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Hydrograph River at a Glance Download
Catawba River at Mountain Island Dam Pool (ft)Observed: 97.72 ft at 8:00PM May 11, 2019Observed: 97.65 ft at 9:00PM May 11, 2019Observed: 97.71 ft at 10:00PM May 11, 2019Observed: 97.72 ft at 11:00PM May 11, 2019Observed: 97.74 ft at 12:00AM May 12, 2019Observed: 97.72 ft at 1:00AM May 12, 2019Observed: 97.74 ft at 2:00AM May 12, 2019Observed: 97.79 ft at 3:00AM May 12, 2019Observed: 97.76 ft at 4:00AM May 12, 2019Observed: 97.74 ft at 5:00AM May 12, 2019Observed: 97.77 ft at 6:00AM May 12, 2019Observed: 97.76 ft at 7:00AM May 12, 2019Observed: 97.77 ft at 8:00AM May 12, 2019Observed: 97.77 ft at 9:00AM May 12, 2019Observed: 97.77 ft at 10:00AM May 12, 2019Observed: 97.79 ft at 11:00AM May 12, 2019Observed: 97.79 ft at 12:00PM May 12, 2019Observed: 97.77 ft at 1:00PM May 12, 2019Observed: 97.58 ft at 2:00PM May 12, 2019Observed: 97.52 ft at 3:00PM May 12, 2019Observed: 97.65 ft at 4:00PM May 12, 2019Observed: 97.74 ft at 5:00PM May 12, 2019Observed: 97.85 ft at 6:00PM May 12, 2019Observed: 97.93 ft at 7:00PM May 12, 2019Highest Observation: 98.04 ft at 8:00PM May 12, 2019Observed: 98.02 ft at 9:00PM May 12, 2019Observed: 97.74 ft at 10:00PM May 12, 2019Observed: 97.65 ft at 11:00PM May 12, 2019Observed: 97.69 ft at 12:00AM May 13, 2019Observed: 97.65 ft at 1:00AM May 13, 2019Observed: 97.65 ft at 2:00AM May 13, 2019Observed: 97.66 ft at 3:00AM May 13, 2019Observed: 97.66 ft at 4:00AM May 13, 2019Observed: 97.68 ft at 5:00AM May 13, 2019Observed: 97.66 ft at 6:00AM May 13, 2019Observed: 97.41 ft at 7:00AM May 13, 2019Observed: 97.55 ft at 8:00AM May 13, 2019Observed: 97.6 ft at 9:00AM May 13, 2019Observed: 97.49 ft at 10:00AM May 13, 2019Observed: 97.54 ft at 11:00AM May 13, 2019Observed: 97.61 ft at 12:00PM May 13, 2019Observed: 97.3 ft at 1:00PM May 13, 2019Observed: 97.22 ft at 2:00PM May 13, 2019Observed: 97.14 ft at 3:00PM May 13, 2019Observed: 97.11 ft at 4:00PM May 13, 2019Observed: 97.1 ft at 5:00PM May 13, 2019Observed: 97.22 ft at 6:00PM May 13, 2019Observed: 97.35 ft at 7:00PM May 13, 2019Observed: 97.43 ft at 8:00PM May 13, 2019Observed: 97.44 ft at 9:00PM May 13, 2019Observed: 97.41 ft at 10:00PM May 13, 2019Observed: 97.49 ft at 11:00PM May 13, 2019Observed: 97.41 ft at 12:00AM May 14, 2019Observed: 97.36 ft at 1:00AM May 14, 2019Observed: 97.43 ft at 2:00AM May 14, 2019Observed: 97.39 ft at 3:00AM May 14, 2019Observed: 97.38 ft at 4:00AM May 14, 2019Observed: 97.41 ft at 5:00AM May 14, 2019Observed: 97.38 ft at 6:00AM May 14, 2019Observed: 97.38 ft at 7:00AM May 14, 2019Observed: 97.41 ft at 8:00AM May 14, 2019Observed: 97.41 ft at 9:00AM May 14, 2019Observed: 97.41 ft at 10:00AM May 14, 2019Observed: 97.44 ft at 11:00AM May 14, 2019Observed: 97.14 ft at 12:00PM May 14, 2019Observed: 96.83 ft at 1:00PM May 14, 2019Observed: 96.78 ft at 2:00PM May 14, 2019Observed: 96.72 ft at 3:00PM May 14, 2019Observed: 96.69 