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Hydrograph River at a Glance Download Inundation
Mapping
Unadilla River at Rockdale Stage (ft)Flow (kcfs)Observed: 4.83 ft at 11:30PM Jul 27, 2014Observed: 4.83 ft at 11:45PM Jul 27, 2014Observed: 4.83 ft at 12:00AM Jul 28, 2014Observed: 4.83 ft at 12:15AM Jul 28, 2014Observed: 4.86 ft at 12:30AM Jul 28, 2014Observed: 4.86 ft at 12:45AM Jul 28, 2014Observed: 4.86 ft at 1:00AM Jul 28, 2014Observed: 4.87 ft at 1:15AM Jul 28, 2014Observed: 4.87 ft at 1:30AM Jul 28, 2014Observed: 4.87 ft at 1:45AM Jul 28, 2014Observed: 4.87 ft at 2:00AM Jul 28, 2014Observed: 4.87 ft at 2:15AM Jul 28, 2014Observed: 4.87 ft at 2:30AM Jul 28, 2014Observed: 4.87 ft at 2:45AM Jul 28, 2014Observed: 4.87 ft at 3:00AM Jul 28, 2014Observed: 4.87 ft at 3:15AM Jul 28, 2014Observed: 4.87 ft at 3:30AM Jul 28, 2014Observed: 4.87 ft at 3:45AM Jul 28, 2014Observed: 4.87 ft at 4:00AM Jul 28, 2014Observed: 4.87 ft at 4:15AM Jul 28, 2014Observed: 4.87 ft at 4:30AM Jul 28, 2014Observed: 4.88 ft at 4:45AM Jul 28, 2014Observed: 4.88 ft at 5:00AM Jul 28, 2014Observed: 4.88 ft at 5:15AM Jul 28, 2014Observed: 4.89 ft at 5:30AM Jul 28, 2014Observed: 4.89 ft at 5:45AM Jul 28, 2014Observed: 4.9 ft at 6:00AM Jul 28, 2014Observed: 4.91 ft at 6:15AM Jul 28, 2014Observed: 4.91 ft at 6:30AM Jul 28, 2014Observed: 4.92 ft at 6:45AM Jul 28, 2014Observed: 4.93 ft at 7:00AM Jul 28, 2014Observed: 4.94 ft at 7:15AM Jul 28, 2014Observed: 4.95 ft at 7:30AM Jul 28, 2014Observed: 4.96 ft at 7:45AM Jul 28, 2014Observed: 4.97 ft at 8:00AM Jul 28, 2014Observed: 4.97 ft at 8:15AM Jul 28, 2014Observed: 4.99 ft at 8:30AM Jul 28, 2014Observed: 5 ft at 8:45AM Jul 28, 2014Observed: 5.01 ft at 9:00AM Jul 28, 2014Observed: 5.03 ft at 9:15AM Jul 28, 2014Observed: 5.04 ft at 9:30AM Jul 28, 2014Observed: 5.06 ft at 9:45AM Jul 28, 2014Observed: 5.07 ft at 10:00AM Jul 28, 2014Observed: 5.08 ft at 10:15AM Jul 28, 2014Observed: 5.1 ft at 10:30AM Jul 28, 2014Observed: 5.11 ft at 10:45AM Jul 28, 2014Observed: 5.12 ft at 11:00AM Jul 28, 2014Observed: 5.13 ft at 11:15AM Jul 28, 2014Observed: 5.14 ft at 11:30AM Jul 28, 2014Observed: 5.15 ft at 11:45AM Jul 28, 2014Observed: 5.16 ft at 12:00PM Jul 28, 2014Observed: 5.17 ft at 12:15PM Jul 28, 2014Observed: 5.18 ft at 12:30PM Jul 28, 2014Observed: 5.19 ft at 12:45PM Jul 28, 2014Observed: 5.2 ft at 1:00PM Jul 28, 2014Observed: 5.21 ft at 1:15PM Jul 28, 2014Observed: 5.22 ft at 1:30PM Jul 28, 2014Observed: 5.23 ft at 1:45PM Jul 28, 2014Observed: 5.25 ft at 2:00PM Jul 28, 2014Observed: 5.26 ft at 2:15PM Jul 28, 2014Observed: 5.27 ft at 2:30PM Jul 28, 2014Observed: 5.28 ft at 2:45PM Jul 28, 2014Observed: 5.29 ft at 3:00PM Jul 28, 2014Observed: 5.31 ft at 3:15PM Jul 28, 2014Observed: 5.32 ft at 3:30PM Jul 28, 2014Observed: 5.34 ft at 3:45PM Jul 28, 2014Observed: 5.35 ft at 4:00PM Jul 28, 2014Observed: 5.37 ft