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Weather Forecast Office Greenville-Spartanburg, SC Lower Mississippi River Forecast Center
Hydrograph River at a Glance Download Inundation
Mapping		 Weekly Chance of
Exceeding Levels		 Chance of Exceeding Levels
During Entire Period
Swannanoa River at Biltmore Stage (ft)Flow (kcfs)Highest Observation: 2.26 ft at 3:45PM Jun 17, 2013Observed: 2.25 ft at 4:00PM Jun 17, 2013Observed: 2.24 ft at 4:15PM Jun 17, 2013Observed: 2.23 ft at 4:30PM Jun 17, 2013Observed: 2.22 ft at 4:45PM Jun 17, 2013Observed: 2.21 ft at 5:00PM Jun 17, 2013Observed: 2.21 ft at 5:15PM Jun 17, 2013Observed: 2.2 ft at 5:30PM Jun 17, 2013Observed: 2.19 ft at 5:45PM Jun 17, 2013Observed: 2.2 ft at 6:00PM Jun 17, 2013Observed: 2.19 ft at 6:15PM Jun 17, 2013Observed: 2.19 ft at 6:30PM Jun 17, 2013Observed: 2.18 ft at 6:45PM Jun 17, 2013Observed: 2.18 ft at 7:00PM Jun 17, 2013Observed: 2.18 ft at 7:15PM Jun 17, 2013Observed: 2.18 ft at 7:30PM Jun 17, 2013Observed: 2.19 ft at 7:45PM Jun 17, 2013Observed: 2.19 ft at 8:00PM Jun 17, 2013Observed: 2.19 ft at 8:15PM Jun 17, 2013Observed: 2.19 ft at 8:30PM Jun 17, 2013Observed: 2.18 ft at 8:45PM Jun 17, 2013Observed: 2.18 ft at 9:00PM Jun 17, 2013Observed: 2.18 ft at 9:15PM Jun 17, 2013Observed: 2.18 ft at 9:30PM Jun 17, 2013Observed: 2.18 ft at 9:45PM Jun 17, 2013Observed: 2.18 ft at 10:00PM Jun 17, 2013Observed: 2.18 ft at 10:15PM Jun 17, 2013Observed: 2.17 ft at 10:30PM Jun 17, 2013Observed: 2.16 ft at 10:45PM Jun 17, 2013Observed: 2.17 ft at 11:00PM Jun 17, 2013Observed: 2.16 ft at 11:15PM Jun 17, 2013Observed: 2.16 ft at 11:30PM Jun 17, 2013Observed: 2.15 ft at 11:45PM Jun 17, 2013Observed: 2.15 ft at 12:00AM Jun 18, 2013Observed: 2.15 ft at 12:15AM Jun 18, 2013Observed: 2.15 ft at 12:30AM Jun 18, 2013Observed: 2.15 ft at 12:45AM Jun 18, 2013Observed: 2.15 ft at 1:00AM Jun 18, 2013Observed: 2.14 ft at 1:15AM Jun 18, 2013Observed: 2.14 ft at 1:30AM Jun 18, 2013Observed: 2.13 ft at 1:45AM Jun 18, 2013Observed: 2.13 ft at 2:00AM Jun 18, 2013Observed: 2.14 ft at 2:15AM Jun 18, 2013Observed: 2.13 ft at 2:30AM Jun 18, 2013Observed: 2.14 ft at 2:45AM Jun 18, 2013Observed: 2.14 ft at 3:00AM Jun 18, 2013Observed: 2.14 ft at 3:15AM Jun 18, 2013Observed: 2.14 ft at 3:30AM Jun 18, 2013Observed: 2.14 ft at 3:45AM Jun 18, 2013Observed: 2.14 ft at 4:00AM Jun 18, 2013Observed: 2.14 ft at 4:15AM Jun 18, 2013Observed: 2.14 ft at 4:30AM Jun 18, 2013Observed: 2.14 ft at 4:45AM Jun 18, 2013Observed: 2.14 ft at 5:00AM Jun 18, 2013Observed: 2.15 ft at 5:15AM Jun 18, 2013Observed: 2.14 ft at 