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Weather Forecast Office Philadelphia/Mount Holly, NJ Middle Atlantic River Forecast Center

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Hydrograph River at a Glance Download Weekly Chance of
Exceeding Levels		 Chance of Exceeding Levels
During Entire Period
Schuylkill River at Philadelphia Observed crest: 6.84 ft at 12:30am Nov 21 Observed: 6.84 ft at 12:30am Nov 21 Observed: 6.82 ft at 1:00am Nov 21 Observed: 6.81 ft at 1:30am Nov 21 Observed: 6.79 ft at 2:00am Nov 21 Observed: 6.78 ft at 2:30am Nov 21 Observed: 6.76 ft at 3:00am Nov 21 Observed: 6.75 ft at 3:30am Nov 21 Observed: 6.73 ft at 4:00am Nov 21 Observed: 6.72 ft at 4:30am Nov 21 Observed: 6.7 ft at 5:00am Nov 21 Observed: 6.68 ft at 5:30am Nov 21 Observed: 6.67 ft at 6:00am Nov 21 Observed: 6.67 ft at 6:30am Nov 21 Observed: 6.66 ft at 7:00am Nov 21 Observed: 6.64 ft at 7:30am Nov 21 Observed: 6.64 ft at 8:00am Nov 21 Observed: 6.63 ft at 8:30am Nov 21 Observed: 6.63 ft at 9:00am Nov 21 Observed: 6.63 ft at 9:30am Nov 21 Observed: 6.63 ft at 10:00am Nov 21 Observed: 6.63 ft at 10:30am Nov 21 Observed: 6.63 ft at 11:00am Nov 21 Observed: 6.63 ft at 11:30am Nov 21 Observed: 6.63 ft at 12:00pm Nov 21 Observed: 6.63 ft at 12:30pm Nov 21 Observed: 6.63 ft at 1:00pm Nov 21 Observed: 6.62 ft at 1:30pm Nov 21 Observed: 6.62 ft at 2:00pm Nov 21 Observed: 6.62 ft at 2:30pm Nov 21 Observed: 6.62 ft at 3:00pm Nov 21 Observed: 6.62 ft at 3:30pm Nov 21 Observed: 6.62 ft at 4:00pm Nov 21 Observed: 6.62 ft at 4:30pm Nov 21 Observed: 6.61 ft at 5:00pm Nov 21 Observed: 6.61 ft at 5:30pm Nov 21 Observed: 6.6 ft at 6:00pm Nov 21 Observed: 6.6 ft at 6:30pm Nov 21 Observed: 6.6 ft at 6:31pm Nov 21 Observed: 6.59 ft at 7:00pm Nov 21 Observed: 6.59 ft at 7:30pm Nov 21 Observed: 6.58 ft at 8:00pm Nov 21 Observed: 6.58 ft at 8:30pm Nov 21 Observed: 6.57 ft at 9:00pm Nov 21 Observed: 6.56 ft at 9:30pm Nov 21 Observed: 6.56 ft at 10:00pm Nov 21 Observed: 6.55 ft at 10:30pm Nov 21 Observed: 6.55 ft at 11:00pm Nov 21 Observed: 6.54 ft at 11:30pm Nov 21 Observed: 6.54 ft at 12:00am Nov 22 Observed: 6.53 ft at 12:30am Nov 22 Observed: 6.52 ft at 1:00am Nov 22 Observed: 6.52 ft at 1:30am Nov 22 Observed: 6.51 ft at 2:00am Nov 22 Observed: 6.51 ft at 2:30am Nov 22 Observed: 6.51 ft at 3:00am Nov 22 Observed: 6.5 ft at 3:30am Nov 22 Observed: 6.5 ft at 4:00am Nov 22 Observed: 6.5 ft at 4:30am Nov 22 Observed: 6.49 ft at 5:00am Nov 22 Observed: 6.48 ft at 5:30am Nov 22 Observed: 6.48 ft at 6:00am