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Hydrograph River at a Glance Download
Roanoke River at Roa Sewer Plant Stage (ft)Observed: 4.7 ft at 4:02AM May 15, 2022Observed: 4.4 ft at 8:10AM May 15, 2022Observed: 4.1 ft at 10:02AM May 15, 2022Observed: 4.5 ft at 1:25PM May 15, 2022Observed: 4.8 ft at 3:46PM May 15, 2022Observed: 4.6 ft at 4:02PM May 15, 2022Observed: 4.9 ft at 5:28PM May 15, 2022Observed: 4.8 ft at 10:02PM May 15, 2022Observed: 4.6 ft at 4:01AM May 16, 2022Observed: 4.3 ft at 9:04AM May 16, 2022Observed: 4 ft at 9:37AM May 16, 2022Observed: 4 ft at 10:01AM May 16, 2022Observed: 4.3 ft at 10:37AM May 16, 2022Observed: 4.6 ft at 11:13AM May 16, 2022Observed: 4.3 ft at 12:46PM May 16, 2022Observed: 4.6 ft at 2:34PM May 16, 2022Observed: 4.3 ft at 4:01PM May 16, 2022Observed: 4.7 ft at 5:40PM May 16, 2022Observed: 5 ft at 7:13PM May 16, 2022Observed: 4.8 ft at 1:58AM May 17, 2022Observed: 4.8 ft at 4:01AM May 17, 2022Observed: 4.5 ft at 7:49AM May 17, 2022Observed: 4.1 ft at 8:17AM May 17, 2022Observed: 4 ft at 10:01AM May 17, 2022Observed: 4.3 ft at 11:40AM May 17, 2022Observed: 4.3 ft at 4:01PM May 17, 2022Observed: 4.7 ft at 5:16PM May 17, 2022Observed: 5 ft at 7:25PM May 17, 2022Observed: 5.1 ft at 10:01PM May 17, 2022Observed: 4.8 ft at 2:07AM May 18, 2022Observed: 4.8 ft at 4:01AM May 18, 2022Observed: 4.4 ft at 7:49AM May 18, 2022Observed: 4.1 ft at 8:37AM May 18, 2022Observed: 4.1 ft at 10:01AM May 18, 2022Observed: 4.4 ft at 12:10PM May 18, 2022Observed: 4.6 ft at 4:01PM May 18, 2022Observed: 4.9 ft at 7:31PM May 18, 2022Observed: 4.7 ft at 4:01AM May 19, 2022Observed: 4.3 ft at 9:47AM May 19, 2022Observed: 4.6 ft at 5:34PM May 19, 2022Observed: 4.9 ft at 6:49PM May 19, 2022Highest Observation: 5.2 ft at 7:58PM May 19, 2022Observed: 4.7 ft at 4:01AM May 20, 2022Observed: 4.4 ft at 8:04AM May 20, 2022Observed: 4.3 ft at 10:01AM May 20, 2022Observed: 4.6 ft at 5:28PM May 20, 2022Observed: 4.9 ft at 6:58PM May 20, 2022Highest Observation: 5.2 ft at 8:40PM May 20, 2022Observed: 4.8 ft at 4:01AM May 21, 2022Observed: 4.1 ft at 8:28AM May 21, 2022Observed: 4.3 ft at 11:55AM May 21, 2022Observed: 4.7 ft at 2:49PM May 21, 2022Observed: 5 ft at 4:37PM May 21, 2022Observed: 4.9 ft at 10:01PM May 21, 2022RSTV2(plotting HGIRR) Graph Created (3:50AM May 22, 2022)ObservedLatest observed value: 4.9 ft at 10:01 PM EDT 21-May-2022. Flood Stage is 13.5 ft
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Tabular Data (UTC)
Tabular Data (EDT)
XML Data
RSS Files
Datum: Not Available
Metadata
NOTE: Forecasts are not available for the Roanoke River at Roa Sewer Plant. Only observed stages are available for this point.
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Flood Categories (in feet)
Major Flood Stage: 21
Moderate Flood Stage: 16
Flood Stage: 13.5
Action Stage: 11
Low Stage (in feet): 0

Historic Crests
(1) 19.30 ft on 07/04/2013
(2) 18.30 ft on 09/30/2015
(3) 17.60 ft on 11/12/2020
(4) 17.20 ft on 06/27/2006
(5) 15.80 ft on 06/17/2020
(6) 13.10 ft on 10/12/2018
(7) 12.50 ft on 02/07/2020

(P): Preliminary values subject to further review.

Recent Crests
(1) 17.60 ft on 11/12/2020
(2) 15.80 ft on 06/17/2020
(3) 12.50 ft on 02/07/2020
(4) 13.10 ft on 10/12/2018
(5) 18.30 ft on 09/30/2015
(6) 19.30 ft on 07/04/2013
(7) 17.20 ft on 06/27/2006

(P): Preliminary values subject to further review.

Low Water Records
Currently none available.

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

Zoom Level:16
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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.
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11 THE RIVER RECEDES WITHIN ITS BANKS IN THE VICINITY OF THE GAGE.
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Latitude: 37.266944° N, Longitude: 79.910833° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame
Gauge Height Flood Stage Uses
NWS stage 0 ft 13.5 ft  
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.
NWS Information
National Weather Service
Blacksburg Weather Forecast Office
1750 Forecast Drive
Blacksburg, VA 24060
(540) 553-8900
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Page last modified: 2-Nov-2020 7:30 PM
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