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Hydrograph River at a Glance Download
Rio Grande at Alamosa Stage (ft)Flow (cfs)Highest Observation: 1.32 ft at 5:30AM Aug 06, 2020Highest Observation: 1.32 ft at 5:45AM Aug 06, 2020Highest Observation: 1.32 ft at 6:00AM Aug 06, 2020Highest Observation: 1.32 ft at 6:15AM Aug 06, 2020Highest Observation: 1.32 ft at 6:30AM Aug 06, 2020Highest Observation: 1.32 ft at 6:45AM Aug 06, 2020Observed: 1.31 ft at 7:00AM Aug 06, 2020Observed: 1.31 ft at 7:02AM Aug 06, 2020Observed: 1.31 ft at 7:15AM Aug 06, 2020Observed: 1.31 ft at 7:17AM Aug 06, 2020Observed: 1.31 ft at 7:30AM Aug 06, 2020Observed: 1.31 ft at 7:32AM Aug 06, 2020Observed: 1.31 ft at 7:45AM Aug 06, 2020Observed: 1.31 ft at 8:00AM Aug 06, 2020Observed: 1.31 ft at 8:15AM Aug 06, 2020Observed: 1.31 ft at 8:30AM Aug 06, 2020Observed: 1.31 ft at 8:45AM Aug 06, 2020Observed: 1.31 ft at 9:00AM Aug 06, 2020Observed: 1.31 ft at 9:15AM Aug 06, 2020Observed: 1.31 ft at 9:30AM Aug 06, 2020Highest Observation: 1.32 ft at 9:45AM Aug 06, 2020Highest Observation: 1.32 ft at 10:00AM Aug 06, 2020Highest Observation: 1.32 ft at 10:15AM Aug 06, 2020Observed: 1.31 ft at 10:30AM Aug 06, 2020Observed: 1.31 ft at 10:45AM Aug 06, 2020Observed: 1.31 ft at 11:00AM Aug 06, 2020Observed: 1.31 ft at 11:15AM Aug 06, 2020Observed: 1.31 ft at 11:30AM Aug 06, 2020Observed: 1.31 ft at 11:45AM Aug 06, 2020Observed: 1.3 ft at 12:00PM Aug 06, 2020Observed: 1.3 ft at 12:15PM Aug 06, 2020Observed: 1.3 ft at 12:30PM Aug 06, 2020Observed: 1.3 ft at 12:45PM Aug 06, 2020Observed: 1.3 ft at 1:00PM Aug 06, 2020Observed: 1.29 ft at 1:15PM Aug 06, 2020Observed: 1.29 ft at 1:30PM Aug 06, 2020Observed: 1.28 ft at 1:45PM Aug 06, 2020Observed: 1.28 ft at 2:00PM Aug 06, 2020Observed: 1.28 ft at 2:15PM Aug 06, 2020Observed: 1.28 ft at 2:30PM Aug 06, 2020Observed: 1.28 ft at 2:45PM Aug 06, 2020Observed: 1.27 ft at 3:00PM Aug 06, 2020Observed: 1.27 ft at 3:15PM Aug 06, 2020Observed: 1.28 ft at 3:30PM Aug 06, 2020Observed: 1.27 ft at 3:45PM Aug 06, 2020Observed: 1.27 ft at 4:00PM Aug 06, 2020Observed: 1.27 ft at 4:15PM Aug 06, 2020Observed: 1.27 ft at 4:30PM Aug 06, 2020Observed: 1.27 ft at 4:45PM Aug 06, 2020Observed: 1.27 ft at 5:00PM Aug 06, 2020Observed: 1.27 ft at 5:15PM Aug 06, 2020Observed: 1.27 ft at 5:30PM Aug 06, 2020Observed: 1.27 ft at 5:45PM Aug 06, 2020Observed: 1.26 ft at 6:00PM Aug 06, 2020Observed: 1.26 ft at 6:15PM Aug 06, 2020Observed: 1.26 ft at 6:30PM Aug 06, 2020Observed: 1.26 ft at 6:45PM Aug 06, 2020Observed: 1.26 ft at 7:00PM