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Over 200 USGS real-time streamgages used to support NWS river forecasts and warnings are at risk of being discontinued. Click here for more information from the USGS...
Weather Forecast Office Tallahassee, FL Southeast River Forecast Center
Hydrograph River at a Glance Download Weekly Chance of
Exceeding Levels		 Chance of Exceeding Levels
During Entire Period
St. Marks River near Newport on Old Magnolia Rd Stage (ft)Flow (kcfs)Observed: 6.42 ft at 11:00PM Jun 13, 2013Observed: 6.42 ft at 12:00AM Jun 14, 2013Observed: 6.42 ft at 1:00AM Jun 14, 2013Observed: 6.42 ft at 2:00AM Jun 14, 2013Observed: 6.42 ft at 3:00AM Jun 14, 2013Observed: 6.42 ft at 4:00AM Jun 14, 2013Observed: 6.42 ft at 5:00AM Jun 14, 2013Observed: 6.43 ft at 6:00AM Jun 14, 2013Observed: 6.43 ft at 7:00AM Jun 14, 2013Observed: 6.43 ft at 8:00AM Jun 14, 2013Observed: 6.43 ft at 9:00AM Jun 14, 2013Observed: 6.43 ft at 10:00AM Jun 14, 2013Observed: 6.43 ft at 11:00AM Jun 14, 2013Observed: 6.43 ft at 12:00PM Jun 14, 2013Observed: 6.43 ft at 1:00PM Jun 14, 2013Observed: 6.43 ft at 2:00PM Jun 14, 2013Observed: 6.43 ft at 3:00PM Jun 14, 2013Observed: 6.42 ft at 4:00PM Jun 14, 2013Observed: 6.42 ft at 5:00PM Jun 14, 2013Observed: 6.42 ft at 6:00PM Jun 14, 2013Observed: 6.42 ft at 7:00PM Jun 14, 2013Observed: 6.42 ft at 8:00PM Jun 14, 2013Observed: 6.42 ft at 9:00PM Jun 14, 2013Observed: 6.42 ft at 10:00PM Jun 14, 2013Observed: 6.42 ft at 11:00PM Jun 14, 2013Observed: 6.43 ft at 12:00AM Jun 15, 2013Observed: 6.43 ft at 1:00AM Jun 15, 2013Observed: 6.43 ft at 2:00AM Jun 15, 2013Observed: 6.42 ft at 3:00AM Jun 15, 2013Observed: 6.42 ft at 4:00AM Jun 15, 2013Observed: 6.42 ft at 5:00AM Jun 15, 2013Observed: 6.42 ft at 6:00AM Jun 15, 2013Observed: 6.42 ft at 7:00AM Jun 15, 2013Observed: 6.42 ft at 8:00AM Jun 15, 2013Observed: 6.42 ft at 9:00AM Jun 15, 2013Observed: 6.42 ft at 10:00AM Jun 15, 2013Observed: 6.42 ft at 11:00AM Jun 15, 2013Observed: 6.42 ft at 12:00PM Jun 15, 2013Observed: 6.42 ft at 1:00PM Jun 15, 2013Observed: 6.42 ft at 2:00PM Jun 15, 2013Observed: 6.41 ft at 3:00PM Jun 15, 2013Observed: 6.41 ft at 4:00PM Jun 15, 2013Observed: 6.4 ft at 5:00PM Jun 15, 2013Observed: 6.4 ft at 6:00PM Jun 15, 2013Observed: 6.4 ft at 7:00PM Jun 15, 2013Observed: 6.4 ft at 8:00PM Jun 15, 2013Observed: 6.4 ft at 9:00PM Jun 15, 2013Observed: 6.4 ft at 10:00PM Jun 15, 2013Observed: 6.4 ft at 11:00PM Jun 15, 2013Observed: 6.4 ft at 12:00AM Jun 16, 2013Observed: 6.4 ft at 1:00AM Jun 16, 2013Observed: 6.4 ft at 2:00AM Jun 16, 2013Observed: 6.4 ft at 3:00AM Jun 16, 2013Observed: 6.4 ft at 4:00AM Jun 16, 2013Observed: 6.4 ft at 5:00AM Jun 16, 2013Observed: 6.4 ft at 6:00AM Jun 16, 2013Observed: 6.4 ft at 7:00AM Jun 16, 2013Observed: 6.4 ft at 8:00AM Jun 16, 2013Observed: 6.4 ft at 9:00AM Jun 16, 2013Observed: 6.4 ft at 10:00AM Jun 16, 2013Observed: 6.41 ft at 11:00AM Jun 16, 2013Observed: 6.41 ft at 12:00PM Jun 16, 2013Observed: 6.41 ft at 1:00PM Jun 16, 2013Observed: 6.41 ft at 2:00PM Jun 16, 2013Observed: 6.41 ft at 3:00PM Jun 16, 2013Observed: 6.4 ft at 4:00PM Jun 16, 2013Observed: 6.4 ft at 5:00PM Jun 16, 2013Observed: 6.4 ft at 6:00PM Jun 16, 2013Observed: 6.4 ft at 7:00PM Jun 16, 2013Observed: 6.4 ft at 8:00PM Jun 16, 2013Observed: 6.4 ft at 9:00PM Jun 16, 2013Observed: 6.4 ft at 10:00PM Jun 16, 2013Observed: 6.4 ft at 11:00PM Jun 16, 2013Observed: 6.4 ft at 12:00AM Jun 17, 2013Observed: 6.4 ft at 1:00AM Jun 17, 2013Observed: 6.4 ft at 2:00AM Jun 17, 2013Observed: 6.4 ft at 3:00AM Jun 17, 2013Observed: 6.4 ft at 4:00AM Jun 17, 2013Observed: 6.4 ft at 5:00AM Jun 17, 2013Observed: 6.4 ft at 6:00AM Jun 17, 2013Observed: 6.4 ft at 7:00AM Jun 17, 2013Observed: 6.4 ft at 8:00AM Jun 17, 2013Observed: 6.4 ft at 9:00AM Jun 17, 2013Observed: 6.4 ft at 10:00AM Jun 17, 2013Observed: 6.4 ft at 11:00AM Jun 17, 2013Observed: 6.4 ft at 12:00PM Jun 17, 2013Observed: 6.4 ft at 1:00PM Jun 17, 2013Observed: 6.4 ft at 2:00PM Jun 17, 2013Observed: 6.4 ft at 3:00PM Jun 17, 2013Observed: 6.39 ft at 4:00PM Jun 17, 2013Observed: 6.39 ft at 5:00PM Jun 17, 2013Observed: 6.39 ft at 6:00PM Jun 17, 2013Observed: 6.39 ft at 7:00PM Jun 17, 2013Observed: 6.39 ft at 8:00PM Jun 17, 2013Observed: 6.39 ft at 9:00PM Jun 17, 2013Observed: 6.39 ft at 10:00PM Jun 17, 2013Observed: 6.39 ft at 11:00PM Jun 17, 2013Observed: 6.39 ft at 12:00AM Jun 18, 2013Observed: 6.39 ft at 1:00AM Jun 18, 2013Observed: 6.39 ft at 2:00AM Jun 18, 2013Observed: 6.39 ft at 3:00AM Jun 18, 2013Observed: 6.4 ft at 4:00AM Jun 18, 2013Observed: 6.39 ft at 5:00AM Jun 18, 2013Observed: 6.4 ft at 6:00AM Jun 18, 2013Observed: 6.4 ft at 7:00AM Jun 18, 2013Observed: 6.39 ft at 8:00AM Jun 18, 2013Observed: 6.4 ft at 9:00AM Jun 18, 2013Observed: 6.4 ft at 10:00AM Jun 18, 2013Observed: 6.39 ft at 11:00AM Jun 18, 2013Observed: 6.4 ft at 12:00PM Jun 18, 2013Observed: 6.39 ft at 1:00PM Jun 18, 2013Observed: 6.4 ft at 2:00PM Jun 18, 2013Observed: 6.47 ft at 3:00PM Jun 18, 2013Observed: 6.47 ft at 4:00PM Jun 18, 2013Observed: 6.45 ft at 5:00PM Jun 18, 2013Observed: 6.44 ft at 6:00PM Jun 18, 2013Observed: 6.43 ft at 7:00PM Jun 18, 2013Highest Observation: 6.55 ft at 8:00PM Jun 18, 2013Observed: 6.4 ft at 9:00PM Jun 18, 2013USGS--Water Resources of the United StatesNEPF1(plotting HGIRG) Graph Created (10:25PM Jun 18, 2013)ObservedLatest observed value: 6.4 ft at 9:00 PM EDT 18-Jun-2013. Flood Stage is 8 ft
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About this graph
Tabular Data
XML Data
RSS Files
Datum: Not Available
Metadata
Reliability of the Forecast: Based on unobstructed flow

