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Hydrograph River at a Glance Download
Conemaugh River at Johnstown Stage (ft)Flow (kcfs)Highest Observation: 1.96 ft at 10:15PM Oct 13, 2017Observed: 1.95 ft at 10:30PM Oct 13, 2017Observed: 1.95 ft at 10:45PM Oct 13, 2017Observed: 1.94 ft at 11:00PM Oct 13, 2017Observed: 1.95 ft at 11:15PM Oct 13, 2017Observed: 1.94 ft at 11:30PM Oct 13, 2017Observed: 1.94 ft at 11:45PM Oct 13, 2017Observed: 1.94 ft at 12:00AM Oct 14, 2017Observed: 1.94 ft at 12:15AM Oct 14, 2017Observed: 1.94 ft at 12:30AM Oct 14, 2017Observed: 1.94 ft at 12:45AM Oct 14, 2017Observed: 1.93 ft at 1:00AM Oct 14, 2017Observed: 1.94 ft at 1:15AM Oct 14, 2017Observed: 1.93 ft at 1:30AM Oct 14, 2017Observed: 1.93 ft at 1:45AM Oct 14, 2017Observed: 1.92 ft at 2:00AM Oct 14, 2017Observed: 1.92 ft at 2:15AM Oct 14, 2017Observed: 1.92 ft at 2:30AM Oct 14, 2017Observed: 1.92 ft at 2:45AM Oct 14, 2017Observed: 1.92 ft at 3:00AM Oct 14, 2017Observed: 1.92 ft at 3:15AM Oct 14, 2017Observed: 1.91 ft at 3:30AM Oct 14, 2017Observed: 1.91 ft at 3:45AM Oct 14, 2017Observed: 1.9 ft at 4:00AM Oct 14, 2017Observed: 1.91 ft at 4:15AM Oct 14, 2017Observed: 1.9 ft at 4:30AM Oct 14, 2017Observed: 1.9 ft at 4:45AM Oct 14, 2017Observed: 1.89 ft at 5:00AM Oct 14, 2017Observed: 1.89 ft at 5:15AM Oct 14, 2017Observed: 1.9 ft at 5:30AM Oct 14, 2017Observed: 1.9 ft at 5:45AM Oct 14, 2017Observed: 1.89 ft at 6:00AM Oct 14, 2017Observed: 1.89 ft at 6:15AM Oct 14, 2017Observed: 1.89 ft at 6:30AM Oct 14, 2017Observed: 1.89 ft at 6:45AM Oct 14, 2017Observed: 1.89 ft at 7:00AM Oct 14, 2017Observed: 1.89 ft at 7:15AM Oct 14, 2017Observed: 1.88 ft at 7:30AM Oct 14, 2017Observed: 1.88 ft at 7:45AM Oct 14, 2017Observed: 1.88 ft at 8:00AM Oct 14, 2017Observed: 1.88 ft at 8:15AM Oct 14, 2017Observed: 1.88 ft at 8:30AM Oct 14, 2017Observed: 1.88 ft at 8:45AM Oct 14, 2017Observed: 1.87 ft at 9:00AM Oct 14, 2017Observed: 1.88 ft at 9:15AM Oct 14, 2017Observed: 1.88 ft at 9:30AM Oct 14, 2017Observed: 1.87 ft at 9:45AM Oct 14, 2017Observed: 1.87 ft at 10:00AM Oct 14, 2017Observed: 1.86 ft at 10:15AM Oct 14, 2017Observed: 1.86 ft at 10:30AM Oct 14, 2017Observed: 1.86 ft at 10:45AM Oct 14, 2017Observed: 1.85 ft at 11:00AM Oct 14, 2017Observed: 1.85 ft at 11:15AM Oct 14, 2017Observed: 1.85 ft at 11:30AM Oct 14, 2017Observed: 1.85 ft at 11:45AM Oct 14, 2017Observed: 1.85 ft at 12:00PM Oct 14, 2017Observed: 1.84 ft at 12:15PM Oct 14, 2017Observed: 1.85 ft at 12:30PM Oct 14, 2017Observed: 1.85 ft at 12:45PM Oct 14, 2017Observed: 1.84 ft at 1:00PM Oct 14, 2017Observed: 1.85 ft at 1:15PM Oct 14, 2017Observed: 1.84 ft at 1:30PM Oct 14, 2017Observed: 1.84 ft at 1:45PM Oct 14, 2017Observed: 1.84 ft at 2:00PM Oct 14, 2017Observed: 1.84 ft at 2:15PM Oct 14, 2017Observed: 1.83 ft at 2:30PM Oct 14, 2017Observed: 1.83 ft at 2:45PM Oct 14, 2017Observed: 1.83 ft at 3:00PM Oct 14, 2017Observed: 1.83 ft at 3:15PM Oct 14, 2017Observed: 1.83 ft at 3:30PM Oct 14, 