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Allegheny River At Sharpsburg Lock and Dam (SHRP1)

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NOTE: The above river forecast includes future rainfall/snowmelt. Forecast stages may be different if the actual rainfall/snowmelt is different than the forecast rainfall/snowmelt.
Flood Stage: 21 Feet
Latest Stage: 11.7
Current Warnings/Statements/Advisories:None currently.
at Sharpsburg Lock and Dam
Pool (ft)Flow (kcfs)Observed: 10.4 ft at 6:00AM Sep 22, 2021Observed: 10.4 ft at 7:00AM Sep 22, 2021Observed: 10.4 ft at 8:00AM Sep 22, 2021Observed: 10.4 ft at 9:00AM Sep 22, 2021Observed: 10.4 ft at 10:00AM Sep 22, 2021Observed: 10.4 ft at 11:00AM Sep 22, 2021Observed: 10.4 ft at 12:00PM Sep 22, 2021Observed: 10.4 ft at 1:00PM Sep 22, 2021Observed: 10.4 ft at 2:00PM Sep 22, 2021Observed: 10.4 ft at 3:00PM Sep 22, 2021Observed: 10.4 ft at 4:00PM Sep 22, 2021Observed: 10.4 ft at 5:00PM Sep 22, 2021Observed: 10.4 ft at 6:00PM Sep 22, 2021Observed: 10.4 ft at 7:00PM Sep 22, 2021Observed: 10.4 ft at 8:00PM Sep 22, 2021Observed: 10.4 ft at 9:00PM Sep 22, 2021Observed: 10.4 ft at 10:00PM Sep 22, 2021Observed: 10.4 ft at 11:00PM Sep 22, 2021Observed: 10.7 ft at 4:00AM Sep 23, 2021Observed: 10.7 ft at 5:00AM Sep 23, 2021Observed: 10.7 ft at 6:00AM Sep 23, 2021Observed: 10.7 ft at 7:00AM Sep 23, 2021Observed: 10.7 ft at 8:00AM Sep 23, 2021Observed: 10.7 ft at 9:00AM Sep 23, 2021Observed: 10.7 ft at 10:00AM Sep 23, 2021Observed: 10.7 ft at 11:00AM Sep 23, 2021Observed: 10.8 ft at 12:00PM Sep 23, 2021Observed: 10.8 ft at 1:00PM Sep 23, 2021Observed: 10.8 ft at 2:00PM Sep 23, 2021Observed: 10.8 ft at 3:00PM Sep 23, 2021Observed: 10.8 ft at 4:00PM Sep 23, 2021Observed: 10.9 ft at 5:00PM Sep 23, 2021Observed: 10.9 ft at 6:00PM Sep 23, 2021Observed: 10.9 ft at 7:00PM Sep 23, 2021Observed: 11 ft at 8:00PM Sep 23, 2021Observed: 11 ft at 9:00PM Sep 23, 2021Observed: 11 ft at 10:00PM Sep 23, 2021Observed: 11 ft at 11:00PM Sep 23, 2021Observed: 11 ft at 4:00AM Sep 24, 2021Observed: 11 ft at 5:00AM Sep 24, 2021Observed: 11 ft at 6:00AM Sep 24, 2021Observed: 11.1 ft at 7:00AM Sep 24, 2021Observed: 11.1 ft at 8:00AM Sep 24, 2021Observed: 11.2 ft at 9:00AM Sep 24, 2021Observed: 11.2 ft at 10:00AM Sep 24, 2021Observed: 11.2 ft at 11:00AM Sep 24, 2021Observed: 11.2 ft at 12:00PM Sep 24, 2021Observed: 11.3 ft at 1:00PM Sep 24, 2021Observed: 11.3 ft at 2:00PM Sep 24, 2021Observed: 11.4 ft at 3:00PM Sep 24, 2021Observed: 11.4 ft at 4:00PM Sep 24, 2021Observed: 11.5 ft at 5:00PM Sep 24, 2021Observed: 11.6 ft at 6:00PM Sep 24, 2021Observed: 11.6 ft at 7:00PM Sep 24, 2021Observed: 11.6 ft at 8:00PM Sep 24, 2021Highest Observation: 11.7 ft at 9:00PM Sep 24, 2021Highest Observation: 11.7 ft at 10:00PM Sep 24, 2021Highest Observation: 11.7 ft at 11:00PM Sep 24, 2021Highest Forecast: 11.7 ft 8:00AM Sep 25, 2021Forecast: 11.6 ft 2:00PM Sep 25, 2021Forecast: 11.5 ft 8:00PM Sep 25, 2021Forecast: 11.5 ft 2:00AM Sep 26, 2021Forecast: 11.5 ft 8:00AM Sep 26, 2021Forecast: 11.6 ft 2:00PM Sep 26, 2021Forecast: 11.6 ft 8:00PM Sep 26, 2021Forecast: 11.6 ft 2:00AM Sep 27, 2021Forecast: 11.5 ft 8:00AM Sep 27, 2021Forecast: 11.6 ft 2:00PM Sep 27, 2021Forecast: 11.6 ft 8:00PM Sep 27, 2021Forecast: 11.6 ft 2:00AM Sep 28, 2021Forecast: 11.5 ft 8:00AM Sep 28, 2021Forecast: 11.5 ft 2:00PM Sep 28, 2021Forecast: 11.4 ft 8:00PM Sep 28, 2021Forecast: 11.4 ft 2:00AM Sep 29, 2021Forecast: 11.4 ft 8:00AM Sep 29, 2021SHRP1(plotting HPIRZ) Graph Created (5:02AM Sep 25, 2021)ObservedForecast (issued 12:49AM Sep 25)Latest observed value: 11.7 ft at 11:00 PM EDT 24-Sep-2021. Flood Stage is 21 ft
KML Image
Gauge LocationGauge Map Marker
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

