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Hydrograph River at a Glance Download
Green River (KY) near Mammoth Cave Stage (ft)Observed: 10.56 ft at 10:00PM Oct 24, 2021Observed: 10.56 ft at 10:15PM Oct 24, 2021Observed: 10.55 ft at 10:30PM Oct 24, 2021Observed: 10.55 ft at 10:45PM Oct 24, 2021Observed: 10.55 ft at 11:00PM Oct 24, 2021Observed: 10.56 ft at 11:15PM Oct 24, 2021Observed: 10.55 ft at 11:30PM Oct 24, 2021Observed: 10.55 ft at 11:45PM Oct 24, 2021Observed: 10.55 ft at 12:00AM Oct 25, 2021Observed: 10.55 ft at 12:15AM Oct 25, 2021Observed: 10.55 ft at 12:30AM Oct 25, 2021Observed: 10.55 ft at 12:45AM Oct 25, 2021Observed: 10.55 ft at 1:00AM Oct 25, 2021Observed: 10.55 ft at 1:15AM Oct 25, 2021Observed: 10.55 ft at 1:30AM Oct 25, 2021Observed: 10.55 ft at 1:45AM Oct 25, 2021Observed: 10.55 ft at 2:00AM Oct 25, 2021Observed: 10.55 ft at 2:15AM Oct 25, 2021Observed: 10.55 ft at 2:30AM Oct 25, 2021Observed: 10.54 ft at 2:45AM Oct 25, 2021Observed: 10.55 ft at 3:00AM Oct 25, 2021Observed: 10.54 ft at 3:15AM Oct 25, 2021Observed: 10.55 ft at 3:30AM Oct 25, 2021Observed: 10.54 ft at 3:45AM Oct 25, 2021Observed: 10.56 ft at 4:00AM Oct 25, 2021Observed: 10.55 ft at 4:15AM Oct 25, 2021Observed: 10.56 ft at 4:30AM Oct 25, 2021Observed: 10.57 ft at 4:45AM Oct 25, 2021Observed: 10.57 ft at 5:00AM Oct 25, 2021Observed: 10.57 ft at 5:15AM Oct 25, 2021Observed: 10.58 ft at 5:30AM Oct 25, 2021Observed: 10.58 ft at 5:45AM Oct 25, 2021Observed: 10.58 ft at 6:00AM Oct 25, 2021Observed: 10.59 ft at 6:15AM Oct 25, 2021Observed: 10.59 ft at 6:30AM Oct 25, 2021Observed: 10.59 ft at 6:45AM Oct 25, 2021Observed: 10.6 ft at 7:00AM Oct 25, 2021Observed: 10.6 ft at 7:15AM Oct 25, 2021Observed: 10.6 ft at 7:30AM Oct 25, 2021Observed: 10.59 ft at 7:45AM Oct 25, 2021Observed: 10.6 ft at 8:00AM Oct 25, 2021Observed: 10.59 ft at 8:15AM Oct 25, 2021Observed: 10.59 ft at 8:30AM Oct 25, 2021Observed: 10.59 ft at 8:45AM Oct 25, 2021Observed: 10.6 ft at 9:00AM Oct 25, 2021Observed: 10.59 ft at 9:15AM Oct 25, 2021Observed: 10.59 ft at 9:30AM Oct 25, 2021Observed: 10.59 ft at 9:45AM Oct 25, 2021Observed: 10.59 ft at 10:00AM Oct 25, 2021Observed: 10.6 ft at 10:15AM Oct 25, 2021Observed: 10.59 ft at 10:30AM Oct 25, 2021Observed: 10.59 ft at 10:45AM Oct 25, 2021Observed: 10.59 ft at 11:00AM Oct 25, 2021Observed: 10.6 ft at 11:15AM Oct 25, 2021Observed: 10.6 ft at 11:30AM Oct 25, 2021Observed: 10.59 ft at 11:45AM Oct 25, 2021Observed: 10.6 ft at 12:00PM Oct 25, 2021Observed: 10.6 ft at 12:15PM Oct 25, 2021Observed: 10.6 ft at 12:30PM Oct 25, 2021Observed: 10.61 ft at 12:45PM Oct 25, 2021Observed: 10.6 ft at 1:00PM Oct 25, 2021Observed: 10.6 ft at 1:15PM Oct 25, 2021Observed: 10.6 ft at 1:30PM Oct 25, 2021Observed: 10.6 ft at 1:45PM Oct 25, 