Skip Navigation Link weather.gov  
NOAA logo - Click to go to the NOAA homepage National Weather Service NWS logo - Click to go to the NWS homepage
Advanced Hydrologic Prediction Service
Image background of Navigation bar Left
Bookmark and Share Navigation Bar End Cap

  
 
Hydrograph River at a Glance Download
Swatara Creek near Hershey Stage (ft)Flow (kcfs)Observed: 2.76 ft at 12:30PM Mar 20, 2017Observed: 2.77 ft at 12:45PM Mar 20, 2017Observed: 2.77 ft at 1:00PM Mar 20, 2017Observed: 2.77 ft at 1:15PM Mar 20, 2017Observed: 2.77 ft at 1:30PM Mar 20, 2017Observed: 2.78 ft at 1:45PM Mar 20, 2017Observed: 2.78 ft at 2:00PM Mar 20, 2017Observed: 2.78 ft at 2:15PM Mar 20, 2017Observed: 2.78 ft at 2:30PM Mar 20, 2017Observed: 2.79 ft at 2:45PM Mar 20, 2017Observed: 2.79 ft at 3:00PM Mar 20, 2017Observed: 2.79 ft at 3:14PM Mar 20, 2017Observed: 2.79 ft at 3:15PM Mar 20, 2017Observed: 2.79 ft at 3:30PM Mar 20, 2017Observed: 2.8 ft at 3:45PM Mar 20, 2017Observed: 2.8 ft at 4:00PM Mar 20, 2017Observed: 2.8 ft at 4:15PM Mar 20, 2017Observed: 2.81 ft at 4:30PM Mar 20, 2017Observed: 2.81 ft at 4:45PM Mar 20, 2017Observed: 2.82 ft at 5:00PM Mar 20, 2017Observed: 2.82 ft at 5:15PM Mar 20, 2017Observed: 2.82 ft at 5:30PM Mar 20, 2017Observed: 2.83 ft at 5:45PM Mar 20, 2017Observed: 2.83 ft at 6:00PM Mar 20, 2017Observed: 2.84 ft at 6:15PM Mar 20, 2017Observed: 2.84 ft at 6:30PM Mar 20, 2017Observed: 2.85 ft at 6:45PM Mar 20, 2017Observed: 2.85 ft at 7:00PM Mar 20, 2017Observed: 2.86 ft at 7:15PM Mar 20, 2017Observed: 2.86 ft at 7:30PM Mar 20, 2017Observed: 2.87 ft at 7:45PM Mar 20, 2017Observed: 2.87 ft at 8:00PM Mar 20, 2017Observed: 2.87 ft at 8:15PM Mar 20, 2017Observed: 2.88 ft at 8:30PM Mar 20, 2017Observed: 2.89 ft at 8:45PM Mar 20, 2017Observed: 2.89 ft at 9:00PM Mar 20, 2017Observed: 2.9 ft at 9:15PM Mar 20, 2017Observed: 2.9 ft at 9:30PM Mar 20, 2017Observed: 2.9 ft at 9:45PM Mar 20, 2017Observed: 2.9 ft at 10:00PM Mar 20, 2017Observed: 2.91 ft at 10:15PM Mar 20, 2017Observed: 2.91 ft at 10:30PM Mar 20, 2017Observed: 2.91 ft at 10:45PM Mar 20, 2017Observed: 2.91 ft at 11:00PM Mar 20, 2017Observed: 2.91 ft at 11:15PM Mar 20, 2017Observed: 2.91 ft at 11:30PM Mar 20, 2017Observed: 2.92 ft at 11:45PM Mar 20, 2017Observed: 2.92 ft at 12:00AM Mar 21, 2017Observed: 2.92 ft at 12:15AM Mar 21, 2017Observed: 2.92 ft at 12:30AM Mar 21, 2017Observed: 2.92 ft at 12:45AM Mar 21, 2017Observed: 2.92 ft at 1:00AM Mar 21, 2017Observed: 2.92 ft at 1:15AM Mar 21, 2017Observed: 2.93 ft at 1:30AM Mar 21, 2017Observed: 