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
Broad Run near Bristow Stage (ft)Observed: 1.41 ft at 3:00AM Sep 20, 2021Observed: 1.41 ft at 4:00AM Sep 20, 2021Observed: 1.4 ft at 5:00AM Sep 20, 2021Observed: 1.41 ft at 6:00AM Sep 20, 2021Observed: 1.4 ft at 7:00AM Sep 20, 2021Observed: 1.4 ft at 8:00AM Sep 20, 2021Observed: 1.4 ft at 9:00AM Sep 20, 2021Observed: 1.4 ft at 10:00AM Sep 20, 2021Observed: 1.4 ft at 11:00AM Sep 20, 2021Observed: 1.39 ft at 12:00PM Sep 20, 2021Observed: 1.39 ft at 1:00PM Sep 20, 2021Observed: 1.39 ft at 2:00PM Sep 20, 2021Observed: 1.38 ft at 3:00PM Sep 20, 2021Observed: 1.39 ft at 4:00PM Sep 20, 2021Observed: 1.36 ft at 6:00AM Sep 21, 2021Observed: 1.36 ft at 7:00AM Sep 21, 2021Observed: 1.36 ft at 8:00AM Sep 21, 2021Observed: 1.36 ft at 9:00AM Sep 21, 2021Observed: 1.35 ft at 10:00AM Sep 21, 2021Observed: 1.35 ft at 11:00AM Sep 21, 2021Observed: 1.35 ft at 12:00PM Sep 21, 2021Observed: 1.35 ft at 1:00PM Sep 21, 2021Observed: 1.35 ft at 2:00PM Sep 21, 2021Observed: 1.35 ft at 3:00PM Sep 21, 2021Observed: 1.35 ft at 4:00PM Sep 21, 2021Observed: 1.35 ft at 5:00PM Sep 21, 2021Observed: 1.35 ft at 6:00PM Sep 21, 2021Observed: 1.35 ft at 5:00AM Sep 22, 2021Observed: 1.35 ft at 6:00AM Sep 22, 2021Observed: 1.35 ft at 7:00AM Sep 22, 2021Observed: 1.36 ft at 8:00AM Sep 22, 2021Observed: 1.36 ft at 9:00AM Sep 22, 2021Observed: 1.37 ft at 10:00AM Sep 22, 2021Observed: 1.38 ft at 11:00AM Sep 22, 2021Observed: 1.4 ft at 12:00PM Sep 22, 2021Observed: 1.43 ft at 1:00PM Sep 22, 2021Observed: 1.48 ft at 2:00PM Sep 22, 2021Observed: 1.49 ft at 3:00PM Sep 22, 2021Observed: 1.54 ft at 3:54PM Sep 22, 2021Observed: 1.56 ft at 4:00PM Sep 22, 2021Observed: 1.57 ft at 4:15PM Sep 22, 2021Observed: 1.6 ft at 4:30PM Sep 22, 2021Observed: 1.65 ft at 4:45PM Sep 22, 2021Observed: 1.67 ft at 5:00PM Sep 22, 2021Observed: 1.69 ft at 5:15PM Sep 22, 2021Observed: 1.7 ft at 5:30PM Sep 22, 2021Observed: 1.72 ft at 5:45PM Sep 22, 2021Observed: 1.73 ft at 6:00PM Sep 22, 2021Observed: 1.74 ft at 6:15PM Sep 22, 2021Observed: 1.76 ft at 6:30PM Sep 22, 2021Observed: 1.77 ft at 6:45PM Sep 22, 2021Observed: 1.78 ft at 7:00PM Sep 22, 2021Observed: 1.79 ft at 7:15PM Sep 22, 2021Observed: 1.8 ft at 7:30PM Sep 22, 2021Observed: 1.8 ft at 7:45PM Sep 22, 2021Observed: 1.8 ft at 8:00PM Sep 22, 2021Observed: 1.8 ft at 8:15PM Sep 22, 2021Observed: 1.8 ft at 8:30PM Sep 22, 2021Observed: 1.8 ft at 8:45PM Sep 22, 2021Observed: 1.8 ft at 9:00PM Sep 22, 2021Observed: 1.81 ft at 9:15PM Sep 22, 2021Observed: 1.81 ft at 9:30PM Sep 22, 2021Observed: 1.81 ft at 9:45PM Sep 22, 2021Observed: 1.82 ft at 10:00PM Sep 22, 2021Observed: 1.82 ft at 10:15PM Sep 22, 2021Observed: 1.82 ft at 10:30PM Sep 22, 2021Observed: 1.81 ft at 10:45PM Sep 22, 2021Observed: 1.81 ft at 11:00PM Sep 22, 2021Observed: 1.79 ft at 12:15AM Sep 23, 2021Observed: 1.78 ft at 12:30AM Sep 23, 2021Observed: 1.78 ft at 12:45AM Sep 23, 2021Observed: 1.79 ft