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Hydrograph River at a Glance Download
Pemigewasset River at Plymouth Stage (ft)Flow (kcfs)Observed: 1.23 ft at 1:00PM Dec 08, 2019Observed: 1.25 ft at 1:15PM Dec 08, 2019Observed: 1.27 ft at 1:30PM Dec 08, 2019Observed: 1.29 ft at 1:45PM Dec 08, 2019Observed: 1.32 ft at 2:00PM Dec 08, 2019Observed: 1.34 ft at 2:15PM Dec 08, 2019Observed: 1.35 ft at 2:30PM Dec 08, 2019Observed: 1.36 ft at 2:45PM Dec 08, 2019Observed: 1.37 ft at 3:00PM Dec 08, 2019Observed: 1.38 ft at 3:15PM Dec 08, 2019Observed: 1.39 ft at 3:30PM Dec 08, 2019Observed: 1.4 ft at 3:45PM Dec 08, 2019Observed: 1.41 ft at 4:00PM Dec 08, 2019Observed: 1.42 ft at 4:15PM Dec 08, 2019Observed: 1.44 ft at 4:30PM Dec 08, 2019Observed: 1.44 ft at 4:45PM Dec 08, 2019Observed: 1.44 ft at 5:00PM Dec 08, 2019Observed: 1.44 ft at 5:15PM Dec 08, 2019Observed: 1.44 ft at 5:30PM Dec 08, 2019Observed: 1.42 ft at 5:45PM Dec 08, 2019Observed: 1.42 ft at 6:00PM Dec 08, 2019Observed: 1.4 ft at 6:15PM Dec 08, 2019Observed: 1.39 ft at 6:30PM Dec 08, 2019Observed: 1.38 ft at 6:45PM Dec 08, 2019Observed: 1.37 ft at 7:00PM Dec 08, 2019Observed: 1.36 ft at 7:15PM Dec 08, 2019Observed: 1.35 ft at 7:30PM Dec 08, 2019Observed: 1.34 ft at 7:45PM Dec 08, 2019Observed: 1.34 ft at 8:00PM Dec 08, 2019Observed: 1.33 ft at 8:15PM Dec 08, 2019Observed: 1.33 ft at 8:16PM Dec 08, 2019Observed: 1.33 ft at 8:30PM Dec 08, 2019Observed: 1.32 ft at 8:45PM Dec 08, 2019Observed: 1.32 ft at 9:00PM Dec 08, 2019Observed: 1.32 ft at 9:15PM Dec 08, 2019Observed: 1.32 ft at 9:30PM Dec 08, 2019Observed: 1.33 ft at 9:45PM Dec 08, 2019Observed: 1.33 ft at 10:00PM Dec 08, 2019Observed: 1.34 ft at 10:15PM Dec 08, 2019Observed: 1.34 ft at 10:30PM Dec 08, 2019Observed: 1.35 ft at 10:45PM Dec 08, 2019Observed: 1.36 ft at 11:00PM Dec 08, 2019Observed: 1.36 ft at 11:15PM Dec 08, 2019Observed: 1.37 ft at 11:30PM Dec 08, 2019Observed: 1.38 ft at 11:45PM Dec 08, 2019Observed: 1.38 ft at 12:00AM Dec 09, 2019Observed: 1.38 ft at 12:15AM Dec 09, 2019Observed: 1.39 ft at 12:30AM Dec 09, 2019Observed: 1.39 ft at 12:45AM Dec 09, 2019Observed: 1.4 ft at 1:00AM Dec 09, 2019Observed: 1.4 ft at 1:15AM Dec 09, 2019Observed: 1.41 ft at 1:30AM Dec 09, 2019Observed: 1.42 ft at 1:45AM Dec 09, 2019Observed: 1.42 ft at 2:00AM Dec 09, 2019Observed: 1.43 ft at 2:15AM Dec 09, 2019Observed: 1.43 ft at 2:16AM Dec 09, 2019Observed: 1.43 ft at 2:30AM Dec 09, 2019Observed: 1.44 ft at 2:45AM Dec 09, 2019Observed: 1.44 ft at 3:00AM Dec 09, 2019Observed: 1.45 ft at 3:15AM Dec 09, 2019Observed: 1.45 ft at 3:30AM Dec 09, 2019Observed: 1.46 ft at 3:45AM Dec 09, 2019Observed: 1.46 ft at 4:00AM Dec 09, 2019Observed: 1.46 ft at 4:15AM Dec 09, 2019Observed: 1.47 ft at 4:30AM Dec 09, 2019Observed: 1.47 ft at 4:45AM Dec 09, 2019Observed: 1.49 ft at 5:00AM Dec 09, 2019Observed: 1.49 ft at 5:15AM Dec 09, 2019Observed: 1.49 ft at 5:30AM Dec 09, 