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Hydrograph River at a Glance Download
Ayish Bayou near San Augustine Stage (ft)Flow (kcfs)Highest Observation: 11.17 ft at 5:45PM May 13, 2021Observed: 11.16 ft at 6:00PM May 13, 2021Observed: 11.15 ft at 6:15PM May 13, 2021Observed: 11.13 ft at 6:30PM May 13, 2021Observed: 11.12 ft at 6:45PM May 13, 2021Observed: 11.1 ft at 7:00PM May 13, 2021Observed: 11.09 ft at 7:15PM May 13, 2021Observed: 11.07 ft at 7:30PM May 13, 2021Observed: 11.05 ft at 7:45PM May 13, 2021Observed: 11.05 ft at 8:00PM May 13, 2021Observed: 11.03 ft at 8:15PM May 13, 2021Observed: 11.02 ft at 8:30PM May 13, 2021Observed: 10.99 ft at 8:45PM May 13, 2021Observed: 10.97 ft at 9:00PM May 13, 2021Observed: 10.96 ft at 9:15PM May 13, 2021Observed: 10.94 ft at 9:30PM May 13, 2021Observed: 10.93 ft at 9:45PM May 13, 2021Observed: 10.91 ft at 10:00PM May 13, 2021Observed: 10.89 ft at 10:15PM May 13, 2021Observed: 10.86 ft at 10:30PM May 13, 2021Observed: 10.86 ft at 10:45PM May 13, 2021Observed: 10.84 ft at 11:00PM May 13, 2021Observed: 10.82 ft at 11:15PM May 13, 2021Observed: 10.79 ft at 11:30PM May 13, 2021Observed: 10.77 ft at 11:45PM May 13, 2021Observed: 10.76 ft at 12:00AM May 14, 2021Observed: 10.73 ft at 12:15AM May 14, 2021Observed: 10.71 ft at 12:30AM May 14, 2021Observed: 10.68 ft at 12:45AM May 14, 2021Observed: 10.66 ft at 1:00AM May 14, 2021Observed: 10.65 ft at 1:15AM May 14, 2021Observed: 10.62 ft at 1:30AM May 14, 2021Observed: 10.59 ft at 1:45AM May 14, 2021Observed: 10.56 ft at 2:00AM May 14, 2021Observed: 10.55 ft at 2:15AM May 14, 2021Observed: 10.51 ft at 2:30AM May 14, 2021Observed: 10.48 ft at 2:45AM May 14, 2021Observed: 10.45 ft at 3:00AM May 14, 2021Observed: 10.43 ft at 3:15AM May 14, 2021Observed: 10.39 ft at 3:30AM May 14, 2021Observed: 10.36 ft at 3:45AM May 14, 2021Observed: 10.33 ft at 4:00AM May 14, 2021Observed: 10.29 ft at 4:15AM May 14, 2021Observed: 10.25 ft at 4:30AM May 14, 2021Observed: 10.21 ft at 4:45AM May 14, 2021Observed: 10.17 ft at 5:00AM May 14, 2021Observed: 10.13 ft at 5:15AM May 14, 2021Observed: 10.08 ft at 5:30AM May 14, 2021Observed: 10.03 ft at 5:45AM May 14, 2021Observed: 9.99 ft at 6:00AM May 14, 2021Observed: 9.93 ft at 6:15AM May 14, 2021Observed: 9.88 ft at 6:30AM May 14, 2021Observed: 9.83 ft at 6:45AM May 14, 2021Observed: 9.78 ft at 7:00AM May 14, 2021Observed: 9.72 ft at 7:15AM May 14, 2021Observed: 9.66 ft at 7:30AM May 14, 2021Observed: 9.6 ft at 7:45AM May 14, 2021Observed: 9.54 ft at 8:00AM May 14, 2021Observed: 9.48 ft at 8:15AM May 14, 2021Observed: 9.42 ft at 8:30AM May 14, 2021Observed: 9.36 ft at 8:45AM May 14, 2021Observed: 9.3 ft at 9:00AM May 14, 2021Observed: 9.24 ft at 9:15AM May 14, 2021Observed: 9.18 ft at 9:30AM May 14, 2021Observed: 9.12 ft at 