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Hydrograph River at a Glance Download
Green River (KY) at Calhoun Lock and Dam Pool (ft)Flow (kcfs)Observed: 10.67 ft at 6:30PM Apr 29, 2024Observed: 10.68 ft at 6:45PM Apr 29, 2024Observed: 10.68 ft at 7:00PM Apr 29, 2024Observed: 10.68 ft at 7:15PM Apr 29, 2024Observed: 10.74 ft at 7:30PM Apr 29, 2024Observed: 10.72 ft at 7:45PM Apr 29, 2024Observed: 10.72 ft at 8:00PM Apr 29, 2024Observed: 10.76 ft at 8:15PM Apr 29, 2024Observed: 10.75 ft at 8:45PM Apr 29, 2024Observed: 10.74 ft at 9:00PM Apr 29, 2024Observed: 10.76 ft at 9:15PM Apr 29, 2024Observed: 10.79 ft at 9:30PM Apr 29, 2024Observed: 10.8 ft at 9:45PM Apr 29, 2024Observed: 10.81 ft at 10:00PM Apr 29, 2024Observed: 10.83 ft at 10:15PM Apr 29, 2024Observed: 10.85 ft at 10:30PM Apr 29, 2024Observed: 10.86 ft at 10:45PM Apr 29, 2024Observed: 10.86 ft at 11:00PM Apr 29, 2024Observed: 10.88 ft at 11:15PM Apr 29, 2024Observed: 10.89 ft at 11:30PM Apr 29, 2024Observed: 10.9 ft at 11:45PM Apr 29, 2024Observed: 10.91 ft at 12:00AM Apr 30, 2024Observed: 10.91 ft at 12:15AM Apr 30, 2024Observed: 10.93 ft at 12:30AM Apr 30, 2024Observed: 10.95 ft at 12:45AM Apr 30, 2024Observed: 10.95 ft at 1:00AM Apr 30, 2024Observed: 10.96 ft at 1:15AM Apr 30, 2024Observed: 10.97 ft at 1:30AM Apr 30, 2024Observed: 10.98 ft at 1:45AM Apr 30, 2024Observed: 10.99 ft at 2:00AM Apr 30, 2024Observed: 10.99 ft at 2:15AM Apr 30, 2024Observed: 11.01 ft at 2:30AM Apr 30, 2024Observed: 11.02 ft at 2:45AM Apr 30, 2024Observed: 11.03 ft at 3:00AM Apr 30, 2024Observed: 11.05 ft at 3:15AM Apr 30, 2024Observed: 11.06 ft at 3:30AM Apr 30, 2024Observed: 11.07 ft at 3:45AM Apr 30, 2024Observed: 11.08 ft at 4:00AM Apr 30, 2024Observed: 11.09 ft at 4:15AM Apr 30, 2024Observed: 11.1 ft at 4:30AM Apr 30, 2024Observed: 11.12 ft at 4:45AM Apr 30, 2024Observed: 11.13 ft at 5:00AM Apr 30, 2024Observed: 11.15 ft at 5:15AM Apr 30, 2024Observed: 11.15 ft at 5:30AM Apr 30, 2024Observed: 11.17 ft at 5:45AM Apr 30, 2024Observed: 11.18 ft at 6:00AM Apr 30, 2024Observed: 11.19 ft at 6:15AM Apr 30, 2024Observed: 11.2 ft at 6:30AM Apr 30, 2024Observed: 11.22 ft at 6:45AM Apr 30, 2024Observed: 11.23 ft at 7:00AM Apr 30, 2024Observed: 11.23 ft at 7:15AM Apr 30, 2024Observed: 11.24 ft at 7:30AM Apr 30, 2024Observed: 11.25 ft at 7:45AM Apr 30, 2024Observed: 11.25 ft at 8:00AM Apr 30, 2024Observed: 11.26 ft at 8:15AM Apr 30, 2024Observed: 11.26 ft at 8:30AM Apr 30, 2024Observed: 11.28 ft at 8:45AM Apr 30, 2024Observed: 11.28 ft at 9:00AM Apr 30, 2024Observed: 11.29 ft at 9:15AM Apr 30, 2024Observed: 11.3 ft at 9:30AM Apr 30, 2024Observed: 11.3 ft at 9:45AM Apr 30, 2024Observed: 11.31 ft at 10:00AM Apr 30, 2024Observed: 11.32 ft at 10:15AM Apr 30, 2024Observed: 11.32 ft at 10:30AM Apr 30, 2024Observed: 11.33 ft at 10:45AM Apr 30, 2024Observed: 11.34 ft at 11:00AM Apr 30, 2024Observed: 11.34 ft at 11:15AM Apr 30, 2024Observed: 11.35 ft at 11:30AM Apr 30, 