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Hydrograph River at a Glance Download
Pemigewasset River at Plymouth Stage (ft)Flow (kcfs)Highest Observation: 0.97 ft at 2:45AM Aug 28, 2014Highest Observation: 0.97 ft at 3:00AM Aug 28, 2014Highest Observation: 0.97 ft at 3:15AM Aug 28, 2014Highest Observation: 0.97 ft at 3:30AM Aug 28, 2014Highest Observation: 0.97 ft at 3:45AM Aug 28, 2014Highest Observation: 0.97 ft at 4:00AM Aug 28, 2014Highest Observation: 0.97 ft at 4:15AM Aug 28, 2014Highest Observation: 0.97 ft at 4:30AM Aug 28, 2014Highest Observation: 0.97 ft at 4:45AM Aug 28, 2014Highest Observation: 0.97 ft at 5:00AM Aug 28, 2014Highest Observation: 0.97 ft at 5:15AM Aug 28, 2014Highest Observation: 0.97 ft at 5:30AM Aug 28, 2014Highest Observation: 0.97 ft at 5:45AM Aug 28, 2014Highest Observation: 0.97 ft at 6:00AM Aug 28, 2014Highest Observation: 0.97 ft at 6:15AM Aug 28, 2014Observed: 0.96 ft at 6:30AM Aug 28, 2014Observed: 0.96 ft at 6:45AM Aug 28, 2014Observed: 0.96 ft at 7:00AM Aug 28, 2014Observed: 0.96 ft at 7:01AM Aug 28, 2014Observed: 0.96 ft at 7:15AM Aug 28, 2014Observed: 0.96 ft at 7:30AM Aug 28, 2014Observed: 0.96 ft at 7:45AM Aug 28, 2014Observed: 0.96 ft at 8:00AM Aug 28, 2014Observed: 0.96 ft at 8:15AM Aug 28, 2014Observed: 0.96 ft at 8:30AM Aug 28, 2014Observed: 0.96 ft at 8:45AM Aug 28, 2014Observed: 0.96 ft at 9:00AM Aug 28, 2014Observed: 0.96 ft at 9:15AM Aug 28, 2014Observed: 0.96 ft at 9:30AM Aug 28, 2014Observed: 0.95 ft at 9:45AM Aug 28, 2014Observed: 0.95 ft at 10:00AM Aug 28, 2014Observed: 0.95 ft at 10:15AM Aug 28, 2014Observed: 0.96 ft at 10:30AM Aug 28, 2014Observed: 0.95 ft at 10:45AM Aug 28, 2014Observed: 0.95 ft at 11:00AM Aug 28, 2014Observed: 0.95 ft at 11:15AM Aug 28, 2014Observed: 0.95 ft at 11:30AM Aug 28, 2014Observed: 0.95 ft at 11:45AM Aug 28, 2014Observed: 0.95 ft at 12:00PM Aug 28, 2014Observed: 0.95 ft at 12:15PM Aug 28, 2014Observed: 0.95 ft at 12:30PM Aug 28, 2014Observed: 0.95 ft at 12:45PM Aug 28, 2014Observed: 0.95 ft at 1:00PM Aug 28, 2014Observed: 0.95 ft at 1:01PM Aug 28, 2014Observed: 0.95 ft at 1:15PM Aug 28, 2014Observed: 0.95 ft at 1:30PM Aug 28, 2014Observed: 0.95 ft at 1:45PM Aug 28, 2014Observed: 0.94 ft at 2:00PM Aug 28, 2014Observed: 0.94 ft at 2:15PM Aug 28, 2014Observed: 0.94 ft at 2:30PM Aug 28, 2014Observed: 0.94 ft at 2:45PM Aug 28, 2014Observed: 0.94 ft at 3:00PM Aug 28, 2014Observed: 0.94 ft at 3:15PM Aug 28, 2014Observed: 0.94 ft at 3:30PM Aug 28, 2014Observed: 0.94 ft at 3:45PM Aug 28, 2014Observed: 0.94 ft at 4:00PM Aug 28, 2014Observed: 0.93 ft at 4:15PM Aug 28, 2014Observed: 0.93 ft at 4:30PM Aug 28, 2014Observed: 0.93 ft at 4:45PM Aug 28, 2014Observed: 0.93 ft at 5:00PM Aug 28, 