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Hydrograph River at a Glance Download
Llano River at Llano Stage (ft)Flow (cfs)Observed: 2.42 ft at 5:00AM Oct 14, 2019Observed: 2.41 ft at 6:00AM Oct 14, 2019Observed: 2.42 ft at 7:00AM Oct 14, 2019Observed: 2.4 ft at 8:00AM Oct 14, 2019Observed: 2.44 ft at 9:00AM Oct 14, 2019Observed: 2.43 ft at 10:00AM Oct 14, 2019Observed: 2.42 ft at 11:00AM Oct 14, 2019Observed: 2.41 ft at 12:00PM Oct 14, 2019Observed: 2.42 ft at 1:00PM Oct 14, 2019Observed: 2.39 ft at 2:00PM Oct 14, 2019Observed: 2.39 ft at 3:00PM Oct 14, 2019Observed: 2.4 ft at 4:00PM Oct 14, 2019Observed: 2.39 ft at 5:00PM Oct 14, 2019Observed: 2.39 ft at 6:00PM Oct 14, 2019Observed: 2.38 ft at 7:00PM Oct 14, 2019Observed: 2.42 ft at 8:00PM Oct 14, 2019Observed: 2.39 ft at 9:00PM Oct 14, 2019Observed: 2.39 ft at 10:00PM Oct 14, 2019Observed: 2.39 ft at 11:00PM Oct 14, 2019Observed: 2.39 ft at 12:00AM Oct 15, 2019Observed: 2.38 ft at 1:00AM Oct 15, 2019Observed: 2.39 ft at 2:00AM Oct 15, 2019Observed: 2.39 ft at 3:00AM Oct 15, 2019Observed: 2.39 ft at 4:00AM Oct 15, 2019Observed: 2.39 ft at 5:00AM Oct 15, 2019Observed: 2.39 ft at 6:00AM Oct 15, 2019Observed: 2.39 ft at 7:00AM Oct 15, 2019Observed: 2.4 ft at 8:00AM Oct 15, 2019Observed: 2.4 ft at 9:00AM Oct 15, 2019Observed: 2.41 ft at 10:00AM Oct 15, 2019Observed: 2.41 ft at 11:00AM Oct 15, 2019Observed: 2.41 ft at 12:00PM Oct 15, 2019Observed: 2.41 ft at 1:00PM Oct 15, 2019Observed: 2.45 ft at 2:00PM Oct 15, 2019Observed: 2.42 ft at 3:00PM Oct 15, 2019Observed: 2.44 ft at 4:00PM Oct 15, 2019Observed: 2.43 ft at 5:00PM Oct 15, 2019Observed: 2.45 ft at 6:00PM Oct 15, 2019Observed: 2.43 ft at 7:00PM Oct 15, 2019Observed: 2.42 ft at 8:00PM Oct 15, 2019Observed: 2.44 ft at 9:00PM Oct 15, 2019Observed: 2.41 ft at 10:00PM Oct 15, 2019Observed: 2.43 ft at 11:00PM Oct 15, 2019Observed: 2.44 ft at 12:00AM Oct 16, 2019Observed: 2.46 ft at 1:00AM Oct 16, 2019Observed: 2.42 ft at 2:00AM Oct 16, 2019Observed: 2.46 ft at 3:00AM Oct 16, 2019Observed: 2.44 ft at 4:00AM Oct 16, 2019Observed: 2.46 ft at 5:00AM Oct 16, 2019Observed: 2.45 ft at 6:00AM Oct 16, 2019Observed: 2.44 ft at 7:00AM Oct 16, 2019Observed: 2.44 ft at 8:00AM Oct 16, 2019Observed: 2.45 ft at 9:00AM Oct 16, 2019Observed: 2.44 ft at 10:00AM Oct 16, 2019Observed: 2.44 ft at 11:00AM Oct 16, 2019Observed: 2.44 ft at 12:00PM Oct 16, 2019Observed: 2.46 ft at 1:00PM Oct 16, 2019Observed: 2.42 ft at 2:00PM Oct 16, 2019Observed: 2.42 ft at 3:00PM Oct 16, 2019Observed: 2.43 ft at 4:00PM Oct 16, 2019Observed: 2.44 ft at 5:00PM Oct 16, 2019Observed: 2.44 ft at 6:00PM Oct 16, 2019Observed: 2.44 ft at 7:00PM Oct 16, 2019Observed: 2.42 ft at 8:00PM Oct 16, 2019Observed: 2.44 ft at 9:00PM Oct 16, 