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St. Johns River above Lake Harney near Geneva water level

River gauge, St. Johns River, Florida, United States

Directions

Normal for mid-October

Water level

6.83ft Steady over the last 24 hours

Flow
4,550 cfs
5 10 Highest onrecord 12.67 ft Minor floodstage 8.00 ft

History

358ftOct 16Oct 18Oct 20Oct 23Oct 25Minor flood stage358ftOct 16Oct 20Oct 25Minor flood stage
358ftSep 21Sep 29Oct 8Oct 16Oct 25Minor flood stage358ftSep 21Oct 8Oct 25Minor flood stage
-05ftOct 2025Jan 2026Apr 2026Jul 2026Oct 2026Minor flood stage-05ftOct 2025Apr 2026Oct 2026Minor flood stage
-05ftJanMarMayJulSepNov2026-05ftJanAprJulOct2026

20252026

Water level Normal range (10–90 %) Forecast Minor flood stage

The forecast expects the river to fall to 6.80 ft by Tuesday, October 20 at 02:00 PM. Issued Tuesday, October 20 at 09:20 AM by NOAA National Weather Service.

What this means

The St. Johns River above Lake Harney near Geneva is at 6.83 ft, in the normal range for mid-October.

That puts it 1.85 ft above the median of 4.98 ft for mid-October, based on 85 years of readings. It is 1.17 ft below the flood stage of 8.00 ft. A year ago it stood at 7.59 ft (−0.76 ft).

The level has held steady over the past 24 hours. The forecast expects the river to fall to 6.80 ft by Tuesday, October 20 at 02:00 PM. In the last month it has stayed between 4.69 ft and 6.84 ft.

Compared with 85 years of daily readings for this time of year. How to read levels

Key numbers

Median for this date
4.98 ft1.85 ft above the median for this date
Normal for this date
2.29 ft – 9.04 ft8 years in 10 fall in this range (85 years of records)
Same day last year
7.59 ft−0.76 ft
Lowest and highest in 30 days
4.69 ft – 6.84 ft
Lowest and highest in 12 months
0.67 ft – 8.17 ft
Highest on record
12.67 ftOctober 3, 2022
Forecast peak
6.90 ftWednesday, October 21 at 02:00 PM

Floating and fishing near St. Johns River above Lake Harney near Geneva

Normal flows mean predictable rapids and good access at most put-ins.

Flood stage here is 8.00 ft, 1.17 ft above the current reading. Beyond it, the National Weather Service also defines moderate and major flood stages.

What happens at each level

10.80 ft
Water covers State Road 46 and it may become impassable near Jungle Road and Prevatt Road. Standing water on secondary roads near the river deepens to more than three feet in some areas. Flooding becomes more significant to structures and marinas from above Lake Harney to the Lake Jesup area.
10.50 ft
Water covers many secondary roads near the river, limiting access to homes to boats or high terrain vehicles. Flooding of homes along secondary roads near the river becomes more significant. Water begins to encroach on State Road 46 near Jungle Road and Prevatt Road.
10.00 ft
Flooding of homes in low lying areas becomes more significant. Many secondary roads are impassable, limiting access to homes.
9.50 ft
Water begins to move into homes in low lying areas along the river. Flooding around the Black Hammock area near Lake Jesup.
9.30 ft
Many secondary roads are flooded near Lake Harney. Flooding in the Hatbill Road area near Loughman Lake.
9.00 ft
Water enters the first story of homes on Whitcomb Drive between Crossover Lane and Lake Harney Road. Water covers Mullet Lake Park.
8.80 ft
Water covers Whitcomb Road.
8.50 ft
Water surrounds homes on stilts on Prevatt road, entering garages on the first story. Water fills yards and ditches along Whitcomb Drive and Lake Harney Road. Roads flood in the Palm Shores and Mullet Lake areas.
8.30 ft
Docks are partially submerged along the river between Lake Harney and Lemon Bluff.
8.00 ft
Water moves into yards on Prevatt Road off State Road 46 near Lake Harney. Flooding of boat ramps and roads occurs in Mullet Lake Park.
7.50 ft
Some docks, islands and small trees along the river north of Lake Harney will be covered with water, making boating hazardous.
7.00 ft
Water approaches boat ramps, docks in Lake Jesup Park and Mullet Lake Park.
6.83 ft
Right now

Impact statements from the U.S. National Weather Service.

Highest crests on record

Chance of at least minor flooding in October to December: 21 %.

RankLevelDate
112.67 ftOctober 3, 2022
211.15 ftAugust 28, 2008
310.62 ftOctober 13, 1953
410.52 ftSeptember 19, 2017
510.15 ftOctober 15, 2024
610.10 ftOctober 1, 1924
710.08 ftOctober 2, 2004
89.50 ftSeptember 12, 2004
99.45 ftNovember 21, 1994
109.25 ftNovember 13, 2022

Weather at the gauge

No rain in the last 3 days.

