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Hydrograph River at a Glance Download
Conemaugh River at Johnstown Stage (ft)Flow (kcfs)Highest Observation: 2.82 ft at 5:15AM Mar 25, 2024Highest Observation: 2.82 ft at 5:30AM Mar 25, 2024Highest Observation: 2.82 ft at 5:45AM Mar 25, 2024Highest Observation: 2.82 ft at 6:00AM Mar 25, 2024Observed: 2.81 ft at 6:15AM Mar 25, 2024Observed: 2.81 ft at 6:30AM Mar 25, 2024Observed: 2.81 ft at 6:45AM Mar 25, 2024Observed: 2.81 ft at 7:00AM Mar 25, 2024Highest Observation: 2.82 ft at 7:15AM Mar 25, 2024Observed: 2.81 ft at 7:30AM Mar 25, 2024Observed: 2.81 ft at 7:45AM Mar 25, 2024Observed: 2.81 ft at 8:00AM Mar 25, 2024Observed: 2.81 ft at 8:15AM Mar 25, 2024Observed: 2.81 ft at 8:30AM Mar 25, 2024Observed: 2.81 ft at 8:31AM Mar 25, 2024Observed: 2.81 ft at 8:45AM Mar 25, 2024Observed: 2.81 ft at 9:00AM Mar 25, 2024Observed: 2.8 ft at 9:15AM Mar 25, 2024Observed: 2.8 ft at 9:30AM Mar 25, 2024Observed: 2.8 ft at 9:45AM Mar 25, 2024Observed: 2.8 ft at 10:00AM Mar 25, 2024Observed: 2.79 ft at 10:15AM Mar 25, 2024Observed: 2.79 ft at 10:30AM Mar 25, 2024Observed: 2.79 ft at 10:45AM Mar 25, 2024Observed: 2.78 ft at 11:00AM Mar 25, 2024Observed: 2.79 ft at 11:15AM Mar 25, 2024Observed: 2.8 ft at 11:30AM Mar 25, 2024Observed: 2.79 ft at 11:45AM Mar 25, 2024Observed: 2.78 ft at 12:00PM Mar 25, 2024Observed: 2.79 ft at 12:15PM Mar 25, 2024Observed: 2.79 ft at 12:30PM Mar 25, 2024Observed: 2.79 ft at 12:45PM Mar 25, 2024Observed: 2.79 ft at 1:00PM Mar 25, 2024Observed: 2.78 ft at 1:15PM Mar 25, 2024Observed: 2.8 ft at 1:30PM Mar 25, 2024Observed: 2.79 ft at 1:45PM Mar 25, 2024Observed: 2.79 ft at 2:00PM Mar 25, 2024Observed: 2.78 ft at 2:15PM Mar 25, 2024Observed: 2.79 ft at 2:30PM Mar 25, 2024Observed: 2.79 ft at 2:45PM Mar 25, 2024Observed: 2.79 ft at 3:00PM Mar 25, 2024Observed: 2.78 ft at 3:15PM Mar 25, 2024Observed: 2.8 ft at 3:30PM Mar 25, 2024Observed: 2.79 ft at 3:45PM Mar 25, 2024Observed: 2.78 ft at 4:00PM Mar 25, 2024Observed: 2.79 ft at 4:15PM Mar 25, 2024Observed: 2.78 ft at 4:30PM Mar 25, 2024Observed: 2.79 ft at 4:45PM Mar 25, 2024Observed: 2.78 ft at 5:00PM Mar 25, 2024Observed: 2.78 ft at 5:15PM Mar 25, 2024Observed: 2.8 ft at 5:30PM Mar 25, 2024Observed: 2.78 ft at 5:45PM Mar 25, 2024Observed: 2.78 ft at 6:00PM Mar 25, 2024Observed: 2.77 ft at 6:15PM Mar 25, 2024Observed: 2.79 ft at 6:30PM Mar 25, 2024Observed: 2.78 ft at 6:45PM Mar 25, 2024Observed: 2.78 ft at 