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Hydrograph River at a Glance Download
Contoocook River at Henniker Stage (ft)Flow (kcfs)Observed: 6.63 ft at 2:45AM Nov 23, 2014Observed: 6.57 ft at 3:00AM Nov 23, 2014Observed: 6.58 ft at 3:15AM Nov 23, 2014Observed: 6.55 ft at 3:30AM Nov 23, 2014Observed: 6.53 ft at 3:45AM Nov 23, 2014Observed: 6.51 ft at 4:00AM Nov 23, 2014Observed: 6.48 ft at 4:15AM Nov 23, 2014Observed: 6.46 ft at 4:30AM Nov 23, 2014Observed: 6.44 ft at 4:45AM Nov 23, 2014Observed: 6.4 ft at 5:00AM Nov 23, 2014Observed: 6.4 ft at 5:15AM Nov 23, 2014Observed: 6.36 ft at 5:30AM Nov 23, 2014Observed: 6.33 ft at 5:45AM Nov 23, 2014Observed: 6.33 ft at 6:00AM Nov 23, 2014Observed: 6.29 ft at 6:15AM Nov 23, 2014Observed: 6.27 ft at 6:30AM Nov 23, 2014Observed: 6.28 ft at 6:45AM Nov 23, 2014Observed: 6.26 ft at 7:00AM Nov 23, 2014Observed: 6.24 ft at 7:15AM Nov 23, 2014Observed: 6.24 ft at 7:30AM Nov 23, 2014Observed: 6.23 ft at 7:45AM Nov 23, 2014Observed: 6.21 ft at 8:00AM Nov 23, 2014Observed: 6.21 ft at 8:15AM Nov 23, 2014Observed: 6.19 ft at 8:30AM Nov 23, 2014Observed: 6.17 ft at 8:45AM Nov 23, 2014Observed: 6.17 ft at 9:00AM Nov 23, 2014Observed: 6.16 ft at 9:15AM Nov 23, 2014Observed: 6.15 ft at 9:30AM Nov 23, 2014Observed: 6.16 ft at 9:45AM Nov 23, 2014Observed: 6.15 ft at 10:00AM Nov 23, 2014Observed: 6.14 ft at 10:15AM Nov 23, 2014Observed: 6.13 ft at 10:30AM Nov 23, 2014Observed: 6.13 ft at 10:45AM Nov 23, 2014Observed: 6.12 ft at 11:00AM Nov 23, 2014Observed: 6.13 ft at 11:15AM Nov 23, 2014Observed: 6.13 ft at 11:30AM Nov 23, 2014Observed: 6.12 ft at 11:45AM Nov 23, 2014Observed: 6.11 ft at 12:00PM Nov 23, 2014Observed: 6.1 ft at 12:15PM Nov 23, 2014Observed: 6.11 ft at 12:30PM Nov 23, 2014Observed: 6.1 ft at 12:45PM Nov 23, 2014Observed: 6.11 ft at 1:00PM Nov 23, 2014Observed: 6.09 ft at 1:15PM Nov 23, 2014Observed: 6.08 ft at 1:30PM Nov 23, 2014Observed: 6.1 ft at 1:45PM Nov 23, 2014Observed: 6.09 ft at 2:00PM Nov 23, 2014Observed: 6.1 ft at 2:15PM Nov 23, 2014Observed: 6.09 ft at 2:30PM Nov 23, 2014Observed: 6.07 ft at 2:45PM Nov 23, 2014Observed: 6.09 ft at 3:00PM Nov 23, 2014Observed: 6.08 ft at 3:15PM Nov 23, 2014Observed: 6.08 ft at 3:16PM Nov 23, 2014Observed: 6.08 ft at 3:30PM Nov 23, 2014Observed: 6.08 ft at 3:45PM Nov 23, 2014Observed: 6.1 ft at 4:00PM Nov 23, 2014Observed: 6.08 ft at 4:15PM Nov 23, 2014Observed: 6.08 ft at 4:30PM Nov 23, 2014Observed: 6.08 ft at 4:45PM Nov 23, 2014Observed: 6.08 ft at 5:00PM Nov 23, 2014Observed: 6.09 ft at 5:15PM Nov 23, 2014Observed: 6.09 ft at 5:30PM Nov 23, 2014Observed: 6.09 ft at 5:45PM Nov 23, 2014Observed: 6.13 ft at 6:00PM Nov 23, 2014Observed: 6.17 ft at 6:15PM Nov 23, 2014Observed: 6.2 ft at 6:30PM Nov 23, 2014Observed: 6.22 ft at 6:45PM Nov 23, 2014Observed: 