We need Rain !

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Texjbq
Posts: 110
Joined: Tue Sep 23, 2014 3:42 pm
Location: San Marcos, TX

Re: We need Rain !

Post by Texjbq » Tue Oct 09, 2018 10:02 am

Looks like we dodged a major flood event (*Assuming as of 10 AM 10/9, the big cell currently moving over the watershed doesn't stall and stay strong*). Regardless, Lake will be at pool and then some in a few days.

Jimbo Roberts
Posts: 1378
Joined: Fri Nov 08, 2002 8:26 am
Location: San Antonio, TX

Re: We need Rain !

Post by Jimbo Roberts » Sun Oct 14, 2018 12:01 am

It's looking to be another very wet week in Central Texas.
If the forecasts are correct we are going to get close to pool soon.

Tom tom tom tom.....
Tom tom tom tom.....
Tom tom tom tom.....

Jimbo

Texjbq
Posts: 110
Joined: Tue Sep 23, 2014 3:42 pm
Location: San Marcos, TX

Re: We need Rain !

Post by Texjbq » Tue Oct 16, 2018 7:31 am

The Kerrvile Gauge is at over 36,000 right now. 10/16 AM. We will see extended high rates of release. From famine to feast all over again.
Last edited by Texjbq on Tue Oct 16, 2018 9:42 am, edited 1 time in total.

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wiscoy
Posts: 113
Joined: Wed Aug 16, 2006 11:43 am
Location: Spring Branch, Texas

Re: We need Rain !

Post by wiscoy » Tue Oct 16, 2018 7:39 am

Lastest Facebook post from GBRA:

GBRA of Texas
15 hrs ago

Recent rainfall and increased inflows into Canyon Reservoir are raising its level to near-full capacity. Once the reservoir reaches the maximum conservation pool level of 909’ above mean sea level (msl), releases from Canyon Dam will increase to evacuate the additional water.

Under the direction of the U.S. Army Corps of Engineers (USACE), GBRA will manage the near-term releases from the reservoir to account for rainfall over the lake and inflow in order to maintain a conservation pool elevation of 909’ msl. In general, flows downstream of Canyon Dam will be comparable to those measured upstream of the reservoir at Spring Branch.

In recent years, USACE has enabled GBRA to make releases to lower the lake when elevations are between 909’ and 911’. USACE maintains authority over releases and can increase flows up to 5,000 cubic feet per second (cfs) if elevations rise above 911’ msl or as conditions warrant. Once the lake elevation falls below 909’, flows will return to a lower release rate of approximately 90-100 cfs.
Property owners, recreationalists and other stakeholders should take notice of the changing river flows.

Additional information about Canyon releases and other stream flow data may be found at https://bit.ly/2NI2HTz

Hopefully we will maintain most of our cold water.

Wiscoy

Texjbq
Posts: 110
Joined: Tue Sep 23, 2014 3:42 pm
Location: San Marcos, TX

Re: We need Rain !

Post by Texjbq » Tue Oct 16, 2018 8:06 am

Luckily as far as trout survival goes, this is happening as we go into cooler weather. The cold understory it looks like we are going to lose will be replaced with winter temperatures. I feel bad for those along the Llano.
Last edited by Texjbq on Tue Oct 16, 2018 9:43 am, edited 1 time in total.

Cassio
Posts: 190
Joined: Sat Oct 08, 2016 12:57 pm

Re: We need Rain !

Post by Cassio » Tue Oct 16, 2018 8:18 am

I fished the river yesterday at around 100cfs. What a difference it already was compared to the 30-50cfs we have been seeing. Fish were stacked up in deep pools, hopefully a nice bump in flows will have them moving and looking for new homes.

Texjbq
Posts: 110
Joined: Tue Sep 23, 2014 3:42 pm
Location: San Marcos, TX

Re: We need Rain !

Post by Texjbq » Tue Oct 16, 2018 9:42 am

EDIT: NWS says this data is no good. River probably didn't get this high.
Image

EDIT: NWS says this data is no good. River probably didn't get this high. This is now a very serious one for the Guadalupe as well as the Llano. Guadalupe @ Kerrville currently above 70,000 CFS and rising.
Last edited by Texjbq on Tue Oct 16, 2018 1:50 pm, edited 1 time in total.

Texjbq
Posts: 110
Joined: Tue Sep 23, 2014 3:42 pm
Location: San Marcos, TX

Re: We need Rain !

Post by Texjbq » Tue Oct 16, 2018 10:09 am

EDIT: NWS says this data is no good. River probably didn't get this high.
Image

EDIT: NWS says this data is no good. River probably didn't get this high.
Now as of 9:45AM it is at 129,000 CFS and rising. This is really bad.
Last edited by Texjbq on Tue Oct 16, 2018 1:51 pm, edited 1 time in total.

Jimbo Roberts
Posts: 1378
Joined: Fri Nov 08, 2002 8:26 am
Location: San Antonio, TX

Re: We need Rain !

Post by Jimbo Roberts » Tue Oct 16, 2018 11:13 am

Hitting Pool is a foregone conclusion now. The flows 100,000+ cfs will be coming down the upper Guadalupe to Spring Branch by tomorrow.
It will be interesting to see what GBRA will do. Will they hold an extra foot to 910cfs or will we could see them open the gates to release max flows around 5,000cfs. It will be a interesting to see what happens over the next few weeks.

Jimbo

Texjbq
Posts: 110
Joined: Tue Sep 23, 2014 3:42 pm
Location: San Marcos, TX

Re: We need Rain !

Post by Texjbq » Tue Oct 16, 2018 11:41 am

EDIT: NWS says this data is no good. River probably didn't get this high.
Image

EDIT: NWS says this data is no good. River probably didn't get this high.
The USGS CFS flow didn't do its last hourly update, I guess because it may be gone. It's last update when it read 129,000.00 the gage height was 27' high.

The gage heights most recent reading was 34.6'. I'm guessing the CFS at this level has to be in the 200,000 range.
Last edited by Texjbq on Tue Oct 16, 2018 1:52 pm, edited 1 time in total.

JWH
Posts: 49
Joined: Tue Mar 11, 2008 10:36 am

Re: We need Rain !

Post by JWH » Tue Oct 16, 2018 1:20 pm

We had this posted in our neighborhood.


County Commissioner, Precinct 4 Jen Crownover, Comal County Commissioner Precinct 4 AGENCY
FLOOD UPDATE:
Due to the rain received in the Kerrville area, the headwaters of the Guadalupe River, there will be a rise in the Guadalupe River heading into Canyon Lake.
Right now, the flow in Kerrville is around 129,000 CFS.
What this will look like in Comal County?
ABOVE Canyon Lake, we are bracing for approximately a 30’ rise in the river. There are road closures anticipated on FM 311, Rebecca Creek Road, and other low areas.
Please be prepared if you live above Canyon Lake.
CANYON LAKE: The Lake will be fine. It is more than prepared and able to hold this amount of water. THIS is why it is there. We are expecting approximately a 10’ rise in the lake at this time. Water releases will start soon, and will likely be at approximately 5000 CFS. The Corps is currently watching the downstream conditions before opening the gates.

Texjbq
Posts: 110
Joined: Tue Sep 23, 2014 3:42 pm
Location: San Marcos, TX

Re: We need Rain !

Post by Texjbq » Tue Oct 16, 2018 1:22 pm

USGS and NWS just said the Kerrville gage malfunctioned. They said on twitter it didn't reach record levels, but due to the malfunction, there's currently no accurate data.

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