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2018 Rain Thread


Hollywood

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4 minutes ago, Anastasis said:

so we're like one more rain event away from some crazy shit going down, huh?

Pretty much.  Every lake and river everywhere is at flood stage or worse at this point.  There's just no where to put the water.  Travis is a more a pass through than anything.  It's Lake Austin folks that could have some real headaches soon.

 

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47 minutes ago, hornian said:

So is Buchanan. 

They've been doing work on Buchanan Dam and need it at 1018 or less.

As said before, it isn't designed to hold much more, either. They pull the trigger on those gates quickly, and there's a lot of them. 

Edited by Deej
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The difference of water on Lake Travis beteen 665’ and 685’ is VASTLY different from 685’ to 705’.  

A lot more water is going to go into Travis over the next few days but unless something drastic happens, the elevation increase should begin to slow considerably due to the amount of “horizontal” acreage.  

Not all feet are created equal when it comes to Lake Travis and Mansfield Dam.   

Edited by Chet Steadman
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8 minutes ago, troph said:


Just amazing really. 651-652 to 687 in no time. Incredible.

687 is so 1.5 hours ago.  Kissing up against 689 now.  Llano is still flowing at 2.5 AC-FT/Sec with the Colorado arm about to start ripping as well.  

Edited by USCATX
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They posted this a little earlier. 

Quote

 

Flood operations at Buchanan Dam began at 10 p.m. on Thursday, Oct. 16. LCRA plans to open one floodgate an hour for four hours, for a total of four floodgates. Take action to protect people and property.

The gates will be opened in this order:
10 p.m.: One gate from the 14-gate section.
11 p.m.: One gate from the 16-gate section.
Midnight: One gate from the 14-gate section.
1 a.m.: One gate from the 16-gate section. 

Lake Buchanan is forecast to rise to 1,018 to 1,020 feet msl and then be gradually drawn by flood releases to 1,018 feet msl over the following day or two.

 

 

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What the hell is up with their projections - lake travis will be between 690-695 over the next 2 days, shit is already at almost 692. Just got done cleaning out the garage & hoping no water is in the house in a few hours, but if it keeps coming a ft an hour, it will be.


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9 hours ago, NaTeWHO said:

Long way to go for that...

Top 10 highest levels for Lake Travis

Rank

Date

Height (msl)

1

Dec. 25, 1991 710.44

2

May 18, 1957 707.38

3

June 25, 1997 705.11

4

Feb. 9, 1992 704.68

5

July 6, 2007 701.51

6

Nov. 25, 2004 696.70

7

July 7, 2002 693.50

8

June 14, 1987 693.48

9

June 16, 2016 692.69

10

Oct. 7, 1959

692.58

Wed 12:30AM - Just moved above 693.  to 693.16     9th highest All Time!!!   Only 0.32 short of the 7th all time highest level.   

I'm not sure how much the volume increases, but it's still going up more than a foot an hour and there is rain forecast for days. seems like 700 is possible.

 

 

 

 

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Friend of mine was displaced around the LBJ area, house was flooded out.  Said there were looters running around the neighborhood already.  Her bf stayed behind, so hopefully those looters got a few ounces of lead, too.

 

Also, Travis is at 696.42, and OU STILL SUCKS

Edited by PvilleStang
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BTW:

Quote
Wednesday, October 17
6:00pm
 *Cancelled* - Round Rock Flood/Flash Flood Training, City of Round Rock - Click Here for Details
WhenWed, October 17, 6pm – 8pm
Where 30.541815, -97.688291 (map)
Description

Flood and Flash Flood Training

This is cancelled....due to weather.  It may be rescheduled.

Location: Round Rock Public Safety Training Center
                  2801 N. Mays 
                 Round Rock, TX 78665
  
Time:   cancelled.

Notes:  This is Flood and Flash Flood Training.  The National Weather Service is teaming up with the City of Round Rock to present a training solely talking about flooding issues, the meteorology behind flooding and the impacts to Travis and Williamson County.  Details will be presented to the audience on how the citizens can get flood updates and get notifications from the city, county, and the National Weather Service

 

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14 hours ago, Texas Jeff said:

Crazy numbers. One acre-foot of water is 43,460 cubic feet of water.  Today, the Llano River is dumping 3-4 cubic acres of water into Lake LBJ per second, or around 13 thousand cubic-acres per hour, or around Jimmy's number of 310K acre feet per day.

Lake Travis was 77% full yesterday and it's full today.  Rain is in the forecast off and on for the next four days.  Time to root for the forcefield.

 

 

Jesus this math makes my head hurt. Thank god you aren't an engineer.

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2 hours ago, utee94 said:

696.23 right now at 6:40 AM.  Definitely slowing.  If we can avoid major rains for a few days that would be helpful.

(Obligatory: It's never going to stop raining again)

 

Now a slug released from Buchanan is coming downstream. And seems like it will keep raining up north of that today. More water on the way for Lake Travis. 

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So according to uslakes.com, Travis went from 667 to 691 yesterday. Twenty four fucking feet in 24 hours. Is that the largest single-day rise in history? Even the memorial day flood didn't put this much water in the lake. Did the Lake Travis basin just get hammered in a way that we didn't get it in Austin? It's been raining on and off, sometimes heavy, but it hasn't seemed like this has been a particularly catastrophic amount of rain. Was it just that the ground was already saturated? This seems like a lot of water from not a "noah's arc" amount of rain. 

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