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Hydrograph River at a Glance Download Inundation
Mapping
Swatara Creek at Middletown Stage (ft)Highest Observation: 3.77 ft at 6:45AM Apr 29, 2024Highest Observation: 3.77 ft at 7:00AM Apr 29, 2024Highest Observation: 3.77 ft at 7:15AM Apr 29, 2024Observed: 3.76 ft at 7:30AM Apr 29, 2024Observed: 3.76 ft at 7:45AM Apr 29, 2024Highest Observation: 3.77 ft at 8:00AM Apr 29, 2024Highest Observation: 3.77 ft at 8:15AM Apr 29, 2024Observed: 3.76 ft at 8:30AM Apr 29, 2024Observed: 3.76 ft at 8:45AM Apr 29, 2024Observed: 3.76 ft at 9:00AM Apr 29, 2024Observed: 3.76 ft at 9:15AM Apr 29, 2024Observed: 3.76 ft at 9:30AM Apr 29, 2024Observed: 3.76 ft at 9:45AM Apr 29, 2024Observed: 3.76 ft at 10:00AM Apr 29, 2024Observed: 3.75 ft at 10:15AM Apr 29, 2024Observed: 3.76 ft at 10:30AM Apr 29, 2024Observed: 3.75 ft at 10:45AM Apr 29, 2024Observed: 3.75 ft at 11:00AM Apr 29, 2024Observed: 3.75 ft at 11:15AM Apr 29, 2024Observed: 3.75 ft at 11:30AM Apr 29, 2024Observed: 3.75 ft at 11:45AM Apr 29, 2024Observed: 3.75 ft at 12:00PM Apr 29, 2024Observed: 3.75 ft at 12:15PM Apr 29, 2024Observed: 3.75 ft at 12:30PM Apr 29, 2024Observed: 3.75 ft at 12:45PM Apr 29, 2024Observed: 3.74 ft at 1:00PM Apr 29, 2024Observed: 3.74 ft at 1:15PM Apr 29, 2024Observed: 3.74 ft at 1:30PM Apr 29, 2024Observed: 3.74 ft at 1:41PM Apr 29, 2024Observed: 3.74 ft at 1:45PM Apr 29, 2024Observed: 3.74 ft at 2:00PM Apr 29, 2024Observed: 3.74 ft at 2:15PM Apr 29, 2024Observed: 3.74 ft at 2:30PM Apr 29, 2024Observed: 3.73 ft at 2:45PM Apr 29, 2024Observed: 3.73 ft at 3:00PM Apr 29, 2024Observed: 3.73 ft at 3:15PM Apr 29, 2024Observed: 3.73 ft at 3:30PM Apr 29, 2024Observed: 3.73 ft at 3:45PM Apr 29, 2024Observed: 3.73 ft at 4:00PM Apr 29, 2024Observed: 3.73 ft at 4:15PM Apr 29, 2024Observed: 3.73 ft at 4:30PM Apr 29, 2024Observed: 3.73 ft at 4:45PM Apr 29, 2024Observed: 3.72 ft at 5:00PM Apr 29, 2024Observed: 3.72 ft at 5:15PM Apr 29, 2024Observed: 3.72 ft at 5:30PM Apr 29, 2024Observed: 3.72 ft at 5:45PM Apr 29, 2024Observed: 3.72 ft at 6:00PM Apr 29, 2024Observed: 3.72 ft at 6:15PM Apr 29, 2024Observed: 3.72 ft at 6:30PM Apr 29, 2024Observed: 3.72 ft at 6:45PM Apr 29, 2024Observed: 3.71 ft at 7:00PM Apr 29, 2024Observed: 3.71 ft at 7:15PM Apr 29, 2024Observed: 3.71 ft at 7:30PM Apr 29, 2024Observed: 3.71 ft at 7:45PM Apr 29, 2024Observed: 3.71 ft at 8:00PM Apr 29, 2024Observed: 3.7 ft at 8:15PM Apr 29, 2024Observed: 3.7 ft at 8:30PM Apr 29, 2024Observed: 3.7 ft at 8:45PM Apr 29, 2024Observed: 3.7 ft at 9:00PM Apr 29, 2024Observed: 3.7 ft at 9:15PM Apr 29, 2024Observed: 3.69 ft at 9:30PM Apr 29, 2024Observed: 3.69 ft at 9:45PM Apr 29, 2024Observed: 3.69 ft at 10:00PM Apr 29, 2024Observed: 3.69 ft at 10:15PM Apr 29, 2024Observed: 3.69 ft at 10:30PM Apr 29, 2024Observed: 3.69 ft at 10:45PM Apr 29, 2024Observed: 3.68 ft at 11:00PM Apr 29, 2024Observed: 3.68 ft at 11:15PM Apr 29, 2024Observed: 3.68 ft at 