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Hydrograph River at a Glance Download
North Fork Roanoke River at Ironto Stage (ft)Flow (kcfs)Observed: 0.5 ft at 12:32PM Jul 15, 2019Observed: 2.1 ft at 7:50PM Jul 15, 2019Observed: 2.4 ft at 8:02PM Jul 15, 2019Observed: 2.9 ft at 8:11PM Jul 15, 2019Observed: 3.2 ft at 8:18PM Jul 15, 2019Highest Observation: 3.9 ft at 8:41PM Jul 15, 2019Observed: 3.6 ft at 9:23PM Jul 15, 2019Observed: 3.1 ft at 9:46PM Jul 15, 2019Observed: 2.6 ft at 10:04PM Jul 15, 2019Observed: 2 ft at 11:04PM Jul 15, 2019Observed: 1.5 ft at 12:32AM Jul 16, 2019Observed: 2 ft at 1:25AM Jul 16, 2019Observed: 2.5 ft at 1:31AM Jul 16, 2019Observed: 3.2 ft at 1:49AM Jul 16, 2019Observed: 3.6 ft at 2:13AM Jul 16, 2019Highest Observation: 3.9 ft at 3:22AM Jul 16, 2019Observed: 3.5 ft at 4:04AM Jul 16, 2019Observed: 3.2 ft at 4:22AM Jul 16, 2019Observed: 3.2 ft at 4:26AM Jul 16, 2019Observed: 2.3 ft at 5:26AM Jul 16, 2019Observed: 1.9 ft at 6:19AM Jul 16, 2019Observed: 0.9 ft at 6:32PM Jul 16, 2019Observed: 0.8 ft at 12:32AM Jul 17, 2019Observed: 0.8 ft at 6:32AM Jul 17, 2019Observed: 0.7 ft at 12:32PM Jul 17, 2019Observed: 0.7 ft at 12:32AM Jul 18, 2019Observed: 0.7 ft at 6:31AM Jul 18, 2019Observed: 0.6 ft at 12:32PM Jul 18, 2019Observed: 0.6 ft at 6:32PM Jul 18, 2019Observed: 0.7 ft at 12:31AM Jul 19, 2019Observed: 0.8 ft at 6:32AM Jul 19, 2019Observed: 0.7 ft at 12:32PM Jul 19, 2019Observed: 0.6 ft at 6:32PM Jul 19, 2019Observed: 0.6 ft at 6:31AM Jul 20, 2019Observed: 0.6 ft at 6:32PM Jul 20, 2019Observed: 0.6 ft at 6:32AM Jul 21, 2019Observed: 0.5 ft at 12:32PM Jul 21, 2019Observed: 1.1 ft at 3:37PM Jul 21, 2019Observed: 1.2 ft at 3:46PM Jul 21, 2019Observed: 1.5 ft at 3:55PM Jul 21, 2019Observed: 1.5 ft at 5:31PM Jul 21, 2019Observed: 1 ft at 9:04PM Jul 21, 2019Observed: 1.4 ft at 11:10PM Jul 21, 2019Observed: 1.3 ft at 12:32AM Jul 22, 2019Observed: 1 ft at 6:07AM Jul 22, 2019VA Department of Emergency ManagementIROV2(plotting HGIRR) Graph Created (7:49AM Jul 22, 2019)ObservedLatest observed value: 1 ft at 6:07 AM EDT 22-Jul-2019. Flood Stage is 9 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 North Fork Roanoke River at Ironto. Only observed stages are available for this point.
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Flood Categories (in feet)
Major Flood Stage: 13
Moderate Flood Stage: 11
Flood Stage: 9
Action Stage: 7
Low Stage (in feet): 0

Historic Crests
(1) 12.70 ft on 02/22/2003
(2) 11.10 ft on 10/11/2018
(3) 10.90 ft on 01/31/2013
(4) 10.70 ft on 06/27/2006
(5) 10.10 ft on 09/29/2015
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 11.10 ft on 10/11/2018
(2) 7.50 ft on 01/23/2017
(3) 6.60 ft on 02/03/2016
(4) 6.70 ft on 11/19/2015
(5) 10.10 ft on 09/29/2015
Show More Recent Crests

(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 WATER UP TO 2 FEET DEEP FLOODS NORTH FORK ROAD NORTH OF GAGE.
9 WATER BEGINS TO AFFECT NORTH FORK ROAD UPSTREAM FROM GAGE.
About This Location Collapse

Latitude: 37.236111° N, Longitude: 80.238611° 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)
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
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Blacksburg Weather Forecast Office
1750 Forecast Drive
Blacksburg, VA 24060
(540) 552-0084
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Page last modified: 1-Mar-2019 12:35 AM
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