at 4:15PM Jul 28, 2014Observed: 5.38 ft at 4:30PM Jul 28, 2014Observed: 5.39 ft at 4:45PM Jul 28, 2014Observed: 5.41 ft at 5:00PM Jul 28, 2014Observed: 5.42 ft at 5:15PM Jul 28, 2014Observed: 5.45 ft at 5:30PM Jul 28, 2014Observed: 5.46 ft at 5:45PM Jul 28, 2014Observed: 5.48 ft at 6:00PM Jul 28, 2014Observed: 5.5 ft at 6:15PM Jul 28, 2014Observed: 5.51 ft at 6:30PM Jul 28, 2014Observed: 5.53 ft at 6:45PM Jul 28, 2014Observed: 5.54 ft at 7:00PM Jul 28, 2014Observed: 5.56 ft at 7:15PM Jul 28, 2014Observed: 5.57 ft at 7:30PM Jul 28, 2014Observed: 5.59 ft at 7:45PM Jul 28, 2014Observed: 5.6 ft at 8:00PM Jul 28, 2014Observed: 5.61 ft at 8:15PM Jul 28, 2014Observed: 5.62 ft at 8:30PM Jul 28, 2014Observed: 5.64 ft at 8:45PM Jul 28, 2014Observed: 5.64 ft at 9:00PM Jul 28, 2014Observed: 5.66 ft at 9:15PM Jul 28, 2014Observed: 5.66 ft at 9:30PM Jul 28, 2014Observed: 5.67 ft at 9:45PM Jul 28, 2014Observed: 5.68 ft at 10:00PM Jul 28, 2014Observed: 5.68 ft at 10:15PM Jul 28, 2014Observed: 5.69 ft at 10:30PM Jul 28, 2014Observed: 5.71 ft at 10:45PM Jul 28, 2014Observed: 5.7 ft at 11:00PM Jul 28, 2014Observed: 5.71 ft at 11:15PM Jul 28, 2014Observed: 5.72 ft at 11:30PM Jul 28, 2014Observed: 5.72 ft at 11:45PM Jul 28, 2014Observed: 5.73 ft at 12:00AM Jul 29, 2014Observed: 5.74 ft at 12:15AM Jul 29, 2014Observed: 5.73 ft at 12:30AM Jul 29, 2014Observed: 5.74 ft at 12:45AM Jul 29, 2014Observed: 5.74 ft at 1:00AM Jul 29, 2014Observed: 5.76 ft at 1:15AM Jul 29, 2014Observed: 5.75 ft at 1:30AM Jul 29, 2014Observed: 5.76 ft at 1:45AM Jul 29, 2014Observed: 5.76 ft at 2:00AM Jul 29, 2014Observed: 5.76 ft at 2:15AM Jul 29, 2014Highest Observation: 5.77 ft at 2:30AM Jul 29, 2014Highest Observation: 5.77 ft at 2:45AM Jul 29, 2014Highest Observation: 5.77 ft at 3:00AM Jul 29, 2014Observed: 5.75 ft at 3:15AM Jul 29, 2014Observed: 5.76 ft at 3:30AM Jul 29, 2014Observed: 5.76 ft at 3:45AM Jul 29, 2014Observed: 5.76 ft at 4:00AM Jul 29, 2014Observed: 5.76 ft at 4:15AM Jul 29, 2014Observed: 5.75 ft at 4:30AM Jul 29, 2014Observed: 5.75 ft at 4:45AM Jul 29, 2014Observed: 5.75 ft at 5:00AM Jul 29, 2014Observed: 5.75 ft at 5:15AM Jul 29, 2014Observed: 5.74 ft at 5:30AM Jul 29, 2014Observed: 5.74 ft at 5:45AM Jul 29, 2014Observed: 5.73 ft at 6:00AM Jul 29, 2014Observed: 5.72 ft at 6:15AM Jul 29, 2014Observed: 5.73 ft at 6:30AM Jul 29, 2014Observed: 5.72 ft at 6:45AM Jul 29, 2014Observed: 5.71 ft at 7:00AM Jul 29, 2014Observed: 5.71 ft at 7:15AM Jul 29, 2014Observed: 5.71 ft at 7:30AM Jul 29, 2014Observed: 5.7 ft at 7:45AM Jul 29, 2014Observed: 5.69 ft at 8:00AM Jul 29, 2014Observed: 5.69 ft at 8:15AM Jul 29, 2014Observed: 5.7 ft at 8:30AM Jul 29, 2014Observed: 5.68 ft at 8:45AM Jul 29, 2014Observed: 5.69 ft at 9:00AM Jul 29, 2014Observed: 5.67 ft at 9:15AM Jul 29, 2014Observed: 5.66 ft at 9:30AM Jul 29, 2014Observed: 5.66 ft at 9:45AM Jul 29, 2014Observed: 