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23.1
13th Street floods in Sharpsburg.
21.7
Trumbull Construction Co on 51st Street floods.
21.3
Flooding begins near the M & M Gas Station on North Main Street in Sharpsburg.
21
Lock wall overtopped.
19
Navigation suspended, lock out of service.
Flood Categories (in feet)
Major Flood Stage: 23
Moderate Flood Stage: 22
Flood Stage: 21
Action Stage: 16.3
Low Stage (in feet): -9999

Historic Crests
(1) 26.90 ft on 06/24/1972
(2) 22.90 ft on 01/20/1996
(3) 22.10 ft on 09/18/2004
(4) 18.50 ft on 03/16/2007
(5) 16.20 ft on 03/24/2007

(P): Preliminary values subject to further review.

Recent Crests
(1) 16.20 ft on 03/24/2007
(2) 18.50 ft on 03/16/2007
(3) 22.10 ft on 09/18/2004
(4) 22.90 ft on 01/20/1996
(5) 26.90 ft on 06/24/1972

(P): Preliminary values subject to further review.

Low Water Records
(1) 0.00 ft on 01/01/1980

Observed and Forecast Stages

Observed Data:
Date (UTC)
Stage
Flow
09/25 03:00
11.7 ft
18.9 kcfs
09/25 02:00
11.7 ft
18.9 kcfs
09/25 01:00
11.7 ft
18.9 kcfs
09/25 00:00
11.6 ft
17.8 kcfs
09/24 23:00
11.6 ft
17.8 kcfs
09/24 22:00
11.6 ft
17.8 kcfs
09/24 21:00
11.5 ft
16.2 kcfs
09/24 20:00
11.4 ft
14.7 kcfs
09/24 19:00
11.4 ft
14.7 kcfs
09/24 18:00
11.3 ft
13.4 kcfs
09/24 17:00
11.3 ft
13.4 kcfs
09/24 16:00
11.2 ft
12.2 kcfs
09/24 15:00
11.2 ft
12.2 kcfs
09/24 14:00
11.2 ft
12.2 kcfs
09/24 13:00
11.2 ft
12.2 kcfs
09/24 12:00
11.1 ft
11 kcfs
09/24 11:00
11.1 ft
11 kcfs
09/24 10:00
11 ft
10 kcfs
09/24 09:00
11 ft
10 kcfs
09/24 08:00
11 ft
10 kcfs
09/24 03:00
11 ft
10 kcfs
09/24 02:00
11 ft
10 kcfs
09/24 01:00
11 ft
10 kcfs
09/24 00:00
11 ft
10 kcfs
09/23 23:00
10.9 ft
9.22 kcfs
09/23 22:00
10.9 ft
9.22 kcfs
09/23 21:00
10.9 ft
9.22 kcfs
09/23 20:00
10.8 ft
8.5 kcfs
09/23 19:00
10.8 ft
8.5 kcfs
09/23 18:00
10.8 ft
8.5 kcfs
09/23 17:00
10.8 ft
8.5 kcfs
09/23 16:00
10.8 ft
8.5 kcfs
09/23 15:00
10.7 ft
7.72 kcfs
09/23 14:00
10.7 ft
7.72 kcfs
09/23 13:00
10.7 ft
7.72 kcfs
09/23 12:00
10.7 ft
7.72 kcfs
09/23 11:00
10.7 ft
7.72 kcfs
09/23 10:00
10.7 ft
7.72 kcfs
09/23 09:00
10.7 ft
7.72 kcfs
09/23 08:00
10.7 ft
7.72 kcfs
09/23 03:00
10.4 ft
5.5 kcfs
09/23 02:00
10.4 ft
5.5 kcfs
09/23 01:00
10.4 ft
5.5 kcfs
09/23 00:00
10.4 ft
5.5 kcfs
09/22 23:00
10.4 ft
5.5 kcfs
09/22 22:00
10.4 ft
5.5 kcfs
09/22 21:00
10.4 ft
