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Mapping
Swatara Creek near Hershey Stage (ft)Flow (kcfs)Observed: 2.05 ft at 7:00PM Mar 17, 2023Observed: 2.05 ft at 7:15PM Mar 17, 2023Observed: 2.05 ft at 7:30PM Mar 17, 2023Observed: 2.05 ft at 7:45PM Mar 17, 2023Observed: 2.05 ft at 8:00PM Mar 17, 2023Observed: 2.05 ft at 8:15PM Mar 17, 2023Observed: 2.05 ft at 8:30PM Mar 17, 2023Observed: 2.05 ft at 8:45PM Mar 17, 2023Observed: 2.05 ft at 9:00PM Mar 17, 2023Observed: 2.05 ft at 9:15PM Mar 17, 2023Observed: 2.05 ft at 9:30PM Mar 17, 2023Observed: 2.05 ft at 9:45PM Mar 17, 2023Observed: 2.05 ft at 10:00PM Mar 17, 2023Observed: 2.05 ft at 10:15PM Mar 17, 2023Observed: 2.06 ft at 10:30PM Mar 17, 2023Observed: 2.05 ft at 10:45PM Mar 17, 2023Observed: 2.05 ft at 11:00PM Mar 17, 2023Observed: 2.05 ft at 11:15PM Mar 17, 2023Observed: 2.05 ft at 11:30PM Mar 17, 2023Observed: 2.05 ft at 11:45PM Mar 17, 2023Observed: 2.05 ft at 12:00AM Mar 18, 2023Observed: 2.05 ft at 12:15AM Mar 18, 2023Observed: 2.05 ft at 12:30AM Mar 18, 2023Observed: 2.06 ft at 12:45AM Mar 18, 2023Observed: 2.05 ft at 1:00AM Mar 18, 2023Observed: 2.06 ft at 1:15AM Mar 18, 2023Observed: 2.06 ft at 1:30AM Mar 18, 2023Observed: 2.06 ft at 1:45AM Mar 18, 2023Observed: 2.06 ft at 2:00AM Mar 18, 2023Observed: 2.06 ft at 2:15AM Mar 18, 2023Observed: 2.06 ft at 2:30AM Mar 18, 2023Observed: 2.06 ft at 2:45AM Mar 18, 2023Observed: 2.06 ft at 3:00AM Mar 18, 2023Observed: 2.06 ft at 3:15AM Mar 18, 2023Observed: 2.06 ft at 3:30AM Mar 18, 2023Observed: 2.06 ft at 3:45AM Mar 18, 2023Observed: 2.06 ft at 4:00AM Mar 18, 2023Observed: 2.06 ft at 4:02AM Mar 18, 2023Observed: 2.06 ft at 4:15AM Mar 18, 2023Observed: 2.06 ft at 4:30AM Mar 18, 2023Observed: 2.06 ft at 4:45AM Mar 18, 2023Highest Observation: 2.07 ft at 5:00AM Mar 18, 2023Observed: 2.06 ft at 5:15AM Mar 18, 2023Observed: 2.06 ft at 5:30AM Mar 18, 2023Observed: 2.06 ft at 5:45AM Mar 18, 2023Observed: 2.06 ft at 6:00AM Mar 18, 2023Highest Observation: 2.07 ft at 6:15AM Mar 18, 2023Observed: 2.06 ft at 6:30AM Mar 18, 2023Highest Observation: 2.07 ft at 6:45AM Mar 18, 2023Highest Observation: 2.07 ft at 7:00AM Mar 18, 2023Observed: 2.06 ft at 7:15AM Mar 18, 2023Observed: 2.06 ft at 7:30AM Mar 18, 2023Highest Observation: 2.07 ft at 7:45AM Mar 18, 2023Highest Observation: 2.07 ft at 8:00AM Mar 18, 2023Highest Observation: 2.07 ft at 8:15AM Mar 18, 2023Highest Observation: 2.07 ft at 8:30AM Mar 18, 2023Highest Observation: 2.07 ft at 8:45AM Mar 18, 2023Highest Observation: 2.07 ft at 9:00AM Mar 18, 2023Observed: 2.06 ft at 9:15AM Mar 18, 2023Highest Observation: 2.07 ft at 9:30AM Mar 18, 2023Highest Observation: 2.07 ft at 9:45AM Mar 18, 2023Highest Observation: 2.07 ft at 10:00AM Mar 18, 2023Highest Observation: 2.07 ft at 10:15AM Mar 18, 2023Highest