The hurricane and its aftermath claimed more than 1,800 lives, and it ranked as the costliest natural disaster in U.S. history.

Updates? Satellite image of Hurricane Katrina overlaying a thermal display of sea surface temperatures for the Caribbean Sea and Atlantic Ocean, August 27, 2005. On the morning of August 29, the storm made landfall as a category 4 hurricane at Plaquemines Parish, Louisiana, approximately 45 miles (70 km) southeast of New Orleans.

As winds increase to a sustained speed of 39 miles per hour, a tropical depression becomes a tropical storm.

The Federal Emergency Management Agency and dozens of state, local and private relief agencies are trying to aid the hundreds of thousands of people throughout Louisiana, Mississippi and Alabama who were forced to evacuate their homes. Our editors will review what you’ve submitted and determine whether to revise the article. With no relief in sight and in the absence of any organized effort to restore order, some neighbourhoods experienced substantial amounts of looting, and helicopters were used to rescue many people from rooftops in the flooded Ninth Ward. When Hurricane Katrina first made landfall in Florida between Miami and Fort Lauderdale, it was a category 1 hurricane with sustained winds of 70 miles per hour.

Lives were lost, homes were destroyed and a community was … The search for the origin of life: From panspermia to primordial soup.

As the recovery began, dozens of countries contributed funds and supplies, and Canada and Mexico deployed troops to the Gulf Coast to assist with the cleanup and rebuilding.

Hurricanes are characterised by a calm central region of low pressure between 12 to 60 miles in diameter, known as the eye. New Orleans went from having a public school system to having a school system composed almost entirely of charter schools, most of them run by charter management organizations. Get exclusive access to content from our 1768 First Edition with your subscription. The storm spent less than eight hours over land. Hurricane Katrina’s power diminished slightly during its seven hours over land, because it was no longer drawing up warm, damp air from the sea – it was literally running out of steam. Inside eyewall of Hurricane Katrina shortly before the storm struck Louisiana, August 2005. A stand of trees killed by Hurricane Katrina in 2005. On August 29, Hurricane Katrina pounded the U.S. Gulf Coast causing widespread destruction and flooding. This infographic details Katrina's path and devastating impact.

Hurricane Katrina has had a devastating impact on the Gulf Coast of the US. Learn about how hurricanes and typhoons are given their names according to rules created by the World Meteorological Organization. Hurricane Katrina led to widespread flooding in southeastern Louisiana when the levee system that held back the waters of Lake Pontchartrain and Lake Borgne was completely overwhelmed by 10 inches of rain and Katrina’s storm surge.

The rotation of the Earth also determines the direction in which these storms travel, so hurricanes in the North Atlantic move west towards Central and North America. There is no particular person for whom Hurricane Katrina was named.

Hurricane Katrina: The Aftermath Rescuers searched for survivors along the Gulf Coast as flooding from Hurricane Katrina continued to worsen after the …

Let us know if you have suggestions to improve this article (requires login). The immune system: can you improve your immune age? On August 31 the first wave of evacuees arrived at the Red Cross shelter at the Houston Astrodome, some 350 miles (560 km) away from New Orleans, but tens of thousands remained in the city. Katrina finally made landfall in Louisiana at 0610 local time on 29 August as a category four hurricane. Katrina turned north and northwest and rapidly intensified, achieving major hurricane status in the afternoon of 26 August. They either remained in their homes or sought shelter at locations such as the New Orleans Convention Center or the Louisiana Superdome. We and our partners will store and/or access information on your device through the use of cookies and similar technologies, to display personalised ads and content, for ad and content measurement, audience insights and product development.

This in turn creates wind as air is drawn into the area. New Orleans Mayor Ray Nagin had ordered a mandatory evacuation of the city the previous day, and an estimated 1.2 million people left ahead of the storm. The hurricane left an estimated three million people without electricity.

It continued on a course to the northeast, crossing the Mississippi Sound and making a second landfall later that morning near the mouth of the Pearl River. To enable Verizon Media and our partners to process your personal data select 'I agree', or select 'Manage settings' for more information and to manage your choices.

Sustained winds of 70 miles per hour (115 km per hour) lashed the Florida peninsula, and rainfall totals of 5 inches (13 cm) were reported in some areas. Ten years ago, Hurricane Katrina left the city of New Orleans underwater in a state of emergency. By the time the storm strengthened to a category 3 hurricane, winds exceeded 115 miles per hour. At its height as a category 5 hurricane over the Gulf of Mexico, Katrina’s wind speeds exceeded 170 miles per hour. Areas east of the Industrial Canal were the first to flood; by August 30, 80 percent of New Orleans was underwater. Much of the damage was due to driving rain and ferocious winds, but along the Gulf Coast and the Mississippi River, devastation was also caused by a massive storm surge. Katrina briefly achieved category five status, but diminished slightly before it made landfall. Hurricane Katrina, tropical cyclone that struck the southeastern United States in late August 2005.

