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
Roanoke River at Roa Sewer Plant Stage (ft)Observed: 4.9 ft at 6:46PM Jul 20, 2021Observed: 5.3 ft at 8:07PM Jul 20, 2021Observed: 5.2 ft at 9:41PM Jul 20, 2021Observed: 4.9 ft at 1:40AM Jul 21, 2021Observed: 4.3 ft at 9:16AM Jul 21, 2021Observed: 4.3 ft at 9:41AM Jul 21, 2021Observed: 4.6 ft at 1:04PM Jul 21, 2021Observed: 4.7 ft at 3:41PM Jul 21, 2021Observed: 5.3 ft at 8:22PM Jul 21, 2021Observed: 5.3 ft at 9:41PM Jul 21, 2021Observed: 5 ft at 3:41AM Jul 22, 2021Observed: 4.7 ft at 7:58AM Jul 22, 2021Observed: 4.4 ft at 9:01AM Jul 22, 2021Observed: 4.4 ft at 9:41AM Jul 22, 2021Observed: 4.7 ft at 11:22AM Jul 22, 2021Observed: 5.3 ft at 8:46PM Jul 22, 2021Highest Observation: 5.4 ft at 9:41PM Jul 22, 2021Observed: 4.9 ft at 3:41AM Jul 23, 2021Observed: 4.6 ft at 8:16AM Jul 23, 2021Observed: 4.3 ft at 9:22AM Jul 23, 2021Observed: 4.3 ft at 9:41AM Jul 23, 2021Observed: 4.6 ft at 11:16AM Jul 23, 2021Observed: 4.6 ft at 3:41PM Jul 23, 2021Observed: 4.9 ft at 6:01PM Jul 23, 2021Highest Observation: 5.4 ft at 9:41PM Jul 23, 2021Observed: 5.1 ft at 12:10AM Jul 24, 2021Observed: 4.9 ft at 3:42AM Jul 24, 2021Observed: 4.6 ft at 8:07AM Jul 24, 2021Observed: 4.4 ft at 9:41AM Jul 24, 2021Observed: 4.7 ft at 1:58PM Jul 24, 2021Observed: 4.9 ft at 3:41PM Jul 24, 2021Observed: 5.2 ft at 6:49PM Jul 24, 2021Observed: 4.6 ft at 8:40AM Jul 25, 2021Observed: 4.3 ft at 9:31AM Jul 25, 2021Observed: 4.6 ft at 12:19PM Jul 25, 2021Observed: 4.5 ft at 3:42PM Jul 25, 2021Observed: 4.8 ft at 4:28PM Jul 25, 2021Observed: 5.1 ft at 6:08PM Jul 25, 2021Observed: 5.1 ft at 9:41PM Jul 25, 2021Observed: 5 ft at 3:40AM Jul 26, 2021Observed: 4.6 ft at 8:07AM Jul 26, 2021Observed: 4.3 ft at 9:10AM Jul 26, 2021Observed: 4.3 ft at 9:40AM Jul 26, 2021Observed: 4.6 ft at 1:04PM Jul 26, 2021Observed: 5 ft at 1:16PM Jul 26, 2021Highest Observation: 5.4 ft at 1:31PM Jul 26, 2021Observed: 5.1 ft at 2:49PM Jul 26, 2021Observed: 4.9 ft at 3:40PM Jul 26, 2021Observed: 4.6 ft at 4:04PM Jul 26, 2021Observed: 4.9 ft at 5:13PM Jul 26, 2021Observed: 5.2 ft at 7:18PM Jul 26, 2021Observed: 4.6 ft at 8:04AM Jul 27, 2021RSTV2(plotting HGIRR) Graph Created (10:49AM Jul 27, 2021)ObservedLatest observed value: 4.6 ft at 8:04 AM EDT 27-Jul-2021. Flood Stage is 13.5 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 Roanoke River at Roa Sewer Plant. Only observed stages are available for this point.
Return to Area Map
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
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
11 THE RIVER RECEDES WITHIN ITS BANKS IN THE VICINITY OF THE GAGE.
About This Location Collapse

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  
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
Blacksburg Weather Forecast Office
1750 Forecast Drive
Blacksburg, VA 24060
(540) 552-0084
Ask Questions/Webmaster
Page last modified: 2-Nov-2020 7:30 PM
Disclaimer
Credits
Glossary
Privacy Policy
About Us
Career Opportunities