5:30AM Jun 18, 2013Observed: 2.15 ft at 5:45AM Jun 18, 2013Observed: 2.15 ft at 6:00AM Jun 18, 2013Observed: 2.14 ft at 6:15AM Jun 18, 2013Observed: 2.14 ft at 6:30AM Jun 18, 2013Observed: 2.14 ft at 6:45AM Jun 18, 2013Observed: 2.15 ft at 7:00AM Jun 18, 2013Observed: 2.15 ft at 7:15AM Jun 18, 2013Observed: 2.15 ft at 7:30AM Jun 18, 2013Observed: 2.15 ft at 7:45AM Jun 18, 2013Observed: 2.15 ft at 8:00AM Jun 18, 2013Observed: 2.14 ft at 8:15AM Jun 18, 2013Observed: 2.14 ft at 8:30AM Jun 18, 2013Observed: 2.14 ft at 8:45AM Jun 18, 2013Observed: 2.14 ft at 9:00AM Jun 18, 2013Observed: 2.15 ft at 9:15AM Jun 18, 2013Observed: 2.15 ft at 9:30AM Jun 18, 2013Observed: 2.15 ft at 9:45AM Jun 18, 2013Observed: 2.15 ft at 10:00AM Jun 18, 2013Observed: 2.15 ft at 10:15AM Jun 18, 2013Observed: 2.15 ft at 10:30AM Jun 18, 2013Observed: 2.14 ft at 10:45AM Jun 18, 2013Observed: 2.15 ft at 11:00AM Jun 18, 2013Observed: 2.15 ft at 11:15AM Jun 18, 2013Observed: 2.15 ft at 11:30AM Jun 18, 2013Observed: 2.15 ft at 11:45AM Jun 18, 2013Observed: 2.15 ft at 12:00PM Jun 18, 2013Observed: 2.16 ft at 12:15PM Jun 18, 2013Observed: 2.15 ft at 12:30PM Jun 18, 2013Observed: 2.15 ft at 12:45PM Jun 18, 2013Observed: 2.16 ft at 1:00PM Jun 18, 2013Observed: 2.15 ft at 1:15PM Jun 18, 2013Observed: 2.16 ft at 1:30PM Jun 18, 2013Observed: 2.15 ft at 1:45PM Jun 18, 2013Observed: 2.15 ft at 2:00PM Jun 18, 2013Observed: 2.16 ft at 2:15PM Jun 18, 2013Observed: 2.16 ft at 2:30PM Jun 18, 2013Observed: 2.16 ft at 2:45PM Jun 18, 2013Observed: 2.17 ft at 3:00PM Jun 18, 2013Observed: 2.17 ft at 3:15PM Jun 18, 2013Observed: 2.17 ft at 3:30PM Jun 18, 2013Observed: 2.16 ft at 3:45PM Jun 18, 2013Observed: 2.16 ft at 4:00PM Jun 18, 2013Observed: 2.16 ft at 4:15PM Jun 18, 2013Observed: 2.15 ft at 4:30PM Jun 18, 2013Observed: 2.15 ft at 4:45PM Jun 18, 2013Observed: 2.15 ft at 5:00PM Jun 18, 2013Observed: 2.15 ft at 5:15PM Jun 18, 2013Observed: 2.15 ft at 5:30PM Jun 18, 2013Observed: 2.15 ft at 5:45PM Jun 18, 2013Observed: 2.16 ft at 6:00PM Jun 18, 2013Observed: 2.15 ft at 6:15PM Jun 18, 2013Observed: 2.15 ft at 6:30PM Jun 18, 2013Observed: 2.15 ft at 6:45PM Jun 18, 2013Observed: 2.16 ft at 7:00PM Jun 18, 2013Observed: 2.15 ft at 7:15PM Jun 18, 2013Observed: 2.15 ft at 7:30PM Jun 18, 2013Observed: 2.15 ft at 7:45PM Jun 18, 2013Observed: 2.15 ft at 8:00PM Jun 18, 2013Observed: 2.15 ft at 8:15PM Jun 18, 2013Observed: 2.16 ft at 8:30PM Jun 18, 2013Observed: 2.17 ft at 8:45PM Jun 18, 2013Observed: 2.16 ft at 9:00PM Jun 18, 2013Observed: 2.17 ft at 9:15PM Jun 18, 2013Observed: 2.17 ft at 9:30PM Jun 