6.26 ft at 7:00PM Nov 23, 2014Observed: 6.33 ft at 7:15PM Nov 23, 2014Observed: 6.37 ft at 7:30PM Nov 23, 2014Observed: 6.41 ft at 7:45PM Nov 23, 2014Observed: 6.41 ft at 8:00PM Nov 23, 2014Observed: 6.48 ft at 8:15PM Nov 23, 2014Observed: 6.51 ft at 8:30PM Nov 23, 2014Observed: 6.53 ft at 8:45PM Nov 23, 2014Observed: 6.58 ft at 9:00PM Nov 23, 2014Observed: 6.58 ft at 9:15PM Nov 23, 2014Observed: 6.61 ft at 9:30PM Nov 23, 2014Observed: 6.66 ft at 9:45PM Nov 23, 2014Observed: 6.68 ft at 10:00PM Nov 23, 2014Observed: 6.68 ft at 10:15PM Nov 23, 2014Observed: 6.71 ft at 10:30PM Nov 23, 2014Observed: 6.69 ft at 10:45PM Nov 23, 2014Observed: 6.71 ft at 11:00PM Nov 23, 2014Observed: 6.68 ft at 11:15PM Nov 23, 2014Observed: 6.66 ft at 11:30PM Nov 23, 2014Observed: 6.65 ft at 11:45PM Nov 23, 2014Observed: 6.63 ft at 12:00AM Nov 24, 2014Observed: 6.62 ft at 12:15AM Nov 24, 2014Observed: 6.59 ft at 12:30AM Nov 24, 2014Observed: 6.56 ft at 12:45AM Nov 24, 2014Observed: 6.57 ft at 1:00AM Nov 24, 2014Observed: 6.5 ft at 1:15AM Nov 24, 2014Observed: 6.5 ft at 1:30AM Nov 24, 2014Observed: 6.47 ft at 1:45AM Nov 24, 2014Observed: 6.45 ft at 2:00AM Nov 24, 2014Observed: 6.43 ft at 2:15AM Nov 24, 2014Observed: 6.39 ft at 2:30AM Nov 24, 2014Observed: 6.35 ft at 2:45AM Nov 24, 2014Observed: 6.35 ft at 3:00AM Nov 24, 2014Observed: 6.33 ft at 3:15AM Nov 24, 2014Observed: 6.33 ft at 3:16AM Nov 24, 2014Observed: 6.31 ft at 3:30AM Nov 24, 2014Observed: 6.31 ft at 3:45AM Nov 24, 2014Observed: 6.26 ft at 4:00AM Nov 24, 2014Observed: 6.27 ft at 4:15AM Nov 24, 2014Observed: 6.26 ft at 4:30AM Nov 24, 2014Observed: 6.24 ft at 4:45AM Nov 24, 2014Observed: 6.21 ft at 5:00AM Nov 24, 2014Observed: 6.22 ft at 5:15AM Nov 24, 2014Observed: 6.2 ft at 5:30AM Nov 24, 2014Observed: 6.19 ft at 5:45AM Nov 24, 2014Observed: 6.18 ft at 6:00AM Nov 24, 2014Observed: 6.2 ft at 6:15AM Nov 24, 2014Observed: 6.2 ft at 6:30AM Nov 24, 2014Observed: 6.22 ft at 6:45AM Nov 24, 2014Observed: 6.19 ft at 7:00AM Nov 24, 2014Observed: 6.21 ft at 7:15AM Nov 24, 2014Observed: 6.21 ft at 7:30AM Nov 24, 2014Observed: 6.2 ft at 7:45AM Nov 24, 2014Observed: 6.2 ft at 8:00AM Nov 24, 2014Observed: 6.2 ft at 8:15AM Nov 24, 2014Observed: 6.22 ft at 8:30AM Nov 24, 2014Observed: 6.22 ft at 8:45AM Nov 24, 2014Observed: 6.22 ft at 9:00AM Nov 24, 2014Observed: 6.25 ft at 9:15AM Nov 24, 2014Observed: 6.25 ft at 9:30AM Nov 24, 2014Observed: 6.24 ft at 9:45AM Nov 24, 2014Observed: 6.25 ft at 10:00AM Nov 24, 2014Observed: 6.24 ft at 10:15AM Nov 24, 2014Observed: 6.22 ft at 10:30AM Nov 24, 2014Observed: 6.16 ft at 10:45AM Nov 24, 2014Observed: 6.17 ft at 11:00AM Nov 24, 2014Observed: 6.16 ft at 11:15AM Nov 24, 2014Observed: 6.19 ft at 11:30AM Nov 24, 2014Observed: 6.2 ft at 11:45AM Nov 24, 2014Observed: 6.2 ft at 12:00PM