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Hydrograph River at a Glance Download
Swannanoa River at Black Mountain Park Stage (ft)Observed: 4.55 ft at 8:00PM Jul 25, 2020Observed: 4.25 ft at 8:10PM Jul 25, 2020Observed: 4.57 ft at 8:15PM Jul 25, 2020Observed: 4.31 ft at 8:50PM Jul 25, 2020Observed: 4.59 ft at 8:55PM Jul 25, 2020Observed: 4.67 ft at 9:15PM Jul 25, 2020Observed: 4.53 ft at 5:05AM Jul 26, 2020Observed: 4.49 ft at 11:00AM Jul 26, 2020Observed: 4.65 ft at 4:05PM Jul 26, 2020Observed: 4.31 ft at 4:10PM Jul 26, 2020Observed: 4.57 ft at 4:15PM Jul 26, 2020Observed: 4.29 ft at 4:20PM Jul 26, 2020Observed: 4.13 ft at 4:30PM Jul 26, 2020Observed: 4.57 ft at 4:35PM Jul 26, 2020Observed: 4.59 ft at 4:40PM Jul 26, 2020Observed: 4.59 ft at 4:55PM Jul 26, 2020Observed: 4.49 ft at 10:55PM Jul 26, 2020Observed: 4.45 ft at 4:50AM Jul 27, 2020Observed: 4.53 ft at 10:50AM Jul 27, 2020Observed: 4.43 ft at 10:45PM Jul 27, 2020Observed: 4.45 ft at 4:40AM Jul 28, 2020Observed: 4.45 ft at 10:35AM Jul 28, 2020Observed: 4.43 ft at 4:35PM Jul 28, 2020Observed: 4.41 ft at 10:30PM Jul 28, 2020Observed: 4.41 ft at 4:30AM Jul 29, 2020Observed: 4.43 ft at 10:25AM Jul 29, 2020Observed: 4.41 ft at 4:20PM Jul 29, 2020Observed: 4.41 ft at 4:25PM Jul 29, 2020Observed: 4.41 ft at 6:25PM Jul 29, 2020Observed: 4.25 ft at 6:30PM Jul 29, 2020Observed: 4.97 ft at 6:35PM Jul 29, 2020Observed: 4.69 ft at 6:45PM Jul 29, 2020Observed: 4.49 ft at 7:35PM Jul 29, 2020Observed: 4.57 ft at 7:40PM Jul 29, 2020Observed: 4.41 ft at 8:10PM Jul 29, 2020Observed: 4.39 ft at 8:20PM Jul 29, 2020Observed: 4.43 ft at 8:35PM Jul 29, 2020Observed: 4.71 ft at 8:40PM Jul 29, 2020Observed: 4.75 ft at 8:55PM Jul 29, 2020Observed: 4.51 ft at 9:00PM Jul 29, 2020Observed: 4.15 ft at 9:25PM Jul 29, 2020Observed: 4.37 ft at 9:35PM Jul 29, 2020Observed: 4.13 ft at 9:45PM Jul 29, 2020Observed: 4.37 ft at 9:50PM Jul 29, 2020Observed: 4.65 ft at 9:55PM Jul 29, 2020Observed: 4.35 ft at 10:15PM Jul 29, 2020Observed: 4.55 ft at 10:20PM Jul 29, 2020Observed: 4.09 ft at 10:25PM Jul 29, 2020Observed: 4.57 ft at 10:30PM Jul 29, 2020Observed: 4.29 ft at 10:45PM Jul 29, 2020Observed: 4.59 ft at 10:50PM Jul 29, 2020Observed: 4.59 ft at 10:55PM Jul 29, 2020Observed: 4.37 ft at 4:15AM Jul 30, 2020Observed: 4.41 ft at 10:15AM Jul 30, 2020Observed: 4.41 ft at 4:10PM Jul 30, 2020Observed: 4.75 ft at 7:40PM Jul 30, 2020Observed: 5.03 ft at 7:55PM Jul 30, 2020Observed: 5.13 ft at 8:10PM Jul 30, 2020Observed: 5.13 ft at 8:15PM Jul 30, 2020Observed: 4.65 ft at 8:20PM Jul 30, 2020Observed: 5.23 ft at 8:25PM Jul 30, 2020Observed: 4.81 ft at 8:30PM