Aug 06, 2020Observed: 1.26 ft at 7:01PM Aug 06, 2020Observed: 1.25 ft at 7:15PM Aug 06, 2020Observed: 1.25 ft at 7:16PM Aug 06, 2020Observed: 1.25 ft at 7:30PM Aug 06, 2020Observed: 1.25 ft at 7:31PM Aug 06, 2020Observed: 1.25 ft at 7:45PM Aug 06, 2020Observed: 1.25 ft at 8:00PM Aug 06, 2020Observed: 1.25 ft at 8:15PM Aug 06, 2020Observed: 1.25 ft at 8:30PM Aug 06, 2020Observed: 1.25 ft at 8:45PM Aug 06, 2020Observed: 1.25 ft at 9:00PM Aug 06, 2020Observed: 1.24 ft at 9:15PM Aug 06, 2020Observed: 1.24 ft at 9:30PM Aug 06, 2020Observed: 1.24 ft at 9:45PM Aug 06, 2020Observed: 1.24 ft at 10:00PM Aug 06, 2020Observed: 1.24 ft at 10:15PM Aug 06, 2020Observed: 1.24 ft at 10:30PM Aug 06, 2020Observed: 1.24 ft at 10:45PM Aug 06, 2020Observed: 1.24 ft at 11:00PM Aug 06, 2020Observed: 1.24 ft at 11:15PM Aug 06, 2020Observed: 1.24 ft at 11:30PM Aug 06, 2020Observed: 1.24 ft at 11:45PM Aug 06, 2020Observed: 1.24 ft at 12:00AM Aug 07, 2020Observed: 1.24 ft at 12:15AM Aug 07, 2020Observed: 1.24 ft at 12:30AM Aug 07, 2020Observed: 1.24 ft at 12:45AM Aug 07, 2020Observed: 1.24 ft at 1:00AM Aug 07, 2020Observed: 1.24 ft at 1:15AM Aug 07, 2020Observed: 1.25 ft at 1:30AM Aug 07, 2020Observed: 1.24 ft at 1:45AM Aug 07, 2020Observed: 1.25 ft at 2:00AM Aug 07, 2020Observed: 1.25 ft at 2:15AM Aug 07, 2020Observed: 1.25 ft at 2:30AM Aug 07, 2020Observed: 1.25 ft at 2:45AM Aug 07, 2020Observed: 1.25 ft at 3:00AM Aug 07, 2020Observed: 1.24 ft at 3:15AM Aug 07, 2020Observed: 1.24 ft at 3:30AM Aug 07, 2020Observed: 1.25 ft at 3:45AM Aug 07, 2020Observed: 1.25 ft at 4:00AM Aug 07, 2020Observed: 1.24 ft at 4:15AM Aug 07, 2020Observed: 1.25 ft at 4:30AM Aug 07, 2020Observed: 1.24 ft at 4:45AM Aug 07, 2020Observed: 1.24 ft at 5:00AM Aug 07, 2020Observed: 1.24 ft at 5:15AM Aug 07, 2020Observed: 1.24 ft at 5:30AM Aug 07, 2020Observed: 1.24 ft at 5:45AM Aug 07, 2020Observed: 1.24 ft at 6:00AM Aug 07, 2020Observed: 1.24 ft at 6:15AM Aug 07, 2020Observed: 1.24 ft at 6:30AM Aug 07, 2020Observed: 1.24 ft at 6:45AM Aug 07, 2020Observed: 1.24 ft at 7:00AM Aug 07, 2020Observed: 1.24 ft at 7:01AM Aug 07, 2020Observed: 1.24 ft at 7:15AM Aug 07, 2020Observed: 1.24 ft at 7:16AM Aug 07, 2020Observed: 1.24 ft at 7:30AM Aug 07, 2020Observed: 1.24 ft at 7:31AM Aug 07, 2020Observed: 1.24 ft at 7:45AM Aug 07, 2020Observed: 1.24 ft at 8:00AM Aug 07, 2020Observed: 1.24 ft at 8:15AM Aug 07, 2020Observed: 1.24 ft at 8:30AM Aug 07, 2020Observed: 1.24 ft at 8:45AM Aug 07, 2020Observed: 1.24 ft at 9:00AM Aug 07, 2020Observed: 1.24 ft at 9:15AM Aug 07, 2020Observed: 