2024Observed: 11.35 ft at 11:45AM Apr 30, 2024Observed: 11.36 ft at 12:00PM Apr 30, 2024Observed: 11.37 ft at 12:15PM Apr 30, 2024Observed: 11.38 ft at 12:30PM Apr 30, 2024Observed: 11.38 ft at 12:45PM Apr 30, 2024Observed: 11.38 ft at 1:00PM Apr 30, 2024Observed: 11.41 ft at 2:15PM Apr 30, 2024Observed: 11.42 ft at 2:30PM Apr 30, 2024Observed: 11.42 ft at 2:45PM Apr 30, 2024Observed: 11.43 ft at 3:00PM Apr 30, 2024Observed: 11.43 ft at 3:15PM Apr 30, 2024Observed: 11.44 ft at 3:30PM Apr 30, 2024Observed: 11.44 ft at 3:45PM Apr 30, 2024Observed: 11.44 ft at 4:00PM Apr 30, 2024Observed: 11.45 ft at 4:15PM Apr 30, 2024Observed: 11.46 ft at 4:30PM Apr 30, 2024Observed: 11.46 ft at 4:45PM Apr 30, 2024Observed: 11.47 ft at 5:00PM Apr 30, 2024Observed: 11.47 ft at 5:15PM Apr 30, 2024Observed: 11.48 ft at 5:30PM Apr 30, 2024Observed: 11.49 ft at 5:45PM Apr 30, 2024Observed: 11.49 ft at 6:00PM Apr 30, 2024Observed: 11.5 ft at 6:15PM Apr 30, 2024Observed: 11.5 ft at 6:30PM Apr 30, 2024Observed: 11.51 ft at 6:45PM Apr 30, 2024Observed: 11.51 ft at 7:00PM Apr 30, 2024Observed: 11.52 ft at 7:15PM Apr 30, 2024Observed: 11.53 ft at 7:30PM Apr 30, 2024Observed: 11.53 ft at 7:45PM Apr 30, 2024Observed: 11.54 ft at 8:00PM Apr 30, 2024Observed: 11.54 ft at 8:15PM Apr 30, 2024Observed: 11.55 ft at 8:30PM Apr 30, 2024Observed: 11.56 ft at 8:45PM Apr 30, 2024Observed: 11.56 ft at 9:00PM Apr 30, 2024Observed: 11.57 ft at 9:15PM Apr 30, 2024Observed: 11.57 ft at 9:30PM Apr 30, 2024Observed: 11.57 ft at 9:45PM Apr 30, 2024Observed: 11.57 ft at 10:00PM Apr 30, 2024Observed: 11.58 ft at 10:15PM Apr 30, 2024Observed: 11.58 ft at 10:30PM Apr 30, 2024Observed: 11.59 ft at 10:45PM Apr 30, 2024Observed: 11.59 ft at 11:00PM Apr 30, 2024Observed: 11.6 ft at 11:15PM Apr 30, 2024Observed: 11.88 ft at 11:30PM Apr 30, 2024Observed: 11.61 ft at 11:45PM Apr 30, 2024Observed: 11.62 ft at 12:00AM May 01, 2024Observed: 11.62 ft at 12:15AM May 01, 2024Observed: 11.63 ft at 12:30AM May 01, 2024Observed: 11.64 ft at 12:45AM May 01, 2024Observed: 11.64 ft at 1:00AM May 01, 2024Observed: 11.65 ft at 1:15AM May 01, 2024Observed: 11.65 ft at 1:30AM May 01, 2024Observed: 11.66 ft at 1:45AM May 01, 2024Observed: 11.66 ft at 2:00AM May 01, 2024Observed: 11.67 ft at 2:15AM May 01, 2024Observed: 11.68 ft at 2:30AM May 01, 2024Observed: 11.69 ft at 2:45AM May 01, 2024Observed: 11.69 ft at 3:00AM May 01, 2024Observed: 11.7 ft at 3:15AM May 01, 2024Observed: 11.7 ft at 3:30AM May 01, 2024Observed: 11.7 ft at 3:45AM May 01, 2024Observed: 11.71 ft at 4:00AM May 01, 2024Observed: 11.72 ft at 4:15AM May 01, 2024Observed: 11.72 ft at 4:30AM May 01, 2024Observed: 11.73 ft at 4:45AM May 01, 2024Observed: 11.74 ft at 5:00AM May 01, 2024Observed: 11.75 ft at 5:15AM May 01, 2024Observed: 11.75 ft at 5:30AM May 01, 2024Observed: 11.76 ft at 5:45AM May 01, 2024Observed: 11.77 ft at 6:00AM May 01, 2024Observed: 11.78 ft at 6:15AM May 01, 2024Observed: 11.79 ft at 6:30AM