2021Observed: 10.61 ft at 2:00PM Oct 25, 2021Observed: 10.59 ft at 2:15PM Oct 25, 2021Observed: 10.6 ft at 2:30PM Oct 25, 2021Observed: 10.6 ft at 2:45PM Oct 25, 2021Observed: 10.6 ft at 3:00PM Oct 25, 2021Observed: 10.59 ft at 3:15PM Oct 25, 2021Observed: 10.59 ft at 3:30PM Oct 25, 2021Observed: 10.6 ft at 3:45PM Oct 25, 2021Observed: 10.59 ft at 4:00PM Oct 25, 2021Observed: 10.61 ft at 4:15PM Oct 25, 2021Observed: 10.59 ft at 4:30PM Oct 25, 2021Observed: 10.6 ft at 4:45PM Oct 25, 2021Observed: 10.6 ft at 5:00PM Oct 25, 2021Observed: 10.59 ft at 5:15PM Oct 25, 2021Observed: 10.6 ft at 5:30PM Oct 25, 2021Observed: 10.6 ft at 5:45PM Oct 25, 2021Observed: 10.6 ft at 6:00PM Oct 25, 2021Observed: 10.6 ft at 6:15PM Oct 25, 2021Observed: 10.6 ft at 6:30PM Oct 25, 2021Observed: 10.6 ft at 6:45PM Oct 25, 2021Observed: 10.6 ft at 7:00PM Oct 25, 2021Observed: 10.61 ft at 7:15PM Oct 25, 2021Observed: 10.61 ft at 7:30PM Oct 25, 2021Observed: 10.61 ft at 7:45PM Oct 25, 2021Observed: 10.61 ft at 8:00PM Oct 25, 2021Observed: 10.61 ft at 8:15PM Oct 25, 2021Observed: 10.61 ft at 8:30PM Oct 25, 2021Observed: 10.61 ft at 8:45PM Oct 25, 2021Observed: 10.61 ft at 9:00PM Oct 25, 2021Observed: 10.61 ft at 9:15PM Oct 25, 2021Observed: 10.62 ft at 9:30PM Oct 25, 2021Observed: 10.61 ft at 9:45PM Oct 25, 2021Observed: 10.62 ft at 10:00PM Oct 25, 2021Observed: 10.62 ft at 10:15PM Oct 25, 2021Observed: 10.61 ft at 10:30PM Oct 25, 2021Observed: 10.62 ft at 10:45PM Oct 25, 2021Observed: 10.62 ft at 11:00PM Oct 25, 2021Observed: 10.62 ft at 11:15PM Oct 25, 2021Observed: 10.62 ft at 11:30PM Oct 25, 2021Observed: 10.63 ft at 11:45PM Oct 25, 2021Observed: 10.62 ft at 12:00AM Oct 26, 2021Observed: 10.62 ft at 12:15AM Oct 26, 2021Observed: 10.62 ft at 12:30AM Oct 26, 2021Observed: 10.62 ft at 12:45AM Oct 26, 2021Observed: 10.63 ft at 1:00AM Oct 26, 2021Observed: 10.62 ft at 1:15AM Oct 26, 2021Observed: 10.62 ft at 1:30AM Oct 26, 2021Observed: 10.62 ft at 1:45AM Oct 26, 2021Observed: 10.63 ft at 2:00AM Oct 26, 2021Observed: 10.63 ft at 2:15AM Oct 26, 2021Observed: 10.63 ft at 2:30AM Oct 26, 2021Observed: 10.62 ft at 2:45AM Oct 26, 2021Observed: 10.63 ft at 3:00AM Oct 26, 2021Observed: 10.63 ft at 4:15AM Oct 26, 2021Observed: 10.62 ft at 4:30AM Oct 26, 2021Observed: 10.63 ft at 4:45AM Oct 26, 2021Observed: 10.62 ft at 5:00AM Oct 26, 2021Observed: 10.62 ft at 7:45AM Oct 26, 2021Observed: 10.62 ft at 8:00AM Oct 26, 2021Observed: 10.63 ft at 8:15AM Oct 26, 2021Observed: 10.63 ft at 8:30AM Oct 26, 2021Observed: 10.62 ft at 8:45AM Oct 26, 2021Observed: 10.63 ft at 9:00AM Oct 26, 2021Observed: 10.62 ft at 9:15AM Oct 26, 2021Observed: 10.63 ft at 9:30AM Oct 26, 2021Observed: 10.63 ft at 9:45AM Oct 26, 2021Observed: 10.63 ft at 10:00AM Oct 26, 2021Observed: 10.63 