2014Observed: 0.93 ft at 5:15PM Aug 28, 2014Observed: 0.93 ft at 5:30PM Aug 28, 2014Observed: 0.93 ft at 5:45PM Aug 28, 2014Observed: 0.93 ft at 6:00PM Aug 28, 2014Observed: 0.93 ft at 6:15PM Aug 28, 2014Observed: 0.93 ft at 6:30PM Aug 28, 2014Observed: 0.93 ft at 6:45PM Aug 28, 2014Observed: 0.93 ft at 7:00PM Aug 28, 2014Observed: 0.93 ft at 7:01PM Aug 28, 2014Observed: 0.93 ft at 7:15PM Aug 28, 2014Observed: 0.93 ft at 7:30PM Aug 28, 2014Observed: 0.93 ft at 7:45PM Aug 28, 2014Observed: 0.93 ft at 8:00PM Aug 28, 2014Observed: 0.93 ft at 8:15PM Aug 28, 2014Observed: 0.93 ft at 8:30PM Aug 28, 2014Observed: 0.93 ft at 8:45PM Aug 28, 2014Observed: 0.93 ft at 9:00PM Aug 28, 2014Observed: 0.93 ft at 9:15PM Aug 28, 2014Observed: 0.93 ft at 9:30PM Aug 28, 2014Observed: 0.93 ft at 9:45PM Aug 28, 2014Observed: 0.93 ft at 10:00PM Aug 28, 2014Observed: 0.93 ft at 10:15PM Aug 28, 2014Observed: 0.93 ft at 10:30PM Aug 28, 2014Observed: 0.93 ft at 10:45PM Aug 28, 2014Observed: 0.93 ft at 11:00PM Aug 28, 2014Observed: 0.93 ft at 11:15PM Aug 28, 2014Observed: 0.93 ft at 11:30PM Aug 28, 2014Observed: 0.93 ft at 11:45PM Aug 28, 2014Observed: 0.93 ft at 12:00AM Aug 29, 2014Observed: 0.93 ft at 12:15AM Aug 29, 2014Observed: 0.93 ft at 12:30AM Aug 29, 2014Observed: 0.93 ft at 12:45AM Aug 29, 2014Observed: 0.93 ft at 1:00AM Aug 29, 2014Observed: 0.93 ft at 1:01AM Aug 29, 2014Observed: 0.93 ft at 1:15AM Aug 29, 2014Observed: 0.93 ft at 1:30AM Aug 29, 2014Observed: 0.93 ft at 1:45AM Aug 29, 2014Observed: 0.93 ft at 2:00AM Aug 29, 2014Observed: 0.93 ft at 2:15AM Aug 29, 2014Observed: 0.93 ft at 2:30AM Aug 29, 2014Observed: 0.93 ft at 2:45AM Aug 29, 2014Observed: 0.93 ft at 3:00AM Aug 29, 2014Observed: 0.93 ft at 3:15AM Aug 29, 2014Observed: 0.93 ft at 3:30AM Aug 29, 2014Observed: 0.93 ft at 3:45AM Aug 29, 2014Observed: 0.93 ft at 4:00AM Aug 29, 2014Observed: 0.92 ft at 4:15AM Aug 29, 2014Observed: 0.92 ft at 4:30AM Aug 29, 2014Observed: 0.92 ft at 4:45AM Aug 29, 2014Observed: 0.92 ft at 5:00AM Aug 29, 2014Observed: 0.92 ft at 5:15AM Aug 29, 2014Observed: 0.92 ft at 5:30AM Aug 29, 2014Observed: 0.92 ft at 5:45AM Aug 29, 2014Observed: 0.92 ft at 6:00AM Aug 29, 2014Observed: 0.92 ft at 6:15AM Aug 29, 2014Observed: 0.92 ft at 6:30AM Aug 29, 2014Observed: 0.92 ft at 6:45AM Aug 29, 2014Observed: 0.92 ft at 7:00AM Aug 29, 2014Observed: 0.92 ft at 7:01AM Aug 29, 2014Observed: 0.92 ft at 7:15AM Aug 29, 2014Observed: 0.92 ft at 7:30AM Aug 29, 2014Observed: 0.92 ft at 7:45AM Aug 29, 2014Observed: 0.92 ft at 8:00AM Aug 29, 2014Observed: 0.92 ft at 8:15AM Aug 29, 2014Observed: 0.92 ft at 8:30AM Aug 29, 2014Observed: 0.92 ft at 8:45AM Aug 29, 2014Observed: 0.92 ft at 9:00AM Aug 29, 2014Observed: 0.91 ft at 