Nov 24, 2014Observed: 6.22 ft at 12:15PM Nov 24, 2014Observed: 6.26 ft at 12:30PM Nov 24, 2014Observed: 6.25 ft at 12:45PM Nov 24, 2014Observed: 6.27 ft at 1:00PM Nov 24, 2014Observed: 6.3 ft at 1:15PM Nov 24, 2014Observed: 6.27 ft at 1:30PM Nov 24, 2014Observed: 6.31 ft at 1:45PM Nov 24, 2014Observed: 6.31 ft at 2:00PM Nov 24, 2014Observed: 6.33 ft at 2:15PM Nov 24, 2014Observed: 6.35 ft at 2:30PM Nov 24, 2014Observed: 6.37 ft at 2:45PM Nov 24, 2014Observed: 6.36 ft at 3:00PM Nov 24, 2014Observed: 6.38 ft at 3:15PM Nov 24, 2014Observed: 6.36 ft at 3:30PM Nov 24, 2014Observed: 6.38 ft at 3:45PM Nov 24, 2014Observed: 6.38 ft at 4:00PM Nov 24, 2014Observed: 6.39 ft at 4:15PM Nov 24, 2014Observed: 6.41 ft at 4:30PM Nov 24, 2014Observed: 6.42 ft at 4:45PM Nov 24, 2014Observed: 6.43 ft at 5:00PM Nov 24, 2014Observed: 6.46 ft at 5:15PM Nov 24, 2014Observed: 6.51 ft at 5:30PM Nov 24, 2014Observed: 6.56 ft at 5:45PM Nov 24, 2014Observed: 6.61 ft at 6:00PM Nov 24, 2014Observed: 6.64 ft at 6:15PM Nov 24, 2014Observed: 6.67 ft at 6:30PM Nov 24, 2014Observed: 6.73 ft at 6:45PM Nov 24, 2014Observed: 6.78 ft at 7:00PM Nov 24, 2014Observed: 6.86 ft at 7:15PM Nov 24, 2014Observed: 6.88 ft at 7:30PM Nov 24, 2014Observed: 6.89 ft at 7:45PM Nov 24, 2014Observed: 6.98 ft at 8:00PM Nov 24, 2014Observed: 6.98 ft at 8:15PM Nov 24, 2014Observed: 7.05 ft at 8:30PM Nov 24, 2014Observed: 7.02 ft at 8:45PM Nov 24, 2014Observed: 7.06 ft at 9:00PM Nov 24, 2014Observed: 7.13 ft at 9:15PM Nov 24, 2014Observed: 7.13 ft at 9:16PM Nov 24, 2014Observed: 7.13 ft at 9:30PM Nov 24, 2014Observed: 7.18 ft at 9:45PM Nov 24, 2014Observed: 7.16 ft at 10:00PM Nov 24, 2014Observed: 7.19 ft at 10:15PM Nov 24, 2014Observed: 7.18 ft at 10:30PM Nov 24, 2014Observed: 7.17 ft at 10:45PM Nov 24, 2014Observed: 7.26 ft at 11:00PM Nov 24, 2014Observed: 7.2 ft at 11:15PM Nov 24, 2014Observed: 7.23 ft at 11:30PM Nov 24, 2014Observed: 7.16 ft at 11:45PM Nov 24, 2014Observed: 7.11 ft at 12:00AM Nov 25, 2014Observed: 7.11 ft at 12:15AM Nov 25, 2014Observed: 7.11 ft at 12:30AM Nov 25, 2014Observed: 7.08 ft at 12:45AM Nov 25, 2014Observed: 7.04 ft at 1:00AM Nov 25, 2014Observed: 7.04 ft at 1:15AM Nov 25, 2014Observed: 7.02 ft at 1:30AM Nov 25, 2014Observed: 6.97 ft at 1:45AM Nov 25, 2014Observed: 6.98 ft at 2:00AM Nov 25, 2014Observed: 6.94 ft at 2:15AM Nov 25, 2014Observed: 6.96 ft at 2:30AM Nov 25, 2014Observed: 6.96 ft at 2:45AM Nov 25, 2014Observed: 6.93 ft at 3:00AM Nov 25, 2014Observed: 6.88 ft at 3:15AM Nov 25, 2014Observed: 6.91 ft at 3:30AM Nov 25, 2014Observed: 6.88 ft at 3:45AM Nov 25, 2014Observed: 6.88 ft at 4:00AM Nov 25, 2014Observed: 6.86 ft at 4:15AM Nov 25, 2014Observed: 6.87 ft at 4:30AM Nov 25, 2014Observed: 6.83 ft at 4:45AM Nov 25, 2014Observed: 6.83 ft at 5:00AM Nov 25, 