, though only 68 people went to a shelter in the former. A mandatory evacuation from Grand Isle was ordered by Mayor Andy Valence and the city council. In New Orleans, Mayor Sidney Barthelemy ordered the evacuation of about 200,000 residents in the low-lying areas of the city. Nine shelters were opened in the city, which were occupied by thousands of people. School was canceled on August 25 for Beaumont, Port Arthur, and other areas of central Jefferson County, Emergency management crews in Corpus Christi began testing emergency generators and severe weather gear. The Comal County chapter of the Red Cross placed their disaster alert teams on standby and ready to respond if the hurricane threatened the Corpus Christi area. ==Impact==
Impact
Even though Andrew was a small tropical cyclone for most of its lifespan, it caused extreme damage, especially in the Bahamas, Florida, and Louisiana. The vast majority of the damage was as a result of extremely high winds, although a few tornadoes spawned by Andrew caused considerable damage in Louisiana. Throughout the areas affected, almost 177,000 people were left homeless. Outside of The Bahamas, Florida, and Louisiana, effects were widespread, although damage was minimal. Overall, $27.3 billion in losses and 65 fatalities were attributed to Andrew, Andrew was, at the time, the costliest hurricane in U.S. history. Bahamas Hurricane Andrew brought maximum sustained winds of over to five districtsNorth Eleuthera, New Providence, North Andros, Bimini, Berry Islands – as well as three cays. The storm first struck North Eleuthera, The hurricane also produced tropical storm force winds in seven districts, including Cat Island, South Abaco, Central Andros, the northern island chain in Exuma, and the three districts on Grand Bahama. At the capital city of Nassau, sustained winds reached , while gusts up to were reported. A total of 800 houses were destroyed, leaving 1,700 people homeless. Additionally, five schools were destroyed, and overall the storm left severe damage to the sectors of transport, communications, water, sanitation, agriculture, and fishing. and is generally about in width. Prior to its arrival, the hurricane caused the coastline to recede about , which was followed by what was described as a "mighty wall of water", or a storm surge. The Current, a small village in the northwestern portion of the island, recorded a surge of . Towns south of where Andrew moved ashore received fairly minor damage, although the control tower at Governor's Harbour Airport was destroyed. High surf caused damage to roads and docks along the coast. On New Providence, the hurricane destroyed one house, The Lynden Pindling International Airport near Nassau recorded of precipitation during the passage of Andrew. The private island of Cat Cay in the Bimini Islands was severely impacted by the hurricane, with damage estimated at $100 million (1992 USD). Many wealthy homes and the island's marina received heavy damage, with hundreds of trees downed by the strong winds. Some estimates in Florida put the damage as high as $34 billion (1992 USD, $  USD). Almost all of the damage in Florida was caused by strong winds, rather than storm surge or flooding that is usually associated with a major hurricane. Of the 44 deaths attributed to the storm, 15 were direct fatalities, while 29 were indirectly caused by the storm. It was later noted that if Andrew had been slightly larger or made landfall a few miles further north, it would have significantly affected Miami and Fort Lauderdale, which would have resulted in an even higher damage and death toll. Some officials in Florida considered Andrew the worst storm in the state since the 1935 Labor Day hurricane. But most others, particularly the media and former National Hurricane Center director Max Mayfield, in retrospect stated that Andrew was hardly "The Big One", though still very devastating. The storm surge from Andrew was very limited in its overall coverage due the compactness of the hurricane, At the height of the storm, more than 1.4 million people lost electricity and another 150,000 were without telephone service. It is estimated that throughout Florida, the storm damaged 101,241 homes and destroyed approximately 63,000 others – the vast majority in Dade County – with about 175,000 people rendered homeless. Smaller tropical cyclones like Andrew or Charley tend to produce less overall coverages and damage from the storm surge, in contrast to hurricanes such as Hugo, Ike, Ivan, and Katrina. In addition to homes, the storm damaged or destroyed 82,000 businesses, of farmland, 31 public schools, 59 health facilities/hospitals, 9,500 traffic signals, of power lines, and 3,000 watermains. Tides were generally between above normal in the Biscayne Bay area, though near the Burger King International Headquarters, tides reached as high as above normal. Storm surge on the west coast was widespread but generally light, with a peak height of in Everglades City and Goodland. Strong winds