NOTE: Forecasts for the St. Marks River near Newport on Old Magnolia Rd are issued as needed during times of high water, but are not routinely available.

Return to Area Map
Flood Categories (in feet)
Major Flood Stage:11
Moderate Flood Stage:9
Flood Stage:8
Action Stage:7

Historical Crests
(1) 13.88 ft on 08/25/2008
(2) 11.81 ft on 04/07/1973
(3) 11.18 ft on 03/05/1991
(4) 10.26 ft on 04/10/1984
(5) 10.01 ft on 09/18/1957
Show More Historical Crests

Low Water Records
(1) 4.20 ft on 03/17/1957
Legend
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 Collapse
11 Major flooding will occur in the area.
9 Natural Bridge Road will flood.
8 MINOR LOWLAND FLOODING BEGINS.
Photos
(1) St. Marks River Panoramic at Newport Gage
(2) St. Marks River near Newport - KML
About This Location Collapse

Latitude: 30.271111° N, Longitude: 84.148333° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame		 Gauge Height Flood Stage Uses
NWS stage 0 ft 8 ft Interpreting hydrographs and NWS watch, warnings, and forecasts, and inundation maps
Vertical Datum Elevation
(gauge height = 0)		 Elevation
(gauge height = flood stage)		 Elevation information source
NAVD88 Not Available Not Available Survey grade GPS equipment, FEMA flood plain maps, newer USGS topographic maps
NGVD 29 3.53 ft 10.53 ft Older USGS topographic maps, NGVD29 benchmarks
MSL Not Available Not Available Older USGS topographic maps, MSL benchmarks
Other Not Available Not Available  

Other Data Sources:
Additional Information Collapse
Note 1: New Ensemble Streamflow Prediction(ESP) forecasts are now available for this forecast point on this webpage. ESP forecasts extended probabilities of stage and flow based on current river levels and long range climate forecasts.
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
Tallahassee Weather Forecast Office
Love Building FL State University
Tallahassee, FL 32306-4509
(850) 942-8833
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Page last modified: 13-Mar-2013 6:34 PM 		Disclaimer
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