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Hydrograph River at a Glance Download Inundation
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San Jacinto River near Sheldon Stage (ft)Flow (kcfs)Observed: 2.52 ft at 1:50PM Oct 15, 2021Observed: 2.4 ft at 2:40PM Oct 15, 2021Observed: 2.4 ft at 3:05PM Oct 15, 2021Observed: 2.27 ft at 4:40PM Oct 15, 2021Observed: 2.14 ft at 6:40PM Oct 15, 2021Observed: 2.07 ft at 7:05PM Oct 15, 2021Observed: 2.03 ft at 7:10PM Oct 15, 2021Observed: 1.93 ft at 7:30PM Oct 15, 2021Observed: 1.8 ft at 7:55PM Oct 15, 2021Observed: 1.68 ft at 8:15PM Oct 15, 2021Observed: 1.56 ft at 8:55PM Oct 15, 2021Observed: 1.45 ft at 10:05PM Oct 15, 2021Observed: 1.34 ft at 10:55PM Oct 15, 2021Observed: 1.29 ft at 11:05PM Oct 15, 2021Observed: 1.22 ft at 11:25PM Oct 15, 2021Observed: 1.11 ft at 11:50PM Oct 15, 2021Observed: 0.98 ft at 12:25AM Oct 16, 2021Observed: 0.86 ft at 12:50AM Oct 16, 2021Observed: 0.73 ft at 1:20AM Oct 16, 2021Observed: 0.6 ft at 1:55AM Oct 16, 2021Observed: 0.48 ft at 2:30AM Oct 16, 2021Observed: 0.49 ft at 3:05AM Oct 16, 2021Observed: 0.58 ft at 3:55AM Oct 16, 2021Observed: 0.7 ft at 4:20AM Oct 16, 2021Observed: 0.83 ft at 4:55AM Oct 16, 2021Observed: 0.94 ft at 5:30AM Oct 16, 2021Observed: 1.05 ft at 6:20AM Oct 16, 2021Observed: 1.15 ft at 7:05AM Oct 16, 2021Observed: 1.05 ft at 9:20AM Oct 16, 2021Observed: 0.93 ft at 10:10AM Oct 16, 2021Observed: 0.8 ft at 10:50AM Oct 16, 2021Observed: 0.77 ft at 11:05AM Oct 16, 2021Observed: 0.69 ft at 11:30AM Oct 16, 2021Observed: 0.79 ft at 3:05PM Oct 16, 2021Observed: 0.83 ft at 3:10PM Oct 16, 2021Observed: 0.95 ft at 4:00PM Oct 16, 2021Observed: 1.06 ft at 4:35PM Oct 16, 2021Observed: 1.21 ft at 5:05PM Oct 16, 2021Observed: 1.33 ft at 5:35PM Oct 16, 2021Observed: 1.47 ft at 6:10PM Oct 16, 2021Observed: 1.58 ft at 6:40PM Oct 16, 2021Observed: 1.67 ft at 7:05PM Oct 16, 2021Observed: 1.47 ft at 9:50PM Oct 16, 2021Observed: 1.36 ft at 10:20PM Oct 16, 2021Observed: 1.25 ft at 10:50PM Oct 16, 2021Observed: 1.18 ft at 11:05PM Oct 16, 2021Observed: 1.13 ft at 11:20PM Oct 16, 2021Observed: 1.02 ft at 11:50PM Oct 16, 2021Observed: 0.89 ft at 12:15AM Oct 17, 2021Observed: 0.78 ft at 12:55AM Oct 17, 2021Observed: 0.68 ft at 1:40AM Oct 17, 2021Observed: 0.64 ft at 3:05AM Oct 17, 2021Observed: 0.79 ft at 3:50AM Oct 17, 2021Observed: 0.9 ft at 4:25AM Oct 17, 2021Observed: 1.03 ft at 4:50AM Oct 17, 2021Observed: 1.17 ft at 5:10AM Oct 17, 2021Observed: 1.3 ft at 5:30AM Oct 17, 2021Observed: 1.41 ft at 5:45AM Oct 17, 2021Observed: 1.53 ft at 6:00AM Oct 17, 2021Observed: 1.67 ft at 6:20AM Oct 17, 2021Observed: 1.81 ft at 6:40AM Oct 17, 2021Observed: 1.93 ft at 7:00AM Oct 17, 2021Observed: 1.95 ft at 7:05AM Oct 17, 2021Observed: 2.05 ft at 7:25AM Oct 17, 2021Observed: 2.15 ft at 7:55AM Oct 17, 2021Observed: 2.05 ft at 10:55AM Oct 17, 2021Observed: 2.05 ft at 11:05AM Oct 17, 2021Observed: 2.06 ft at 3:05PM Oct 17, 2021Observed: 2.16 ft at 3:45PM Oct 17, 2021Observed: 2.27 ft at 4:25PM Oct 17, 2021Observed: 2.38 ft at 5:20PM Oct 17, 2021Observed: 2.48 ft at 6:10PM Oct 17, 2021Observed: 2.57 ft at 7:05PM Oct 17, 2021Highest Observation: 2.59 ft at 7:10PM Oct 17, 2021Observed: 2.48 ft at 9:50PM Oct 17, 2021Observed: 2.36 ft at 10:20PM Oct 17, 2021Observed: 2.25 ft at 10:45PM Oct 17, 2021Observed: 2.18 ft at 11:05PM Oct 17, 2021Observed: 2.14 ft at 11:15PM Oct 17, 2021Observed: 2.03 ft at 11:40PM Oct 17, 2021Observed: 1.93 ft at 12:05AM Oct 18, 2021Observed: 1.81 ft at 12:35AM Oct 18, 2021Observed: 1.69 ft at 1:00AM Oct 18, 2021Observed: 1.58 ft at 1:30AM Oct 18, 2021Observed: 1.48 ft at 2:05AM Oct 18, 2021Observed: 1.37 ft at 2:55AM Oct 18, 2021Observed: 1.36 ft at 3:05AM Oct 18, 2021Observed: 1.49 ft at 4:50AM Oct 18, 2021Observed: 1.6 ft at 5:20AM Oct 18, 2021Observed: 1.72 ft at 5:45AM Oct 18, 2021Observed: 1.84 ft at 6:10AM Oct 18, 2021Observed: 1.94 ft at 6:35AM Oct 18, 2021Observed: 2.05 ft at 7:00AM Oct 18, 2021Observed: 2.08 ft at 7:05AM Oct 18, 2021Observed: 2.16 ft at 7:25AM Oct 18, 2021Observed: 2.27 ft at 7:50AM Oct 18, 2021Observed: 2.38 ft at 8:20AM Oct 18, 2021Observed: 2.49 ft at 9:00AM Oct 18, 2021Observed: 2.35 ft at 10:30AM Oct 18, 2021Observed: 2.27 ft at 11:05AM Oct 18, 2021Observed: 2.24 ft at 11:15AM Oct 18, 2021Observed: 2.24 ft at 11:20AM Oct 18, 2021Observed: 2.11 ft at 11:45AM Oct 18, 2021Observed: 2.11 ft at 11:50AM Oct 18, 2021Observed: 1.98 ft at 12:35PM Oct 18, 2021Observed: 1.86 ft at 1:05PM Oct 18, 2021USGS--Water Resources of the United StatesSHLT2(plotting HGIRR) Graph Created (1:21PM Oct 18, 2021)ObservedLatest observed value: 1.86 ft at 1:05 PM CDT 18-Oct-2021. Flood Stage is 10 ft
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Tabular Data (UTC)
Tabular Data (CDT)
XML Data
RSS Files
Datum: NAVD88
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 San Jacinto River near Sheldon are issued as needed during times of high water, but are not routinely available.

