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ALERT: December 13th update on the status of the nationwide data transmission error preventing stream gauge data collected at affected locations from being displayed on the Advanced Hydrologic Prediction Services (AHPS) webpages. As of 11/08/2018, The USGS has restored all impacted operational stream gauges to transmitting status. The status map of gauge outages from other agencies is here. This will be the last outage map posted as over 95% of the gauge outages have been restored. Local NWS offices will continue to monitor the remaining gauge outages.

Hydrograph River at a Glance Download
 at Grand Chain Lock and Dam Stage (ft)GCTI2(plotting HPIRZ) Graph Created (10:17AM Sep 11, 2018)Flood Stage is 42 ft
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Datum: Not Available
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 at Grand Chain Lock and Dam are issued as needed during times of high water, but are not routinely available.

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Downstream Gauge Downstream Gauge - at Cairo
Flood Categories (in feet)
Major Flood Stage: 53
Moderate Flood Stage: 48
Flood Stage: 42
Action Stage: 40
Low Stage (in feet): -9999

Historic Crests
(1) 64.00 ft on 02/02/1937
(2) 62.20 ft on 05/03/2011
(3) 57.80 ft on 03/15/1997
(4) 57.60 ft on 04/03/1975
(5) 57.30 ft on 03/02/2018
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 57.30 ft on 03/02/2018
(2) 51.20 ft on 05/12/2017
(3) 45.90 ft on 03/01/2016
(4) 55.40 ft on 01/04/2016
(5) 51.50 ft on 03/17/2015
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
(1) 13.70 ft on 09/09/2005
(2) 13.90 ft on 10/20/2000
(3) 14.20 ft on 07/28/2012
Show More Low Water Records

For more information on your flood risk go to

Zoom Level:16
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Gauge LocationGauge Map Marker
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
64 This flood will exceed the highest stage on record.
48 Water reaches the power house at Lock and Dam 53.
42 This will cause minor flooding of mainly low lying areas.
(1) Grand Chain Lock and Dam
(2) Ohio River Upstream
(3) Ohio River Downstream
(4) Incline Gage
(5) Incline Gage
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Latitude: 37.203611° N, Longitude: 89.042222° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame
Gauge Height Flood Stage Uses
NWS stage 0 ft 42 ft Interpreting hydrographs and NWS watch, warnings, and forecasts, and inundation maps
Vertical Datum Elevation
(gauge height = 0)
(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 273.1 ft 315.1 ft  
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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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Page last modified: 21-Dec-2016 10:37 PM
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