ft at 4:00PM May 14, 2019Observed: 96.66 ft at 5:00PM May 14, 2019Observed: 96.61 ft at 6:00PM May 14, 2019Observed: 96.58 ft at 7:00PM May 14, 2019Observed: 96.56 ft at 8:00PM May 14, 2019Observed: 96.51 ft at 9:00PM May 14, 2019Observed: 96.48 ft at 10:00PM May 14, 2019Observed: 96.47 ft at 11:00PM May 14, 2019Observed: 96.84 ft at 12:00AM May 15, 2019Observed: 97.08 ft at 1:00AM May 15, 2019Observed: 97.03 ft at 2:00AM May 15, 2019Observed: 97.02 ft at 3:00AM May 15, 2019Observed: 97.03 ft at 4:00AM May 15, 2019Observed: 97.02 ft at 5:00AM May 15, 2019Observed: 96.84 ft at 6:00AM May 15, 2019Observed: 96.73 ft at 7:00AM May 15, 2019Observed: 96.77 ft at 8:00AM May 15, 2019Observed: 96.84 ft at 9:00AM May 15, 2019Observed: 96.92 ft at 10:00AM May 15, 2019Observed: 97 ft at 11:00AM May 15, 2019Observed: 97.22 ft at 12:00PM May 15, 2019Observed: 97.55 ft at 1:00PM May 15, 2019Observed: 97.47 ft at 2:00PM May 15, 2019Observed: 97.38 ft at 3:00PM May 15, 2019Observed: 97.28 ft at 4:00PM May 15, 2019Observed: 97 ft at 5:00PM May 15, 2019Observed: 97 ft at 6:00PM May 15, 2019Observed: 97.03 ft at 7:00PM May 15, 2019Observed: 97.05 ft at 8:00PM May 15, 2019Observed: 97.11 ft at 9:00PM May 15, 2019Observed: 96.99 ft at 10:00PM May 15, 2019Observed: 96.91 ft at 11:00PM May 15, 2019Observed: 96.83 ft at 12:00AM May 16, 2019Observed: 96.92 ft at 1:00AM May 16, 2019Observed: 96.91 ft at 2:00AM May 16, 2019Observed: 96.83 ft at 3:00AM May 16, 2019Observed: 96.84 ft at 4:00AM May 16, 2019Observed: 96.89 ft at 5:00AM May 16, 2019Observed: 96.64 ft at 6:00AM May 16, 2019Observed: 96.56 ft at 7:00AM May 16, 2019Observed: 96.61 ft at 8:00AM May 16, 2019Observed: 96.66 ft at 9:00AM May 16, 2019Observed: 96.73 ft at 10:00AM May 16, 2019Observed: 96.66 ft at 11:00AM May 16, 2019Observed: 96.51 ft at 12:00PM May 16, 2019Observed: 96.26 ft at 1:00PM May 16, 2019Observed: 96.45 ft at 2:00PM May 16, 2019Observed: 96.59 ft at 3:00PM May 16, 2019Observed: 96.67 ft at 4:00PM May 16, 2019Observed: 96.8 ft at 5:00PM May 16, 2019Observed: 96.83 ft at 6:00PM May 16, 2019Observed: 96.89 ft at 7:00PM May 16, 2019Observed: 96.97 ft at 8:00PM May 16, 2019Observed: 97 ft at 9:00PM May 16, 2019Observed: 96.81 ft at 10:00PM May 16, 2019Observed: 96.7 ft at 11:00PM May 16, 2019Observed: 96.64 ft at 12:00AM May 17, 2019Observed: 96.56 ft at 1:00AM May 17, 2019Observed: 96.62 ft at 2:00AM May 17, 2019Observed: 96.62 ft at 3:00AM May 17, 2019Observed: 96.59 ft at 4:00AM May 17, 2019Observed: 96.59 ft at 5:00AM May 17, 2019Observed: 96.61 ft at 6:00AM May 17, 2019Observed: 96.59 ft at 7:00AM May 17, 2019Observed: 96.61 ft at 8:00AM May 17, 2019Observed: 96.62 ft at 9:00AM May 17, 2019Observed: 96.62 ft at 10:00AM May 17, 2019Observed: 96.62 ft at 11:00AM May 17, 2019Observed: 96.66 ft at 12:00PM May 17, 2019Observed: 96.64 ft at 1:00PM May 17, 2019Observed: 96.64 ft at 2:00PM May 17, 2019Observed: 96.62 ft at 3:00PM May 17, 2019Observed: 96.47 ft at 