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Hydrograph River at a Glance Download Weekly Chance of
Exceeding Levels		 Chance of Exceeding Levels
During Entire Period
Tulpehocken Creek at Blue Marsh Dam Observed crest: 285.32 ft at 1:00am Feb 07 Observed: 285.31 ft at 10:30pm Feb 6 Observed: 285.3 ft at 11:00pm Feb 6 Observed: 285.31 ft at 11:30pm Feb 6 Observed: 285.31 ft at 12:00am Feb 7 Observed: 285.31 ft at 12:30am Feb 7 Observed: 285.32 ft at 1:00am Feb 7 Observed: 285.29 ft at 1:30am Feb 7 Observed: 285.29 ft at 2:00am Feb 7 Observed: 285.31 ft at 2:30am Feb 7 Observed: 285.29 ft at 3:00am Feb 7 Observed: 285.29 ft at 3:30am Feb 7 Observed: 285.28 ft at 4:00am Feb 7 Observed: 285.29 ft at 4:30am Feb 7 Observed: 285.28 ft at 5:00am Feb 7 Observed: 285.29 ft at 5:30am Feb 7 Observed: 285.28 ft at 6:00am Feb 7 Observed: 285.3 ft at 6:30am Feb 7 Observed: 285.28 ft at 7:00am Feb 7 Observed: 285.28 ft at 7:30am Feb 7 Observed: 285.27 ft at 8:00am Feb 7 Observed: 285.26 ft at 8:30am Feb 7 Observed: 285.26 ft at 9:00am Feb 7 Observed: 285.26 ft at 9:30am Feb 7 Observed: 285.26 ft at 10:00am Feb 7 Observed: 285.26 ft at 10:30am Feb 7 Observed: 285.27 ft at 11:00am Feb 7 Observed: 285.25 ft at 11:30am Feb 7 Observed: 285.26 ft at 12:00pm Feb 7 Observed: 285.27 ft at 12:30pm Feb 7 Observed: 285.26 ft at 1:00pm Feb 7 Observed: 285.25 ft at 1:30pm Feb 7 Observed: 285.25 ft at 2:00pm Feb 7 Observed: 285.25 ft at 2:30pm Feb 7 Observed: 285.26 ft at 3:00pm Feb 7 Observed: 285.26 ft at 3:30pm Feb 7 Observed: 285.25 ft at 4:00pm Feb 7 Observed: 285.25 ft at 4:30pm Feb 7 Observed: 285.25 ft at 5:00pm Feb 7 Observed: 285.28 ft at 5:30pm Feb 7 Observed: 285.27 ft at 6:00pm Feb 7 Observed: 285.26 ft at 6:30pm Feb 7 Observed: 285.26 ft at 7:00pm Feb 7 Observed: 285.28 ft at 7:30pm Feb 7 Observed: 285.25 ft at 8:00pm Feb 7 Observed: 285.25 ft at 8:30pm Feb 7 Observed: 285.25 ft at 9:00pm Feb 7 Observed: 285.26 ft at 9:30pm Feb 7 Observed: 285.25 ft at 10:00pm Feb 7 Observed: 285.26 ft at 10:30pm Feb 7 Observed: 285.25 ft at 11:00pm Feb 7 Observed: 285.26 ft at 11:30pm Feb 7 Observed: 285.24 ft at 12:00am Feb 8 Observed: 285.26 ft at 12:30am Feb 8 Observed: 285.23 ft at 1:00am Feb 8 Observed: 285.26 ft at 1:30am Feb 8 Observed: 285.23 ft at 2:00am Feb 8 Observed: 285.22 ft at 2:30am Feb 8 Observed: 285.22 ft at 2:31am Feb 8 Observed: 285.22 ft at 3:00am Feb 8 Observed: 285.23 ft at 3:30am Feb 8 Observed: 285.22 ft at 4:00am Feb 8 Observed: 285.21 ft at 4:30am Feb 8 Observed: 285.21 ft at 5:00am Feb 8 Observed: 285.22 ft at 5:30am Feb 8 Observed: 285.23 ft at 6:00am Feb 8 Observed: 285.23 ft at 6:30am Feb 8 Observed: 285.21 ft at 7:00am Feb 8 Observed: 285.21 ft at 7:30am Feb 8 Observed: 285.19 ft at 8:00am Feb 8 Observed: 285.21 ft at 8:30am Feb 8 Observed: 285.22 ft at 9:00am Feb 8 Observed: 285.2 ft at 9:30am Feb 8 Observed: 285.19 ft at 10:00am Feb 8 Observed: 285.19 ft at 10:30am Feb 8 Observed: 285.19 ft at 11:00am Feb 8 Observed: 285.18 ft at 11:30am Feb 8 Observed: 285.18 ft at 12:00pm Feb 8 Observed: 285.17 ft at 12:30pm Feb 8 Observed: 285.17 ft at 1:00pm Feb 8 Observed: 285.18 ft at 1:30pm Feb 8 Observed: 285.19 ft at 2:00pm Feb 8 Observed: 285.18 ft at 2:30pm Feb 8 Observed: 285.18 ft at 3:00pm Feb 8 Observed: 285.18 ft at 3:30pm Feb 8 Observed: 285.17 ft at 4:00pm Feb 8 Observed: 285.18 ft at 4:30pm Feb 8 Observed: 285.18 ft at 5:00pm Feb 8 Observed: 285.17 ft at 5:30pm Feb 8 Observed: 285.18 ft at 6:00pm Feb 8 Observed: 285.17 ft at 6:30pm Feb 8 Observed: 285.18 ft at 7:00pm Feb 8 Observed: 285.18 ft at 7:30pm Feb 8 Observed: 285.19 ft at 8:00pm Feb 8 Observed: 285.18 ft at 8:30pm Feb 8 Observed: 285.16 ft at 9:00pm Feb 8 Observed: 285.17 ft at 9:30pm Feb 8 Observed: 285.17 ft at 10:00pm Feb 8 Observed: 285.17 ft at 10:30pm Feb 8 Observed: 285.18 ft at 11:00pm Feb 8 Observed: 285.15 ft at 11:30pm Feb 8 Observed: 285.17 ft at 12:00am Feb 9 Observed: 285.16 ft at 12:30am Feb 9 Observed: 285.15 ft at 1:00am Feb 9 Observed: 285.17 ft at 1:30am Feb 9 Observed: 285.14 ft at 2:00am Feb 9 Observed: 285.16 ft at 2:30am Feb 9 Observed: 285.16 ft at 2:31am Feb 9 Observed: 285.14 ft at 3:00am Feb 9 Observed: 285.15 ft at 3:30am Feb 9 Observed: 285.16 ft at 4:00am Feb 9 Observed: 285.13 ft at 4:30am Feb 9 Observed: 285.14 ft at 5:00am Feb 9 Observed: 285.12 ft at 5:30am Feb 9 Observed: 285.13 ft at 6:00am Feb 9 Observed: 285.12 ft at 6:30am Feb 9 Observed: 285.12 ft at 7:00am Feb 9 Observed: 285.12 ft at 7:30am Feb 9 Observed: 285.11 ft at 8:00am Feb 9 Observed: 285.1 ft at 8:30am Feb 9 Observed: 285.11 ft at 9:00am Feb 9 Observed: 285.1 ft at 9:30am Feb 9 Observed: 285.1 ft at 10:00am Feb 9 Observed: 285.1 ft at 10:30am Feb 9 Observed: 285.1 ft at 11:00am Feb 9 Observed: 285.09 ft at 11:30am Feb 9 Observed: 285.1 ft at 12:00pm Feb 9 Observed: 285.1 ft at 12:30pm Feb 9 Observed: 285.11 ft at 1:00pm Feb 9 Observed: 285.1 ft at 1:30pm Feb 9 Observed: 285.12 ft at 2:00pm Feb 9 Observed: 285.11 ft at 2:30pm Feb 9 Observed: 285.1 ft at 3:00pm Feb 9 Observed: 285.11 ft at 3:30pm Feb 9 Observed: 285.11 ft at 4:00pm Feb 9 Observed: 285.11 ft at 4:30pm Feb 9 Observed: 285.11 ft at 5:00pm Feb 9 Observed: 285.1 ft at 5:30pm Feb 9 Observed: 285.1 ft at 6:00pm Feb 9 Observed: 285.09 ft at 6:30pm Feb 9 Observed: 285.11 ft at 7:00pm Feb 9 Observed: 285.1 ft at 7:30pm Feb 9 Observed: 285.09 ft at 8:00pm Feb 9 Observed: 285.11 ft at 8:30pm Feb 9 Observed: 285.09 ft at 9:00pm Feb 9 Graph Created (10:38pm Feb 9, 2010) Observed USGS--Water Resources of the United States PLVP1 (plotting HPIRG) Gage 0 Datum: n/a Latest observed value: 285.09 ft at 9:00 PM EST 9-Feb-2010. Flood Stage is 307.0 ft. Pool (ft)
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Tabular Data
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NOTE: Forecasts are not available for the Tulpehocken Creek at Blue Marsh Dam. Only observed stages are available for this point.

