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Hydrograph River at a Glance Download
Merrimack River at Goffs Falls Stage (ft)Flow (kcfs)Highest Observation: 7.41 ft at 10:30PM Apr 21, 2014Observed: 7.39 ft at 11:00PM Apr 21, 2014Observed: 7.38 ft at 11:30PM Apr 21, 2014Observed: 7.37 ft at 11:45PM Apr 21, 2014Observed: 7.36 ft at 12:00AM Apr 22, 2014Observed: 7.34 ft at 12:30AM Apr 22, 2014Observed: 7.31 ft at 1:00AM Apr 22, 2014Observed: 7.31 ft at 1:30AM Apr 22, 2014Observed: 7.28 ft at 2:00AM Apr 22, 2014Observed: 7.26 ft at 2:30AM Apr 22, 2014Observed: 7.23 ft at 3:00AM Apr 22, 2014Observed: 7.22 ft at 3:30AM Apr 22, 2014Observed: 7.21 ft at 4:00AM Apr 22, 2014Observed: 7.21 ft at 4:30AM Apr 22, 2014Observed: 7.19 ft at 5:00AM Apr 22, 2014Observed: 7.18 ft at 5:30AM Apr 22, 2014Observed: 7.17 ft at 5:46AM Apr 22, 2014Observed: 7.16 ft at 6:00AM Apr 22, 2014Observed: 7.15 ft at 6:30AM Apr 22, 2014Observed: 7.12 ft at 7:00AM Apr 22, 2014Observed: 7.12 ft at 7:30AM Apr 22, 2014Observed: 7.1 ft at 8:00AM Apr 22, 2014Observed: 7.09 ft at 8:30AM Apr 22, 2014Observed: 7.07 ft at 9:00AM Apr 22, 2014Observed: 7.07 ft at 9:30AM Apr 22, 2014Observed: 7.05 ft at 10:00AM Apr 22, 2014Observed: 7.03 ft at 10:30AM Apr 22, 2014Observed: 6.97 ft at 11:00AM Apr 22, 2014Observed: 6.97 ft at 11:30AM Apr 22, 2014Observed: 7.01 ft at 11:46AM Apr 22, 2014Observed: 7.05 ft at 12:00PM Apr 22, 2014Observed: 7.06 ft at 12:30PM Apr 22, 2014Observed: 7.03 ft at 1:00PM Apr 22, 2014Observed: 7.01 ft at 1:30PM Apr 22, 2014Observed: 6.98 ft at 2:00PM Apr 22, 2014Observed: 6.97 ft at 2:30PM Apr 22, 2014Observed: 6.94 ft at 3:00PM Apr 22, 2014Observed: 6.94 ft at 3:30PM Apr 22, 2014Observed: 6.93 ft at 4:00PM Apr 22, 2014Observed: 6.93 ft at 4:30PM Apr 22, 2014Observed: 6.93 ft at 5:00PM Apr 22, 2014Observed: 6.93 ft at 5:30PM Apr 22, 2014Observed: 6.93 ft at 5:45PM Apr 22, 2014Observed: 6.93 ft at 6:00PM Apr 22, 2014Observed: 6.92 ft at 6:30PM Apr 22, 2014Observed: 6.9 ft at 7:00PM Apr 22, 2014Observed: 6.89 ft at 7:30PM Apr 22, 2014Observed: 6.88 ft at 8:00PM Apr 22, 2014Observed: 6.88 ft at 8:30PM Apr 22, 2014Observed: 6.88 ft at 9:00PM Apr 22, 2014Observed: 6.88 ft at 9:30PM Apr 22, 2014Observed: 6.86 ft at 10:00PM Apr 22, 2014Observed: 6.86 ft at 10:30PM Apr 22, 2014Observed: 6.84 ft at 11:00PM Apr 22, 2014Observed: 6.82 ft at 11:30PM Apr 22, 2014Observed: 6.8 ft at 12:00AM Apr 23, 2014Observed: 6.8 ft at 12:01AM Apr 23, 2014Observed: 6.8 ft at 12:30AM Apr 23, 2014Observed: 6.8 ft at 1:00AM Apr 23, 2014Observed: 6.8 ft at 1:30AM Apr 23, 2014Observed: 6.8 ft at 2:00AM Apr 23, 2014Observed: 6.8 ft at 2:30AM Apr 23, 2014Observed: 6.8 ft at 3:00AM Apr 23, 2014Observed: 6.8 ft at 3:30AM Apr 23, 2014Observed: 6.8 ft at 4:00AM Apr 23, 2014Observed: 6.8 ft at 4:30AM Apr 23, 2014Observed: 6.8 ft at 5:00AM Apr 23, 2014Observed: 6.79 ft at 5:30AM Apr 23, 2014Observed: 6.78 ft at 6:00AM Apr 23, 2014Observed: 6.78 ft at 6:30AM Apr 23, 2014Observed: 6.78 ft at 7:00AM Apr 23, 2014Observed: 6.77 ft at 7:30AM Apr 23, 2014Observed: 6.75 ft at 8:00AM Apr 23, 2014Observed: 6.75 ft at 8:30AM Apr 23, 2014Observed: 6.75 ft at 9:00AM Apr 23, 2014Observed: 6.75 ft at 9:30AM Apr 23, 2014Observed: 6.75 ft at 10:00AM Apr 23, 2014Observed: 6.75 ft at 10:30AM Apr 23, 2014Observed: 6.75 ft at 11:00AM Apr 23, 2014Observed: 6.75 ft at 11:30AM Apr 23, 2014Observed: 6.75 ft at 12:00PM Apr 23, 2014Observed: 6.75 ft at 12:01PM Apr 23, 2014Observed: 6.75 ft at 12:30PM Apr 23, 2014Observed: 6.75 ft at 1:00PM