Well, this morning, I heard the snakes and alligator comment, regarding if Lake Pontchartrain [at high risk] floods, and breaks down/comes over the levees. Regarding the lessening of the storm, some commentator analogized it as being the difference between being hit by an 18-wheeler or a locomotive

. The minor shift to the east apparently doesn't take New Orleans out of harm's way, due to the counter-clockwise motion of the winds of hurricanes. So, if it passes beyond New Orleans, those winds coming over the Lake would be driving from the north, going south
over the Lake. The causeway
to the Lake has already flooded out. If the Lake floods, they say the result would be the worst flood in U.S. history; and that the [[people-dwarfing] turbines they have are still only geared to address heavy rains, not storm surges. If New Orleans floods, it could take from weeks up to six months to drain it. With the Superdome being a "shelter of last resort," the people are sitting on the seats of the auditorium, fearing it will flood. I just saw a TV report this morning, the first I've seen all weekend. I am seriously praying for much of what I see and hear to be 'alarmist' in nature.
This is a CNN article I just read, entitled "Katrina may be 'our Asian tsunami'."
(CNN) -- Flooding expected from Hurricane Katrina could wreak catastrophe on New Orleans, overwhelming its water and sewage systems, damaging its structures and leaving survivors in a bowl of toxic soup, a top hurricane expert said Sunday.
Katrina made landfall Monday morning between Grand Isle, Louisiana, and the mouth of the Mississippi River. (Watch the latest update)
"We need to recognize we may be about to experience our equivalent of the Asian tsunami, in terms of the damage and the numbers of people that can be killed," said Ivor van Heerden, director of the Louisiana State University Public Health Research Center in Baton Rouge.
Some 25 feet of standing water is expected in many parts of the city -- almost twice the height of the average home -- and computer models suggest that more than 80 percent of buildings would be badly damaged or destroyed, he said. (Watch a report on the worst-case scenario)
Floodwaters from the east would carry toxic waste from the "Industrial Canal" area, nicknamed after the chemical plants there. From the west, floodwaters would flow through the Norco Destrehan Industrial Complex, which includes refineries and chemical plants, said van Heerden, who has studied computer models about the impact of a strong hurricane for four years.
"These chemical plants are going to start flying apart, just as the other buildings do," he predicted. "So, we have the potential for release of benzene, hydrochloric acid, chlorine and so on."
That could result in severe air and water pollution, he said.
In New Orleans, which lies below sea level, gas and diesel tanks are all located above ground for the same reason that bodies are buried above ground. In the event of a flood, "those tanks will start to float, shear their couplings, and we'll have the release of these rather volatile compounds," van Heerden added.
Because gasoline floats on water, "we could end up with some pretty severe and large -- area-wise -- fires."
"So, we're looking at a bowl full of highly contaminated water with contaminated air flowing around and, literally, very few places for anybody to go where they'll be safe."
He went further.
"So, imagine you're the poor person who decides not to evacuate: Your house will disintegrate around you. The best you'll be able to do is hang on to a light pole, and while you're hanging on, the fire ants from all the mounds -- of which there is two per yard on average -- will clamber up that same pole. And, eventually, the fire ants will win."
The levees intended to protect the city vary in height, from as low as 10 feet above sea level to about 14 feet, he said. They too are vulnerable, because they are made of earth, he said.
Disaster waiting to happen
Previous studies have suggested a catastrophic toll in lives and property if a major hurricane were to hit the New Orleans area, where about 1.3 million people live.
Walter Maestri, the emergency management chief in neighboring Jefferson Parish, said Hurricane Georges in 1998 could have killed as many as 44,000 people had it struck the city directly.
"The way it's described, we describe it here, is Lake Pontchartrain has now become Lake New Orleans," he told CNN in 2004.
Van Heerden said levees built to protect New Orleans from Lake Pontchartrain could be buffeted by waves from the lake, which is about 23 miles by 35 miles in area.
"You're going to have enormous waves develop on that lake, especially with as much as 14 hours of hurricane-force winds." Those waves will erode the levees, raising the possibility of their collapse, he said.
"This is what we've been saying has been going to happen for years," he said. "Unfortunately, it's coming true."
Rick Luettich, a professor at the University of North Carolina's Institute of Marine Sciences, compared Katrina's expected impact on areas far up the Mississippi to "grabbing the end of the bed cover and giving it a hard snap."
