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Hydrograph River at a Glance Download
Swannanoa River at Black Mountain Park Stage (ft)Observed: 4.57 ft at 12:40PM Aug 11, 2019Observed: 4.47 ft at 6:40PM Aug 11, 2019Observed: 4.55 ft at 6:35AM Aug 12, 2019Observed: 4.55 ft at 12:30PM Aug 12, 2019Observed: 4.63 ft at 12:25AM Aug 13, 2019Observed: 4.61 ft at 12:15AM Aug 14, 2019Observed: 4.67 ft at 6:10AM Aug 14, 2019Observed: 4.57 ft at 12:00AM Aug 15, 2019Observed: 4.53 ft at 6:00AM Aug 15, 2019Observed: 4.57 ft at 11:50PM Aug 15, 2019Observed: 4.51 ft at 5:35AM Aug 17, 2019Observed: 4.53 ft at 11:30AM Aug 17, 2019Observed: 4.51 ft at 11:20AM Aug 18, 2019Observed: 5.37 ft at 5:35PM Aug 18, 2019Highest Observation: 5.63 ft at 5:50PM Aug 18, 2019Observed: 5.15 ft at 6:30PM Aug 18, 2019BMPN7(plotting HGIRR) Graph Created (5:50AM Aug 19, 2019)ObservedLatest observed value: 5.15 ft at 6:30 PM EDT 18-Aug-2019. Flood Stage is 10 ft
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Tabular Data (UTC)
Tabular Data (EDT)
XML Data
RSS Files
Datum: Not Available
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
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(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
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(P): Preliminary values subject to further review.

Low Water Records
Currently none available.

For more information on your flood risk go to

Zoom Level:15
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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
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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.
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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)
(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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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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