Issues of Katrina hurricane

For more information, we include the video for you to watch related to the issue of hurricane.. Please enjoy the video.. The title of this video is "Hurricane Katrina Day by Day".

Wednesday, August 24th

Over the Bahamas forms Tropical Depression 12, a swirling band of wind and rain. It picks up moisture and heat and with them, speed. As its winds reach 39 miles per hour, it becomes a tropical storm.  And is given a name: Katrina. Along the coast of Florida, a hurricane warning is announced, the first of many.

Thursday, August 25th

By four o’clock, Katrina grows into a category one hurricane. With eighty-mile-an-hour winds, it sideswipes through Florida just north of Miami. By midnight, over a million homes lose power. Eleven lives are lost.

Friday, August 26th

Katrina hooks north into the Gulf of Mexico and quickly picks up speed and size, becoming a category 2 hurricane. Locals try to safeguard their property, while the governors of Louisiana and Mississippi declare states of emergency.

Saturday, August 27th

As its winds reach one hundred and fifteen miles per hour, Katrina turns into a category 3 hurricane, with New Orleans in its sights. City officials urge those who can to evacuate. Traffic jams snarl the highways as up to eighteen thousand cars an hour try to make it out of harm’s way.

Sunday, August 28th

Katrina grows into a Category Four hurricane. A few hours later, it reaches Category Five, the highest possible rating. Winds exceed one hundred and seventy five miles an hour.

All residents in New Orleans are ordered to evacuate. For those without the means to leave, the city sets up shelters. Many locals simply hunker down in their homes and prepare to weather the storm.

Monday, August 29th

As dawn breaks, Katrina’s wind speeds slow back down to a Category 4 hurricane. It makes landfall at six a.m., 60 miles southeast of New Orleans.

Its hundred and forty-five mile-an-hour winds pummel the coasts of Louisiana, Mississippi and Alabama. The eye of the storm moves just east of New Orleans, but the city is not spared. New Orleans sits below sea level, surrounded by Lake Pontchartrain, and the Mississippi River. High flood walls, called levees, keep the water at bay.

But by eight a.m., there are reports that a levee has broken. The waters of Lake Pontchartrain rush in. Levees in three locations are breached. Eighty percent of the city is flooded. Some neighborhoods are submerged under twenty feet of water.

As night falls, Katrina slows to a tropical storm. It heads north through Tennessee and into Kentucky.

Tuesday, August 30th

The damage is immense. In Mississippi, the hurricane has crushed coastal towns. Hundreds are feared dead.  New Orleans lies in shambles. It is left without power, without drinking water. Many residents are stranded on rooftops, desperate to be rescued. Bodies float in the streets. Looting breaks out. Thousands make their way to Superdome and Convention Center in hopes of being evacuated.

Wednesday, August 31st

The waters stop rising, but the city is in chaos. Looting and violence are so widespread that police are forced to stop rescue operations to combat the problem.

Thursday, September 1st

Conditions at the Superdome and Convention Center are increasingly unsafe. People lack food, water, and basic sanitation. There are reports of violent assaults.

All together, over 50,000 people wait for the buses that will evacuate them. For most, the buses do not come.

 Friday, September 2nd

The National Guard arrives in force and restores order. They bring convoys of food and water. Evacuations begin in earnest.

Aftermath

By the following Monday, the Army Corps of Engineers plugs major holes in the levees. Draining pumps go back in operation. And the waters subside.

The residents of the Gulf slowly return, their lives forever changed by the power of a hurricane..

How Hurricane Katrina formed Katrina 

At 6:10 am on Monday, August 29th, a category 4 hurricane named Katrina made landfall on the Louisiana coast, laying waste to everything in its path.. Where did this catastrophic storm come from?

On August 24th, the temperature of the ocean off the coast of the Bahamas hovered around 85 degrees Fahrenheit. Warm, moist air was rising from the ocean surface. As the air rose, it condensed to form a system of thunderstorms. This condensation releases heat, which warms the cool air of the atmosphere, causing it to rise. As that air rises, more warm, moist air from the ocean takes its place. This creates a cycle which continuously moves heat from the ocean to the atmosphere. The motion creates a pattern of wind that begins to circulate and forms a center. Occasionally, one such spinning wheel of thunderstorms gathers strength, feeding on moisture and heat. When the winds of Tropical Depression Twelve hit 39 mph, Tropical Storm Katrina was born. Most severe tropical storms spin out their lives uneventfully in the open sea. Some, like Katrina, are destined for landfall. She moved slowly - sometimes as slow as six miles per hour - but she was getting stronger and heading toward Florida. Katrina was only a category 1 hurricane when it glanced off the Florida coast and spun out into the Gulf of Mexico. In the Gulf, the water hit a steamy 87 degrees Fahrenheit. These warmer waters caused Katrina to grow even more intense. After three days swirling over the warm waters of the Gulf, Katrina grew to a Category 5 hurricane, with winds whipping at a sustained 160 mph. Before it would make landfall, Katrina would be downgraded to a category 4, but that was little consolation. With sustained winds near 155 mph, and a storm surge over 20 feet high, Katrina was still the most destructive storm to hit the area in 36 years. Once over land, Katrina dealt a mighty and devastating blow to Louisiana and Mississippi At the same time, robbed of the warm waters of the Gulf of Mexico, the storm began to weaken. 12 hours after landfall, Katrina was no longer a hurricane, with maximum sustained winds of only 65 mph. A few short hours later, the only thing left of Katrina was the destruction in her wake.

Source : http://video.nationalgeographic.com

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