Situation Report  
   
 
SummaryLast Update: May 24 2016 4:30PM

BASED ON CONDITIONS AT TIME OF LAST UPDATE:

At Tom Miller Dam, one floodgate remains partially open to pass the releases from Mansfield Dam through Lake Austin. LCRA plans to close the floodgate at Tom Miller Dam on Thursday, May 26 at 12:01 a.m. LCRA continues hydroelectric generation at all dams to pass excess inflows to the Highland Lakes - lakes Buchanan, Inks, LBJ, Marble Falls, Travis and Austin.

The Colorado River is slightly above Action or Bankfull stage and falling slowly at Wharton. All other locations from Austin to Matagorda are below Action stage. For the latest information about predicted river levels, see the forecast links in the River Levels and Forecasts section below.

Forecasts and operational plans can change quickly with additional rainfall. Unscheduled releases from the Highland Lakes dams may occur suddenly and unexpectedly at any time to pass inflows to the lakes or other reasons. The public should exercise caution and avoid being in the water near the dams at all times.

See the Central Texas 5-Day Forecast for the latest weather updates from LCRA meteorologist, Bob Rose.

See the River Report for current information about LCRA's daily water supply operations and long-range forecasts for lakes Buchanan and Travis.

 
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  Current Lake Levels at Dams and Gate Operations
*Disclaimer: Data is automatically retrieved and subject to revision.
Lake/DamTimeHead Elevation (Above Dam)Tail Elevation (Below Dam)Gate Operations/Spillway
Buchanan/BuchananMay 24 2016 6:15PM1017.67887.76May 24 2016 3:19PM At Buchanan Dam, no gate operations for flood are expected at this time.
Inks/InksMay 24 2016 6:15PM887.29826.82May 24 2016 3:19PM At Inks Dam, flow over the spillway is not expected at this time. (Inks Dam has a spillway, but no floodgates.)
LBJ/WirtzMay 24 2016 6:15PM824.60740.81May 24 2016 3:19PM At Wirtz Dam, no gate operations for flood are expected at this time.
Marble Falls/StarckeMay 24 2016 6:15PM736.34683.73May 24 2016 3:19PM At Starcke Dam, no gate operations for flood are expected at this time.
Travis/MansfieldMay 24 2016 6:15PM683.18494.69May 24 2016 3:21PM At Mansfield Dam, no gate operations for flood are expected at this time.
Austin/MillerMay 24 2016 6:15PM492.19432.05May 24 2016 3:22PM At Tom Miller Dam, one floodgate remains partially open.
 
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  Lake Levels Over the Last 7 Days
*Disclaimer: Data is automatically retrieved and subject to revision.
Floodgate Operations and Forecasts  
 
Lake Buchanan
Last Update: May 24 2016 3:19PM

Inflows: Inflows to Lake Buchanan are below levels that require flood operations.

Gate Operations: At Buchanan Dam, no gate operations for flood are expected at this time.

Lake level forecast (Forecast is subject to change as conditions develop): Lake Buchanan is expected to remain between 1,017 to 1,018 feet above msl.
 
 
Inks Lake
Last Update: May 24 2016 3:19PM

Inflows: Inflows are below levels that would require flood operations.

Spillway: At Inks Dam, flow over the spillway is not expected at this time. (Inks Dam has a spillway, but no floodgates.)

Lake level forecast (Forecast is subject to change as conditions develop): Inks Lake is expected to remain within its normal operating range.
 
 
Lake LBJ
Last Update: May 24 2016 3:19PM

Inflows: Inflows to Lake LBJ are below levels that require flood operations.

Gate Operations: At Wirtz Dam, no gate operations for flood are expected at this time.

Lake level forecast (Forecast is subject to change as conditions develop): Lake LBJ is expected to remain within its normal operating range.
 
 
Lake Marble Falls
Last Update: May 24 2016 3:19PM

Inflows: Inflows to Lake Marble Falls are below levels that require flood operations.

Gate Operations: At Starcke Dam, no gate operations for flood are expected at this time.

Lake level forecast (Forecast is subject to change as conditions develop): Lake Marble Falls is expected to remain within its normal operating range.
 
 
Lake Travis
Last Update: May 24 2016 3:21PM

Inflows: Inflows to Lake Travis have fallen. Lake Travis remains above its water supply pool elevation of 681 feet msl.

Gate Operations: At Mansfield Dam, no gate operations for flood are expected at this time.

Lake level forecast (Forecast is subject to change as conditions develop): Lake Travis is expected to fall slowly to between 682 to 683 feet above msl over the next several days.
 
 
Lake Austin
Last Update: May 24 2016 3:22PM

Inflows: Inflows to Lake Austin remain elevated due to releases from Mansfield Dam.

Gate Operations: At Tom Miller Dam, one floodgate remains partially open.

Lake level forecast (Forecast is subject to change as conditions develop): Lake Austin is expected to remain within its normal operating range.
 
 
LCRA does not own or operate Lady Bird Lake and Longhorn Dam. Lake levels are shown for information, but forecasts are not available.  
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  River Levels and Forecasts
 
  River forecasts are provided by the National Weather Service River Forecast Center. Click on the "Forecast" link to view the forecast and other useful information for each location.
 