May 01, 2024Observed: 11.79 ft at 6:45AM May 01, 2024Observed: 11.8 ft at 7:00AM May 01, 2024Observed: 11.81 ft at 7:15AM May 01, 2024Observed: 11.81 ft at 7:30AM May 01, 2024Observed: 11.82 ft at 7:45AM May 01, 2024Observed: 11.83 ft at 8:00AM May 01, 2024Observed: 11.83 ft at 8:15AM May 01, 2024Observed: 11.84 ft at 8:30AM May 01, 2024Observed: 11.85 ft at 8:45AM May 01, 2024Observed: 11.86 ft at 9:00AM May 01, 2024Observed: 11.87 ft at 9:15AM May 01, 2024Observed: 11.87 ft at 9:30AM May 01, 2024Observed: 11.88 ft at 9:45AM May 01, 2024Observed: 11.88 ft at 10:00AM May 01, 2024Observed: 11.89 ft at 10:15AM May 01, 2024Observed: 11.9 ft at 10:30AM May 01, 2024Observed: 11.9 ft at 10:45AM May 01, 2024Observed: 11.91 ft at 11:00AM May 01, 2024Observed: 11.92 ft at 11:15AM May 01, 2024Observed: 11.92 ft at 11:30AM May 01, 2024Observed: 11.93 ft at 11:45AM May 01, 2024Observed: 11.93 ft at 12:00PM May 01, 2024Observed: 11.93 ft at 12:15PM May 01, 2024Observed: 11.94 ft at 12:30PM May 01, 2024Observed: 11.95 ft at 12:45PM May 01, 2024Observed: 11.96 ft at 1:00PM May 01, 2024Observed: 11.96 ft at 1:15PM May 01, 2024Observed: 11.96 ft at 1:30PM May 01, 2024Observed: 11.78 ft at 1:45PM May 01, 2024Observed: 11.95 ft at 2:00PM May 01, 2024Observed: 11.98 ft at 2:15PM May 01, 2024Observed: 11.98 ft at 2:30PM May 01, 2024Observed: 11.98 ft at 2:45PM May 01, 2024Observed: 11.99 ft at 3:00PM May 01, 2024Observed: 11.98 ft at 3:15PM May 01, 2024Observed: 11.98 ft at 3:30PM May 01, 2024Observed: 11.97 ft at 3:45PM May 01, 2024Observed: 12 ft at 4:00PM May 01, 2024Observed: 12 ft at 4:15PM May 01, 2024Observed: 12 ft at 4:30PM May 01, 2024Observed: 12.01 ft at 4:45PM May 01, 2024Observed: 12 ft at 5:00PM May 01, 2024Observed: 12.01 ft at 5:15PM May 01, 2024Observed: 12.01 ft at 5:30PM May 01, 2024Observed: 12.01 ft at 5:45PM May 01, 2024Observed: 12.01 ft at 6:00PM May 01, 2024Observed: 12.01 ft at 6:15PM May 01, 2024Highest Observation: 12.02 ft at 6:30PM May 01, 2024Observed: 12.01 ft at 6:45PM May 01, 2024Observed: 12 ft at 7:00PM May 01, 2024Observed: 12.01 ft at 7:15PM May 01, 2024Observed: 12 ft at 7:30PM May 01, 2024Observed: 11.99 ft at 7:45PM May 01, 2024Observed: 12.01 ft at 8:00PM May 01, 2024Observed: 12.01 ft at 8:15PM May 01, 2024Observed: 12 ft at 8:30PM May 01, 2024Observed: 12 ft at 8:45PM May 01, 2024Observed: 12.01 ft at 9:00PM May 01, 2024Observed: 12 ft at 9:15PM May 01, 2024Observed: 12 ft at 9:30PM May 01, 2024Observed: 12.01 ft at 9:45PM May 01, 2024Observed: 12.01 ft at 10:00PM May 01, 2024Observed: 12.01 ft at 10:15PM May 01, 2024Observed: 12.01 ft at 10:30PM May 01, 2024Observed: 12.01 ft at 10:45PM May 01, 2024Observed: 12.01 ft at 11:00PM May 01, 2024Observed: 12.01 ft at 11:15PM May 01, 2024Observed: 12.01 ft at 11:30PM May 01, 2024Highest Observation: 12.02 ft at 11:45PM May 01, 2024Observed: 12.01 ft at 12:00AM May 02, 2024Observed: 12.01 ft at 12:15AM May 02, 2024Observed: 12.01 