Major Flood
3 ft
Current Water Level
Gage Height
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Streamflow
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Last Reading
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This is an NWS forecast point (LID: SJWF1). Live data may be limited. View on NWS AHPS →
FLOOD STAGES
Know the flood categories.
Flood stages defined by the National Weather Service. Gage height data from USGS Water Resources.
Moderate Flood
2 ft
Minor Flood
1.5 ft
Action Stage
1 ft
Low-Water Impacts
5 ft
Stage needed to inundate designated Gulf Sturgeon critical habitat below Jim Woodruff Lock and Dam.
3 ft
Temporary (not sustainable) operating level for of Scholz Power Plant
What happens as water levels drop, per the National Weather Service.
7-Day Water Level Chart
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About This Gauge
NWS LID
SJWF1
River
St Johns River
County
Putnam, FL
Coordinates
29.4792°N, 81.6756°W
Get Flood Alerts for St Johns River
StormCast monitors this gauge and sends a push notification to your phone when the water level crosses into a new flood category — even at 3 AM.
Frequently Asked Questions
What is the current water level of St Johns River at Welaka (in MHHW)?
The St Johns River at Welaka (in MHHW) gauge is maintained by USGS and reports water levels every 15 minutes. Visit this page to see the latest reading updated live, or download StormCast to get push alerts when levels rise.
What is flood stage for St Johns River at Welaka (in MHHW)?
The NWS-defined flood stage for St Johns River at Welaka (in MHHW) is 1.5 feet. Action stage begins at 1 feet. Moderate flooding starts at 2 feet, and major flooding at 3 feet.
How do I get alerts when St Johns River rises?
Download StormCast free on Google Play, go to River Gauges, and add St Johns River at Welaka (in MHHW) to your watchlist. StormCast will send a push notification to your phone whenever the water level crosses into a new NWS flood category.
Where is the St Johns River at Welaka (in MHHW) gauge located?
The gauge is located in Putnam County, Florida at coordinates 29.4792°N, 81.6756°W. Data is provided by the U.S. Geological Survey and the National Weather Service.
More Gauges on St Johns River
More Resources
Source & Notes
Data provided by: Courtesy of FDEP
- Water levels are referenced to the Mean Higher High Water (MHHW) Datum. This datum can be used to approximate sea water inundation of normally dry ground near the coast. For specific impacts, please refer to the statements on this page.