at 1:00AM Sep 23, 2021Observed: 1.85 ft at 2:00AM Sep 23, 2021Observed: 1.87 ft at 3:00AM Sep 23, 2021Observed: 1.89 ft at 4:00AM Sep 23, 2021Observed: 1.92 ft at 5:00AM Sep 23, 2021Observed: 1.97 ft at 5:20AM Sep 23, 2021Observed: 2.01 ft at 5:30AM Sep 23, 2021Observed: 2.11 ft at 5:45AM Sep 23, 2021Observed: 2.22 ft at 6:00AM Sep 23, 2021Observed: 2.37 ft at 6:15AM Sep 23, 2021Observed: 2.53 ft at 6:30AM Sep 23, 2021Observed: 2.7 ft at 6:45AM Sep 23, 2021Observed: 2.88 ft at 7:00AM Sep 23, 2021Observed: 2.98 ft at 7:15AM Sep 23, 2021Observed: 3.04 ft at 7:30AM Sep 23, 2021Observed: 3.08 ft at 7:45AM Sep 23, 2021Observed: 3.13 ft at 7:58AM Sep 23, 2021Observed: 3.16 ft at 8:00AM Sep 23, 2021Observed: 3.5 ft at 8:15AM Sep 23, 2021Observed: 4.25 ft at 8:30AM Sep 23, 2021Observed: 4.83 ft at 8:45AM Sep 23, 2021Observed: 5.06 ft at 8:52AM Sep 23, 2021Observed: 5.26 ft at 9:00AM Sep 23, 2021Observed: 5.62 ft at 9:15AM Sep 23, 2021Observed: 5.72 ft at 9:22AM Sep 23, 2021Observed: 5.84 ft at 9:30AM Sep 23, 2021Observed: 6 ft at 9:45AM Sep 23, 2021Observed: 6.04 ft at 9:48AM Sep 23, 2021Observed: 6.12 ft at 10:00AM Sep 23, 2021Observed: 6.22 ft at 10:15AM Sep 23, 2021Observed: 6.25 ft at 10:30AM Sep 23, 2021Observed: 6.26 ft at 10:35AM Sep 23, 2021Observed: 6.31 ft at 10:45AM Sep 23, 2021Observed: 6.33 ft at 10:58AM Sep 23, 2021Observed: 6.31 ft at 11:00AM Sep 23, 2021Observed: 6.43 ft at 11:20AM Sep 23, 2021Observed: 6.52 ft at 11:30AM Sep 23, 2021Observed: 6.64 ft at 11:41AM Sep 23, 2021Observed: 6.65 ft at 11:45AM Sep 23, 2021Observed: 6.82 ft at 12:00PM Sep 23, 2021Observed: 6.77 ft at 12:01PM Sep 23, 2021Observed: 6.96 ft at 12:20PM Sep 23, 2021Observed: 7.05 ft at 12:30PM Sep 23, 2021Observed: 7.06 ft at 12:38PM Sep 23, 2021Observed: 7.13 ft at 12:45PM Sep 23, 2021Observed: 7.13 ft at 12:56PM Sep 23, 2021Observed: 7.22 ft at 1:00PM Sep 23, 2021Observed: 7.24 ft at 1:30PM Sep 23, 2021Highest Observation: 7.26 ft at 1:31PM Sep 23, 2021Observed: 7.21 ft at 1:45PM Sep 23, 2021Observed: 7.23 ft at 1:48PM Sep 23, 2021Observed: 7.21 ft at 2:00PM Sep 23, 2021Observed: 7.21 ft at 2:05PM Sep 23, 2021Observed: 7.19 ft at 2:23PM Sep 23, 2021Observed: 7.14 ft at 2:30PM Sep 23, 2021Observed: 7.11 ft at 2:41PM Sep 23, 2021Observed: 7.11 ft at 2:45PM Sep 23, 2021Observed: 7.06 ft at 2:59PM Sep 23, 2021Observed: 7.07 ft at 3:00PM Sep 23, 2021Observed: 7.02 ft at 3:17PM Sep 23, 2021Observed: 6.95 ft at 3:30PM Sep 23, 2021Observed: 6.93 ft at 3:36PM Sep 23, 2021Observed: 6.89 ft at 3:45PM Sep 23, 2021Observed: 6.88 ft at 3:55PM Sep 23, 2021Observed: 6.88 ft at 4:00PM Sep 23, 2021Observed: 6.85 ft at 4:15PM Sep 23, 2021Observed: 6.77 ft at 4:30PM Sep 23, 2021Observed: 6.76 ft at 4:34PM Sep 23, 2021Observed: 6.75 ft at 4:45PM Sep 23, 2021Observed: 6.73 ft at 4:54PM Sep 23, 2021Observed: 6.7 ft at 5:00PM Sep 23, 2021Observed: 6.64 ft at 5:15PM Sep 23, 2021Observed: 6.6 ft at 5:30PM Sep 23, 2021Observed: 6.57 ft