11:30PM Apr 29, 2024Observed: 3.68 ft at 11:45PM Apr 29, 2024Observed: 3.68 ft at 12:00AM Apr 30, 2024Observed: 3.68 ft at 12:15AM Apr 30, 2024Observed: 3.68 ft at 12:30AM Apr 30, 2024Observed: 3.68 ft at 12:45AM Apr 30, 2024Observed: 3.68 ft at 1:00AM Apr 30, 2024Observed: 3.67 ft at 1:15AM Apr 30, 2024Observed: 3.67 ft at 1:30AM Apr 30, 2024Observed: 3.67 ft at 1:41AM Apr 30, 2024Observed: 3.67 ft at 1:45AM Apr 30, 2024Observed: 3.67 ft at 2:00AM Apr 30, 2024Observed: 3.67 ft at 2:15AM Apr 30, 2024Observed: 3.67 ft at 2:30AM Apr 30, 2024Observed: 3.67 ft at 2:45AM Apr 30, 2024Observed: 3.67 ft at 3:00AM Apr 30, 2024Observed: 3.67 ft at 3:15AM Apr 30, 2024Observed: 3.67 ft at 3:30AM Apr 30, 2024Observed: 3.66 ft at 3:45AM Apr 30, 2024Observed: 3.66 ft at 4:00AM Apr 30, 2024Observed: 3.66 ft at 4:15AM Apr 30, 2024Observed: 3.66 ft at 4:30AM Apr 30, 2024Observed: 3.66 ft at 4:45AM Apr 30, 2024Observed: 3.66 ft at 5:00AM Apr 30, 2024Observed: 3.66 ft at 5:15AM Apr 30, 2024Observed: 3.66 ft at 5:30AM Apr 30, 2024Observed: 3.66 ft at 5:45AM Apr 30, 2024Observed: 3.66 ft at 6:00AM Apr 30, 2024Observed: 3.65 ft at 6:15AM Apr 30, 2024Observed: 3.65 ft at 6:30AM Apr 30, 2024Observed: 3.65 ft at 6:45AM Apr 30, 2024Observed: 3.65 ft at 7:00AM Apr 30, 2024Observed: 3.65 ft at 7:15AM Apr 30, 2024Observed: 3.65 ft at 7:30AM Apr 30, 2024Observed: 3.64 ft at 7:45AM Apr 30, 2024Observed: 3.64 ft at 8:00AM Apr 30, 2024Observed: 3.64 ft at 8:15AM Apr 30, 2024Observed: 3.64 ft at 8:30AM Apr 30, 2024Observed: 3.64 ft at 8:45AM Apr 30, 2024Observed: 3.63 ft at 9:00AM Apr 30, 2024Observed: 3.63 ft at 9:15AM Apr 30, 2024Observed: 3.63 ft at 9:30AM Apr 30, 2024Observed: 3.63 ft at 9:45AM Apr 30, 2024Observed: 3.64 ft at 10:00AM Apr 30, 2024Observed: 3.63 ft at 10:15AM Apr 30, 2024Observed: 3.63 ft at 10:30AM Apr 30, 2024Observed: 3.63 ft at 10:45AM Apr 30, 2024Observed: 3.62 ft at 11:00AM Apr 30, 2024Observed: 3.63 ft at 11:15AM Apr 30, 2024Observed: 3.62 ft at 11:30AM Apr 30, 2024Observed: 3.62 ft at 11:45AM Apr 30, 2024Observed: 3.62 ft at 12:00PM Apr 30, 2024Observed: 3.62 ft at 12:15PM Apr 30, 2024Observed: 3.61 ft at 12:30PM Apr 30, 2024Observed: 3.61 ft at 12:45PM Apr 30, 2024Observed: 3.61 ft at 1:00PM Apr 30, 2024Observed: 3.61 ft at 1:15PM Apr 30, 2024Observed: 3.6 ft at 1:30PM Apr 30, 2024Observed: 3.61 ft at 1:40PM Apr 30, 2024Observed: 3.61 ft at 1:45PM Apr 30, 2024Observed: 3.6 ft at 2:00PM Apr 30, 2024Observed: 3.6 ft at 2:15PM Apr 30, 2024Observed: 3.6 ft at 2:30PM Apr 30, 2024Observed: 3.6 ft at 2:45PM Apr 30, 2024Observed: 3.6 ft at 3:00PM Apr 30, 2024Observed: 3.6 ft at 3:15PM Apr 30, 2024Observed: 3.59 ft at 3:30PM Apr 30, 2024Observed: 3.59 ft at 3:45PM Apr 30, 2024Observed: 3.59 ft at 4:00PM Apr 30, 2024Observed: 3.6 ft at 4:15PM Apr 30, 2024Observed: 3.6 ft at 4:30PM Apr 30, 2024Observed: 3.59 ft at 4:45PM Apr 30, 2024Observed: 3.59 ft at 5:00PM Apr 30, 2024Observed: 3.59 ft at 5:15PM Apr 30, 2024Observed: 