ft at 10:15AM Oct 26, 2021Observed: 10.62 ft at 10:30AM Oct 26, 2021Observed: 10.63 ft at 10:45AM Oct 26, 2021Observed: 10.63 ft at 11:00AM Oct 26, 2021Observed: 10.63 ft at 11:15AM Oct 26, 2021Observed: 10.64 ft at 11:30AM Oct 26, 2021Observed: 10.62 ft at 11:45AM Oct 26, 2021Observed: 10.63 ft at 12:00PM Oct 26, 2021Observed: 10.62 ft at 12:15PM Oct 26, 2021Observed: 10.63 ft at 12:30PM Oct 26, 2021Observed: 10.63 ft at 12:45PM Oct 26, 2021Observed: 10.61 ft at 1:00PM Oct 26, 2021Observed: 10.63 ft at 1:15PM Oct 26, 2021Observed: 10.64 ft at 1:30PM Oct 26, 2021Observed: 10.63 ft at 1:45PM Oct 26, 2021Observed: 10.63 ft at 2:00PM Oct 26, 2021Observed: 10.63 ft at 2:15PM Oct 26, 2021Observed: 10.64 ft at 2:30PM Oct 26, 2021Observed: 10.64 ft at 2:45PM Oct 26, 2021Observed: 10.63 ft at 3:00PM Oct 26, 2021Observed: 10.63 ft at 3:15PM Oct 26, 2021Observed: 10.64 ft at 3:30PM Oct 26, 2021Observed: 10.64 ft at 3:45PM Oct 26, 2021Observed: 10.64 ft at 4:00PM Oct 26, 2021Observed: 10.64 ft at 5:15PM Oct 26, 2021Observed: 10.63 ft at 5:30PM Oct 26, 2021Observed: 10.64 ft at 5:45PM Oct 26, 2021Observed: 10.64 ft at 6:00PM Oct 26, 2021Observed: 10.64 ft at 6:15PM Oct 26, 2021Observed: 10.64 ft at 6:30PM Oct 26, 2021Observed: 10.64 ft at 6:45PM Oct 26, 2021Observed: 10.65 ft at 7:00PM Oct 26, 2021Observed: 10.64 ft at 7:15PM Oct 26, 2021Observed: 10.64 ft at 7:30PM Oct 26, 2021Observed: 10.65 ft at 7:45PM Oct 26, 2021Observed: 10.64 ft at 8:00PM Oct 26, 2021Observed: 10.64 ft at 8:15PM Oct 26, 2021Observed: 10.64 ft at 8:30PM Oct 26, 2021Observed: 10.65 ft at 8:45PM Oct 26, 2021Observed: 10.65 ft at 9:00PM Oct 26, 2021Observed: 10.65 ft at 9:15PM Oct 26, 2021Observed: 10.65 ft at 9:30PM Oct 26, 2021Observed: 10.65 ft at 9:45PM Oct 26, 2021Observed: 10.65 ft at 10:00PM Oct 26, 2021Observed: 10.65 ft at 10:15PM Oct 26, 2021Observed: 10.65 ft at 10:30PM Oct 26, 2021Observed: 10.65 ft at 10:45PM Oct 26, 2021Observed: 10.65 ft at 11:00PM Oct 26, 2021Observed: 10.65 ft at 11:15PM Oct 26, 2021Observed: 10.65 ft at 11:30PM Oct 26, 2021Observed: 10.65 ft at 11:45PM Oct 26, 2021Observed: 10.65 ft at 12:00AM Oct 27, 2021Observed: 10.66 ft at 1:15AM Oct 27, 2021Observed: 10.65 ft at 1:30AM Oct 27, 2021Observed: 10.66 ft at 1:45AM Oct 27, 2021Observed: 10.66 ft at 2:00AM Oct 27, 2021Observed: 10.66 ft at 2:15AM Oct 27, 2021Observed: 10.66 ft at 2:30AM Oct 27, 2021Observed: 10.66 ft at 2:45AM Oct 27, 2021Observed: 10.67 ft at 3:00AM Oct 27, 2021Observed: 10.67 ft at 3:15AM Oct 27, 2021Observed: 10.67 ft at 3:30AM Oct 27, 2021Observed: 10.67 ft at 3:45AM Oct 27, 2021Observed: 10.67 ft at 4:00AM Oct 27, 2021Observed: 10.67 ft at 5:15AM Oct 27, 2021Observed: 10.67 ft at 5:30AM Oct 27, 2021Observed: 10.68 ft at 5:45AM Oct 27, 2021Observed: 10.68 