1.23 ft at 9:30AM Aug 07, 2020Observed: 1.23 ft at 9:45AM Aug 07, 2020Observed: 1.23 ft at 10:00AM Aug 07, 2020Observed: 1.23 ft at 10:15AM Aug 07, 2020Observed: 1.23 ft at 10:30AM Aug 07, 2020Observed: 1.23 ft at 10:45AM Aug 07, 2020Observed: 1.23 ft at 11:00AM Aug 07, 2020Observed: 1.22 ft at 11:15AM Aug 07, 2020Observed: 1.22 ft at 11:30AM Aug 07, 2020Observed: 1.22 ft at 11:45AM Aug 07, 2020Observed: 1.22 ft at 12:00PM Aug 07, 2020Observed: 1.21 ft at 12:15PM Aug 07, 2020Observed: 1.21 ft at 12:30PM Aug 07, 2020Observed: 1.21 ft at 12:45PM Aug 07, 2020Observed: 1.21 ft at 1:00PM Aug 07, 2020Observed: 1.2 ft at 1:15PM Aug 07, 2020Observed: 1.2 ft at 1:30PM Aug 07, 2020Observed: 1.19 ft at 1:45PM Aug 07, 2020Observed: 1.19 ft at 2:00PM Aug 07, 2020Observed: 1.19 ft at 2:15PM Aug 07, 2020Observed: 1.18 ft at 2:30PM Aug 07, 2020Observed: 1.18 ft at 2:45PM Aug 07, 2020Observed: 1.18 ft at 3:00PM Aug 07, 2020Observed: 1.17 ft at 3:15PM Aug 07, 2020Observed: 1.17 ft at 3:30PM Aug 07, 2020Observed: 1.17 ft at 3:45PM Aug 07, 2020Observed: 1.17 ft at 4:00PM Aug 07, 2020Observed: 1.17 ft at 4:15PM Aug 07, 2020Observed: 1.16 ft at 4:30PM Aug 07, 2020Observed: 1.16 ft at 4:45PM Aug 07, 2020Observed: 1.16 ft at 5:00PM Aug 07, 2020Observed: 1.16 ft at 5:15PM Aug 07, 2020Observed: 1.16 ft at 5:30PM Aug 07, 2020Observed: 1.16 ft at 5:45PM Aug 07, 2020Observed: 1.15 ft at 6:00PM Aug 07, 2020Observed: 1.15 ft at 6:15PM Aug 07, 2020Observed: 1.15 ft at 6:30PM Aug 07, 2020Observed: 1.15 ft at 6:45PM Aug 07, 2020Observed: 1.14 ft at 7:00PM Aug 07, 2020Observed: 1.14 ft at 7:15PM Aug 07, 2020Observed: 1.14 ft at 7:16PM Aug 07, 2020Observed: 1.14 ft at 7:30PM Aug 07, 2020Observed: 1.14 ft at 7:31PM Aug 07, 2020Observed: 1.14 ft at 7:45PM Aug 07, 2020Observed: 1.14 ft at 7:46PM Aug 07, 2020Observed: 1.14 ft at 8:00PM Aug 07, 2020Observed: 1.14 ft at 8:15PM Aug 07, 2020Observed: 1.13 ft at 8:30PM Aug 07, 2020Observed: 1.13 ft at 8:45PM Aug 07, 2020Observed: 1.13 ft at 9:00PM Aug 07, 2020Observed: 1.13 ft at 9:15PM Aug 07, 2020Observed: 1.13 ft at 9:30PM Aug 07, 2020Observed: 1.13 ft at 9:45PM Aug 07, 2020Observed: 1.13 ft at 10:00PM Aug 07, 2020Observed: 1.13 ft at 10:15PM Aug 07, 2020Observed: 1.13 ft at 10:30PM Aug 07, 2020Observed: 1.13 ft at 10:45PM Aug 07, 2020Observed: 1.13 ft at 11:00PM Aug 07, 2020Observed: 1.13 ft at 11:15PM Aug 07, 2020Observed: 1.13 ft at 11:30PM Aug 07, 2020Observed: 1.13 ft at 11:45PM Aug 07, 2020Observed: 1.13 ft at 12:00AM Aug 08, 2020Observed: 1.13 ft at 12:15AM Aug 08, 2020Observed: 1.13 