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Hydrograph River at a Glance Download
Colvin Run at Lake Fairfax near Reston Pool (ft)Observed: 261.43 ft at 2:45PM Aug 18, 2019Observed: 261.42 ft at 8:45PM Aug 18, 2019Observed: 261.42 ft at 2:45AM Aug 19, 2019Observed: 261.42 ft at 8:45AM Aug 19, 2019Observed: 261.42 ft at 2:45PM Aug 19, 2019Observed: 261.41 ft at 8:45PM Aug 19, 2019Observed: 261.47 ft at 10:35PM Aug 19, 2019Observed: 261.53 ft at 10:40PM Aug 19, 2019Observed: 261.58 ft at 10:50PM Aug 19, 2019Observed: 261.69 ft at 10:55PM Aug 19, 2019Observed: 261.75 ft at 11:00PM Aug 19, 2019Observed: 261.92 ft at 11:05PM Aug 19, 2019Observed: 262.04 ft at 11:10PM Aug 19, 2019Observed: 262.23 ft at 11:15PM Aug 19, 2019Observed: 262.37 ft at 11:20PM Aug 19, 2019Observed: 262.55 ft at 11:25PM Aug 19, 2019Observed: 262.66 ft at 11:30PM Aug 19, 2019Observed: 262.76 ft at 11:35PM Aug 19, 2019Observed: 262.87 ft at 11:40PM Aug 19, 2019Highest Observation: 262.93 ft at 11:45PM Aug 19, 2019Observed: 262.88 ft at 12:15AM Aug 20, 2019Observed: 262.83 ft at 12:20AM Aug 20, 2019Observed: 262.78 ft at 12:30AM Aug 20, 2019Observed: 262.73 ft at 12:35AM Aug 20, 2019Observed: 262.68 ft at 12:40AM Aug 20, 2019Observed: 262.63 ft at 12:50AM Aug 20, 2019Observed: 262.57 ft at 12:55AM Aug 20, 2019Observed: 262.52 ft at 1:05AM Aug 20, 2019Observed: 262.47 ft at 1:10AM Aug 20, 2019Observed: 262.41 ft at 1:15AM Aug 20, 2019Observed: 262.36 ft at 1:25AM Aug 20, 2019Observed: 262.31 ft at 1:30AM Aug 20, 2019Observed: 262.26 ft at 1:40AM Aug 20, 2019Observed: 262.21 ft at 1:50AM Aug 20, 2019Observed: 262.16 ft at 2:00AM Aug 20, 2019Observed: 262.11 ft at 2:10AM Aug 20, 2019Observed: 262.05 ft at 2:25AM Aug 20, 2019Observed: 262 ft at 2:40AM Aug 20, 2019Observed: 261.97 ft at 2:45AM Aug 20, 2019Observed: 261.92 ft at 3:05AM Aug 20, 2019Observed: 261.87 ft at 3:20AM Aug 20, 2019Observed: 261.82 ft at 3:45AM Aug 20, 2019Observed: 261.77 ft at 4:15AM Aug 20, 2019Observed: 261.72 ft at 5:00AM Aug 20, 2019Observed: 261.67 ft at 5:50AM Aug 20, 2019Observed: 261.62 ft at 7:10AM Aug 20, 2019Observed: 261.59 ft at 8:45AM Aug 20, 2019Observed: 261.54 ft at 1:30PM Aug 20, 2019Observed: 261.53 ft at 2:45PM Aug 20, 2019Observed: 261.58 ft at 5:50PM Aug 20, 2019Observed: 261.63 ft at 6:00PM Aug 20, 2019Observed: 261.73 ft at 6:05PM Aug 20, 2019Observed: 261.84 ft at 6:10PM Aug 20, 2019Observed: 261.99 ft at 6:15PM Aug 20, 2019Observed: 262.1 ft at 6:20PM Aug 20, 2019Observed: 262.2 ft at 6:25PM Aug 20, 2019Observed: 262.33 ft at 6:30PM Aug 20, 2019Observed: 262.38 ft at 6:35PM Aug 20, 2019Observed: 262.48 ft at 6:40PM Aug 20, 2019Observed: 262.53 ft at 6:50PM Aug 20, 2019Observed: 262.48 ft at 7:45PM Aug 20, 2019Observed: 262.43 ft at 7:55PM Aug 20, 2019Observed: 262.38 ft at 8:15PM Aug 20, 2019Observed: 262.33 ft at 8:30PM Aug 20, 2019Observed: 262.27 ft at 8:45PM Aug 20, 2019Observed: 262.22 ft at 9:00PM Aug 20, 2019Observed: 262.17 ft at 9:15PM Aug 20, 2019Observed: 262.12 ft at 9:30PM Aug 20, 2019Observed: 262.07 ft at 9:45PM Aug 20, 2019Observed: 262.02 ft at 10:05PM Aug 20, 2019Observed: 261.97 ft at 10:20PM Aug 20, 2019Observed: 261.92 ft at 10:45PM Aug 20, 2019Observed: 261.87 ft at 11:05PM Aug 20, 2019Observed: 261.82 ft at 11:35PM Aug 20, 2019Observed: 261.77 ft at 12:10AM Aug 21, 2019Observed: 261.72 ft at 1:05AM Aug 21, 2019Observed: 261.67 ft at 2:00AM Aug 21, 2019Observed: 261.65 ft at 2:45AM Aug 21, 2019Observed: 261.6 ft at 4:50AM Aug 21, 2019Observed: 261.55 ft at 7:45AM Aug 21, 2019Observed: 261.55 ft at 8:45AM Aug 21, 2019Observed: 261.52 ft at 2:45PM Aug 21, 2019Observed: 261.5 ft at 8:45PM Aug 21, 2019Observed: 261.47 ft at 2:45AM Aug 22, 2019Observed: 261.46 ft at 8:45AM Aug 22, 2019Observed: 261.46 ft at 2:45PM Aug 22, 2019Observed: 261.45 ft at 8:45PM Aug 22, 2019Observed: 261.44 ft at 2:45AM Aug 23, 2019Observed: 261.44 ft at 8:45AM Aug 23, 2019LFFV2(plotting HPIRR) Graph Created (1:39PM Aug 23, 2019)ObservedLatest observed value: 261.44 ft at 8:45 AM EDT 23-Aug-2019.
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Datum: Not Available
Metadata
NOTE: Forecasts are not available for the Colvin Run at Lake Fairfax near Reston. Only observed stages are available for this point.
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Flood Categories (in feet)
Not Available

Historic Crests
Currently none available.

Recent Crests
Currently none available.

Low Water Records
Currently none available.

For more information on your flood risk go to www.floodsmart.gov.

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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: 38.964444° N, Longitude: 77.317500° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame
Gauge Height Flood Stage Uses
NWS stage 0 ft Not Available  
Vertical Datum Elevation
(gauge height = 0)
Elevation
(gauge height = flood stage)
Elevation information source
NAVD88 Not Available Not Available  
NGVD 29 Not Available Not Available  
MSL Not Available Not Available  
Other Not Available Not Available  
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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.
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(Baltimore/Washington) Sterling Weather Forecast Office
43858 Weather Service Rd.
Sterling, VA 20166
(703) 996-2200
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Page last modified: 1-Mar-2019 12:35 AM
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