ft at 12:30AM May 02, 2024Observed: 12.01 ft at 12:45AM May 02, 2024Highest Observation: 12.02 ft at 1:00AM May 02, 2024Highest Observation: 12.02 ft at 1:15AM May 02, 2024Highest Observation: 12.02 ft at 1:30AM May 02, 2024Highest Observation: 12.02 ft at 1:45AM May 02, 2024Highest Observation: 12.02 ft at 2:00AM May 02, 2024Observed: 12.01 ft at 2:15AM May 02, 2024Observed: 12.01 ft at 2:30AM May 02, 2024Observed: 12.01 ft at 2:45AM May 02, 2024Observed: 12.01 ft at 3:00AM May 02, 2024Highest Observation: 12.02 ft at 3:15AM May 02, 2024Observed: 12.01 ft at 3:30AM May 02, 2024Observed: 12.01 ft at 3:45AM May 02, 2024Observed: 12.01 ft at 4:00AM May 02, 2024Observed: 12.01 ft at 4:15AM May 02, 2024Observed: 12.01 ft at 4:30AM May 02, 2024Observed: 12.01 ft at 4:45AM May 02, 2024Observed: 12.01 ft at 5:00AM May 02, 2024Observed: 12.01 ft at 5:30AM May 02, 2024Observed: 12 ft at 5:45AM May 02, 2024Observed: 12 ft at 6:00AM May 02, 2024Observed: 12 ft at 6:15AM May 02, 2024Observed: 11.79 ft at 6:30AM May 02, 2024Observed: 12 ft at 6:45AM May 02, 2024Observed: 12 ft at 7:00AM May 02, 2024Observed: 12 ft at 7:15AM May 02, 2024Observed: 12 ft at 7:30AM May 02, 2024Observed: 12 ft at 7:45AM May 02, 2024Observed: 12 ft at 8:00AM May 02, 2024Observed: 11.99 ft at 8:15AM May 02, 2024Observed: 12 ft at 8:30AM May 02, 2024Observed: 12 ft at 8:45AM May 02, 2024Observed: 12 ft at 9:00AM May 02, 2024Observed: 12 ft at 9:15AM May 02, 2024Observed: 12 ft at 9:30AM May 02, 2024Observed: 12 ft at 9:45AM May 02, 2024Observed: 12 ft at 10:00AM May 02, 2024Observed: 12 ft at 10:15AM May 02, 2024Observed: 12 ft at 10:30AM May 02, 2024Observed: 12 ft at 10:45AM May 02, 2024Observed: 12 ft at 11:00AM May 02, 2024Observed: 12 ft at 11:15AM May 02, 2024Observed: 12 ft at 11:30AM May 02, 2024Observed: 12 ft at 11:45AM May 02, 2024Observed: 12 ft at 12:00PM May 02, 2024Observed: 12 ft at 12:15PM May 02, 2024Observed: 12 ft at 12:30PM May 02, 2024Observed: 12.01 ft at 12:45PM May 02, 2024Observed: 12 ft at 1:00PM May 02, 2024Observed: 12.01 ft at 1:15PM May 02, 2024Observed: 12.01 ft at 1:30PM May 02, 2024Observed: 12.01 ft at 1:45PM May 02, 2024Observed: 12.01 ft at 2:00PM May 02, 2024Observed: 12 ft at 2:15PM May 02, 2024Observed: 12.01 ft at 2:30PM May 02, 2024Observed: 12.01 ft at 2:45PM May 02, 2024Observed: 12 ft at 3:00PM May 02, 2024Observed: 11.99 ft at 3:15PM May 02, 2024Observed: 12 ft at 3:30PM May 02, 2024Observed: 12 ft at 3:45PM May 02, 2024Observed: 11.99 ft at 4:00PM May 02, 2024Observed: 11.99 ft at 4:15PM May 02, 2024Observed: 12 ft at 4:30PM May 02, 2024Observed: 12 ft at 4:45PM May 02, 2024Observed: 11.99 ft at 5:00PM May 02, 2024Highest Forecast: 12 ft 7:00PM May 02, 2024Forecast: 11.9 ft 1:00AM May 03, 2024Forecast: 11.9 ft 7:00AM May 03, 2024Forecast: 11.9 ft 1:00PM May 03, 2024Forecast: 11.9 ft 7:00PM May 03, 2024Forecast: 11.9 ft 1:00AM May 04, 2024Forecast: 11.9 ft 7:00AM May 04, 2024Forecast: 11.9 