5.66 ft at 10:00AM Jul 29, 2014Observed: 5.66 ft at 10:15AM Jul 29, 2014Observed: 5.67 ft at 10:30AM Jul 29, 2014Observed: 5.66 ft at 10:45AM Jul 29, 2014Observed: 5.64 ft at 11:00AM Jul 29, 2014Observed: 5.63 ft at 11:15AM Jul 29, 2014Observed: 5.64 ft at 11:30AM Jul 29, 2014Observed: 5.63 ft at 11:45AM Jul 29, 2014Observed: 5.63 ft at 12:00PM Jul 29, 2014Observed: 5.63 ft at 12:15PM Jul 29, 2014Observed: 5.62 ft at 12:30PM Jul 29, 2014Observed: 5.61 ft at 12:45PM Jul 29, 2014Observed: 5.61 ft at 1:00PM Jul 29, 2014Observed: 5.59 ft at 1:15PM Jul 29, 2014Observed: 5.59 ft at 1:30PM Jul 29, 2014Observed: 5.59 ft at 1:45PM Jul 29, 2014Observed: 5.59 ft at 2:00PM Jul 29, 2014Observed: 5.58 ft at 2:15PM Jul 29, 2014Observed: 5.58 ft at 2:30PM Jul 29, 2014Observed: 5.57 ft at 2:45PM Jul 29, 2014Observed: 5.57 ft at 3:00PM Jul 29, 2014Observed: 5.56 ft at 3:15PM Jul 29, 2014Observed: 5.56 ft at 3:30PM Jul 29, 2014Observed: 5.55 ft at 3:45PM Jul 29, 2014Observed: 5.54 ft at 4:00PM Jul 29, 2014Observed: 5.53 ft at 4:15PM Jul 29, 2014Observed: 5.53 ft at 4:30PM Jul 29, 2014Observed: 5.53 ft at 4:45PM Jul 29, 2014Observed: 5.52 ft at 5:00PM Jul 29, 2014Observed: 5.52 ft at 5:15PM Jul 29, 2014Observed: 5.51 ft at 5:30PM Jul 29, 2014Observed: 5.51 ft at 5:45PM Jul 29, 2014Observed: 5.5 ft at 6:00PM Jul 29, 2014Observed: 5.49 ft at 6:15PM Jul 29, 2014Observed: 5.49 ft at 6:30PM Jul 29, 2014Observed: 5.48 ft at 6:45PM Jul 29, 2014Observed: 5.48 ft at 7:00PM Jul 29, 2014Observed: 5.47 ft at 7:15PM Jul 29, 2014Observed: 5.46 ft at 7:30PM Jul 29, 2014Observed: 5.46 ft at 7:45PM Jul 29, 2014Observed: 5.45 ft at 8:00PM Jul 29, 2014Observed: 5.45 ft at 8:15PM Jul 29, 2014Observed: 5.44 ft at 8:30PM Jul 29, 2014Observed: 5.44 ft at 8:45PM Jul 29, 2014Observed: 5.43 ft at 9:00PM Jul 29, 2014Observed: 5.43 ft at 9:15PM Jul 29, 2014Observed: 5.42 ft at 9:30PM Jul 29, 2014Observed: 5.42 ft at 9:45PM Jul 29, 2014Observed: 5.41 ft at 10:00PM Jul 29, 2014Observed: 5.41 ft at 10:15PM Jul 29, 2014Observed: 5.4 ft at 10:30PM Jul 29, 2014Observed: 5.39 ft at 10:45PM Jul 29, 2014Observed: 5.39 ft at 11:00PM Jul 29, 2014Observed: 5.39 ft at 11:15PM Jul 29, 2014Observed: 5.38 ft at 11:30PM Jul 29, 2014Observed: 5.38 ft at 11:45PM Jul 29, 2014Observed: 5.37 ft at 12:00AM Jul 30, 2014Observed: 5.36 ft at 12:15AM Jul 30, 2014Observed: 5.36 ft at 12:30AM Jul 30, 2014Observed: 5.36 ft at 12:45AM Jul 30, 2014Observed: 5.36 ft at 1:00AM Jul 30, 2014Observed: 5.35 ft at 1:15AM Jul 30, 2014Observed: 5.35 ft at 1:30AM Jul 30, 2014Observed: 5.33 ft at 1:45AM Jul 30, 2014Observed: 5.33 ft at 2:00AM Jul 30, 2014Observed: 5.33 ft at 2:15AM Jul 30, 2014Observed: 5.33 ft at 2:30AM Jul 30, 2014Observed: 5.32 ft at 2:45AM Jul 30, 2014Observed: 5.31 ft at 3:00AM Jul 30, 2014Observed: 5.31 ft at 3:15AM Jul 30, 2014Observed: 5.31 ft at 3:30AM Jul 30, 2014Observed: 