2017Observed: 1.83 ft at 3:45PM Oct 14, 2017Observed: 1.83 ft at 4:00PM Oct 14, 2017Observed: 1.82 ft at 4:15PM Oct 14, 2017Observed: 1.82 ft at 4:30PM Oct 14, 2017Observed: 1.82 ft at 4:45PM Oct 14, 2017Observed: 1.83 ft at 5:00PM Oct 14, 2017Observed: 1.82 ft at 5:15PM Oct 14, 2017Observed: 1.82 ft at 5:30PM Oct 14, 2017Observed: 1.82 ft at 5:45PM Oct 14, 2017Observed: 1.82 ft at 6:00PM Oct 14, 2017Observed: 1.82 ft at 6:15PM Oct 14, 2017Observed: 1.81 ft at 6:30PM Oct 14, 2017Observed: 1.82 ft at 6:45PM Oct 14, 2017Observed: 1.82 ft at 7:00PM Oct 14, 2017Observed: 1.82 ft at 7:15PM Oct 14, 2017Observed: 1.82 ft at 7:30PM Oct 14, 2017Observed: 1.82 ft at 7:45PM Oct 14, 2017Observed: 1.81 ft at 8:00PM Oct 14, 2017Observed: 1.81 ft at 8:15PM Oct 14, 2017Observed: 1.81 ft at 8:30PM Oct 14, 2017Observed: 1.81 ft at 8:45PM Oct 14, 2017Observed: 1.8 ft at 9:00PM Oct 14, 2017Observed: 1.8 ft at 9:15PM Oct 14, 2017Observed: 1.81 ft at 9:30PM Oct 14, 2017Observed: 1.81 ft at 9:45PM Oct 14, 2017Observed: 1.81 ft at 10:00PM Oct 14, 2017Observed: 1.8 ft at 10:15PM Oct 14, 2017Observed: 1.8 ft at 10:30PM Oct 14, 2017Observed: 1.8 ft at 10:45PM Oct 14, 2017Observed: 1.8 ft at 11:00PM Oct 14, 2017Observed: 1.8 ft at 11:15PM Oct 14, 2017Observed: 1.8 ft at 11:30PM Oct 14, 2017Observed: 1.8 ft at 11:45PM Oct 14, 2017Observed: 1.79 ft at 12:00AM Oct 15, 2017Observed: 1.79 ft at 12:15AM Oct 15, 2017Observed: 1.79 ft at 12:30AM Oct 15, 2017Observed: 1.78 ft at 12:45AM Oct 15, 2017Observed: 1.79 ft at 1:00AM Oct 15, 2017Observed: 1.79 ft at 1:15AM Oct 15, 2017Observed: 1.79 ft at 1:30AM Oct 15, 2017Observed: 1.79 ft at 1:45AM Oct 15, 2017Observed: 1.79 ft at 2:00AM Oct 15, 2017Observed: 1.78 ft at 2:15AM Oct 15, 2017Observed: 1.79 ft at 2:30AM Oct 15, 2017Observed: 1.78 ft at 2:45AM Oct 15, 2017Observed: 1.78 ft at 3:00AM Oct 15, 2017Observed: 1.78 ft at 3:15AM Oct 15, 2017Observed: 1.78 ft at 3:30AM Oct 15, 2017Observed: 1.78 ft at 3:45AM Oct 15, 2017Observed: 1.78 ft at 4:00AM Oct 15, 2017Observed: 1.78 ft at 4:15AM Oct 15, 2017Observed: 1.78 ft at 4:30AM Oct 15, 2017Observed: 1.77 ft at 4:45AM Oct 15, 2017Observed: 1.77 ft at 5:00AM Oct 15, 2017Observed: 1.77 ft at 5:15AM Oct 15, 2017Observed: 1.76 ft at 5:30AM Oct 15, 2017Observed: 1.77 ft at 5:45AM Oct 15, 2017Observed: 1.77 ft at 6:00AM Oct 15, 2017Observed: 1.78 ft at 6:15AM Oct 15, 2017Observed: 1.77 ft at 6:30AM Oct 15, 2017Observed: 1.77 ft at 6:45AM Oct 15, 2017Observed: 1.76 ft at 7:00AM Oct 15, 2017Observed: 1.76 ft at 7:15AM Oct 15, 2017Observed: 1.77 ft at 7:30AM Oct 15, 2017Observed: 1.76 ft at 7:45AM Oct 15, 2017Observed: 1.76 ft at 8:00AM Oct 15, 2017Observed: 1.76 ft at 8:15AM Oct 15, 2017Observed: 1.76 ft at 8:30AM Oct 15, 2017Observed: 1.76 ft at 8:45AM Oct 15, 2017Observed: 1.76 ft at 9:00AM Oct 15, 2017Observed: 1.76 ft at 9:15AM Oct 15, 2017Observed: 1.76 ft at 9:30AM Oct 15, 2017Observed: 1.75 ft at 9:45AM Oct 15, 2017Observed: 1.75 ft at 10:00AM Oct 15, 2017Observed: 