9:45AM May 14, 2021Observed: 9.06 ft at 10:00AM May 14, 2021Observed: 8.99 ft at 10:15AM May 14, 2021Observed: 8.93 ft at 10:30AM May 14, 2021Observed: 8.89 ft at 10:45AM May 14, 2021Observed: 8.81 ft at 11:00AM May 14, 2021Observed: 8.76 ft at 11:15AM May 14, 2021Observed: 8.7 ft at 11:30AM May 14, 2021Observed: 8.65 ft at 11:45AM May 14, 2021Observed: 8.58 ft at 12:00PM May 14, 2021Observed: 8.53 ft at 12:15PM May 14, 2021Observed: 8.49 ft at 12:30PM May 14, 2021Observed: 8.42 ft at 12:45PM May 14, 2021Observed: 8.38 ft at 1:00PM May 14, 2021Observed: 8.33 ft at 1:15PM May 14, 2021Observed: 8.28 ft at 1:30PM May 14, 2021Observed: 8.23 ft at 1:45PM May 14, 2021Observed: 8.18 ft at 2:00PM May 14, 2021Observed: 8.14 ft at 2:15PM May 14, 2021Observed: 8.09 ft at 2:30PM May 14, 2021Observed: 8.05 ft at 2:45PM May 14, 2021Observed: 8.02 ft at 3:00PM May 14, 2021Observed: 7.98 ft at 3:15PM May 14, 2021Observed: 7.94 ft at 3:30PM May 14, 2021Observed: 7.91 ft at 3:45PM May 14, 2021Observed: 7.87 ft at 4:00PM May 14, 2021Observed: 7.84 ft at 4:15PM May 14, 2021Observed: 7.83 ft at 4:30PM May 14, 2021Observed: 7.78 ft at 4:45PM May 14, 2021Observed: 7.75 ft at 5:00PM May 14, 2021Observed: 7.72 ft at 5:15PM May 14, 2021Observed: 7.7 ft at 5:30PM May 14, 2021Observed: 7.68 ft at 5:45PM May 14, 2021Observed: 7.65 ft at 6:00PM May 14, 2021Observed: 7.63 ft at 6:15PM May 14, 2021Observed: 7.61 ft at 6:30PM May 14, 2021Observed: 7.58 ft at 6:45PM May 14, 2021Observed: 7.56 ft at 7:00PM May 14, 2021Observed: 7.54 ft at 7:15PM May 14, 2021Observed: 7.53 ft at 7:30PM May 14, 2021Observed: 7.5 ft at 7:45PM May 14, 2021Observed: 7.48 ft at 8:00PM May 14, 2021Observed: 7.47 ft at 8:15PM May 14, 2021Observed: 7.44 ft at 8:30PM May 14, 2021Observed: 7.43 ft at 8:45PM May 14, 2021Observed: 7.41 ft at 9:00PM May 14, 2021Observed: 7.39 ft at 9:15PM May 14, 2021Observed: 7.37 ft at 9:30PM May 14, 2021Observed: 7.35 ft at 9:45PM May 14, 2021Observed: 7.34 ft at 10:00PM May 14, 2021Observed: 7.32 ft at 10:15PM May 14, 2021Observed: 7.31 ft at 10:30PM May 14, 2021Observed: 7.28 ft at 10:45PM May 14, 2021Observed: 7.27 ft at 11:00PM May 14, 2021Observed: 7.25 ft at 11:15PM May 14, 2021Observed: 7.24 ft at 11:30PM May 14, 2021Observed: 7.22 ft at 11:45PM May 14, 2021Observed: 7.2 ft at 12:00AM May 15, 2021Observed: 7.19 ft at 12:15AM May 15, 2021Observed: 7.17 ft at 12:30AM May 15, 2021Observed: 7.15 ft at 12:45AM May 15, 2021Observed: 7.14 ft at 1:00AM May 15, 2021Observed: 7.12 ft at 1:15AM May 15, 2021Observed: 7.1 ft at 1:30AM May 15, 2021Observed: 7.09 ft at 1:45AM May 15, 2021Observed: 7.07 ft at 2:00AM May 15, 2021Observed: 7.05 ft at 2:15AM May 15, 2021Observed: 7.04 ft at 2:30AM May 15, 2021Observed: 7.02 ft at 2:45AM May 15, 2021Observed: 7.01 ft at 3:00AM May 15, 