5.3 ft at 3:45AM Jul 30, 2014Observed: 5.3 ft at 4:00AM Jul 30, 2014Observed: 5.29 ft at 4:15AM Jul 30, 2014Observed: 5.29 ft at 4:30AM Jul 30, 2014Observed: 5.29 ft at 4:45AM Jul 30, 2014Observed: 5.28 ft at 5:00AM Jul 30, 2014Observed: 5.28 ft at 5:15AM Jul 30, 2014Observed: 5.27 ft at 5:30AM Jul 30, 2014Observed: 5.27 ft at 5:45AM Jul 30, 2014Observed: 5.26 ft at 6:00AM Jul 30, 2014Observed: 5.26 ft at 6:15AM Jul 30, 2014Observed: 5.26 ft at 6:30AM Jul 30, 2014Observed: 5.25 ft at 6:45AM Jul 30, 2014Observed: 5.25 ft at 7:00AM Jul 30, 2014Observed: 5.24 ft at 7:15AM Jul 30, 2014Observed: 5.24 ft at 7:30AM Jul 30, 2014Observed: 5.24 ft at 7:45AM Jul 30, 2014Observed: 5.23 ft at 8:00AM Jul 30, 2014Observed: 5.23 ft at 8:15AM Jul 30, 2014Observed: 5.23 ft at 8:30AM Jul 30, 2014Observed: 5.22 ft at 8:45AM Jul 30, 2014Observed: 5.22 ft at 9:00AM Jul 30, 2014Observed: 5.22 ft at 9:15AM Jul 30, 2014Observed: 5.21 ft at 9:30AM Jul 30, 2014Observed: 5.2 ft at 9:45AM Jul 30, 2014Observed: 5.2 ft at 10:00AM Jul 30, 2014Observed: 5.2 ft at 10:15AM Jul 30, 2014Observed: 5.2 ft at 10:30AM Jul 30, 2014Observed: 5.19 ft at 10:45AM Jul 30, 2014Observed: 5.19 ft at 11:00AM Jul 30, 2014Observed: 5.18 ft at 11:15AM Jul 30, 2014Observed: 5.18 ft at 11:30AM Jul 30, 2014Observed: 5.17 ft at 11:45AM Jul 30, 2014Observed: 5.17 ft at 12:00PM Jul 30, 2014Observed: 5.17 ft at 12:15PM Jul 30, 2014Observed: 5.16 ft at 12:30PM Jul 30, 2014Observed: 5.16 ft at 12:45PM Jul 30, 2014Observed: 5.16 ft at 1:00PM Jul 30, 2014Observed: 5.15 ft at 1:15PM Jul 30, 2014Observed: 5.15 ft at 1:30PM Jul 30, 2014Observed: 5.15 ft at 1:45PM Jul 30, 2014Observed: 5.14 ft at 2:00PM Jul 30, 2014Observed: 5.14 ft at 2:15PM Jul 30, 2014Observed: 5.14 ft at 2:30PM Jul 30, 2014Observed: 5.13 ft at 2:45PM Jul 30, 2014Observed: 5.13 ft at 3:00PM Jul 30, 2014Observed: 5.13 ft at 3:15PM Jul 30, 2014Observed: 5.12 ft at 3:30PM Jul 30, 2014Observed: 5.12 ft at 3:45PM Jul 30, 2014Observed: 5.12 ft at 4:00PM Jul 30, 2014Observed: 5.11 ft at 4:15PM Jul 30, 2014Observed: 5.11 ft at 4:30PM Jul 30, 2014Observed: 5.11 ft at 4:45PM Jul 30, 2014Observed: 5.1 ft at 5:00PM Jul 30, 2014Observed: 5.1 ft at 5:15PM Jul 30, 2014Observed: 5.1 ft at 5:30PM Jul 30, 2014Observed: 5.1 ft at 5:45PM Jul 30, 2014Observed: 5.09 ft at 6:00PM Jul 30, 2014Observed: 5.09 ft at 6:15PM Jul 30, 2014Observed: 5.09 ft at 6:30PM Jul 30, 2014Observed: 5.08 ft at 6:45PM Jul 30, 2014Observed: 5.08 ft at 7:00PM Jul 30, 2014Observed: 5.08 ft at 7:15PM Jul 30, 2014Observed: 5.08 ft at 7:30PM Jul 30, 2014Observed: 5.07 ft at 7:45PM Jul 30, 2014Observed: 5.07 ft at 8:00PM Jul 30, 2014Observed: 5.07 ft at 8:15PM Jul 30, 2014Observed: 5.07 ft at 8:30PM Jul 30, 2014Observed: 5.06 ft at 8:45PM Jul 30, 2014Observed: 5.06 ft at 9:00PM Jul 30, 2014Observed: 5.06 ft at 9:15PM Jul 30, 2014Observed: 5.05 ft at 9:30PM Jul 