1.76 ft at 10:15AM Oct 15, 2017Observed: 1.75 ft at 10:30AM Oct 15, 2017Observed: 1.75 ft at 10:45AM Oct 15, 2017Observed: 1.76 ft at 11:00AM Oct 15, 2017Observed: 1.75 ft at 11:15AM Oct 15, 2017Observed: 1.76 ft at 11:30AM Oct 15, 2017Observed: 1.75 ft at 11:45AM Oct 15, 2017Observed: 1.75 ft at 12:00PM Oct 15, 2017Observed: 1.75 ft at 12:15PM Oct 15, 2017Observed: 1.75 ft at 12:30PM Oct 15, 2017Observed: 1.75 ft at 12:45PM Oct 15, 2017Observed: 1.75 ft at 1:00PM Oct 15, 2017Observed: 1.75 ft at 1:15PM Oct 15, 2017Observed: 1.74 ft at 1:30PM Oct 15, 2017Observed: 1.75 ft at 1:45PM Oct 15, 2017Observed: 1.74 ft at 2:00PM Oct 15, 2017Observed: 1.74 ft at 2:15PM Oct 15, 2017Observed: 1.75 ft at 2:30PM Oct 15, 2017Observed: 1.74 ft at 2:45PM Oct 15, 2017Observed: 1.74 ft at 3:00PM Oct 15, 2017Observed: 1.74 ft at 3:15PM Oct 15, 2017Observed: 1.73 ft at 3:30PM Oct 15, 2017Observed: 1.75 ft at 3:45PM Oct 15, 2017Observed: 1.74 ft at 4:00PM Oct 15, 2017Observed: 1.73 ft at 4:15PM Oct 15, 2017Observed: 1.74 ft at 4:30PM Oct 15, 2017Observed: 1.74 ft at 4:45PM Oct 15, 2017Observed: 1.73 ft at 5:00PM Oct 15, 2017Observed: 1.73 ft at 5:15PM Oct 15, 2017Observed: 1.73 ft at 5:30PM Oct 15, 2017Observed: 1.74 ft at 5:45PM Oct 15, 2017Observed: 1.74 ft at 6:00PM Oct 15, 2017Observed: 1.74 ft at 6:15PM Oct 15, 2017Observed: 1.74 ft at 6:30PM Oct 15, 2017Observed: 1.74 ft at 6:45PM Oct 15, 2017Observed: 1.74 ft at 7:00PM Oct 15, 2017Observed: 1.73 ft at 7:15PM Oct 15, 2017Observed: 1.74 ft at 7:30PM Oct 15, 2017Observed: 1.74 ft at 7:45PM Oct 15, 2017Observed: 1.74 ft at 8:00PM Oct 15, 2017Observed: 1.75 ft at 8:15PM Oct 15, 2017Observed: 1.8 ft at 8:30PM Oct 15, 2017Observed: 1.82 ft at 8:45PM Oct 15, 2017Observed: 1.82 ft at 9:00PM Oct 15, 2017Observed: 1.85 ft at 9:15PM Oct 15, 2017Observed: 1.86 ft at 9:30PM Oct 15, 2017Observed: 1.88 ft at 9:45PM Oct 15, 2017Observed: 1.88 ft at 10:00PM Oct 15, 2017Observed: 1.87 ft at 10:15PM Oct 15, 2017Observed: 1.86 ft at 10:30PM Oct 15, 2017Observed: 1.85 ft at 10:45PM Oct 15, 2017Observed: 1.84 ft at 11:00PM Oct 15, 2017Observed: 1.83 ft at 11:15PM Oct 15, 2017Observed: 1.82 ft at 11:30PM Oct 15, 2017Observed: 1.81 ft at 11:45PM Oct 15, 2017Observed: 1.81 ft at 12:00AM Oct 16, 2017Observed: 1.8 ft at 12:15AM Oct 16, 2017Observed: 1.8 ft at 12:30AM Oct 16, 2017Observed: 1.79 ft at 12:45AM Oct 16, 2017Observed: 1.8 ft at 1:00AM Oct 16, 2017Observed: 1.79 ft at 1:15AM Oct 16, 2017Observed: 1.8 ft at 1:30AM Oct 16, 2017Observed: 1.8 ft at 1:45AM Oct 16, 2017Observed: 1.8 ft at 2:00AM Oct 16, 2017Observed: 1.79 ft at 2:15AM Oct 16, 2017Observed: 1.8 ft at 2:30AM Oct 16, 2017Observed: 1.8 ft at 2:45AM Oct 16, 2017Observed: 1.81 ft at 3:00AM Oct 16, 2017Observed: 1.8 ft at 3:15AM Oct 16, 2017Observed: 1.79 ft at 3:30AM Oct 16, 2017Observed: 1.79 ft at 3:45AM Oct 16, 2017Observed: 1.79 ft at 4:00AM Oct 16, 2017Observed: 1.79 ft at 4:15AM Oct 16, 2017Observed: 1.79 ft at 4:30AM Oct 16, 