5.5 kcfs
09/22 20:00
10.4 ft
5.5 kcfs
09/22 19:00
10.4 ft
5.5 kcfs
09/22 18:00
10.4 ft
5.5 kcfs
09/22 17:00
10.4 ft
5.5 kcfs
09/22 16:00
10.4 ft
5.5 kcfs
09/22 15:00
10.4 ft
5.5 kcfs
09/22 14:00
10.4 ft
5.5 kcfs
09/22 13:00
10.4 ft
5.5 kcfs
09/22 12:00
10.4 ft
5.5 kcfs
09/22 11:00
10.4 ft
5.5 kcfs
09/22 10:00
10.4 ft
5.5 kcfs
09/22 09:00
10.4 ft
5.5 kcfs
09/22 08:00
10.4 ft
5.5 kcfs
09/22 03:00
10.4 ft
5.5 kcfs
09/22 02:00
10.4 ft
5.5 kcfs
09/22 01:00
10.4 ft
5.5 kcfs
09/22 00:00
10.4 ft
5.5 kcfs
09/21 23:00
10.4 ft
5.5 kcfs
09/21 22:00
10.4 ft
5.5 kcfs
09/21 21:00
10.4 ft
5.5 kcfs
09/21 20:00
10.4 ft
5.5 kcfs
09/21 19:00
10.4 ft
5.5 kcfs
09/21 18:00
10.4 ft
5.5 kcfs
09/21 17:00
10.4 ft
5.5 kcfs
09/21 16:00
10.4 ft
5.5 kcfs
09/21 15:00
10.4 ft
5.5 kcfs
09/21 14:00
10.4 ft
5.5 kcfs
09/21 13:00
10.4 ft
5.5 kcfs
09/21 12:00
10.4 ft
5.5 kcfs
09/21 11:00
10.4 ft
5.5 kcfs
09/21 10:00
10.4 ft
5.5 kcfs
09/21 09:00
10.4 ft
5.5 kcfs
09/21 08:00
10.4 ft
5.5 kcfs
09/21 03:00
10.5 ft
6.21 kcfs
09/21 02:00
10.5 ft
6.21 kcfs
09/21 01:00
10.5 ft
6.21 kcfs
09/21 00:00
10.5 ft
6.21 kcfs
09/20 23:00
10.5 ft
6.21 kcfs
09/20 22:00
10.5 ft
6.21 kcfs
09/20 21:00
10.5 ft
6.21 kcfs
09/20 20:00
10.5 ft
6.21 kcfs
09/20 19:00
10.5 ft
6.21 kcfs
09/20 18:00
10.5 ft
6.21 kcfs
09/20 17:00
10.5 ft
6.21 kcfs
09/20 16:00
10.5 ft
6.21 kcfs
09/20 15:00
10.5 ft
6.21 kcfs
09/20 14:00
10.5 ft
6.21 kcfs
09/20 13:00
10.5 ft
6.21 kcfs
09/20 12:00
10.5 ft
6.21 kcfs
09/20 11:00
10.5 ft
6.21 kcfs
09/20 10:00
10.5 ft
6.21 kcfs
09/20 09:00
10.5 ft
6.21 kcfs
09/20 08:00
10.5 ft
6.21 kcfs
09/20 03:00
10.6 ft
7 kcfs
09/20 02:00
10.6 ft
7 kcfs
09/20 01:00
10.6 ft
7 kcfs
09/20 00:00
10.6 ft
7 kcfs
09/19 23:00
10.6 ft
7 kcfs
09/19 22:00
10.6 ft
7 kcfs
09/19 21:00
10.6 ft
7 kcfs
09/19 20:00
10.6 ft
7 kcfs
09/19 19:00
10.6 ft
7 kcfs
09/19 18:00
10.6 ft
7 kcfs
09/19 17:00
10.6 ft
7 kcfs
09/19 16:00
10.6 ft
7 kcfs
09/19 15:00
10.6 ft
7 kcfs
09/19 14:00
10.6 ft
7 kcfs
09/19 13:00
10.6 ft
7 kcfs
09/19 12:00
10.6 ft
7 kcfs
09/19 11:00
10.6 ft
7 kcfs
09/19 10:00
10.6 ft
7 kcfs
09/19 09:00
10.6 ft
7 kcfs
09/19 08:00
10.6 ft
7 kcfs
09/19 03:00
10.7 ft
7.72 kcfs
09/18 16:00
10.6 ft
7 kcfs
09/18 15:00
10.7 ft
7.72 kcfs
09/18 14:00
10.6 ft
7 kcfs
09/18 13:00
10.6 ft
7 kcfs
09/18 12:00
10.6 ft
7 kcfs
09/18 11:00
10.6 ft
7 kcfs
09/18 10:00