30, 2014Observed: 5.05 ft at 9:45PM Jul 30, 2014Observed: 5.05 ft at 10:00PM Jul 30, 2014Observed: 5.05 ft at 10:15PM Jul 30, 2014Observed: 5.04 ft at 10:30PM Jul 30, 2014Highest Forecast: 5 ft 2:00AM Jul 31, 2014Highest Forecast: 5 ft 8:00AM Jul 31, 2014Highest Forecast: 5 ft 2:00PM Jul 31, 2014Highest Forecast: 5 ft 8:00PM Jul 31, 2014Highest Forecast: 5 ft 2:00AM Aug 01, 2014Highest Forecast: 5 ft 8:00AM Aug 01, 2014Highest Forecast: 5 ft 2:00PM Aug 01, 2014Highest Forecast: 5 ft 8:00PM Aug 01, 2014Highest Forecast: 5 ft 2:00AM Aug 02, 2014Forecast: 4.9 ft 8:00AM Aug 02, 2014USGS--Water Resources of the United StatesRCKN6(plotting HGIRG) Graph Created (11:16PM Jul 30, 2014)ObservedForecast (issued 10:01AM Jul 30)Latest observed value: 5.04 ft at 10:30 PM EDT 30-Jul-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: Forecasts for the Unadilla River at Rockdale are issued routinely year-round.
Return to Area Map
Flood Categories (in feet)
Major Flood Stage:13
Moderate Flood Stage:12
Flood Stage:11
Action Stage:8

Historical Crests
(1) 14.22 ft on 09/08/2011
(2) 13.96 ft on 06/29/2006
(3) 12.98 ft on 12/31/1942
(4) 12.64 ft on 03/14/1977
(5) 12.62 ft on 03/26/1979
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
14.22 RECORD FLOOD EVENT OF SEPTEMBER 2011. WIDESPREAD AND SEVERE FLOOD INUNDATION OCCURRED TO RESIDENCES AND BUSINESSES ALONG THE RIVER. MILLIONS OF DOLLARS IN DAMAGE WERE REPORTED.
13.96 FLOOD LEVEL OF JUNE 2006. FLOODING WAS WIDESPREAD AND SEVERE WITH WATER SEVERAL FEET DEEP IN MANY LOCATIONS NEAR THE RIVER ALONG ROUTE 8 FROM MOUNT UPTON TO SIDNEY.
13 MAJOR FLOOD STAGE. MUCH OF ROUTE 8 IS FLOODED NORTH AND SOUTH OF ROCKDALE INCLUDING SEVERAL RESIDENCES AND BUSINESSES. FLOODING THREATENS RESIDENCES IN MOUNT UPTON ALONG BRIDGE STREET. DAMAGES AT THIS STAGE ARE TYPICALLY SEVERE.
12.6 NUMEROUS CELLARS ALONG THE RIVER ARE FLOODED.
12 MODERATE FLOOD STAGE. SEVERAL HOMES AND BUSINESSES ARE FLOODED IN VARIOUS SPOTS ALONG ROUTE 8 BETWEEN ROCKWELLS MILLS AND SIDNEY. FLOODING REACHES PROPERTIES AND RESIDENCES ON COUNTY ROUTE 1 AT ROCKDALE. HITCHING POST LANE FLOODS. RESIDENCES ON COUNTY ROAD 1B AND THE LOWER PARTS OF TALL PINES CAMPGROUND ARE FLOODED.
11 FLOOD STAGE. WIDESPREAD FLOODING OF FARMLAND OCCURS ALONG THE RIVER. COUNTY ROUTE 8 AT THE INTERSECTION OF HIGH BRIDGE ROAD IS FLOODED.
Photos
(1) looking upstream
(2) view of gagehouse
(3) looking downstream
About This Location Collapse

Latitude: 42.377778° N, Longitude: 75.406389° 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 29 992.25 ft 1003.25 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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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
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Page last modified: 16-Jul-2014 12:48 AM
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