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Hydrograph River at a Glance Download
Pecan Bayou at Lake Brownwood Stage (ft)USGS--Water Resources of the United StatesLBWT2(plotting HPIRG) Graph Created (10:07AM May 19, 2024)
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Tabular Data (CDT)
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Datum: NGVD29
NOTE: River forecasts for this location take into account past precipitation and the precipitation amounts expected approximately 24 hours into the future from the forecast issuance time.

NOTE: Forecasts are not available for the Pecan Bayou at Lake Brownwood. Only observed stages are available for this point.

Vertical Datum references a local datum

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Upstream Gauge - near Cross Cutt Upstream Gauge Downstream Gauge Downstream Gauge - at Brownwood
Flood Categories (in feet)
Major Flood Stage: 0
Moderate Flood Stage: 0
Flood Stage: 0
Action Stage: 1424.5
Low Stage (in feet): 0

Historic Crests
(1) 1,432.60 ft on 12/21/1991
(2) 1,432.12 ft on 07/07/2002
(3) 1,430.90 ft on 05/02/1956
(4) 1,429.90 ft on 06/12/1951
(5) 1,429.90 ft on 04/27/1990
(6) 1,429.40 ft on 06/03/1986
(7) 1,429.20 ft on 11/17/2004
(8) 1,429.20 ft on 06/28/2007
(9) 1,428.90 ft on 05/26/1957
(10) 1,428.80 ft on 01/22/1968
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 1,429.20 ft on 06/28/2007
(2) 1,429.20 ft on 11/17/2004
(3) 1,432.12 ft on 07/07/2002
(4) 1,432.60 ft on 12/21/1991
(5) 1,429.90 ft on 04/27/1990
(6) 1,429.40 ft on 06/03/1986
(7) 1,428.60 ft on 06/27/1982
(8) 1,426.00 ft on 09/25/1971
(9) 1,428.80 ft on 01/22/1968
(10) 1,428.90 ft on 05/26/1957
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
Currently none available.
Zoom Level:16
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Gauge LocationGauge Map Marker
Latitude/Longitude Disclaimer: The gauge location shown in the above map is the approximate location based on the latitude/longitude coordinates provided to the NWS by the gauge owner.
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If you notice any errors in the below information, please contact our Webmaster
1449.5 Elevation of Top of Dam (above mean sea level).
1424.6 Elevation of Conservation Pool.Elevation of spillway (above mean sea level) located 800 feet left (north) of dam.Spillway is a concrete sill on natural cut approximately 479 feet in length.
About This Location Collapse

Latitude: 31.836944° N, Longitude: 99.003611° W, Horizontal Datum: Unknown

River Stage
Reference Frame
Gauge Height Flood Stage Uses
NWS stage 0 ft Not Available Interpreting hydrographs and NWS watch, warnings, and forecasts, and inundation maps
Vertical Datum Elevation
(gauge height = 0)
(gauge height = flood stage)
Elevation information source
NAVD88 Not Available Not Available Survey grade GPS equipment, FEMA flood plain maps, newer USGS topographic maps
NGVD 29 Not Available Not Available Older USGS topographic maps, NGVD29 benchmarks
MSL Not Available Not Available Older USGS topographic maps, MSL benchmarks
Other NULL NULL Prior to February 23, 1999, Historical Crests are based on a local datum (Reservoir Datum) that is approximately 0.5 ft higher than NGVD 1929.

Current/Historical Observations:

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The National Weather Service prepares its forecasts and other services in collaboration with agencies like the US Geological Survey, US Bureau of Reclamation, US Army Corps of Engineers, Natural Resource Conservation Service, National Park Service, ALERT Users Group, Bureau of Indian Affairs, and many state and local emergency managers across the country. For details, please click here.
NWS Information
National Weather Service
San Angelo Weather Forecast Office
7654 Knickerbocker Road
San Angelo, TX 76904
(325) 944-9445
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Page last modified: 2-Nov-2020 7:29 PM
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