ft at 6:00AM Oct 27, 2021Observed: 10.6 ft at 7:15AM Oct 27, 2021Observed: 10.68 ft at 7:30AM Oct 27, 2021Observed: 10.68 ft at 7:45AM Oct 27, 2021Observed: 10.68 ft at 8:00AM Oct 27, 2021Observed: 10.68 ft at 8:15AM Oct 27, 2021Observed: 10.7 ft at 8:30AM Oct 27, 2021Observed: 10.7 ft at 8:45AM Oct 27, 2021Observed: 10.69 ft at 9:00AM Oct 27, 2021Observed: 10.69 ft at 9:15AM Oct 27, 2021Observed: 10.7 ft at 9:30AM Oct 27, 2021Observed: 10.7 ft at 9:45AM Oct 27, 2021Observed: 10.71 ft at 10:00AM Oct 27, 2021Observed: 10.7 ft at 10:15AM Oct 27, 2021Observed: 10.7 ft at 10:30AM Oct 27, 2021Observed: 10.7 ft at 10:45AM Oct 27, 2021Observed: 10.71 ft at 11:00AM Oct 27, 2021Observed: 10.71 ft at 11:15AM Oct 27, 2021Observed: 10.7 ft at 11:30AM Oct 27, 2021Observed: 10.71 ft at 11:45AM Oct 27, 2021Observed: 10.71 ft at 12:00PM Oct 27, 2021Observed: 10.71 ft at 12:15PM Oct 27, 2021Observed: 10.71 ft at 12:30PM Oct 27, 2021Observed: 10.72 ft at 12:45PM Oct 27, 2021Observed: 10.71 ft at 1:00PM Oct 27, 2021Observed: 10.71 ft at 1:15PM Oct 27, 2021Observed: 10.72 ft at 1:30PM Oct 27, 2021Observed: 10.72 ft at 1:45PM Oct 27, 2021Observed: 10.72 ft at 2:00PM Oct 27, 2021Observed: 10.73 ft at 2:15PM Oct 27, 2021Observed: 10.74 ft at 2:30PM Oct 27, 2021Observed: 10.75 ft at 2:45PM Oct 27, 2021Observed: 10.74 ft at 3:00PM Oct 27, 2021Observed: 10.75 ft at 3:15PM Oct 27, 2021Observed: 10.75 ft at 3:30PM Oct 27, 2021Observed: 10.75 ft at 3:45PM Oct 27, 2021Observed: 10.75 ft at 4:00PM Oct 27, 2021Observed: 10.76 ft at 4:15PM Oct 27, 2021Observed: 10.77 ft at 4:30PM Oct 27, 2021Observed: 10.76 ft at 4:45PM Oct 27, 2021Observed: 10.76 ft at 5:00PM Oct 27, 2021Observed: 10.78 ft at 5:15PM Oct 27, 2021Observed: 10.78 ft at 5:30PM Oct 27, 2021Observed: 10.79 ft at 5:45PM Oct 27, 2021Observed: 10.79 ft at 6:00PM Oct 27, 2021Observed: 10.8 ft at 6:15PM Oct 27, 2021Observed: 10.8 ft at 6:30PM Oct 27, 2021Observed: 10.81 ft at 6:45PM Oct 27, 2021Observed: 10.81 ft at 7:00PM Oct 27, 2021Observed: 10.82 ft at 7:15PM Oct 27, 2021Observed: 10.82 ft at 7:30PM Oct 27, 2021Observed: 10.82 ft at 7:45PM Oct 27, 2021Observed: 10.83 ft at 8:00PM Oct 27, 2021Highest Observation: 10.84 ft at 8:45PM Oct 27, 2021Highest Observation: 10.84 ft at 9:00PM Oct 27, 2021USGS--Water Resources of the United StatesMMCK2(plotting HGIRG) Graph Created (9:54PM Oct 27, 2021)ObservedLatest observed value: 10.84 ft at 9:00 PM CDT 27-Oct-2021.
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About this graph
Tabular Data (UTC)
Tabular Data (CDT)
XML Data
RSS Files
Datum: NGVD29
Metadata
NOTE: River forecasts for this location take into account past precipitation and the precipitation amounts expected approximately 48 hours into the future from the forecast issuance time.

