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Hydrograph River at a Glance Download Inundation
Mapping
Susquehanna River at Harrisburg Stage (ft)Flow (kcfs)Observed: 6.78 ft at 12:00AM Apr 14, 2014Observed: 6.79 ft at 12:30AM Apr 14, 2014Observed: 6.78 ft at 1:00AM Apr 14, 2014Observed: 6.78 ft at 1:30AM Apr 14, 2014Observed: 6.79 ft at 2:00AM Apr 14, 2014Observed: 6.78 ft at 2:30AM Apr 14, 2014Observed: 6.78 ft at 3:00AM Apr 14, 2014Observed: 6.78 ft at 3:30AM Apr 14, 2014Observed: 6.77 ft at 4:00AM Apr 14, 2014Observed: 6.77 ft at 4:30AM Apr 14, 2014Observed: 6.77 ft at 5:00AM Apr 14, 2014Observed: 6.77 ft at 5:30AM Apr 14, 2014Observed: 6.77 ft at 6:00AM Apr 14, 2014Observed: 6.76 ft at 6:30AM Apr 14, 2014Observed: 6.77 ft at 7:00AM Apr 14, 2014Observed: 6.76 ft at 7:30AM Apr 14, 2014Observed: 6.76 ft at 8:00AM Apr 14, 2014Observed: 6.76 ft at 8:30AM Apr 14, 2014Observed: 6.75 ft at 9:00AM Apr 14, 2014Observed: 6.74 ft at 9:30AM Apr 14, 2014Observed: 6.74 ft at 10:00AM Apr 14, 2014Observed: 6.74 ft at 10:30AM Apr 14, 2014Observed: 6.74 ft at 11:00AM Apr 14, 2014Observed: 6.72 ft at 11:30AM Apr 14, 2014Observed: 6.72 ft at 11:31AM Apr 14, 2014Observed: 6.73 ft at 12:00PM Apr 14, 2014Observed: 6.72 ft at 12:30PM Apr 14, 2014Observed: 6.71 ft at 1:00PM Apr 14, 2014Observed: 6.71 ft at 1:30PM Apr 14, 2014Observed: 6.71 ft at 2:00PM Apr 14, 2014Observed: 6.7 ft at 2:30PM Apr 14, 2014Observed: 6.68 ft at 3:00PM Apr 14, 2014Observed: 6.69 ft at 3:30PM Apr 14, 2014Observed: 6.68 ft at 4:00PM Apr 14, 2014Observed: 6.67 ft at 4:30PM Apr 14, 2014Observed: 6.67 ft at 5:00PM Apr 14, 2014Observed: 6.66 ft at 5:30PM Apr 14, 2014Observed: 6.66 ft at 6:00PM Apr 14, 2014Observed: 6.66 ft at 6:30PM Apr 14, 2014Observed: 6.65 ft at 7:00PM Apr 14, 2014Observed: 6.64 ft at 7:30PM Apr 14, 2014Observed: 6.64 ft at 8:00PM Apr 14, 2014Observed: 6.63 ft at 8:30PM Apr 14, 2014Observed: 6.63 ft at 9:00PM Apr 14, 2014Observed: 6.62 ft at 9:30PM Apr 14, 2014Observed: 6.61 ft at 10:00PM Apr 14, 2014Observed: 6.6 ft at 10:30PM Apr 14, 2014Observed: 6.59 ft at 11:00PM Apr 14, 2014Observed: 6.59 ft at 11:30PM Apr 14, 2014Observed: 6.59 ft at 12:00AM Apr 15, 2014Observed: 6.58 ft at 12:30AM Apr 15, 2014Observed: 6.58 ft at 1:00AM Apr 15, 2014Observed: 6.56 ft at 1:30AM Apr 15, 2014Observed: 6.56 ft at 2:00AM Apr 15, 2014Observed: 6.55 ft at 2:30AM Apr 15, 2014Observed: 6.54 ft at 3:00AM Apr 15, 2014Observed: 6.54 ft at 3:30AM Apr 15, 2014Observed: 6.54 ft at 4:00AM Apr 15, 2014Observed: 6.53 ft at 4:30AM Apr 15, 2014Observed: 6.53 ft at 5:00AM Apr 15, 2014Observed: 6.52 ft at 5:30AM Apr 15, 2014Observed: 6.52 ft at 6:00AM Apr 15, 2014Observed: 6.51 ft at 6:30AM Apr 15, 2014Observed: 6.51 ft at 7:00AM Apr 15, 2014Observed: 6.52 ft at 7:30AM Apr 15, 2014Observed: 6.52 ft at 8:00AM Apr 15, 2014Observed: 6.53 ft at 8:30AM Apr 15, 2014Observed: 6.53 ft at 9:00AM Apr 15, 2014Observed: 6.53 ft at 9:30AM Apr 15, 2014Observed: 6.53 ft at 10:00AM Apr 15, 2014Observed: 6.54 ft at 10:30AM Apr 15, 2014Observed: 6.54 ft at 11:00AM Apr 15, 2014Observed: 6.53 ft at 11:30AM Apr 15, 2014Observed: 6.53 ft at 11:31AM Apr 15, 2014Observed: 6.53 ft at 12:00PM