20 Tue 74° 63° – Wind 11 mph
21 Wed 78° 61° – Wind 11 mph
22 Thu 80° 63° – Wind 10 mph
23 Fri 79° 64° 0.01 in Wind 13 mph
24 Sat 80° 67° 0.15 in, 48% Wind 15 mph
25 Sun 81° 73° 0.04 in Wind 15 mph
26 Mon 82° 73° – Wind 15 mph

Forecast: Open-Meteo

Sunrise 07:29 AM Sunset 06:50 PM Daylight 11 hr, 22 min Waxing gibbous 69%

Map

Other gauges on the St. Johns River

Gauge Level Compared with normal 24 hours Distance
St. Johns River near MelbourneRiver gauge, St. Johns River 6.65 ft High −0.03 ft 47 mi
St. Johns River near CocoaRiver gauge, St. Johns River 15.47 ft High ±0 26 mi
St. Johns River near ChristmasRiver gauge, St. Johns River 7.96 ft Normal ±0 13 mi
St. Johns River near SanfordRiver gauge, St. Johns River 4.07 ft Normal +0.02 ft 19 mi
St. Johns River near De LandRiver gauge, St. Johns River 3.42 ft High +0.12 ft 29 mi
St. Johns River at AstorTidal gauge, St. Johns River 3.11 ft Flooding +0.06 ft 43 mi
St. Johns River at Buffalo Bluff near SatsumaTidal gauge, St. Johns River 13.03 ft High −0.20 ft 72 mi
St. Johns River at JacksonvilleTidal gauge, St. Johns River 12.14 ft High −0.03 ft 117 mi

Nearby gauges

Gauge Level Compared with normal 24 hours Distance
Econlockhatchee River near ChuluotaRiver gauge, Econlockhatchee River 6.46 ft Normal −0.16 ft 5.4 mi
Econlockhatchee River near OviedoRiver gauge, Econlockhatchee River 15.64 ft Normal −0.19 ft 9 mi
Lt Econlockhatchee River at State Hwy434 near OviedoRiver gauge, Lt Econlockhatchee River 29.75 ft Normal −0.04 ft 12 mi
Howell Creek at State Highway 434 near OviedoRiver gauge, Howell Creek 6.74 ft Normal −0.06 ft 13 mi
Howell Creek near SlaviaRiver gauge, Howell Creek 29.20 ft Low −0.05 ft 15 mi
Gee Creek near LongwoodRiver gauge, Gee Creek 7.68 ft Normal +0.08 ft 15 mi
Soldier Creek near LongwoodRiver gauge, Soldier Creek 5.25 ft Low −0.05 ft 17 mi
Haulover Canal near MimsRiver gauge, Haulover Canal 1.52 ft Normal +0.25 ft 17 mi

Questions and answers

How does the St. Johns River above Lake Harney near Geneva compare with last year?

It is 0.76 ft lower than on the same day last year, when the reading was 7.59 ft.

What is flood stage for the St. Johns River above Lake Harney near Geneva?

The official flood stage is 8.00 ft. The level is currently 1.17 ft below it.

What is a normal level for the St. Johns River above Lake Harney near Geneva in mid-October?

The median for mid-October is 4.98 ft. In 8 years out of 10 the reading falls between 2.29 ft and 9.04 ft, based on 85 years of records.

Is gage height the same as water depth?

No. Gage height is measured from a fixed reference point chosen by the agency, so a reading of 10 ft does not mean the river is 10 ft deep.

What is the water level of St. Johns River above Lake Harney near Geneva today?

On Oct 20, 2026, 10:30 AM EDT, the water level was 6.83 ft. Steady over the last 24 hours.

Is St. Johns River above Lake Harney near Geneva rising or falling?

Steady over the last 24 hours. Up 0.25 ft over the last 7 days.

Is the level of St. Johns River above Lake Harney near Geneva normal?

Normal for mid-October. Compared with 85 years of daily readings for this time of year.

For specialists

Station codes, datum, parameters, data quality and downloads
Operator
U.S. Geological Survey
Station code
usgs:02234000 (Agency page)
Coordinates
28.71416, -81.03534 (WGS84)
Update interval
every 15 minutes
Licence
Public domain. Data: U.S. Geological Survey (USGS), provisional data subject to revision

Published series

ParameterLast valueTime (UTC)Quality
Water level 6.83 ft 2026-10-20 14:30 Provisional
Flow 4,550 cfs 2026-10-20 14:30 Provisional

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How to cite

U.S. Geological Survey: St. Johns River above Lake Harney near Geneva (usgs:02234000). Accessed October 20, 2026 via Nivelmap, https://nivelmap.com/en/united-states/florida/st-johns-river-above-lake-harney-near-geneva

How we check values

Each reading is stored as published. We hold back values that jump faster than physically plausible and show the measurement time with every value.

Readings are provisional, can be delayed or wrong and are not a flood warning. Read the disclaimer