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Hydrograph River at a Glance Download
Connecticut River at Holyoke Stage (ft)Flow (kcfs)Observed: 5.2 ft at 12:30AM Aug 30, 2014Observed: 5.14 ft at 12:45AM Aug 30, 2014Observed: 5.16 ft at 1:00AM Aug 30, 2014Observed: 5.14 ft at 1:15AM Aug 30, 2014Observed: 5.11 ft at 1:30AM Aug 30, 2014Observed: 5.15 ft at 1:45AM Aug 30, 2014Observed: 5.14 ft at 2:00AM Aug 30, 2014Observed: 5.14 ft at 2:01AM Aug 30, 2014Observed: 5.1 ft at 2:15AM Aug 30, 2014Observed: 5.15 ft at 2:30AM Aug 30, 2014Observed: 5.11 ft at 2:45AM Aug 30, 2014Observed: 5.12 ft at 3:00AM Aug 30, 2014Observed: 5.04 ft at 3:15AM Aug 30, 2014Observed: 5.09 ft at 3:30AM Aug 30, 2014Observed: 5.11 ft at 3:45AM Aug 30, 2014Observed: 5.12 ft at 4:00AM Aug 30, 2014Observed: 5.02 ft at 4:15AM Aug 30, 2014Observed: 5.07 ft at 4:30AM Aug 30, 2014Observed: 5.08 ft at 4:45AM Aug 30, 2014Observed: 5.05 ft at 5:00AM Aug 30, 2014Observed: 5.05 ft at 5:15AM Aug 30, 2014Observed: 5.03 ft at 5:30AM Aug 30, 2014Observed: 5 ft at 5:45AM Aug 30, 2014Observed: 5.03 ft at 6:00AM Aug 30, 2014Observed: 5.06 ft at 6:15AM Aug 30, 2014Observed: 5.04 ft at 6:30AM Aug 30, 2014Observed: 5.03 ft at 6:45AM Aug 30, 2014Observed: 4.96 ft at 7:00AM Aug 30, 2014Observed: 4.98 ft at 7:15AM Aug 30, 2014Observed: 5 ft at 7:30AM Aug 30, 2014Observed: 5 ft at 7:45AM Aug 30, 2014Observed: 5.02 ft at 8:00AM Aug 30, 2014Observed: 5.02 ft at 8:01AM Aug 30, 2014Observed: 5.03 ft at 8:15AM Aug 30, 2014Observed: 5.03 ft at 8:30AM Aug 30, 2014Observed: 5.01 ft at 8:45AM Aug 30, 2014Observed: 5 ft at 9:00AM Aug 30, 2014Observed: 5.02 ft at 9:15AM Aug 30, 2014Observed: 5.02 ft at 9:30AM Aug 30, 2014Observed: 5.04 ft at 9:45AM Aug 30, 2014Observed: 4.98 ft at 10:00AM Aug 30, 2014Observed: 5.07 ft at 10:15AM Aug 30, 2014Observed: 5.03 ft at 10:30AM Aug 30, 2014Observed: 5.04 ft at 10:45AM Aug 30, 2014Observed: 5.07 ft at 11:00AM Aug 30, 2014Observed: 5.03 ft at 11:15AM Aug 30, 2014Observed: 4.98 ft at 11:30AM Aug 30, 2014Observed: 5.07 ft at 11:45AM Aug 30, 2014Observed: 5.05 ft at 12:00PM Aug 30, 2014Observed: 5.01 ft at 12:15PM Aug 30, 2014Observed: 5.03 ft at 12:30PM Aug 30, 2014Observed: 5.04 ft at 12:45PM Aug 30, 2014Observed: 5.02 ft at 1:00PM Aug 30, 2014Observed: 5.04 ft at 1:15PM Aug 30, 2014Observed: 5.05 ft at 1:30PM Aug 30, 2014Observed: 5.04 ft at 1:45PM Aug 30, 2014Observed: 5.06 ft at 2:00PM Aug 30, 2014Observed: 5.01 ft at 2:15PM Aug 30, 2014Observed: 5.07 ft at 2:30PM Aug 30, 2014Observed: 5.08 ft at 2:45PM Aug 30, 2014Observed: 5 ft at 3:00PM Aug 30, 2014Observed: 5.07 ft at 3:15PM Aug 30, 2014Observed: 5.02 ft at 3:30PM Aug 30, 2014Observed: 5.08 ft at 3:45PM Aug 30, 2014Observed: 5.11 ft at 4:00PM Aug 30, 2014Observed: 5.06 ft at 4:15PM Aug 30, 