from the storm were confined to a relatively small area, stretching from Key Largo to the Miami Beach area. A house near Perrine initially reported a wind gust of before the structure and instrument were destroyed; this measurement was reduced to , after wind-tunnel testing at the Virginia Polytechnic Institute and State University of the same type of anemometer revealed a 16.5% error. Several other anemometers measuring the highest wind speeds on land were destroyed or failed. At the National Hurricane Center building in Coral Gables, sustained winds of and gusts to were measured before the anemometer failed. The highest sustained wind speed for the storm was , recorded at the Turkey Point Nuclear Generating Station, before instruments also failed there. In Key Largo, a 13-minute wind speed of was reported. Tropical storm force winds reached as far north as West Palm Beach. On the west coast of Florida, sustained winds remained just below tropical storm force on Marco Island, though a wind gust of was reported in Collier County. Rainfall was generally light, possibly as a result of the storm's relatively fast movement. Damage to the base was extensive enough that it was recommended for closure. Nearby, in the small town of Florida City, over 120 homes were demolished and 700 others were damaged, while a number of other buildings were damaged beyond repair, including City Hall. Further north, damage to poorly constructed homes in communities such as Country Walk and Saga Bay resembled that of an F3 tornado. Winds in the area were estimated to have ranged from , slightly below the threshold for an F3 tornado. Four of the five condominiums at Naranja Lakes were destroyed. More than 50 streets were blocked by fallen trees and power lines. Agriculture suffered extensively as well, with an 85% loss to fruit crops such as avocados, limes, and mangoes. Crop damage in Dade County totaled about $509 million. The county suffered the vast majority of the damage from the hurricane, totaling approximately $25 billion. Andrew left at least 40 deaths in the county, 15 direct and 25 indirect. Property damage reached about $100 million and three fatalities were reported in Broward County. In addition to the damage at Everglades National Park, effects in Monroe County were significant, especially in the Upper Florida Keys. Strong winds damaged billboards, awnings, commercial signs, several boats, planes, trees, and 1,500 homes, with 300 of those becoming uninhabitable. Storm surge flooded low-lying areas, particularly in Goodland, Everglades City, and Marco Island. Many boats were damaged or destroyed by the rough seas and strong winds. The storm destroyed 80 mobile homes and severely damaged 400 others. Property damage in the county reached about $30 million. Collectively, 14 tornadoes were reported in the parishes of Ascension, Iberville, Pointe Coupee, and Avoyelles, as well as in Baton Rouge. Houses in Berwick, Morgan City, and Patterson suffered major damage. Throughout the parish, 1,367 dwellings were destroyed, 2,028 were severely damaged, and 4,770 others were impacted to a minor degree. Property damage alone in St. Mary Parish reached approximately $150 million. Iberia Parish was also among the most severely impacted parishes. Two schools collectively sheltering about 3,600 people in Jeanerette and New Iberia lost their roofs. One death occurred in the parish due to electrocution. A total of 407 residences were demolished, 2,528 others were extensively damaged, and 3,526 others were inflicted with minor damage. Overall, the parish suffered $125 million in property damage, while an additional $200 million in damage was inflicted on sugar crops. A total of 17 deaths occurred in Louisiana, 8 directly and 9 from indirect causes. Remainder of the United States While Andrew was entering the Gulf of Mexico, oil companies evacuated hundreds of employees from offshore drilling platforms. The storm damaged 241 oil and gas facilities and toppled 33 platforms off the coast of Louisiana, causing significant disruptions in production. Additionally, 83 pipeline segments suffered damage to some degree. The oil industry lost about $12 million per day in the days following Andrew and $4 million daily by three weeks later. Overall, Hurricane Andrew caused about $500 million in damage to oil facilities. along with 26 tornadoes. Structural damage was generally minimal, occurring from the tornadoes and severe thunderstorms. One tornado in Kemper County destroyed a mobile home, while another twister in Lauderdale County demolished a mobile home, damaged five other dwellings, and injured four people. Additionally, a possible tornado damaged a home and two trailers in Lawrence County. with a peak of at Sumrall. Flooding was mostly limited to the inundation of minor roads and low-lying areas in several counties. Along Dauphin Island, high tides left severe beach erosion, with portions of the island losing up to of sand. Three damaging tornadoes occurred in the state. The