ft at 12:30AM Aug 08, 2020Observed: 1.13 ft at 12:45AM Aug 08, 2020Observed: 1.13 ft at 1:00AM Aug 08, 2020Observed: 1.13 ft at 1:15AM Aug 08, 2020Observed: 1.13 ft at 1:30AM Aug 08, 2020Observed: 1.13 ft at 1:45AM Aug 08, 2020Observed: 1.13 ft at 2:00AM Aug 08, 2020Observed: 1.13 ft at 2:15AM Aug 08, 2020Observed: 1.13 ft at 2:30AM Aug 08, 2020Observed: 1.13 ft at 2:45AM Aug 08, 2020Observed: 1.13 ft at 3:00AM Aug 08, 2020Observed: 1.13 ft at 3:15AM Aug 08, 2020Observed: 1.13 ft at 3:30AM Aug 08, 2020Observed: 1.14 ft at 3:45AM Aug 08, 2020Observed: 1.14 ft at 4:00AM Aug 08, 2020Observed: 1.14 ft at 4:15AM Aug 08, 2020Observed: 1.14 ft at 4:30AM Aug 08, 2020Observed: 1.14 ft at 4:45AM Aug 08, 2020Observed: 1.14 ft at 5:00AM Aug 08, 2020Observed: 1.14 ft at 5:15AM Aug 08, 2020Observed: 1.14 ft at 5:30AM Aug 08, 2020Observed: 1.15 ft at 5:45AM Aug 08, 2020Observed: 1.15 ft at 6:00AM Aug 08, 2020Observed: 1.15 ft at 6:15AM Aug 08, 2020Observed: 1.15 ft at 6:30AM Aug 08, 2020Observed: 1.15 ft at 6:45AM Aug 08, 2020Observed: 1.15 ft at 7:00AM Aug 08, 2020Observed: 1.15 ft at 7:15AM Aug 08, 2020Observed: 1.15 ft at 7:16AM Aug 08, 2020Observed: 1.16 ft at 7:30AM Aug 08, 2020Observed: 1.16 ft at 7:31AM Aug 08, 2020Observed: 1.16 ft at 7:45AM Aug 08, 2020Observed: 1.16 ft at 7:46AM Aug 08, 2020Observed: 1.16 ft at 8:00AM Aug 08, 2020Observed: 1.16 ft at 8:15AM Aug 08, 2020Observed: 1.16 ft at 8:30AM Aug 08, 2020Observed: 1.16 ft at 8:45AM Aug 08, 2020Observed: 1.16 ft at 9:00AM Aug 08, 2020Observed: 1.16 ft at 9:15AM Aug 08, 2020Observed: 1.16 ft at 9:30AM Aug 08, 2020Observed: 1.16 ft at 9:45AM Aug 08, 2020Observed: 1.16 ft at 10:00AM Aug 08, 2020Observed: 1.16 ft at 10:15AM Aug 08, 2020Observed: 1.16 ft at 10:30AM Aug 08, 2020Observed: 1.16 ft at 10:45AM Aug 08, 2020Observed: 1.16 ft at 11:00AM Aug 08, 2020Observed: 1.16 ft at 11:15AM Aug 08, 2020Observed: 1.16 ft at 11:30AM Aug 08, 2020Observed: 1.16 ft at 11:45AM Aug 08, 2020Observed: 1.15 ft at 12:00PM Aug 08, 2020Observed: 1.15 ft at 12:15PM Aug 08, 2020Observed: 1.15 ft at 12:30PM Aug 08, 2020Observed: 1.15 ft at 12:45PM Aug 08, 2020Observed: 1.15 ft at 1:00PM Aug 08, 2020Observed: 1.14 ft at 1:15PM Aug 08, 2020Observed: 1.14 ft at 1:30PM Aug 08, 2020Observed: 1.14 ft at 1:45PM Aug 08, 2020Observed: 1.13 ft at 2:00PM Aug 08, 2020Observed: 1.13 ft at 2:15PM Aug 08, 2020Observed: 1.13 ft at 2:30PM Aug 08, 2020Observed: 1.13 ft at 2:45PM Aug 08, 2020Observed: 1.12 ft at 3:00PM Aug 08, 2020Observed: 1.12 ft at 3:15PM Aug 08, 2020Observed: 1.12 ft at 3:30PM