Jul 30, 2020Observed: 5.05 ft at 8:35PM Jul 30, 2020Observed: 4.31 ft at 8:55PM Jul 30, 2020Observed: 4.45 ft at 9:40PM Jul 30, 2020Observed: 4.73 ft at 9:45PM Jul 30, 2020Observed: 4.41 ft at 9:55PM Jul 30, 2020Observed: 4.85 ft at 10:10PM Jul 30, 2020Observed: 4.53 ft at 10:25PM Jul 30, 2020Observed: 4.39 ft at 10:50PM Jul 30, 2020Observed: 4.23 ft at 11:25PM Jul 30, 2020Observed: 4.73 ft at 11:30PM Jul 30, 2020Observed: 4.31 ft at 11:35PM Jul 30, 2020Observed: 4.69 ft at 11:40PM Jul 30, 2020Observed: 4.63 ft at 11:45PM Jul 30, 2020Observed: 4.27 ft at 11:50PM Jul 30, 2020Observed: 4.27 ft at 11:55PM Jul 30, 2020Observed: 4.17 ft at 12:25AM Jul 31, 2020Observed: 4.67 ft at 12:30AM Jul 31, 2020Observed: 4.17 ft at 12:35AM Jul 31, 2020Observed: 4.13 ft at 12:50AM Jul 31, 2020Observed: 4.61 ft at 1:05AM Jul 31, 2020Observed: 4.33 ft at 1:10AM Jul 31, 2020Observed: 4.57 ft at 1:35AM Jul 31, 2020Observed: 4.55 ft at 1:50AM Jul 31, 2020Observed: 4.27 ft at 2:35AM Jul 31, 2020Observed: 4.67 ft at 2:40AM Jul 31, 2020Observed: 4.49 ft at 4:05AM Jul 31, 2020Observed: 4.57 ft at 4:55AM Jul 31, 2020Observed: 4.53 ft at 6:15AM Jul 31, 2020Observed: 4.49 ft at 10:00AM Jul 31, 2020Observed: 4.49 ft at 10:05AM Jul 31, 2020Observed: 4.45 ft at 4:00PM Jul 31, 2020Observed: 4.33 ft at 7:35PM Jul 31, 2020Observed: 5.17 ft at 7:55PM Jul 31, 2020Observed: 9.39 ft at 8:25PM Jul 31, 2020Highest Observation: 10.17 ft at 8:35PM Jul 31, 2020Observed: 9.83 ft at 9:15PM Jul 31, 2020Observed: 9.65 ft at 9:20PM Jul 31, 2020Observed: 9.39 ft at 9:25PM Jul 31, 2020Observed: 9.07 ft at 9:45PM Jul 31, 2020Observed: 9.21 ft at 10:10PM Jul 31, 2020Observed: 9.61 ft at 10:30PM Jul 31, 2020Observed: 9.03 ft at 10:40PM Jul 31, 2020Observed: 8.07 ft at 10:55PM Jul 31, 2020Observed: 7.47 ft at 11:15PM Jul 31, 2020Observed: 7.21 ft at 11:30PM Jul 31, 2020Observed: 6.97 ft at 11:50PM Jul 31, 2020Observed: 6.17 ft at 1:10AM Aug 01, 2020Observed: 5.45 ft at 1:25AM Aug 01, 2020Observed: 4.97 ft at 1:45AM Aug 01, 2020Observed: 5.39 ft at 1:50AM Aug 01, 2020Observed: 5.39 ft at 2:00AM Aug 01, 2020Observed: 5.95 ft at 2:10AM Aug 01, 2020Observed: 5.63 ft at 2:15AM Aug 01, 2020Observed: 6.05 ft at 2:20AM Aug 01, 2020Observed: 6.05 ft at 2:25AM Aug 01, 2020Observed: 5.75 ft at 2:30AM Aug 01, 2020Observed: 5.51 ft at 2:35AM Aug 01, 2020Observed: 5.23 ft at 2:45AM Aug 01, 2020Observed: 4.65 ft at 2:55AM Aug 01, 2020Observed: 5.83 ft at 3:00AM Aug 01, 2020Observed: 5.95 ft at 3:05AM Aug 01, 2020Observed: 5.95 ft at 3:10AM Aug 01, 2020Observed: 5.65 ft at 3:15AM Aug 01, 2020Observed: 4.73 ft at 3:20AM Aug 01, 2020Observed: 5.81 