Observation: 2.07 ft at 10:30AM Mar 18, 2023Observed: 2.06 ft at 10:45AM Mar 18, 2023Observed: 2.06 ft at 11:00AM Mar 18, 2023Observed: 2.06 ft at 11:15AM Mar 18, 2023Highest Observation: 2.07 ft at 11:30AM Mar 18, 2023Highest Observation: 2.07 ft at 11:45AM Mar 18, 2023Observed: 2.06 ft at 12:00PM Mar 18, 2023Observed: 2.06 ft at 12:15PM Mar 18, 2023Observed: 2.06 ft at 12:30PM Mar 18, 2023Observed: 2.06 ft at 12:45PM Mar 18, 2023Observed: 2.06 ft at 1:00PM Mar 18, 2023Observed: 2.05 ft at 1:15PM Mar 18, 2023Observed: 2.06 ft at 1:30PM Mar 18, 2023Observed: 2.06 ft at 1:45PM Mar 18, 2023Observed: 2.06 ft at 2:00PM Mar 18, 2023Observed: 2.06 ft at 2:15PM Mar 18, 2023Observed: 2.05 ft at 2:30PM Mar 18, 2023Highest Observation: 2.07 ft at 2:45PM Mar 18, 2023Observed: 2.05 ft at 3:00PM Mar 18, 2023Observed: 2.06 ft at 3:15PM Mar 18, 2023Observed: 2.05 ft at 3:30PM Mar 18, 2023Observed: 2.06 ft at 3:45PM Mar 18, 2023Observed: 2.06 ft at 4:00PM Mar 18, 2023Observed: 2.05 ft at 4:15PM Mar 18, 2023Observed: 2.05 ft at 4:30PM Mar 18, 2023Observed: 2.06 ft at 4:45PM Mar 18, 2023Observed: 2.06 ft at 5:00PM Mar 18, 2023Observed: 2.06 ft at 5:15PM Mar 18, 2023Observed: 2.06 ft at 5:30PM Mar 18, 2023Observed: 2.05 ft at 5:45PM Mar 18, 2023Observed: 2.06 ft at 6:00PM Mar 18, 2023Observed: 2.06 ft at 6:15PM Mar 18, 2023Observed: 2.05 ft at 6:30PM Mar 18, 2023Observed: 2.06 ft at 6:45PM Mar 18, 2023Observed: 2.05 ft at 7:00PM Mar 18, 2023Observed: 2.05 ft at 7:15PM Mar 18, 2023Observed: 2.05 ft at 7:30PM Mar 18, 2023Observed: 2.05 ft at 7:45PM Mar 18, 2023Observed: 2.05 ft at 8:00PM Mar 18, 2023Observed: 2.05 ft at 8:15PM Mar 18, 2023Observed: 2.05 ft at 8:30PM Mar 18, 2023Observed: 2.05 ft at 8:45PM Mar 18, 2023Observed: 2.05 ft at 9:00PM Mar 18, 2023Observed: 2.04 ft at 9:15PM Mar 18, 2023Observed: 2.05 ft at 9:30PM Mar 18, 2023Observed: 2.04 ft at 9:45PM Mar 18, 2023Observed: 2.04 ft at 10:00PM Mar 18, 2023Observed: 2.04 ft at 10:15PM Mar 18, 2023Observed: 2.04 ft at 10:30PM Mar 18, 2023Observed: 2.05 ft at 10:45PM Mar 18, 2023Observed: 2.05 ft at 11:00PM Mar 18, 2023Observed: 2.05 ft at 11:15PM Mar 18, 2023Observed: 2.04 ft at 11:30PM Mar 18, 2023Observed: 2.04 ft at 11:45PM Mar 18, 2023Observed: 2.04 ft at 12:00AM Mar 19, 2023Observed: 2.04 ft at 12:15AM Mar 19, 2023Observed: 2.04 ft at 12:30AM Mar 19, 2023Observed: 2.04 ft at 12:45AM Mar 19, 2023Observed: 2.04 ft at 1:00AM Mar 19, 2023Observed: 2.04 ft at 1:15AM Mar 19, 2023Observed: 2.04 ft at 1:30AM Mar 19, 2023Observed: 2.05 ft at 1:45AM Mar 19, 2023Observed: 2.04 ft at 2:00AM Mar 19, 2023Observed: 2.04 ft at 2:15AM Mar 19, 2023Observed: 2.04 ft at 2:30AM Mar 19, 2023Observed: 2.04 ft at 2:45AM Mar 19, 2023Observed: 2.04 ft at 3:00AM Mar 19, 2023Observed: 2.04 ft at 3:15AM Mar 19, 2023Observed: 2.03 ft