most damaging tornado was spawned in Elmore County and moved from an area northeast of Montgomery to the south of Wetumpka and briefly lifted during its track. The tornado destroyed 2 homes and damaged 18 homes, 1 mobile home, 2 barns, and 1 vehicle. One person was injured by the twister. Sustained winds in the state were below tropical storm force, though a wind gust of was observed in Huntsville. Although 48 counties in Alabama reported wind damage, impact across the state was generally minor. Tropical storm force wind gusts and damaging tornadoes extended eastward into Georgia. Several counties in the northwest and west-central portions of the state reported downed trees and tree limbs and fallen power lines, causing scattered power outages, but structural damage was generally minor. In Carroll County, several dwellings and barns were damaged, with one mobile home destroyed. At the Columbus Metropolitan Airport, buildings, billboards, and signs were damaged. Additionally, a tornado in Floyd County near Rome snapped and uprooted several trees, damaged several fences and homes, and flipped over a trailer, tossing it on top of four cars. Monetary losses in the state reached about $100,000. In Tennessee, thunderstorm winds and tornadoes associated with Andrew downed trees and power lines, but caused little overall impact to homes and buildings. Similarly, in North Carolina, thunderstorm winds toppled trees and power lines at a number of locations in the mountainous areas of the state, especially in Avery County. Rainfall from Andrew spread across the southeastern United States along the Appalachian Mountains corridor; totals of over were reported where Georgia and South Carolina meet North Carolina. In West Virginia, the remnants of Andrew combined with a cold front to produce of rain over portions of the state, causing flooding in areas of Morgantown with poor drainage. The remnants of Andrew also spawned several tornadoes in Maryland. A tornado in Howard County damaged several homes, some extensively. The twister also tossed and wrecked a recreational vehicle and its trailer, downed trees, and flattened cornfields. Precipitation continued along the path of Andrew's remnants through the Mid-Atlantic and Ohio Valley, with precipitation measured as far north as Upstate New York. ==Aftermath==
Aftermath
Bahamas Initially, the Bahamas National Disaster Coordinator believed that foreign aid was not required, but shortly after the storm, the Government of the United Kingdom began distributing blankets, food, ice, and water. , a Royal Navy Type 42 destroyer, was the operational guard ship at the time and assisted in relief operations in and around the Gregorytown area. In addition, assistance came from Canada, Japan, and the United States, as well as the United Nations. The American Red Cross delivered 100 tents, 100 rolls of plastic sheeting, and 1,000 cots. The passage of the hurricane disrupted several breeding colonies of the white-crowned pigeon throughout the country. After the House of Representatives appropriated aid to victims of Hurricane Iniki in Hawaii and Typhoon Omar in Guam, the cost was later increased to $11.1 billion. The bill, which was the most costly disaster aid package at the time, was passed by Congress as House Resolution 5620 on September 18, and signed into law by President Bush on September 23. The state of Florida alone received $9 billion through the disaster relief bill. The Federal Emergency Management Agency (FEMA) was criticized for its slow response in both Florida and Louisiana. Even a month prior to Andrew, the House Committee on Appropriations – which oversees the budget for FEMA – released a report calling the agency a "political dumping ground" and a "turkey farm" due to its "weak, inexperienced leaders". Congressman S. William Green of New York, a member of the Appropriations Committee, stated that he believed the agency learned little from its botched response to Hurricane Hugo in 1989. However, Green also criticized local officials for expecting "them [FEMA] to come and run the whole show". Some FEMA officials responded that it was impossible to respond as they had been requested while also continuing to provide aid for the Los Angeles riots. FEMA spokesman Grant Peterson stated, "24 hours is not reasonable to expect to have all the resources of the federal government landing in the middle of a disaster." Some responsibility for the slow response must rest with Florida Governor Lawton Chiles, who waited five days to submit the formal request for Federal assistance that FEMA officials believed was required before they were empowered to act. Florida |alt=People working to clear debris off of a damaged home President George H. W. Bush declared the region a disaster area and provided public assistance to victims in counties Broward, Collier, Dade, and Monroe. Governor Lawton Chiles considered asking the Florida Legislature to raise taxes Crime, especially looting and theft, rose sharply in the areas south of Miami