7:00PM Mar 25, 2024Observed: 2.78 ft at 7:15PM Mar 25, 2024Observed: 2.77 ft at 7:30PM Mar 25, 2024Observed: 2.77 ft at 7:45PM Mar 25, 2024Observed: 2.76 ft at 8:00PM Mar 25, 2024Observed: 2.76 ft at 8:15PM Mar 25, 2024Observed: 2.76 ft at 8:30PM Mar 25, 2024Observed: 2.76 ft at 8:31PM Mar 25, 2024Observed: 2.76 ft at 8:45PM Mar 25, 2024Observed: 2.76 ft at 9:00PM Mar 25, 2024Observed: 2.76 ft at 9:15PM Mar 25, 2024Observed: 2.76 ft at 9:30PM Mar 25, 2024Observed: 2.76 ft at 9:45PM Mar 25, 2024Observed: 2.75 ft at 10:00PM Mar 25, 2024Observed: 2.75 ft at 10:15PM Mar 25, 2024Observed: 2.74 ft at 10:30PM Mar 25, 2024Observed: 2.74 ft at 10:45PM Mar 25, 2024Observed: 2.74 ft at 11:00PM Mar 25, 2024Observed: 2.74 ft at 11:15PM Mar 25, 2024Observed: 2.74 ft at 11:30PM Mar 25, 2024Observed: 2.73 ft at 11:45PM Mar 25, 2024Observed: 2.74 ft at 12:00AM Mar 26, 2024Observed: 2.74 ft at 12:15AM Mar 26, 2024Observed: 2.73 ft at 12:30AM Mar 26, 2024Observed: 2.73 ft at 12:45AM Mar 26, 2024Observed: 2.73 ft at 1:00AM Mar 26, 2024Observed: 2.74 ft at 1:15AM Mar 26, 2024Observed: 2.73 ft at 1:30AM Mar 26, 2024Observed: 2.73 ft at 1:45AM Mar 26, 2024Observed: 2.73 ft at 2:00AM Mar 26, 2024Observed: 2.73 ft at 2:15AM Mar 26, 2024Observed: 2.73 ft at 2:30AM Mar 26, 2024Observed: 2.73 ft at 2:45AM Mar 26, 2024Observed: 2.73 ft at 3:00AM Mar 26, 2024Observed: 2.73 ft at 3:15AM Mar 26, 2024Observed: 2.73 ft at 3:30AM Mar 26, 2024Observed: 2.72 ft at 3:45AM Mar 26, 2024Observed: 2.73 ft at 4:00AM Mar 26, 2024Observed: 2.73 ft at 4:15AM Mar 26, 2024Observed: 2.73 ft at 4:30AM Mar 26, 2024Observed: 2.72 ft at 4:45AM Mar 26, 2024Observed: 2.72 ft at 5:00AM Mar 26, 2024Observed: 2.72 ft at 5:15AM Mar 26, 2024Observed: 2.72 ft at 5:30AM Mar 26, 2024Observed: 2.72 ft at 5:45AM Mar 26, 2024Observed: 2.72 ft at 6:00AM Mar 26, 2024Observed: 2.71 ft at 6:15AM Mar 26, 2024Observed: 2.71 ft at 6:30AM Mar 26, 2024Observed: 2.71 ft at 6:45AM Mar 26, 2024Observed: 2.71 ft at 7:00AM Mar 26, 2024Observed: 2.71 ft at 7:15AM Mar 26, 2024Observed: 2.71 ft at 7:30AM Mar 26, 2024Observed: 2.7 ft at 7:45AM Mar 26, 2024Observed: 2.7 ft at 8:00AM Mar 26, 2024Observed: 2.7 ft at 8:15AM Mar 26, 2024Observed: 2.7 ft at 8:30AM Mar 26, 2024Observed: 2.7 ft at 8:31AM Mar 26, 2024Observed: 2.71 ft at 8:45AM Mar 26, 2024Observed: 2.7 ft at 9:00AM Mar 26, 2024Observed: 2.7 ft at 9:15AM Mar 26, 2024Observed: 2.7 ft at 9:30AM Mar 26, 2024Observed: 2.7 ft at 9:45AM Mar 26, 