18, 2013Observed: 2.18 ft at 9:45PM Jun 18, 2013Observed: 2.19 ft at 10:00PM Jun 18, 2013Observed: 2.2 ft at 10:15PM Jun 18, 2013Observed: 2.2 ft at 10:30PM Jun 18, 2013Observed: 2.2 ft at 10:45PM Jun 18, 2013Observed: 2.21 ft at 11:00PM Jun 18, 2013Observed: 2.21 ft at 11:15PM Jun 18, 2013Observed: 2.21 ft at 11:30PM Jun 18, 2013Observed: 2.21 ft at 11:45PM Jun 18, 2013Observed: 2.21 ft at 12:00AM Jun 19, 2013Observed: 2.21 ft at 12:15AM Jun 19, 2013Observed: 2.21 ft at 12:30AM Jun 19, 2013Observed: 2.2 ft at 12:45AM Jun 19, 2013Observed: 2.21 ft at 1:00AM Jun 19, 2013Observed: 2.2 ft at 1:15AM Jun 19, 2013Observed: 2.2 ft at 1:30AM Jun 19, 2013Observed: 2.2 ft at 1:45AM Jun 19, 2013Observed: 2.2 ft at 2:00AM Jun 19, 2013Observed: 2.19 ft at 2:15AM Jun 19, 2013Observed: 2.19 ft at 2:30AM Jun 19, 2013Observed: 2.19 ft at 2:45AM Jun 19, 2013Observed: 2.18 ft at 3:00AM Jun 19, 2013Observed: 2.17 ft at 3:15AM Jun 19, 2013Observed: 2.17 ft at 3:30AM Jun 19, 2013Observed: 2.17 ft at 3:45AM Jun 19, 2013Observed: 2.17 ft at 4:00AM Jun 19, 2013Observed: 2.16 ft at 4:15AM Jun 19, 2013Observed: 2.17 ft at 4:30AM Jun 19, 2013Observed: 2.16 ft at 4:45AM Jun 19, 2013Observed: 2.16 ft at 5:00AM Jun 19, 2013Observed: 2.16 ft at 5:15AM Jun 19, 2013Observed: 2.16 ft at 5:30AM Jun 19, 2013Observed: 2.15 ft at 5:45AM Jun 19, 2013Observed: 2.16 ft at 6:00AM Jun 19, 2013Observed: 2.16 ft at 6:15AM Jun 19, 2013Observed: 2.16 ft at 6:30AM Jun 19, 2013Observed: 2.16 ft at 6:45AM Jun 19, 2013Observed: 2.15 ft at 7:00AM Jun 19, 2013Observed: 2.15 ft at 7:15AM Jun 19, 2013Observed: 2.15 ft at 7:30AM Jun 19, 2013Observed: 2.15 ft at 7:45AM Jun 19, 2013Observed: 2.15 ft at 8:00AM Jun 19, 2013Observed: 2.15 ft at 8:15AM Jun 19, 2013Observed: 2.15 ft at 8:30AM Jun 19, 2013Observed: 2.15 ft at 8:45AM Jun 19, 2013Observed: 2.15 ft at 9:00AM Jun 19, 2013Observed: 2.15 ft at 9:15AM Jun 19, 2013Observed: 2.15 ft at 9:30AM Jun 19, 2013Observed: 2.15 ft at 9:45AM Jun 19, 2013Observed: 2.15 ft at 10:00AM Jun 19, 2013Observed: 2.15 ft at 10:15AM Jun 19, 2013Observed: 2.15 ft at 10:30AM Jun 19, 2013Observed: 2.15 ft at 10:45AM Jun 19, 2013Observed: 2.15 ft at 11:00AM Jun 19, 2013Observed: 2.14 ft at 11:15AM Jun 19, 2013Observed: 2.14 ft at 11:30AM Jun 19, 2013Observed: 2.15 ft at 11:45AM Jun 19, 2013Observed: 2.15 ft at 12:00PM Jun 19, 2013Observed: 2.15 ft at 12:15PM Jun 19, 2013Observed: 2.14 ft at 12:30PM Jun 19, 2013Observed: 2.14 ft at 12:45PM Jun 19, 2013Observed: 2.15 ft at 1:00PM Jun 19, 2013Observed: 2.14 ft at 1:15PM Jun 19, 2013Observed: 2.14 ft at 1:30PM Jun 19, 