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Hydrograph River at a Glance Download
Conemaugh River at Johnstown Stage (ft)Flow (kcfs)Observed: 1.52 ft at 5:30AM Oct 24, 2020Observed: 1.53 ft at 5:45AM Oct 24, 2020Observed: 1.53 ft at 6:00AM Oct 24, 2020Observed: 1.52 ft at 6:15AM Oct 24, 2020Observed: 1.52 ft at 6:30AM Oct 24, 2020Observed: 1.52 ft at 6:45AM Oct 24, 2020Observed: 1.52 ft at 7:00AM Oct 24, 2020Observed: 1.52 ft at 7:15AM Oct 24, 2020Observed: 1.52 ft at 7:30AM Oct 24, 2020Observed: 1.52 ft at 7:45AM Oct 24, 2020Observed: 1.53 ft at 8:00AM Oct 24, 2020Observed: 1.54 ft at 8:15AM Oct 24, 2020Observed: 1.53 ft at 8:30AM Oct 24, 2020Observed: 1.53 ft at 8:45AM Oct 24, 2020Observed: 1.54 ft at 9:00AM Oct 24, 2020Observed: 1.54 ft at 9:15AM Oct 24, 2020Observed: 1.54 ft at 9:30AM Oct 24, 2020Observed: 1.53 ft at 9:45AM Oct 24, 2020Observed: 1.53 ft at 10:00AM Oct 24, 2020Observed: 1.54 ft at 10:15AM Oct 24, 2020Observed: 1.54 ft at 10:30AM Oct 24, 2020Observed: 1.54 ft at 10:45AM Oct 24, 2020Observed: 1.54 ft at 11:00AM Oct 24, 2020Observed: 1.54 ft at 11:15AM Oct 24, 2020Observed: 1.54 ft at 11:30AM Oct 24, 2020Observed: 1.53 ft at 11:45AM Oct 24, 2020Observed: 1.53 ft at 12:00PM Oct 24, 2020Observed: 1.54 ft at 12:15PM Oct 24, 2020Observed: 1.54 ft at 12:30PM Oct 24, 2020Observed: 1.54 ft at 12:45PM Oct 24, 2020Observed: 1.53 ft at 1:00PM Oct 24, 2020Observed: 1.53 ft at 1:15PM Oct 24, 2020Observed: 1.54 ft at 1:30PM Oct 24, 2020Observed: 1.53 ft at 1:45PM Oct 24, 2020Observed: 1.53 ft at 2:00PM Oct 24, 2020Observed: 1.52 ft at 2:15PM Oct 24, 2020Observed: 1.52 ft at 2:30PM Oct 24, 2020Observed: 1.52 ft at 2:45PM Oct 24, 2020Observed: 1.52 ft at 3:00PM Oct 24, 2020Observed: 1.52 ft at 3:15PM Oct 24, 2020Observed: 1.52 ft at 3:17PM Oct 24, 2020Observed: 1.52 ft at 3:30PM Oct 24, 2020Observed: 1.52 ft at 3:45PM Oct 24, 2020Observed: 1.52 ft at 4:00PM Oct 24, 2020Observed: 1.52 ft at 4:15PM Oct 24, 2020Observed: 1.52 ft at 4:30PM Oct 24, 2020Observed: 1.52 ft at 4:45PM Oct 24, 2020Observed: 1.54 ft at 5:00PM Oct 24, 2020Observed: 1.53 ft at 5:15PM Oct 24, 2020Observed: 1.53 ft at 5:30PM Oct 24, 2020Observed: 1.53 ft at 5:45PM Oct 24, 2020Observed: 1.53 ft at 6:00PM Oct 24, 2020Observed: 1.54 ft at 6:15PM Oct 24, 2020Observed: 1.54 ft at 6:30PM Oct 24, 2020Observed: 1.53 ft at 6:45PM Oct 24, 2020Observed: 1.53 ft at 7:00PM Oct 24, 2020Observed: 1.53 ft at 7:15PM Oct 24, 2020Observed: 1.53 ft at 7:30PM Oct 24, 2020Observed: 1.54 ft at 7:45PM Oct 24, 2020Observed: 1.54 ft at 8:00PM Oct 24, 2020Observed: 