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Hydrograph River at a Glance Download
Swannanoa River at Black Mountain Park Stage (ft)Highest Observation: 5.53 ft at 9:15PM Apr 13, 2024Observed: 5.51 ft at 3:10AM Apr 14, 2024Observed: 5.49 ft at 9:10AM Apr 14, 2024Highest Observation: 5.53 ft at 3:05PM Apr 14, 2024Observed: 5.49 ft at 9:00PM Apr 14, 2024Observed: 5.49 ft at 8:55AM Apr 15, 2024Observed: 5.49 ft at 2:55PM Apr 15, 2024Observed: 5.47 ft at 8:50PM Apr 15, 2024Observed: 5.45 ft at 8:45AM Apr 16, 2024Observed: 5.43 ft at 8:30AM Apr 17, 2024Observed: 5.43 ft at 2:30PM Apr 17, 2024Observed: 5.41 ft at 8:20AM Apr 18, 2024Observed: 5.43 ft at 2:15PM Apr 18, 2024Observed: 5.43 ft at 8:15PM Apr 18, 2024Observed: 5.39 ft at 2:10AM Apr 19, 2024Observed: 5.39 ft at 8:05AM Apr 19, 2024Observed: 5.43 ft at 2:05PM Apr 19, 2024Observed: 5.41 ft at 8:00PM Apr 19, 2024Observed: 5.39 ft at 1:55AM Apr 20, 2024Observed: 5.39 ft at 7:55AM Apr 20, 2024Observed: 5.39 ft at 1:50PM Apr 20, 2024Observed: 5.39 ft at 7:50PM Apr 20, 2024Observed: 5.37 ft at 1:45AM Apr 21, 2024Observed: 5.49 ft at 1:40PM Apr 21, 2024Observed: 5.41 ft at 7:35PM Apr 21, 2024Observed: 5.37 ft at 7:30AM Apr 22, 2024Observed: 5.37 ft at 1:25PM Apr 22, 2024Observed: 5.37 ft at 7:20PM Apr 22, 2024Observed: 5.35 ft at 1:20AM Apr 23, 2024BMPN7(plotting HGIRR) Graph Created (3:36AM Apr 23, 2024)ObservedLatest observed value: 5.35 ft at 1:20 AM EDT 23-Apr-2024. 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
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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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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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