2019Observed: 1.49 ft at 5:45AM Dec 09, 2019Observed: 1.5 ft at 6:00AM Dec 09, 2019Observed: 1.5 ft at 6:15AM Dec 09, 2019Observed: 1.5 ft at 6:30AM Dec 09, 2019Observed: 1.5 ft at 6:45AM Dec 09, 2019Observed: 1.5 ft at 7:00AM Dec 09, 2019Observed: 1.5 ft at 7:15AM Dec 09, 2019Observed: 1.5 ft at 7:30AM Dec 09, 2019Observed: 1.5 ft at 7:45AM Dec 09, 2019Observed: 1.51 ft at 8:00AM Dec 09, 2019Observed: 1.51 ft at 8:15AM Dec 09, 2019Observed: 1.51 ft at 8:16AM Dec 09, 2019Observed: 1.51 ft at 8:30AM Dec 09, 2019Observed: 1.51 ft at 8:45AM Dec 09, 2019Observed: 1.51 ft at 9:00AM Dec 09, 2019Observed: 1.51 ft at 9:15AM Dec 09, 2019Observed: 1.51 ft at 9:30AM Dec 09, 2019Observed: 1.52 ft at 9:45AM Dec 09, 2019Observed: 1.51 ft at 10:00AM Dec 09, 2019Observed: 1.51 ft at 10:15AM Dec 09, 2019Observed: 1.51 ft at 10:30AM Dec 09, 2019Observed: 1.51 ft at 10:45AM Dec 09, 2019Observed: 1.51 ft at 11:00AM Dec 09, 2019Observed: 1.51 ft at 11:15AM Dec 09, 2019Observed: 1.51 ft at 11:30AM Dec 09, 2019Observed: 1.51 ft at 11:45AM Dec 09, 2019Observed: 1.52 ft at 12:00PM Dec 09, 2019Observed: 1.52 ft at 12:15PM Dec 09, 2019Observed: 1.52 ft at 12:30PM Dec 09, 2019Observed: 1.52 ft at 12:45PM Dec 09, 2019Observed: 1.52 ft at 1:00PM Dec 09, 2019Observed: 1.52 ft at 1:15PM Dec 09, 2019Observed: 1.52 ft at 1:30PM Dec 09, 2019Observed: 1.52 ft at 1:45PM Dec 09, 2019Observed: 1.52 ft at 2:00PM Dec 09, 2019Observed: 1.52 ft at 2:15PM Dec 09, 2019Observed: 1.52 ft at 2:16PM Dec 09, 2019Observed: 1.52 ft at 2:30PM Dec 09, 2019Observed: 1.51 ft at 2:45PM Dec 09, 2019Observed: 1.51 ft at 3:00PM Dec 09, 2019Observed: 1.51 ft at 3:15PM Dec 09, 2019Observed: 1.49 ft at 3:30PM Dec 09, 2019Observed: 1.5 ft at 3:45PM Dec 09, 2019Observed: 1.5 ft at 4:00PM Dec 09, 2019Observed: 1.51 ft at 4:15PM Dec 09, 2019Observed: 1.51 ft at 4:30PM Dec 09, 2019Observed: 1.51 ft at 4:45PM Dec 09, 2019Observed: 1.51 ft at 5:00PM Dec 09, 2019Observed: 1.52 ft at 5:15PM Dec 09, 2019Observed: 1.52 ft at 5:30PM Dec 09, 2019Observed: 1.52 ft at 5:45PM Dec 09, 2019Observed: 1.55 ft at 6:00PM Dec 09, 2019Observed: 1.52 ft at 6:15PM Dec 09, 2019Observed: 1.56 ft at 6:30PM Dec 09, 2019Observed: 1.58 ft at 6:45PM Dec 09, 2019Observed: 1.59 ft at 7:00PM Dec 09, 2019Observed: 1.59 ft at 7:15PM Dec 09, 2019Observed: 1.59 ft at 7:30PM Dec 09, 2019Observed: 1.59 ft at 7:45PM Dec 09, 2019Observed: 1.59 ft at 8:00PM Dec 09, 2019Observed: 1.59 ft at 8:15PM Dec 09, 2019Observed: 1.59 ft at 8:16PM Dec 09, 2019Observed: 1.6 ft at 8:30PM Dec 09, 2019Observed: 1.6 ft at 8:45PM Dec 09, 2019Observed: 1.6 ft at 9:00PM Dec 09, 2019Observed: 1.61 ft at 9:15PM Dec 09, 2019Observed: 1.61 ft at 9:30PM Dec 09, 2019Observed: 1.62 ft at 9:45PM Dec 09, 2019Observed: 1.62 ft at 10:00PM Dec 09, 2019Observed: 1.62 ft at 10:15PM Dec 09, 2019Observed: 1.61 ft at 10:30PM Dec 09, 2019Observed: 1.6 ft at 10:45PM Dec 09, 2019Observed: 1.59 ft at 