2021Observed: 6.99 ft at 3:15AM May 15, 2021Observed: 6.97 ft at 3:30AM May 15, 2021Observed: 6.96 ft at 3:45AM May 15, 2021Observed: 6.94 ft at 4:00AM May 15, 2021Observed: 6.92 ft at 4:15AM May 15, 2021Observed: 6.91 ft at 4:30AM May 15, 2021Observed: 6.89 ft at 4:45AM May 15, 2021Observed: 6.88 ft at 5:00AM May 15, 2021Observed: 6.86 ft at 5:15AM May 15, 2021Observed: 6.84 ft at 5:30AM May 15, 2021Observed: 6.83 ft at 5:45AM May 15, 2021Observed: 6.82 ft at 6:00AM May 15, 2021Observed: 6.8 ft at 6:15AM May 15, 2021Observed: 6.78 ft at 6:30AM May 15, 2021Observed: 6.77 ft at 6:45AM May 15, 2021Observed: 6.76 ft at 7:00AM May 15, 2021Observed: 6.74 ft at 7:15AM May 15, 2021Observed: 6.73 ft at 7:30AM May 15, 2021Observed: 6.72 ft at 7:45AM May 15, 2021Observed: 6.7 ft at 8:00AM May 15, 2021Observed: 6.69 ft at 8:15AM May 15, 2021Observed: 6.68 ft at 8:30AM May 15, 2021Observed: 6.67 ft at 8:45AM May 15, 2021Observed: 6.66 ft at 9:00AM May 15, 2021Observed: 6.64 ft at 9:15AM May 15, 2021Observed: 6.63 ft at 9:30AM May 15, 2021Observed: 6.62 ft at 9:45AM May 15, 2021Observed: 6.61 ft at 10:00AM May 15, 2021Observed: 6.6 ft at 10:15AM May 15, 2021Observed: 6.59 ft at 10:30AM May 15, 2021Observed: 6.58 ft at 10:45AM May 15, 2021Observed: 6.56 ft at 11:00AM May 15, 2021Observed: 6.57 ft at 11:15AM May 15, 2021Observed: 6.55 ft at 11:30AM May 15, 2021Observed: 6.54 ft at 11:45AM May 15, 2021Observed: 6.53 ft at 12:00PM May 15, 2021Observed: 6.53 ft at 12:15PM May 15, 2021Observed: 6.51 ft at 12:30PM May 15, 2021Observed: 6.5 ft at 12:45PM May 15, 2021Observed: 6.5 ft at 1:00PM May 15, 2021Observed: 6.49 ft at 1:15PM May 15, 2021Observed: 6.48 ft at 1:30PM May 15, 2021Observed: 6.48 ft at 1:45PM May 15, 2021Observed: 6.47 ft at 2:00PM May 15, 2021Observed: 6.46 ft at 2:15PM May 15, 2021Observed: 6.46 ft at 2:30PM May 15, 2021Observed: 6.45 ft at 2:45PM May 15, 2021Observed: 6.46 ft at 3:00PM May 15, 2021Observed: 6.44 ft at 3:15PM May 15, 2021Observed: 6.43 ft at 3:30PM May 15, 2021Observed: 6.42 ft at 3:45PM May 15, 2021Observed: 6.41 ft at 4:00PM May 15, 2021Observed: 6.41 ft at 4:15PM May 15, 2021Observed: 6.4 ft at 4:30PM May 15, 2021Observed: 6.4 ft at 4:45PM May 15, 2021Observed: 6.39 ft at 5:00PM May 15, 2021Observed: 6.39 ft at 5:15PM May 15, 2021Observed: 6.38 ft at 5:30PM May 15, 2021Observed: 6.38 ft at 5:45PM May 15, 2021Observed: 6.36 ft at 6:00PM May 15, 2021Observed: 6.36 ft at 6:15PM May 15, 2021Observed: 6.36 ft at 6:30PM May 15, 2021Observed: 6.35 ft at 6:45PM May 15, 2021Observed: 6.35 ft at 7:00PM May 15, 2021Observed: 6.34 ft at 7:15PM May 15, 2021Observed: 6.33 ft at 7:30PM May 15, 2021Observed: 6.33 ft at 7:45PM May 15, 2021Observed: 6.33 ft at 8:00PM May 15, 2021Observed: 6.32 ft at 8:15PM May 15, 2021Observed: 6.32 ft at 8:30PM May 