River stage
Last reported 2026-10-13 | NWS MYPF1
In brief
The St. Johns River at Mayport, FL read -2.02 ft on Oct 13, 2026, 3.32 ft below action stage.
Source: National Weather Service gauge MYPF1
| Rank | Crest | Date |
|---|---|---|
| 1 | 6.50 ft | 1898-10-02 |
| 2 | 3.41 ft | 2022-11-10 |
| 3 | 3.21 ft | 2016-10-07 |
| 4 | 2.88 ft | 1944-10-19 |
| 5 | 2.79 ft | 2017-09-11 |
| 6 | 2.66 ft | 2017-09-11 |
| 7 | 2.50 ft | 2021-11-07 |
| 8 | 2.48 ft | 2022-09-29 |
Flood crests recorded at this gauge by the National Weather Service.
Action Stage - 1.3 feet above MHHW - Coastal Flood Advisory is possible if significant wind and wave action drives water levels higher along the immediate coast. Should water levels continue rising...preparations to protect property should begin.
Minor Flooding - 1.8 feet above MHHW - Coastal Flood Advisory is likely and Coastal Flood Warning Possible if significant wind and wave action drives water levels higher along the immediate coast. Flooding of low lying roads and campgrounds possible. Water levels may surge up the dune lines and into beach access areas. Some boat ramps and docks near the St. Johns River entrance and other inland waterways may begin to flood. Significant past events: Tropical Storm Fay...Hurricane Jeanne and 11/23/1984.
Moderate Flooding - 2.3 feet above MHHW - Significant Coastal Flooding begins and Coastal Flood Warning needed. Some flooding of structures and roads along the coast, St Johns River and other inland waterways is expected. Evacuation of people or property to higher ground is possible and the advice of Emergency Management or local officials should be heeded. Significant past events: Hurricane Dora 1964.
Major Flooding - 3.3 feet above MHHW - Major Coastal Flooding. Coastal Flood Warning needed. Extensive inundation of structures and roads in the area is expected. Evacuations of people or transfer of property to higher ground is likely and the advice of Emergency Management should be heeded. Extensive beach erosion is possible and possible breaches of the dune line...especially in lower areas and beach access areas. Significant past events: 2 October 1898 Hurricane.
Written by the local National Weather Service forecast office for this exact gauge.
No. The St. Johns River at Mayport is at -2.02 ft, 3.32 ft below action stage.
The National Weather Service sets action stage 1.3 ft, minor flooding 1.8 ft, moderate flooding 2.3 ft and major flooding 3.3 ft.
The highest crest on record is 6.5 ft, on 1898-10-02.
Stage and flood information from the NOAA National Weather Service (gauge MYPF1). Last reading 2026-10-13. For flood safety decisions always follow official National Weather Service warnings.