immediately after Andrew. Reports indicate that merchandise was stolen at damaged or destroyed shopping centers in southern Dade County, and looting occurred in neighborhoods severely affected by the storm. To provide temporary housing for the homeless, military personnel initially set up a total of five tent cities in Florida City and Homestead, while a sixth tent city was opened at the Miccosukee Indian Reservation shortly after Labor Day weekend. The Government of Canada dispatched a team of 90 military engineers to repair community centers, hospitals, and schools, and a crew of 300 military personnel was sent to Miami via HMCS Protecteur to assist American relief teams. In the aftermath of the storm, extensive psychological effects were documented, including increased divorce rates and a spike in post-traumatic stress disorder (PTSD). A panel of psychiatrists and psychologists at the University of Miami agreed that as many as 90% of residents in the worst impacted areas would experience at least a few symptoms of PTSD. Within six months, the circumstances related to the aftermath of Andrew led to at least five suicides and four homicides. As homes were being rebuilt, FEMA provided free temporary mobile homes for 3,501 families and financial assistance to more than 40,000 other families for staying in hotel rooms, paying rent, and repairing homes. Nearly two years after Andrew, about 70% of homes in Homestead that were damaged or destroyed were repaired or rebuilt. Additionally, of the homes destroyed or severely damaged throughout Dade County, 36,000 had been restored by July 1994. Over 930,000 policyholders in South Florida lost coverage after 11 insurance companies went bankrupt, resulting in over 600,000 insurance claims. The Florida Legislature created new entities like the Joint Underwriting Association, Florida Windstorm Underwriting Association, and Florida Hurricane Catastrophe Fund to restore insurance capacity. Stricter building codes were established in Florida after Hurricane Andrew. A survey by Timothy P. Marshall and Richard Herzog of the Haag Engineer Company in Carrollton, Texas, highlighted construction issues in homes. Concrete tiles were glued to felt paper, while shingles were stapled perpendicular to the long axis, allowing them to be torn away. This exposed plywood and prefabricated trusses to weather, leading to structural failure and roof collapses. In 1996 Governor Chiles established the Florida Building Codes Study Commission to assess and improve the system. The Florida Building Code was established in 1998 and put into effect by 2002, replacing local laws and regulations with universal statewide building codes. After hurricanes Charley, Frances, Ivan, and Jeanne in 2004, a study by the University of Florida found that homes built under the new code sustained less damage on average than those built between 1994 and 2001. A report by the Florida Legislature in 2006 and after hurricanes Dennis, Katrina, and Wilma in 2005 also concluded that the Florida Building Code is working. The hurricane also transformed Dade County, with a migration of mostly White families northward to Broward and Palm Beach County, which was accelerated after Andrew. Many Jews relocated to areas with significant Jewish populations. The county experienced a net loss of about 36,000 people in 1992, while Broward and Palm Beach counties gained about 17,000 and 2,300 residents, respectively. The Hispanic population in the southern part of Dade County climbed rapidly, Louisiana On August 26, George H. W. Bush toured devastated areas of Louisiana with Governor Edwin Edwards. President Bush remarked, "The destruction from this storm goes beyond anything we have known in recent years," but noted that damage was less severe than in Florida. After his visit to Louisiana, President Bush declared only Terrebonne Parish as a disaster area, but later included 34 other parishes under this declaration. FEMA initially opened five field offices throughout Louisiana. These centers allowed residents to submit applications for aid. After Franklin mayor Sam Jones and Congressman Billy Tauzin criticized FEMA for failing to open a field office in Franklin, FEMA promised to do so. In the first few days following the storm, Louisiana National Guard members and local residents worked to remove debris such as downed trees, roofing shingles, and torn aluminum siding. The state National Guard also dispatched water purification units and tanks with filled potable water. About 1,300 National Guardsmen were deployed to southern Louisiana. House Resolution 5620 also included disaster aid to the state of Louisiana. Retirement Due to the hurricane's impact and damage, the World Meteorological Organization retired the name Andrew from its rotating Atlantic hurricane name lists in the spring of 1993, and it will never again be used for another Atlantic hurricane. It was replaced with Alex for the 1998 season. ==See also==
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