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Weather Forecast Office Norman, OK Arkansas Red-Basin River Forecast Center
Hydrograph River at a Glance Download Weekly Chance of
Exceeding Levels
Chance of Exceeding Levels
During Entire Period
Chikaskia River near Blackwell Stage (ft)Flow (kcfs)Observed: 2.53 ft at 9:30PM May 16, 2013Observed: 2.52 ft at 10:00PM May 16, 2013Observed: 2.53 ft at 10:30PM May 16, 2013Observed: 2.53 ft at 11:00PM May 16, 2013Observed: 2.52 ft at 11:30PM May 16, 2013Observed: 2.53 ft at 12:00AM May 17, 2013Observed: 2.52 ft at 12:30AM May 17, 2013Observed: 2.52 ft at 1:00AM May 17, 2013Observed: 2.52 ft at 1:30AM May 17, 2013Observed: 2.52 ft at 2:00AM May 17, 2013Observed: 2.52 ft at 2:30AM May 17, 2013Observed: 2.51 ft at 3:00AM May 17, 2013Observed: 2.52 ft at 3:30AM May 17, 2013Observed: 2.51 ft at 4:00AM May 17, 2013Observed: 2.52 ft at 4:30AM May 17, 2013Observed: 2.51 ft at 5:00AM May 17, 2013Observed: 2.51 ft at 5:30AM May 17, 2013Observed: 2.51 ft at 6:00AM May 17, 2013Observed: 2.51 ft at 6:30AM May 17, 2013Observed: 2.51 ft at 7:00AM May 17, 2013Observed: 2.51 ft at 7:30AM May 17, 2013Observed: 2.51 ft at 8:00AM May 17, 2013Observed: 2.51 ft at 8:30AM May 17, 2013Observed: 2.51 ft at 9:00AM May 17, 2013Observed: 2.5 ft at 9:30AM May 17, 2013Observed: 2.51 ft at 10:00AM May 17, 2013Observed: 2.5 ft at 10:30AM May 17, 2013Observed: 2.51 ft at 11:00AM May 17, 2013Observed: 2.51 ft at 11:30AM May 17, 2013Observed: 2.5 ft at 12:00PM May 17, 2013Observed: 2.5 ft at 12:30PM May 17, 2013Observed: 2.5 ft at 1:00PM May 17, 2013Observed: 2.49 ft at 1:30PM May 17, 2013Observed: 2.49 ft at 2:00PM May 17, 2013Observed: 2.5 ft at 2:30PM May 17, 2013Observed: 2.49 ft at 3:00PM May 17, 2013Observed: 2.49 ft at 3:30PM May 17, 2013Observed: 2.49 ft at 4:00PM May 17, 2013Observed: 2.49 ft at 4:30PM May 17, 2013Observed: 2.49 ft at 5:00PM May 17, 2013Observed: 2.49 ft at 5:30PM May 17, 2013Observed: 2.49 ft at 6:00PM May 17, 2013Observed: 2.49 ft at 6:30PM May 17, 2013Observed: 2.48 ft at 7:00PM May 17, 2013Observed: 2.48 ft at 7:30PM May 17, 2013Observed: 2.48 ft at 8:00PM May 17, 2013Observed: 2.49 ft at 8:30PM May 17, 2013Observed: 2.49 ft at 9:00PM May 17, 2013Observed: 2.48 ft at 9:30PM May 17, 2013Observed: 2.49 ft at 10:00PM May 17, 2013Observed: 2.48 ft at 10:30PM May 17, 2013Observed: 2.48 ft at 11:00PM May 17, 2013Observed: 2.49 ft at 11:30PM May 17, 2013Observed: 2.48 ft at 12:00AM May 18, 2013Observed: 2.48 ft at 12:30AM May 18, 2013Observed: 2.48 ft at 1:00AM May 18, 2013Observed: 2.48 ft at 1:30AM May 18, 2013Observed: 2.48 ft at 2:00AM May 18, 2013Observed: 2.48 ft at 2:30AM May 18, 2013Observed: 2.48 ft at 3:00AM May 18, 2013Observed: 2.47 ft at 3:30AM May 18, 2013Observed: 2.48 