Web Portal Changes: The Advanced Hydrologic Prediction Service (AHPS) hosted at https://water.weather.gov will be replaced by the National Water Prediction Service (NWPS), with a target of March 2024. Existing AHPS content and features will be preserved and expanded within NWPS.

Experimental National Water Center Products: Flood Inundation Mapping services are now available for 10% of the U.S. population. Please visit https://www.weather.gov/owp/operations for more information. The National Hydrologic Discussion, Area Hydrologic Discussion, Flood Hazard Outlook, and real-time geospatial services depicting River Forecast Center and National Water Model forecasts, continue to be accessible via the URL above, as described in the StoryMap here.

Weather Forecast Office Norman, OK

Arkansas Red-Basin River Forecast Center

Hydrograph

River at a Glance

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Probability Information Weekly Chance of Exceeding Levels Chance of Exceeding Levels During Entire Period Short-term Probabilistic Guidance (Experimental)

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Printable Image About this graph Tabular Data (UTC) Tabular Data (CDT) Datum: NAVD88 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 Salt Fork Arkansas River near Alva are issued as needed during times of high water, but are not routinely available. Vertical Datum updated from NGVD29 to NAVD88 by gauge owner.

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Downstream Gauge

Flood Categories (in feet) Major Flood Stage: 18 Moderate Flood Stage: 16.5 Flood Stage: 14.5 Action Stage: 10 Low Stage (in feet): -9999 Historic Crests (1) 15.49 ft on 05/26/2019 (2) 15.24 ft on 10/10/1985 (3) 15.04 ft on 10/30/1979 (4) 14.91 ft on 03/24/1987 (5) 14.83 ft on 11/01/1999 Show More Historic Crests (P): Preliminary values subject to further review. Recent Crests (1) 15.49 ft on 05/26/2019 (2) 13.14 ft on 05/21/2019 (3) 12.41 ft on 05/10/2019 (4) 14.32 ft on 05/08/2019 (5) 14.53 ft on 10/09/2018 Show More Recent Crests (P): Preliminary values subject to further review. Low Water Records (1) 3.50 ft on 09/28/1982 (2) 3.70 ft on 10/24/1991

Zoom Level:16 Legend FEMA Layer 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

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17	Flood waters damage farm property and block many low-lying roads along the river in northeastern Woods and northern Alfalfa counties.
16.5	Flood waters damage farm property and block many low-lying roads along the river in northeastern Woods and northern Alfalfa counties.
15.5	Flood waters inundate farm property and block many low-lying roads along the river in northeastern Woods and northern Alfalfa counties.
14.5	Floodwaters inundate farm property and block many low-lying roads along the river in northeastern Woods and northern Alfalfa counties.
14	Flooding of lowlands to depths up to 3 feet occurs along the river in parts of northeastern Woods and northern Alfalfa counties.
13	Flooding of lowlands to depths up to 2 feet occurs along the river in parts of northeastern Woods and northern Alfalfa counties.
12	Shallow flooding of lowlands to depths up to 1 foot occurs along the river in parts of northeastern Woods and northern Alfalfa counties.
11	Bankfull levels occur along the river in parts of northeastern Woods and northern Alfalfa counties.
10	Near bankfull levels occur along the river in parts of northeastern Woods and northern Alfalfa counties.
Photos (1) Upstream view (2) Downstream view

About This Location

Latitude: 36.815031° N, Longitude: 98.648140° W, Horizontal Datum: NAD83/WGS84 River Stage Reference Frame Gauge Height Flood Stage Uses NWS stage 0 ft 14.5 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 1292.74 1307.24 Survey grade GPS equipment, FEMA flood plain maps, newer USGS topographic maps NGVD 29 1292.04 1306.54 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: Corps of Engineers (COE) Info for Alva U.S. Geological Survey (USGS) Data and Site Info for Alva

Resources

Hydrologic Resources Text Products Past Precipitation Forecast Precipitation River Forecast Centers River Stage Summary Inundation Mapping Locations RFC Past Precipitation Map

Additional Resources Area Hydrographs NWS Precipitation and River Forecasting AHPS Iframes for Developers Mobile iNWS for emergency management Oklahoma Reservoir Conditions Texas Reservoir Conditions USACE Tulsa Reservoir Conditions Snow Information CoCoRaHS Precipitation Data Oklahoma Mesonet Precipitation Data West Texas Mesonet Current Conditions Data

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