4:00PM May 17, 2019Observed: 96.51 ft at 5:00PM May 17, 2019Observed: 96.45 ft at 6:00PM May 17, 2019Observed: 96.39 ft at 7:00PM May 17, 2019Observed: 96.37 ft at 8:00PM May 17, 2019Observed: 96.47 ft at 9:00PM May 17, 2019Observed: 96.51 ft at 10:00PM May 17, 2019Observed: 96.45 ft at 11:00PM May 17, 2019Observed: 96.48 ft at 12:00AM May 18, 2019Observed: 96.48 ft at 1:00AM May 18, 2019Observed: 96.44 ft at 2:00AM May 18, 2019Observed: 96.5 ft at 3:00AM May 18, 2019Observed: 96.5 ft at 4:00AM May 18, 2019Observed: 96.45 ft at 5:00AM May 18, 2019Observed: 96.47 ft at 6:00AM May 18, 2019Observed: 96.5 ft at 7:00AM May 18, 2019Observed: 96.47 ft at 8:00AM May 18, 2019Observed: 96.47 ft at 9:00AM May 18, 2019Observed: 96.47 ft at 10:00AM May 18, 2019Observed: 96.47 ft at 11:00AM May 18, 2019Observed: 96.47 ft at 12:00PM May 18, 2019Observed: 96.47 ft at 1:00PM May 18, 2019Observed: 96.47 ft at 2:00PM May 18, 2019Observed: 96.4 ft at 3:00PM May 18, 2019Observed: 96.28 ft at 4:00PM May 18, 2019Observed: 96.26 ft at 5:00PM May 18, 2019Observed: 96.31 ft at 6:00PM May 18, 2019Observed: 96.37 ft at 7:00PM May 18, 2019Observed: 96.45 ft at 8:00PM May 18, 2019Observed: 96.66 ft at 9:00PM May 18, 2019Observed: 96.77 ft at 10:00PM May 18, 2019Observed: 96.64 ft at 11:00PM May 18, 2019Observed: 96.66 ft at 12:00AM May 19, 2019Observed: 96.69 ft at 1:00AM May 19, 2019Observed: 96.66 ft at 2:00AM May 19, 2019Observed: 96.67 ft at 3:00AM May 19, 2019Observed: 96.7 ft at 4:00AM May 19, 2019Observed: 96.66 ft at 5:00AM May 19, 2019Observed: 96.67 ft at 6:00AM May 19, 2019Observed: 96.69 ft at 7:00AM May 19, 2019Observed: 96.67 ft at 9:00AM May 19, 2019Observed: 96.69 ft at 10:00AM May 19, 2019Observed: 96.66 ft at 11:00AM May 19, 2019Observed: 96.69 ft at 12:00PM May 19, 2019Observed: 96.66 ft at 1:00PM May 19, 2019Observed: 96.66 ft at 2:00PM May 19, 2019Observed: 96.67 ft at 3:00PM May 19, 2019Observed: 96.44 ft at 4:00PM May 19, 2019Observed: 96.29 ft at 5:00PM May 19, 2019Observed: 96.33 ft at 6:00PM May 19, 2019Observed: 96.39 ft at 7:00PM May 19, 2019Observed: 96.69 ft at 8:00PM May 19, 2019Observed: 96.72 ft at 9:00PM May 19, 2019Observed: 96.58 ft at 10:00PM May 19, 2019Observed: 96.56 ft at 11:00PM May 19, 2019Observed: 96.62 ft at 12:00AM May 20, 2019Observed: 96.61 ft at 1:00AM May 20, 2019Observed: 96.58 ft at 2:00AM May 20, 2019Observed: 96.59 ft at 3:00AM May 20, 2019Observed: 96.58 ft at 4:00AM May 20, 2019Observed: 96.58 ft at 5:00AM May 20, 2019Observed: 96.58 ft at 6:00AM May 20, 2019Observed: 96.59 ft at 7:00AM May 20, 2019Observed: 96.59 ft at 8:00AM May 20, 2019Observed: 96.61 ft at 9:00AM May 20, 2019Observed: 96.61 ft at 10:00AM May 20, 2019Observed: 96.61 ft at 11:00AM May 20, 2019Observed: 96.62 ft at 12:00PM May 20, 2019Observed: 96.62 ft at 1:00PM May 20, 2019Observed: 96.64 ft at 2:00PM May 20, 2019Observed: 96.64 ft at 3:00PM May 20, 2019Observed: 96.4 ft at 4:00PM May 20, 2019Observed: 96.26 ft at 