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Upstream Gauge - at Lake Houston Upstream Gauge
Flood Categories (in feet)
Major Flood Stage: 15
Moderate Flood Stage: 13
Flood Stage: 10
Action Stage: 8
Low Stage (in feet): -9999

Historic Crests
(1) 28.72 ft on 08/29/2017
(2) 28.07 ft on 10/19/1994
(3) 21.10 ft on 06/15/1973
(4) 21.08 ft on 05/19/1989
(5) 20.85 ft on 11/15/1998
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 19.37 ft on 09/20/2019 (P)
(2) 10.45 ft on 05/08/2019
(3) 28.72 ft on 08/29/2017
(4) 19.33 ft on 05/30/2016
(5) 15.64 ft on 04/21/2016
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
(1) -2.52 ft on 10/28/1985
(2) -2.48 ft on 03/06/1989
(3) -2.23 ft on 12/24/1989
Show More Low Water Records

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
15 Major lowland flooding begins.
13 Moderate lowland flooding begins with widespread inundation of the flood plain.
10 Minor lowland flooding begins.
About This Location Collapse

Latitude: 29.876111° N, Longitude: 95.093611° 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 Not Available Not Available Older USGS topographic maps, NGVD29 benchmarks
MSL Not Available Not Available Older USGS topographic maps, MSL benchmarks
Other NULL NULL  

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
Houston/Galveston Weather Forecast Office
1353 FM 646, Suite 202
Dickinson, TX 77539
(281) 337-5074
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Page last modified: 2-Nov-2020 7:29 PM
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