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Hydrograph River at a Glance Download
Gwynns Falls Tributary at McDonogh Stage (ft)Observed: 0.66 ft at 9:20AM Mar 21, 2023Observed: 0.78 ft at 9:15PM Mar 21, 2023Observed: 0.78 ft at 9:20PM Mar 21, 2023Observed: 0.74 ft at 3:20AM Mar 22, 2023Observed: 0.78 ft at 9:20AM Mar 22, 2023Observed: 0.89 ft at 7:05PM Mar 22, 2023Observed: 0.82 ft at 9:05PM Mar 22, 2023Observed: 0.86 ft at 9:20PM Mar 22, 2023Observed: 0.78 ft at 11:35PM Mar 22, 2023Observed: 0.82 ft at 3:20AM Mar 23, 2023Observed: 0.82 ft at 9:20AM Mar 23, 2023Observed: 0.89 ft at 12:15PM Mar 23, 2023Observed: 0.97 ft at 12:50PM Mar 23, 2023Observed: 1.05 ft at 2:15PM Mar 23, 2023Observed: 1.09 ft at 3:20PM Mar 23, 2023Observed: 1.01 ft at 8:45PM Mar 23, 2023Observed: 1.01 ft at 9:20PM Mar 23, 2023Observed: 0.93 ft at 3:20AM Mar 24, 2023Observed: 1.32 ft at 6:50PM Mar 24, 2023Observed: 1.24 ft at 8:50PM Mar 24, 2023Observed: 1.24 ft at 9:20PM Mar 24, 2023Observed: 1.32 ft at 12:50AM Mar 25, 2023Observed: 1.4 ft at 1:45AM Mar 25, 2023Observed: 1.48 ft at 2:10AM Mar 25, 2023Observed: 1.56 ft at 2:25AM Mar 25, 2023Observed: 1.63 ft at 2:35AM Mar 25, 2023Observed: 1.71 ft at 2:50AM Mar 25, 2023Observed: 1.79 ft at 2:55AM Mar 25, 2023Observed: 1.87 ft at 3:00AM Mar 25, 2023Observed: 1.94 ft at 3:05AM Mar 25, 2023Observed: 2.02 ft at 3:15AM Mar 25, 2023Observed: 2.14 ft at 3:20AM Mar 25, 2023Observed: 2.22 ft at 3:30AM Mar 25, 2023Observed: 2.29 ft at 3:35AM Mar 25, 2023Observed: 2.37 ft at 3:45AM Mar 25, 2023Observed: 2.53 ft at 4:00AM Mar 25, 2023Observed: 2.6 ft at 4:05AM Mar 25, 2023Observed: 2.68 ft at 4:20AM Mar 25, 2023Observed: 2.76 ft at 4:35AM Mar 25, 2023Highest Observation: 2.84 ft at 5:05AM Mar 25, 2023Observed: 2.76 ft at 6:35AM Mar 25, 2023Observed: 2.68 ft at 7:35AM Mar 25, 2023Observed: 2.53 ft at 9:10AM Mar 25, 2023Observed: 2.53 ft at 9:20AM Mar 25, 2023Observed: 2.37 ft at 10:50AM Mar 25, 2023Observed: 2.29 ft at 11:35AM Mar 25, 2023Observed: 2.22 ft at 12:20PM Mar 25, 2023Observed: 2.14 ft at 1:30PM Mar 25, 2023Observed: 2.22 ft at 3:20PM Mar 25, 2023Observed: 2.29 ft at 3:40PM Mar 25, 2023Observed: 2.37 ft at 4:00PM Mar 25, 2023Observed: 2.45 ft at 4:25PM Mar 25, 2023Observed: 2.6 ft at 6:25PM Mar 25, 2023Observed: 2.53 ft at 7:10PM Mar 25, 2023Observed: 2.45 ft at 8:35PM Mar 25, 2023Observed: 2.41 ft at 9:20PM Mar 25, 2023Observed: 2.25 ft at 11:00PM Mar 25, 2023Observed: 2.1 ft at 1:05AM Mar 26, 2023Observed: 2.02 ft at 1:55AM Mar 26, 2023Observed: 1.94 ft at 3:20AM Mar 26, 2023MBOM2(plotting HGIRR) Graph Created (3:55AM Mar 26, 2023)ObservedLatest observed value: 1.94 ft at 3:20 AM EDT 26-Mar-2023. Flood Stage is 18 ft
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Tabular Data (UTC)
Tabular Data (EDT)
XML Data
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Datum: Not Available
Metadata
NOTE: Forecasts are not available for the Gwynns Falls Tributary at McDonogh. Only observed stages are available for this point.
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Not Available

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Currently none available.

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Currently none available.
Zoom Level:16
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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.
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Latitude: 39.400556° N, Longitude: 76.770556° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame		 Gauge Height Flood Stage Uses
NWS stage 0 ft Not Available 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 Not Available Not Available  

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