2014Observed: 5.09 ft at 4:30PM Aug 30, 2014Observed: 5.06 ft at 4:45PM Aug 30, 2014Observed: 5.04 ft at 5:00PM Aug 30, 2014Observed: 5.12 ft at 5:15PM Aug 30, 2014Observed: 5.06 ft at 5:30PM Aug 30, 2014Observed: 5.05 ft at 5:45PM Aug 30, 2014Observed: 5.07 ft at 6:00PM Aug 30, 2014Observed: 5.06 ft at 6:15PM Aug 30, 2014Observed: 5.08 ft at 6:30PM Aug 30, 2014Observed: 5.12 ft at 6:45PM Aug 30, 2014Observed: 5.02 ft at 7:00PM Aug 30, 2014Observed: 5.08 ft at 7:15PM Aug 30, 2014Observed: 5.04 ft at 7:30PM Aug 30, 2014Observed: 5.05 ft at 7:45PM Aug 30, 2014Observed: 5.03 ft at 8:00PM Aug 30, 2014Observed: 5.03 ft at 8:01PM Aug 30, 2014Observed: 5.06 ft at 8:15PM Aug 30, 2014Observed: 5 ft at 8:30PM Aug 30, 2014Observed: 5.05 ft at 8:45PM Aug 30, 2014Observed: 5.09 ft at 9:00PM Aug 30, 2014Observed: 5.03 ft at 9:15PM Aug 30, 2014Observed: 5.08 ft at 9:30PM Aug 30, 2014Observed: 5.09 ft at 9:45PM Aug 30, 2014Observed: 5.02 ft at 10:00PM Aug 30, 2014Observed: 5.07 ft at 10:15PM Aug 30, 2014Observed: 5.03 ft at 10:30PM Aug 30, 2014Observed: 5.04 ft at 10:45PM Aug 30, 2014Observed: 5.07 ft at 11:00PM Aug 30, 2014Observed: 5.05 ft at 11:15PM Aug 30, 2014Observed: 5.03 ft at 11:30PM Aug 30, 2014Observed: 5.07 ft at 11:45PM Aug 30, 2014Observed: 5.06 ft at 12:00AM Aug 31, 2014Observed: 5.05 ft at 12:15AM Aug 31, 2014Observed: 5.05 ft at 12:30AM Aug 31, 2014Observed: 5.05 ft at 12:45AM Aug 31, 2014Observed: 5.07 ft at 1:00AM Aug 31, 2014Observed: 5.06 ft at 1:15AM Aug 31, 2014Observed: 5.03 ft at 1:30AM Aug 31, 2014Observed: 5.03 ft at 1:45AM Aug 31, 2014Observed: 5.06 ft at 2:00AM Aug 31, 2014Observed: 5.06 ft at 2:01AM Aug 31, 2014Observed: 5.07 ft at 2:15AM Aug 31, 2014Observed: 5.1 ft at 2:30AM Aug 31, 2014Observed: 5.07 ft at 2:45AM Aug 31, 2014Observed: 5.04 ft at 3:00AM Aug 31, 2014Observed: 5.05 ft at 3:15AM Aug 31, 2014Observed: 5.06 ft at 3:30AM Aug 31, 2014Observed: 5.07 ft at 3:45AM Aug 31, 2014Observed: 5.05 ft at 4:00AM Aug 31, 2014Observed: 5.07 ft at 4:15AM Aug 31, 2014Observed: 5.08 ft at 4:30AM Aug 31, 2014Observed: 5.07 ft at 4:45AM Aug 31, 2014Observed: 5.06 ft at 5:00AM Aug 31, 2014Observed: 5.01 ft at 5:15AM Aug 31, 2014Observed: 5.07 ft at 5:30AM Aug 31, 2014Observed: 5.04 ft at 5:45AM Aug 31, 2014Observed: 5.06 ft at 6:00AM Aug 31, 2014Observed: 5.08 ft at 6:15AM Aug 31, 2014Observed: 5.04 ft at 6:30AM Aug 31, 2014Observed: 5.02 ft at 6:45AM Aug 31, 2014Observed: 5.02 ft at 7:00AM Aug 31, 2014Observed: 5.04 ft at 7:15AM Aug 31, 2014Observed: 5.05 ft at 7:30AM Aug 31, 2014Observed: 5.09 ft at 7:45AM Aug 31, 2014Observed: 5.11 ft at 8:00AM Aug 31, 2014Observed: 5.1 ft at 8:15AM Aug 31, 2014Observed: 5.06 ft at 8:30AM Aug 31, 2014Observed: 5.05 ft at 8:45AM Aug 31, 2014Observed: 5.11 ft at 9:00AM Aug 31, 2014Observed: 