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Hydrograph River at a Glance Download
Connecticut River at North Walpole Stage (ft)Flow (kcfs)Observed: 7.7 ft at 9:15PM Feb 22, 2021Observed: 7.09 ft at 9:30PM Feb 22, 2021Observed: 6.71 ft at 9:45PM Feb 22, 2021Observed: 6.45 ft at 10:00PM Feb 22, 2021Observed: 6.29 ft at 10:15PM Feb 22, 2021Observed: 6.19 ft at 10:30PM Feb 22, 2021Observed: 6.13 ft at 10:45PM Feb 22, 2021Observed: 6.09 ft at 11:00PM Feb 22, 2021Observed: 6.08 ft at 11:15PM Feb 22, 2021Observed: 6.06 ft at 11:30PM Feb 22, 2021Observed: 6.05 ft at 11:45PM Feb 22, 2021Observed: 6.05 ft at 12:00AM Feb 23, 2021Observed: 6.04 ft at 12:15AM Feb 23, 2021Observed: 6.04 ft at 12:30AM Feb 23, 2021Observed: 6.04 ft at 12:45AM Feb 23, 2021Observed: 6.02 ft at 1:00AM Feb 23, 2021Observed: 6.02 ft at 1:15AM Feb 23, 2021Observed: 6.03 ft at 1:30AM Feb 23, 2021Observed: 6.03 ft at 1:45AM Feb 23, 2021Observed: 6.03 ft at 2:00AM Feb 23, 2021Observed: 6.03 ft at 2:15AM Feb 23, 2021Observed: 6.03 ft at 2:30AM Feb 23, 2021Observed: 6.02 ft at 2:45AM Feb 23, 2021Observed: 6.02 ft at 3:00AM Feb 23, 2021Observed: 6.02 ft at 3:15AM Feb 23, 2021Observed: 6.03 ft at 3:30AM Feb 23, 2021Observed: 6.02 ft at 3:45AM Feb 23, 2021Observed: 6.02 ft at 4:00AM Feb 23, 2021Observed: 6.02 ft at 4:15AM Feb 23, 2021Observed: 6.02 ft at 4:30AM Feb 23, 2021Observed: 6.02 ft at 4:45AM Feb 23, 2021Observed: 6.03 ft at 5:00AM Feb 23, 2021Observed: 6.03 ft at 5:15AM Feb 23, 2021Observed: 6.03 ft at 5:30AM Feb 23, 2021Observed: 6.02 ft at 5:45AM Feb 23, 2021Observed: 6.02 ft at 6:00AM Feb 23, 2021Observed: 6 ft at 6:15AM Feb 23, 2021Observed: 5.95 ft at 6:30AM Feb 23, 2021Observed: 5.94 ft at 6:45AM Feb 23, 2021Observed: 5.92 ft at 7:00AM Feb 23, 2021Observed: 5.92 ft at 7:15AM Feb 23, 2021Observed: 5.92 ft at 7:30AM Feb 23, 2021Observed: 5.96 ft at 7:45AM Feb 23, 2021Observed: 6.31 ft at 8:00AM Feb 23, 2021Observed: 7.6 ft at 8:15AM Feb 23, 2021Observed: 8.15 ft at 8:30AM Feb 23, 2021Observed: 8.43 ft at 8:45AM Feb 23, 2021Observed: 8.59 ft at 9:00AM Feb 23, 2021Observed: 8.69 ft at 9:15AM Feb 23, 2021Observed: 8.74 ft at 9:30AM Feb 23, 2021Observed: 8.78 ft at 9:45AM Feb 23, 2021Observed: 8.36 ft at 10:00AM Feb 23, 2021Observed: 7.38 ft at 10:15AM Feb 23, 2021Observed: 6.83 ft at 10:30AM Feb 23, 2021Observed: 6.48 ft at 10:45AM Feb 23, 2021Observed: 6.25 ft at 11:00AM Feb 23, 2021Observed: 6.12 ft at 11:15AM Feb 23, 2021Observed: 6.03 ft at 11:30AM Feb 23, 