Aug 08, 2020Observed: 1.11 ft at 3:45PM Aug 08, 2020Observed: 1.11 ft at 4:00PM Aug 08, 2020Observed: 1.11 ft at 4:15PM Aug 08, 2020Observed: 1.11 ft at 4:30PM Aug 08, 2020Observed: 1.11 ft at 4:45PM Aug 08, 2020Observed: 1.11 ft at 5:00PM Aug 08, 2020Observed: 1.11 ft at 5:15PM Aug 08, 2020Observed: 1.1 ft at 5:30PM Aug 08, 2020Observed: 1.1 ft at 5:45PM Aug 08, 2020Observed: 1.1 ft at 6:00PM Aug 08, 2020Observed: 1.09 ft at 6:15PM Aug 08, 2020Observed: 1.09 ft at 6:30PM Aug 08, 2020Observed: 1.09 ft at 6:45PM Aug 08, 2020Observed: 1.09 ft at 7:00PM Aug 08, 2020Observed: 1.09 ft at 7:15PM Aug 08, 2020Observed: 1.09 ft at 7:17PM Aug 08, 2020Observed: 1.09 ft at 7:30PM Aug 08, 2020Observed: 1.09 ft at 7:32PM Aug 08, 2020Observed: 1.09 ft at 7:45PM Aug 08, 2020Observed: 1.09 ft at 7:47PM Aug 08, 2020Observed: 1.08 ft at 8:00PM Aug 08, 2020Observed: 1.08 ft at 8:15PM Aug 08, 2020Observed: 1.08 ft at 8:30PM Aug 08, 2020Observed: 1.08 ft at 8:45PM Aug 08, 2020Observed: 1.08 ft at 9:00PM Aug 08, 2020Observed: 1.08 ft at 9:15PM Aug 08, 2020Observed: 1.08 ft at 9:30PM Aug 08, 2020Observed: 1.08 ft at 9:45PM Aug 08, 2020Observed: 1.08 ft at 10:00PM Aug 08, 2020Observed: 1.08 ft at 10:15PM Aug 08, 2020Observed: 1.08 ft at 10:30PM Aug 08, 2020Observed: 1.07 ft at 10:45PM Aug 08, 2020Observed: 1.07 ft at 11:00PM Aug 08, 2020Observed: 1.07 ft at 11:15PM Aug 08, 2020Observed: 1.07 ft at 11:30PM Aug 08, 2020Observed: 1.07 ft at 11:45PM Aug 08, 2020Observed: 1.07 ft at 12:00AM Aug 09, 2020Observed: 1.07 ft at 12:15AM Aug 09, 2020Observed: 1.07 ft at 12:30AM Aug 09, 2020Observed: 1.07 ft at 12:45AM Aug 09, 2020Observed: 1.07 ft at 1:00AM Aug 09, 2020Observed: 1.07 ft at 1:15AM Aug 09, 2020Observed: 1.08 ft at 1:30AM Aug 09, 2020Observed: 1.07 ft at 1:45AM Aug 09, 2020Observed: 1.08 ft at 2:00AM Aug 09, 2020Observed: 1.08 ft at 2:15AM Aug 09, 2020Observed: 1.08 ft at 2:30AM Aug 09, 2020Observed: 1.08 ft at 2:45AM Aug 09, 2020Observed: 1.08 ft at 3:00AM Aug 09, 2020Observed: 1.08 ft at 3:15AM Aug 09, 2020Observed: 1.08 ft at 3:30AM Aug 09, 2020Observed: 1.08 ft at 3:45AM Aug 09, 2020Observed: 1.08 ft at 4:00AM Aug 09, 2020Observed: 1.08 ft at 4:15AM Aug 09, 2020Observed: 1.08 ft at 4:30AM Aug 09, 2020Colorado Division of Water ResourcesALAC2(plotting HGIRG) Graph Created (5:19AM Aug 9, 2020)ObservedLatest observed value: 1.08 ft at 4:30 AM MDT 9-Aug-2020. Flood Stage is 9 ft
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About this graph
Tabular Data (UTC)
Tabular Data (MDT)
XML Data
RSS Files
Datum: NGVD29