ft at 3:25AM Aug 01, 2020Observed: 5.25 ft at 3:30AM Aug 01, 2020Observed: 4.49 ft at 3:35AM Aug 01, 2020Observed: 4.79 ft at 3:45AM Aug 01, 2020Observed: 5.41 ft at 3:50AM Aug 01, 2020Observed: 5.31 ft at 3:55AM Aug 01, 2020Observed: 5.21 ft at 4:05AM Aug 01, 2020Observed: 5.65 ft at 4:10AM Aug 01, 2020Observed: 5.17 ft at 4:15AM Aug 01, 2020Observed: 4.71 ft at 4:20AM Aug 01, 2020Observed: 5.15 ft at 4:25AM Aug 01, 2020Observed: 4.71 ft at 4:30AM Aug 01, 2020Observed: 5.07 ft at 4:35AM Aug 01, 2020Observed: 5.07 ft at 4:40AM Aug 01, 2020Observed: 5.21 ft at 4:45AM Aug 01, 2020Observed: 5.59 ft at 4:55AM Aug 01, 2020Observed: 5.11 ft at 5:00AM Aug 01, 2020Observed: 5.37 ft at 5:05AM Aug 01, 2020Observed: 4.91 ft at 5:10AM Aug 01, 2020Observed: 5.37 ft at 5:15AM Aug 01, 2020Observed: 5.77 ft at 5:20AM Aug 01, 2020Observed: 4.37 ft at 5:25AM Aug 01, 2020Observed: 5.63 ft at 5:30AM Aug 01, 2020Observed: 5.47 ft at 5:35AM Aug 01, 2020Observed: 5.45 ft at 5:40AM Aug 01, 2020Observed: 5.03 ft at 5:50AM Aug 01, 2020Observed: 5.47 ft at 6:00AM Aug 01, 2020Observed: 4.99 ft at 6:05AM Aug 01, 2020Observed: 4.79 ft at 6:10AM Aug 01, 2020Observed: 5.01 ft at 6:20AM Aug 01, 2020Observed: 5.07 ft at 6:35AM Aug 01, 2020Observed: 4.95 ft at 6:40AM Aug 01, 2020Observed: 4.95 ft at 6:45AM Aug 01, 2020Observed: 5.07 ft at 6:50AM Aug 01, 2020Observed: 4.53 ft at 6:55AM Aug 01, 2020Observed: 4.85 ft at 7:15AM Aug 01, 2020Observed: 4.33 ft at 7:20AM Aug 01, 2020Observed: 4.55 ft at 7:35AM Aug 01, 2020Observed: 5.09 ft at 7:40AM Aug 01, 2020Observed: 4.83 ft at 7:45AM Aug 01, 2020Observed: 4.49 ft at 7:50AM Aug 01, 2020Observed: 4.69 ft at 8:00AM Aug 01, 2020Observed: 4.95 ft at 8:10AM Aug 01, 2020Observed: 5.05 ft at 8:15AM Aug 01, 2020Observed: 4.79 ft at 8:20AM Aug 01, 2020Observed: 5.29 ft at 8:25AM Aug 01, 2020Observed: 4.87 ft at 8:30AM Aug 01, 2020Observed: 5.17 ft at 8:35AM Aug 01, 2020Observed: 4.73 ft at 8:40AM Aug 01, 2020Observed: 4.35 ft at 8:45AM Aug 01, 2020Observed: 5.19 ft at 8:50AM Aug 01, 2020Observed: 4.61 ft at 8:55AM Aug 01, 2020Observed: 4.87 ft at 9:00AM Aug 01, 2020Observed: 4.77 ft at 9:10AM Aug 01, 2020Observed: 5.35 ft at 9:25AM Aug 01, 2020Observed: 5.43 ft at 9:30AM Aug 01, 2020Observed: 5.41 ft at 9:40AM Aug 01, 2020Observed: 5.47 ft at 9:45AM Aug 01, 2020Observed: 4.41 ft at 9:50AM Aug 01, 2020Observed: 4.85 ft at 10:00AM Aug 01, 2020Observed: 4.59 ft at 10:05AM Aug 01, 2020Observed: 5.67 ft at 10:15AM Aug 01, 2020Observed: 4.69 ft at 10:30AM Aug 01, 2020Observed: 4.43 ft at 10:35AM Aug 01, 2020Observed: 4.61 ft at 10:45AM Aug 01, 2020Observed: 5.01 ft at 10:50AM Aug 