2021Observed: 5.98 ft at 11:45AM Feb 23, 2021Observed: 5.95 ft at 12:00PM Feb 23, 2021Observed: 5.94 ft at 12:15PM Feb 23, 2021Observed: 5.93 ft at 12:30PM Feb 23, 2021Observed: 5.92 ft at 12:45PM Feb 23, 2021Observed: 6.26 ft at 1:00PM Feb 23, 2021Observed: 6.72 ft at 1:15PM Feb 23, 2021Observed: 6.97 ft at 1:30PM Feb 23, 2021Observed: 7.05 ft at 1:45PM Feb 23, 2021Observed: 7.09 ft at 2:00PM Feb 23, 2021Observed: 7.12 ft at 2:15PM Feb 23, 2021Observed: 7.14 ft at 2:30PM Feb 23, 2021Observed: 7.15 ft at 2:45PM Feb 23, 2021Observed: 7.15 ft at 3:00PM Feb 23, 2021Observed: 7.15 ft at 3:15PM Feb 23, 2021Observed: 7.16 ft at 3:30PM Feb 23, 2021Observed: 7.2 ft at 3:45PM Feb 23, 2021Observed: 7.23 ft at 4:00PM Feb 23, 2021Observed: 8.05 ft at 4:15PM Feb 23, 2021Observed: 8.39 ft at 4:30PM Feb 23, 2021Observed: 8.59 ft at 4:45PM Feb 23, 2021Observed: 8.69 ft at 5:00PM Feb 23, 2021Observed: 8.73 ft at 5:15PM Feb 23, 2021Observed: 8.78 ft at 5:30PM Feb 23, 2021Observed: 8.82 ft at 5:45PM Feb 23, 2021Observed: 8.84 ft at 6:00PM Feb 23, 2021Observed: 8.85 ft at 6:15PM Feb 23, 2021Observed: 8.87 ft at 6:30PM Feb 23, 2021Observed: 8.87 ft at 6:45PM Feb 23, 2021Observed: 8.88 ft at 7:00PM Feb 23, 2021Observed: 8.89 ft at 7:15PM Feb 23, 2021Observed: 8.9 ft at 7:30PM Feb 23, 2021Observed: 8.9 ft at 7:45PM Feb 23, 2021Observed: 8.91 ft at 8:00PM Feb 23, 2021Observed: 8.92 ft at 8:15PM Feb 23, 2021Observed: 8.91 ft at 8:30PM Feb 23, 2021Observed: 8.92 ft at 8:45PM Feb 23, 2021Observed: 8.31 ft at 9:00PM Feb 23, 2021Observed: 7.53 ft at 9:15PM Feb 23, 2021Observed: 7.04 ft at 9:30PM Feb 23, 2021Observed: 6.74 ft at 9:45PM Feb 23, 2021Observed: 6.56 ft at 10:00PM Feb 23, 2021Observed: 6.43 ft at 10:15PM Feb 23, 2021Observed: 6.36 ft at 10:30PM Feb 23, 2021Observed: 6.31 ft at 10:45PM Feb 23, 2021Observed: 6.28 ft at 11:00PM Feb 23, 2021Observed: 6.27 ft at 11:15PM Feb 23, 2021Observed: 6.26 ft at 11:30PM Feb 23, 2021Observed: 6.25 ft at 11:45PM Feb 23, 2021Observed: 6.26 ft at 12:00AM Feb 24, 2021Observed: 6.25 ft at 12:15AM Feb 24, 2021Observed: 6.25 ft at 12:30AM Feb 24, 2021Observed: 6.25 ft at 12:45AM Feb 24, 2021Observed: 6.24 ft at 1:00AM Feb 24, 2021Observed: 6.25 ft at 1:15AM Feb 24, 2021Observed: 6.24 ft at 1:30AM Feb 24, 2021Observed: 6.24 ft at 1:45AM Feb 24, 2021Observed: 6.25 ft at 2:00AM Feb 24, 2021Observed: 6.25 ft at 2:15AM Feb 24, 2021Observed: 6.25 ft at 2:30AM Feb 24, 2021Observed: 6.23 ft at 2:45AM Feb 24, 2021Observed: 6.23 ft at 3:00AM Feb 