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Hydrograph River at a Glance Download
Little Lehigh Creek at Allentown Stage (ft)Flow (kcfs)Observed: 2.5 ft at 2:30AM Nov 21, 2020Observed: 2.5 ft at 2:45AM Nov 21, 2020Observed: 2.5 ft at 3:00AM Nov 21, 2020Observed: 2.5 ft at 3:15AM Nov 21, 2020Observed: 2.5 ft at 3:30AM Nov 21, 2020Observed: 2.5 ft at 3:45AM Nov 21, 2020Observed: 2.5 ft at 4:00AM Nov 21, 2020Observed: 2.5 ft at 4:15AM Nov 21, 2020Observed: 2.5 ft at 4:30AM Nov 21, 2020Observed: 2.5 ft at 4:45AM Nov 21, 2020Observed: 2.5 ft at 5:00AM Nov 21, 2020Observed: 2.5 ft at 5:15AM Nov 21, 2020Observed: 2.5 ft at 5:30AM Nov 21, 2020Observed: 2.5 ft at 5:45AM Nov 21, 2020Observed: 2.5 ft at 6:00AM Nov 21, 2020Observed: 2.5 ft at 6:15AM Nov 21, 2020Observed: 2.5 ft at 6:30AM Nov 21, 2020Observed: 2.5 ft at 6:45AM Nov 21, 2020Observed: 2.5 ft at 7:00AM Nov 21, 2020Observed: 2.5 ft at 7:15AM Nov 21, 2020Observed: 2.5 ft at 7:30AM Nov 21, 2020Observed: 2.5 ft at 7:45AM Nov 21, 2020Observed: 2.5 ft at 8:00AM Nov 21, 2020Observed: 2.5 ft at 8:15AM Nov 21, 2020Observed: 2.5 ft at 8:30AM Nov 21, 2020Observed: 2.5 ft at 8:45AM Nov 21, 2020Observed: 2.5 ft at 9:00AM Nov 21, 2020Observed: 2.5 ft at 9:15AM Nov 21, 2020Observed: 2.5 ft at 9:30AM Nov 21, 2020Observed: 2.5 ft at 9:45AM Nov 21, 2020Observed: 2.5 ft at 10:00AM Nov 21, 2020Observed: 2.5 ft at 10:15AM Nov 21, 2020Observed: 2.5 ft at 10:17AM Nov 21, 2020Observed: 2.5 ft at 10:30AM Nov 21, 2020Observed: 2.5 ft at 10:32AM Nov 21, 2020Observed: 2.5 ft at 10:45AM Nov 21, 2020Observed: 2.5 ft at 10:47AM Nov 21, 2020Observed: 2.5 ft at 11:00AM Nov 21, 2020Observed: 2.5 ft at 11:02AM Nov 21, 2020Observed: 2.5 ft at 11:15AM Nov 21, 2020Observed: 2.5 ft at 11:30AM Nov 21, 2020Observed: 2.5 ft at 11:45AM Nov 21, 2020Observed: 2.5 ft at 12:00PM Nov 21, 2020Observed: 2.5 ft at 12:15PM Nov 21, 2020Observed: 2.5 ft at 12:30PM Nov 21, 2020Observed: 2.5 ft at 12:45PM Nov 21, 2020Observed: 2.5 ft at 1:00PM Nov 21, 2020Observed: 2.5 ft at 1:15PM Nov 21, 2020Observed: 2.5 ft at 1:30PM Nov 21, 2020Observed: 2.5 ft at 1:45PM Nov 21, 2020Observed: 2.5 ft at 2:00PM Nov 21, 2020Observed: 2.5 ft at 2:15PM Nov 21, 2020Observed: 2.5 ft at 2:30PM Nov 21, 2020Observed: 2.5 ft at 2:45PM Nov 21, 2020Observed: 2.5 ft at 3:00PM Nov 21, 2020Observed: 2.5 ft at 3:15PM Nov 21, 2020Observed: 2.5 ft at 3:30PM Nov 21, 2020Observed: 2.5 ft at 3:45PM Nov 21, 2020Observed: 2.5 ft at 4:00PM Nov 21, 2020Observed: 2.5 ft at 4:15PM Nov 21, 2020Observed: 