Apr 15, 2014Observed: 6.54 ft at 12:30PM Apr 15, 2014Observed: 6.54 ft at 1:00PM Apr 15, 2014Observed: 6.56 ft at 1:30PM Apr 15, 2014Observed: 6.57 ft at 2:00PM Apr 15, 2014Observed: 6.58 ft at 2:30PM Apr 15, 2014Observed: 6.6 ft at 3:00PM Apr 15, 2014Observed: 6.61 ft at 3:30PM Apr 15, 2014Observed: 6.62 ft at 4:00PM Apr 15, 2014Observed: 6.63 ft at 4:30PM Apr 15, 2014Observed: 6.65 ft at 5:00PM Apr 15, 2014Observed: 6.66 ft at 5:30PM Apr 15, 2014Observed: 6.69 ft at 6:00PM Apr 15, 2014Observed: 6.72 ft at 6:30PM Apr 15, 2014Observed: 6.74 ft at 7:00PM Apr 15, 2014Observed: 6.75 ft at 7:30PM Apr 15, 2014Observed: 6.78 ft at 8:00PM Apr 15, 2014Observed: 6.79 ft at 8:30PM Apr 15, 2014Observed: 6.81 ft at 9:00PM Apr 15, 2014Observed: 6.82 ft at 9:30PM Apr 15, 2014Observed: 6.83 ft at 10:00PM Apr 15, 2014Observed: 6.83 ft at 10:30PM Apr 15, 2014Observed: 6.84 ft at 11:00PM Apr 15, 2014Observed: 6.85 ft at 11:30PM Apr 15, 2014Observed: 6.86 ft at 12:00AM Apr 16, 2014Observed: 6.87 ft at 12:30AM Apr 16, 2014Observed: 6.88 ft at 1:00AM Apr 16, 2014Observed: 6.9 ft at 1:30AM Apr 16, 2014Observed: 6.91 ft at 2:00AM Apr 16, 2014Observed: 6.93 ft at 2:30AM Apr 16, 2014Observed: 6.94 ft at 3:00AM Apr 16, 2014Observed: 6.97 ft at 3:30AM Apr 16, 2014Observed: 6.98 ft at 4:00AM Apr 16, 2014Observed: 6.99 ft at 4:30AM Apr 16, 2014Observed: 7.01 ft at 5:00AM Apr 16, 2014Observed: 7.03 ft at 5:30AM Apr 16, 2014Observed: 7.06 ft at 6:00AM Apr 16, 2014Observed: 7.07 ft at 6:30AM Apr 16, 2014Observed: 7.09 ft at 7:00AM Apr 16, 2014Observed: 7.12 ft at 7:30AM Apr 16, 2014Observed: 7.15 ft at 8:00AM Apr 16, 2014Observed: 7.17 ft at 8:30AM Apr 16, 2014Observed: 7.2 ft at 9:00AM Apr 16, 2014Observed: 7.23 ft at 9:30AM Apr 16, 2014Observed: 7.24 ft at 10:00AM Apr 16, 2014Observed: 7.28 ft at 10:30AM Apr 16, 2014Observed: 7.31 ft at 11:00AM Apr 16, 2014Observed: 7.35 ft at 11:30AM Apr 16, 2014Observed: 7.35 ft at 11:31AM Apr 16, 2014Observed: 7.38 ft at 12:00PM Apr 16, 2014Observed: 7.42 ft at 12:30PM Apr 16, 2014Observed: 7.45 ft at 1:00PM Apr 16, 2014Observed: 7.49 ft at 1:30PM Apr 16, 2014Observed: 7.54 ft at 2:00PM Apr 16, 2014Observed: 7.58 ft at 2:30PM Apr 16, 2014Observed: 7.62 ft at 3:00PM Apr 16, 2014Observed: 7.66 ft at 3:30PM Apr 16, 2014Observed: 7.7 ft at 4:00PM Apr 16, 2014Observed: 7.74 ft at 4:30PM Apr 16, 2014Observed: 7.79 ft at 5:00PM Apr 16, 2014Observed: 7.82 ft at 5:30PM Apr 16, 2014Observed: 7.87 ft at 6:00PM Apr 16, 2014Observed: 7.92 ft at 6:30PM Apr 16, 2014Observed: 7.95 ft at 7:00PM Apr 16, 2014Observed: 8 ft at 7:30PM Apr 16, 2014Observed: 8.04 ft at 8:00PM Apr 16, 2014Observed: 8.08 ft at 8:30PM Apr 16, 2014Observed: 8.12 ft at 9:00PM Apr 16, 2014Observed: 8.15 ft at 9:30PM Apr 16, 2014Observed: 8.19 ft at 10:00PM Apr 16, 2014Observed: 8.23 ft at 10:30PM Apr 16, 2014Highest Observation: 8.27 ft at 11:00PM Apr 16, 2014Forecast: 8.5 ft 2:00AM Apr 17, 2014Forecast: 8.8 ft 8:00AM Apr 17, 2014Forecast: 8.8 ft 2:00PM Apr 17, 2014Highest Forecast: 8.9 ft 8:00PM Apr 17, 2014Highest Forecast: 8.9 ft 2:00AM Apr 18, 2014Highest Forecast: 8.9 ft 8:00AM Apr 18, 2014Forecast: 8.7 ft 2:00PM Apr 18, 2014Forecast: 8.6 ft 8:00PM