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Hydrograph River at a Glance Download
South Umpqua River near Riddle Stage (ft)Flow (cfs)Forecast: 5.55 ft 10:00AM Feb 26, 2021Forecast: 5.52 ft 4:00PM Feb 26, 2021Forecast: 5.53 ft 10:00PM Feb 26, 2021Forecast: 5.55 ft 4:00AM Feb 27, 2021Forecast: 5.59 ft 10:00AM Feb 27, 2021Forecast: 5.67 ft 4:00PM Feb 27, 2021Forecast: 5.76 ft 10:00PM Feb 27, 2021Forecast: 5.78 ft 4:00AM Feb 28, 2021Forecast: 5.74 ft 10:00AM Feb 28, 2021Forecast: 5.64 ft 4:00PM Feb 28, 2021Forecast: 5.54 ft 10:00PM Feb 28, 2021Forecast: 5.48 ft 4:00AM Mar 01, 2021Forecast: 5.48 ft 10:00AM Mar 01, 2021Forecast: 5.53 ft 4:00PM Mar 01, 2021Forecast: 5.87 ft 10:00PM Mar 01, 2021Highest Forecast: 6.35 ft 4:00AM Mar 02, 2021Douglas County Natural ResourcesSURO3(plotting HGIRZ) Graph Created (8:30AM Feb 26, 2021)Forecast (issued 7:50AM Feb 26)Flood Stage is 19 ft
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About this graph
Tabular Data (UTC)
Tabular Data (PST)
XML Data
RSS Files
Datum: Not Available
Metadata
NOTE: Gauge readings unavailable - awaiting repair.

NOTE: Forecasts for the South Umpqua River near Riddle are issued routinely year-round.

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Upstream Gauge - near Tiller Upstream Gauge Downstream Gauge Downstream Gauge - near Winston
Flood Categories (in feet)
Major Flood Stage: 24
Moderate Flood Stage: 21
Flood Stage: 19
Action Stage: 18
Low Stage (in feet): 0

Historic Crests
(1) 20.32 ft on 12/30/2005
(2) 20.09 ft on 12/09/1996
(3) 19.81 ft on 01/01/1997
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 14.02 ft on 11/20/2012
(2) 20.32 ft on 12/30/2005
(3) 19.81 ft on 01/01/1997
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
Currently none available.
Zoom Level:16
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
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20.32 Record stage since installation of gage. Widespread flooding of low-lying agricultural land is occurring. Some structures along and near the river are flooded.
20 Widespread flooding of low-lying agricultural land and some structures is occurring along the South Umpqua River in the vicinity of Riddle.
19 The South Umpqua River near Riddle is at flood stage. Widespread flooding of low-lying agricultural land and structures along the river is occurring.
18 The South Umpqua River near Riddle is at bankfull stage. Some flooding of low land is taking place.
About This Location Collapse

Latitude: 42.951944° N, Longitude: 123.334722° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame		 Gauge Height Flood Stage Uses
NWS stage 0 ft 19 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 29 622.334 ft 641.334 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
This gauge is awaiting repair. Funding is not available and will not be for the foreseeable future.
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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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