2.5 ft at 4:30PM Nov 21, 2020Observed: 2.5 ft at 4:45PM Nov 21, 2020Observed: 2.5 ft at 5:00PM Nov 21, 2020Observed: 2.5 ft at 5:15PM Nov 21, 2020Observed: 2.5 ft at 5:30PM Nov 21, 2020Observed: 2.5 ft at 5:45PM Nov 21, 2020Observed: 2.5 ft at 6:00PM Nov 21, 2020Observed: 2.5 ft at 6:15PM Nov 21, 2020Observed: 2.5 ft at 6:30PM Nov 21, 2020Observed: 2.5 ft at 6:45PM Nov 21, 2020Observed: 2.5 ft at 7:00PM Nov 21, 2020Observed: 2.5 ft at 7:15PM Nov 21, 2020Observed: 2.5 ft at 7:30PM Nov 21, 2020Observed: 2.5 ft at 7:45PM Nov 21, 2020Observed: 2.5 ft at 8:00PM Nov 21, 2020Observed: 2.5 ft at 8:15PM Nov 21, 2020Observed: 2.5 ft at 8:30PM Nov 21, 2020Observed: 2.5 ft at 8:45PM Nov 21, 2020Observed: 2.5 ft at 9:00PM Nov 21, 2020Observed: 2.5 ft at 9:15PM Nov 21, 2020Observed: 2.5 ft at 9:30PM Nov 21, 2020Observed: 2.5 ft at 9:45PM Nov 21, 2020Observed: 2.5 ft at 10:00PM Nov 21, 2020Observed: 2.5 ft at 10:15PM Nov 21, 2020Observed: 2.5 ft at 10:17PM Nov 21, 2020Observed: 2.5 ft at 10:30PM Nov 21, 2020Observed: 2.5 ft at 10:32PM Nov 21, 2020Observed: 2.5 ft at 10:45PM Nov 21, 2020Observed: 2.5 ft at 10:47PM Nov 21, 2020Observed: 2.52 ft at 11:00PM Nov 21, 2020Observed: 2.52 ft at 11:02PM Nov 21, 2020Observed: 2.55 ft at 11:15PM Nov 21, 2020Observed: 2.56 ft at 11:30PM Nov 21, 2020Observed: 2.57 ft at 11:45PM Nov 21, 2020Observed: 2.57 ft at 12:00AM Nov 22, 2020Observed: 2.58 ft at 12:15AM Nov 22, 2020Observed: 2.57 ft at 12:30AM Nov 22, 2020Observed: 2.57 ft at 12:45AM Nov 22, 2020Observed: 2.57 ft at 1:00AM Nov 22, 2020Observed: 2.58 ft at 1:15AM Nov 22, 2020Observed: 2.57 ft at 1:30AM Nov 22, 2020Observed: 2.57 ft at 1:45AM Nov 22, 2020Observed: 2.57 ft at 2:00AM Nov 22, 2020Observed: 2.57 ft at 2:15AM Nov 22, 2020Observed: 2.57 ft at 2:30AM Nov 22, 2020Observed: 2.57 ft at 2:45AM Nov 22, 2020Observed: 2.57 ft at 3:00AM Nov 22, 2020Observed: 2.57 ft at 3:15AM Nov 22, 2020Observed: 2.57 ft at 3:30AM Nov 22, 2020Observed: 2.57 ft at 3:45AM Nov 22, 2020Observed: 2.57 ft at 4:00AM Nov 22, 2020Observed: 2.57 ft at 4:15AM Nov 22, 2020Observed: 2.57 ft at 4:30AM Nov 22, 2020Observed: 2.57 ft at 4:45AM Nov 22, 2020Observed: 2.57 ft at 5:00AM Nov 22, 2020Observed: 2.57 ft at 5:15AM Nov 22, 2020Observed: 2.57 ft at 5:30AM Nov 22, 2020Observed: 2.57 ft at 5:45AM Nov 22, 2020Observed: 2.57 ft at 6:00AM Nov 22, 2020Observed: 2.57 ft at 6:15AM Nov 22, 2020Observed: 2.57 ft at 6:30AM Nov 22, 2020Observed: 2.57 ft at 6:45AM Nov 22, 2020Observed: 2.57 ft at 7:00AM Nov 22, 2020Observed: 