ft at 4:00AM May 18, 2013Observed: 2.48 ft at 4:30AM May 18, 2013Observed: 2.48 ft at 5:00AM May 18, 2013Observed: 2.48 ft at 5:30AM May 18, 2013Observed: 2.48 ft at 6:00AM May 18, 2013Observed: 2.48 ft at 6:30AM May 18, 2013Observed: 2.48 ft at 7:00AM May 18, 2013Observed: 2.48 ft at 7:30AM May 18, 2013Observed: 2.47 ft at 8:00AM May 18, 2013Observed: 2.47 ft at 8:30AM May 18, 2013Observed: 2.47 ft at 9:00AM May 18, 2013Observed: 2.48 ft at 9:30AM May 18, 2013Observed: 2.47 ft at 10:00AM May 18, 2013Observed: 2.47 ft at 10:30AM May 18, 2013Observed: 2.48 ft at 11:00AM May 18, 2013Observed: 2.48 ft at 11:30AM May 18, 2013Observed: 2.47 ft at 12:00PM May 18, 2013Observed: 2.47 ft at 12:30PM May 18, 2013Observed: 2.48 ft at 1:00PM May 18, 2013Observed: 2.47 ft at 1:30PM May 18, 2013Observed: 2.46 ft at 2:00PM May 18, 2013Observed: 2.46 ft at 2:30PM May 18, 2013Observed: 2.47 ft at 3:00PM May 18, 2013Observed: 2.47 ft at 3:30PM May 18, 2013Observed: 2.46 ft at 4:00PM May 18, 2013Observed: 2.46 ft at 4:30PM May 18, 2013Observed: 2.46 ft at 5:00PM May 18, 2013Observed: 2.47 ft at 5:30PM May 18, 2013Observed: 2.47 ft at 6:00PM May 18, 2013Observed: 2.46 ft at 6:30PM May 18, 2013Observed: 2.45 ft at 7:00PM May 18, 2013Observed: 2.46 ft at 7:30PM May 18, 2013Observed: 2.45 ft at 8:00PM May 18, 2013Observed: 2.45 ft at 8:30PM May 18, 2013Observed: 2.45 ft at 9:00PM May 18, 2013Observed: 2.44 ft at 9:30PM May 18, 2013Observed: 2.44 ft at 10:00PM May 18, 2013Observed: 2.44 ft at 10:30PM May 18, 2013Observed: 2.42 ft at 11:00PM May 18, 2013Observed: 2.44 ft at 11:30PM May 18, 2013Observed: 2.44 ft at 12:00AM May 19, 2013Observed: 2.45 ft at 12:30AM May 19, 2013Observed: 2.44 ft at 1:00AM May 19, 2013Observed: 2.45 ft at 1:30AM May 19, 2013Observed: 2.44 ft at 2:00AM May 19, 2013Observed: 2.43 ft at 2:30AM May 19, 2013Observed: 2.45 ft at 3:00AM May 19, 2013Observed: 2.45 ft at 3:30AM May 19, 2013Observed: 2.45 ft at 4:00AM May 19, 2013Observed: 2.46 ft at 4:30AM May 19, 2013Observed: 2.47 ft at 5:00AM May 19, 2013Observed: 2.47 ft at 5:30AM May 19, 2013Observed: 2.47 ft at 6:00AM May 19, 2013Observed: 2.48 ft at 6:30AM May 19, 2013Observed: 2.48 ft at 7:00AM May 19, 2013Observed: 2.48 ft at 7:30AM May 19, 2013Observed: 2.49 ft at 8:00AM May 19, 2013Observed: 2.48 ft at 8:30AM May 19, 2013Observed: 2.48 ft at 9:00AM May 19, 2013Observed: 2.48 ft at 9:30AM May 19, 2013Observed: 2.47 ft at 10:00AM May 19, 2013Observed: 2.47 ft at 10:30AM May 19, 2013Observed: 2.47 ft at 11:00AM May 19, 2013Observed: 2.48 ft at 11:30AM May 19, 2013Observed: 2.47 ft at 12:00PM May 19, 2013Observed: 2.47 ft at 12:30PM May 19, 2013Observed: 2.46 ft at 1:00PM May 19, 2013Observed: 2.47 ft at 1:30PM May 19, 2013Observed: 2.47 ft at 2:00PM May 19, 2013Observed: 