2024Observed: 2.7 ft at 10:00AM Mar 26, 2024Observed: 2.71 ft at 10:15AM Mar 26, 2024Observed: 2.71 ft at 10:30AM Mar 26, 2024Observed: 2.7 ft at 10:45AM Mar 26, 2024Observed: 2.7 ft at 11:00AM Mar 26, 2024Observed: 2.71 ft at 11:15AM Mar 26, 2024Observed: 2.7 ft at 11:30AM Mar 26, 2024Observed: 2.7 ft at 11:45AM Mar 26, 2024Observed: 2.7 ft at 12:00PM Mar 26, 2024Observed: 2.7 ft at 12:15PM Mar 26, 2024Observed: 2.7 ft at 12:30PM Mar 26, 2024Observed: 2.7 ft at 12:45PM Mar 26, 2024Observed: 2.7 ft at 1:00PM Mar 26, 2024Observed: 2.7 ft at 1:15PM Mar 26, 2024Observed: 2.7 ft at 1:30PM Mar 26, 2024Observed: 2.7 ft at 1:45PM Mar 26, 2024Observed: 2.7 ft at 2:00PM Mar 26, 2024Observed: 2.7 ft at 2:15PM Mar 26, 2024Observed: 2.7 ft at 2:30PM Mar 26, 2024Observed: 2.7 ft at 2:45PM Mar 26, 2024Observed: 2.71 ft at 3:00PM Mar 26, 2024Observed: 2.69 ft at 3:15PM Mar 26, 2024Observed: 2.69 ft at 3:30PM Mar 26, 2024Observed: 2.69 ft at 3:45PM Mar 26, 2024Observed: 2.69 ft at 4:00PM Mar 26, 2024Observed: 2.69 ft at 4:15PM Mar 26, 2024Observed: 2.69 ft at 4:30PM Mar 26, 2024Observed: 2.7 ft at 4:45PM Mar 26, 2024Observed: 2.7 ft at 5:00PM Mar 26, 2024Observed: 2.7 ft at 5:15PM Mar 26, 2024Observed: 2.7 ft at 5:30PM Mar 26, 2024Observed: 2.69 ft at 5:45PM Mar 26, 2024Observed: 2.69 ft at 6:00PM Mar 26, 2024Observed: 2.69 ft at 6:15PM Mar 26, 2024Observed: 2.68 ft at 6:30PM Mar 26, 2024Observed: 2.68 ft at 6:45PM Mar 26, 2024Observed: 2.68 ft at 7:00PM Mar 26, 2024Observed: 2.68 ft at 7:15PM Mar 26, 2024Observed: 2.67 ft at 7:30PM Mar 26, 2024Observed: 2.67 ft at 7:45PM Mar 26, 2024Observed: 2.67 ft at 8:00PM Mar 26, 2024Observed: 2.67 ft at 8:15PM Mar 26, 2024Observed: 2.67 ft at 8:30PM Mar 26, 2024Observed: 2.67 ft at 8:32PM Mar 26, 2024Observed: 2.68 ft at 8:45PM Mar 26, 2024Observed: 2.68 ft at 9:00PM Mar 26, 2024Observed: 2.67 ft at 9:15PM Mar 26, 2024Observed: 2.67 ft at 9:30PM Mar 26, 2024Observed: 2.67 ft at 9:45PM Mar 26, 2024Observed: 2.67 ft at 10:00PM Mar 26, 2024Observed: 2.67 ft at 10:15PM Mar 26, 2024Observed: 2.68 ft at 10:30PM Mar 26, 2024Observed: 2.68 ft at 10:45PM Mar 26, 2024Observed: 2.68 ft at 11:00PM Mar 26, 2024Observed: 2.67 ft at 11:15PM Mar 26, 2024Observed: 2.67 ft at 11:30PM Mar 26, 2024Observed: 2.67 ft at 11:45PM Mar 26, 2024Observed: 2.67 ft at 12:00AM Mar 27, 2024Observed: 2.67 ft at 12:15AM Mar 27, 2024Observed: 2.67 ft at 12:30AM Mar 27, 2024Observed: 2.67 ft at 12:45AM Mar 27, 2024Observed: 2.67 