2.93 ft at 1:45AM Mar 21, 2017Observed: 2.93 ft at 2:00AM Mar 21, 2017Observed: 2.93 ft at 2:15AM Mar 21, 2017Observed: 2.93 ft at 2:30AM Mar 21, 2017Observed: 2.93 ft at 2:45AM Mar 21, 2017Observed: 2.94 ft at 3:00AM Mar 21, 2017Observed: 2.94 ft at 3:15AM Mar 21, 2017Observed: 2.94 ft at 3:30AM Mar 21, 2017Observed: 2.94 ft at 3:45AM Mar 21, 2017Observed: 2.94 ft at 4:00AM Mar 21, 2017Observed: 2.95 ft at 4:15AM Mar 21, 2017Observed: 2.95 ft at 4:30AM Mar 21, 2017Observed: 2.96 ft at 4:45AM Mar 21, 2017Observed: 2.96 ft at 5:00AM Mar 21, 2017Observed: 2.96 ft at 5:15AM Mar 21, 2017Observed: 2.97 ft at 5:30AM Mar 21, 2017Observed: 2.97 ft at 5:45AM Mar 21, 2017Observed: 2.97 ft at 6:00AM Mar 21, 2017Observed: 2.97 ft at 6:15AM Mar 21, 2017Observed: 2.98 ft at 6:30AM Mar 21, 2017Observed: 2.98 ft at 6:45AM Mar 21, 2017Observed: 2.98 ft at 7:00AM Mar 21, 2017Observed: 2.99 ft at 7:15AM Mar 21, 2017Observed: 3 ft at 7:30AM Mar 21, 2017Observed: 2.99 ft at 7:45AM Mar 21, 2017Observed: 3.01 ft at 8:00AM Mar 21, 2017Observed: 3.01 ft at 8:15AM Mar 21, 2017Observed: 3.02 ft at 8:30AM Mar 21, 2017Observed: 3.02 ft at 8:45AM Mar 21, 2017Observed: 3.02 ft at 9:00AM Mar 21, 2017Observed: 3.03 ft at 9:15AM Mar 21, 2017Observed: 3.03 ft at 9:30AM Mar 21, 2017Observed: 3.03 ft at 9:45AM Mar 21, 2017Observed: 3.03 ft at 10:00AM Mar 21, 2017Observed: 3.04 ft at 10:15AM Mar 21, 2017Observed: 3.04 ft at 10:30AM Mar 21, 2017Observed: 3.05 ft at 10:45AM Mar 21, 2017Observed: 3.05 ft at 11:00AM Mar 21, 2017Observed: 3.05 ft at 11:15AM Mar 21, 2017Observed: 3.05 ft at 11:30AM Mar 21, 2017Observed: 3.05 ft at 11:45AM Mar 21, 2017Observed: 3.06 ft at 12:00PM Mar 21, 2017Observed: 3.06 ft at 12:15PM Mar 21, 2017Observed: 3.06 ft at 12:30PM Mar 21, 2017Observed: 3.06 ft at 12:45PM Mar 21, 2017Observed: 3.06 ft at 1:00PM Mar 21, 2017Observed: 3.07 ft at 1:15PM Mar 21, 2017Observed: 3.07 ft at 1:30PM Mar 21, 2017Observed: 3.07 ft at 1:45PM Mar 21, 2017Observed: 3.08 ft at 2:00PM Mar 21, 2017Observed: 3.08 ft at 2:15PM Mar 21, 2017Observed: 3.09 ft at 2:30PM Mar 21, 2017Observed: 3.09 ft at 2:45PM Mar 21, 2017Observed: 3.1 ft at 3:00PM Mar 21, 2017Observed: 3.1 ft at 3:15PM Mar 21, 2017Observed: 3.11 ft at 3:29PM Mar 21, 2017Observed: 3.11 ft at 3:30PM Mar 21, 2017Observed: 3.11 ft at 3:45PM Mar 21, 2017Observed: 3.12 ft at 4:00PM Mar 21, 2017Observed: 3.12 ft at 4:15PM Mar 21, 2017Observed: 3.13 ft at 4:30PM Mar 21, 2017Observed: 3.14 ft at 4:45PM Mar 21, 2017Observed: 3.15 ft at 5:00PM Mar 21, 2017Observed: 3.16 ft at 5:15PM