9:15AM Aug 29, 2014Observed: 0.91 ft at 9:30AM Aug 29, 2014Observed: 0.91 ft at 9:45AM Aug 29, 2014Observed: 0.91 ft at 10:00AM Aug 29, 2014Observed: 0.91 ft at 10:15AM Aug 29, 2014Observed: 0.91 ft at 10:30AM Aug 29, 2014Observed: 0.91 ft at 10:45AM Aug 29, 2014Observed: 0.91 ft at 11:00AM Aug 29, 2014Observed: 0.91 ft at 11:15AM Aug 29, 2014Observed: 0.91 ft at 11:30AM Aug 29, 2014Observed: 0.91 ft at 11:45AM Aug 29, 2014Observed: 0.91 ft at 12:00PM Aug 29, 2014Observed: 0.91 ft at 12:15PM Aug 29, 2014Observed: 0.91 ft at 12:30PM Aug 29, 2014Observed: 0.92 ft at 12:45PM Aug 29, 2014Observed: 0.91 ft at 1:00PM Aug 29, 2014Observed: 0.91 ft at 1:01PM Aug 29, 2014Observed: 0.91 ft at 1:15PM Aug 29, 2014Observed: 0.91 ft at 1:30PM Aug 29, 2014Observed: 0.91 ft at 1:45PM Aug 29, 2014Observed: 0.91 ft at 2:00PM Aug 29, 2014Observed: 0.91 ft at 2:15PM Aug 29, 2014Observed: 0.91 ft at 2:30PM Aug 29, 2014Observed: 0.91 ft at 2:45PM Aug 29, 2014Observed: 0.91 ft at 3:00PM Aug 29, 2014Observed: 0.91 ft at 3:15PM Aug 29, 2014Observed: 0.91 ft at 3:30PM Aug 29, 2014Observed: 0.91 ft at 3:45PM Aug 29, 2014Observed: 0.91 ft at 4:00PM Aug 29, 2014Observed: 0.91 ft at 4:15PM Aug 29, 2014Observed: 0.91 ft at 4:30PM Aug 29, 2014Observed: 0.91 ft at 4:45PM Aug 29, 2014Observed: 0.91 ft at 5:00PM Aug 29, 2014Observed: 0.91 ft at 5:15PM Aug 29, 2014Observed: 0.91 ft at 5:30PM Aug 29, 2014Observed: 0.91 ft at 5:45PM Aug 29, 2014Observed: 0.91 ft at 6:00PM Aug 29, 2014Observed: 0.91 ft at 6:15PM Aug 29, 2014Observed: 0.91 ft at 6:30PM Aug 29, 2014Observed: 0.91 ft at 6:45PM Aug 29, 2014Observed: 0.91 ft at 7:00PM Aug 29, 2014Observed: 0.91 ft at 7:01PM Aug 29, 2014Observed: 0.91 ft at 7:15PM Aug 29, 2014Observed: 0.91 ft at 7:30PM Aug 29, 2014Observed: 0.91 ft at 7:45PM Aug 29, 2014Observed: 0.91 ft at 8:00PM Aug 29, 2014Observed: 0.91 ft at 8:15PM Aug 29, 2014Observed: 0.91 ft at 8:30PM Aug 29, 2014Observed: 0.91 ft at 8:45PM Aug 29, 2014Observed: 0.91 ft at 9:00PM Aug 29, 2014Observed: 0.91 ft at 9:15PM Aug 29, 2014Observed: 0.91 ft at 9:30PM Aug 29, 2014Observed: 0.91 ft at 9:45PM Aug 29, 2014Observed: 0.91 ft at 10:00PM Aug 29, 2014Observed: 0.91 ft at 10:15PM Aug 29, 2014Observed: 0.91 ft at 10:30PM Aug 29, 2014Observed: 0.91 ft at 10:45PM Aug 29, 2014Observed: 0.91 ft at 11:00PM Aug 29, 2014Observed: 0.91 ft at 11:15PM Aug 29, 2014Observed: 0.91 ft at 11:30PM Aug 29, 2014Observed: 0.91 ft at 11:45PM Aug 29, 2014Observed: 0.91 ft at 12:00AM Aug 30, 2014Observed: 0.91 ft at 12:15AM Aug 30, 2014Observed: 0.91 ft at 12:30AM Aug 30, 2014Observed: 0.9 ft at 1:01AM Aug 30, 2014Observed: 0.91 ft at 1:45AM Aug 30, 2014Observed: 0.91 ft at 2:00AM Aug 30, 2014Observed: 0.9 ft at 2:15AM Aug 30, 