11:00PM Dec 09, 2019Observed: 1.59 ft at 11:15PM Dec 09, 2019Observed: 1.58 ft at 11:30PM Dec 09, 2019Observed: 1.58 ft at 11:45PM Dec 09, 2019Observed: 1.58 ft at 12:00AM Dec 10, 2019Observed: 1.59 ft at 12:15AM Dec 10, 2019Observed: 1.59 ft at 12:30AM Dec 10, 2019Observed: 1.6 ft at 12:45AM Dec 10, 2019Observed: 1.62 ft at 1:00AM Dec 10, 2019Observed: 1.63 ft at 1:15AM Dec 10, 2019Observed: 1.64 ft at 1:30AM Dec 10, 2019Observed: 1.66 ft at 1:45AM Dec 10, 2019Observed: 1.68 ft at 2:00AM Dec 10, 2019Observed: 1.71 ft at 2:15AM Dec 10, 2019Observed: 1.74 ft at 2:30AM Dec 10, 2019Observed: 1.74 ft at 2:45AM Dec 10, 2019Observed: 1.75 ft at 3:00AM Dec 10, 2019Observed: 1.77 ft at 3:15AM Dec 10, 2019Observed: 1.78 ft at 3:30AM Dec 10, 2019Observed: 1.81 ft at 3:45AM Dec 10, 2019Observed: 1.82 ft at 4:00AM Dec 10, 2019Observed: 1.86 ft at 4:15AM Dec 10, 2019Observed: 1.9 ft at 4:30AM Dec 10, 2019Observed: 1.92 ft at 4:45AM Dec 10, 2019Observed: 1.96 ft at 5:00AM Dec 10, 2019Observed: 2.02 ft at 5:15AM Dec 10, 2019Observed: 2.07 ft at 5:30AM Dec 10, 2019Observed: 2.13 ft at 5:45AM Dec 10, 2019Observed: 2.19 ft at 6:00AM Dec 10, 2019Observed: 2.23 ft at 6:15AM Dec 10, 2019Observed: 2.26 ft at 6:30AM Dec 10, 2019Observed: 2.35 ft at 6:45AM Dec 10, 2019Observed: 2.42 ft at 7:00AM Dec 10, 2019Observed: 2.5 ft at 7:15AM Dec 10, 2019Observed: 2.59 ft at 7:30AM Dec 10, 2019Observed: 2.66 ft at 7:45AM Dec 10, 2019Observed: 2.75 ft at 8:00AM Dec 10, 2019Observed: 2.82 ft at 8:15AM Dec 10, 2019Observed: 2.82 ft at 8:16AM Dec 10, 2019Observed: 2.89 ft at 8:30AM Dec 10, 2019Observed: 2.95 ft at 8:45AM Dec 10, 2019Observed: 3 ft at 9:00AM Dec 10, 2019Observed: 3.08 ft at 9:15AM Dec 10, 2019Observed: 3.13 ft at 9:30AM Dec 10, 2019Observed: 3.21 ft at 9:45AM Dec 10, 2019Observed: 3.27 ft at 10:00AM Dec 10, 2019Observed: 3.32 ft at 10:15AM Dec 10, 2019Observed: 3.38 ft at 10:30AM Dec 10, 2019Observed: 3.42 ft at 10:45AM Dec 10, 2019Observed: 3.45 ft at 11:00AM Dec 10, 2019Observed: 3.5 ft at 11:15AM Dec 10, 2019Observed: 3.54 ft at 11:30AM Dec 10, 2019Observed: 3.57 ft at 11:45AM Dec 10, 2019Observed: 3.59 ft at 12:00PM Dec 10, 2019Observed: 3.62 ft at 12:15PM Dec 10, 2019Observed: 3.64 ft at 12:30PM Dec 10, 2019Observed: 3.65 ft at 12:45PM Dec 10, 2019Observed: 3.66 ft at 1:00PM Dec 10, 2019Observed: 3.69 ft at 1:15PM Dec 10, 2019Observed: 3.7 ft at 1:30PM Dec 10, 2019Observed: 3.7 ft at 1:45PM Dec 10, 2019Observed: 3.71 ft at 2:00PM Dec 10, 2019Observed: 3.72 ft at 2:15PM Dec 10, 2019Observed: 3.72 ft at 2:16PM Dec 10, 2019Observed: 3.73 ft at 2:30PM Dec 10, 2019Observed: 3.74 ft at 2:45PM Dec 10, 2019Observed: 3.74 ft at 3:00PM Dec 10, 2019Observed: 3.75 ft at 3:15PM Dec 10, 2019Observed: 3.76 ft at 3:30PM Dec 10, 2019Observed: 3.75 ft at 3:45PM Dec 10, 2019Observed: 3.75 ft at 4:00PM Dec 10, 2019Observed: 3.75 ft at 4:15PM Dec 10, 2019Observed: 3.76 ft at 4:30PM Dec 10, 