3.59 ft at 5:30PM Apr 30, 2024Observed: 3.58 ft at 5:45PM Apr 30, 2024Observed: 3.58 ft at 6:00PM Apr 30, 2024Observed: 3.58 ft at 6:15PM Apr 30, 2024Observed: 3.57 ft at 6:30PM Apr 30, 2024Observed: 3.56 ft at 6:45PM Apr 30, 2024Observed: 3.57 ft at 7:00PM Apr 30, 2024Observed: 3.56 ft at 7:15PM Apr 30, 2024Observed: 3.56 ft at 7:30PM Apr 30, 2024Observed: 3.55 ft at 7:45PM Apr 30, 2024Observed: 3.55 ft at 8:00PM Apr 30, 2024Observed: 3.55 ft at 8:15PM Apr 30, 2024Observed: 3.55 ft at 8:30PM Apr 30, 2024Observed: 3.54 ft at 8:45PM Apr 30, 2024Observed: 3.54 ft at 9:00PM Apr 30, 2024Observed: 3.54 ft at 9:15PM Apr 30, 2024Observed: 3.55 ft at 9:30PM Apr 30, 2024Observed: 3.54 ft at 9:45PM Apr 30, 2024Observed: 3.54 ft at 10:00PM Apr 30, 2024Observed: 3.54 ft at 10:15PM Apr 30, 2024Observed: 3.54 ft at 10:30PM Apr 30, 2024Observed: 3.54 ft at 10:45PM Apr 30, 2024Observed: 3.53 ft at 11:00PM Apr 30, 2024Observed: 3.53 ft at 11:15PM Apr 30, 2024Observed: 3.53 ft at 11:30PM Apr 30, 2024Observed: 3.53 ft at 11:45PM Apr 30, 2024Observed: 3.53 ft at 12:00AM May 01, 2024Observed: 3.52 ft at 12:15AM May 01, 2024Observed: 3.52 ft at 12:30AM May 01, 2024Observed: 3.52 ft at 12:45AM May 01, 2024Observed: 3.51 ft at 1:00AM May 01, 2024Observed: 3.51 ft at 1:15AM May 01, 2024Observed: 3.51 ft at 1:30AM May 01, 2024Observed: 3.51 ft at 1:45AM May 01, 2024Observed: 3.51 ft at 2:00AM May 01, 2024Observed: 3.5 ft at 2:15AM May 01, 2024Observed: 3.5 ft at 2:30AM May 01, 2024Observed: 3.5 ft at 2:45AM May 01, 2024Observed: 3.5 ft at 3:00AM May 01, 2024Observed: 3.5 ft at 3:15AM May 01, 2024Observed: 3.5 ft at 3:30AM May 01, 2024Observed: 3.5 ft at 3:45AM May 01, 2024Observed: 3.5 ft at 4:00AM May 01, 2024Observed: 3.49 ft at 4:15AM May 01, 2024Observed: 3.49 ft at 4:30AM May 01, 2024Observed: 3.49 ft at 4:45AM May 01, 2024Observed: 3.49 ft at 5:00AM May 01, 2024Observed: 3.49 ft at 5:15AM May 01, 2024Observed: 3.48 ft at 5:30AM May 01, 2024Observed: 3.48 ft at 5:45AM May 01, 2024Observed: 3.48 ft at 6:00AM May 01, 2024Observed: 3.48 ft at 6:15AM May 01, 2024Observed: 3.47 ft at 6:30AM May 01, 2024Observed: 3.48 ft at 6:45AM May 01, 2024Observed: 3.47 ft at 7:00AM May 01, 2024Observed: 3.47 ft at 7:15AM May 01, 2024Observed: 3.47 ft at 7:30AM May 01, 2024Observed: 3.47 ft at 7:45AM May 01, 2024Observed: 3.47 ft at 8:00AM May 01, 2024Observed: 3.47 ft at 8:15AM May 01, 2024Observed: 3.47 ft at 8:30AM May 01, 2024Observed: 3.46 ft at 8:45AM May 01, 2024Observed: 3.46 ft at 9:00AM May 01, 2024Observed: 3.46 ft at 9:15AM May 01, 2024Observed: 3.46 ft at 9:30AM May 01, 2024Observed: 3.46 ft at 9:45AM May 01, 2024Observed: 3.46 ft at 10:00AM May 01, 2024Observed: 3.46 ft at 10:15AM May 01, 2024Observed: 3.46 ft at 10:30AM May 01, 2024Observed: 3.46 ft at 10:45AM May 01, 2024Observed: 3.45 ft at 11:00AM May 01, 2024Observed: 3.45 ft at 11:15AM May 01, 2024Observed: 3.45 ft at 11:30AM May 01, 2024Observed: 3.45 ft at 11:45AM May 