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Weather Forecast Office (Baltimore/Washington) Sterling, VA

Middle Atlantic River Forecast Center

Hydrograph

River at a Glance

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Printable Image About this graph Tabular Data (UTC) Tabular Data (EDT) Datum: Not Available Metadata

NOTE: Forecasts are not available for the Baisman Run at Broadmoor. Only observed stages are available for this point.

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Flood Categories (in feet) Major Flood Stage: 9 Moderate Flood Stage: 6 Flood Stage: 4 Action Stage: 3 Low Stage (in feet): -9999 Historic Crests (1) 6.08 ft on 06/22/1972 (2) 5.61 ft on 07/25/2018 (3) 5.43 ft on 09/10/1968 (4) 5.34 ft on 08/26/2012 (5) 4.85 ft on 11/16/2006 Show More Historic Crests (P): Preliminary values subject to further review. Recent Crests (1) 5.61 ft on 07/25/2018 (2) 3.91 ft on 09/29/2015 (3) 4.07 ft on 04/30/2014 (4) 5.34 ft on 08/26/2012 (5) 4.54 ft on 09/07/2011 Show More Recent Crests (P): Preliminary values subject to further review. Low Water Records Currently none available.

Zoom Level:16 Legend FEMA Layer Gauge Location 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

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9	Ivy Hill Road is completely flooded at Baisman Run.
6	Water approaches a home near the stream.
5	Water approaches the porch area of a home on the downstream right bank of the stream.
4	Water reaches an access road on the downstream left bank of the stream.

About This Location

Latitude: 39.479444° N, Longitude: 76.678056° W, Horizontal Datum: NAD83/WGS84 River Stage Reference Frame Gauge Height Flood Stage Uses NWS stage 0 ft 4 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 Not Available Not Available   Current/Historical Observations: U.S. Geological Survey (USGS) Data and Site Info for Broadmoor

Resources

Hydrologic Resources Text Products Past Precipitation Forecast Precipitation River Forecast Centers River Stage Summary Automated Flood Warning Systems Inundation Mapping Locations

Additional Resources Area Hydrographs NWS Precipitation and River Forecasting AHPS Iframes for Developers Mobile iNWS for emergency management Snow Information Ensemble River Forecasts Hourly Precipitation

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