ft at 1:00AM Mar 27, 2024Observed: 2.67 ft at 1:15AM Mar 27, 2024Observed: 2.67 ft at 1:30AM Mar 27, 2024Observed: 2.67 ft at 1:45AM Mar 27, 2024Observed: 2.67 ft at 2:00AM Mar 27, 2024Observed: 2.67 ft at 2:15AM Mar 27, 2024Observed: 2.66 ft at 2:30AM Mar 27, 2024Observed: 2.67 ft at 2:45AM Mar 27, 2024Observed: 2.67 ft at 3:00AM Mar 27, 2024Observed: 2.66 ft at 3:15AM Mar 27, 2024Observed: 2.66 ft at 3:30AM Mar 27, 2024Observed: 2.66 ft at 3:45AM Mar 27, 2024Observed: 2.66 ft at 4:00AM Mar 27, 2024Observed: 2.67 ft at 4:15AM Mar 27, 2024Observed: 2.66 ft at 4:30AM Mar 27, 2024Observed: 2.67 ft at 4:45AM Mar 27, 2024Observed: 2.66 ft at 5:00AM Mar 27, 2024Observed: 2.67 ft at 5:15AM Mar 27, 2024Observed: 2.67 ft at 5:30AM Mar 27, 2024Observed: 2.67 ft at 5:45AM Mar 27, 2024Observed: 2.67 ft at 6:00AM Mar 27, 2024Observed: 2.66 ft at 6:15AM Mar 27, 2024Observed: 2.67 ft at 6:30AM Mar 27, 2024Observed: 2.66 ft at 6:45AM Mar 27, 2024Observed: 2.67 ft at 7:00AM Mar 27, 2024Observed: 2.66 ft at 7:15AM Mar 27, 2024Observed: 2.66 ft at 7:30AM Mar 27, 2024Observed: 2.67 ft at 7:45AM Mar 27, 2024Observed: 2.66 ft at 8:00AM Mar 27, 2024Observed: 2.67 ft at 8:15AM Mar 27, 2024Observed: 2.67 ft at 8:30AM Mar 27, 2024Observed: 2.67 ft at 8:32AM Mar 27, 2024Observed: 2.67 ft at 8:45AM Mar 27, 2024Observed: 2.66 ft at 9:00AM Mar 27, 2024Observed: 2.66 ft at 9:15AM Mar 27, 2024Observed: 2.66 ft at 9:30AM Mar 27, 2024Observed: 2.66 ft at 9:45AM Mar 27, 2024Observed: 2.67 ft at 10:00AM Mar 27, 2024Observed: 2.66 ft at 10:15AM Mar 27, 2024Observed: 2.66 ft at 10:30AM Mar 27, 2024Observed: 2.66 ft at 10:45AM Mar 27, 2024Observed: 2.66 ft at 11:00AM Mar 27, 2024Observed: 2.66 ft at 11:15AM Mar 27, 2024Observed: 2.66 ft at 11:30AM Mar 27, 2024Observed: 2.65 ft at 11:45AM Mar 27, 2024Observed: 2.66 ft at 12:00PM Mar 27, 2024Observed: 2.66 ft at 12:15PM Mar 27, 2024Observed: 2.67 ft at 12:30PM Mar 27, 2024Observed: 2.66 ft at 12:45PM Mar 27, 2024Observed: 2.66 ft at 1:00PM Mar 27, 2024Observed: 2.65 ft at 1:15PM Mar 27, 2024Observed: 2.65 ft at 1:30PM Mar 27, 2024Observed: 2.66 ft at 1:45PM Mar 27, 2024Observed: 2.65 ft at 2:00PM Mar 27, 2024Observed: 2.66 ft at 2:15PM Mar 27, 2024Observed: 2.66 ft at 2:30PM Mar 27, 2024Observed: 2.66 ft at 2:45PM Mar 27, 2024Observed: 2.67 ft at 3:00PM Mar 27, 2024Observed: 2.66 ft at 3:15PM Mar 27, 2024Observed: 2.66 ft at 3:30PM Mar 27, 2024Observed: 2.66 ft at 3:45PM Mar 27, 2024Observed: 2.66 ft at 