Apr 18, 2014Forecast: 8.4 ft 2:00AM Apr 19, 2014Forecast: 8.2 ft 8:00AM Apr 19, 2014Forecast: 7.9 ft 2:00PM Apr 19, 2014Forecast: 7.7 ft 8:00PM Apr 19, 2014USGS--Water Resources of the United StatesHARP1(plotting HGIRG) Graph Created (11:46PM Apr 16, 2014)ObservedForecast (issued 9:35PM Apr 16)Latest observed value: 8.27 ft at 11:00 PM EDT 16-Apr-2014. Flood Stage is 17 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 Susquehanna River at Harrisburg are issued routinely year-round.
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Upstream Gauge - at Sunbury Upstream Gauge Downstream Gauge Downstream Gauge - at Marietta
Flood Categories (in feet)
Major Flood Stage:23
Moderate Flood Stage:20
Flood Stage:17
Action Stage:11

Historical Crests
(1) 33.27 ft on 06/24/1972
(2) 29.23 ft on 03/19/1936
(3) 26.80 ft on 06/02/1889
(4) 25.70 ft on 05/22/1894
(5) 25.17 ft on 09/09/2011
Show More Historical Crests

Low Water Records
(1) 1.83 ft on 09/13/1964
(2) 2.46 ft on 09/25/1963
(3) 2.48 ft on 11/29/1930
(4) 2.59 ft on 09/28/1959
(5) 2.67 ft on 11/06/1964
Show More Low Water Records
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
32 Widespread flooding occurs on both banks. The square and central business district in Harrisburg begin to be affected.
30 Widespread flooding occurs on both banks.
28 Widespread flooding occurs in the residential sections of Front and Second Streets and in the Shipoke area of Harrisburg.
26 Green and Vaughn Streets flood.
24 The residential section of Front and Second Streets in Harrisburg flood at this level. Cameron Street in Harrisburg floods due to backwater from Paxton Creek.
23 Evacuations are necessary in the Shipoke area of Harrisburg. The water level reaches the corner of Keller and Front Streets.
22.5 US 22/322 in the vicinity of the Dauphin Narrows is impacted by flood waters.
21 Homes on both banks are affected by high water. This is the approximate level of Routes 11 and 15...upstream of the Market Street Bridge.
19 A number of homes in West Fairview...Dauphin...and Harrisburg flood.
17 Basements of residences and businesses on both banks flood. The parking lot on City Island begins to take on water.
15 The recreation area of City Island is evacuated. River interests are encouraged to monitor conditions.
13 The recreation area on City Island is evacuated. River interests are encouraged to monitor conditions.
11 Recreational use of City Island begins to be curtailed. River interests are encouraged to monitor conditions.
Photos
(1) looking upstream
(2) view of the gagehouse
(3) looking downstream
About This Location Collapse

Latitude: 40.254722° N, Longitude: 76.886389° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame
Gauge Height Flood Stage Uses
NWS stage 0 ft 17 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 29 290 ft 307 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
National Weather Service
State College Weather Forecast Office
328 Innovation Boulevard, Suite 330
State College, PA 16803
(814) 231-2408
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Page last modified: 8-Apr-2014 8:38 AM
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