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 Rio Grande at Alamosa are issued as needed during times of high water, but are not routinely available.

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Upstream Gauge - near Del Norte Upstream Gauge Downstream Gauge Downstream Gauge - near Cerro
Flood Categories (in feet)
Major Flood Stage: 13
Moderate Flood Stage: 11
Flood Stage: 9
Action Stage: 7
Low Stage (in feet): -9999

Historic Crests
(1) 10.62 ft on 06/20/1949
(2) 9.97 ft on 05/23/1948
(3) 9.87 ft on 06/05/1948
(4) 9.32 ft on 05/18/1944
(5) 8.84 ft on 07/03/1995
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 5.54 ft on 09/29/2013
(2) 5.17 ft on 03/28/2012
(3) 5.13 ft on 05/09/2009
(4) 6.45 ft on 06/05/2008
(5) 7.19 ft on 05/25/2005
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
Currently none available.

For more information on your flood risk go to www.floodsmart.gov.

Zoom Level:14
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
15 Major flooding. Flood waters move across Stadium Drive and into homes near Adams State College
14.5 Major flooding. Flood waters move into homes along Lakewood and Riverwood Drives in northeast Alamosa
14 Major flooding. Flood waters inundate apartments along River Drive in northeast Alamosa
13.5 Major flooding. Water reaches base of Highway 160 Bridge and spills into homes and park near the bridge
13 Major flooding. Water reaches base of State Avenue Bridge.
11.5 Moderate flooding. Water overtops low spots in levee protecting Alamosa and begins to flow into Cattails Golf Course and nearby homes
11 Moderate flooding. Moderate agricultural flooding. Water begins to overtop low spots in levee protecting Alamosa.
9 Minor flooding. Minor agricultural flooding in low lying areas along the river
7 Action Stage. The river is bankfull along portions of the reach from 8 miles upstream to 1 mile downstream.
About This Location Collapse

Latitude: 37.480833° N, Longitude: 105.878056° W, Horizontal Datum: NAD27

River Stage
Reference Frame
Gauge Height Flood Stage Uses
NWS stage 0 ft 9 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 7532.66 ft 7541.66 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
River stage observations provided by the Colorado Division of Water Resources
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
Pueblo Weather Forecast Office
3 Eaton Way
Pueblo, CO 81001
(719) 948-9429
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Page last modified: 1-Mar-2019 12:33 AM
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