Apr 23, 2014Observed: 6.76 ft at 1:30PM Apr 23, 2014Observed: 6.76 ft at 2:00PM Apr 23, 2014Observed: 6.76 ft at 2:30PM Apr 23, 2014Observed: 6.76 ft at 3:00PM Apr 23, 2014Observed: 6.77 ft at 3:30PM Apr 23, 2014Observed: 6.78 ft at 4:00PM Apr 23, 2014Observed: 6.78 ft at 4:30PM Apr 23, 2014Observed: 6.78 ft at 5:00PM Apr 23, 2014Observed: 6.78 ft at 5:30PM Apr 23, 2014Observed: 6.78 ft at 6:00PM Apr 23, 2014Observed: 6.78 ft at 6:01PM Apr 23, 2014Observed: 6.77 ft at 6:30PM Apr 23, 2014Observed: 6.76 ft at 7:00PM Apr 23, 2014Observed: 6.76 ft at 7:30PM Apr 23, 2014Observed: 6.76 ft at 8:00PM Apr 23, 2014Observed: 6.77 ft at 8:30PM Apr 23, 2014Observed: 6.77 ft at 9:00PM Apr 23, 2014Observed: 6.77 ft at 9:30PM Apr 23, 2014Observed: 6.77 ft at 10:00PM Apr 23, 2014Observed: 6.77 ft at 10:30PM Apr 23, 2014Observed: 6.75 ft at 11:00PM Apr 23, 2014Observed: 6.75 ft at 11:30PM Apr 23, 2014Observed: 6.74 ft at 12:00AM Apr 24, 2014Observed: 6.73 ft at 12:30AM Apr 24, 2014Observed: 6.73 ft at 1:00AM Apr 24, 2014Observed: 6.74 ft at 1:30AM Apr 24, 2014Observed: 6.74 ft at 2:00AM Apr 24, 2014Observed: 6.74 ft at 2:30AM Apr 24, 2014Observed: 6.74 ft at 3:00AM Apr 24, 2014Observed: 6.74 ft at 3:30AM Apr 24, 2014Observed: 6.73 ft at 4:00AM Apr 24, 2014Observed: 6.73 ft at 4:30AM Apr 24, 2014Observed: 6.71 ft at 5:00AM Apr 24, 2014Observed: 6.69 ft at 5:30AM Apr 24, 2014Observed: 6.68 ft at 6:00AM Apr 24, 2014Observed: 6.68 ft at 6:30AM Apr 24, 2014Observed: 6.67 ft at 7:00AM Apr 24, 2014Observed: 6.67 ft at 7:30AM Apr 24, 2014Observed: 6.67 ft at 8:00AM Apr 24, 2014Observed: 6.67 ft at 8:30AM Apr 24, 2014Observed: 6.68 ft at 9:00AM Apr 24, 2014Observed: 6.68 ft at 9:30AM Apr 24, 2014Observed: 6.68 ft at 10:00AM Apr 24, 2014Observed: 6.68 ft at 10:30AM Apr 24, 2014Observed: 6.71 ft at 11:00AM Apr 24, 2014Observed: 6.71 ft at 11:30AM Apr 24, 2014Observed: 6.71 ft at 12:00PM Apr 24, 2014Observed: 6.71 ft at 12:30PM Apr 24, 2014Observed: 6.71 ft at 1:00PM Apr 24, 2014Observed: 6.71 ft at 1:30PM Apr 24, 2014Observed: 6.69 ft at 2:00PM Apr 24, 2014Observed: 6.69 ft at 2:30PM Apr 24, 2014Observed: 6.66 ft at 3:00PM Apr 24, 2014Observed: 6.66 ft at 3:30PM Apr 24, 2014Observed: 6.64 ft at 4:00PM Apr 24, 2014Observed: 6.63 ft at 4:30PM Apr 24, 2014Observed: 6.61 ft at 5:00PM Apr 24, 2014Observed: 6.58 ft at 5:30PM Apr 24, 2014Observed: 6.56 ft at 6:00PM Apr 24, 2014Observed: 6.56 ft at 6:01PM Apr 24, 2014Observed: 6.56 ft at 6:30PM Apr 24, 2014Observed: 6.56 ft at 7:00PM Apr 24, 2014Observed: 6.56 ft at 7:30PM Apr 24, 2014Observed: 6.55 ft at 8:00PM Apr 24, 2014Observed: 6.55 ft at 8:30PM Apr 24, 2014Observed: 6.55 ft at 9:00PM Apr 24, 2014Observed: 6.54 ft at 9:30PM Apr 24, 2014Highest Forecast: 6.6 ft 2:00AM Apr 25, 2014Highest Forecast: 6.6 ft 8:00AM Apr 25, 2014Highest Forecast: 6.6 ft 2:00PM Apr 25, 2014Forecast: 6.5 ft 8:00PM Apr 25, 2014Forecast: 6.5 ft 2:00AM Apr 26, 2014Forecast: 6.4 ft 8:00AM Apr 26, 2014Forecast: 6.4 ft 2:00PM Apr 26, 2014Forecast: 6.3 ft 8:00PM Apr 26, 2014Forecast: 6.3 ft 2:00AM Apr 27, 2014Forecast: 6.2 ft 8:00AM Apr 27, 2014USGS--Water Resources of the United StatesGOFN3(plotting HGIRG) Graph Created (10:15PM Apr 24, 2014)ObservedForecast (issued 11:09AM Apr 24)Latest observed value: 6.54 ft at 9:30 PM EDT 24-Apr-2014. Flood Stage is 11 ft
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About this graph
Tabular Data (UTC)
Tabular Data (EDT)
XML Data
RSS Files
Datum: Not Available
Metadata
NOTE: Gauge reading may be affected by ice.