1.54 ft at 8:15PM Oct 24, 2020Observed: 1.53 ft at 8:30PM Oct 24, 2020Observed: 1.53 ft at 8:45PM Oct 24, 2020Observed: 1.53 ft at 9:00PM Oct 24, 2020Observed: 1.53 ft at 9:15PM Oct 24, 2020Observed: 1.53 ft at 9:30PM Oct 24, 2020Observed: 1.53 ft at 9:45PM Oct 24, 2020Observed: 1.52 ft at 10:00PM Oct 24, 2020Observed: 1.52 ft at 10:15PM Oct 24, 2020Observed: 1.52 ft at 10:30PM Oct 24, 2020Observed: 1.53 ft at 10:45PM Oct 24, 2020Observed: 1.53 ft at 11:00PM Oct 24, 2020Observed: 1.52 ft at 11:15PM Oct 24, 2020Observed: 1.52 ft at 11:30PM Oct 24, 2020Observed: 1.52 ft at 11:45PM Oct 24, 2020Observed: 1.53 ft at 12:00AM Oct 25, 2020Observed: 1.52 ft at 12:15AM Oct 25, 2020Observed: 1.52 ft at 12:30AM Oct 25, 2020Observed: 1.52 ft at 12:45AM Oct 25, 2020Observed: 1.53 ft at 1:00AM Oct 25, 2020Observed: 1.54 ft at 1:15AM Oct 25, 2020Observed: 1.54 ft at 1:30AM Oct 25, 2020Observed: 1.54 ft at 1:45AM Oct 25, 2020Observed: 1.54 ft at 2:00AM Oct 25, 2020Observed: 1.53 ft at 2:15AM Oct 25, 2020Observed: 1.52 ft at 2:30AM Oct 25, 2020Observed: 1.53 ft at 2:45AM Oct 25, 2020Observed: 1.53 ft at 3:00AM Oct 25, 2020Observed: 1.53 ft at 3:15AM Oct 25, 2020Observed: 1.53 ft at 3:16AM Oct 25, 2020Observed: 1.52 ft at 3:30AM Oct 25, 2020Observed: 1.52 ft at 3:45AM Oct 25, 2020Observed: 1.52 ft at 4:00AM Oct 25, 2020Observed: 1.53 ft at 4:15AM Oct 25, 2020Observed: 1.53 ft at 4:30AM Oct 25, 2020Observed: 1.53 ft at 4:45AM Oct 25, 2020Observed: 1.52 ft at 5:00AM Oct 25, 2020Observed: 1.52 ft at 5:15AM Oct 25, 2020Observed: 1.53 ft at 5:30AM Oct 25, 2020Observed: 1.52 ft at 5:45AM Oct 25, 2020Observed: 1.52 ft at 6:00AM Oct 25, 2020Observed: 1.52 ft at 6:15AM Oct 25, 2020Observed: 1.53 ft at 6:30AM Oct 25, 2020Observed: 1.53 ft at 6:45AM Oct 25, 2020Observed: 1.52 ft at 7:00AM Oct 25, 2020Observed: 1.52 ft at 7:15AM Oct 25, 2020Observed: 1.52 ft at 7:30AM Oct 25, 2020Observed: 1.52 ft at 7:45AM Oct 25, 2020Observed: 1.52 ft at 8:00AM Oct 25, 2020Observed: 1.52 ft at 8:15AM Oct 25, 2020Observed: 1.52 ft at 8:30AM Oct 25, 2020Observed: 1.52 ft at 8:45AM Oct 25, 2020Observed: 1.52 ft at 9:00AM Oct 25, 2020Observed: 1.51 ft at 9:15AM Oct 25, 2020Observed: 1.51 ft at 9:30AM Oct 25, 2020Observed: 1.5 ft at 9:45AM Oct 25, 2020Observed: 1.51 ft at 10:00AM Oct 25, 2020Observed: 1.51 ft at 10:15AM Oct 25, 2020Observed: 1.51 ft at 10:30AM Oct 25, 2020Observed: 1.51 ft at 10:45AM Oct 25, 2020Observed: 1.5 ft at 11:00AM Oct 25, 2020Observed: 1.51 ft at 11:15AM Oct 25, 2020Observed: 1.52 ft at 11:30AM Oct 25, 2020Observed: 1.52 ft at 11:45AM