Mar 21, 2017Observed: 3.17 ft at 5:30PM Mar 21, 2017Observed: 3.18 ft at 5:45PM Mar 21, 2017Observed: 3.18 ft at 6:00PM Mar 21, 2017Observed: 3.2 ft at 6:15PM Mar 21, 2017Observed: 3.2 ft at 6:30PM Mar 21, 2017Observed: 3.21 ft at 6:45PM Mar 21, 2017Observed: 3.22 ft at 7:00PM Mar 21, 2017Observed: 3.23 ft at 7:15PM Mar 21, 2017Observed: 3.24 ft at 7:30PM Mar 21, 2017Observed: 3.24 ft at 7:45PM Mar 21, 2017Observed: 3.24 ft at 8:00PM Mar 21, 2017Observed: 3.25 ft at 8:15PM Mar 21, 2017Observed: 3.26 ft at 8:30PM Mar 21, 2017Observed: 3.26 ft at 8:45PM Mar 21, 2017Observed: 3.26 ft at 9:00PM Mar 21, 2017Observed: 3.27 ft at 9:15PM Mar 21, 2017Observed: 3.27 ft at 9:30PM Mar 21, 2017Observed: 3.27 ft at 9:45PM Mar 21, 2017Observed: 3.28 ft at 10:00PM Mar 21, 2017Observed: 3.28 ft at 10:15PM Mar 21, 2017Observed: 3.28 ft at 10:30PM Mar 21, 2017Observed: 3.29 ft at 10:45PM Mar 21, 2017Observed: 3.29 ft at 11:00PM Mar 21, 2017Observed: 3.3 ft at 11:15PM Mar 21, 2017Observed: 3.3 ft at 11:30PM Mar 21, 2017Observed: 3.3 ft at 11:45PM Mar 21, 2017Observed: 3.3 ft at 12:00AM Mar 22, 2017Observed: 3.32 ft at 12:15AM Mar 22, 2017Observed: 3.32 ft at 12:30AM Mar 22, 2017Observed: 3.33 ft at 12:45AM Mar 22, 2017Observed: 3.34 ft at 1:00AM Mar 22, 2017Observed: 3.35 ft at 1:15AM Mar 22, 2017Observed: 3.36 ft at 1:30AM Mar 22, 2017Observed: 3.37 ft at 1:45AM Mar 22, 2017Observed: 3.37 ft at 2:00AM Mar 22, 2017Observed: 3.38 ft at 2:15AM Mar 22, 2017Observed: 3.4 ft at 2:30AM Mar 22, 2017Observed: 3.42 ft at 2:45AM Mar 22, 2017Observed: 3.43 ft at 3:00AM Mar 22, 2017Observed: 3.44 ft at 3:15AM Mar 22, 2017Observed: 3.45 ft at 3:30AM Mar 22, 2017Observed: 3.46 ft at 3:45AM Mar 22, 2017Observed: 3.48 ft at 4:00AM Mar 22, 2017Observed: 3.5 ft at 4:15AM Mar 22, 2017Observed: 3.51 ft at 4:30AM Mar 22, 2017Observed: 3.53 ft at 4:45AM Mar 22, 2017Observed: 3.55 ft at 5:00AM Mar 22, 2017Observed: 3.56 ft at 5:15AM Mar 22, 2017Observed: 3.57 ft at 5:30AM Mar 22, 2017Observed: 3.59 ft at 5:45AM Mar 22, 2017Observed: 3.6 ft at 6:00AM Mar 22, 2017Observed: 3.61 ft at 6:15AM Mar 22, 2017Observed: 3.63 ft at 6:30AM Mar 22, 2017Observed: 3.64 ft at 6:45AM Mar 22, 2017Observed: 3.66 ft at 7:00AM Mar 22, 2017Observed: 3.68 ft at 7:15AM Mar 22, 2017Observed: 3.68 ft at 7:30AM Mar 22, 2017Observed: 3.68 ft at 7:45AM Mar 22, 2017Observed: 3.7 ft at 8:00AM Mar 22, 2017Observed: 3.71 ft at 8:15AM Mar 22, 2017Observed: 3.7 ft at 8:30AM Mar 22, 2017Observed: 3.71 ft at 8:45AM Mar 22, 2017Observed: 3.71 ft at 9:00AM Mar 22, 2017Observed: 