2019Observed: 3.76 ft at 4:45PM Dec 10, 2019Observed: 3.76 ft at 5:00PM Dec 10, 2019Observed: 3.76 ft at 5:15PM Dec 10, 2019Observed: 3.76 ft at 5:30PM Dec 10, 2019Observed: 3.76 ft at 5:45PM Dec 10, 2019Observed: 3.76 ft at 6:00PM Dec 10, 2019Observed: 3.77 ft at 6:15PM Dec 10, 2019Observed: 3.77 ft at 6:30PM Dec 10, 2019Observed: 3.77 ft at 6:45PM Dec 10, 2019Observed: 3.78 ft at 7:00PM Dec 10, 2019Observed: 3.78 ft at 7:15PM Dec 10, 2019Observed: 3.78 ft at 7:30PM Dec 10, 2019Observed: 3.78 ft at 7:45PM Dec 10, 2019Observed: 3.79 ft at 8:00PM Dec 10, 2019Observed: 3.8 ft at 8:15PM Dec 10, 2019Observed: 3.8 ft at 8:16PM Dec 10, 2019Observed: 3.8 ft at 8:30PM Dec 10, 2019Observed: 3.82 ft at 8:45PM Dec 10, 2019Observed: 3.83 ft at 9:00PM Dec 10, 2019Observed: 3.84 ft at 9:15PM Dec 10, 2019Observed: 3.86 ft at 9:30PM Dec 10, 2019Observed: 3.87 ft at 9:45PM Dec 10, 2019Observed: 3.89 ft at 10:00PM Dec 10, 2019Observed: 3.91 ft at 10:15PM Dec 10, 2019Observed: 3.94 ft at 10:30PM Dec 10, 2019Observed: 3.96 ft at 10:45PM Dec 10, 2019Observed: 3.98 ft at 11:00PM Dec 10, 2019Observed: 4 ft at 11:15PM Dec 10, 2019Observed: 4.04 ft at 11:30PM Dec 10, 2019Observed: 4.06 ft at 11:45PM Dec 10, 2019Observed: 4.1 ft at 12:00AM Dec 11, 2019Observed: 4.12 ft at 12:15AM Dec 11, 2019Observed: 4.15 ft at 12:30AM Dec 11, 2019Observed: 4.17 ft at 12:45AM Dec 11, 2019Observed: 4.21 ft at 1:00AM Dec 11, 2019Observed: 4.23 ft at 1:15AM Dec 11, 2019Observed: 4.25 ft at 1:30AM Dec 11, 2019Observed: 4.28 ft at 1:45AM Dec 11, 2019Observed: 4.31 ft at 2:00AM Dec 11, 2019Observed: 4.33 ft at 2:15AM Dec 11, 2019Observed: 4.33 ft at 2:16AM Dec 11, 2019Observed: 4.35 ft at 2:30AM Dec 11, 2019Observed: 4.36 ft at 2:45AM Dec 11, 2019Observed: 4.39 ft at 3:00AM Dec 11, 2019Observed: 4.39 ft at 3:15AM Dec 11, 2019Observed: 4.4 ft at 3:30AM Dec 11, 2019Observed: 4.41 ft at 3:45AM Dec 11, 2019Highest Observation: 4.42 ft at 4:00AM Dec 11, 2019Observed: 4.4 ft at 4:15AM Dec 11, 2019Observed: 4.41 ft at 4:30AM Dec 11, 2019Observed: 4.4 ft at 4:45AM Dec 11, 2019Observed: 4.4 ft at 5:00AM Dec 11, 2019Observed: 4.39 ft at 5:15AM Dec 11, 2019Observed: 4.39 ft at 5:30AM Dec 11, 2019Observed: 4.38 ft at 5:45AM Dec 11, 2019Observed: 4.36 ft at 6:00AM Dec 11, 2019Observed: 4.34 ft at 6:15AM Dec 11, 2019Observed: 4.32 ft at 6:30AM Dec 11, 2019Observed: 4.3 ft at 6:45AM Dec 11, 2019Observed: 4.27 ft at 7:00AM Dec 11, 2019Observed: 4.26 ft at 7:15AM Dec 11, 2019Observed: 4.23 ft at 7:30AM Dec 11, 2019Observed: 4.2 ft at 7:45AM Dec 11, 2019Observed: 4.18 ft at 8:00AM Dec 11, 2019Observed: 4.15 ft at 8:15AM Dec 11, 2019Observed: 4.15 ft at 8:16AM Dec 11, 2019Observed: 4.12 ft at 8:30AM Dec 11, 2019Observed: 4.1 ft at 8:45AM Dec 11, 2019Observed: 4.08 ft at 9:00AM Dec 11, 2019Observed: 4.05 ft at 9:15AM Dec 11, 2019Observed: 4.02 ft at 9:30AM Dec 11, 2019Observed: 4 ft at 9:45AM Dec 11, 2019Observed: 3.96 ft at 