Oct 25, 2020Observed: 1.52 ft at 12:00PM Oct 25, 2020Observed: 1.53 ft at 12:15PM Oct 25, 2020Observed: 1.53 ft at 12:30PM Oct 25, 2020Observed: 1.53 ft at 12:45PM Oct 25, 2020Observed: 1.53 ft at 1:00PM Oct 25, 2020Observed: 1.52 ft at 1:15PM Oct 25, 2020Observed: 1.52 ft at 1:30PM Oct 25, 2020Observed: 1.52 ft at 1:45PM Oct 25, 2020Observed: 1.53 ft at 2:00PM Oct 25, 2020Observed: 1.53 ft at 2:15PM Oct 25, 2020Observed: 1.52 ft at 2:30PM Oct 25, 2020Observed: 1.52 ft at 2:45PM Oct 25, 2020Observed: 1.51 ft at 3:00PM Oct 25, 2020Observed: 1.51 ft at 3:15PM Oct 25, 2020Observed: 1.51 ft at 3:17PM Oct 25, 2020Observed: 1.52 ft at 3:30PM Oct 25, 2020Observed: 1.52 ft at 3:45PM Oct 25, 2020Observed: 1.51 ft at 4:00PM Oct 25, 2020Observed: 1.51 ft at 4:15PM Oct 25, 2020Observed: 1.5 ft at 4:30PM Oct 25, 2020Observed: 1.5 ft at 4:45PM Oct 25, 2020Observed: 1.5 ft at 5:00PM Oct 25, 2020Observed: 1.5 ft at 5:15PM Oct 25, 2020Observed: 1.51 ft at 5:30PM Oct 25, 2020Observed: 1.51 ft at 5:45PM Oct 25, 2020Observed: 1.51 ft at 6:00PM Oct 25, 2020Observed: 1.5 ft at 6:15PM Oct 25, 2020Observed: 1.5 ft at 6:30PM Oct 25, 2020Observed: 1.5 ft at 6:45PM Oct 25, 2020Observed: 1.52 ft at 7:00PM Oct 25, 2020Observed: 1.52 ft at 7:15PM Oct 25, 2020Observed: 1.52 ft at 7:30PM Oct 25, 2020Observed: 1.52 ft at 7:45PM Oct 25, 2020Observed: 1.52 ft at 8:00PM Oct 25, 2020Observed: 1.52 ft at 8:15PM Oct 25, 2020Observed: 1.51 ft at 8:30PM Oct 25, 2020Observed: 1.52 ft at 8:45PM Oct 25, 2020Observed: 1.52 ft at 9:00PM Oct 25, 2020Observed: 1.53 ft at 9:15PM Oct 25, 2020Observed: 1.52 ft at 9:30PM Oct 25, 2020Observed: 1.52 ft at 9:45PM Oct 25, 2020Observed: 1.53 ft at 10:00PM Oct 25, 2020Observed: 1.53 ft at 10:15PM Oct 25, 2020Observed: 1.53 ft at 10:30PM Oct 25, 2020Observed: 1.53 ft at 10:45PM Oct 25, 2020Observed: 1.53 ft at 11:00PM Oct 25, 2020Observed: 1.53 ft at 11:15PM Oct 25, 2020Observed: 1.53 ft at 11:30PM Oct 25, 2020Observed: 1.53 ft at 11:45PM Oct 25, 2020Observed: 1.53 ft at 12:00AM Oct 26, 2020Observed: 1.53 ft at 12:15AM Oct 26, 2020Observed: 1.53 ft at 12:30AM Oct 26, 2020Observed: 1.53 ft at 12:45AM Oct 26, 2020Observed: 1.52 ft at 1:00AM Oct 26, 2020Observed: 1.52 ft at 1:15AM Oct 26, 2020Observed: 1.53 ft at 1:30AM Oct 26, 2020Observed: 1.53 ft at 1:45AM Oct 26, 2020Observed: 1.52 ft at 2:00AM Oct 26, 2020Observed: 1.52 ft at 2:15AM Oct 26, 2020Observed: 1.52 ft at 2:30AM Oct 26, 2020Observed: 1.52 ft at 2:45AM Oct 26, 2020Observed: 1.51 ft at 3:00AM Oct 26, 2020Observed: 1.5 ft at 3:15AM Oct 26, 2020Observed: 1.5 ft