National Weather Service Advanced Hydrologic Prediction Service

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This probabilistic forecast is issued by the Southeast River Forecast Center.

	Hydrograph			River at a Glance			Download			Probability Information Weekly Chance of Exceeding Levels Chance of Exceeding Levels During Entire Period Short-term Probabilistic Guidance (Experimental) Not Available

About this graph

Forecasts for the Dan River at South Boston are issued routinely year-round.

Vertical Datum updated from NGVD29 to NAVD88 by gauge owner.

Return to Area Map

Upstream Gauge

Zoom Level:16

Flood Categories (in feet)

Major Flood Stage:	34
Moderate Flood Stage:	29
Flood Stage:	22
Action Stage:	18
Low Stage (in feet):	-9999

Historic Crests
(1) 33.37 ft on 06/24/1972
(2) 33.22 ft on 09/08/1996
(3) 32.57 ft on 04/18/1987
(4) 31.80 ft on 08/16/1940
(5) 31.47 ft on 04/28/1978
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 22.27 ft on 03/20/2021
(2) 23.99 ft on 02/17/2021
(3) 22.25 ft on 02/15/2021
(4) 20.03 ft on 12/06/2020
(5) 23.60 ft on 12/02/2020
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
Currently none available.

	Gauge Location	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

If you notice any errors in the below information, please contact our Webmaster
32	Flooding closes intersection of Routes 501 and 58.
29.5	Route 501 begins to flood and number of businesses in the Riverdale area are affected.
29	A number of businesses in the Riverdale area are affected.
27	Water approaches route 501.
19	Flooding begins in low-lying agricultural land and woods.

Other Real-time and/or Archive Data Sources:

U.S. Geological Survey (USGS) Data and Site Info for South Boston

Collaborative Agencies

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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