2.47 ft at 2:30PM May 19, 2013Observed: 2.47 ft at 3:00PM May 19, 2013Observed: 2.46 ft at 3:30PM May 19, 2013Observed: 2.47 ft at 4:00PM May 19, 2013Observed: 2.46 ft at 4:30PM May 19, 2013Observed: 2.44 ft at 5:00PM May 19, 2013Observed: 2.46 ft at 5:30PM May 19, 2013Observed: 2.47 ft at 6:00PM May 19, 2013Observed: 2.48 ft at 6:30PM May 19, 2013Observed: 2.47 ft at 7:00PM May 19, 2013Observed: 2.47 ft at 7:30PM May 19, 2013Observed: 2.51 ft at 8:00PM May 19, 2013Observed: 2.53 ft at 8:30PM May 19, 2013Observed: 2.58 ft at 9:00PM May 19, 2013Observed: 2.61 ft at 9:30PM May 19, 2013Observed: 2.63 ft at 10:00PM May 19, 2013Observed: 2.67 ft at 10:30PM May 19, 2013Observed: 2.71 ft at 11:00PM May 19, 2013Observed: 2.74 ft at 11:30PM May 19, 2013Observed: 2.78 ft at 12:00AM May 20, 2013Observed: 2.81 ft at 12:30AM May 20, 2013Observed: 2.82 ft at 1:00AM May 20, 2013Observed: 2.83 ft at 1:30AM May 20, 2013Observed: 2.85 ft at 2:00AM May 20, 2013Observed: 2.85 ft at 2:30AM May 20, 2013Observed: 2.84 ft at 3:00AM May 20, 2013Observed: 2.84 ft at 3:30AM May 20, 2013Observed: 2.83 ft at 4:00AM May 20, 2013Observed: 2.84 ft at 4:30AM May 20, 2013Observed: 2.84 ft at 5:00AM May 20, 2013Observed: 2.85 ft at 5:30AM May 20, 2013Observed: 2.86 ft at 6:00AM May 20, 2013Observed: 2.87 ft at 6:30AM May 20, 2013Observed: 2.89 ft at 7:00AM May 20, 2013Observed: 2.9 ft at 7:30AM May 20, 2013Observed: 2.89 ft at 8:00AM May 20, 2013Observed: 2.9 ft at 8:30AM May 20, 2013Observed: 2.9 ft at 9:00AM May 20, 2013Observed: 2.89 ft at 9:30AM May 20, 2013Observed: 2.88 ft at 10:00AM May 20, 2013Observed: 2.88 ft at 10:30AM May 20, 2013Observed: 2.88 ft at 11:00AM May 20, 2013Observed: 2.88 ft at 11:30AM May 20, 2013Observed: 2.9 ft at 12:00PM May 20, 2013Observed: 2.9 ft at 12:30PM May 20, 2013Observed: 2.9 ft at 1:00PM May 20, 2013Observed: 2.94 ft at 1:30PM May 20, 2013Observed: 2.97 ft at 2:00PM May 20, 2013Observed: 3.03 ft at 2:30PM May 20, 2013Observed: 3.12 ft at 3:00PM May 20, 2013Observed: 3.22 ft at 3:30PM May 20, 2013Observed: 3.31 ft at 4:00PM May 20, 2013Observed: 3.4 ft at 4:30PM May 20, 2013Observed: 3.48 ft at 5:00PM May 20, 2013Observed: 3.52 ft at 5:30PM May 20, 2013Observed: 3.54 ft at 6:00PM May 20, 2013Observed: 3.59 ft at 6:30PM May 20, 2013Observed: 3.61 ft at 7:00PM May 20, 2013Observed: 3.62 ft at 7:30PM May 20, 2013Observed: 3.62 ft at 8:00PM May 20, 2013Highest Observation: 3.63 ft at 8:30PM May 20, 2013Observed: 3.62 ft at 9:00PM May 20, 2013Observed: 3.61 ft at 9:30PM May 20, 2013Observed: 3.61 ft at 10:00PM May 20, 2013Observed: 3.6 ft at 10:30PM May 20, 2013Observed: 3.58 ft at 11:00PM May 20, 2013Observed: 3.57 ft at 11:30PM May 20, 2013Observed: 3.55 ft at 12:00AM May 21, 2013Observed: 3.53 ft at 12:30AM May 21, 