2013Observed: 2.14 ft at 1:45PM Jun 19, 2013Observed: 2.15 ft at 2:00PM Jun 19, 2013Observed: 2.14 ft at 2:15PM Jun 19, 2013Observed: 2.14 ft at 2:30PM Jun 19, 2013Observed: 2.13 ft at 2:45PM Jun 19, 2013Observed: 2.13 ft at 3:00PM Jun 19, 2013Highest Forecast: 2.2 ft 8:00PM Jun 19, 2013Highest Forecast: 2.2 ft 2:00AM Jun 20, 2013Highest Forecast: 2.2 ft 8:00AM Jun 20, 2013Highest Forecast: 2.2 ft 2:00PM Jun 20, 2013Highest Forecast: 2.2 ft 8:00PM Jun 20, 2013Highest Forecast: 2.2 ft 2:00AM Jun 21, 2013Highest Forecast: 2.2 ft 8:00AM Jun 21, 2013Highest Forecast: 2.2 ft 2:00PM Jun 21, 2013Highest Forecast: 2.2 ft 8:00PM Jun 21, 2013Forecast: 2.1 ft 2:00AM Jun 22, 2013Forecast: 2.1 ft 8:00AM Jun 22, 2013Forecast: 2.1 ft 2:00PM Jun 22, 2013Forecast: 2.1 ft 8:00PM Jun 22, 2013Forecast: 2.1 ft 2:00AM Jun 23, 2013Forecast: 2.1 ft 8:00AM Jun 23, 2013Forecast: 2.1 ft 2:00PM Jun 23, 2013USGS--Water Resources of the United StatesBLTN7(plotting HGIRG) Graph Created (3:33PM Jun 19, 2013)ObservedForecast (issued 10:25AM Jun 19)Latest observed value: 2.13 ft at 3:00 PM EDT 19-Jun-2013. Flood Stage is 10 ft
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About this graph
Tabular Data
XML Data
RSS Files
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.

Reliability of the Forecast: Forecast data shown here are guidance values only. Please refer to your local NWS office.

NOTE: Forecasts for the Swannanoa River at Biltmore are issued routinely year-round.

Return to Area Map
Upstream Locations Upstream Gauge Downstream Gauge Downstream Gauge - at Asheville
Flood Categories (in feet)
Major Flood Stage:16.5
Moderate Flood Stage:14.5
Flood Stage:10
Action Stage:9

Historical Crests
(1) 26.00 ft on 04/01/1791
(2) 20.70 ft on 07/16/1916
(3) 19.22 ft on 09/08/2004
(4) 19.00 ft on 08/13/1940
(5) 18.74 ft on 08/16/1928
Show More Historical Crests

Low Water Records
(1) 0.65 ft on 07/17/1936
(2) 0.85 ft on 07/22/1986
(3) 0.96 ft on 11/07/1939
(4) 0.97 ft on 10/15/1941
(5) 1.01 ft on 09/12/2002
Show More Low Water Records
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
26 RECORD FLOOD STAGES WILL CAUSE SERIOUS DISRUPTION OF ACTIVITIES IN THE VALLEY. MODERATE FLOODING WILL OCCUR BETWEEN AZALEA STREET AND CHEESBOROUGH BRIDGE.
21.5 EXPECT NEAR RECORD FLOODING IN BILTMORE VILLAGE...CAUSING DISRUPTION OF ACTIVITIES IN THE VALLEY.
19 MAJOR FLOODING OF BUSINESSES AND HOMES WILL OCCUR ALONG THE RIVER BETWEEN CHEESBOROUGH BRIDGE AND STONER ROADS. AT THIS LEVEL FLOODING WILL BE SIMILAR TO THE FLOOD THAT OCCURRED ON SEPTEMBER 8 2004 WITH HURRICANE FRANCES.