at 5:35PM Sep 23, 2021Observed: 6.52 ft at 5:45PM Sep 23, 2021Observed: 6.48 ft at 5:56PM Sep 23, 2021Observed: 6.45 ft at 6:00PM Sep 23, 2021Observed: 6.33 ft at 6:18PM Sep 23, 2021Observed: 6.2 ft at 6:30PM Sep 23, 2021Observed: 6.06 ft at 6:41PM Sep 23, 2021Observed: 6.03 ft at 6:45PM Sep 23, 2021Observed: 5.79 ft at 7:00PM Sep 23, 2021Observed: 5.65 ft at 7:07PM Sep 23, 2021Observed: 5.51 ft at 7:15PM Sep 23, 2021Observed: 5.28 ft at 7:30PM Sep 23, 2021Observed: 5.17 ft at 7:37PM Sep 23, 2021Observed: 5.04 ft at 7:45PM Sep 23, 2021Observed: 4.9 ft at 8:00PM Sep 23, 2021Observed: 4.76 ft at 8:13PM Sep 23, 2021Observed: 4.74 ft at 8:15PM Sep 23, 2021Observed: 4.55 ft at 8:30PM Sep 23, 2021Observed: 4.36 ft at 8:45PM Sep 23, 2021Observed: 4.2 ft at 8:56PM Sep 23, 2021Observed: 4.12 ft at 9:00PM Sep 23, 2021Observed: 3.88 ft at 9:15PM Sep 23, 2021Observed: 3.6 ft at 9:30PM Sep 23, 2021Observed: 3.38 ft at 9:45PM Sep 23, 2021Observed: 3.18 ft at 10:00PM Sep 23, 2021Observed: 3.14 ft at 10:03PM Sep 23, 2021Observed: 3.01 ft at 10:15PM Sep 23, 2021Observed: 2.87 ft at 10:30PM Sep 23, 2021Observed: 2.76 ft at 10:45PM Sep 23, 2021Observed: 2.67 ft at 11:00PM Sep 23, 2021Observed: 2.17 ft at 2:08AM Sep 24, 2021Observed: 2.17 ft at 2:10AM Sep 24, 2021Observed: 2.17 ft at 2:15AM Sep 24, 2021Observed: 2.15 ft at 2:30AM Sep 24, 2021Observed: 2.14 ft at 2:41AM Sep 24, 2021Observed: 2.12 ft at 3:00AM Sep 24, 2021Observed: 2.08 ft at 4:00AM Sep 24, 2021Observed: 2.05 ft at 5:00AM Sep 24, 2021Virginia Tech Occoquan Watershed Monitoring LaboratoryBRSV2(plotting HGIRZ) Graph Created (7:10AM Sep 24, 2021)ObservedLatest observed value: 2.05 ft at 5:00 AM EDT 24-Sep-2021. Flood Stage is 9.5 ft
Printable Image
About this graph
Tabular Data (UTC)
Tabular Data (EDT)
XML Data
RSS Files
Datum: Not Available
Metadata
NOTE: Forecasts are not available for the Broad Run near Bristow. Only observed stages are available for this point.
Return to Area Map
Flood Categories (in feet)
Major Flood Stage: 20
Moderate Flood Stage: 16
Flood Stage: 9.5
Action Stage: 8.5
Low Stage (in feet): -9999

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.
Flood Impacts & Photos Collapse
If you notice any errors in the below information, please contact our Webmaster
20 Water approaches the runways at Manassas Regional Airport.
16 Water approaches backyards in the Kingsbrooke neighborhood.
9.5 Piper Lane is flooded near Manassas Airport. Trails near the stream are also flooded.
8.5 Trails near the stream begin to flood. People should move away from the stream.
About This Location Collapse

Latitude: 38.749425° N, Longitude: 77.563289° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame
Gauge Height Flood Stage Uses
NWS stage 0 ft 9.5 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  
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: 2-Nov-2020 7:30 PM
Disclaimer
Credits
Glossary
Privacy Policy
About Us
Career Opportunities