5.07 ft at 9:15AM Aug 31, 2014Observed: 5.11 ft at 9:30AM Aug 31, 2014Observed: 5.08 ft at 9:45AM Aug 31, 2014Observed: 5.06 ft at 10:00AM Aug 31, 2014Observed: 5.05 ft at 10:15AM Aug 31, 2014Observed: 5.03 ft at 10:30AM Aug 31, 2014Observed: 5.03 ft at 10:45AM Aug 31, 2014Observed: 5.03 ft at 11:00AM Aug 31, 2014Observed: 5.05 ft at 11:15AM Aug 31, 2014Observed: 5 ft at 11:30AM Aug 31, 2014Observed: 5.03 ft at 11:45AM Aug 31, 2014Observed: 4.98 ft at 12:00PM Aug 31, 2014Observed: 5 ft at 12:15PM Aug 31, 2014Observed: 4.97 ft at 12:30PM Aug 31, 2014Observed: 5 ft at 12:45PM Aug 31, 2014Observed: 4.97 ft at 1:00PM Aug 31, 2014Observed: 4.97 ft at 1:15PM Aug 31, 2014Observed: 4.92 ft at 1:30PM Aug 31, 2014Observed: 4.95 ft at 1:45PM Aug 31, 2014Observed: 4.96 ft at 2:00PM Aug 31, 2014Observed: 4.96 ft at 2:01PM Aug 31, 2014Observed: 4.91 ft at 2:15PM Aug 31, 2014Observed: 4.89 ft at 2:30PM Aug 31, 2014Observed: 4.96 ft at 2:45PM Aug 31, 2014Observed: 4.92 ft at 3:00PM Aug 31, 2014Observed: 4.92 ft at 3:15PM Aug 31, 2014Observed: 4.93 ft at 3:30PM Aug 31, 2014Observed: 4.93 ft at 3:45PM Aug 31, 2014Observed: 4.96 ft at 4:00PM Aug 31, 2014Observed: 4.96 ft at 4:15PM Aug 31, 2014Observed: 4.97 ft at 4:30PM Aug 31, 2014Observed: 5 ft at 4:45PM Aug 31, 2014Observed: 4.95 ft at 5:00PM Aug 31, 2014Observed: 5.01 ft at 5:15PM Aug 31, 2014Observed: 4.98 ft at 5:30PM Aug 31, 2014Observed: 5.01 ft at 5:45PM Aug 31, 2014Observed: 5 ft at 6:00PM Aug 31, 2014Observed: 4.93 ft at 6:15PM Aug 31, 2014Observed: 5.1 ft at 6:30PM Aug 31, 2014Observed: 5.28 ft at 6:45PM Aug 31, 2014Observed: 5.4 ft at 7:00PM Aug 31, 2014Observed: 5.57 ft at 7:15PM Aug 31, 2014Observed: 5.68 ft at 7:30PM Aug 31, 2014Observed: 5.74 ft at 7:45PM Aug 31, 2014Observed: 5.89 ft at 8:00PM Aug 31, 2014Observed: 5.89 ft at 8:01PM Aug 31, 2014Observed: 5.92 ft at 8:15PM Aug 31, 2014Observed: 5.99 ft at 8:30PM Aug 31, 2014Observed: 5.98 ft at 8:45PM Aug 31, 2014Observed: 6.06 ft at 9:00PM Aug 31, 2014Observed: 6.03 ft at 9:15PM Aug 31, 2014Observed: 6.04 ft at 9:30PM Aug 31, 2014Observed: 6.05 ft at 9:45PM Aug 31, 2014Observed: 6.06 ft at 10:00PM Aug 31, 2014Observed: 6.11 ft at 10:15PM Aug 31, 2014Observed: 6.1 ft at 10:30PM Aug 31, 2014Observed: 6.17 ft at 10:45PM Aug 31, 2014Observed: 6.17 ft at 11:00PM Aug 31, 2014Observed: 6.21 ft at 11:15PM Aug 31, 2014Observed: 6.22 ft at 11:30PM Aug 31, 2014Observed: 6.22 ft at 11:45PM Aug 31, 2014Observed: 6.22 ft at 12:00AM Sep 01, 2014Observed: 6.28 ft at 12:15AM Sep 01, 2014Observed: 6.29 ft at 12:30AM Sep 01, 2014Observed: 6.33 ft at 12:45AM Sep 01, 2014Observed: 6.27 ft at 1:00AM Sep 01, 2014Observed: 6.33 ft at 1:15AM Sep 01, 2014Observed: 6.34 ft at 1:30AM Sep 01, 2014Observed: 6.32 ft at 1:45AM Sep 01, 2014Observed: 6.37 ft