01, 2020Observed: 4.73 ft at 10:55AM Aug 01, 2020Observed: 5.41 ft at 11:00AM Aug 01, 2020Observed: 4.61 ft at 11:05AM Aug 01, 2020Observed: 4.61 ft at 11:10AM Aug 01, 2020Observed: 4.79 ft at 11:15AM Aug 01, 2020Observed: 4.53 ft at 11:25AM Aug 01, 2020Observed: 5.37 ft at 11:40AM Aug 01, 2020Observed: 4.87 ft at 11:50AM Aug 01, 2020Observed: 4.41 ft at 12:00PM Aug 01, 2020Observed: 4.15 ft at 12:15PM Aug 01, 2020Observed: 4.65 ft at 12:40PM Aug 01, 2020Observed: 4.65 ft at 12:45PM Aug 01, 2020Observed: 4.67 ft at 12:50PM Aug 01, 2020Observed: 4.79 ft at 12:55PM Aug 01, 2020Observed: 5.27 ft at 1:00PM Aug 01, 2020Observed: 5.29 ft at 1:20PM Aug 01, 2020Observed: 5.05 ft at 1:30PM Aug 01, 2020Observed: 5.01 ft at 1:50PM Aug 01, 2020Observed: 5.29 ft at 1:55PM Aug 01, 2020Observed: 4.95 ft at 2:05PM Aug 01, 2020Observed: 5.27 ft at 2:10PM Aug 01, 2020Observed: 5.23 ft at 2:25PM Aug 01, 2020Observed: 4.97 ft at 3:00PM Aug 01, 2020Observed: 4.97 ft at 3:05PM Aug 01, 2020Observed: 5.27 ft at 3:15PM Aug 01, 2020Observed: 5.21 ft at 3:50PM Aug 01, 2020Observed: 5.21 ft at 4:15PM Aug 01, 2020Observed: 5.21 ft at 4:20PM Aug 01, 2020Observed: 4.95 ft at 6:55PM Aug 01, 2020Observed: 5.01 ft at 8:25PM Aug 01, 2020Observed: 5.07 ft at 8:55PM Aug 01, 2020Observed: 5.09 ft at 10:00PM Aug 01, 2020Observed: 5.09 ft at 10:05PM Aug 01, 2020Observed: 5.05 ft at 11:15PM Aug 01, 2020Observed: 4.99 ft at 11:35PM Aug 01, 2020Observed: 5.01 ft at 12:25AM Aug 02, 2020Observed: 4.69 ft at 12:40AM Aug 02, 2020Observed: 5.01 ft at 12:45AM Aug 02, 2020Observed: 4.91 ft at 2:10AM Aug 02, 2020Observed: 4.91 ft at 2:15AM Aug 02, 2020Observed: 4.67 ft at 3:25AM Aug 02, 2020Observed: 4.87 ft at 9:40AM Aug 02, 2020Observed: 4.81 ft at 3:40PM Aug 02, 2020Observed: 4.77 ft at 3:35AM Aug 03, 2020Observed: 4.75 ft at 9:30AM Aug 03, 2020Observed: 6.49 ft at 1:50PM Aug 03, 2020Observed: 6.21 ft at 2:05PM Aug 03, 2020Observed: 5.51 ft at 2:35PM Aug 03, 2020Observed: 5.91 ft at 2:45PM Aug 03, 2020Observed: 5.07 ft at 3:00PM Aug 03, 2020Observed: 5.39 ft at 3:10PM Aug 03, 2020Observed: 5.49 ft at 3:20PM Aug 03, 2020Observed: 5.43 ft at 3:25PM Aug 03, 2020Observed: 5.63 ft at 3:40PM Aug 03, 2020Observed: 5.01 ft at 3:45PM Aug 03, 2020Observed: 4.69 ft at 4:05PM Aug 03, 2020Observed: 4.83 ft at 4:15PM Aug 03, 2020Observed: 5.19 ft at 4:25PM Aug 03, 2020Observed: 5.49 ft at 4:30PM Aug 03, 2020Observed: 5.05 ft at 4:50PM Aug 03, 2020Observed: 5.29 ft at 4:55PM Aug 03, 2020Observed: 5.37 ft at 5:35PM Aug 03, 2020Observed: 5.01 ft at 6:30PM Aug 03, 2020Observed: 5.35 ft at 6:35PM Aug 03, 2020Observed: 5.23 ft at 9:25PM Aug 03, 2020Observed: 5.19 ft at 10:55PM Aug 03, 2020Observed: 5.07 ft at 3:20AM Aug 04, 2020BMPN7(plotting HGIRR) Graph Created (4:50AM Aug 4, 2020)ObservedLatest observed value: 5.07 ft at 3:20 AM EDT 4-Aug-2020. Flood Stage is 10 ft
