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Over 200 USGS real-time streamgages used to support NWS river forecasts and warnings are at risk of being discontinued. Click here for more information from the USGS...


NOTE: Gauge readings may be delayed or temporarily unavailable due to satellite communication issues.
Weather Forecast Office State College, PA Middle Atlantic River Forecast Center
Special Weather Statement
View all valid statements/warnings
Hydrograph River at a Glance Download Weekly Chance of
Exceeding Levels		 Chance of Exceeding Levels
During Entire Period
Susquehanna River at Marietta Stage (ft)Flow (kcfs)Highest Observation: 36.23 ft at 9:00PM May 19, 2013Observed: 36.22 ft at 9:30PM May 19, 2013Observed: 36.22 ft at 10:00PM May 19, 2013Observed: 36.21 ft at 10:30PM May 19, 2013Observed: 36.21 ft at 11:00PM May 19, 2013Observed: 36.2 ft at 11:30PM May 19, 2013Observed: 36.2 ft at 12:00AM May 20, 2013Observed: 36.19 ft at 12:30AM May 20, 2013Observed: 36.19 ft at 1:00AM May 20, 2013Observed: 36.18 ft at 1:30AM May 20, 2013Observed: 36.17 ft at 2:00AM May 20, 2013Observed: 36.17 ft at 2:30AM May 20, 2013Observed: 36.16 ft at 3:00AM May 20, 2013Observed: 36.16 ft at 3:15AM May 20, 2013Observed: 36.16 ft at 3:30AM May 20, 2013Observed: 36.15 ft at 4:00AM May 20, 2013Observed: 36.15 ft at 4:30AM May 20, 2013Observed: 36.14 ft at 5:00AM May 20, 2013Observed: 36.13 ft at 5:30AM May 20, 2013Observed: 36.13 ft at 6:00AM May 20, 2013Observed: 36.12 ft at 6:30AM May 20, 2013Observed: 36.11 ft at 7:00AM May 20, 2013Observed: 36.11 ft at 7:30AM May 20, 2013Observed: 36.11 ft at 8:00AM May 20, 2013Observed: 36.1 ft at 8:30AM May 20, 2013Observed: 36.09 ft at 9:00AM May 20, 2013Observed: 36.09 ft at 9:30AM May 20, 2013Observed: 36.09 ft at 10:00AM May 20, 2013Observed: 36.08 ft at 10:30AM May 20, 2013Observed: 36.07 ft at 11:00AM May 20, 2013Observed: 36.07 ft at 11:30AM May 20, 2013Observed: 36.06 ft at 12:00PM May 20, 2013Observed: 36.06 ft at 12:30PM May 20, 2013Observed: 36.05 ft at 1:00PM May 20, 2013Observed: 36.05 ft at 1:30PM May 20, 2013Observed: 36.04 ft at 2:00PM May 20, 2013Observed: 36.04 ft at 2:30PM May 20, 2013Observed: 36.03 ft at 3:00PM May 20, 2013Observed: 36.02 ft at 3:15PM May 20, 2013Observed: 36.02 ft at 3:30PM May 20, 2013Observed: 36.01 ft at 4:00PM May 20, 2013Observed: 36.01 ft at 4:30PM May 20, 2013Observed: 36 ft at 5:00PM May 20, 2013Observed: 35.99 ft at 5:30PM May 20, 2013Observed: 35.99 ft at 6:00PM May 20, 2013Observed: 35.98 ft at 6:30PM May 20, 2013Observed: 35.97 ft at 7:00PM May 20, 2013Observed: 35.97 ft at 7:30PM May 20, 2013Observed: 35.97 ft at 8:00PM May 20, 2013Observed: 35.96 ft at 8:30PM May 20, 2013Observed: 35.95 ft at 9:00PM May 20, 2013Observed: 35.95 ft at 9:30PM May 20, 2013Observed: 35.94 ft at 10:00PM May 20, 2013Observed: 35.93 ft at 10:30PM May 20, 2013Observed: 35.93 ft at 11:00PM May 20, 2013Observed: 35.93 ft at 11:30PM May 20, 2013Observed: 35.92 ft at 12:00AM May 21, 2013Observed: 35.92 ft at 12:30AM May 21, 2013Observed: 35.91 ft at 1:00AM May 21, 2013Observed: 35.91 ft at 1:30AM May 21, 2013Observed: 35.9 ft at 2:00AM May 21, 2013Observed: 35.9 ft at 2:30AM May 21, 2013Observed: 35.89 ft at 3:00AM May 21, 2013Observed: 35.89 ft at 3:15AM May 21, 2013Observed: 35.89 ft at 3:30AM May 21, 2013Observed: 35.89 ft at 4:00AM May 21, 2013Observed: 35.88 ft at 4:30AM May 21, 2013Observed: 35.88 ft at 5:00AM May 21, 2013Observed: 35.87 ft at 5:30AM May 21, 2013Observed: 35.87 ft at 6:00AM May 21, 2013Observed: 35.86 ft at 6:30AM May 21, 2013Observed: 35.86 ft at 7:00AM May 21, 2013Observed: 35.85 ft at 7:30AM May 21, 2013Observed: 35.85 ft