3.72 ft at 9:15AM Mar 22, 2017Observed: 3.73 ft at 9:30AM Mar 22, 2017Observed: 3.71 ft at 9:45AM Mar 22, 2017Observed: 3.73 ft at 10:00AM Mar 22, 2017Observed: 3.73 ft at 10:15AM Mar 22, 2017Highest Observation: 3.74 ft at 10:30AM Mar 22, 2017Highest Observation: 3.74 ft at 10:45AM Mar 22, 2017Observed: 3.73 ft at 11:00AM Mar 22, 2017Highest Observation: 3.74 ft at 11:15AM Mar 22, 2017Observed: 3.73 ft at 11:30AM Mar 22, 2017Highest Observation: 3.74 ft at 11:45AM Mar 22, 2017Observed: 3.72 ft at 12:00PM Mar 22, 2017Observed: 3.73 ft at 12:15PM Mar 22, 2017Observed: 3.72 ft at 12:30PM Mar 22, 2017Observed: 3.72 ft at 12:45PM Mar 22, 2017Observed: 3.71 ft at 1:00PM Mar 22, 2017Observed: 3.72 ft at 1:15PM Mar 22, 2017Observed: 3.71 ft at 1:30PM Mar 22, 2017Observed: 3.7 ft at 1:45PM Mar 22, 2017Observed: 3.69 ft at 2:00PM Mar 22, 2017Observed: 3.7 ft at 2:15PM Mar 22, 2017Observed: 3.69 ft at 2:30PM Mar 22, 2017Observed: 3.69 ft at 2:45PM Mar 22, 2017Observed: 3.67 ft at 3:00PM Mar 22, 2017Observed: 3.68 ft at 3:15PM Mar 22, 2017Observed: 3.66 ft at 3:29PM Mar 22, 2017Observed: 3.66 ft at 3:30PM Mar 22, 2017Observed: 3.66 ft at 3:45PM Mar 22, 2017Observed: 3.65 ft at 4:00PM Mar 22, 2017Observed: 3.65 ft at 4:15PM Mar 22, 2017Observed: 3.65 ft at 4:30PM Mar 22, 2017Observed: 3.64 ft at 4:45PM Mar 22, 2017Observed: 3.63 ft at 5:00PM Mar 22, 2017Observed: 3.63 ft at 5:15PM Mar 22, 2017Observed: 3.63 ft at 5:30PM Mar 22, 2017Observed: 3.62 ft at 5:45PM Mar 22, 2017Observed: 3.61 ft at 6:00PM Mar 22, 2017Observed: 3.6 ft at 6:15PM Mar 22, 2017Observed: 3.59 ft at 6:30PM Mar 22, 2017Observed: 3.58 ft at 6:45PM Mar 22, 2017Observed: 3.58 ft at 7:00PM Mar 22, 2017Observed: 3.57 ft at 7:15PM Mar 22, 2017Observed: 3.57 ft at 7:30PM Mar 22, 2017Observed: 3.56 ft at 7:45PM Mar 22, 2017Observed: 3.55 ft at 8:00PM Mar 22, 2017Observed: 3.54 ft at 8:15PM Mar 22, 2017Observed: 3.53 ft at 8:30PM Mar 22, 2017Observed: 3.53 ft at 8:45PM Mar 22, 2017Observed: 3.52 ft at 9:00PM Mar 22, 2017Observed: 3.51 ft at 9:15PM Mar 22, 2017Observed: 3.51 ft at 9:30PM Mar 22, 2017Observed: 3.5 ft at 9:45PM Mar 22, 2017Observed: 3.5 ft at 10:00PM Mar 22, 2017Observed: 3.49 ft at 10:15PM Mar 22, 2017Observed: 3.48 ft at 10:30PM Mar 22, 2017Observed: 3.48 ft at 10:45PM Mar 22, 2017Observed: 3.47 ft at 11:00PM Mar 22, 2017Observed: 3.47 ft at 11:15PM Mar 22, 2017Observed: 3.45 ft at 11:30PM Mar 22, 2017Observed: 3.45 ft at 11:45PM Mar 22, 2017Observed: 3.44 ft at 12:00AM Mar 23, 2017Observed: 3.44 ft at 12:15AM Mar 23, 2017Observed: 