National Weather Service Advanced Hydrologic Prediction Service

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Weather Forecast Office Tucson, AZ

Colorado Basin River Forecast Center

Hydrograph

River at a Glance

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About this graph

Tabular Data (UTC)

Tabular Data (MST)

Datum: Not Available

Metadata

Reliability of the Forecast: Forecast data shown here are guidance values only. Please refer to your local NWS office.

NOTE: Forecasts for the Santa Cruz River at Green Valley are issued routinely year-round.

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Upstream Gauge

Downstream Gauge

Flood Categories (in feet)

Major Flood Stage:	16
Moderate Flood Stage:	15
Flood Stage:	14
Action Stage:	12
Low Stage (in feet):	-9999

Historic Crests
Currently none available.

Recent Crests
Currently none available.

Low Water Records
Currently none available.

Zoom Level:16

	Gauge Location	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

If you notice any errors in the below information, please contact our Webmaster
18	The southern pacific railroad tracks may be overtopped. Major damage and rapid flooding is likely east of tracks in much of continental and eastern sections of sahuarita.
17	Major flooding occurs between continental and the tucson city limits with numerous homes and businesses flooded. The interstate 19 bridge is threatened near kilometer marker 92.
16	Bank protection is overtopped in Green Valley, flooding numerous homes and businesses. Much of Nogales Highway flooded from Continental Road and Pima Mine Road. Low lying areas in Sahuarita between Villita Road and Santa Rita Road flood.
15	Bridge bottoms reached at Continental Rd, Sahuarita Rd, and Pima Mine Rd. Erosion damage begins at Haven Golf Course on left bank. Sections of Nogales Highway between Sahuarita and Pima Mine Roads threatened. Homes on the right bank may flood due to backup from the Continental Road bridge.
14	Erosion likely outside soil cement bank protection. Pecan orchards further inundated.
12	Pecan orchards adjacent to the river begin to flood.

About This Location

Latitude: 31.871473° N, Longitude: 110.980091° W, Horizontal Datum: NAD83/WGS84

River Stage Reference Frame	Gauge Height	Flood Stage	Uses
NWS stage	0 ft	14 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	2819.82	Not Available	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:

U.S. Geological Survey (USGS) Data and Site Info for Green Valley

Resources

Hydrologic Resources

Additional Resources

Collaborative Agencies

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
Tucson Weather Forecast Office
520 North Park Ave, Suite 304
Tucson, AZ 85719
(520) 670-6526
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Page last modified: 2-Nov-2020 7:30 PM

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