at 8:00AM May 21, 2013Observed: 35.85 ft at 8:30AM May 21, 2013Observed: 35.84 ft at 9:00AM May 21, 2013Observed: 35.84 ft at 9:30AM May 21, 2013Observed: 35.84 ft at 10:00AM May 21, 2013Observed: 35.84 ft at 10:30AM May 21, 2013Observed: 35.84 ft at 11:00AM May 21, 2013Observed: 35.82 ft at 11:30AM May 21, 2013Observed: 35.82 ft at 12:00PM May 21, 2013Observed: 35.81 ft at 12:30PM May 21, 2013Observed: 35.81 ft at 1:00PM May 21, 2013Observed: 35.81 ft at 1:30PM May 21, 2013Observed: 35.8 ft at 2:00PM May 21, 2013Observed: 35.8 ft at 2:30PM May 21, 2013Observed: 35.79 ft at 3:00PM May 21, 2013Observed: 35.79 ft at 3:30PM May 21, 2013Observed: 35.79 ft at 4:00PM May 21, 2013Observed: 35.79 ft at 4:30PM May 21, 2013Observed: 35.77 ft at 5:00PM May 21, 2013Observed: 35.77 ft at 5:30PM May 21, 2013Observed: 35.76 ft at 6:00PM May 21, 2013Observed: 35.76 ft at 6:30PM May 21, 2013Observed: 35.75 ft at 7:00PM May 21, 2013Observed: 35.75 ft at 7:30PM May 21, 2013Observed: 35.75 ft at 8:00PM May 21, 2013Observed: 35.74 ft at 8:30PM May 21, 2013Observed: 35.74 ft at 9:00PM May 21, 2013Observed: 35.74 ft at 9:30PM May 21, 2013Observed: 35.74 ft at 10:00PM May 21, 2013Observed: 35.74 ft at 10:30PM May 21, 2013Observed: 35.72 ft at 11:00PM May 21, 2013Observed: 35.72 ft at 11:30PM May 21, 2013Observed: 35.72 ft at 12:00AM May 22, 2013Observed: 35.72 ft at 12:30AM May 22, 2013Observed: 35.72 ft at 1:00AM May 22, 2013Observed: 35.7 ft at 1:30AM May 22, 2013Observed: 35.7 ft at 2:00AM May 22, 2013Observed: 35.69 ft at 2:30AM May 22, 2013Observed: 35.69 ft at 3:00AM May 22, 2013Observed: 35.67 ft at 3:30AM May 22, 2013Observed: 35.67 ft at 4:00AM May 22, 2013Observed: 35.67 ft at 4:30AM May 22, 2013Observed: 35.66 ft at 5:00AM May 22, 2013Observed: 35.65 ft at 5:30AM May 22, 2013Observed: 35.61 ft at 10:00AM May 22, 2013Observed: 35.61 ft at 10:30AM May 22, 2013Observed: 35.61 ft at 11:00AM May 22, 2013Observed: 35.61 ft at 11:30AM May 22, 2013Observed: 35.61 ft at 12:00PM May 22, 2013Observed: 35.6 ft at 12:30PM May 22, 2013Observed: 35.59 ft at 1:00PM May 22, 2013Observed: 35.59 ft at 1:30PM May 22, 2013Observed: 35.59 ft at 2:00PM May 22, 2013Observed: 35.58 ft at 2:30PM May 22, 2013Observed: 35.58 ft at 3:00PM May 22, 2013Observed: 35.57 ft at 3:30PM May 22, 2013Observed: 35.57 ft at 4:00PM May 22, 2013Observed: 35.57 ft at 4:30PM May 22, 2013Observed: 35.57 ft at 5:00PM May 22, 2013Observed: 35.57 ft at 5:30PM May 22, 2013Observed: 35.56 ft at 6:00PM May 22, 2013Observed: 35.56 ft at 6:30PM May 22, 2013Observed: 35.55 ft at 7:00PM May 22, 2013Observed: 35.55 ft at 7:30PM May 22, 2013Forecast: 35.5 ft 2:00AM May 23, 2013Forecast: 35.5 ft 8:00AM May 23, 2013Forecast: 35.5 ft 2:00PM May 23, 2013Forecast: 35.4 ft 8:00PM May 23, 2013Forecast: 35.5 ft 2:00AM May 24, 2013Forecast: 35.5 ft 8:00AM May 24, 2013Forecast: 35.5 ft 2:00PM May 24, 2013Highest Forecast: 35.6 ft 8:00PM May 24, 2013Highest Forecast: 35.6 ft 2:00AM May 25, 2013Highest Forecast: 35.6 ft 8:00AM May 25, 2013USGS--Water Resources of the United StatesMRTP1(plotting HGIRG) Graph Created (8:31PM May 22, 2013)ObservedForecast (issued 9:31AM May 22)Latest observed value: 35.55 ft at 7:30 PM EDT 22-May-2013. Flood Stage is 49 ft
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About this graph
Tabular Data
XML Data
RSS Files
Datum: Not Available
Metadata
NOTE: Forecasts for the Susquehanna River at Marietta are issued routinely year-round.
Return to Area Map
Upstream Gauge - at Harrisburg Upstream Gauge Downstream Gauge Downstream Gauge - at Conowingo Dam
Flood Categories (in feet)
Major Flood Stage:54
Moderate Flood Stage:52
Flood Stage:49
Action Stage:44