3.43 ft at 12:30AM Mar 23, 2017Observed: 3.43 ft at 12:45AM Mar 23, 2017Observed: 3.42 ft at 1:00AM Mar 23, 2017Observed: 3.42 ft at 1:15AM Mar 23, 2017Observed: 3.41 ft at 1:30AM Mar 23, 2017Observed: 3.4 ft at 1:45AM Mar 23, 2017Observed: 3.4 ft at 2:00AM Mar 23, 2017Observed: 3.39 ft at 2:15AM Mar 23, 2017Observed: 3.39 ft at 2:30AM Mar 23, 2017Observed: 3.38 ft at 2:45AM Mar 23, 2017Observed: 3.37 ft at 3:00AM Mar 23, 2017Observed: 3.37 ft at 3:15AM Mar 23, 2017Observed: 3.36 ft at 3:30AM Mar 23, 2017Observed: 3.36 ft at 3:45AM Mar 23, 2017Observed: 3.35 ft at 4:00AM Mar 23, 2017Observed: 3.34 ft at 4:15AM Mar 23, 2017Observed: 3.34 ft at 4:30AM Mar 23, 2017Observed: 3.33 ft at 4:45AM Mar 23, 2017Observed: 3.33 ft at 5:00AM Mar 23, 2017Observed: 3.32 ft at 5:15AM Mar 23, 2017Observed: 3.32 ft at 5:30AM Mar 23, 2017Observed: 3.31 ft at 5:45AM Mar 23, 2017Observed: 3.31 ft at 6:00AM Mar 23, 2017Observed: 3.3 ft at 6:15AM Mar 23, 2017Observed: 3.3 ft at 6:30AM Mar 23, 2017Observed: 3.29 ft at 6:45AM Mar 23, 2017Observed: 3.29 ft at 7:00AM Mar 23, 2017Observed: 3.28 ft at 7:15AM Mar 23, 2017Observed: 3.28 ft at 7:30AM Mar 23, 2017Observed: 3.27 ft at 7:45AM Mar 23, 2017Observed: 3.27 ft at 8:00AM Mar 23, 2017Observed: 3.26 ft at 8:15AM Mar 23, 2017Observed: 3.26 ft at 8:30AM Mar 23, 2017Observed: 3.25 ft at 8:45AM Mar 23, 2017Observed: 3.25 ft at 9:00AM Mar 23, 2017Observed: 3.25 ft at 9:15AM Mar 23, 2017Observed: 3.24 ft at 9:30AM Mar 23, 2017Observed: 3.23 ft at 9:45AM Mar 23, 2017Observed: 3.23 ft at 10:00AM Mar 23, 2017Observed: 3.22 ft at 10:15AM Mar 23, 2017Observed: 3.22 ft at 10:30AM Mar 23, 2017Observed: 3.21 ft at 10:45AM Mar 23, 2017Observed: 3.21 ft at 11:00AM Mar 23, 2017Observed: 3.2 ft at 11:15AM Mar 23, 2017Observed: 3.2 ft at 11:30AM Mar 23, 2017Observed: 3.2 ft at 11:45AM Mar 23, 2017Forecast: 3.2 ft 2:00PM Mar 23, 2017Forecast: 3.1 ft 8:00PM Mar 23, 2017Forecast: 3 ft 2:00AM Mar 24, 2017Forecast: 2.9 ft 8:00AM Mar 24, 2017Forecast: 2.9 ft 2:00PM Mar 24, 2017Forecast: 2.9 ft 8:00PM Mar 24, 2017Forecast: 3 ft 2:00AM Mar 25, 2017Forecast: 3 ft 8:00AM Mar 25, 2017Forecast: 3.1 ft 2:00PM Mar 25, 2017Forecast: 3.1 ft 8:00PM Mar 25, 2017Forecast: 3.2 ft 2:00AM Mar 26, 2017Highest Forecast: 3.3 ft 8:00AM Mar 26, 2017USGS--Water Resources of the United StatesHERP1(plotting HGIRG) Graph Created (12:17PM Mar 23, 2017)ObservedForecast (issued 9:48AM Mar 23)Latest observed value: 3.2 ft at 11:45 AM EDT 23-Mar-2017. Flood Stage is 7 ft
Printable Image
About this graph
Tabular Data (UTC)