That snap will push "probably in excess of 10 feet" of floodwater up the river, he predicted. "It will propagate up the river like a wave," past Baton Rouge, more than 70 miles away, he said.
For 15 years, Luettich has been developing a hydrodynamic circulation model -- called AdCirc -- that he said the Federal Emergency Management Agency has endorsed to help emergency managers predict storm damage.
Apologizing for the possibility that his comment could be interpreted as somewhat ghoulish, he said, "This is, in some ways, a little bit exciting for us, because it's a real opportunity to test this technology we've developed and see how well it works."
We'll know more in several hours. Power is out in the French Quarter. There are some serious, headline writers out there ~ "Katrina May Turn New Orleans into Atlantis." [Writing about it is how I work through my stress.]
In Mississippi, some shelters have been evacuated a second time due to flooding, and people are still evacuating from that area.
All of New Orleans is now without power. The "pumping stations" have stopped [due to power being out], which means they're no longer essentially draining the city, and there's standing water at curb level, but increasing by the minute. If they can get generators working, they can get the stations working, but the problem is that this would require getting people into unsafe areas in order to do so.
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Part of the roof of the Superdome has sprung leaks, letting in water and daylight, with people being moved. Some storm shutters in New Orleans have given way and are flying in the air.
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A trailer at the bottom of the screen on CNN just said, "Mississippi Levee Breaks at New Orleans French Quarter." I'm looking for more information on that.
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There's structural damage throughout New Orleans now, and some homes are flooded to the ceilings. The pumps [that aren't working] are geared to addressing only 2" [inches] of rain. Landline phones have stopped working, and they're concerned that the cell phones may go out, as well. The Superdome continues to let in water [pouring in/seeing daylight where a portion of the roof has been torn off], and the hotel where one of the reporters is staying has moved all the residents to an inner ballroom.
The levee that's broken is one of the main ones.
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Another trailer has come up saying that the Lake Pontchartrain Levee has given way, but they're not giving additional information about that. Some apartment building in Harvey, Louisiana has collapsed and people are trapped. The worst is hitting New Orleans now, and will continue for another [approx.] 1.5 hours. A hundred windows at the Hyatt Regency New Orleans. They're saying the continual battering is what will continue to weaken the structures.
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10:45 AM ~ The water has been declared undrinkable in New Orleans. However, the hurricane has now downgraded to a Category 3.
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"Lower 9th Ward of New Orleans, on east side of city, under 5 to 6 feet of water after pumps fail, mayor says."
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11:15 AM ~ The report just said that there's no flooding in the French Quarter. But, then, immediately after that they gave a report that the levees of Lake Pontchartrain have just been "overtopped" with water, and that it's of great concern to the city. There are people on roofs in New Orleans awaiting rescue.
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11:40 AM ~ Now, they're saying it looks like they've avoided the worst-case scenario in New Orleans, even though they're still going to be battered for hours to come today.
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12:15 PM ~ Area south of Lake Pontchartrain flooded under 8 feet of water [almost completely covering U-Haul trucks]. In Gulfport, Mississippi, 10 feet of water is covering the streets. Whitecaps on the water in flooded streets, due to the wind.
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1:36 PM ~ People climbing into their attics in New Orleans to avoid the rising water in their homes. Obviously, heavy material losses for them. Hopefully, not their lives.
"Katrina: Flooding, felled buildings
* 10 feet of water covers Gulfport, Mississippi, streets
* East side of New Orleans under 5 to 6 feet of water
* Mobile Bay spills into downtown
* "Total structural failure" in parts of New Orleans
* Hurricane Katrina now Category 2, with 105 mph wind"
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It seems that New Orleans has survived this onslaught, as well as can optimally be expected, given the circumstances and the hurricane's magnitude. We'll know more as search-and-rescue and various tallies occur. However, it wasn't the catacylsmic happening that was so feared.
Thank G~d

. Alabama seems the hardest hit. Praying the casualties were low there. New Orleans was certainly the most vulnerable in terms of life and property losses. The property losses are horrendous in both places, by the sounds of it.
For future reference, from the analogies being made, it seems the easiest way to visualize New Orleans is as a cereal bowl, with the surrounding levees emptying into it.