at 3:30AM Mar 19, 2023Observed: 2.03 ft at 3:45AM Mar 19, 2023Observed: 2.03 ft at 4:00AM Mar 19, 2023Observed: 2.03 ft at 4:01AM Mar 19, 2023Observed: 2.04 ft at 4:15AM Mar 19, 2023Observed: 2.04 ft at 4:30AM Mar 19, 2023Observed: 2.03 ft at 4:45AM Mar 19, 2023Observed: 2.03 ft at 5:00AM Mar 19, 2023Observed: 2.03 ft at 5:15AM Mar 19, 2023Observed: 2.03 ft at 5:30AM Mar 19, 2023Observed: 2.03 ft at 5:45AM Mar 19, 2023Observed: 2.02 ft at 6:00AM Mar 19, 2023Observed: 2.03 ft at 6:15AM Mar 19, 2023Observed: 2.03 ft at 6:30AM Mar 19, 2023Observed: 2.03 ft at 6:45AM Mar 19, 2023Observed: 2.02 ft at 7:00AM Mar 19, 2023Observed: 2.02 ft at 7:15AM Mar 19, 2023Observed: 2.03 ft at 7:30AM Mar 19, 2023Observed: 2.02 ft at 7:45AM Mar 19, 2023Observed: 2.02 ft at 8:00AM Mar 19, 2023Observed: 2.02 ft at 8:15AM Mar 19, 2023Observed: 2.03 ft at 8:30AM Mar 19, 2023Observed: 2.03 ft at 8:45AM Mar 19, 2023Observed: 2.03 ft at 9:00AM Mar 19, 2023Observed: 2.03 ft at 9:15AM Mar 19, 2023Observed: 2.02 ft at 9:30AM Mar 19, 2023Observed: 2.02 ft at 9:45AM Mar 19, 2023Observed: 2.02 ft at 10:00AM Mar 19, 2023Observed: 2.01 ft at 10:15AM Mar 19, 2023Observed: 2.02 ft at 10:30AM Mar 19, 2023Observed: 2.02 ft at 10:45AM Mar 19, 2023Observed: 2.02 ft at 11:00AM Mar 19, 2023Observed: 2.01 ft at 11:15AM Mar 19, 2023Observed: 2.01 ft at 11:30AM Mar 19, 2023Observed: 2.02 ft at 11:45AM Mar 19, 2023Observed: 2.02 ft at 12:00PM Mar 19, 2023Observed: 2.02 ft at 12:15PM Mar 19, 2023Observed: 2.01 ft at 12:30PM Mar 19, 2023Observed: 2.01 ft at 12:45PM Mar 19, 2023Observed: 2.01 ft at 1:00PM Mar 19, 2023Observed: 2.01 ft at 1:15PM Mar 19, 2023Observed: 2.01 ft at 1:30PM Mar 19, 2023Observed: 2.01 ft at 1:45PM Mar 19, 2023Observed: 2.02 ft at 2:00PM Mar 19, 2023Observed: 2.01 ft at 2:15PM Mar 19, 2023Observed: 2.01 ft at 2:30PM Mar 19, 2023Observed: 2.01 ft at 2:45PM Mar 19, 2023Observed: 2.01 ft at 3:00PM Mar 19, 2023Observed: 2 ft at 3:15PM Mar 19, 2023Observed: 2.01 ft at 3:30PM Mar 19, 2023Observed: 2 ft at 3:45PM Mar 19, 2023Observed: 2 ft at 4:00PM Mar 19, 2023Observed: 2 ft at 4:15PM Mar 19, 2023Observed: 1.99 ft at 4:30PM Mar 19, 2023Observed: 2.01 ft at 4:45PM Mar 19, 2023Observed: 2 ft at 5:00PM Mar 19, 2023Observed: 2 ft at 5:15PM Mar 19, 2023Observed: 2 ft at 5:30PM Mar 19, 2023Observed: 2 ft at 5:45PM Mar 19, 2023Observed: 2 ft at 6:00PM Mar 19, 2023Observed: 2 ft at 6:15PM Mar 19, 2023Observed: 2 ft at 6:30PM Mar 19, 2023Observed: 2 ft at 6:45PM Mar 19, 2023Observed: 2 ft at 7:00PM Mar 19, 2023Observed: 1.99 ft at 7:15PM Mar 19, 2023Observed: 1.99 ft at 7:30PM Mar 19, 2023Observed: 1.99 ft at 7:45PM Mar 19, 2023Observed: 1.99 ft at 8:00PM Mar 19, 2023Observed: 1.99 ft at 8:15PM Mar 19, 2023Observed: 1.99 ft at 8:30PM Mar 19, 2023Observed: 1.99 ft at 8:45PM Mar 19, 2023Observed: 