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: The National Hydrologic Discussion, Area Hydrologic Discussion, and Flood Hazard Outlook, and real-time geospatial services depicting River Forecast Center and National Water Model forecasts, continue to be accessible via https://www.weather.gov/owp/operations, as described in the StoryMap here.

Weather Forecast Office Greenville-Spartanburg, SC

Southeast River Forecast Center

Hydrograph

River at a Glance

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Printable Image About this graph Tabular Data (UTC) Tabular Data (EDT) Datum: NGVD29 Metadata

NOTE: Forecasts are not available for the Yadkin River at Patterson. Only observed stages are available for this point.

Default Hydrograph Scale to Flood Categories   Return to Area Map

Downstream Gauge

Flood Categories (in feet) Major Flood Stage: 10 Moderate Flood Stage: 7 Flood Stage: 5 Action Stage: 4 Low Stage (in feet): -9999 Historic Crests (1) 12.80 ft on 08/07/1973 (2) 12.70 ft on 08/13/1940 (3) 9.38 ft on 08/17/1994 (4) 8.44 ft on 11/16/1989 (5) 8.25 ft on 10/12/1990 Show More Historic Crests (P): Preliminary values subject to further review. Recent Crests (1) 4.00 ft on 12/24/2015 (2) 5.03 ft on 07/08/2013 (3) 5.04 ft on 07/05/2013 (4) 4.74 ft on 04/16/2011 (5) 4.55 ft on 03/06/2011 (P) Show More Recent Crests (P): Preliminary values subject to further review. Low Water Records (1) 0.50 ft on 05/15/1940 (2) 0.71 ft on 08/23/1988 (3) 0.79 ft on 06/19/2008 (4) 0.90 ft on 05/15/1992 (5) 0.94 ft on 05/27/2008 Show More Low Water Records For more information on your flood risk go to www.floodsmart.gov. Show FEMA's National Flood Hazard Layers FEMA's National Flood Hazard Layers not showing? Why aren't the FEMA National Flood Hazard Layers showing on the ESRI Map? Possible reasons: There are no FEMA National Flood Hazard Layers for the location which you are viewing on ESRI Maps. The FEMA Web Mapping Service (WMS) is down. Note: Your zoom level may have changed. ESRI's zoom levels must be between 14 and 16 to show National Flood Hazard layers.

Zoom Level:14 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

If you notice any errors in the below information, please contact our Webmaster
12	STATE HIGHWAY 286 WILL BEGIN TO FLOOD.
9	HOMES BETWEEN THE DAM AND STATE HIGHWAY 268 WILL BEGIN TO FLOOD
8	ROADS AND BRIDGES BELOW THE DAM WILL BE FLOODED. LOADING DOCKS WILL BEGIN TO FLOOD IN THE SEALED AIR CORPATION PARKING LOT.
7	STATE HIGHWAY 1514 AND 1515 WILL BEGIN TO FLOOD.
6	WATER WILL ENTER PARKING LOT NEAR LOADING DOCKS OF SEALED AIR COMPANY. HOMES BETWEEN HIGHWAY 268 AND THE RIVER WILL BEGIN TO FLOOD. THE HAPPY VALLEY COMMUNITY WILL BEGIN TO FLOOD.
5	INDIAN GRAVE ROAD IN THE HAPPY VALLEY COMMUNITY AND CHEEKS CROSS ROAD JUST BELOW THE DAM WILL BE FLOODED. HOMES NEAR THE RIVER WILL GET WATER INTO BACKYARDS.
3.25	3.25 INCH 12 HR BASIN WIDE RAINFALL CAUSED A 3.5 FT RISE...FROM 1.1 FT TO 4.55 FT
2.5	2.5 BASIN WIDE WILL TAKE PATN7 UP TO 3.5 IN DROUGHT AND 4.5 FT IN NORMAL TIMES.
2	2 INCHES IN 45 MINS CAUSED RIVER TO RISE TO 3.0 FEET...NO FLOODING REPORTED.
1.9	1.9 INCHES IN 1.5 HOURS DID NOT CAUSE FLOODING. RIVER ROSE TO 5 FT (IN DROUGHT).
1.75	1.75 IN 1 HOUR WILL CAUSE THE RIVER TO RISE TO AROUND 3 FT...NO FLOODING REPORTED.
1.5	GENERAL RAIN OF 1.5 IN 6 TO 12 HOURS CAUSED PATN7 TO RISE FROM 1.13 FT TO 2.8 FT
1	1 INCH IN 2 HOURS CAUSED A FT RISE ON CREEK.
Photos (1) Gage at Patterson (2) Looking upstream (3) Looking downstream

About This Location

Latitude: 35.990833° N, Longitude: 81.558333° W, Horizontal Datum: NAD83/WGS84 River Stage Reference Frame Gauge Height Flood Stage Uses NWS stage 0 ft 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 Not Available Not Available 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: U.S. Geological Survey (USGS) Data and Site Info for Patterson

Resources

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

Additional Resources Area Hydrographs NWS Precipitation and River Forecasting AHPS Iframes for Developers Mobile iNWS for emergency management Southeast River Forecast Center SERFC Ensemble River Forecasts Lower Mississippi River Forecast Center LMRFC Ensemble River Forecasts Hourly Precipitation Snow Information

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