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Hydrograph River at a Glance Download Inundation
San Jacinto River near Sheldon Stage (ft)Flow (kcfs)Observed: -0.27 ft at 1:50PM Dec 04, 2020Observed: -0.3 ft at 2:05PM Dec 04, 2020Observed: -0.39 ft at 3:00PM Dec 04, 2020Observed: -0.51 ft at 3:35PM Dec 04, 2020Observed: -0.61 ft at 4:00PM Dec 04, 2020Observed: -0.67 ft at 6:05PM Dec 04, 2020Observed: -0.5 ft at 7:15PM Dec 04, 2020Observed: -0.39 ft at 7:35PM Dec 04, 2020Observed: -0.29 ft at 7:50PM Dec 04, 2020Observed: -0.16 ft at 8:10PM Dec 04, 2020Observed: -0.06 ft at 8:25PM Dec 04, 2020Observed: 0.07 ft at 8:45PM Dec 04, 2020Observed: 0.18 ft at 9:00PM Dec 04, 2020Observed: 0.3 ft at 9:20PM Dec 04, 2020Observed: 0.4 ft at 9:35PM Dec 04, 2020Observed: 0.52 ft at 9:55PM Dec 04, 2020Observed: 0.58 ft at 10:05PM Dec 04, 2020Observed: 0.64 ft at 10:15PM Dec 04, 2020Observed: 0.76 ft at 10:35PM Dec 04, 2020Observed: 0.89 ft at 10:55PM Dec 04, 2020Observed: 1.01 ft at 11:15PM Dec 04, 2020Observed: 1.13 ft at 11:40PM Dec 04, 2020Observed: 1.25 ft at 12:10AM Dec 05, 2020Observed: 1.36 ft at 12:45AM Dec 05, 2020Observed: 1.47 ft at 1:20AM Dec 05, 2020Highest Observation: 1.58 ft at 2:05AM Dec 05, 2020Observed: 1.48 ft at 6:00AM Dec 05, 2020Observed: 1.48 ft at 6:05AM Dec 05, 2020Observed: 1.34 ft at 7:40AM Dec 05, 2020Observed: 1.23 ft at 9:25AM Dec 05, 2020Observed: 1.25 ft at 10:05AM Dec 05, 2020Observed: 1.11 ft at 11:10AM Dec 05, 2020Observed: 1 ft at 1:20PM Dec 05, 2020Observed: 0.88 ft at 1:55PM Dec 05, 2020Observed: 0.83 ft at 2:05PM Dec 05, 2020Observed: 0.77 ft at 2:15PM Dec 05, 2020Observed: 0.66 ft at 2:40PM Dec 05, 2020Observed: 0.51 ft at 3:00PM Dec 05, 2020Observed: 0.4 ft at 3:40PM Dec 05, 2020Observed: 0.3 ft at 4:20PM Dec 05, 2020USGS--Water Resources of the United StatesSHLT2(plotting HGIRR) Graph Created (4:36PM Dec 5, 2020)ObservedLatest observed value: 0.3 ft at 4:20 PM CST 5-Dec-2020. Flood Stage is 10 ft
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Tabular Data (UTC)
Tabular Data (CST)
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Datum: NAVD88
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
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(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
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(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
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For more information on your flood risk go to

Zoom Level:16
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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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15 Major lowland flooding begins.
13 Moderate lowland flooding begins with widespread inundation of the flood plain.
10 Minor lowland flooding begins.
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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)
(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

Current/Historical Observations:

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NWS Information
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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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