24, 2021Observed: 6.23 ft at 3:15AM Feb 24, 2021Observed: 6.23 ft at 3:30AM Feb 24, 2021Observed: 6.22 ft at 3:45AM Feb 24, 2021Observed: 6.23 ft at 4:00AM Feb 24, 2021Observed: 6.23 ft at 4:15AM Feb 24, 2021Observed: 6.23 ft at 4:30AM Feb 24, 2021Observed: 6.23 ft at 4:45AM Feb 24, 2021Observed: 6.23 ft at 5:00AM Feb 24, 2021Observed: 6.23 ft at 5:15AM Feb 24, 2021Observed: 6.24 ft at 5:30AM Feb 24, 2021Observed: 6.24 ft at 5:45AM Feb 24, 2021Observed: 6.23 ft at 6:00AM Feb 24, 2021Observed: 6.1 ft at 6:15AM Feb 24, 2021Observed: 6.02 ft at 6:30AM Feb 24, 2021Observed: 6.04 ft at 6:45AM Feb 24, 2021Observed: 6.54 ft at 7:00AM Feb 24, 2021Observed: 7.73 ft at 7:15AM Feb 24, 2021Observed: 8.19 ft at 7:30AM Feb 24, 2021Observed: 8.45 ft at 7:45AM Feb 24, 2021Observed: 8.62 ft at 8:00AM Feb 24, 2021Observed: 8.71 ft at 8:15AM Feb 24, 2021Observed: 8.76 ft at 8:30AM Feb 24, 2021Observed: 8.79 ft at 8:45AM Feb 24, 2021Observed: 8.82 ft at 9:00AM Feb 24, 2021Observed: 8.84 ft at 9:15AM Feb 24, 2021Observed: 8.85 ft at 9:30AM Feb 24, 2021Observed: 8.3 ft at 9:45AM Feb 24, 2021Observed: 8.01 ft at 10:00AM Feb 24, 2021Observed: 8.29 ft at 10:15AM Feb 24, 2021Observed: 7.87 ft at 10:30AM Feb 24, 2021Observed: 7.12 ft at 10:45AM Feb 24, 2021Observed: 6.68 ft at 11:00AM Feb 24, 2021Observed: 6.41 ft at 11:15AM Feb 24, 2021Observed: 6.25 ft at 11:30AM Feb 24, 2021Observed: 6.15 ft at 11:45AM Feb 24, 2021Observed: 6.09 ft at 12:00PM Feb 24, 2021Observed: 6.06 ft at 12:15PM Feb 24, 2021Observed: 6.04 ft at 12:30PM Feb 24, 2021Observed: 6.04 ft at 12:45PM Feb 24, 2021Observed: 6.03 ft at 1:00PM Feb 24, 2021Observed: 6.03 ft at 1:15PM Feb 24, 2021Observed: 6.03 ft at 1:30PM Feb 24, 2021Observed: 6.02 ft at 1:45PM Feb 24, 2021Observed: 6.36 ft at 2:00PM Feb 24, 2021Observed: 6.65 ft at 2:15PM Feb 24, 2021Observed: 6.85 ft at 2:30PM Feb 24, 2021Observed: 6.95 ft at 2:45PM Feb 24, 2021Observed: 6.83 ft at 3:00PM Feb 24, 2021Observed: 6.57 ft at 3:15PM Feb 24, 2021Observed: 6.9 ft at 3:30PM Feb 24, 2021Observed: 7.09 ft at 3:45PM Feb 24, 2021Observed: 7.75 ft at 4:00PM Feb 24, 2021Observed: 8.25 ft at 4:15PM Feb 24, 2021Observed: 8.53 ft at 4:30PM Feb 24, 2021Observed: 8.7 ft at 4:45PM Feb 24, 2021Observed: 8.8 ft at 5:00PM Feb 24, 2021Observed: 8.87 ft at 5:15PM Feb 24, 2021Observed: 8.91 ft at 5:30PM Feb 24, 2021Observed: 8.91 ft at 5:45PM Feb 24, 2021Observed: 8.95 ft at 6:00PM Feb 24, 2021Observed: 8.97 ft at 6:15PM Feb 24, 2021Observed: 8.98 ft at 6:30PM