01, 2024Observed: 3.45 ft at 12:00PM May 01, 2024Observed: 3.45 ft at 12:15PM May 01, 2024Observed: 3.45 ft at 12:30PM May 01, 2024Observed: 3.45 ft at 12:45PM May 01, 2024Observed: 3.44 ft at 1:00PM May 01, 2024Observed: 3.44 ft at 1:15PM May 01, 2024Observed: 3.44 ft at 1:30PM May 01, 2024Observed: 3.44 ft at 1:45PM May 01, 2024Observed: 3.44 ft at 1:56PM May 01, 2024Observed: 3.44 ft at 2:00PM May 01, 2024Observed: 3.44 ft at 2:15PM May 01, 2024Observed: 3.44 ft at 2:30PM May 01, 2024Observed: 3.44 ft at 2:45PM May 01, 2024Observed: 3.43 ft at 3:00PM May 01, 2024Observed: 3.43 ft at 3:15PM May 01, 2024Observed: 3.43 ft at 3:30PM May 01, 2024Observed: 3.43 ft at 3:45PM May 01, 2024Observed: 3.43 ft at 4:00PM May 01, 2024Observed: 3.43 ft at 4:15PM May 01, 2024Observed: 3.43 ft at 4:30PM May 01, 2024Observed: 3.42 ft at 4:45PM May 01, 2024Observed: 3.42 ft at 5:00PM May 01, 2024Observed: 3.42 ft at 5:15PM May 01, 2024Observed: 3.42 ft at 5:30PM May 01, 2024Observed: 3.42 ft at 5:45PM May 01, 2024Observed: 3.42 ft at 6:00PM May 01, 2024Observed: 3.41 ft at 6:15PM May 01, 2024Observed: 3.41 ft at 6:30PM May 01, 2024Observed: 3.41 ft at 6:45PM May 01, 2024Observed: 3.41 ft at 7:00PM May 01, 2024Observed: 3.4 ft at 7:15PM May 01, 2024Observed: 3.4 ft at 7:30PM May 01, 2024Observed: 3.4 ft at 7:45PM May 01, 2024Observed: 3.4 ft at 8:00PM May 01, 2024Observed: 3.4 ft at 8:15PM May 01, 2024Observed: 3.4 ft at 8:30PM May 01, 2024Observed: 3.4 ft at 8:45PM May 01, 2024Observed: 3.39 ft at 9:00PM May 01, 2024Observed: 3.39 ft at 9:15PM May 01, 2024Observed: 3.39 ft at 9:30PM May 01, 2024Observed: 3.39 ft at 9:45PM May 01, 2024Observed: 3.39 ft at 10:00PM May 01, 2024Observed: 3.39 ft at 10:15PM May 01, 2024Observed: 3.38 ft at 10:30PM May 01, 2024Observed: 3.38 ft at 10:45PM May 01, 2024Observed: 3.38 ft at 11:00PM May 01, 2024Observed: 3.38 ft at 11:15PM May 01, 2024Observed: 3.38 ft at 11:30PM May 01, 2024Observed: 3.38 ft at 11:45PM May 01, 2024Observed: 3.38 ft at 12:00AM May 02, 2024Observed: 3.38 ft at 12:15AM May 02, 2024Observed: 3.37 ft at 12:30AM May 02, 2024Observed: 3.37 ft at 12:45AM May 02, 2024Observed: 3.37 ft at 1:00AM May 02, 2024Observed: 3.37 ft at 1:15AM May 02, 2024Observed: 3.37 ft at 1:30AM May 02, 2024Observed: 3.37 ft at 1:45AM May 02, 2024Observed: 3.37 ft at 1:55AM May 02, 2024Observed: 3.37 ft at 2:00AM May 02, 2024Observed: 3.37 ft at 2:15AM May 02, 2024Observed: 3.36 ft at 2:30AM May 02, 2024Observed: 3.36 ft at 2:45AM May 02, 2024Observed: 3.36 ft at 3:00AM May 02, 2024Observed: 3.36 ft at 3:15AM May 02, 2024Observed: 3.36 ft at 3:30AM May 02, 2024Observed: 3.36 ft at 3:45AM May 02, 2024Observed: 3.35 ft at 4:00AM May 02, 2024Observed: 3.35 ft at 4:15AM May 02, 2024Observed: 3.35 ft at 4:30AM May 02, 2024Observed: 3.35 ft at 4:45AM May 02, 2024Observed: 3.34 ft at 5:00AM May 02, 2024Observed: 3.34 ft at 5:15AM May 02, 2024Highest Forecast: 3.3 ft 8:00AM May 02, 2024Forecast: 3.2 