2019Observed: 2.45 ft at 10:00PM Oct 16, 2019Observed: 2.43 ft at 11:00PM Oct 16, 2019Observed: 2.45 ft at 12:00AM Oct 17, 2019Observed: 2.45 ft at 1:00AM Oct 17, 2019Observed: 2.43 ft at 2:00AM Oct 17, 2019Observed: 2.44 ft at 3:00AM Oct 17, 2019Observed: 2.45 ft at 4:00AM Oct 17, 2019Observed: 2.45 ft at 5:00AM Oct 17, 2019Observed: 2.44 ft at 6:00AM Oct 17, 2019Observed: 2.45 ft at 7:00AM Oct 17, 2019Observed: 2.44 ft at 8:00AM Oct 17, 2019Observed: 2.43 ft at 9:00AM Oct 17, 2019Observed: 2.45 ft at 10:00AM Oct 17, 2019Observed: 2.44 ft at 11:00AM Oct 17, 2019Observed: 2.45 ft at 12:00PM Oct 17, 2019Observed: 2.44 ft at 1:00PM Oct 17, 2019Observed: 2.43 ft at 2:00PM Oct 17, 2019Observed: 2.48 ft at 3:00PM Oct 17, 2019Observed: 2.42 ft at 4:00PM Oct 17, 2019Observed: 2.41 ft at 5:00PM Oct 17, 2019Observed: 2.43 ft at 6:00PM Oct 17, 2019Highest Observation: 2.5 ft at 7:00PM Oct 17, 2019Observed: 2.43 ft at 8:00PM Oct 17, 2019Observed: 2.44 ft at 9:00PM Oct 17, 2019Observed: 2.46 ft at 10:00PM Oct 17, 2019Observed: 2.46 ft at 11:00PM Oct 17, 2019Observed: 2.47 ft at 12:00AM Oct 18, 2019Observed: 2.46 ft at 1:00AM Oct 18, 2019Observed: 2.46 ft at 2:00AM Oct 18, 2019Observed: 2.45 ft at 3:00AM Oct 18, 2019Observed: 2.44 ft at 4:00AM Oct 18, 2019Observed: 2.45 ft at 5:00AM Oct 18, 2019Observed: 2.47 ft at 6:00AM Oct 18, 2019Observed: 2.45 ft at 7:00AM Oct 18, 2019Observed: 2.45 ft at 8:00AM Oct 18, 2019Observed: 2.46 ft at 9:00AM Oct 18, 2019Observed: 2.47 ft at 10:00AM Oct 18, 2019Observed: 2.45 ft at 11:00AM Oct 18, 2019Observed: 2.46 ft at 12:00PM Oct 18, 2019Observed: 2.47 ft at 1:00PM Oct 18, 2019Observed: 2.47 ft at 2:00PM Oct 18, 2019Observed: 2.46 ft at 3:00PM Oct 18, 2019Observed: 2.45 ft at 4:00PM Oct 18, 2019Observed: 2.46 ft at 5:00PM Oct 18, 2019Observed: 2.47 ft at 6:00PM Oct 18, 2019Observed: 2.49 ft at 7:00PM Oct 18, 2019Observed: 2.46 ft at 8:00PM Oct 18, 2019Observed: 2.48 ft at 9:00PM Oct 18, 2019Observed: 2.48 ft at 10:00PM Oct 18, 2019Observed: 2.48 ft at 11:00PM Oct 18, 2019Observed: 2.46 ft at 12:00AM Oct 19, 2019Observed: 2.46 ft at 1:00AM Oct 19, 2019Observed: 2.47 ft at 2:00AM Oct 19, 2019Observed: 2.45 ft at 3:00AM Oct 19, 2019Observed: 2.46 ft at 4:00AM Oct 19, 2019USGS--Water Resources of the United StatesLLAT2(plotting HGIRZ) Graph Created (4:48AM Oct 19, 2019)ObservedLatest observed value: 2.46 ft at 4:00 AM CDT 19-Oct-2019. Flood Stage is 10 ft
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About this graph
Tabular Data (UTC)
Tabular Data (CDT)
XML Data
RSS Files
Datum: Not Available
Metadata
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 for the Llano River at Llano are issued as needed during times of high water, but are not routinely available.