Tabular Data (EDT)
XML Data
RSS Files
Datum: Not Available
Metadata
NOTE: Forecasts for the Swatara Creek near Hershey are issued routinely year-round.
Return to Area Map
Upstream Gauge - at Harper Tavern Upstream Gauge Downstream Gauge Downstream Gauge - at Middletown
Flood Categories (in feet)
Major Flood Stage: 14
Moderate Flood Stage: 10
Flood Stage: 7
Action Stage: 6
Low Stage (in feet): 0

Historic Crests
(1) 26.80 ft on 09/08/2011
(2) 16.12 ft on 06/29/2006
(3) 15.36 ft on 09/27/1975
(4) 14.43 ft on 01/25/1979
(5) 14.30 ft on 01/20/1996
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 7.84 ft on 02/26/2016
(2) 7.08 ft on 05/01/2014
(3) 7.54 ft on 10/12/2013
(4) 7.16 ft on 11/24/2011
(5) 7.16 ft on 11/24/2011
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
(1) 1.20 ft on 07/14/1983
(2) 1.40 ft on 09/15/1980
(3) 1.40 ft on 08/15/1987
(4) 1.44 ft on 09/12/1977
(5) 1.44 ft on 07/17/1988

For more information on your flood risk go to www.floodsmart.gov.

Zoom Level:16
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
16 Numerous homes adjacent to the creek are affected by high water.
14 Numerous homes adjacent to the creek are affected by high water.
12 High water affects several homes upstream of the Route 39 bridge.
10 A few homes adjacent to the creek upstream of the Route 39 bridge flood.
8 The right, or north bank overflows. Several roads are affected.
7 The right, or north bank begins to overflow. Several roadways upstream of the gage are affected by high water.
Photos
(1) looking upstream
(2) view of the gagehouse
(3) looking downstream
About This Location Collapse

Latitude: 40.298333° N, Longitude: 76.668056° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame
Gauge Height Flood Stage Uses
NWS stage 0 ft 7 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 29 325.9 ft 332.9 ft 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
3 Day (SREF) 7 Day (NAEFS) 7 Day (GEFS)
SREF Ensemble NAEFS Ensemble  GEFS Ensemble 

Note: Use the official hydrograph at the top of this web page for river levels within the next 48 hours.

See the Product Description Document link for more details on the interpretation of the 3,7 day graphics. 

Click individual graphics to enlarge.

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
State College Weather Forecast Office
328 Innovation Boulevard, Suite 330
State College, PA 16803
(814) 231-2408
Ask Questions/Webmaster
Page last modified: 21-Dec-2016 5:21 PM
Disclaimer
Credits
Glossary
Privacy Policy
About Us
Career Opportunities