2013Observed: 3.51 ft at 1:00AM May 21, 2013Observed: 3.5 ft at 1:30AM May 21, 2013Observed: 3.47 ft at 2:00AM May 21, 2013Observed: 3.47 ft at 2:30AM May 21, 2013Observed: 3.45 ft at 3:00AM May 21, 2013Observed: 3.43 ft at 3:30AM May 21, 2013Observed: 3.41 ft at 4:00AM May 21, 2013Observed: 3.4 ft at 4:30AM May 21, 2013Observed: 3.37 ft at 5:00AM May 21, 2013Observed: 3.36 ft at 5:30AM May 21, 2013Observed: 3.33 ft at 6:00AM May 21, 2013Observed: 3.31 ft at 6:30AM May 21, 2013Observed: 3.29 ft at 7:00AM May 21, 2013Observed: 3.27 ft at 7:30AM May 21, 2013Observed: 3.26 ft at 8:00AM May 21, 2013Observed: 3.23 ft at 8:30AM May 21, 2013Observed: 3.22 ft at 9:00AM May 21, 2013Observed: 3.21 ft at 9:30AM May 21, 2013Observed: 3.18 ft at 10:00AM May 21, 2013Observed: 3.17 ft at 10:30AM May 21, 2013Observed: 3.13 ft at 11:00AM May 21, 2013Observed: 3.13 ft at 11:30AM May 21, 2013Observed: 3.12 ft at 12:00PM May 21, 2013Observed: 3.1 ft at 12:30PM May 21, 2013Observed: 3.08 ft at 1:00PM May 21, 2013Observed: 3.06 ft at 1:30PM May 21, 2013Observed: 3.06 ft at 2:00PM May 21, 2013Observed: 3.03 ft at 2:30PM May 21, 2013Observed: 3.03 ft at 3:00PM May 21, 2013Observed: 3.01 ft at 3:30PM May 21, 2013Observed: 3.01 ft at 4:00PM May 21, 2013Observed: 3.04 ft at 4:30PM May 21, 2013Observed: 3.03 ft at 5:00PM May 21, 2013Observed: 3.01 ft at 5:30PM May 21, 2013Observed: 3.01 ft at 6:00PM May 21, 2013Observed: 3 ft at 6:30PM May 21, 2013Observed: 2.97 ft at 7:00PM May 21, 2013Observed: 2.98 ft at 7:30PM May 21, 2013Observed: 2.95 ft at 8:00PM May 21, 2013Observed: 2.95 ft at 8:30PM May 21, 2013Highest Forecast: 2.9 ft 1:00AM May 22, 2013Forecast: 2.7 ft 7:00AM May 22, 2013Forecast: 2.6 ft 1:00PM May 22, 2013Forecast: 2.5 ft 7:00PM May 22, 2013Forecast: 2.5 ft 1:00AM May 23, 2013Forecast: 2.5 ft 7:00AM May 23, 2013Forecast: 2.5 ft 1:00PM May 23, 2013Forecast: 2.5 ft 7:00PM May 23, 2013Forecast: 2.5 ft 1:00AM May 24, 2013Forecast: 2.5 ft 7:00AM May 24, 2013Forecast: 2.4 ft 1:00PM May 24, 2013Forecast: 2.4 ft 7:00PM May 24, 2013Forecast: 2.4 ft 1:00AM May 25, 2013Forecast: 2.4 ft 7:00AM May 25, 2013Forecast: 2.4 ft 1:00PM May 25, 2013Forecast: 2.4 ft 7:00PM May 25, 2013Forecast: 2.4 ft 1:00AM May 26, 2013Forecast: 2.4 ft 7:00AM May 26, 2013USGS--Water Resources of the United StatesBLKO2(plotting HGIRG) Graph Created (9:11PM May 21, 2013)ObservedForecast (issued 8:59AM May 21)Latest observed value: 2.95 ft at 8:30 PM CDT 21-May-2013. Flood Stage is 29 ft
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About this graph
Tabular Data
XML Data
RSS Files
Datum: Not Available
Metadata
NOTE: Gauge readings may be inaccurate during periods of extreme cold.

NOTE: Forecasts for the Chikaskia River near Blackwell are issued routinely year-round.