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Downstream Gauge Downstream Gauge - below Blue Marsh Dam

Flood Categories (in feet)
Flood Stage:307
Action Stage:306

Historical Crests
Currently none available.

Low Water Records
Currently none available.

Tulpehocken Creek at Blue Marsh Dam location map

Flood Impacts & Photos Collapse
Photos
(1) Blue Marsh Dam & Gage

About This Location Collapse
Latitude: 40.370000° N, Longitude: 76.020000° W, Horizontal Datum: NAD83

River Stage
Reference Frame		 Gauge Height Flood Stage Uses
NWS stage 0 ft 307 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 N/A N/A Survey grade GPS equipment, FEMA flood plain maps, newer USGS topographic maps
NGVD 29 N/A N/A Older USGS topographic maps, NGVD29 benchmarks
MSL N/A N/A Older USGS topographic maps, MSL benchmarks
Other 0 ft 307 ft  

Other Data Sources:
U.S. Geological Survey (USGS) Data and Site Info for Blue Marsh Dam

Additional Information Collapse
ESP Expected Values plot
Probabilistic QPF Trace Ensemble
River Level Exceedence Chart

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
Philadelphia/Mount Holly Weather Forecast Office
732 Woodlane Road
Mount Holly, NJ 08060-9615
(609) 261-6600
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