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Hydrograph River at a Glance Download
Tugalo River at YONAH DAM Pool (ft)Observed: 743.44 ft at 7:00AM Dec 04, 2019Observed: 743.51 ft at 7:00AM Dec 05, 2019Observed: 743.52 ft at 7:00AM Dec 06, 2019Observed: 743.47 ft at 7:00AM Dec 07, 2019Observed: 743.33 ft at 7:00AM Dec 08, 2019Observed: 743.51 ft at 7:00AM Dec 09, 2019Observed: 743.52 ft at 7:00AM Dec 10, 2019Observed: 743.51 ft at 7:00AM Dec 11, 2019Highest Observation: 743.53 ft at 7:00AM Dec 12, 2019YNHG1(plotting HPIRZ) Graph Created (7:50PM Dec 12, 2019)ObservedLatest observed value: 743.53 ft at 7:00 AM EST 12-Dec-2019. Flood Stage is 748 ft
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Tabular Data (UTC)
Tabular Data (EST)
XML Data
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Datum: Not Available
Metadata
NOTE: Forecasts are not available for the Tugalo River at YONAH DAM. Only observed stages are available for this point.
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Upstream Gauge - at TUGALO DAM Upstream Gauge Downstream Gauge Downstream Gauge - at Hartwell Dam
Flood Categories (in feet)
Major Flood Stage: 758
Moderate Flood Stage: 754
Flood Stage: 748
Action Stage: 744.2
Low Stage (in feet): 0

Historic Crests
(1) 748.70 ft on 01/01/1900
(2) 746.47 ft on 05/30/2018
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(P): Preliminary values subject to further review.

Recent Crests
(1) 746.47 ft on 05/30/2018
(2) 744.84 ft on 12/30/2015
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(P): Preliminary values subject to further review.

Low Water Records
Currently none available.
Zoom Level:16
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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.
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If you notice any errors in the below information, please contact our Webmaster
745 HIGH WATER LEVELS HAVE CAUSE FLOODING ALONG COOPER ROAD AND RIVER ROAD IN OCONEE COUNTY AND FLOODED WALKER CREEK BOAT RAMP IN STEPHENS COUNTY.
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Latitude: 34.679722° N, Longitude: 83.330000° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame
Gauge Height Flood Stage Uses
NWS stage 0 ft 748 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 29 654.20 Not Available Older USGS topographic maps, NGVD29 benchmarks
MSL Not Available Not Available Older USGS topographic maps, MSL benchmarks
Other Not Available Not Available  
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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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