2.57 ft at 7:15AM Nov 22, 2020Observed: 2.57 ft at 7:30AM Nov 22, 2020Observed: 2.57 ft at 7:45AM Nov 22, 2020Observed: 2.57 ft at 8:00AM Nov 22, 2020Observed: 2.57 ft at 8:15AM Nov 22, 2020Observed: 2.57 ft at 8:30AM Nov 22, 2020Observed: 2.57 ft at 8:45AM Nov 22, 2020Observed: 2.57 ft at 9:00AM Nov 22, 2020Observed: 2.57 ft at 9:15AM Nov 22, 2020Observed: 2.57 ft at 9:30AM Nov 22, 2020Observed: 2.57 ft at 9:45AM Nov 22, 2020Observed: 2.57 ft at 10:00AM Nov 22, 2020Observed: 2.57 ft at 10:15AM Nov 22, 2020Observed: 2.57 ft at 10:16AM Nov 22, 2020Observed: 2.57 ft at 10:30AM Nov 22, 2020Observed: 2.57 ft at 10:31AM Nov 22, 2020Observed: 2.57 ft at 10:45AM Nov 22, 2020Observed: 2.57 ft at 10:46AM Nov 22, 2020Observed: 2.57 ft at 11:00AM Nov 22, 2020Observed: 2.57 ft at 11:01AM Nov 22, 2020Observed: 2.57 ft at 11:15AM Nov 22, 2020Observed: 2.57 ft at 11:30AM Nov 22, 2020Observed: 2.57 ft at 11:45AM Nov 22, 2020Observed: 2.57 ft at 12:00PM Nov 22, 2020Observed: 2.57 ft at 12:15PM Nov 22, 2020Observed: 2.57 ft at 12:30PM Nov 22, 2020Observed: 2.57 ft at 12:45PM Nov 22, 2020Observed: 2.57 ft at 1:00PM Nov 22, 2020Observed: 2.57 ft at 1:15PM Nov 22, 2020Observed: 2.57 ft at 1:30PM Nov 22, 2020Observed: 2.57 ft at 1:45PM Nov 22, 2020Observed: 2.57 ft at 2:00PM Nov 22, 2020Observed: 2.57 ft at 2:15PM Nov 22, 2020Observed: 2.57 ft at 2:30PM Nov 22, 2020Observed: 2.57 ft at 2:45PM Nov 22, 2020Observed: 2.57 ft at 3:00PM Nov 22, 2020Observed: 2.57 ft at 3:15PM Nov 22, 2020Observed: 2.57 ft at 3:30PM Nov 22, 2020Observed: 2.57 ft at 3:45PM Nov 22, 2020Observed: 2.57 ft at 4:00PM Nov 22, 2020Observed: 2.57 ft at 4:15PM Nov 22, 2020Observed: 2.57 ft at 4:30PM Nov 22, 2020Observed: 2.57 ft at 4:45PM Nov 22, 2020Observed: 2.57 ft at 5:00PM Nov 22, 2020Observed: 2.57 ft at 5:15PM Nov 22, 2020Observed: 2.57 ft at 5:30PM Nov 22, 2020Observed: 2.57 ft at 5:45PM Nov 22, 2020Observed: 2.57 ft at 6:00PM Nov 22, 2020Observed: 2.57 ft at 6:15PM Nov 22, 2020Observed: 2.57 ft at 6:30PM Nov 22, 2020Observed: 2.57 ft at 6:45PM Nov 22, 2020Observed: 2.57 ft at 7:00PM Nov 22, 2020Observed: 2.57 ft at 7:15PM Nov 22, 2020Observed: 2.57 ft at 7:30PM Nov 22, 2020Observed: 2.57 ft at 7:45PM Nov 22, 2020Observed: 2.57 ft at 8:00PM Nov 22, 2020Observed: 2.57 ft at 8:15PM Nov 22, 2020Observed: 2.57 ft at 8:30PM Nov 22, 2020Observed: 2.57 ft at 8:45PM Nov 22, 2020Observed: 2.57 ft at 9:00PM Nov 22, 2020Observed: 2.57 ft at 9:15PM Nov 22, 2020Observed: 2.57 ft at 9:30PM Nov 22, 2020Observed: 2.57 ft at 