at 3:17AM Oct 26, 2020Observed: 1.51 ft at 3:30AM Oct 26, 2020Observed: 1.51 ft at 3:45AM Oct 26, 2020Observed: 1.52 ft at 4:00AM Oct 26, 2020Observed: 1.53 ft at 4:15AM Oct 26, 2020Observed: 1.53 ft at 4:30AM Oct 26, 2020Observed: 1.54 ft at 4:45AM Oct 26, 2020Observed: 1.55 ft at 5:00AM Oct 26, 2020Observed: 1.55 ft at 5:15AM Oct 26, 2020Observed: 1.55 ft at 5:30AM Oct 26, 2020Observed: 1.55 ft at 5:45AM Oct 26, 2020Observed: 1.55 ft at 6:00AM Oct 26, 2020Observed: 1.55 ft at 6:15AM Oct 26, 2020Observed: 1.55 ft at 6:30AM Oct 26, 2020Observed: 1.54 ft at 6:45AM Oct 26, 2020Observed: 1.54 ft at 7:00AM Oct 26, 2020Observed: 1.55 ft at 7:15AM Oct 26, 2020Observed: 1.54 ft at 7:30AM Oct 26, 2020Observed: 1.55 ft at 7:45AM Oct 26, 2020Observed: 1.54 ft at 8:00AM Oct 26, 2020Observed: 1.54 ft at 8:15AM Oct 26, 2020Observed: 1.54 ft at 8:30AM Oct 26, 2020Observed: 1.54 ft at 8:45AM Oct 26, 2020Observed: 1.55 ft at 9:00AM Oct 26, 2020Observed: 1.54 ft at 9:15AM Oct 26, 2020Observed: 1.53 ft at 9:30AM Oct 26, 2020Observed: 1.53 ft at 9:45AM Oct 26, 2020Observed: 1.52 ft at 10:00AM Oct 26, 2020Observed: 1.53 ft at 10:15AM Oct 26, 2020Observed: 1.53 ft at 10:30AM Oct 26, 2020Observed: 1.53 ft at 10:45AM Oct 26, 2020Observed: 1.53 ft at 11:00AM Oct 26, 2020Observed: 1.52 ft at 11:15AM Oct 26, 2020Observed: 1.54 ft at 11:30AM Oct 26, 2020Observed: 1.54 ft at 11:45AM Oct 26, 2020Observed: 1.54 ft at 12:00PM Oct 26, 2020Observed: 1.55 ft at 12:15PM Oct 26, 2020Observed: 1.55 ft at 12:30PM Oct 26, 2020Observed: 1.54 ft at 12:45PM Oct 26, 2020Observed: 1.54 ft at 1:00PM Oct 26, 2020Observed: 1.54 ft at 1:15PM Oct 26, 2020Observed: 1.55 ft at 1:30PM Oct 26, 2020Highest Observation: 1.56 ft at 1:45PM Oct 26, 2020Observed: 1.55 ft at 2:00PM Oct 26, 2020Observed: 1.54 ft at 2:15PM Oct 26, 2020Observed: 1.55 ft at 2:30PM Oct 26, 2020Observed: 1.55 ft at 2:45PM Oct 26, 2020Observed: 1.55 ft at 3:00PM Oct 26, 2020Observed: 1.55 ft at 3:15PM Oct 26, 2020Observed: 1.55 ft at 3:30PM Oct 26, 2020Observed: 1.55 ft at 3:31PM Oct 26, 2020Observed: 1.55 ft at 3:45PM Oct 26, 2020Observed: 1.55 ft at 4:00PM Oct 26, 2020Observed: 1.55 ft at 4:15PM Oct 26, 2020Observed: 1.55 ft at 4:30PM Oct 26, 2020Observed: 1.55 ft at 4:45PM Oct 26, 2020Observed: 1.54 ft at 5:00PM Oct 26, 2020Observed: 1.54 ft at 5:15PM Oct 26, 2020Observed: 1.54 ft at 5:30PM Oct 26, 2020Observed: 1.54 ft at 5:45PM Oct 26, 2020Observed: 1.54 ft at 6:00PM Oct 26, 2020Observed: 1.54 ft at 6:15PM Oct 26, 2020Observed: 1.54 ft at 6:30PM Oct 26, 2020Observed: 1.54 ft at 6:45PM Oct 26, 