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Hydrograph River at a Glance Download
Santa Clara River near Gunlock Stage (ft)Flow (kcfs)USGS--Water Resources of the United StatesSCGU1(plotting HGIRG) Graph Created (9:51PM Feb 26, 2020)Flood Stage is 5.8 ft
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Datum: Not Available
Metadata
Reliability of the Forecast: Based on current and forecast river, weather and reservoir conditions

NOTE: Forecasts for the Santa Clara River near Gunlock are issued routinely year-round.

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Upstream Gauge - near St. George Upstream Gauge
Flood Categories (in feet)
Major Flood Stage: 6.5
Moderate Flood Stage: 6.2
Flood Stage: 5.8
Action Stage: 4.9
Low Stage (in feet): -9999

Historic Crests
(1) 14.20 ft on 08/01/2007
(2) 10.20 ft on 01/10/2005 (P)
(3) 7.47 ft on 09/03/1997
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 14.20 ft on 08/01/2007
(2) 10.20 ft on 01/10/2005 (P)
(3) 6.37 ft on 09/09/2004
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
(1) 1.26 ft on 04/27/1995
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Zoom Level:16
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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
6.5 At 6.5 ft. The santa clara river at gunlock will destroy temporary structures in and around the town of gunlock.
6.2 At 6.2 ft. The santa clara river at gunlock will damage temporary culverts and roads in and around the town of gunlock.
5.8 At 5.8 ft. The santa clara river at gunlock will flood areas of the towns of gunlock and ivins as well as downstream areas below gunlock reservoir. This includes campgrounds and roads that pass near the river.
About This Location Collapse

Latitude: 37.281922° N, Longitude: 113.767466° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame		 Gauge Height Flood Stage Uses
NWS stage 0 ft 5.8 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 3584 ft 3589.3 ft  

Current/Historical Observations:
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Hydrologic Resources Additional Resources
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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
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