9:45PM Nov 22, 2020Observed: 2.57 ft at 10:00PM Nov 22, 2020Observed: 2.57 ft at 10:15PM Nov 22, 2020Observed: 2.57 ft at 10:17PM Nov 22, 2020Observed: 2.57 ft at 10:30PM Nov 22, 2020Observed: 2.57 ft at 10:32PM Nov 22, 2020Observed: 2.57 ft at 10:45PM Nov 22, 2020Observed: 2.57 ft at 10:47PM Nov 22, 2020Observed: 2.57 ft at 11:00PM Nov 22, 2020Observed: 2.57 ft at 11:02PM Nov 22, 2020Observed: 2.57 ft at 11:15PM Nov 22, 2020Observed: 2.57 ft at 11:30PM Nov 22, 2020Observed: 2.57 ft at 11:45PM Nov 22, 2020Observed: 2.57 ft at 12:00AM Nov 23, 2020Observed: 2.57 ft at 12:15AM Nov 23, 2020Observed: 2.57 ft at 12:30AM Nov 23, 2020Observed: 2.57 ft at 12:45AM Nov 23, 2020Observed: 2.57 ft at 1:00AM Nov 23, 2020Observed: 2.57 ft at 1:15AM Nov 23, 2020Observed: 2.57 ft at 1:30AM Nov 23, 2020Observed: 2.57 ft at 1:45AM Nov 23, 2020Observed: 2.57 ft at 2:00AM Nov 23, 2020Observed: 2.57 ft at 2:15AM Nov 23, 2020Observed: 2.57 ft at 2:30AM Nov 23, 2020Observed: 2.57 ft at 2:45AM Nov 23, 2020Observed: 2.57 ft at 3:00AM Nov 23, 2020Observed: 2.57 ft at 3:15AM Nov 23, 2020Observed: 2.57 ft at 3:30AM Nov 23, 2020Observed: 2.57 ft at 3:45AM Nov 23, 2020Observed: 2.58 ft at 4:00AM Nov 23, 2020Observed: 2.58 ft at 4:15AM Nov 23, 2020Observed: 2.63 ft at 4:30AM Nov 23, 2020Observed: 2.64 ft at 4:45AM Nov 23, 2020Highest Observation: 2.65 ft at 5:00AM Nov 23, 2020Observed: 2.64 ft at 5:15AM Nov 23, 2020Observed: 2.63 ft at 5:30AM Nov 23, 2020Observed: 2.63 ft at 5:45AM Nov 23, 2020Observed: 2.62 ft at 6:00AM Nov 23, 2020Observed: 2.62 ft at 6:15AM Nov 23, 2020Observed: 2.62 ft at 6:30AM Nov 23, 2020Observed: 2.61 ft at 6:45AM Nov 23, 2020Observed: 2.61 ft at 7:00AM Nov 23, 2020Observed: 2.61 ft at 7:15AM Nov 23, 2020Observed: 2.6 ft at 7:30AM Nov 23, 2020Observed: 2.61 ft at 7:45AM Nov 23, 2020Observed: 2.62 ft at 8:00AM Nov 23, 2020Observed: 2.62 ft at 8:15AM Nov 23, 2020Observed: 2.63 ft at 8:30AM Nov 23, 2020Observed: 2.64 ft at 8:45AM Nov 23, 2020Observed: 2.64 ft at 9:00AM Nov 23, 2020Observed: 2.64 ft at 9:15AM Nov 23, 2020Highest Observation: 2.65 ft at 9:30AM Nov 23, 2020Highest Observation: 2.65 ft at 9:45AM Nov 23, 2020Highest Observation: 2.65 ft at 10:00AM Nov 23, 2020Observed: 2.64 ft at 10:15AM Nov 23, 2020Observed: 2.64 ft at 10:16AM Nov 23, 2020Observed: 2.63 ft at 10:30AM Nov 23, 2020Observed: 2.63 ft at 10:31AM Nov 23, 2020Observed: 2.61 ft at 10:45AM Nov 23, 2020Observed: 2.61 ft at 10:46AM Nov 23, 2020Observed: 2.6 ft at 11:00AM Nov 23, 2020Observed: 2.6 ft at 11:01AM