2017Observed: 1.8 ft at 4:45AM Oct 16, 2017Observed: 1.8 ft at 5:00AM Oct 16, 2017Observed: 1.8 ft at 5:15AM Oct 16, 2017Observed: 1.8 ft at 5:30AM Oct 16, 2017Observed: 1.81 ft at 5:45AM Oct 16, 2017Observed: 1.81 ft at 6:00AM Oct 16, 2017Observed: 1.81 ft at 6:15AM Oct 16, 2017Observed: 1.81 ft at 6:30AM Oct 16, 2017Observed: 1.8 ft at 6:45AM Oct 16, 2017Observed: 1.82 ft at 7:00AM Oct 16, 2017Observed: 1.81 ft at 7:15AM Oct 16, 2017Observed: 1.81 ft at 7:30AM Oct 16, 2017Observed: 1.81 ft at 7:45AM Oct 16, 2017Observed: 1.79 ft at 8:00AM Oct 16, 2017Observed: 1.81 ft at 8:15AM Oct 16, 2017Observed: 1.8 ft at 8:30AM Oct 16, 2017Observed: 1.8 ft at 8:45AM Oct 16, 2017Observed: 1.8 ft at 9:00AM Oct 16, 2017Observed: 1.8 ft at 9:15AM Oct 16, 2017Observed: 1.8 ft at 9:30AM Oct 16, 2017Observed: 1.8 ft at 9:45AM Oct 16, 2017Observed: 1.8 ft at 10:00AM Oct 16, 2017Observed: 1.81 ft at 10:15AM Oct 16, 2017Observed: 1.8 ft at 10:30AM Oct 16, 2017Observed: 1.8 ft at 10:45AM Oct 16, 2017Observed: 1.79 ft at 11:00AM Oct 16, 2017Observed: 1.8 ft at 11:15AM Oct 16, 2017Observed: 1.8 ft at 11:30AM Oct 16, 2017Observed: 1.79 ft at 11:45AM Oct 16, 2017Observed: 1.8 ft at 12:00PM Oct 16, 2017Observed: 1.8 ft at 12:15PM Oct 16, 2017Observed: 1.8 ft at 12:30PM Oct 16, 2017Observed: 1.79 ft at 12:45PM Oct 16, 2017Observed: 1.8 ft at 1:00PM Oct 16, 2017Observed: 1.8 ft at 1:15PM Oct 16, 2017Observed: 1.8 ft at 1:30PM Oct 16, 2017Observed: 1.81 ft at 1:45PM Oct 16, 2017Observed: 1.79 ft at 2:00PM Oct 16, 2017Observed: 1.81 ft at 2:15PM Oct 16, 2017Observed: 1.8 ft at 2:30PM Oct 16, 2017Observed: 1.8 ft at 2:45PM Oct 16, 2017Observed: 1.8 ft at 3:00PM Oct 16, 2017Observed: 1.8 ft at 3:15PM Oct 16, 2017Observed: 1.8 ft at 3:30PM Oct 16, 2017Observed: 1.8 ft at 3:45PM Oct 16, 2017Observed: 1.8 ft at 4:00PM Oct 16, 2017Observed: 1.8 ft at 4:15PM Oct 16, 2017Observed: 1.79 ft at 4:30PM Oct 16, 2017Observed: 1.79 ft at 4:45PM Oct 16, 2017Observed: 1.78 ft at 5:00PM Oct 16, 2017Observed: 1.79 ft at 5:15PM Oct 16, 2017Observed: 1.79 ft at 5:30PM Oct 16, 2017Observed: 1.79 ft at 5:45PM Oct 16, 2017Observed: 1.79 ft at 6:00PM Oct 16, 2017Observed: 1.79 ft at 6:15PM Oct 16, 2017Observed: 1.78 ft at 6:30PM Oct 16, 2017Observed: 1.78 ft at 6:45PM Oct 16, 2017Observed: 1.77 ft at 7:00PM Oct 16, 2017Observed: 1.78 ft at 7:15PM Oct 16, 2017Observed: 1.78 ft at 7:30PM Oct 16, 2017Observed: 1.78 ft at 7:45PM Oct 16, 2017Observed: 1.78 ft at 8:00PM Oct 16, 2017Observed: 1.79 ft at 8:15PM Oct 16, 2017Observed: 1.79 ft at 8:30PM Oct 16, 2017Observed: 1.8 ft at 8:45PM Oct 16, 2017Observed: 1.8 ft at 9:00PM Oct 16, 2017Observed: 1.78 ft at 9:15PM Oct 16, 2017JHSP1(plotting HGIRG) Graph Created (10:02PM Oct 16, 2017)ObservedLatest observed value: 1.78 ft at 9:15 PM EDT 16-Oct-2017. Flood Stage is 28 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 Conemaugh River at Johnstown are issued as needed during times of high water, but are not routinely available.

