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Message

re: Hurricane Florence - Catastrophic Flooding Potential

Posted on 9/10/18 at 12:55 pm to
Posted by LSUFanHouston
NOLA
Member since Jul 2009
40997 posts
Posted on 9/10/18 at 12:55 pm to
quote:

You very well may be right, but people need to consider that just because wind speed drops to a 3, that doesn’t necessarily correlate to a drop in surge and rainfall totals.


Katrina hit MS Gulf Coast as a 3... with surges like a 5. The set up for that - a big storm that pushes up a ton of water and then loses some wind speed due to an eyewall replacement cycle... seems like we could have a similar thing here.
Posted by Jim Rockford
Member since May 2011
105246 posts
Posted on 9/10/18 at 12:56 pm to
CSB: my dad was stationed at Ft Jackson during Donna. They were sent to sandbag a levee. During the worst of the storm they put on their helmets and ponchos, linked arms, and sat down with their backs to the wind.
Posted by fightin tigers
Downtown Prairieville
Member since Mar 2008
78327 posts
Posted on 9/10/18 at 12:56 pm to
quote:

may want to hold off on that "coming here" thing

I mean... that blob may be better to deal with than Florence... but you never know


And whatever Issac remains will be sitting in the Caribbean once the blob is done doing it's thing.
Posted by slackster
Houston
Member since Mar 2009
91838 posts
Posted on 9/10/18 at 12:57 pm to
Florence:



Isaac:



Helene:



95L:

Posted by TigerstuckinMS
Member since Nov 2005
33687 posts
Posted on 9/10/18 at 1:00 pm to
Florence has gone buzzsaw.
Posted by OysterPoBoy
City of St. George
Member since Jul 2013
44707 posts
Posted on 9/10/18 at 1:01 pm to
We have obviously offended the weather gods.
Posted by LaBR4
Baton Rouge
Member since Sep 2005
53877 posts
Posted on 9/10/18 at 1:02 pm to
quote:


I'm going to Augusta. Prob Thursday


Grab a steak at T-bonz off Washington
This post was edited on 9/10/18 at 1:02 pm
Posted by fightin tigers
Downtown Prairieville
Member since Mar 2008
78327 posts
Posted on 9/10/18 at 1:03 pm to
quote:

We have obviously offended the weather gods.




All those 'we will rebuild' plastic chair memes
Posted by slackster
Houston
Member since Mar 2009
91838 posts
Posted on 9/10/18 at 1:05 pm to
quote:

When the map is zoomed out it doesn't look terrible compared to a LA hit, but zooming in, there are a shite top of populated areas 9+ feet underwater.


Those maps are a little tough to read, but they do a good job of highlighting worst case scenarios.

quote:

For each storm combination, parallel storms make landfall in 5 to 10 mile increments along the coast within the SLOSH grid, and the maximum storm surge footprint from each simulation is composited, retaining the maximum height of storm surge in a given basin grid cell.


They also assume high tide as a basis, so it's a Category 1-5 storm within 10 miles of the grids along the coast, arriving at high tide. If the map says you're dry from surge, it's a pretty safe bet.
Posted by slackster
Houston
Member since Mar 2009
91838 posts
Posted on 9/10/18 at 1:09 pm to
quote:

Florence has gone buzzsaw.


She's also slowed down her strengthening, at least for now.

The central pressure is up to 944mb from 943mb an hour or so ago. Also, she's started a more WNW or even NW movement over the last 3 hours, but that was mostly expected.
Posted by NorthEndZone
Member since Dec 2008
14276 posts
Posted on 9/10/18 at 1:09 pm to
Latest HMON and HWRF...both are still inland over NC after 126 hours.



Posted by geauxtigers87
Louisiana
Member since Mar 2011
27416 posts
Posted on 9/10/18 at 1:13 pm to
Gfs has this thing sitting offshore at 902mb at hour 150 holy shite
Posted by LSUFanHouston
NOLA
Member since Jul 2009
40997 posts
Posted on 9/10/18 at 1:14 pm to
When will the NHC start with the 3 hour intermediate advisories. I know they have rules and procedures they follow with this stuff, issuing watches, etc, but should they early issue something to kind of make sure people are paying attention?
Posted by GetCocky11
Calgary, AB
Member since Oct 2012
53509 posts
Posted on 9/10/18 at 1:14 pm to


Posted by Duke
Dillon, CO
Member since Jan 2008
36494 posts
Posted on 9/10/18 at 1:21 pm to
Euro holding form down toward Wilmington and realistic pressure coming in. In like generally with the now ocean coupled HMON and HWRF. Certainly more reasonable than a sub 910 parked off the coast for days. The big hint from the GFS is the slowdown. Steering gets weak.

Convection on Florence has died down a little. Think we're hitting the plateau for now.
Posted by jefffan
Florence- Sumter- Columbia, SC
Member since Sep 2013
4971 posts
Posted on 9/10/18 at 1:21 pm to
These aren't good for eastern SC.

Thought there would be an update at 2?
Posted by tokenBoiler
Lafayette, Indiana
Member since Aug 2012
5046 posts
Posted on 9/10/18 at 1:24 pm to
quote:

I think this may actually fit the billing of the name DOOMCANE

Wait until it starts spawning the sharknados.
Posted by slackster
Houston
Member since Mar 2009
91838 posts
Posted on 9/10/18 at 1:27 pm to
12z Euro has Florence at 944mb making landfall on Bald Head Island, NC, immediately south of Wilmington, NC.

That's disastrous news for Wilmington from a surge standpoint.

FWIW, the 12z Euro also says Florence would be at 973mb right now, and she's at 944mb instead.
Posted by When in Rome
Telegraph Road
Member since Jan 2011
36223 posts
Posted on 9/10/18 at 1:27 pm to
Man, I know it's said all the time, but the posters on this board are awesome. Thanks to everyone who is contributing their knowledge to this thread and all weather-related threads.
Posted by Chad504boy
4 posts
Member since Feb 2005
178838 posts
Posted on 9/10/18 at 1:29 pm to
when does Florence gets its own stickied thread? SC/NC residents deserve it.
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