NOTE: Forecasts for the Merrimack River at Goffs Falls are issued routinely year-round.

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Upstream Gauge - at Franklin Jct. Upstream Gauge Downstream Gauge Downstream Gauge - at Nashua
Flood Categories (in feet)
Major Flood Stage:17
Moderate Flood Stage:15
Flood Stage:11
Action Stage:10

Historical Crests
(1) 35.19 ft on 03/20/1936
(2) 25.87 ft on 09/23/1938
(3) 19.87 ft on 05/15/2006
(4) 17.42 ft on 04/06/1960
(5) 16.79 ft on 04/17/2007
Show More Historical Crests

Low Water Records
(1) 0.98 ft on 10/11/1964
Zoom Level: 16
Gauge Location
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
36.29 THIS IS THE MAXIMUM REPORTABLE LEVEL OF THE RIVER GAGE.
20 THIS IS A SIGNIFICANT AND SERIOUS FLOOD. IF YOU ARE IN A FLOOD PRONE LOCATION NEAR THE RIVER...ACT QUICKLY AND HEAD FOR HIGHER GROUND. IF YOU ARE ASKED TO EVACUATE...DO SO IMMEDIATELY. FLOODING AFFECTS PORTIONS OF MANCHESTER...BEDFORD...MERRIMACK AND LITCHFIELD. AREAS SIGNIFICANTLY IMPACTED INCLUDE RIVERDALE AVE AND STARK WAY IN MANCHESTER.
17 THIS IS A SERIOUS FLOOD EVENT. IF YOU ARE IN A FLOOD PRONE AREA NEAR THE RIVER...BE PREPARED TO MOVE TO HIGHER GROUND AND EVACUATE IF ASKED TO DO SO. AREAS IMPACTED INCLUDE STARK WAY AND RIVERDALE AVE IN MANCHESTER.
15 FLOODING IS EXPECTED IN LOW LYING AREAS OF GOFFSTOWN...MANCHESTER...MERRIMACK AND LITCHFIELD. SHOULD EVACUATIONS BECOME NECESSARY...ACT QUICKLY AND FOLLOW THE DIRECTIONS OF LOCAL EMERGENCY MANAGEMENT OFFICALS. FLOODING MAY FORCE THE CLOSURE OF SOME ROADWAYS WHICH RUN ALONG THE RIVER. KNOW ALTERNATE ROUTES SO YOU CAN AVOID THESE LOCATIONS.
11 FLOODING IS EXPECTED IN LOWEST LYING AREAS ALONG THE RIVER AFFECTING GOFFSTOWN...MANCHESTER...MERRIMACK AND LITCHFIELD.
About This Location Collapse

Latitude: 42.948056° N, Longitude: 71.463889° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame
Gauge Height Flood Stage Uses
NWS stage 0 ft 11 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:

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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: 8-Apr-2014 8:38 AM
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