Feb 24, 2021Observed: 8.99 ft at 6:45PM Feb 24, 2021Observed: 8.99 ft at 7:00PM Feb 24, 2021Observed: 9 ft at 7:15PM Feb 24, 2021Observed: 9.01 ft at 7:30PM Feb 24, 2021Observed: 9.01 ft at 7:45PM Feb 24, 2021Observed: 9.01 ft at 8:00PM Feb 24, 2021Observed: 9.01 ft at 8:15PM Feb 24, 2021Observed: 9.02 ft at 8:30PM Feb 24, 2021Highest Observation: 9.03 ft at 8:45PM Feb 24, 2021Observed: 8.67 ft at 9:00PM Feb 24, 2021Observed: 8.11 ft at 9:15PM Feb 24, 2021Observed: 7.8 ft at 9:30PM Feb 24, 2021Observed: 7.61 ft at 9:45PM Feb 24, 2021Observed: 7.49 ft at 10:00PM Feb 24, 2021Observed: 7.43 ft at 10:15PM Feb 24, 2021Observed: 7.37 ft at 10:30PM Feb 24, 2021Observed: 7.35 ft at 10:45PM Feb 24, 2021Observed: 7.33 ft at 11:00PM Feb 24, 2021Observed: 7.3 ft at 11:15PM Feb 24, 2021Observed: 7.3 ft at 11:30PM Feb 24, 2021Observed: 7.3 ft at 11:45PM Feb 24, 2021Observed: 7.29 ft at 12:00AM Feb 25, 2021Observed: 6.99 ft at 12:15AM Feb 25, 2021Observed: 6.63 ft at 12:30AM Feb 25, 2021Observed: 6.43 ft at 12:45AM Feb 25, 2021Observed: 6.3 ft at 1:00AM Feb 25, 2021Observed: 6.21 ft at 1:15AM Feb 25, 2021Observed: 6.17 ft at 1:30AM Feb 25, 2021Observed: 6.16 ft at 1:45AM Feb 25, 2021Observed: 6.12 ft at 2:00AM Feb 25, 2021Observed: 6.13 ft at 2:15AM Feb 25, 2021Observed: 6.11 ft at 2:30AM Feb 25, 2021Observed: 6.1 ft at 2:45AM Feb 25, 2021Observed: 6.11 ft at 3:00AM Feb 25, 2021Observed: 6.11 ft at 3:15AM Feb 25, 2021Observed: 6.1 ft at 3:30AM Feb 25, 2021Observed: 6.1 ft at 3:45AM Feb 25, 2021Observed: 6.11 ft at 4:00AM Feb 25, 2021Observed: 6.1 ft at 4:15AM Feb 25, 2021Observed: 6.09 ft at 4:30AM Feb 25, 2021Observed: 6.1 ft at 4:45AM Feb 25, 2021Observed: 6.1 ft at 5:00AM Feb 25, 2021Observed: 6.11 ft at 5:15AM Feb 25, 2021Observed: 6.09 ft at 5:30AM Feb 25, 2021Observed: 6.1 ft at 5:45AM Feb 25, 2021Observed: 6.1 ft at 6:00AM Feb 25, 2021Observed: 6.1 ft at 6:15AM Feb 25, 2021Observed: 6.11 ft at 6:30AM Feb 25, 2021Observed: 6.11 ft at 6:45AM Feb 25, 2021Observed: 6.11 ft at 7:00AM Feb 25, 2021Observed: 6.1 ft at 7:15AM Feb 25, 2021Observed: 6.1 ft at 7:30AM Feb 25, 2021Observed: 6.31 ft at 7:45AM Feb 25, 2021Observed: 7.34 ft at 8:00AM Feb 25, 2021Observed: 8.07 ft at 8:15AM Feb 25, 2021Observed: 8.41 ft at 8:30AM Feb 25, 2021Observed: 8.61 ft at 8:45AM Feb 25, 2021Observed: 8.73 ft at 9:00AM Feb 25, 2021Observed: 8.81 ft at 9:15AM Feb 25, 2021Observed: 8.85 ft at 9:30AM Feb 25, 2021Observed: 8.88 ft at 9:45AM Feb 25, 2021Observed: 8.72 ft at 10:00AM