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About this graph
Tabular Data (UTC)
Tabular Data (EDT)
XML Data
RSS Files
Datum: Not Available
Metadata
NOTE: Forecasts are not available for the Swannanoa River at Black Mountain Park. Only observed stages are available for this point.
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Downstream Gauge Downstream Locations
Flood Categories (in feet)
Major Flood Stage: 15
Moderate Flood Stage: 12
Flood Stage: 10
Action Stage: 9
Low Stage (in feet): 0

Historic Crests
(1) 9.06 ft on 05/06/2013
(2) 7.16 ft on 01/30/2013
(3) 5.64 ft on 08/26/2008
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 9.06 ft on 05/06/2013
(2) 7.16 ft on 01/30/2013
(3) 4.82 ft on 12/01/2010
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
Currently none available.

For more information on your flood risk go to www.floodsmart.gov.

Zoom Level:15
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
If you notice any errors in the below information, please contact our Webmaster
15 Major Flood Stage. The Swannanoa River is approaching I-40 and has inundated The Oaks Trail steel foot bridge. Significant flooding of the nearby Ingles shopping center parking lot is likely.
12 Moderate Flood Stage. The Swannanoa River is approaching The Oaks Trail steel foot bridge and the nearby Ingles shopping center parking lot. Significant flooding of Veterans Park, River Trail Loop, Veterans Park Dr., and The Oaks Trail is ongoing.
10 Minor Flood Stage. Veterans Park flooding continues. Sections of River Trail Loop and The Oaks Trail are flooding. Veterans Park Dr. may be starting to flood.
9 Action Stage. The Swannanoa River is exceeding its banks and flooding adjacent low-lying areas including parts of Veterans Park.
About This Location Collapse

Latitude: 35.607500° N, Longitude: 82.334444° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame
Gauge Height Flood Stage Uses
NWS stage 0 ft 10 ft  
Vertical Datum Elevation
(gauge height = 0)
Elevation
(gauge height = flood stage)
Elevation information source
NAVD88 Not Available Not Available  
NGVD 29 Not Available Not Available  
MSL Not Available Not Available  
Other Not Available Not Available  
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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: 1-Mar-2019 12:35 AM
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