15, 2021Observed: 6.31 ft at 8:45PM May 15, 2021Observed: 6.31 ft at 9:00PM May 15, 2021Observed: 6.3 ft at 9:15PM May 15, 2021Observed: 6.29 ft at 9:30PM May 15, 2021Observed: 6.29 ft at 9:45PM May 15, 2021Observed: 6.29 ft at 10:00PM May 15, 2021Observed: 6.28 ft at 10:15PM May 15, 2021Observed: 6.27 ft at 10:30PM May 15, 2021Observed: 6.27 ft at 10:45PM May 15, 2021Observed: 6.26 ft at 11:00PM May 15, 2021Observed: 6.26 ft at 11:15PM May 15, 2021Observed: 6.26 ft at 11:30PM May 15, 2021Observed: 6.25 ft at 11:45PM May 15, 2021Observed: 6.24 ft at 12:00AM May 16, 2021Observed: 6.23 ft at 12:15AM May 16, 2021Observed: 6.23 ft at 12:30AM May 16, 2021Observed: 6.22 ft at 12:45AM May 16, 2021Observed: 6.21 ft at 1:00AM May 16, 2021Observed: 6.21 ft at 1:15AM May 16, 2021Observed: 6.2 ft at 1:30AM May 16, 2021Observed: 6.19 ft at 1:45AM May 16, 2021Observed: 6.19 ft at 2:00AM May 16, 2021Observed: 6.18 ft at 2:15AM May 16, 2021Observed: 6.17 ft at 2:30AM May 16, 2021Observed: 6.17 ft at 2:45AM May 16, 2021Observed: 6.16 ft at 3:00AM May 16, 2021Observed: 6.15 ft at 3:15AM May 16, 2021Observed: 6.14 ft at 3:30AM May 16, 2021Observed: 6.14 ft at 3:45AM May 16, 2021Observed: 6.13 ft at 4:00AM May 16, 2021Observed: 6.12 ft at 4:15AM May 16, 2021Observed: 6.11 ft at 4:30AM May 16, 2021Observed: 6.1 ft at 4:45AM May 16, 2021Observed: 6.09 ft at 5:00AM May 16, 2021Observed: 6.09 ft at 5:15AM May 16, 2021Observed: 6.07 ft at 5:30AM May 16, 2021Observed: 6.07 ft at 5:45AM May 16, 2021Observed: 6.06 ft at 6:00AM May 16, 2021Observed: 6.06 ft at 6:15AM May 16, 2021Observed: 6.05 ft at 6:30AM May 16, 2021Observed: 6.04 ft at 6:45AM May 16, 2021Observed: 6.03 ft at 7:00AM May 16, 2021Observed: 6.02 ft at 7:15AM May 16, 2021Observed: 6.01 ft at 7:30AM May 16, 2021Observed: 6.01 ft at 7:45AM May 16, 2021Observed: 5.99 ft at 8:00AM May 16, 2021Observed: 5.99 ft at 8:15AM May 16, 2021Observed: 5.98 ft at 8:30AM May 16, 2021Observed: 5.97 ft at 8:45AM May 16, 2021Observed: 5.97 ft at 9:00AM May 16, 2021Observed: 5.96 ft at 9:15AM May 16, 2021Observed: 5.95 ft at 9:30AM May 16, 2021Observed: 5.94 ft at 9:45AM May 16, 2021Observed: 5.94 ft at 10:00AM May 16, 2021Observed: 5.93 ft at 10:15AM May 16, 2021Observed: 5.93 ft at 10:30AM May 16, 2021Observed: 5.92 ft at 10:45AM May 16, 2021Observed: 5.91 ft at 11:00AM May 16, 2021Observed: 5.91 ft at 11:15AM May 16, 2021Observed: 5.9 ft at 11:30AM May 16, 2021Observed: 5.9 ft at 11:45AM May 16, 2021Observed: 5.9 ft at 12:00PM May 16, 2021Observed: 5.88 ft at 12:15PM May 16, 2021Observed: 5.88 ft at 12:30PM May 16, 2021Observed: 5.88 ft at 12:45PM May 16, 2021Observed: 5.87 ft at 1:00PM May 16, 2021Observed: 5.87 ft at 1:15PM May 16, 2021Observed: 5.86 ft at 1:30PM May 16, 2021Observed: 5.86 ft at 1:45PM May 16, 2021Observed: 