ft 2:00PM May 02, 2024Forecast: 3.2 ft 8:00PM May 02, 2024Forecast: 3.2 ft 2:00AM May 03, 2024Highest Forecast: 3.3 ft 8:00AM May 03, 2024Highest Forecast: 3.3 ft 2:00PM May 03, 2024Highest Forecast: 3.3 ft 8:00PM May 03, 2024Highest Forecast: 3.3 ft 2:00AM May 04, 2024Highest Forecast: 3.3 ft 8:00AM May 04, 2024Highest Forecast: 3.3 ft 2:00PM May 04, 2024Highest Forecast: 3.3 ft 8:00PM May 04, 2024USGS--Water Resources of the United StatesMTLP1(plotting HGIRG) Graph Created (6:33AM May 2, 2024)ObservedForecast (issued 9:02PM May 1)Latest observed value: 3.34 ft at 5:15 AM EDT 2-May-2024. Flood Stage is 11 ft
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About this graph
Tabular Data (UTC)
Tabular Data (EDT)
XML Data
RSS Files
Datum: NAVD88
Metadata
NOTE: Stage may be affected by ice during winter months.

NOTE: Forecasts for the Swatara Creek at Middletown are issued routinely year-round.

Return to Area Map
Upstream Gauge - near Hershey Upstream Gauge
Flood Categories (in feet)
Major Flood Stage: 18
Moderate Flood Stage: 15
Flood Stage: 11
Action Stage: 10
Low Stage (in feet): 0

Historic Crests
(1) 23.29 ft on 09/09/2011
(2) 16.36 ft on 03/12/2011
(3) 16.19 ft on 07/26/2018
(4) 13.68 ft on 12/26/2020
(5) 13.46 ft on 09/03/2021
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 11.05 ft on 12/19/2023 (P)
(2) 13.37 ft on 02/05/2022
(3) 13.46 ft on 09/03/2021
(4) 13.68 ft on 12/26/2020
(5) 11.76 ft on 09/12/2018
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
Currently none available.

For more information on your flood risk go to www.floodsmart.gov.
Zoom Level:15
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
23.29 Flood of Record. Level of flooding associated with the remnants of Tropical Storm Lee on September 9 2011.
20 Widespread flooding of structures...including the trailer park at Harborton Place and Caravan Court.
18 Widespread flooding occurs. Numerous homes are affected by high water. Route 230 is affected. Flooding begins in the vicinity of Hoffer Park.
15 Flooding begins in the vicinity of Few Avenue and near the community swimming pool.
12 Both banks overflow upstream of the Vine Street Bridge and several basements are affected.
11 Minor overbank flooding begins near the Vine Street Bridge downstream to the Susquehanna River.
Photos
(1) Upstream from gage site
(2) Downstream from Gage
(3) River gage
About This Location Collapse

Latitude: 40.192500° N, Longitude: 76.728333° W, Horizontal Datum: NAD83/WGS84

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 278.56 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 Not Available Not Available  

Current/Historical Observations:
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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
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328 Innovation Boulevard, Suite 330
State College, PA 16803
(814) 954-6400
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