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Hydrograph River at a Glance Download
Johns Creek at Route 311 IFLOWS Stage (ft)Highest Observation: 4.7 ft at 2:43AM Oct 14, 2021Observed: 4.6 ft at 8:42AM Oct 14, 2021Highest Observation: 4.7 ft at 2:43PM Oct 14, 2021Highest Observation: 4.7 ft at 2:42AM Oct 15, 2021Highest Observation: 4.7 ft at 8:42AM Oct 15, 2021Highest Observation: 4.7 ft at 2:43PM Oct 15, 2021Observed: 4.6 ft at 8:42PM Oct 15, 2021Observed: 4.6 ft at 2:42AM Oct 16, 2021Highest Observation: 4.7 ft at 8:42AM Oct 16, 2021Observed: 4.6 ft at 2:42PM Oct 16, 2021Highest Observation: 4.7 ft at 8:43PM Oct 16, 2021Highest Observation: 4.7 ft at 2:42AM Oct 17, 2021Highest Observation: 4.7 ft at 8:43AM Oct 17, 2021Highest Observation: 4.7 ft at 2:42PM Oct 17, 2021Observed: 4.6 ft at 8:42PM Oct 17, 2021Highest Observation: 4.7 ft at 2:42AM Oct 18, 2021Highest Observation: 4.7 ft at 8:42AM Oct 18, 2021Observed: 4.4 ft at 9:48AM Oct 18, 2021Highest Observation: 4.7 ft at 11:39AM Oct 18, 2021Highest Observation: 4.7 ft at 2:43PM Oct 18, 2021Highest Observation: 4.7 ft at 8:43PM Oct 18, 2021Highest Observation: 4.7 ft at 2:43AM Oct 19, 2021Observed: 4.6 ft at 8:43AM Oct 19, 2021Highest Observation: 4.7 ft at 2:43PM Oct 19, 2021Observed: 4.6 ft at 8:43PM Oct 19, 2021Observed: 4.6 ft at 2:42AM Oct 20, 2021Observed: 4.6 ft at 8:43AM Oct 20, 2021Highest Observation: 4.7 ft at 2:43PM Oct 20, 2021Observed: 4.6 ft at 8:43PM Oct 20, 2021VA Department of Emergency ManagementJCIV2(plotting HGIRR) Graph Created (11:19PM Oct 20, 2021)ObservedLatest observed value: 4.6 ft at 8:43 PM EDT 20-Oct-2021. Flood Stage is 12.5 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 Johns Creek at Route 311 IFLOWS. Only observed stages are available for this point.
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Upstream Gauge - at Upper Johns Creek Upstream Gauge Downstream Gauge Downstream Gauge - at New Castle
Flood Categories (in feet)
Major Flood Stage: 0
Moderate Flood Stage: 0
Flood Stage: 12.5
Action Stage: 11
Low Stage (in feet): 0

Historic Crests
(1) 12.80 ft on 10/12/2018
(2) 12.40 ft on 04/13/2020
(3) 11.90 ft on 02/07/2020
(4) 11.50 ft on 01/25/2010
(5) 10.70 ft on 09/28/2018
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 12.40 ft on 04/13/2020
(2) 11.90 ft on 02/07/2020
(3) 12.80 ft on 10/12/2018
(4) 10.70 ft on 09/28/2018
(5) 8.80 ft on 04/25/2017
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.

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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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Latitude: 37.507222° N, Longitude: 80.183333° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame
Gauge Height Flood Stage Uses
NWS stage 0 ft 12.5 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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NWS Information
National Weather Service
Blacksburg Weather Forecast Office
1750 Forecast Drive
Blacksburg, VA 24060
(540) 552-0084
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Page last modified: 2-Nov-2020 7:30 PM
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