 
*Disclaimer: Data is automatically retrieved and subject to revision.
Bank Full Stage Flood Stage
Upper Basin LocationBank Full Stage(ft)Flood Stage(ft)Current Stage(ft)Current Flow(cfs)Latest Forecast And More
Colorado River at Winchell24.026.0 2.83 39Forecast
Pecan Bayou near Mullin20.040.0 3.47 624Forecast
San Saba River at Menard12.018.0 2.97 35Forecast
San Saba River near Brady16.030.0 2.76 123Forecast
San Saba River at San Saba20.024.0 4.46 426Forecast
Colorado River near San Saba25.030.0 4.35 1152Forecast
Llano River near Junction12.016.0 2.69 178Forecast
Llano River near Mason6.013.0 1.80 262Forecast
Beaver Creek near Mason9.012.0 1.97 12Forecast
Llano River at Llano10.010.0 1.89 332Forecast
Sandy Creek near Kingsland8.012.0 5.34 37Forecast
Pedernales River near Fredericksburg12.022.0 6.16 103Forecast
Pedernales River near Johnson City13.014.0 10.61 242Forecast
 
 
Lower Basin LocationBank Full Stage(ft)Flood Stage(ft)Current Stage(ft)Current Flow(cfs)Latest Forecast And More
Barton Creek at Loop 360, Austin8.08.0 4.39 347Forecast
Colorado River at Austin25.033.0 19.45 7036Forecast
Onion Creek at Hwy 183, Austin15.017.0 7.85 367Forecast
Colorado River at Bastrop14.023.0 10.17 8114Forecast
Colorado River at Smithville10.020.0 8.31 8721Forecast
Colorado River above La Grange19.026.0 12.39 8184Forecast
Colorado River at Columbus30.034.0 18.80 9424Forecast
Colorado River at Wharton20.039.0 20.48 9935Forecast
Colorado River at Bay City23.044.0 18.63 14767Forecast
San Bernard River at East Bernard13.017.0 14.16 745Forecast
Colorado River at Matagorda4.88.8 3.09  Forecast
 
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  Useful Links
 
  LCRA Hydromet Real Time Data
http://hydromet.lcra.org/

LCRA Weather Summary
http://www.lcra.org/water/river-and-weather/weather-summary/Pages/default.aspx

How LCRA's System of Dams Works
http://www.lcra.org/water/floods/Pages/how-lcra-system-of-dams-works.aspx

Key elevations for Lake Travis during floods
http://www.lcra.org/water/flood/laketravisreleases.html

Emergency Information for City of Austin (includes boating restrictions)
http://www.austintexas.gov/department/hsem

Road Closures in Austin and Surrounding Areas (hosted by City of Austin)
http://www.atxfloods.com/

USGS Real-time Streamflow for Texas
http://waterdata.usgs.gov/tx/nwis/current/?type=flow

USGS Real-time Lakes and Reservoirs for Texas
http://waterdata.usgs.gov/tx/nwis/current?type=lake

NWS 5-day Rain Forecasts
http://www.wpc.ncep.noaa.gov/qpf/day1-5.shtml

NWS West Gulf River Forecast Center Quick Briefing
http://www.srh.noaa.gov/wgrfc/HMDmain.php

NWS San Angelo Weather Office and Flood Forecasts Map
http://water.weather.gov/ahps2/index.php?wfo=sjt

NWS Austin/San Antonio Weather Office and Flood Forecasts Map
http://water.weather.gov/ahps2/index.php?wfo=ewx

NWS Houston/Galveston Weather Office and Flood Forecasts Map
http://water.weather.gov/ahps2/index.php?wfo=hgx

NWS Doppler Radars
http://radar.weather.gov/ridge/Conus/southplains.php
http://radar.weather.gov/ridge/Conus/full_loop.php

NWS Storm Prediction Center (Tornadoes and severe storms)
http://www.spc.noaa.gov

NWS National Hurricane Center (Hurricanes and tropical storms)
http://www.nhc.noaa.gov

 
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  Words and Definitions
 
 

Water Glossary

Action Stage: The stage at which some sort of action is taken for a point along the river. Action Stage is different for all points depending on the community's needs - it may be flooding of secondary roads or just a "heads up" that the river is rising. Action Stage is determined by the National Weather Service. Sometimes used interchangeably with Bank Full Stage.

Bank Full Stage: The stage at which a river will not overflow its river banks or cause any significant damage within the river reach. Bank Full Stage is determined by the National Weather Service. Sometimes used interchangeably with action stage.

Cubic Feet per Second (cfs): A measure of streamflow. One CFS is equal to about 450 gallons per minute.

Elevation: The height of water in a lake or reservoir above mean sea level.

Flash Flood: A flood which follows within a few hours of heavy or excessive rainfall.

Flash Flood Warning: Flash flooding has been reported or is imminent – take necessary precautions.

Flash Flood Watch: Flash flooding is possible within the designated watch area – be alert.

Floodgates: Solid gates that are opened as needed to release floodwaters.

Flood Stage: The stage at which roads or buildings begin to get affected. Flood Stage is determined by the National Weather Service.

Hydrogeneration: Using water that is passed through a dam to generate electrical power with a turbine.

Mean Sea Level (msl): The elevation of the ocean halfway between high and low tide. Elevations are measured in feet above mean sea level as a point of reference.

Operating Range: The elevations between which the lakes are operated during normal conditions. Lake levels can fluctuate outside of these ranges at times.

Pass-Through Lakes: Lakes designed to allow water to pass through as opposed to being stored. Pass-through lakes do not have a constant level. Lakes Inks, LBJ, Marble Falls and Austin are "pass-through" lakes.

Spillway: The area of a dam that is designed to allow water to flow freely over it.

Stage: The height of water flowing in a river above a nearby reference point, for example, the height of the water above the river bed.

 
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