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Upstream Gauge - at County Road 102 Upstream Gauge
Flood Categories (in feet)
Major Flood Stage: 23
Moderate Flood Stage: 12
Flood Stage: 10
Action Stage: 10
Low Stage (in feet): -9999

Historic Crests
(1) 41.50 ft on 06/14/1935
(2) 40.17 ft on 10/16/2018 (P)
(3) 40.04 ft on 10/16/2018 (P)
(4) 39.10 ft on 06/23/1997
(5) 32.60 ft on 09/10/1952
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 40.17 ft on 10/16/2018 (P)
(2) 40.04 ft on 10/16/2018 (P)
(3) 24.35 ft on 10/09/2018
(4) 12.63 ft on 06/01/2016
(5) 12.13 ft on 05/29/2015
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
Currently none available.

For more information on your flood risk go to www.floodsmart.gov.

Zoom Level:16
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Disclaimer
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.
Flood Impacts & Photos Collapse
If you notice any errors in the below information, please contact our Webmaster
38 Robinson City Park in Llano will flood. Many homes in Scotts Acres on south side of Llano will be severely damaged and lowest mobile homes destroyed in water up to 6 feet, some washing downstream. Many homes near Castell to below Llano will be damaged. The FM 2900 bridge in Kingsland will flood. Much of Kingsland Lodge in Kingsland will be destroyed. Many homes downstream in Marble Falls will flood as flow backs up Backbone Creek.
36 Disastrous life threatening flooding will damage numerous homes and businesses above Castell to Lake LBJ. Numerous resorts at and below Kingsland near the Llano River mouth will flood severely. Boats, docks and any gear that isn't removed from the river will be destroyed. Lower homes on Lake Travis flood severely. Flow exceeds the USGS 1:50 year flood level.
32 Disastrous flooding well into the flood plain will cut off and potentially drown thousands of livestock. Homes, resorts, commercial buildings, boats, docks and marinas will flood disastrously above Castell to Marble Falls on Lake LBJ. Roads and bridges near the river will be severely flooded and dangerous to motorists. Exceeds the USGS 1:25 year flood.
30 Disastrous flooding will reach lowest residences below Castell to below Llano. Flow will be to the slab of the city of Llano water treatment plant on the right bank just above Highway 16. Numerous resorts at Kingsland and in Lake LBJ will have severe flood damage. Boats, docks and facilities lining the lower Llano and Lake LBJ near Kingsland may be severely damaged or destroyed.
26 Major flooding will threaten lowest homes from upstream near Castell to below Llano. Major damage will occur downsteam in Kingsland to boats and docks. Secondary and primary roads and bridges in the flood plain will be extremely dangerous to motorists. Lowest homes and businesses in the Highland Lakes below Kingsland will be flooded.
23 Major lowland flooding makes primary and secondary roads and low bridges near the river and tributaries dangerous. Boats and docks are severely inundated downstream near and in Kingsland. Lowest resorts near the Llano River mouth in Kingsland flood.
20 Flow will be damaging to docks and boats downstream in Kingsland. The lowest secondary roads and bridges will be severely flooded and dangerous. Near the USGS 1:5 year flood level.
16 Moderate lowland flooding threatens docks and boats in the flood plain downstream in Kingsland. Secondary roads and bridges will be flooded and dangerous to motorists. Flow exceeds the USGS 1:2 year flood level.
12 Moderate lowland flooding makes secondary roads and low bridges in the flood plain dangerous to motorists. Equipment should be moved from low docks and boat ties loosened downstream in Kingsland.
10 Minor lowland flooding can swamp boats in the lower Llano River in Kingsland.
About This Location Collapse

Latitude: 30.751111° N, Longitude: 98.669444° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame
Gauge Height Flood Stage Uses
NWS stage 0 ft 10 ft Interpreting hydrographs and NWS watch, warnings, and forecasts, and inundation maps
Vertical Datum Elevation
(gauge height = 0)
Elevation
(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 29 970.01 ft 980.01 ft Older USGS topographic maps, NGVD29 benchmarks
MSL Not Available Not Available Older USGS topographic maps, MSL benchmarks
Other Not Available Not Available  

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
Austin/San Antonio Weather Forecast Office
2090 Airport Rd.
New Braunfels, TX 78130
(830) 629-0130
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Page last modified: 1-Mar-2019 12:34 AM
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