NOTE: Graphical forecasts are not available for the Green River (KY) near Mammoth Cave. During times of high water, forecast crest information can be found in the text products.

Return to Area Map
Upstream Gauge - at Munfordville Upstream Gauge Downstream Gauge Downstream Gauge - near Brownsville
Flood Categories (in feet)
Major Flood Stage: 0
Moderate Flood Stage: 0
Flood Stage: 0
Action Stage: 0
Low Stage (in feet): 0

Historic Crests
(1) 50.94 ft on 03/03/2021 (P)
(2) 48.00 ft on 01/24/1937
(3) 46.50 ft on 01/01/1913
(4) 42.60 ft on 01/01/1935
(5) 39.00 ft on 02/18/1949
(6) 38.00 ft on 01/09/1950
(7) 36.10 ft on 04/16/1948

(P): Preliminary values subject to further review.

Recent Crests
(1) 50.94 ft on 03/03/2021 (P)
(2) 38.00 ft on 01/09/1950
(3) 39.00 ft on 02/18/1949
(4) 36.10 ft on 04/16/1948
(5) 48.00 ft on 01/24/1937
(6) 42.60 ft on 01/01/1935
(7) 46.50 ft on 01/01/1913

(P): Preliminary values subject to further review.

Low Water Records
Currently none available.
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.
About This Location Collapse

Latitude: 37.180000° N, Longitude: 86.112500° W, Horizontal Datum: NAD27

River Stage
Reference Frame		 Gauge Height Flood Stage Uses
NWS stage 0 ft Not Available 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 29 420.52 Not Available Older USGS topographic maps, NGVD29 benchmarks
MSL Not Available Not Available Older USGS topographic maps, MSL benchmarks
Other Not Available Not Available  

Current/Historical Observations:
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
Louisville Weather Forecast Office
6201 Theiler Lane
Louisville, KY 40229
(502) 969-8842
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