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
Gwynns Falls Tributary at McDonogh Stage (ft)Observed: 1.24 ft at 12:20PM Jul 16, 2019Observed: 1.32 ft at 1:30PM Jul 16, 2019Observed: 1.28 ft at 2:30PM Jul 16, 2019Observed: 1.21 ft at 5:20PM Jul 16, 2019Observed: 1.13 ft at 7:20PM Jul 16, 2019Observed: 1.13 ft at 8:30PM Jul 16, 2019Observed: 1.09 ft at 2:30AM Jul 17, 2019Observed: 1.09 ft at 8:30AM Jul 17, 2019Observed: 1.17 ft at 10:30AM Jul 17, 2019Observed: 1.24 ft at 12:30PM Jul 17, 2019Observed: 1.32 ft at 1:25PM Jul 17, 2019Observed: 1.28 ft at 2:30PM Jul 17, 2019Observed: 1.21 ft at 4:10PM Jul 17, 2019Observed: 1.13 ft at 6:20PM Jul 17, 2019Observed: 1.05 ft at 7:35PM Jul 17, 2019Observed: 1.05 ft at 8:30PM Jul 17, 2019Observed: 1.01 ft at 2:30AM Jul 18, 2019Observed: 1.09 ft at 4:30AM Jul 18, 2019Observed: 1.17 ft at 6:20AM Jul 18, 2019Observed: 1.24 ft at 7:05AM Jul 18, 2019Observed: 1.28 ft at 8:30AM Jul 18, 2019Observed: 1.36 ft at 10:30AM Jul 18, 2019Highest Observation: 1.44 ft at 12:30PM Jul 18, 2019Observed: 1.36 ft at 12:50PM Jul 18, 2019Observed: 1.36 ft at 2:30PM Jul 18, 2019Observed: 1.28 ft at 6:30PM Jul 18, 2019Observed: 1.21 ft at 8:10PM Jul 18, 2019Observed: 1.21 ft at 8:30PM Jul 18, 2019Observed: 1.13 ft at 10:00PM Jul 18, 2019Observed: 1.17 ft at 2:30AM Jul 19, 2019Observed: 1.24 ft at 3:30AM Jul 19, 2019Observed: 1.17 ft at 7:25AM Jul 19, 2019Observed: 1.17 ft at 8:30AM Jul 19, 2019Observed: 1.24 ft at 10:30AM Jul 19, 2019Observed: 1.32 ft at 12:15PM Jul 19, 2019Observed: 1.36 ft at 2:30PM Jul 19, 2019Observed: 1.28 ft at 3:30PM Jul 19, 2019Observed: 1.21 ft at 6:25PM Jul 19, 2019Observed: 1.13 ft at 8:30PM Jul 19, 2019Observed: 1.05 ft at 1:05AM Jul 20, 2019Observed: 1.05 ft at 2:30AM Jul 20, 2019Observed: 1.05 ft at 8:30AM Jul 20, 2019Observed: 1.21 ft at 12:30PM Jul 20, 2019Observed: 1.28 ft at 1:30PM Jul 20, 2019Observed: 1.24 ft at 2:30PM Jul 20, 2019Observed: 1.17 ft at 5:20PM Jul 20, 2019Observed: 1.09 ft at 8:20PM Jul 20, 2019Observed: 1.09 ft at 8:30PM Jul 20, 2019Observed: 1.01 ft at 10:10PM Jul 20, 2019Observed: 1.09 ft at 10:30PM Jul 20, 2019Observed: 1.01 ft at 10:50PM Jul 20, 2019Observed: 1.01 ft at 2:30AM Jul 21, 2019MBOM2(plotting HGIRR) Graph Created (9:39AM Jul 21, 2019)ObservedLatest observed value: 1.01 ft at 2:30 AM EDT 21-Jul-2019. Flood Stage is 18 ft
About this graph
Tabular Data (UTC)
Tabular Data (EDT)
XML Data
RSS Files
Datum: Not Available
Metadata
NOTE: Forecasts are not available for the Gwynns Falls Tributary at McDonogh. Only observed stages are available for this point.
Return to Area Map
Flood Categories (in feet)
Not Available

Historic Crests
Currently none available.

Recent Crests
Currently none available.

Low Water Records
Currently none available.
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.
About This Location Collapse

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  

Current/Historical Observations:

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
(Baltimore/Washington) Sterling Weather Forecast Office
43858 Weather Service Rd.
Sterling, VA 20166
(703) 996-2200
Ask Questions/Webmaster
Page last modified: 1-Mar-2019 12:35 AM
Disclaimer
Credits
Glossary
Privacy Policy
About Us
Career Opportunities