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Hydrograph River at a Glance Download
Ralston Creek (CO) at Arvada Stage (ft)Flow (cfs)Highest Observation: 0.77 ft at 11:47PM Oct 20, 2020Observed: 0.76 ft at 11:45AM Oct 21, 2020Observed: 0.76 ft at 11:43PM Oct 21, 2020Observed: 0.76 ft at 11:41AM Oct 22, 2020Observed: 0.76 ft at 11:39PM Oct 22, 2020Observed: 0.73 ft at 11:37AM Oct 23, 2020Observed: 0.69 ft at 11:35PM Oct 23, 2020Observed: 0.67 ft at 11:33AM Oct 24, 2020Observed: 0.66 ft at 11:31PM Oct 24, 2020Observed: 0.65 ft at 11:29AM Oct 25, 2020MHFDCRPC2(plotting HGIRZ) Graph Created (6:30PM Oct 25, 2020)ObservedLatest observed value: 0.65 ft at 11:29 AM MDT 25-Oct-2020. Flood Stage is 4.5 ft
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Tabular Data (UTC)
Tabular Data (MDT)
XML Data
RSS Files
Datum: NGVD29
Metadata
NOTE: Stage data may not be available during winter months.

NOTE: Forecasts are not available for the Ralston Creek (CO) at Arvada. Only observed stages are available for this point.

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Downstream Gauge Downstream Gauge - at Arvada
Flood Categories (in feet)
Major Flood Stage: 5.5
Moderate Flood Stage: 5
Flood Stage: 4.5
Action Stage: 3.5
Low Stage (in feet): -9999

Historic Crests
Currently none available.

Recent Crests
Currently none available.

Low Water Records
Currently none available.

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

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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.
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If you notice any errors in the below information, please contact our Webmaster
8 HOUSES IN WESTWOODS NEIGHBORHOOD FLOODED
6.5 OUTBUILDING IN WESTWOODS NEIGHBORHOOD FLOODED
5.5 BRIDGES DOWNSTREAM ON RALSTON CREEK FLOODED
4.5 CANAL WALL OVERTOPPED.
3.5 OVERFLOW BANKS INTO MEADOWS.
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Latitude: 39.820000° N, Longitude: 105.173300° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame
Gauge Height Flood Stage Uses
NWS stage 0 ft 4.5 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 5590 5594.5 Older USGS topographic maps, NGVD29 benchmarks
MSL Not Available Not Available Older USGS topographic maps, MSL benchmarks
Other Not Available Not Available  
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Observations provided by the Mile High Flood District
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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
Denver/Boulder Weather Forecast Office
325 Broadway
Boulder, CO 80305-3328
(303) 494-4221
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Page last modified: 1-Mar-2019 12:33 AM
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