2014Observed: 6.86 ft at 5:15AM Nov 25, 2014Observed: 6.85 ft at 5:30AM Nov 25, 2014Observed: 6.83 ft at 5:45AM Nov 25, 2014Observed: 6.84 ft at 6:00AM Nov 25, 2014Observed: 6.81 ft at 6:15AM Nov 25, 2014Observed: 6.82 ft at 6:30AM Nov 25, 2014Observed: 6.8 ft at 6:45AM Nov 25, 2014Observed: 6.82 ft at 7:00AM Nov 25, 2014Observed: 6.83 ft at 7:15AM Nov 25, 2014Observed: 6.83 ft at 7:30AM Nov 25, 2014Observed: 6.83 ft at 7:45AM Nov 25, 2014Observed: 6.83 ft at 8:00AM Nov 25, 2014Observed: 6.86 ft at 8:15AM Nov 25, 2014Observed: 6.88 ft at 8:30AM Nov 25, 2014Observed: 6.9 ft at 8:45AM Nov 25, 2014Observed: 6.95 ft at 9:00AM Nov 25, 2014Observed: 6.95 ft at 9:15AM Nov 25, 2014Observed: 6.95 ft at 9:16AM Nov 25, 2014Observed: 6.98 ft at 9:30AM Nov 25, 2014Observed: 6.98 ft at 9:45AM Nov 25, 2014Observed: 7.03 ft at 10:00AM Nov 25, 2014Observed: 7.05 ft at 10:15AM Nov 25, 2014Observed: 7.06 ft at 10:30AM Nov 25, 2014Observed: 7.08 ft at 10:45AM Nov 25, 2014Observed: 7.14 ft at 11:00AM Nov 25, 2014Observed: 7.1 ft at 11:15AM Nov 25, 2014Observed: 7.07 ft at 11:30AM Nov 25, 2014Observed: 7.14 ft at 11:45AM Nov 25, 2014Observed: 7.16 ft at 12:00PM Nov 25, 2014Observed: 7.12 ft at 12:15PM Nov 25, 2014Observed: 7.16 ft at 12:30PM Nov 25, 2014Observed: 7.13 ft at 12:45PM Nov 25, 2014Observed: 7.14 ft at 1:00PM Nov 25, 2014Observed: 7.18 ft at 1:15PM Nov 25, 2014Observed: 7.17 ft at 1:30PM Nov 25, 2014Observed: 7.16 ft at 1:45PM Nov 25, 2014Observed: 7.16 ft at 2:00PM Nov 25, 2014Observed: 7.16 ft at 2:15PM Nov 25, 2014Observed: 7.18 ft at 2:30PM Nov 25, 2014Observed: 7.17 ft at 2:45PM Nov 25, 2014Observed: 7.16 ft at 3:00PM Nov 25, 2014Observed: 7.18 ft at 3:15PM Nov 25, 2014Observed: 7.18 ft at 3:16PM Nov 25, 2014Observed: 7.19 ft at 3:30PM Nov 25, 2014Observed: 7.18 ft at 3:45PM Nov 25, 2014Observed: 7.18 ft at 4:00PM Nov 25, 2014Observed: 7.21 ft at 4:15PM Nov 25, 2014Observed: 7.21 ft at 4:30PM Nov 25, 2014Observed: 7.16 ft at 4:45PM Nov 25, 2014Observed: 7.18 ft at 5:00PM Nov 25, 2014Observed: 7.2 ft at 5:15PM Nov 25, 2014Observed: 7.19 ft at 5:30PM Nov 25, 2014Observed: 7.17 ft at 5:45PM Nov 25, 2014Observed: 7.16 ft at 6:00PM Nov 25, 2014Observed: 7.2 ft at 6:15PM Nov 25, 2014Observed: 7.18 ft at 6:30PM Nov 25, 2014Observed: 7.18 ft at 6:45PM Nov 25, 2014Observed: 7.14 ft at 7:00PM Nov 25, 2014Observed: 7.17 ft at 7:15PM Nov 25, 2014Observed: 7.14 ft at 7:30PM Nov 25, 2014Observed: 7.18 ft at 7:45PM Nov 25, 2014Observed: 7.22 ft at 8:00PM Nov 25, 2014Observed: 7.2 ft at 8:15PM Nov 25, 2014Observed: 7.22 ft at 8:30PM Nov 25, 2014Observed: 7.23 ft at 8:45PM Nov 25, 2014Observed: 7.2 ft at 9:00PM Nov 25, 2014Observed: 7.19 ft at 9:15PM Nov 25, 2014Observed: 7.19 ft at 9:16PM Nov 25, 2014Observed: 7.2 ft at 9:30PM Nov 25, 2014Observed: 7.19 ft at 9:45PM