Feb 25, 2021Observed: 7.71 ft at 10:15AM Feb 25, 2021Observed: 7.05 ft at 10:30AM Feb 25, 2021Observed: 6.64 ft at 10:45AM Feb 25, 2021Observed: 6.38 ft at 11:00AM Feb 25, 2021Observed: 6.23 ft at 11:15AM Feb 25, 2021Observed: 6.12 ft at 11:30AM Feb 25, 2021Observed: 6.08 ft at 11:45AM Feb 25, 2021Observed: 6.05 ft at 12:00PM Feb 25, 2021Observed: 6.02 ft at 12:15PM Feb 25, 2021Observed: 6.02 ft at 12:30PM Feb 25, 2021Observed: 6.01 ft at 12:45PM Feb 25, 2021Observed: 6 ft at 1:00PM Feb 25, 2021Observed: 6 ft at 1:15PM Feb 25, 2021Observed: 6 ft at 1:30PM Feb 25, 2021Observed: 5.99 ft at 1:45PM Feb 25, 2021Observed: 6 ft at 2:00PM Feb 25, 2021Observed: 5.98 ft at 2:15PM Feb 25, 2021Observed: 5.99 ft at 2:30PM Feb 25, 2021Observed: 5.99 ft at 2:45PM Feb 25, 2021Observed: 6.07 ft at 3:00PM Feb 25, 2021Observed: 6.15 ft at 3:15PM Feb 25, 2021Observed: 6.2 ft at 3:30PM Feb 25, 2021Observed: 6.24 ft at 3:45PM Feb 25, 2021Observed: 6.25 ft at 4:00PM Feb 25, 2021Observed: 6.26 ft at 4:15PM Feb 25, 2021Observed: 6.28 ft at 4:30PM Feb 25, 2021Observed: 6.32 ft at 4:45PM Feb 25, 2021Observed: 6.94 ft at 5:00PM Feb 25, 2021Observed: 7.95 ft at 5:15PM Feb 25, 2021Observed: 8.38 ft at 5:30PM Feb 25, 2021Observed: 8.59 ft at 5:45PM Feb 25, 2021Observed: 8.72 ft at 6:00PM Feb 25, 2021Observed: 8.8 ft at 6:15PM Feb 25, 2021Observed: 8.86 ft at 6:30PM Feb 25, 2021Observed: 8.91 ft at 6:45PM Feb 25, 2021Observed: 8.93 ft at 7:00PM Feb 25, 2021Observed: 8.95 ft at 7:15PM Feb 25, 2021Observed: 8.96 ft at 7:30PM Feb 25, 2021Observed: 8.96 ft at 7:45PM Feb 25, 2021Observed: 8.97 ft at 8:00PM Feb 25, 2021Observed: 8.98 ft at 8:15PM Feb 25, 2021Observed: 8.99 ft at 8:30PM Feb 25, 2021Forecast: 6.4 ft 1:00AM Feb 26, 2021Highest Forecast: 8.9 ft 7:00AM Feb 26, 2021Forecast: 6.6 ft 1:00PM Feb 26, 2021Forecast: 6.6 ft 7:00PM Feb 26, 2021Forecast: 7.3 ft 1:00AM Feb 27, 2021Forecast: 7.4 ft 7:00AM Feb 27, 2021Forecast: 7.4 ft 1:00PM Feb 27, 2021Forecast: 7.4 ft 7:00PM Feb 27, 2021Forecast: 7.4 ft 1:00AM Feb 28, 2021Forecast: 7.5 ft 7:00AM Feb 28, 2021USGS--Water Resources of the United StatesWLPN3(plotting HGIRG) Graph Created (9:06PM Feb 25, 2021)ObservedForecast (issued 10:53AM Feb 25)Latest observed value: 8.99 ft at 8:30 PM EST 25-Feb-2021. Flood Stage is 28 ft
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About this graph
Tabular Data (UTC)
Tabular Data (EST)
XML Data
RSS Files
Datum: Not Available
Metadata
NOTE: Gauge reading affected by power generation.