Nov 23, 2020Observed: 2.59 ft at 11:15AM Nov 23, 2020Observed: 2.58 ft at 11:30AM Nov 23, 2020Observed: 2.57 ft at 11:45AM Nov 23, 2020Observed: 2.56 ft at 12:00PM Nov 23, 2020Observed: 2.56 ft at 12:15PM Nov 23, 2020Observed: 2.56 ft at 12:30PM Nov 23, 2020Observed: 2.55 ft at 12:45PM Nov 23, 2020Observed: 2.55 ft at 1:00PM Nov 23, 2020Observed: 2.55 ft at 1:15PM Nov 23, 2020Observed: 2.55 ft at 1:30PM Nov 23, 2020Observed: 2.55 ft at 1:45PM Nov 23, 2020Observed: 2.55 ft at 2:00PM Nov 23, 2020Observed: 2.55 ft at 2:15PM Nov 23, 2020Observed: 2.55 ft at 2:30PM Nov 23, 2020Observed: 2.55 ft at 2:45PM Nov 23, 2020Observed: 2.54 ft at 3:00PM Nov 23, 2020Observed: 2.55 ft at 3:15PM Nov 23, 2020Observed: 2.56 ft at 3:30PM Nov 23, 2020Observed: 2.55 ft at 3:45PM Nov 23, 2020Observed: 2.55 ft at 4:00PM Nov 23, 2020Observed: 2.55 ft at 4:15PM Nov 23, 2020Observed: 2.55 ft at 4:30PM Nov 23, 2020Observed: 2.55 ft at 4:45PM Nov 23, 2020Observed: 2.55 ft at 5:00PM Nov 23, 2020Observed: 2.54 ft at 5:15PM Nov 23, 2020Observed: 2.54 ft at 5:30PM Nov 23, 2020Observed: 2.54 ft at 5:45PM Nov 23, 2020Observed: 2.54 ft at 6:00PM Nov 23, 2020Observed: 2.54 ft at 6:15PM Nov 23, 2020Observed: 2.54 ft at 6:30PM Nov 23, 2020Observed: 2.54 ft at 6:45PM Nov 23, 2020Observed: 2.53 ft at 7:00PM Nov 23, 2020Observed: 2.53 ft at 7:15PM Nov 23, 2020Observed: 2.53 ft at 7:30PM Nov 23, 2020Observed: 2.53 ft at 7:45PM Nov 23, 2020Observed: 2.53 ft at 8:00PM Nov 23, 2020Observed: 2.53 ft at 8:15PM Nov 23, 2020Observed: 2.53 ft at 8:30PM Nov 23, 2020Observed: 2.53 ft at 8:45PM Nov 23, 2020Observed: 2.53 ft at 9:00PM Nov 23, 2020Observed: 2.52 ft at 9:15PM Nov 23, 2020Observed: 2.52 ft at 9:30PM Nov 23, 2020Observed: 2.52 ft at 9:45PM Nov 23, 2020Observed: 2.52 ft at 10:00PM Nov 23, 2020Observed: 2.52 ft at 10:15PM Nov 23, 2020Observed: 2.52 ft at 10:16PM Nov 23, 2020Observed: 2.52 ft at 10:30PM Nov 23, 2020Observed: 2.52 ft at 10:31PM Nov 23, 2020Observed: 2.52 ft at 10:45PM Nov 23, 2020Observed: 2.52 ft at 10:46PM Nov 23, 2020Observed: 2.52 ft at 11:00PM Nov 23, 2020Observed: 2.52 ft at 11:01PM Nov 23, 2020Observed: 2.52 ft at 11:15PM Nov 23, 2020Observed: 2.52 ft at 11:30PM Nov 23, 2020Observed: 2.52 ft at 11:45PM Nov 23, 2020Observed: 2.52 ft at 12:00AM Nov 24, 2020Observed: 2.52 ft at 12:15AM Nov 24, 2020Observed: 2.52 ft at 12:30AM Nov 24, 2020Observed: 2.52 ft at 12:45AM Nov 24, 2020Observed: 2.52 ft at 1:00AM Nov 24, 2020Observed: 2.52 ft at 1:15AM Nov 24, 2020Observed: 2.53 ft at 1:30AM Nov 24, 2020Observed: 2.52 ft at 1:45AM Nov 24, 2020USGS--Water Resources of the United StatesAPAP1(plotting HGIRG) Graph Created (2:17AM Nov 24, 2020)ObservedLatest observed value: 2.52 ft at 1:45 AM EST 24-Nov-2020. Flood Stage is 8 ft