10.5 ft
6.21 kcfs
09/18 09:00
10.5 ft
6.21 kcfs
09/18 08:00
10.5 ft
6.21 kcfs
09/18 03:00
10.6 ft
7 kcfs
09/18 02:00
10.6 ft
7 kcfs
09/18 01:00
10.6 ft
7 kcfs
09/18 00:00
10.6 ft
7 kcfs
09/17 23:00
10.6 ft
7 kcfs
09/17 22:00
10.6 ft
7 kcfs
09/17 21:00
10.6 ft
7 kcfs
09/17 20:00
10.6 ft
7 kcfs
09/17 19:00
10.6 ft
7 kcfs
09/17 18:00
10.6 ft
7 kcfs
09/17 17:00
10.3 ft
4.87 kcfs
09/17 16:00
10.3 ft
4.87 kcfs
09/17 15:00
10.5 ft
6.21 kcfs
09/17 14:00
10.5 ft
6.21 kcfs
09/17 13:00
10.5 ft
6.21 kcfs
09/17 12:00
10.5 ft
6.21 kcfs
09/17 11:00
10.5 ft
6.21 kcfs
09/17 10:00
10.5 ft
6.21 kcfs
09/17 09:00
10.5 ft
6.21 kcfs
09/17 08:00
10.5 ft
6.21 kcfs
09/17 03:00
10.6 ft
7 kcfs
09/17 02:00
10.6 ft
7 kcfs
09/17 01:00
10.6 ft
7 kcfs
09/17 00:00
10.6 ft
7 kcfs
09/16 23:00
10.6 ft
7 kcfs
09/16 22:00
10.5 ft
6.21 kcfs
09/16 21:00
10.5 ft
6.21 kcfs
09/16 20:00
10.5 ft
6.21 kcfs
09/16 19:00
10.5 ft
6.21 kcfs
09/16 18:00
10.5 ft
6.21 kcfs
09/16 17:00
10.5 ft
6.21 kcfs
09/16 16:00
10.5 ft
6.21 kcfs
09/16 15:00
10.4 ft
5.5 kcfs
09/16 14:00
10.4 ft
5.5 kcfs
09/16 13:00
10.5 ft
6.21 kcfs
09/16 12:00
10.5 ft
6.21 kcfs
09/16 11:00
10.6 ft
7 kcfs
09/16 10:00
10.6 ft
7 kcfs
09/16 09:00
10.6 ft
7 kcfs
09/16 08:00
10.7 ft
7.72 kcfs
09/16 00:00
10.5 ft
6.21 kcfs
Forecast Data:
Date (UTC)
Stage
Flow
09/25 12:00
11.7 ft
18.9 kcfs
09/25 18:00
11.6 ft
17.8 kcfs
09/26 00:00
11.5 ft
16.2 kcfs
09/26 06:00
11.5 ft
16.2 kcfs
09/26 12:00
11.5 ft
16.2 kcfs
09/26 18:00
11.6 ft
17.8 kcfs
09/27 00:00
11.6 ft
17.8 kcfs
09/27 06:00
11.6 ft
17.8 kcfs
09/27 12:00
11.5 ft
16.2 kcfs
09/27 18:00
11.6 ft
17.8 kcfs
09/28 00:00
11.6 ft
17.8 kcfs
09/28 06:00
11.6 ft
17.8 kcfs
09/28 12:00
11.5 ft
16.2 kcfs
09/28 18:00
11.5 ft
16.2 kcfs
09/29 00:00
11.4 ft
14.7 kcfs
09/29 06:00
11.4 ft
14.7 kcfs
09/29 12:00
11.4 ft
14.7 kcfs

Probabilistic Stage Forecast for Sharpsburg Lock and Dam

Probabilistic Flow Forecast for Sharpsburg Lock and Dam

Stage Exceedance Forecast for Sharpsburg Lock and Dam

Flow Exceedance Forecast for Sharpsburg Lock and Dam

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
Pittsburgh Weather Forecast Office
192 Shafer Road
Moon Township, PA 15108
(412) 262-1591
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Page last modified: 23-Jun-2020 5:17 PM
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