Nov 25, 2014Observed: 7.21 ft at 10:00PM Nov 25, 2014Observed: 7.25 ft at 10:15PM Nov 25, 2014Observed: 7.27 ft at 10:30PM Nov 25, 2014Observed: 7.23 ft at 10:45PM Nov 25, 2014Highest Observation: 7.28 ft at 11:00PM Nov 25, 2014Observed: 7.2 ft at 11:15PM Nov 25, 2014Observed: 7.22 ft at 11:30PM Nov 25, 2014Observed: 7.2 ft at 11:45PM Nov 25, 2014Observed: 7.23 ft at 12:00AM Nov 26, 2014Observed: 7.13 ft at 12:15AM Nov 26, 2014Observed: 7.09 ft at 12:30AM Nov 26, 2014Observed: 7.09 ft at 12:45AM Nov 26, 2014Observed: 7.04 ft at 1:00AM Nov 26, 2014Observed: 7.04 ft at 1:15AM Nov 26, 2014Observed: 7.01 ft at 1:30AM Nov 26, 2014Forecast: 7.2 ft 7:00AM Nov 26, 2014Highest Forecast: 7.4 ft 1:00PM Nov 26, 2014Highest Forecast: 7.4 ft 7:00PM Nov 26, 2014Forecast: 7.2 ft 1:00AM Nov 27, 2014Forecast: 7.1 ft 7:00AM Nov 27, 2014Forecast: 7 ft 1:00PM Nov 27, 2014Forecast: 6.9 ft 7:00PM Nov 27, 2014Forecast: 6.9 ft 1:00AM Nov 28, 2014Forecast: 6.8 ft 7:00AM Nov 28, 2014USGS--Water Resources of the United StatesHENN3(plotting HGIRG) Graph Created (2:33AM Nov 26, 2014)ObservedForecast (issued 11:19AM Nov 25)Latest observed value: 7.01 ft at 1:30 AM EST 26-Nov-2014. Flood Stage is 12 ft
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About this graph
Tabular Data (UTC)
Tabular Data (EST)
XML Data
RSS Files
Datum: Not Available
Metadata
NOTE: Forecasts for the Contoocook River at Henniker are issued routinely year-round.
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Upstream Gauge - at Peterborough Upstream Gauge
Flood Categories (in feet)
Major Flood Stage: 20
Moderate Flood Stage: 16
Flood Stage: 12
Action Stage: 10
Low Stage (in feet): 0

Historic Crests
(1) 21.30 ft on 09/21/1938
(2) 14.54 ft on 04/17/2007
(3) 13.75 ft on 10/16/2005
(4) 13.48 ft on 05/15/2006
(5) 13.32 ft on 04/03/2004
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 14.54 ft on 04/17/2007
(2) 13.48 ft on 05/15/2006
(3) 13.75 ft on 10/16/2005
(4) 13.32 ft on 04/03/2004
(5) 13.22 ft on 01/18/1977
Show More Recent Crests

(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: 43.151944° N, Longitude: 71.857778° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame
Gauge Height Flood Stage Uses
NWS stage 0 ft 12 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 29 475 ft 487 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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Hydrologic Resources Additional Resources
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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
Gray Weather Forecast Office
P.O. Box 1208, 1 Weather Lane, Route 231
Gray, ME 04039
(207) 688-3216
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Page last modified: 20-Nov-2014 2:55 AM
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