Return to Area Map
Upstream Gauge - near Corbin Upstream Gauge
Flood Categories (in feet)
Major Flood Stage:32
Moderate Flood Stage:30
Flood Stage:29
Action Stage:26

Historical Crests
(1) 35.36 ft on 09/14/2008
(2) 34.40 ft on 11/01/1998
(3) 34.31 ft on 05/10/1993
(4) 34.28 ft on 10/03/1986
(5) 33.85 ft on 10/11/1973
Show More Historical Crests

Low Water Records
Currently none available.
Legend
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 Collapse
35 Floodwaters cover much of the northeast portions of Blackwell. Residences and businesses suffer significant damages. Street flooding reaches very dangerous depths and speeds. Highways 177 north and 60 east of Blackwell are closed. Blackwell Avenue east of Blackwell... and Hubbard Road southeast of Blackwell are impassable. Rural lands are covered by floodwaters ranging up to 7 feet in depth in extreme northeastern Grant and Kay counties.
34 Floodwaters cover much of the northeast portions of Blackwell. Residences and businesses suffer significant damages. Street flooding reaches very dangerous depths and speeds. Highways 177 north and 60 east of Blackwell will likely be closed. Blackwell Avenue east and Hubbard Road southeast of Blackwell are impassable. Rural lands are covered by floodwaters ranging up to 6 feet in depth in extreme northeastern Grant and Kay counties.
33 Floodwaters cover several city blocks in northeast Blackwell. Some residences may suffer minor flooding and some will be isolated by depths up to 4 feet in streets. Highway 177 north of Blackwell... and Hubbard Road southeast of Blackwell are closed. Blackwell Avenue is overtopped at the bridge crossing. Rural lands are inundated by floodwaters ranging up to 5 feet in depth in extreme northeastern Grant and Kay counties.
32 Several city blocks in northeast Blackwell are affected. Some residences will be surrounded by depths approaching 3 feet in streets. Highway 177 north of Blackwell... and Hubbard Road southeast of Blackwell are closed. Blackwell Avenue is overtopped at the bridge crossing. Rural lands are covered by floodwaters ranging up to 4 feet in depth in extreme northeastern Grant and Kay counties.
31 Several city blocks in the northeast portions of Blackwell may be affected. Streets closest to the river may be nearly impassable... with depths approaching 2 feet. Highway 177 north of Blackwell is overtopped... and Hubbard Road southeast of Blackwell is closed. Rural lands are covered by floodwaters ranging up to 3 feet in depth in extreme northeastern Grant and Kay counties.
30 Several residences may be surrounded with street depths approaching 2 feet in the northeast portions of Blackwell. Highway 177 north of Blackwell may be flooded... while Hubbard Road may be impassable southeast of Blackwell. Rural lands are covered by floodwaters ranging up to 2 feet in depth in extreme northeastern Grant and Kay counties.
29 Low-lying streets in the northeast portions of Blackwell may flood enough to isolate some small areas near the river. Rural areas and local roads in extreme northeastern Grant and Kay counties are under shallow water depths for a few hours. Southeast of Blackwell... Hubbard Road will be briefly covered by shallow depths of water near the river.
28 Low-lying streets may experience nuisance flooding in the northeastern portions of Blackwell. Farmlands and local roads in extreme northeastern Grant and Kay counties may be under shallow water depths for a few hours. Southeast of blackwell... Hubbard Road may be briefly covered by shallow depths of water near the river.
27 Shallow... short duration overflows occur on low-lying bottomlands along and low water crossings over the Chikaskia River in extreme northeastern Grant and Kay counties.
26 Shallow... short duration overflows occur on low-lying bottomlands along and low water crossings over the Chikaskia River in extreme northeastern Grant and Kay counties.
25 Shallow... short duration overflows occur on low-lying bottomlands along and low water crossings over the Chikaskia River in extreme northeastern Grant and Kay counties.
Photos
(1) Upstream view
(2) Downstream view
About This Location Collapse

Latitude: 36.808611° N, Longitude: 97.277500° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame
Gauge Height Flood Stage Uses
NWS stage 0 ft 29 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 29 967.41 ft 996.41 ft Older USGS topographic maps, NGVD29 benchmarks
MSL Not Available Not Available Older USGS topographic maps, MSL benchmarks
Other Not Available Not Available  

Other Data Sources:

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
Norman Weather Forecast Office
National Weather Center
120 David L. Boren Blvd.
Suite 2400
Norman, OK 73072
(405) 325-3816
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Page last modified: 13-Mar-2013 6:27 PM
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