NOTE: Forecasts for the Connecticut River at North Walpole are issued routinely year-round.

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Upstream Gauge - at West Lebanon Upstream Gauge Downstream Gauge Downstream Gauge - at Montague
Flood Categories (in feet)
Major Flood Stage: 35
Moderate Flood Stage: 32
Flood Stage: 28
Action Stage: 26
Low Stage (in feet): -9999

Historic Crests
(1) 43.80 ft on 03/19/1936
(2) 39.10 ft on 09/22/1938
(3) 31.38 ft on 08/29/2011
(4) 30.37 ft on 03/27/1953
(5) 29.85 ft on 04/05/1960
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 31.38 ft on 08/29/2011
(2) 25.31 ft on 04/23/2001
(3) 25.75 ft on 04/01/1998
(4) 24.15 ft on 05/13/1996
(5) 16.75 ft on 01/18/1995
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
Currently none available.

For more information on your flood risk go to www.floodsmart.gov.

Zoom Level:16
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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
52.3 Maximum reportable stage of river gage.
38 This is a life threatening flood. Flooding of this magnitude has not been experienced since the Great New England Hurricane of 1938.
36 This is a life threatening flood. Flooding of this magnitude has not been experienced since the Great New England Hurricane of 1938.
34 Low lying areas along the river from Walpole to Hinsdale are flooded. Roadways bordering the river may be impassable including stretches of Route 5 in southern Vermont.
32 Extensive flooding occurs along stretches of Route 5, especially in Westminster, affecting homes and businesses.
31 Low lying businesses and residences from Walpole and Westminster to the Massachusetts border experience flooding along the river. Significant flooding occurs along route 5 in Vermont, especially in Westminster. Bridges crossing the river may be shut down. Backwater flooding may occcur along tributary streams.
29 Route 5 is inundated with up to 1 foot of water in sections of Westminster. Minor flooding of some farmland along the river occurs from Walpole south to the Massachusetts border.
28 Minor flooding affects low lying areas along the river from Walpole and Westminster downstream to the Massachusetts border. Portions of low lying roads along the river are affected including Route 5 and some adjacent businesses in Westminster. Farming interests along the river may experience flooding.
About This Location Collapse

Latitude: 43.126111° N, Longitude: 72.437222° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame
Gauge Height Flood Stage Uses
NWS stage 0 ft 28 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 Not Available Not Available Older USGS topographic maps, NGVD29 benchmarks
MSL Not Available Not Available Older USGS topographic maps, MSL benchmarks
Other NULL NULL  

Current/Historical Observations:

Additional Information Collapse
Potential River Levels - Used to
Potential River Levels
Used to Estimate the Chance of Flooding and the Range of Possible River Levels
10 Day (HEFS) 7 Day (NAEFS) 7 Day (GEFS)
HEFS Ensemble NAEFS Ensemble GEFS Ensemble

Note: Use the official hydrograph at the top of this web page for river levels within the next 72 hours.

Click individual graphics to enlarge.

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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
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: 2-Nov-2020 7:30 PM
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