5.86 ft at 2:00PM May 16, 2021Observed: 5.85 ft at 2:15PM May 16, 2021Observed: 5.85 ft at 2:30PM May 16, 2021Observed: 5.85 ft at 2:45PM May 16, 2021Observed: 5.84 ft at 3:00PM May 16, 2021Observed: 5.84 ft at 3:15PM May 16, 2021Observed: 5.84 ft at 3:30PM May 16, 2021Observed: 5.83 ft at 3:45PM May 16, 2021Observed: 5.83 ft at 4:00PM May 16, 2021Observed: 5.83 ft at 4:15PM May 16, 2021USGS--Water Resources of the United StatesAYIT2(plotting HGIRG) Graph Created (5:36PM May 16, 2021)ObservedLatest observed value: 5.83 ft at 4:15 PM CDT 16-May-2021. Flood Stage is 12 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.

Reliability of the Forecast: Based on current and forecast river, weather and reservoir conditions

NOTE: Forecasts for the Ayish Bayou near San Augustine are issued as needed during times of high water, but are not routinely available.

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Downstream Gauge Downstream Locations
Flood Categories (in feet)
Major Flood Stage: 17
Moderate Flood Stage: 16
Flood Stage: 12
Action Stage: 11.5
Low Stage (in feet): 0

Historic Crests
(1) 20.91 ft on 03/30/2008
(2) 18.02 ft on 09/14/1978
(3) 17.50 ft on 09/21/1958
(4) 17.40 ft on 08/30/2017
(5) 16.82 ft on 04/09/1968
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 15.78 ft on 12/08/2018
(2) 12.49 ft on 04/07/2018
(3) 14.56 ft on 03/29/2018
(4) 13.65 ft on 02/22/2018
(5) 17.40 ft on 08/30/2017
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
Currently none available.
Zoom Level:16
KML Image
Gauge LocationGauge Map Marker
 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
17 Secondary roads near the bayou will flood and be barricaded. Moderate to severe lowland flooding will continue for at least a couple of days.
14.5 Minor lowland flooding of boat ramps.
14 Lowland flooding will slowly decrease during the next few days.
12 Lowland flooding of the heavily wooded floodplain will continue for the next several days.
About This Location Collapse

Latitude: 31.396111° N, Longitude: 94.150833° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame		 Gauge Height Flood Stage Uses
NWS stage 0 ft 12 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 29 190.22 ft 202.22 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:
Additional Information Collapse
During periods of possible very heavy rainfall, river forecasts may take into account precipitation amounts expected 30, 36, or even 48 hours into the future from the forecast issuance time.
Resources Collapse
Hydrologic Resources Additional Resources
Collaborative Agencies Collapse
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
Shreveport Weather Forecast Office
5655 Hollywood Avenue
Shreveport, LA 71109
(318) 631-3669
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