10:00AM Dec 11, 2019Observed: 3.94 ft at 10:15AM Dec 11, 2019Observed: 3.91 ft at 10:30AM Dec 11, 2019Observed: 3.89 ft at 10:45AM Dec 11, 2019Observed: 3.86 ft at 11:00AM Dec 11, 2019Observed: 3.84 ft at 11:15AM Dec 11, 2019Observed: 3.8 ft at 11:30AM Dec 11, 2019Highest Forecast: 3.9 ft 1:00PM Dec 11, 2019Forecast: 3.6 ft 7:00PM Dec 11, 2019Forecast: 3.3 ft 1:00AM Dec 12, 2019Forecast: 3.1 ft 7:00AM Dec 12, 2019Forecast: 2.9 ft 1:00PM Dec 12, 2019Forecast: 2.8 ft 7:00PM Dec 12, 2019Forecast: 2.6 ft 1:00AM Dec 13, 2019Forecast: 2.5 ft 7:00AM Dec 13, 2019Forecast: 2.4 ft 1:00PM Dec 13, 2019Forecast: 2.3 ft 7:00PM Dec 13, 2019Forecast: 2.2 ft 1:00AM Dec 14, 2019Forecast: 2.2 ft 7:00AM Dec 14, 2019USGS--Water Resources of the United StatesPLMN3(plotting HGIRG) Graph Created (12:50PM Dec 11, 2019)ObservedForecast (issued 11:21AM Dec 11)Latest observed value: 3.8 ft at 11:30 AM EST 11-Dec-2019. Flood Stage is 13 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 Pemigewasset River at Plymouth are issued routinely year-round.
Return to Area Map
Upstream Gauge - at Woodstock Upstream Gauge
Flood Categories (in feet)
Major Flood Stage: 21
Moderate Flood Stage: 18
Flood Stage: 13
Action Stage: 10
Low Stage (in feet): -9999

Historic Crests
(1) 29.00 ft on 03/19/1936
(2) 27.40 ft on 11/04/1927
(3) 23.62 ft on 09/21/1938
(4) 23.43 ft on 04/01/1987
(5) 22.68 ft on 10/25/1959
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 19.77 ft on 10/30/2017
(2) 16.21 ft on 07/02/2017
(3) 21.69 ft on 08/29/2011
(4) 13.38 ft on 04/29/2008
(5) 13.55 ft on 10/29/2006
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
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
22 5 to 6 feet of water on route 175A in Holderness
20.1 Water at the doors of the PSU physical education center. Water at the doors of the PSU ice arena
18 South River Road and Avery Street flooded in Holderness
15.5 Water over the road at Irving station on route 175A in Holderness
15 Water up to road at Irving station on route 175A in Holderness
14 Water entering parking lot behind PSU ice arena
13 Minor lowland flooding
About This Location Collapse

Latitude: 43.759239° N, Longitude: 71.685600° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame
Gauge Height Flood Stage Uses
NWS stage 0 ft 13 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 29 457.07 ft 470.07 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:

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

Note: Use the official hydrograph at the top of this web page for river levels within the next 48 hours.

See the Product Description Document link for more details on the interpretation of the 3,7 day graphics. 

Click individual graphics to enlarge.

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
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: 1-Mar-2019 12:35 AM
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