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Hurricane Isaac Storm Reports


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Correct me if I am wrong, but didn't the levees in NO breach when Katrina had passed and all the water that got pushed up came rushing back down?

Yes, thecworst situation is to funnel water into the lake and then have a north wind push it down into the city as it passes. Someone told me at the end of the last thread that there was no chance if that happening sice there is no way that NOLA can get the western eyewall. I don't know, seems unlikely but I would still be edgy in NOLA considering the erratic movement of late.

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Correct me if I am wrong, but didn't the levees in NO breach when Katrina had passed and all the water that got pushed up came rushing back down?

http://www.tulane.edu/~sanelson/New_Orleans_and_Hurricanes/New_Orleans_Vulnerability.htm

Myths Involving Hurricane Katrina

  • New Orleans survived Hurricane Katrina on August 29, 2005 - then the levees broke the next day to flood the city.
    False: All levees breached before 10:00 AM on the morning of August 29, 2005!

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http://www.tulane.edu/~sanelson/New_Orleans_and_Hurricanes/New_Orleans_Vulnerability.htm

Myths Involving Hurricane Katrina

  • New Orleans survived Hurricane Katrina on August 29, 2005 - then the levees broke the next day to flood the city.
    False: All levees breached before 10:00 AM on the morning of August 29, 2005!

They were under about a 100mph sustained north wind at that point, IIRC.

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Plaquemines totally flooded, the plaquemines parish president, who the army corps assured would be totally safe ended up in his attic with his family. http://www.wwltv.com/video?id=167811585&sec=554827&ref=rcvidmod

Those statements the army corps was making last night weren't right factually or morally...

Theyre talking to a guy on his roof waiting for rescue in Plaquemans Parrish on TWC.
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New Orleans Lakefront airport had 9.02" as of 7am central.

Nothing more than gut feeling after looking at PWSs for the past few years, but I think this one might be ok (11+" on the day):

http://www.wunderground.com/weatherstation/WXDailyHistory.asp?ID=KLAGRETN4&day=29&month=08&year=2012

All gauges are going to have some trouble in high wind, though.

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Storm surge at Shell Beach, LA reached 11.02 feet, which is the 5th highest storm surge, which is the 5th highest of all time (records go back about 100 years):

Rank Storm Year Max Water Level (ft)

1 Katrina 2005 18.7 (storm surge)

2 Unnamed 1915 11.6 (storm tide)

3 Unnamed 1947 11.2 (storm tide)

4 Camille 1969 11.06 (storm tide)

5 Isaac 2012 11.02 (storm surge)

6 Flossy 1956 10.9 (storm tide)

7 Gustav 2008 9.53 (storm surge)

8 Betsy 1965 9.34 (storm tide)

9 Ike 2008 7.51 (storm surge)

10 Unnamed 1901 6.7 (storm tide)

Surge at Waveland, MS has reached 8.0 feet, and this is likely the 2nd highest in the past 40 years (Katrina is the highest). Georges only produced a 5.8 ft surge in Bay St. Louis, very near Waveland.

Source:

http://stormsurge2010.blogspot.co.il/2012/08/isaacs-1095-foot-surge-moves-it-into.html

See also: http://surge.srcc.lsu.edu/

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Storm surge at Shell Beach, LA reached 11.02 feet, which is the 5th highest storm surge, which is the 5th highest of all time (records go back about 100 years):

Rank Storm Year Max Water Level (ft)

1 Katrina 2005 18.7 (storm surge)

2 Unnamed 1915 11.6 (storm tide)

3 Unnamed 1947 11.2 (storm tide)

4 Camille 1969 11.06 (storm tide)

5 Isaac 2012 11.02 (storm surge)

6 Flossy 1956 10.9 (storm tide)

7 Gustav 2008 9.53 (storm surge)

8 Betsy 1965 9.34 (storm tide)

9 Ike 2008 7.51 (storm surge)

10 Unnamed 1901 6.7 (storm tide)

Surge at Waveland, MS has reached 8.0 feet, and this is likely the 2nd highest in the past 40 years (Katrina is the highest). Georges only produced a 5.8 ft surge in Bay St. Louis, very near Waveland.

Source:

http://stormsurge201...es-it-into.html

See also: http://surge.srcc.lsu.edu/

I wonder when the 18.7 was recorded for Katrina... as the storm was arriving, or when Shell Beach was in the western eyewall as Katrina was moving away?

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