Nov 22 Observed: 6.48 ft at 6:30am Nov 22 Observed: 6.47 ft at 7:00am Nov 22 Observed: 6.47 ft at 7:30am Nov 22 Observed: 6.46 ft at 8:00am Nov 22 Observed: 6.46 ft at 8:30am Nov 22 Observed: 6.46 ft at 9:00am Nov 22 Observed: 6.45 ft at 9:30am Nov 22 Observed: 6.45 ft at 10:00am Nov 22 Observed: 6.44 ft at 10:30am Nov 22 Observed: 6.44 ft at 11:00am Nov 22 Observed: 6.43 ft at 11:30am Nov 22 Observed: 6.43 ft at 11:31am Nov 22 Observed: 6.42 ft at 12:00pm Nov 22 Observed: 6.42 ft at 12:01pm Nov 22 Observed: 6.42 ft at 12:30pm Nov 22 Observed: 6.42 ft at 1:00pm Nov 22 Observed: 6.42 ft at 1:30pm Nov 22 Observed: 6.41 ft at 2:00pm Nov 22 Observed: 6.4 ft at 2:30pm Nov 22 Observed: 6.4 ft at 3:00pm Nov 22 Observed: 6.4 ft at 3:30pm Nov 22 Observed: 6.4 ft at 4:00pm Nov 22 Observed: 6.4 ft at 4:30pm Nov 22 Observed: 6.39 ft at 5:00pm Nov 22 Observed: 6.39 ft at 5:30pm Nov 22 Observed: 6.39 ft at 6:00pm Nov 22 Observed: 6.39 ft at 6:30pm Nov 22 Observed: 6.39 ft at 7:00pm Nov 22 Observed: 6.39 ft at 7:30pm Nov 22 Observed: 6.38 ft at 8:00pm Nov 22 Observed: 6.38 ft at 8:30pm Nov 22 Observed: 6.38 ft at 9:00pm Nov 22 Observed: 6.38 ft at 9:30pm Nov 22 Observed: 6.38 ft at 10:00pm Nov 22 Observed: 6.36 ft at 10:30pm Nov 22 Observed: 6.36 ft at 11:00pm Nov 22 Observed: 6.36 ft at 11:30pm Nov 22 Observed: 6.36 ft at 12:00am Nov 23 Observed: 6.35 ft at 12:30am Nov 23 Observed: 6.35 ft at 1:00am Nov 23 Observed: 6.35 ft at 1:30am Nov 23 Observed: 6.35 ft at 2:00am Nov 23 Observed: 6.35 ft at 2:30am Nov 23 Observed: 6.34 ft at 3:00am Nov 23 Observed: 6.34 ft at 3:01am Nov 23 Observed: 6.34 ft at 3:30am Nov 23 Observed: 6.34 ft at 4:00am Nov 23 Observed: 6.33 ft at 4:30am Nov 23 Observed: 6.33 ft at 5:00am Nov 23 Observed: 6.33 ft at 5:30am Nov 23 Observed: 6.33 ft at 6:00am Nov 23 Observed: 6.33 ft at 6:30am Nov 23 Observed: 6.33 ft at 7:00am Nov 23 Observed: 6.33 ft at 7:30am Nov 23 Observed: 6.34 ft at 8:00am Nov 23 Observed: 6.34 ft at 8:30am Nov 23 Observed: 6.35 ft at 9:00am Nov 23 Observed: 6.35 ft at 9:30am Nov 23 Observed: 6.35 ft at 10:00am Nov 23 Observed: 6.35 ft at 10:30am Nov 23 Observed: 6.35 ft at 11:00am Nov 23 Observed: 6.35 ft at 11:30am Nov 23 Observed: 6.35 ft at 12:00pm Nov 23 Observed: 6.35 ft at 12:01pm Nov 23 Observed: 6.35 ft at 12:30pm Nov 23 Observed: 6.35 ft at 1:00pm Nov 23 Observed: 6.35 ft at 1:30pm Nov 23 Observed: 6.35 ft at 2:00pm Nov 23 Observed: 6.35 ft at 2:30pm Nov 23 Observed: 6.35 ft at 3:00pm Nov 23 Observed: 6.35 ft at 3:30pm Nov 23 Observed: 6.35 ft at 