Historical Crests
(1) 64.54 ft on 06/23/1972
(2) 60.73 ft on 03/19/1936
(3) 58.30 ft on 06/02/1889
(4) 58.16 ft on 09/09/2011
(5) 56.80 ft on 01/21/1996
Show More Historical Crests

Low Water Records
(1) 30.89 ft on 09/26/1932
(2) 31.23 ft on 09/27/1964
(3) 31.35 ft on 11/15/1964
(4) 31.43 ft on 09/04/1966
(5) 31.75 ft on 10/21/1980
Legend
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
64 Widespread flooding on both banks affects homes...businesses...and the water and sewage plants.
59 Widespread flooding occurs on both sides of the river. Many homes and businesses are affected by high water. The Wrightsville water supply is affected by flood waters.
56 Widespread flooding occurs on both sides of the river. Many homes and businesses are affected.
54 Numerous homes and businesses in the Columbia and Wrightsville areas are affected by high water. The Wilton Company in Wrightsville experiences problems with high water.
52 A number of residences in the Wrightsville and Columbia areas begin to be affected.
49 Front Street in Wrightsville floods. Low lying areas of Route 624 on the right...or west bank and along Route 441 on the left...or east bank are also affected. Riverside Recreation Area is also inundated.
47 Low lying undeveloped areas on both banks are inundated. A couple of roadways are closed.
44 The right...or west bank overflows. Some roadways are affected.
Photos
(1) looking upstream
(2) view of the gagehouse
(3) looking downstream
About This Location Collapse

Latitude: 40.054444° N, Longitude: 76.531111° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame		 Gauge Height Flood Stage Uses
NWS stage 0 ft 49 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 29 200.6 ft 249.6 ft Older USGS topographic maps, NGVD29 benchmarks
MSL Not Available Not Available Older USGS topographic maps, MSL benchmarks
Other Not Available Not Available  

Other Data Sources:
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Hydrologic Resources Additional Resources
Collaborative Agencies Collapse
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: 13-Mar-2013 6:28 PM 		Disclaimer
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