4:00PM Mar 27, 2024Observed: 2.66 ft at 4:15PM Mar 27, 2024Observed: 2.66 ft at 4:30PM Mar 27, 2024Observed: 2.66 ft at 4:45PM Mar 27, 2024Observed: 2.66 ft at 5:00PM Mar 27, 2024Observed: 2.66 ft at 5:15PM Mar 27, 2024Observed: 2.67 ft at 5:30PM Mar 27, 2024Observed: 2.67 ft at 5:45PM Mar 27, 2024Observed: 2.67 ft at 6:00PM Mar 27, 2024Observed: 2.67 ft at 6:15PM Mar 27, 2024Observed: 2.67 ft at 6:30PM Mar 27, 2024Observed: 2.67 ft at 6:45PM Mar 27, 2024Observed: 2.66 ft at 7:00PM Mar 27, 2024Observed: 2.66 ft at 7:15PM Mar 27, 2024Observed: 2.66 ft at 7:30PM Mar 27, 2024Observed: 2.65 ft at 7:45PM Mar 27, 2024Observed: 2.66 ft at 8:00PM Mar 27, 2024Observed: 2.66 ft at 8:15PM Mar 27, 2024Observed: 2.65 ft at 8:30PM Mar 27, 2024Observed: 2.65 ft at 8:31PM Mar 27, 2024Observed: 2.66 ft at 8:45PM Mar 27, 2024Observed: 2.66 ft at 9:00PM Mar 27, 2024Observed: 2.66 ft at 9:15PM Mar 27, 2024Observed: 2.66 ft at 9:30PM Mar 27, 2024Observed: 2.65 ft at 9:45PM Mar 27, 2024Observed: 2.65 ft at 10:00PM Mar 27, 2024Observed: 2.65 ft at 10:15PM Mar 27, 2024Observed: 2.64 ft at 10:30PM Mar 27, 2024Observed: 2.65 ft at 10:45PM Mar 27, 2024Observed: 2.65 ft at 11:00PM Mar 27, 2024Observed: 2.65 ft at 11:15PM Mar 27, 2024Observed: 2.65 ft at 11:30PM Mar 27, 2024Observed: 2.65 ft at 11:45PM Mar 27, 2024Observed: 2.65 ft at 12:00AM Mar 28, 2024Observed: 2.65 ft at 12:15AM Mar 28, 2024Observed: 2.65 ft at 12:30AM Mar 28, 2024Observed: 2.65 ft at 12:45AM Mar 28, 2024Observed: 2.65 ft at 1:00AM Mar 28, 2024Observed: 2.65 ft at 1:15AM Mar 28, 2024Observed: 2.64 ft at 1:30AM Mar 28, 2024Observed: 2.64 ft at 1:45AM Mar 28, 2024Observed: 2.64 ft at 2:00AM Mar 28, 2024Observed: 2.64 ft at 2:15AM Mar 28, 2024Observed: 2.63 ft at 2:30AM Mar 28, 2024Observed: 2.63 ft at 2:45AM Mar 28, 2024Observed: 2.63 ft at 3:00AM Mar 28, 2024Observed: 2.63 ft at 3:15AM Mar 28, 2024Observed: 2.64 ft at 3:30AM Mar 28, 2024Observed: 2.63 ft at 3:45AM Mar 28, 2024Observed: 2.63 ft at 4:00AM Mar 28, 2024Observed: 2.63 ft at 4:15AM Mar 28, 2024JHSP1(plotting HGIRG) Graph Created (5:03AM Mar 28, 2024)ObservedLatest observed value: 2.63 ft at 4:15 AM EDT 28-Mar-2024. 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.

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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
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Page last modified: 2-Nov-2020 7:30 PM
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