4:00pm Nov 23 Observed: 6.35 ft at 4:30pm Nov 23 Observed: 6.35 ft at 5:00pm Nov 23 Observed: 6.35 ft at 5:30pm Nov 23 Observed: 6.35 ft at 6:00pm Nov 23 Observed: 6.35 ft at 6:01pm Nov 23 Observed: 6.35 ft at 6:30pm Nov 23 Observed: 6.35 ft at 7:00pm Nov 23 Observed: 6.35 ft at 7:30pm Nov 23 Observed: 6.35 ft at 8:00pm Nov 23 Observed: 6.34 ft at 8:30pm Nov 23 Observed: 6.32 ft at 9:00pm Nov 23 Observed: 6.31 ft at 9:30pm Nov 23 Observed: 6.3 ft at 10:00pm Nov 23 Observed: 6.3 ft at 10:30pm Nov 23 Observed: 6.3 ft at 11:00pm Nov 23 Forecast: 6.4 ft at 1:00pm Nov 23 Forecast: 6.4 ft at 7:00pm Nov 23 Forecast: 6.4 ft at 1:00am Nov 24 Forecast: 6.4 ft at 7:00am Nov 24 Forecast: 6.4 ft at 1:00pm Nov 24 Forecast: 6.4 ft at 7:00pm Nov 24 Forecast: 6.4 ft at 1:00am Nov 25 Forecast: 6.4 ft at 7:00am Nov 25 Forecast: 6.4 ft at 1:00pm Nov 25 Forecast: 6.4 ft at 7:00pm Nov 25 Forecast: 6.4 ft at 1:00am Nov 26 Forecast: 6.3 ft at 7:00am Nov 26 Graph Created (12:38am Nov 24, 2009) Observed Forecast (issued 9:36am Nov 23) USGS--Water Resources of the United States PADP1 (plotting HGIRG) Gage 0 Datum: 5.74 Latest observed value: 6.3 ft at 11:00 PM EST 23-Nov-2009. Flood Stage is 11.0 ft. Stage (ft) Flow (kcfs)
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NOTE: Forecasts for the Schuylkill River at Philadelphia are issued routinely year-round.

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Upstream Gauge - at Norristown Upstream Gauge

Flood Categories (in feet)
Major Flood Stage:15.5
Moderate Flood Stage:13
Flood Stage:11
Action Stage:10

Historical Crests
(1) 17.00 ft on 10/04/1869
(2) 14.80 ft on 03/01/1902
(3) 14.70 ft on 08/24/1933
(4) 14.65 ft on 06/23/1972
(5) 14.57 ft on 06/02/1946
Show More Historical Crests

Low Water Records
(1) 5.4 ft on 09/02/1966
(2) 5.5 ft on 07/29/1965

 Schuylkill River at Philadelphia location map

Flood Impacts Collapse
10.0 LOW LYING AREAS IN THE FLAT ROCK AREA FLOOD. EAST AND WEST RIVER DRIVES IN FAIRMONT PARK ARE CLOSED

About This Location Collapse
Latitude: 39.967800° N, Longitude: 75.188900° W, Horizontal Datum: NAD83

River Stage
Reference Frame		 Gauge Height Flood Stage Uses
NWS stage 0 ft 11 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 5.74 ft 16.74 ft Older USGS topographic maps, NGVD29 benchmarks
MSL N/A N/A Older USGS topographic maps, MSL benchmarks
Other N/A N/A  

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

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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