2020Observed: 1.54 ft at 7:00PM Oct 26, 2020Observed: 1.55 ft at 7:15PM Oct 26, 2020Observed: 1.55 ft at 7:30PM Oct 26, 2020Highest Observation: 1.56 ft at 7:45PM Oct 26, 2020Observed: 1.55 ft at 8:00PM Oct 26, 2020Observed: 1.55 ft at 8:15PM Oct 26, 2020Observed: 1.55 ft at 8:30PM Oct 26, 2020Highest Observation: 1.56 ft at 8:45PM Oct 26, 2020Highest Observation: 1.56 ft at 9:00PM Oct 26, 2020Highest Observation: 1.56 ft at 9:15PM Oct 26, 2020Highest Observation: 1.56 ft at 9:30PM Oct 26, 2020Highest Observation: 1.56 ft at 9:45PM Oct 26, 2020Highest Observation: 1.56 ft at 10:00PM Oct 26, 2020Highest Observation: 1.56 ft at 10:15PM Oct 26, 2020Highest Observation: 1.56 ft at 10:30PM Oct 26, 2020Observed: 1.55 ft at 10:45PM Oct 26, 2020Observed: 1.55 ft at 11:00PM Oct 26, 2020Observed: 1.55 ft at 11:15PM Oct 26, 2020Observed: 1.55 ft at 11:30PM Oct 26, 2020Highest Observation: 1.56 ft at 11:45PM Oct 26, 2020Observed: 1.55 ft at 12:00AM Oct 27, 2020Observed: 1.55 ft at 12:15AM Oct 27, 2020Observed: 1.55 ft at 12:30AM Oct 27, 2020Observed: 1.54 ft at 12:45AM Oct 27, 2020Observed: 1.54 ft at 1:00AM Oct 27, 2020Observed: 1.54 ft at 1:15AM Oct 27, 2020Observed: 1.53 ft at 1:30AM Oct 27, 2020Observed: 1.53 ft at 1:45AM Oct 27, 2020Observed: 1.53 ft at 2:00AM Oct 27, 2020Observed: 1.52 ft at 2:15AM Oct 27, 2020Observed: 1.53 ft at 2:30AM Oct 27, 2020Observed: 1.53 ft at 2:45AM Oct 27, 2020Observed: 1.54 ft at 3:00AM Oct 27, 2020Observed: 1.54 ft at 3:15AM Oct 27, 2020Observed: 1.53 ft at 3:30AM Oct 27, 2020Observed: 1.53 ft at 3:32AM Oct 27, 2020Observed: 1.53 ft at 3:45AM Oct 27, 2020Observed: 1.53 ft at 4:00AM Oct 27, 2020Observed: 1.54 ft at 4:15AM Oct 27, 2020JHSP1(plotting HGIRG) Graph Created (5:17AM Oct 27, 2020)ObservedLatest observed value: 1.54 ft at 4:15 AM EDT 27-Oct-2020. Flood Stage is 28 ft
Printable Image
About this graph
Tabular Data (UTC)
Tabular Data (EDT)
XML Data
RSS Files
Datum: NGVD29
Metadata
NOTE: Stage 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.

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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 1140 1140 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:

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
10 Day (HEFS) 7 Day (NAEFS) 7 Day (GEFS)
HEFS Ensemble NAEFS Ensemble GEFS Ensemble

Note: Use the official hydrograph at the top of this web page for river levels within the next 72 hours.

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: 1-Mar-2019 12:35 AM
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