2014Observed: 0.9 ft at 2:30AM Aug 30, 2014Observed: 0.9 ft at 2:45AM Aug 30, 2014Observed: 0.9 ft at 3:00AM Aug 30, 2014Observed: 0.9 ft at 3:15AM Aug 30, 2014Observed: 0.9 ft at 3:30AM Aug 30, 2014Observed: 0.9 ft at 3:45AM Aug 30, 2014Observed: 0.9 ft at 4:00AM Aug 30, 2014Observed: 0.9 ft at 4:15AM Aug 30, 2014Observed: 0.9 ft at 4:30AM Aug 30, 2014Observed: 0.9 ft at 4:45AM Aug 30, 2014Observed: 0.9 ft at 5:00AM Aug 30, 2014Observed: 0.9 ft at 5:15AM Aug 30, 2014Observed: 0.9 ft at 5:30AM Aug 30, 2014Observed: 0.9 ft at 5:45AM Aug 30, 2014Observed: 0.9 ft at 6:00AM Aug 30, 2014Observed: 0.9 ft at 6:15AM Aug 30, 2014Observed: 0.9 ft at 6:30AM Aug 30, 2014Observed: 0.9 ft at 6:45AM Aug 30, 2014Observed: 0.9 ft at 7:00AM Aug 30, 2014Observed: 0.9 ft at 7:01AM Aug 30, 2014Observed: 0.9 ft at 7:15AM Aug 30, 2014Observed: 0.9 ft at 7:30AM Aug 30, 2014Observed: 0.9 ft at 7:45AM Aug 30, 2014Observed: 0.9 ft at 8:00AM Aug 30, 2014Observed: 0.9 ft at 8:15AM Aug 30, 2014Observed: 0.9 ft at 8:30AM Aug 30, 2014Observed: 0.9 ft at 8:45AM Aug 30, 2014Observed: 0.9 ft at 9:00AM Aug 30, 2014Observed: 0.89 ft at 9:15AM Aug 30, 2014Observed: 0.89 ft at 9:30AM Aug 30, 2014Observed: 0.89 ft at 9:45AM Aug 30, 2014Observed: 0.89 ft at 10:00AM Aug 30, 2014Observed: 0.89 ft at 10:15AM Aug 30, 2014Observed: 0.89 ft at 10:30AM Aug 30, 2014Observed: 0.89 ft at 10:45AM Aug 30, 2014Observed: 0.89 ft at 11:00AM Aug 30, 2014Observed: 0.89 ft at 11:15AM Aug 30, 2014Observed: 0.89 ft at 11:30AM Aug 30, 2014Observed: 0.89 ft at 11:45AM Aug 30, 2014Observed: 0.89 ft at 12:00PM Aug 30, 2014Observed: 0.89 ft at 12:15PM Aug 30, 2014Observed: 0.89 ft at 12:30PM Aug 30, 2014Observed: 0.89 ft at 12:45PM Aug 30, 2014Observed: 0.89 ft at 1:00PM Aug 30, 2014Observed: 0.89 ft at 1:15PM Aug 30, 2014Observed: 0.89 ft at 1:30PM Aug 30, 2014Observed: 0.89 ft at 1:45PM Aug 30, 2014Observed: 0.89 ft at 2:00PM Aug 30, 2014Observed: 0.89 ft at 2:15PM Aug 30, 2014Observed: 0.89 ft at 2:30PM Aug 30, 2014Observed: 0.89 ft at 2:45PM Aug 30, 2014Observed: 0.89 ft at 3:00PM Aug 30, 2014Observed: 0.89 ft at 3:15PM Aug 30, 2014Observed: 0.89 ft at 3:30PM Aug 30, 2014Observed: 0.89 ft at 3:45PM Aug 30, 2014Observed: 0.89 ft at 4:00PM Aug 30, 2014Observed: 0.89 ft at 4:15PM Aug 30, 2014Observed: 0.89 ft at 4:30PM Aug 30, 2014Observed: 0.89 ft at 4:45PM Aug 30, 2014Observed: 0.88 ft at 5:00PM Aug 30, 2014Observed: 0.89 ft at 5:15PM Aug 30, 2014Observed: 0.89 ft at 5:30PM Aug 30, 2014Observed: 0.89 ft at 5:45PM Aug 30, 2014Observed: 0.89 ft at 6:00PM Aug 30, 2014Observed: 0.89 ft at 6:15PM Aug 30, 2014Observed: 0.88 ft at 6:30PM Aug 30, 2014Observed: 0.88 ft at 6:45PM Aug 30, 2014Observed: 0.88 ft at 7:00PM Aug 30, 2014Observed: 0.88 