at 2:00AM Sep 01, 2014Observed: 6.37 ft at 2:15AM Sep 01, 2014Observed: 6.37 ft at 2:16AM Sep 01, 2014Observed: 6.41 ft at 2:30AM Sep 01, 2014Observed: 6.38 ft at 2:45AM Sep 01, 2014Observed: 6.4 ft at 3:00AM Sep 01, 2014Observed: 6.41 ft at 3:15AM Sep 01, 2014Observed: 6.44 ft at 3:30AM Sep 01, 2014Observed: 6.44 ft at 3:45AM Sep 01, 2014Observed: 6.49 ft at 4:00AM Sep 01, 2014Observed: 6.52 ft at 4:15AM Sep 01, 2014Observed: 6.51 ft at 4:30AM Sep 01, 2014Observed: 6.56 ft at 4:45AM Sep 01, 2014Observed: 6.56 ft at 5:00AM Sep 01, 2014Observed: 6.56 ft at 5:15AM Sep 01, 2014Observed: 6.55 ft at 5:30AM Sep 01, 2014Observed: 6.55 ft at 5:45AM Sep 01, 2014Observed: 6.55 ft at 6:00AM Sep 01, 2014Observed: 6.63 ft at 6:15AM Sep 01, 2014Observed: 6.6 ft at 6:30AM Sep 01, 2014Observed: 6.66 ft at 6:45AM Sep 01, 2014Observed: 6.63 ft at 7:00AM Sep 01, 2014Observed: 6.58 ft at 7:15AM Sep 01, 2014Observed: 6.64 ft at 7:30AM Sep 01, 2014Observed: 6.67 ft at 7:45AM Sep 01, 2014Observed: 6.68 ft at 8:00AM Sep 01, 2014Observed: 6.68 ft at 8:15AM Sep 01, 2014Observed: 6.68 ft at 8:16AM Sep 01, 2014Observed: 6.75 ft at 8:30AM Sep 01, 2014Observed: 6.74 ft at 8:45AM Sep 01, 2014Highest Observation: 6.89 ft at 9:00AM Sep 01, 2014Observed: 6.88 ft at 9:15AM Sep 01, 2014Observed: 6.77 ft at 9:30AM Sep 01, 2014Observed: 6.66 ft at 9:45AM Sep 01, 2014Observed: 6.53 ft at 10:00AM Sep 01, 2014Observed: 6.47 ft at 10:15AM Sep 01, 2014Observed: 6.43 ft at 10:30AM Sep 01, 2014Observed: 6.38 ft at 10:45AM Sep 01, 2014Observed: 6.33 ft at 11:00AM Sep 01, 2014Observed: 6.34 ft at 11:15AM Sep 01, 2014Observed: 6.32 ft at 11:30AM Sep 01, 2014Observed: 6.33 ft at 11:45AM Sep 01, 2014Observed: 6.27 ft at 12:00PM Sep 01, 2014Observed: 6.3 ft at 12:15PM Sep 01, 2014Observed: 6.24 ft at 12:30PM Sep 01, 2014Observed: 6.28 ft at 12:45PM Sep 01, 2014Observed: 6.26 ft at 1:00PM Sep 01, 2014Observed: 6.2 ft at 1:15PM Sep 01, 2014Observed: 6.22 ft at 1:30PM Sep 01, 2014Observed: 6.2 ft at 1:45PM Sep 01, 2014Observed: 6.24 ft at 2:00PM Sep 01, 2014Observed: 6.21 ft at 2:15PM Sep 01, 2014Observed: 6.21 ft at 2:16PM Sep 01, 2014Observed: 6.18 ft at 2:30PM Sep 01, 2014Observed: 6.19 ft at 2:45PM Sep 01, 2014Observed: 6.13 ft at 3:00PM Sep 01, 2014Observed: 6.11 ft at 3:15PM Sep 01, 2014Observed: 6.13 ft at 3:30PM Sep 01, 2014Observed: 6.11 ft at 3:45PM Sep 01, 2014Observed: 6.13 ft at 4:00PM Sep 01, 2014Observed: 6.09 ft at 4:15PM Sep 01, 2014Observed: 6.08 ft at 4:30PM Sep 01, 2014Observed: 6.07 ft at 4:45PM Sep 01, 2014Observed: 6.06 ft at 5:00PM Sep 01, 2014Observed: 6.09 ft at 5:15PM Sep 01, 2014Observed: 6.06 ft at 5:30PM Sep 01, 2014Observed: 6.04 ft at 5:45PM Sep 01, 2014Observed: 6.03 ft at 6:00PM Sep 01, 2014Observed: 6.04 ft at 6:15PM Sep 01, 2014Observed: 6.03 