Return to Area Map
Downstream Gauge Downstream Gauge - at Seward
Flood Categories (in feet)
Major Flood Stage: 34
Moderate Flood Stage: 30
Flood Stage: 28
Action Stage: 23
Low Stage (in feet): 0

Historic Crests
(1) 41.60 ft on 05/31/1889
(2) 39.00 ft on 03/18/1936
(3) 34.00 ft on 07/20/1977
(4) 30.20 ft on 03/29/1924
(5) 25.30 ft on 01/19/1996

(P): Preliminary values subject to further review.

Recent Crests
(1) 25.30 ft on 01/19/1996
(2) 34.00 ft on 07/20/1977
(3) 39.00 ft on 03/18/1936
(4) 30.20 ft on 03/29/1924
(5) 41.60 ft on 05/31/1889

(P): Preliminary values subject to further review.

Low Water Records
Currently none available.

For more information on your flood risk go to www.floodsmart.gov.

Zoom Level:15
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
41.6 Flood of record from 1889.
34 Flood waters begin to reach the Horner Street Bridge.
33.5 Approximate level of the FEMA 0.2% Annual Chance Flood level (500-year flood).
28 Unprotected areas in the vicinity of the river will flood.
26 High water levels should be monitored for contunued rises.
23.5 Approximate level of the FEMA 1% Annual Chance Flood level (100-year flood).
22.5 Flood waters begin to reach the Coopersdale, or Laurel Avenue Bridge.
20.5 Flood waters begin to reach the Fourth Avenue Bridge and the Bethlehem Steel footbridge.
19 Approximate level of the FEMA 2% Annual Chance Flood level (50-year flood).
10.5 Approximate level of the FEMA 10% Annual Chance Flood level (100-year flood).
About This Location Collapse

Latitude: 40.341389° N, Longitude: 78.926111° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame
Gauge Height Flood Stage Uses
NWS stage 0 ft 28 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 1128.414 ft 1156.414 ft  

Current/Historical Observations:

Additional Information Collapse
Potential River Levels - Used to
Potential River Levels
Used to Estimate the Chance of Flooding and the Range of Possible River Levels
3 Day (SREF) 7 Day (NAEFS) 7 Day (GEFS)
SREF Ensemble NAEFS Ensemble  GEFS Ensemble 

Note: Use the official hydrograph at the top of this web page for river levels within the next 48 hours.

See the Product Description Document link for more details on the interpretation of the 3,7 day graphics. 

Click individual graphics to enlarge.

Resources Collapse
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: 21-Dec-2016 10:38 PM
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