ft 1:00PM May 04, 2024Forecast: 11.8 ft 7:00PM May 04, 2024Forecast: 11.8 ft 1:00AM May 05, 2024Forecast: 11.7 ft 7:00AM May 05, 2024Forecast: 11.6 ft 1:00PM May 05, 2024Forecast: 11.5 ft 7:00PM May 05, 2024Forecast: 11.4 ft 1:00AM May 06, 2024Forecast: 11.3 ft 7:00AM May 06, 2024Forecast: 11.2 ft 1:00PM May 06, 2024Forecast: 11.1 ft 7:00PM May 06, 2024Forecast: 11.1 ft 1:00AM May 07, 2024Forecast: 11 ft 7:00AM May 07, 2024USGS--Water Resources of the United StatesCALK2(plotting HPIRG) Graph Created (6:17PM May 2, 2024)ObservedForecast (issued 7:50AM May 2)Latest observed value: 11.99 ft at 5:00 PM CDT 2-May-2024. Flood Stage is 23 ft
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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: Forecasts for the Green River (KY) at Calhoun Lock and Dam are issued routinely year-round.

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Upstream Locations Upstream Gauge Downstream Gauge Downstream Gauge - above Spottsville
Flood Categories (in feet)
Major Flood Stage: 32
Moderate Flood Stage: 26
Flood Stage: 23
Action Stage: 18
Low Stage (in feet): 9.5

Historic Crests
(1) 43.75 ft on 01/27/1937
(2) 36.80 ft on 01/01/1913
(3) 36.30 ft on 01/16/1950
(4) 34.37 ft on 03/11/1997
(5) 34.01 ft on 05/07/2011
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 25.40 ft on 02/28/2022
(2) 24.59 ft on 01/13/2022
(3) 29.69 ft on 03/09/2021
(4) 27.25 ft on 02/18/2020
(5) 30.69 ft on 03/01/2019
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
(1) 3.11 ft on 10/22/1939
(2) 7.75 ft on 01/01/1901
(3) 9.52 ft on 08/31/2012
Show More Low Water Records

For more information on your flood risk go to www.floodsmart.gov.
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
42.4 This flood will exceed the highest stage on record. 60 percent of McLean county is inundated.
33 The entire town of Rumsey is flooded.
32 Major flooding occurs. State Road KY 81 becomes blocked.
30 Lower Calhoun begins flooding. A large portion of Rumsey is flooded and evacuation of homes becomes necessary.
26 Moderate flooding occurs with thousands of acreage flooded in the Island, Rumsey, and Jewel City areas.
23 Minor flooding occurs affecting mainly agricultural bottomland and low lying areas.
Photos
(1) Calhoun Lock and Dam
(2) Green River Upstream
(3) Green River Downstream
(4) Gage House and Staff Gage
(5) Facing SE toward Rumsey
About This Location Collapse

Latitude: 37.533889° N, Longitude: 87.263889° W, Horizontal Datum: NAD27

River Stage
Reference Frame		 Gauge Height Flood Stage Uses
NWS stage 0 ft 23 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 29 353.95 ft 376.95 ft 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:
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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
Paducah Weather Forecast Office
8250 Highway 3520
West Paducah, KY 42086-6440
(270) 744-6440
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