Information about your device and internet connection, including your IP address, Browsing and search activity while using Verizon Media websites and apps. Under these conditions, large quantities of water evaporate and condense into clouds and rain – releasing heat in the process. By the following afternoon Katrina had become one of the most powerful Atlantic storms on record, with winds in excess of 170 miles per hour (275 km per hour). On September 3, 2005, Homeland Security Secretary Michael Chertoff described 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.

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HuffPost is part of Verizon Media. - Hurricane Facts, LiveScience - Hurricane Katrina: Facts, Damage and Aftermath, Hurricane Katrina - Student Encyclopedia (Ages 11 and up).

These requirements are met between June and November in the northern hemisphere. Hurricane Katrina formed in this way over the south-eastern Bahamas on 23 August 2005 and was labelled Tropical Depression 12.

U.S. Army engineers pumped the last of the floodwaters out of the city on October 11, 2005, some 43 days after Katrina made landfall. A hurricane is a fiercely powerful, rotating form of tropical storm that can be 124 to 1240 miles in diameter.

Hurricane Katrina, tropical cyclone that struck the southeastern United States in August 2005, breaching levees and causing widespread damage and deaths.

Hurricanes can only form and be fed when the sea-surface temperature exceeds 27 °C and the surrounding atmosphere is calm. Aerial view of flooding in the New Orleans area following Hurricane Katrina, August 2005.

If this process happens a little way from the equator – typically at latitudes of more than 10° north – then the Coriolis force associated with the rotation of the Earth sets the massive weather system spinning, with winds spiralling in towards the centre.

Katrina has left a disaster zone of 90,000 square miles in its wake – almost the size of the UK. Storm surges are huge tsunami-like waves resulting from the acutely low pressure at the eye of the hurricane. Rather, the hurricane was named in accordance with the World Meteorological Organization’s lists of hurricane names, which rotate every six years. You can change your choices at any time by visiting Your Privacy Controls.

The seed for hurricane formation is a cluster of thunderstorms over warm tropical waters. Tropical Depression 12 strengthened into Tropical Storm Katrina on 24 August and moved north-westwards through the Bahamas, gaining in strength. Thousands have been killed or injured and more than half a million people have been displaced in a humanitarian crisis of a scale not seen in the US since the great depression. It became a category one hurricane shortly before 1830 local time when it made landfall in south Florida that day. They occur in tropical regions and are called typhoons in South-East Asia and the Pacific, and cyclones in the Indian Ocean. The health benefits of sunlight: Can vitamin D help beat covid-19? On August 27 Katrina strengthened to a category 3 hurricane, with top winds exceeding 115 miles per hour (185 km per hour) and a circulation that covered virtually the entire Gulf of Mexico. Meet NASA's latest Mars Rover: Will Perseverance find life in 2021?

Hurricane Katrina formed on August 23, 2005, and in less than a week grew from a tropical depression into a category 4 hurricane. In Katrina's Aftermath, Psychologists Find Trauma As Well As Resilience "Natural disasters and other traumatic events could be engines of growth."

It was downgraded to a tropical storm 100 miles inland near Laurel, Mississippi.

Omissions? Ultimately, the storm caused more than $160 billion in damage, and the population of New Orleans fell by 29 percent between the fall of 2005 and 2011. Corrections? The weather systems spin anti-clockwise in the northern hemisphere, and clockwise in the southern hemisphere. Prior to Hurricane Katrina the public school system of New Orleans was one of the lowest-performing districts in the state of Louisiana. After Hurricane Katrina, which damaged more than 100 school buildings, the state seized control of almost all urban schools and turned them over to independent charter groups. Find out more about how we use your information in our Privacy Policy and Cookie Policy.

This article was most recently revised and updated by, https://www.britannica.com/event/Hurricane-Katrina, Science Kids - Fun Science and Technology for Kids! A flooded neighbourhood in Port Sulphur, Louisiana, after Hurricane Katrina.

Over the next two days the weather system gathered strength, earning the designation Tropical Storm Katrina, and it made landfall between Miami and Fort Lauderdale, Florida, as a category 1 hurricane (a storm that, on the Saffir-Simpson scale, exhibits winds in the range of 74–95 miles per hour [119–154 km per hour]).

Many local agencies found themselves unable to respond to the increasingly desperate situation, as their own headquarters and control centres were under 20 feet (6 metres) of water.

The low pressure draws in water, raising sea levels by up to 4 metres.

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Over its lifetime, one of these storms can release as much energy as 10,000 nuclear bombs. Articles from Britannica Encyclopedias for elementary and high school students. It whipped up sustained winds of 140 miles per hour (225 kilometres per hour), and a 5 to 9 metre high “storm surge” of sea water when it made landfall at 0610 local time on 29 August 2005. Is a dangerous new coronavirus strain circulating in farmed mink?

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