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re: Sally - Moving towards Georgia - Potential for Significant Flooding

Posted on 9/12/20 at 10:54 pm to
Posted by gaetti15
AK
Member since Apr 2013
15275 posts
Posted on 9/12/20 at 10:54 pm to
quote:

This will be the first real storm that will demonstrate the hydrological impact of the Chalmette Wall water movement


Yep that's what I was thinking as well looking at the track.
Posted by TitleistProV1X
Member since Nov 2015
3649 posts
Posted on 9/12/20 at 10:55 pm to
Is there anything moving in they could steer this thing further and further left? The slow movement of this thing has me worried.
Posted by fightin tigers
Downtown Prairieville
Member since Mar 2008
78304 posts
Posted on 9/12/20 at 10:56 pm to
Didn't we learn from a storm that it just pushes into Laplace and into Maurepas?
Posted by Duke
Dillon, CO
Member since Jan 2008
36494 posts
Posted on 9/12/20 at 10:56 pm to


The circled feature is the ULL discussed earlier. It is holding on for a while on the GFS and keeping the storm from fully stacking vertically until Monday morning. I think this feature, while subtle, is probably being depicted too strong by the 18 hour mark.

The GFS does manage to vertically align the storm by Monday morning like I said above.





Not perfect but better and why you're seeing a stronger storm this run.
Posted by lsugolfredman
Member since Jun 2005
1941 posts
Posted on 9/12/20 at 10:58 pm to
Posted by deuce985
Member since Feb 2008
27660 posts
Posted on 9/12/20 at 10:59 pm to
It better stay east. You hate to wish this on someone else but...it really doesn't need to shift west to a high population city like new orleans that's super vulnerable with these type of rainfall projections. You laugh at those rainfall totals but in that projection there it's actually one of the better scenarios because most of it just get dumped into the gulf. It's still giving high totals in some areas but they're not as vulnerable as NO and it's certainly not some of the 20+ inch projections on that rainfall total scale.

A small shift west and NO is fricked...and that shift is very much a possibility as is a higher intensity forecast than what they have projected now. It's starting to get concerning.
This post was edited on 9/12/20 at 11:02 pm
Posted by tiger91
In my own little world
Member since Nov 2005
40226 posts
Posted on 9/12/20 at 11:01 pm to
I don’t like this one selfishly.

A few pages back it was posted that Latoya called mandatory Evacuation for Nola outside of the levee system. How much of Nola does that involve?
This post was edited on 9/12/20 at 11:02 pm
Posted by theOG
Member since Feb 2010
10830 posts
Posted on 9/12/20 at 11:04 pm to
quote:

How much of Nola does that involve?


Nothing that you’d consider New Orleans.
Posted by fightin tigers
Downtown Prairieville
Member since Mar 2008
78304 posts
Posted on 9/12/20 at 11:05 pm to
Not a lot, area called Venetian Isles is the main area. You don't move out there without knowing the consequences.
Posted by NolaAg04
Member since Aug 2016
79 posts
Posted on 9/12/20 at 11:05 pm to
Not much, it’s mostly Venetian Isles and the folks along U.S. 90 between Lake Pontchartrain and Lake Borgne.
Posted by JackieTreehorn
Member since Sep 2013
35576 posts
Posted on 9/12/20 at 11:05 pm to
quote:

How much of Nola does that involve?

Ghana have to figure that one out.
Posted by lsugolfredman
Member since Jun 2005
1941 posts
Posted on 9/12/20 at 11:05 pm to
Posted by CaptainJ47
Gonzales
Member since Nov 2007
7789 posts
Posted on 9/12/20 at 11:10 pm to
Those rain totals aren’t good but are MUCH more reasonable.
Posted by CaptainJ47
Gonzales
Member since Nov 2007
7789 posts
Posted on 9/12/20 at 11:11 pm to
Slack- what are your thoughts on Ms. Rita’s in MC? Everything I have tried to go it hasn’t worked. I settled for Atchafalaya last night
Posted by DVinBR
Member since Jan 2013
15724 posts
Posted on 9/12/20 at 11:14 pm to
latest GFS

Posted by tiger91
In my own little world
Member since Nov 2005
40226 posts
Posted on 9/12/20 at 11:15 pm to
Thanks all — I was just trying to imagine the shite show that a huge evacuation would be.
Posted by MrLSU
Yellowstone, Val d'isere
Member since Jan 2004
29713 posts
Posted on 9/12/20 at 11:16 pm to
quote:

Those rain totals aren’t good but are MUCH more reasonable.


10-13 inches for Orleans Parish?

We are talking about the NOLA S&WB here. They can barely handle 2 inches.
Posted by tiger91
In my own little world
Member since Nov 2005
40226 posts
Posted on 9/12/20 at 11:16 pm to
Is that moving more west or am I making that up?
Posted by Duke
Dillon, CO
Member since Jan 2008
36494 posts
Posted on 9/12/20 at 11:18 pm to
The GFS has been a little more west the last two runs but it's subtle. The problem is it'll make a big difference for NOLA. It doesn't have a lot of room to get much farther west than is being shown. Ridge builds in east to push it north by Tuesday late morning.
Posted by MrLSU
Yellowstone, Val d'isere
Member since Jan 2004
29713 posts
Posted on 9/12/20 at 11:25 pm to
Hurricane Sally has flooded Key West's Duval Street tonight.

Duval Crawl is now the Duval Street Swim
This post was edited on 9/12/20 at 11:25 pm
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