1.99 ft at 9:00PM Mar 19, 2023Observed: 1.99 ft at 9:15PM Mar 19, 2023Observed: 1.99 ft at 9:30PM Mar 19, 2023Observed: 1.99 ft at 9:45PM Mar 19, 2023Observed: 1.99 ft at 10:00PM Mar 19, 2023Observed: 1.99 ft at 10:15PM Mar 19, 2023Observed: 1.99 ft at 10:30PM Mar 19, 2023Observed: 1.99 ft at 10:45PM Mar 19, 2023Observed: 1.99 ft at 11:00PM Mar 19, 2023Observed: 1.99 ft at 11:15PM Mar 19, 2023Observed: 1.99 ft at 11:30PM Mar 19, 2023Observed: 1.99 ft at 11:45PM Mar 19, 2023Observed: 1.99 ft at 12:00AM Mar 20, 2023Observed: 1.98 ft at 12:15AM Mar 20, 2023Observed: 1.98 ft at 12:30AM Mar 20, 2023Observed: 1.99 ft at 12:45AM Mar 20, 2023Observed: 1.98 ft at 1:00AM Mar 20, 2023Observed: 1.98 ft at 1:15AM Mar 20, 2023Observed: 1.98 ft at 1:30AM Mar 20, 2023Observed: 1.98 ft at 1:45AM Mar 20, 2023Observed: 1.98 ft at 2:00AM Mar 20, 2023Observed: 1.98 ft at 2:15AM Mar 20, 2023Observed: 1.98 ft at 2:30AM Mar 20, 2023Observed: 1.98 ft at 2:45AM Mar 20, 2023Observed: 1.98 ft at 3:00AM Mar 20, 2023Observed: 1.98 ft at 3:15AM Mar 20, 2023Observed: 1.98 ft at 3:30AM Mar 20, 2023Observed: 1.98 ft at 3:45AM Mar 20, 2023Observed: 1.98 ft at 4:00AM Mar 20, 2023Observed: 1.98 ft at 4:01AM Mar 20, 2023Observed: 1.98 ft at 4:15AM Mar 20, 2023Observed: 1.98 ft at 4:30AM Mar 20, 2023Observed: 1.98 ft at 4:45AM Mar 20, 2023Observed: 1.98 ft at 5:00AM Mar 20, 2023Observed: 1.98 ft at 5:15AM Mar 20, 2023Observed: 1.98 ft at 5:30AM Mar 20, 2023Observed: 1.98 ft at 5:45AM Mar 20, 2023Observed: 1.98 ft at 6:00AM Mar 20, 2023Observed: 1.98 ft at 6:15AM Mar 20, 2023Observed: 1.97 ft at 6:30AM Mar 20, 2023Observed: 1.97 ft at 6:45AM Mar 20, 2023Observed: 1.97 ft at 7:00AM Mar 20, 2023Observed: 1.97 ft at 7:15AM Mar 20, 2023Observed: 1.97 ft at 7:30AM Mar 20, 2023Observed: 1.97 ft at 7:45AM Mar 20, 2023Observed: 1.97 ft at 8:00AM Mar 20, 2023Observed: 1.97 ft at 8:15AM Mar 20, 2023Observed: 1.97 ft at 8:30AM Mar 20, 2023Observed: 1.97 ft at 8:45AM Mar 20, 2023Observed: 1.97 ft at 9:00AM Mar 20, 2023Observed: 1.97 ft at 9:15AM Mar 20, 2023Observed: 1.97 ft at 9:30AM Mar 20, 2023Observed: 1.97 ft at 9:45AM Mar 20, 2023Observed: 1.97 ft at 10:00AM Mar 20, 2023Observed: 1.97 ft at 10:15AM Mar 20, 2023Observed: 1.97 ft at 10:30AM Mar 20, 2023Observed: 1.97 ft at 10:45AM Mar 20, 2023Observed: 1.97 ft at 11:00AM Mar 20, 2023Observed: 1.97 ft at 11:15AM Mar 20, 2023Observed: 1.97 ft at 11:30AM Mar 20, 2023Observed: 1.97 ft at 11:45AM Mar 20, 2023Observed: 1.97 ft at 12:00PM Mar 20, 2023Observed: 1.97 ft at 12:15PM Mar 20, 2023Observed: 1.97 ft at 12:30PM Mar 20, 2023Observed: 1.96 ft at 12:45PM Mar 20, 2023Observed: 1.96 ft at 1:00PM Mar 20, 2023Observed: 1.97 ft at 1:15PM Mar 20, 2023Observed: 1.97 ft at 1:30PM Mar 20, 2023Observed: 1.96 ft at 1:45PM Mar 20, 2023Observed: 1.97 ft at 2:00PM