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Web Portal Changes: The Advanced Hydrologic Prediction Service (AHPS) hosted at will be replaced by the National Water Prediction Service (NWPS), with a target of March 2024. Existing AHPS content and features will be preserved and expanded within NWPS.

Experimental National Water Center Products: The National Hydrologic Discussion, Area Hydrologic Discussion, and Flood Hazard Outlook, and real-time geospatial services depicting River Forecast Center and National Water Model forecasts, continue to be accessible via, as described in the StoryMap here.

Hydrograph River at a Glance Download
Backlick Run at Armistead Boothe Park Stage (ft)Observed: 0 ft at 2:05PM Jun 03, 2023Observed: 0.02 ft at 8:05PM Jun 03, 2023Observed: 0.1 ft at 2:05AM Jun 04, 2023Observed: 0.1 ft at 8:05AM Jun 04, 2023Observed: 0 ft at 2:05PM Jun 04, 2023Observed: 0.05 ft at 8:05PM Jun 04, 2023Highest Observation: 0.12 ft at 2:05AM Jun 05, 2023Observed: 0.11 ft at 8:05AM Jun 05, 2023Observed: 0 ft at 2:05PM Jun 05, 2023Observed: 0.02 ft at 8:05PM Jun 05, 2023Observed: 0.11 ft at 2:05AM Jun 06, 2023Observed: 0.09 ft at 8:05AM Jun 06, 2023Observed: 0 ft at 2:05PM Jun 06, 2023Observed: 0.01 ft at 8:05PM Jun 06, 2023Observed: 0.08 ft at 8:05AM Jun 07, 2023Observed: 0 ft at 2:05PM Jun 07, 2023Observed: 0.02 ft at 8:05PM Jun 07, 2023Observed: 0.1 ft at 2:05AM Jun 08, 2023Observed: 0.1 ft at 8:05AM Jun 08, 2023ABPV2(plotting HGIRR) Graph Created (1:26PM Jun 8, 2023)ObservedLatest observed value: 0.1 ft at 8:05 AM EDT 8-Jun-2023. Flood Stage is 9 ft
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Tabular Data (UTC)
Tabular Data (EDT)
XML Data
RSS Files
Datum: NGVD29
NOTE: Forecasts are not available for the Backlick Run at Armistead Boothe Park. Only observed stages are available for this point.
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Flood Categories (in feet)
Major Flood Stage: 0
Moderate Flood Stage: 0
Flood Stage: 9
Action Stage: 7
Low Stage (in feet): -9999

Historic Crests
Currently none available.

Recent Crests
Currently none available.

Low Water Records
Currently none available.

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Gauge LocationGauge Map Marker
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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If you notice any errors in the below information, please contact our Webmaster
(1) Gauge location and stream adjacent to Armistead Boothe Park.
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Latitude: 38.803889° N, Longitude: 77.128333° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame
Gauge Height Flood Stage Uses
NWS stage 0 ft 9 ft  
Vertical Datum Elevation
(gauge height = 0)
(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.
NWS Information
National Weather Service
(Baltimore/Washington) Sterling Weather Forecast Office
43858 Weather Service Rd.
Sterling, VA 20166
(571) 888-3500
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Page last modified: 2-Nov-2020 7:30 PM
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