ft at 6:30PM Sep 01, 2014Observed: 6.04 ft at 6:45PM Sep 01, 2014Observed: 5.98 ft at 7:00PM Sep 01, 2014Observed: 6.02 ft at 7:15PM Sep 01, 2014Observed: 6.15 ft at 7:30PM Sep 01, 2014Observed: 6.28 ft at 7:45PM Sep 01, 2014Observed: 6.34 ft at 8:00PM Sep 01, 2014Observed: 6.39 ft at 8:15PM Sep 01, 2014Observed: 6.44 ft at 8:30PM Sep 01, 2014Observed: 6.48 ft at 8:45PM Sep 01, 2014Observed: 6.45 ft at 9:00PM Sep 01, 2014Observed: 6.54 ft at 9:15PM Sep 01, 2014Observed: 6.51 ft at 9:30PM Sep 01, 2014Observed: 6.52 ft at 9:45PM Sep 01, 2014Observed: 6.48 ft at 10:00PM Sep 01, 2014Observed: 6.58 ft at 10:15PM Sep 01, 2014Observed: 6.49 ft at 10:30PM Sep 01, 2014Observed: 6.57 ft at 10:45PM Sep 01, 2014Observed: 6.56 ft at 11:00PM Sep 01, 2014Observed: 6.5 ft at 11:15PM Sep 01, 2014Observed: 6.57 ft at 11:30PM Sep 01, 2014USGS--Water Resources of the United StatesHLYM3(plotting HGIRG) Graph Created (12:15AM Sep 2, 2014)ObservedLatest observed value: 6.57 ft at 11:30 PM EDT 1-Sep-2014. Flood Stage is 26.5 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 Connecticut River at Holyoke are issued as needed during times of high water, but are not routinely available.
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Upstream Gauge - at Holyoke - Upper Upstream Gauge Downstream Gauge Downstream Gauge - at Springfield
Flood Categories (in feet)
Major Flood Stage:32.5
Moderate Flood Stage:29.5
Flood Stage:26.5
Action Stage:25.5

Historical Crests
(1) 27.73 ft on 08/30/2011
(2) 26.39 ft on 10/10/2005
(3) 25.27 ft on 04/17/2007
(4) 25.20 ft on 04/02/2004
(5) 25.04 ft on 04/04/2005
Show More Historical Crests

(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
32.5 THIS IS A SERIOUS FLOOD EPISODE. FOLLOW THE DIRECTION OF YOUR LOCAL EMERGENCY MANAGEMENT OFFICALS. IF ASKED TO EVACUATE...DO SO IMMEDIATELY. ALL FLOOD PROTECTION MEASURES MUST BE RUSHED TO COMPLETION IN FLOOD PRONE AREAS. FLOODING IS LIKELY FROM BELOW THE HOLYOKE DAM THROUGH CHICOPEE AND WEST SPRINGFIELD.
29 FLOODING WILL CONTINUE TO SPEAD ACROSS LOW LYING AREAS FROM HOLYOKE SOUTH THROUGH AGAWAM. INUNDATION OF AREAS WHICH ARE OUTSIDE OF LOCAL LEVEE PROTECTION IS LIKELY.
28 FLOODING WILL AFFECT LOW LYING AREAS ALONG THE RIVER WHICH FALL OUTSIDE OF LEVEES AND FLOOD PROTECTION WALLS.
26.5 LOWLAND FLOODING IS EXPECTED ALONG THE CONNECTICUT RIVER BELOW THE HOLYOKE DAM SOUTH TO AGAWAM AND LONGMEADOW.
About This Location Collapse

Latitude: 42.190556° N, Longitude: 72.608889° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame
Gauge Height Flood Stage Uses
NWS stage 0 ft 26.5 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.
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Page last modified: 5-Aug-2014 6:39 PM
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