5:00PM May 20, 2019Observed: 96.31 ft at 6:00PM May 20, 2019Observed: 96.56 ft at 7:00PM May 20, 2019Observed: 96.66 ft at 8:00PM May 20, 2019Observed: 96.53 ft at 9:00PM May 20, 2019Observed: 96.51 ft at 10:00PM May 20, 2019Observed: 96.56 ft at 11:00PM May 20, 2019Observed: 96.53 ft at 12:00AM May 21, 2019Observed: 96.53 ft at 1:00AM May 21, 2019Observed: 96.53 ft at 2:00AM May 21, 2019Observed: 96.53 ft at 3:00AM May 21, 2019Observed: 96.51 ft at 4:00AM May 21, 2019MOUN7(plotting HPIRZ) Graph Created (6:05AM May 21, 2019)ObservedLatest observed value: 96.51 ft at 4:00 AM EDT 21-May-2019. Flood Stage is 102 ft
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About this graph
Tabular Data (UTC)
Tabular Data (EDT)
XML Data
RSS Files
Datum: Not Available
Metadata
NOTE: Gauge reading affected by reservoir operations.

NOTE: Forecasts are not available for the Catawba River at Mountain Island Dam. Only observed stages are available for this point.

Return to Area Map
Upstream Gauge - at Cowans Ford Dam Upstream Gauge Downstream Gauge Downstream Gauge - at Lake Wylie
Flood Categories (in feet)
Major Flood Stage: 110
Moderate Flood Stage: 105
Flood Stage: 102
Action Stage: 100
Low Stage (in feet): 0

Historic Crests
(1) 109.60 ft on 08/30/1940
(2) 105.05 ft on 09/10/2004
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 102.48 ft on 07/07/2013
(2) 104.02 ft on 05/07/2013
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
(1) 93.00 ft on 01/09/1993
(2) 94.26 ft on 11/11/2007
Show More Low Water Records
Zoom Level:16
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
121 ALL GATES OPEN AT THIS ELEVATION.
110 MAJOR FLOODING BEGINS. HOMES AND BRIDGES DOWNSTREAM, AND IN VICINITY OF THE DAM, COULD BE AFFECTED.
104 MODERATE FLOODING OF HOMES ALONG SHORELINE ON RIVERSIDE DRIVE AND LAKE DRIVE BEGINS.
103 HOMES IN NIVENS COVE AREA (GASTON COUNTY SIDE) OF MT ISLAND LAKE JUST BELOW HIGHWAY 16 BRIDGE AND AT THE END OF FOX RIDGE ROAD IN THE STONEWATER BAY AREA WILL BE FLOODED.
102 AT THIS LEVEL MOST DOCKS AND YARDS WILL BE FLOODED. ROADS TO SEVERAL HOMES WILL BE CUT OFF OR CLOSED. LAKE DRIVE AND RIVERSIDE DRIVE JUST SOUTH OF DAM ON MECKLENBURG SIDE WILL BEGIN TO FLOOD. VOLUNTARY EVACUATIONS WILL BEGIN.
101 FLOODING OF DOCKS AND YARDS WILL BEGIN. WATER WILL APPRAOCH ROADS SUCH AS LAKE AND RIVERSIDE DRIVES. FLS NEEDED.
100 FULL POOL. FLOODING OF DOCKS ALONG SHORELINE AND DOWNSTREAM OF THE DAM WILL BEGIN. FLS @ 101.0
Photos
(1) view of mountain island dam
About This Location Collapse

Latitude: 35.344277° N, Longitude: 80.986673° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame		 Gauge Height Flood Stage Uses
NWS stage 0 ft 102 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 0 ft 102 ft  
Additional Information Collapse
FOR MORE INFORMATION ABOUT THIS LAKE GO TO http://www.duke-energy.com/lakes/levels.asp
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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