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re: Tropical Storm Nicholas - Flash Flood Watch for South Louisiana

Posted on 9/13/21 at 7:39 am to
Posted by udtiger
Over your left shoulder
Member since Nov 2006
99844 posts
Posted on 9/13/21 at 7:39 am to
Updated rainfall projections:
Posted by supadave3
Houston, TX
Member since Dec 2005
30362 posts
Posted on 9/13/21 at 7:50 am to
Well at least Houston looks like the west side of the storms impact. A nudge east would be great for me, but terrible for those in Western LA. Not going to wish a flood on anyone. Let’s hope this storm doesn’t pack a lot of rain with it so the effects are minimal for both paths. Stay safe, folks!
Posted by TigerstuckinMS
Member since Nov 2005
33687 posts
Posted on 9/13/21 at 7:55 am to
quote:

When is latest you would want to fly into Houston before this hits?


Chickens can't fly that far.
Posted by kballa6
Houston
Member since Mar 2009
4082 posts
Posted on 9/13/21 at 8:04 am to
I'm in Pearland. Didn't flood in Harvey but a lot of road development behind the house has me concerned over drainage. Has been raining on and off since ~5am already. Schools closed today and probably tomorrow.
Posted by rds dc
Member since Jun 2008
19846 posts
Posted on 9/13/21 at 8:12 am to
Last night's center consolidation on the northern end of the axis resulted in some potentially positive changes. That jump looks like it might be enough to allow this to get moved out before the ridge builds in. Models show this being far enough NE to prevent the stall over Texas. It soes increase the threat of heavy rain over Louisiana but totals aren't looking that bad at this time.
Posted by Gene Heinous
Member since Sep 2021
376 posts
Posted on 9/13/21 at 8:20 am to
quote:

Last night's center consolidation on the northern end of the axis resulted in some potentially positive changes. That jump looks like it might be enough to allow this to get moved out before the ridge builds in. Models show this being far enough NE to prevent the stall over Texas. It soes increase the threat of heavy rain over Louisiana but totals aren't looking that bad at this time.




Forward movement has slowed to 5 mph in a NNW direction.
Posted by The Boat
Member since Oct 2008
164652 posts
Posted on 9/13/21 at 8:42 am to
Looks like a sloppy shite stain on radar
Posted by Icansee4miles
Trolling the Tickfaw
Member since Jan 2007
29342 posts
Posted on 9/13/21 at 8:44 am to
You know how those calculations are done? Developers (mostly crooks, at least in EBR) get an engineer to certify that their little swimming pool sized detention ponds will contain the runoff from their new subdivision for a modest storm. The calculations assume that water is flowing out as fast as it’s flowing in. When the receiving stream is too full to accept that water, it, and everything upstream starts back flowing and floods areas that have never flooded. The entire Bayou Fountain/Bayou Manchac drainage basin is a great case study in this. A quick PE rubber stamp, some financial contributions to the right Metro Council members, maybe some payouts to “Planning” Commission members, and all developments get rolled right on through without opposition, never mind local opposition and evidence of existing drainage issues and flooding. Typical Louisiana politics, follow the money
Posted by Tiger Ryno
#WoF
Member since Feb 2007
103321 posts
Posted on 9/13/21 at 8:56 am to
Thanks for The encouraging report. We had a strong band this morning in E fort bend county. Some minor street issues but heavy stuff coming later. School out early today and canceled tomorrow.
Posted by bnb9433
Member since Jan 2015
13807 posts
Posted on 9/13/21 at 9:03 am to
im in W Fort bend Brookshire/Katy line
Posted by Oates Mustache
Member since Oct 2011
22384 posts
Posted on 9/13/21 at 9:13 am to
It's time for some Tabasco hand jobs!

Posted by Suntiger
BR or somewhere else
Member since Feb 2007
33038 posts
Posted on 9/13/21 at 9:26 am to
quote:

Last night's center consolidation on the northern end of the axis resulted in some potentially positive changes. That jump looks like it might be enough to allow this to get moved out before the ridge builds in. Models show this being far enough NE to prevent the stall over Texas.


That’s good.

quote:

It soes increase the threat of heavy rain over Louisiana


Don’t like that!

quote:

It's time for some Tabasco hand jobs!


Posted by Tex Longhorn
Member since Aug 2021
402 posts
Posted on 9/13/21 at 9:35 am to
Hoping Nick keeps self-identifying as Tyrone and never gets it together.
Posted by Cosmo
glassman's guest house
Member since Oct 2003
120783 posts
Posted on 9/13/21 at 9:35 am to
6-10” of rain over 2 days is manageable particularly with rivers and coulees low right now

15-20” is where you get into trouble
Posted by AnthonyJenningsPrais
Baton Rouge
Member since Dec 2020
154 posts
Posted on 9/13/21 at 9:48 am to
I hope Port Aransas survives. That place is beautiful.
Posted by The Boat
Member since Oct 2008
164652 posts
Posted on 9/13/21 at 9:54 am to
You can see the dueling mid and low level centers on Brownsville radar. Pretty badass.
Posted by Teddy Ruxpin
Member since Oct 2006
39648 posts
Posted on 9/13/21 at 10:01 am to
That map omitting Austin makes me
Posted by LSUJuice
Back in Houston
Member since Apr 2004
17693 posts
Posted on 9/13/21 at 10:14 am to
quote:

6-10” of rain over 2 days is manageable particularly with rivers and coulees low right now

True. Mostly. Assuming the worst rainfall stays down in SE Harris County, Clear Creek and its tribs and Armand Bayou and its tribs in will get awfully full.

Plus, if that 6-10 inches falls in 6-8 hours, I also worry about Brays, Greens, and Halls.
Posted by mightynine
Member since May 2006
1204 posts
Posted on 9/13/21 at 10:28 am to
quote:

You can see the dueling mid and low level centers on Brownsville radar. Pretty badass.


quote:


This post was edited on 9/13/21 at 10:29 am
Posted by Chad504boy
4 posts
Member since Feb 2005
167137 posts
Posted on 9/13/21 at 10:30 am to
Is this the disturbance that the GFS had rocking NOLA on 9/16 right after Ida effed our shite up?
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