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About this graph
Tabular Data (UTC)
Tabular Data (EST)
XML Data
RSS Files
Datum: Not Available
Metadata
NOTE: Forecasts for the Little Lehigh Creek at Allentown are issued as needed during times of high water, but are not routinely available.
Return to Area Map
Upstream Gauge - near Allentown Upstream Gauge
Flood Categories (in feet)
Major Flood Stage: 12
Moderate Flood Stage: 10
Flood Stage: 8
Action Stage: 6
Low Stage (in feet): 0

Historic Crests
(1) 12.69 ft on 08/04/2020
(2) 11.05 ft on 10/08/2005
(3) 10.65 ft on 09/18/2004
(4) 9.88 ft on 08/28/2011
(5) 9.47 ft on 09/09/1987
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 12.69 ft on 08/04/2020
(2) 8.00 ft on 11/03/2018
(3) 5.83 ft on 09/07/2011
(4) 9.88 ft on 08/28/2011
(5) 5.21 ft on 03/11/2011
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: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
12 Flooding expands along Martin Luther King Jr. Drive.
11 Portions of the Little Lehigh Parkway pathways in Little Lehigh Park are damages or destroyed.
10 Water is several feet deep on Martin Luther King Jr. Drive near Lehigh Street. Businesses are flooded.
9 Fish Hatchery Road is flooded.
8 Martin Luther King Jr. Drive begins to flood near Lehigh Street.
7 The Fountain Park pathway floods.
6 Fountain Park begins to flood.
About This Location Collapse

Latitude: 40.596389° N, Longitude: 75.474444° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame
Gauge Height Flood Stage Uses
NWS stage 0 ft 8 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 Not Available Not Available Older USGS topographic maps, NGVD29 benchmarks
MSL Not Available Not Available Older USGS topographic maps, MSL benchmarks
Other 245.63 ft 253.63 ft  

Current/Historical Observations:

Additional Information Collapse
During winter months, cold and ice may result in inaccurate real-time stream stage and streamflow data. Adjustments or deletions of this data can only be done after detailed analysis.
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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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Page last modified: 30-Oct-2020 4:10 PM
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