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Hydrograph River at a Glance Download
West Branch Susquehanna River at Montgomery Stage (ft)MTGP1(plotting HGIRG) Graph Created (2:47PM Jan 16, 2022)Flood Stage is 20 ft
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Datum: Not Available
NOTE: Stage measured manually and reported by river observer. No automated gauge on-site.

NOTE: Forecasts for the West Branch Susquehanna River at Montgomery are issued as needed during times of high water, but are not routinely available.

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Upstream Gauge - near Muncy Upstream Gauge Downstream Gauge Downstream Gauge - at Watsontown
Flood Categories (in feet)
Major Flood Stage: 28
Moderate Flood Stage: 24
Flood Stage: 20
Action Stage: 16
Low Stage (in feet): 0

Historic Crests
(1) 37.50 ft on 06/23/1972
(2) 36.00 ft on 03/18/1936
(3) 33.10 ft on 06/01/1889
(4) 30.70 ft on 05/21/1894
(5) 30.30 ft on 05/28/1946
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(P): Preliminary values subject to further review.

Recent Crests
(1) 20.00 ft on 12/25/2020 (P)
(2) 21.80 ft on 09/11/2018
(3) 26.70 ft on 09/08/2011
(4) 22.20 ft on 04/29/2011
(5) 22.70 ft on 03/11/2011
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
(1) 0.90 ft on 09/13/1983

For more information on your flood risk go to

Zoom Level:15
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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 & Photos Collapse
If you notice any errors in the below information, please contact our Webmaster
30 Numerous homes and businesses are affected by widespread flooding.
28 Numerous homes and businesses are affected by high water.
26 A number of residences are flooded. Several more streets are also affected by high water.
24 Several homes on Broad and Second streets are affected.
22 South Main Street and Ellis Parkway are flooded.
20 Ellis Parkway floods, limiting access to the Riverside Campground office and the campground.
17 The Riverside Campground and the little league complex are affected by high water.
16 River interests are encouraged to monitor conditions for further rises in water levels.
About This Location Collapse

Latitude: 41.169444° N, Longitude: 76.874722° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame
Gauge Height Flood Stage Uses
NWS stage 0 ft 20 ft Interpreting hydrographs and NWS watch, warnings, and forecasts, and inundation maps
Vertical Datum Elevation
(gauge height = 0)
(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 455 ft 475 ft  
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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: 2-Nov-2020 7:30 PM
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