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Started By
Message
re: Hurricane Katrina made landfall 15 years ago today - August 29, 2005
Posted on 8/29/20 at 11:48 am to dukke v
Posted on 8/29/20 at 11:48 am to dukke v
quote:
I have a serious question for you... at one time Katrina was a cat 5 with 175 mph winds. It went down to a cat 3 at landfall. Still a very bad storm... BUT what would it have been like if the levees did not fail in New Orleans?????
In some regards, Katrina was worse being a weakening major hurricane at landfall. There is a difference between a strengthening storm like Laura and a weakening storm like Katrina. All those awe-inspiring satellite and radar images of Katrina filling the Gulf illustrate that difference.
While it is true that Katrina had weakened and was continuing to weaken at landfall, the eyewall replacement cycles it went through, that contributed to that weakening, served to greatly expand its wind field. Katrina's wind field was just massive. Being that wind moves water, and that water will keep moving as long as the winds blow, surge just built and built. It didn't matter if the winds were 120, or 150+, they were plenty strong enough to move walls of water.
If Katrina had been a strengthening 4, or even 5, with a smaller windfield, we could have seen a storm more like Laura, but that wasn't in the cards.
2
Posted on 8/29/20 at 12:00 pm to LegendInMyMind
The issue for the MS coast from my understanding was the combination of the water which had already built up from the period when Katrina was a cat5 and the shallow coastal ridge which lends to higher storm surge than LA or AL.
That was the explanation I’ve heard as to why the storm surge was 25’-30’+ in MS and only 15’ for Laura in LA.
That was the explanation I’ve heard as to why the storm surge was 25’-30’+ in MS and only 15’ for Laura in LA.
Posted on 8/29/20 at 12:01 pm to Roll Tide Ravens
If you all ever have time, go walk around the old town parts of Bay St Louis and Pass Christian and read the land mark and historical plaques and such they have up with stories about dangers in the area. It’s really eye opening to go read and see the area
I’m sure some other towns in the area have stuff up as well
I’m sure some other towns in the area have stuff up as well
Posted on 8/29/20 at 12:04 pm to dukke v
quote:
BUT what would it have been like if the levees did not fail in New Orleans?????
The Mississippi Gulf Coast would have still suffered the incredible and complete destruction that they did. They really took the worst part of Katrina, the eastern eyewall. New Orleans and that area of Louisiana would still have had plenty of wind damage and some flooding from rain, but nothing like what they suffered when the levees failed.
So I guess Mississippi would have gotten the most attention, rather than New Orleans. Hurricane Katrina would probably not be quite as infamous as it is.
This post was edited on 8/29/20 at 12:05 pm
Posted on 8/29/20 at 12:06 pm to Roll Tide Ravens
Correct. The Katrina storm surge was off the charts like never seen before.
Posted on 8/29/20 at 12:10 pm to Roll Tide Ravens
This is what I was thinking... the Mississippi coast was just devastated. And just think how worse it would have been had it stayed as a175mph cat 5 at landfall.... I can’t even imagine what the devestation would have been like....
Posted on 8/29/20 at 12:32 pm to OKtiger
(no message)
This post was edited on 8/29/20 at 12:34 pm
Posted on 8/29/20 at 12:32 pm to dukke v
quote:
And just think how worse it would have been had it stayed as a175mph cat 5 at landfall.... I can’t even imagine what the devestation would have been like....
Hattiesburg south would’ve looked like a 30 mile wide tornado passed through. As it was the damage was incredible, thankfully it’s sparse as far as population through there.
At the coast I’m not sure how much difference it would’ve made for those in the storm surge zone. A 32’ surge is taking your house down to the foundation regardless of what the wind wants to do haha.
Posted on 8/29/20 at 12:33 pm to OKtiger
quote:
Upvote if your house got destroyed
One of the strangest attempts to get a bunch of upvotes I’ve ever seen.
Posted on 8/29/20 at 12:55 pm to tide06
quote:
Hattiesburg south would’ve looked like a 30 mile wide tornado passed through.
It already did.
It took people at Shelby six hours to get from there to the Gulfport city limits.
Posted on 8/29/20 at 12:56 pm to tide06
quote:
The issue for the MS coast from my understanding was the combination of the water which had already built up from the period when Katrina was a cat5 and the shallow coastal ridge which lends to higher storm surge than LA or AL.
Plus it hit at high tide.
Posted on 8/29/20 at 1:07 pm to SidewalkTiger
There was an old guy who rode it out close to the lake in Slidell. He had some amazing videos of the storm. He made DvDs and gave them out for like 5 dollars. It said something vs Katrina. He was an old navy guy. Footage was amazing. I lost that film over the years. I wish I still had it.
Posted on 8/29/20 at 1:10 pm to LegendInMyMind
Anyone remember the wild fires in Tangi and Washington parish? Right around the first of deer rifle season.
There was so much dead fall In the woods that several areas had wildfires going.
There was so much dead fall In the woods that several areas had wildfires going.
Posted on 8/29/20 at 1:13 pm to Roll Tide Ravens
I just recently watched a documentary on Katrina on YouTube. The documentary said the recovery efforts were a total failure of local, state and federal government. It said the government had actually did a large training exercise the year before in case of something like that.
FEMA director resigns, Bush took a shite load of heat for it.
FEMA director resigns, Bush took a shite load of heat for it.
Posted on 8/29/20 at 1:20 pm to Pisco
quote:
The documentary said the recovery efforts were a total failure of local, state and federal government.
There were a lot of issues in Louisiana.
Mississippi did about as good as could be expected, every county in the state was declared a disaster area IIRC.
Posted on 8/29/20 at 1:50 pm to Roll Tide Ravens
Posted on 8/29/20 at 3:41 pm to dukke v
quote:
I have a serious question for you... at one time Katrina was a cat 5 with 175 mph winds. It went down to a cat 3 at landfall. Still a very bad storm... BUT what would it have been like if the levees did not fail in New Orleans?????
As other posters have said before me, although the measured "sustained" winds at landfall were just under 130, Katrina was pushing a Cat 5 storm surge up a relatively shallow offshore shelf. A giant storm with an eye 38 miles wide. This pic is my family home, and a similar shot was a two-page spread on the index of Time Magazine's 2005 End of Year Issue.
Hurricane Center data estimated the surge here at 30.4 feet with wave action on top of that. As though a nuclear bomb had been dropped. Everything within 40 miles in each direction looked like this.
Could have been even worse had it gone 50-60 miles west and cleaned out Houma, Thibodaux and mashed BR, which housed about 100,000 of us afterwards.
Posted on 8/29/20 at 3:45 pm to PhantomMenace
Note: that photo was likely taken more than two months post Katrina - standing water there still for weeks.
Posted on 8/29/20 at 4:42 pm to PhantomMenace
quote:
Note: that photo was likely taken more than two months post Katrina - standing water there still for weeks.
Any idea on why the water stuck around for two weeks?
Ground saturation?
Heavy rain upstream flowing back to the coast?
I’d think storm surge would dissipate more like a normal high tide?
Posted on 8/29/20 at 4:52 pm to Roll Tide Ravens
Awful
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