Mar 20, 2023Observed: 1.96 ft at 2:15PM Mar 20, 2023Observed: 1.96 ft at 2:30PM Mar 20, 2023Observed: 1.96 ft at 2:45PM Mar 20, 2023Observed: 1.97 ft at 3:00PM Mar 20, 2023Observed: 1.96 ft at 3:15PM Mar 20, 2023Observed: 1.96 ft at 3:30PM Mar 20, 2023Observed: 1.97 ft at 3:45PM Mar 20, 2023Observed: 1.96 ft at 4:00PM Mar 20, 2023Observed: 1.96 ft at 4:15PM Mar 20, 2023Observed: 1.96 ft at 4:30PM Mar 20, 2023Observed: 1.96 ft at 4:45PM Mar 20, 2023Observed: 1.97 ft at 5:00PM Mar 20, 2023Observed: 1.97 ft at 5:15PM Mar 20, 2023Observed: 1.96 ft at 5:30PM Mar 20, 2023Observed: 1.96 ft at 5:45PM Mar 20, 2023Highest Forecast: 1.9 ft 8:00PM Mar 20, 2023Highest Forecast: 1.9 ft 2:00AM Mar 21, 2023Highest Forecast: 1.9 ft 8:00AM Mar 21, 2023Highest Forecast: 1.9 ft 2:00PM Mar 21, 2023Highest Forecast: 1.9 ft 8:00PM Mar 21, 2023Highest Forecast: 1.9 ft 2:00AM Mar 22, 2023Highest Forecast: 1.9 ft 8:00AM Mar 22, 2023Highest Forecast: 1.9 ft 2:00PM Mar 22, 2023Highest Forecast: 1.9 ft 8:00PM Mar 22, 2023Highest Forecast: 1.9 ft 2:00AM Mar 23, 2023Highest Forecast: 1.9 ft 8:00AM Mar 23, 2023USGS--Water Resources of the United StatesHERP1(plotting HGIRG) Graph Created (6:47PM Mar 20, 2023)ObservedForecast (issued 10:30AM Mar 20)Latest observed value: 1.96 ft at 5:45 PM EDT 20-Mar-2023. Flood Stage is 7 ft
Printable Image
About this graph
Tabular Data (UTC)
Tabular Data (EDT)
XML Data
RSS Files
Datum: NGVD29
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) 17.08 ft on 07/26/2018
(3) 16.12 ft on 06/29/2006
(4) 15.36 ft on 09/27/1975
(5) 14.43 ft on 01/25/1979
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 14.01 ft on 09/03/2021 (P)
(2) 8.94 ft on 12/26/2020 (P)
(3) 7.24 ft on 05/01/2020 (P)
(4) 8.52 ft on 11/02/2019 (P)
(5) 7.14 ft on 04/16/2019
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
27 FEMA 0.2% Annual Chance Flood Level (500-year flood).
26.8 Flood of record from the flooding in September, 2011. Maximum recordable gage height (stage sensor operational limit). Water levels above this stage will not be reported in real time.
20 FEMA 1% Annual Chance Flood Level (100-year flood).
18 Flood waters begin to reach the Route 39 Bridge (Hershey Road) northwest of Hershey. FEMA 2% Annual Chance Flood Level (50-year flood).
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. FEMA 10% Annual Chance Flood Level (10-year flood).
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 29 325.94 332.94 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
10 Day (HEFS) 7 Day (NAEFS) 7 Day (GEFS)
HEFS Ensemble NAEFS Ensemble GEFS Ensemble

Note: Use the official hydrograph at the top of this web page for river levels within the next 72 hours.

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
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