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Bad news for 'Nawlins if Ivan makes a direct hit

Discussion in 'Open Discussion (Work-safe)' started by LoKyBuckeye, Sep 14, 2004.

  1. LoKyBuckeye

    LoKyBuckeye I give up. This board is too hard to understand.

    I hope everyone in Ivans path stays safe.... looks like it could get very bad.

    U.S. National - AP
    Direct Hit by Ivan Could Sink New Orleans

    By BRETT MARTEL, Associated Press Writer

    NEW ORLEANS - The worst-case scenario for New Orleans — a direct strike by a full-strength Hurricane Ivan — could submerge much of this historic city treetop-deep in a stew of sewage, industrial chemicals and fire ants, and the inundation could last for weeks, experts say.

    If the storm were strong enough, Ivan could drive water over the tops of the levees that protect the city from the Mississippi River and vast Lake Pontchartrain. And with the city sitting in a saucer-shaped depression that dips as much as 9 feet below sea level, there would be nowhere for all that water to drain.

    Even in the best of times, New Orleans depends on a network of canals and huge pumps to keep water from accumulating inside the basin.

    "Those folks who remain, should the city flood, would be exposed to all kinds of nightmares from buildings falling apart to floating in the water having nowhere to go," Ivor van Heerden, director of Louisiana State University's Hurricane Public Health Center, said Tuesday.

    LSU's hurricane experts have spent years developing computer models and taking surveys to predict what might happen.

    The surveys predict that about 300,000 of the 1.6 million people living in the metropolitan area would risk staying.

    The computer models show a hurricane with a wind speed of around 120 mph or more — hitting just west of New Orleans so its counterclockwise rotation could hurl the strongest surf and wind directly into the city — would push a storm surge from the Gulf of Mexico and Lake Pontchartrain over the city's levees. Ivan had sustained wind of 140 mph Tuesday.

    New Orleans would be under about 20 feet of water, higher than the roofs of many of the city's homes.

    Besides collecting standard household and business garbage and chemicals, the flood would flow through chemical plants in the area, "so there's the potential of pretty severe contamination," van Heerden said.

    Severe flooding in area bayous also forces out wildlife, including poisonous snakes and stinging fire ants, which sometimes gather in floating balls carried by the current.

    A rescue of people who stayed behind would be among the world's biggest since 1940, when Allied forces and civilian volunteers during World War II rescued mostly British soldiers from Dunkirk, France, and carried them across the English Channel, van Heerden predicted.

    Much of the city would be under water for weeks. And even after the river and Lake Pontchartrain receded, the levees could trap water above sea level, meaning the Army Corps of Engineers would have to cut the levees to let the water out.

    "The real big problem is the water from sea level on down because it will have to be pumped and restoring the pumps and getting them back into action could take a considerable amount of time," said John Hall, the Corps' spokesman in New Orleans.

    Hall spoke from his home — 6 feet below sea level — as he prepared to flee the city himself. The Corps' local staff was being relocated 166 miles north to Vicksburg, Miss.

    New Orleans was on the far western edge of the Gulf Coast region threatened by Ivan, and forecasters said Tuesday that the hurricane appeared to moving toward a track farther east, along the Mississippi coast.

    If the eye came ashore east of the city, van Heerden said, New Orleans would be on the low side of the storm surge and would not likely have catastrophic flooding.

    The worst storm in recent decades to hit New Orleans was Hurricane Betsy in 1965, which submerged parts of the city in water 7-feet deep and was blamed for 74 deaths in Louisiana, Mississippi and Florida. That storm was a Category 3, weaker than Ivan is expected to be.

    Even if New Orleans escapes this time, van Heerden said, it will remain vulnerable until the federal and state governments act to restore the coastal wetlands that should act as a buffer against storms coming in from the Gulf.

    Louisiana has lost about a half million acres of coast to erosion since 1930 because the Mississippi River is so corralled by levees that it can dump sediment only at its mouth, and that allows waves from the Gulf to chop away at the rest of the coastline.

    "My fear is, if this storm passes (without a major disaster), everybody forgets about it until next year, when it could be even worse because we'll have even less wetlands," van Heerden said.
  2. NorthShoreBuck

    NorthShoreBuck True Madness Requires Significant Intelligence

    I got my MBA with a someone that worked in Revenue Protection and Risk Management for Entergy, the major power producer down here.

    They run models all the time.
    We have a incredible amount of new construction and it effects the flood plain.
    New Orleans is essentially a bowl with the city below sea level. The models they run are called slosh models as in how much will the water slosh around in the bowl?

    He told me the models say that if a slow moving category 3 storm or a category 4 or 5 would hit the West side of Lake Ponchatrain it would make New Orleans uninhabitable for months, possibly longer.

    The story LoKy posted is correct. There would be standing water stories deep and it would essentially be toxic waste.

    If a major storm entered Lake Ponchatrain it would probably wipe out where I live.

    The death toll would be incedible since many do not or cannot leave.
    We have been lucky for years. That makes many jaded or cocky.

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