18.5 MAJOR FLOODING BETWEEN THE RIVER AND BROCK STREET WILL EXTEND OVER TO SWAN...BOSTON AND ANGLE STREETS.
18 MAJOR FLOODING OF BUSINESSES AND HOMES ALONG THE RIVER WILL OCCUR DOWNSTREAM OF STONER ROAD. PARTS OF THE NORFOLK SOUTHERN RAILROAD WILL BE FLOODED.
16.51 MAJOR FLOOD STAGE...THE BILTMORE AVENUE ROAD NORTH AND SOUTH OF THE BRIDGE WILL BE FLOODED. MOST BUILDINGS AND OTHER AREAS WILL BE FLOODED BETWEEN THE RIVER AND NORFOLK SOUTHERN RAILROAD TRACKS. AT THIS LEVEL FLOODING WILL BE SIMILAR TO THE FLOOD OF SEPTEMBER SEVENTEENTH 2004.
15.5 MODERATE FLOODING CONTINUES...BUILDINGS AND OTHER AREAS BETWEEN THE RIVER AND BROCK AND FAIRVIEW ROADS WILL BE FLOODED.
15 MODERATE FLOODING OF BUILDINGS ALONG BROOK STREET...HENDERSONVILLE ROAD AND DECATUR STREET WILL BEGIN. WATER REACHES SWEETEN CK RD BETWEEN BILTMORE AVE AND LONDON RD.
14.5 MODERATE FLOODING BEGINS...SWEETEN CREEK ROAD WILL BE CLOSED ALONG THE SWANNANOA RIVER RD EAST OF BILTMORE AVENUE. BILTMORE VILLAGE WILL BE FLOODED.
12 WATER WILL BEGIN TO FLOOD SOME BUILDINGS ON GARFIELD STREET. MOST AREAS ALONG SWANNANOA RIVER ROAD... FROM CALEDONIA ROAD TO BILTMORE AVE WILL BE FLOODED.
11.5 WATER REACHES SOME BUILDINGS ALONG GARFIELD STREET BUT DOES NOT GET INTO THE BUILDINGS.
10 FLOOD STAGE- THE RIVER WILL CAUSE BACKWATER EFFECTS ON SWEETEN CREEK...WHICH WILL APPROACH SOME BUILDINGS ALONG GARFIELD ROAD. WATER WILL BEGIN FLOODING PARTS OF NC 81...CALEDONIA ROAD TO GLENDALE ROAD AND APPROACHS THOMPSON AND LODGE ROADS.
9 THE DEER PARK-BILTMORE ESTATES BRIDGE WILL LIKELLY BE OVERTOPPED.
8.5 BANKFULL STAGE...LOW LYING AREAS BETWEEN SWANNONOA RIVER ROAD AND THE RIVER WILL BEGIN TO FLOOD. BACKWATER ON SWEETEN CREEK WILL ALSO START TO FLOOD LOW LYING AREAS NEAR THE CREEK.
Photos
(1) Biltmore staff gages- readings are at top of staff gage
(2) Swannanoa River at Biltmore looking downstream
(3) Swannanoa River at Biltmore looking upstream
About This Location Collapse

Latitude: 35.568333° N, Longitude: 82.544722° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame		 Gauge Height Flood Stage Uses
NWS stage 0 ft 10 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 1976.58 ft 1986.58 ft Older USGS topographic maps, NGVD29 benchmarks
MSL 1976.58 ft 1986.58 ft Older USGS topographic maps, MSL benchmarks
Other Not Available Not Available  

Other Data Sources:
Additional Information Collapse
Ensemble Quantitative Precipitation Forecast (QPF) Hydrographs for this site are now available at: http://www.crh.noaa.gov/crh/rfc/RFCoutputMap.php?gph=P&lid=BLTN7&hsa=GSP&rfc=lmrfc (best view with FireFox software)
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
Greenville-Spartanburg Weather Forecast Office
1549 GSP Drive
Greer, SC 29651
(864) 848-3859
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Page last modified: 13-Mar-2013 6:34 PM 		Disclaimer
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