St. Marks River near Newport on Old Magnolia Rd (in stage datum), FL
River level and flood forecast · Wakulla County
Near flood stage7.4 ftas of Mon 4 PM
The river is 0.6 ft below flood stage (8 ft).
Forecast to fall to 6.9 ft by Sat, Oct 17, 8 AM.
Flow: 1,090 cubic feet per second (USGS).
The last 7 days and the forecast
NWS forecast issued Mon, Oct 12, 10:33 AM. Forecasts change as rain falls and as upstream water arrives.
Flood stages
| Major flood stage | 11 ft |
| Moderate flood stage | 9 ft |
| Flood stage | 8 ft |
| Action stage | 7 ft |
| Record crest (August 25, 2008) | 13.88 ft |
What floods at each level
From the National Weather Service, highest first.
- 14 ftExtensive flooding of the area occurs with water entering several elevated structures on Old Magnolia Road in Wakulla County.
- 13.5 ftIn Leon County, water reaches the base of the road bridge on Natural Bridge Road.
- 13 ftWater begins to flood some elevated structures along the St Marks River along Old Magnolia Road in Wakulla County.
- 11.5 ftNatural Bridge Road is impassable above this level in Leon County.
- 11 ftWater begins to flood Old Magnolia Road in several spots restricting access into the area in Wakulla County.
- 10.25 ftNatural Bridge Road begins to flood west of the road bridge in Leon County.
- 10 ftFlooding increases around homes on the east side of Old Magnolia Road in Wakulla County. Access to some of these homes may be restricted above this level.
- 9 ftSeveral structures on Old Magnolia Road are surrounded by water up to 1 foot deep in Wakulla County.
- 8.5 ftWater approaches the steps to an elevated residence on Old Magnolia Road in Wakulla County. Other elevated structures begin to be surrounded by water. Portions of the Natural Bridge State Park near the river begin to flood in Leon County.
- 8 ftWater begins to flood yards of some residences of homes near Old Magnolia Road in Wakulla County.
- 7 ftWater begins to flood docks on the St Marks River behind houses on Old Magnolia Road in Wakulla County.
Highest crests on record
- 13.88 ft — August 25, 2008
- 11.81 ft — April 7, 1973
- 11.18 ft — March 5, 1991
- 10.26 ft — April 10, 1984
- 10.01 ft — September 18, 1957
Recent crests: 8.23 ft (January 5, 2021) · 8.15 ft (September 19, 2020) · 8.61 ft (December 14, 2018) · 7.97 ft (December 5, 2018) · 8.1 ft (June 7, 2017)
Up and down the river, and nearby
- Wakulla River near Wakulla Springs State Park, FL
- Wakulla River at Wakulla Springs State Park, FL
- Aucilla River near Nutall Rise, FL
- Lost Creek (FL) at Arran, FL
- Tide Station near Spring Creek Boat Ramp, FL
- Econfina River at Econfina State Park, FL
- Econfina River near Perry (CR 655), FL
- Aucilla River at Lamont (US 27), FL
Not an official source. River levels, forecasts, flood stages and impacts are from the National Weather Service (NEPF1); flow from the U.S. Geological Survey. Readings are provisional. In a flood, follow your local officials and the NWS at weather.gov.