ft at 7:15PM Aug 30, 2014Observed: 0.88 ft at 7:30PM Aug 30, 2014Observed: 0.88 ft at 7:45PM Aug 30, 2014Observed: 0.88 ft at 8:00PM Aug 30, 2014Observed: 0.88 ft at 8:15PM Aug 30, 2014Observed: 0.88 ft at 8:30PM Aug 30, 2014Observed: 0.88 ft at 8:45PM Aug 30, 2014Observed: 0.88 ft at 9:00PM Aug 30, 2014Observed: 0.88 ft at 9:15PM Aug 30, 2014Observed: 0.88 ft at 9:30PM Aug 30, 2014Observed: 0.88 ft at 9:45PM Aug 30, 2014Observed: 0.88 ft at 10:00PM Aug 30, 2014Observed: 0.88 ft at 10:15PM Aug 30, 2014Observed: 0.88 ft at 10:30PM Aug 30, 2014Observed: 0.88 ft at 10:45PM Aug 30, 2014Observed: 0.88 ft at 11:00PM Aug 30, 2014Observed: 0.88 ft at 11:15PM Aug 30, 2014Observed: 0.88 ft at 11:30PM Aug 30, 2014Observed: 0.88 ft at 11:45PM Aug 30, 2014Observed: 0.88 ft at 12:00AM Aug 31, 2014Observed: 0.88 ft at 12:15AM Aug 31, 2014Observed: 0.88 ft at 12:30AM Aug 31, 2014Observed: 0.88 ft at 12:45AM Aug 31, 2014Observed: 0.88 ft at 1:00AM Aug 31, 2014Observed: 0.88 ft at 1:01AM Aug 31, 2014Observed: 0.88 ft at 1:15AM Aug 31, 2014Observed: 0.88 ft at 1:30AM Aug 31, 2014Forecast: 0.9 ft 8:00AM Aug 31, 2014Forecast: 0.9 ft 2:00PM Aug 31, 2014Forecast: 0.9 ft 8:00PM Aug 31, 2014Forecast: 0.9 ft 2:00AM Sep 01, 2014Highest Forecast: 1 ft 8:00AM Sep 01, 2014Highest Forecast: 1 ft 2:00PM Sep 01, 2014Highest Forecast: 1 ft 8:00PM Sep 01, 2014Forecast: 0.9 ft 2:00AM Sep 02, 2014Forecast: 0.8 ft 8:00AM Sep 02, 2014USGS--Water Resources of the United StatesPLMN3(plotting HGIRG) Graph Created (2:33AM Aug 31, 2014)ObservedForecast (issued 11:17AM Aug 30)Latest observed value: 0.88 ft at 1:30 AM EDT 31-Aug-2014. Flood Stage is 13 ft
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About this graph
Tabular Data (UTC)
Tabular Data (EDT)
XML Data
RSS Files
Datum: Not Available
Metadata
NOTE: Forecasts for the Pemigewasset River at Plymouth are issued routinely year-round.
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Upstream Gauge - at Woodstock Upstream Gauge
Flood Categories (in feet)
Major Flood Stage:21
Moderate Flood Stage:18
Flood Stage:13
Action Stage:10

Historical 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
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(P): Preliminary values subject to further review.

Low Water Records
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. BOE STREET FLOODED. PSU FACILITY SERVICE BUILDING FLOODED.
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: 43.759167° N, Longitude: 71.686111° 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:

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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: 27-Aug-2014 7:12 PM
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