Green River below Fontenelle Reservoir water level

Name: Green River below Fontenelle Reservoir water level (U.S. Geological Survey)
Creator: U.S. Geological Survey
License: https://www.usgs.gov/information-policies-and-instructions/copyrights-and-credits

River gauge, Green River, Wyoming, United States

Directions

Below flood stage

Water level

11.11ft Steady over the last 24 hours

Measured Oct 20, 2026, 05:00 PM MDT (54 min ago)

Flow: 605 cfs
Water temperature: 56 °F

History

7 days

Water level Forecast Minor flood stage

The forecast expects the river to rise to 11.34 ft by Thursday, October 22 at 12:00 PM. Issued Tuesday, October 20 at 09:03 AM by NOAA National Weather Service.

What this means

Water levels are unremarkable at Green River below Fontenelle Reservoir, where the gauge shows 11.11 ft.

It is 5.39 ft below the flood stage of 16.50 ft.

It has barely moved over the past 24 hours. The forecast expects the river to rise to 11.34 ft by Thursday, October 22 at 12:00 PM. The 30-day range is 11.09 ft – 11.13 ft.

The water temperature at the gauge is 56 °F.

Judged against the official flood stage for this gauge. How to read levels

Key numbers

Highest on record: 18.74 ftSeptember 5, 1965
Forecast peak: 11.34 ftThursday, October 22 at 12:00 PM

Paddling and fishing conditions

Most paddlers and anglers will find the river in good shape at this stage.

For reference, flood stage is 16.50 ft.

What happens at each level

18.73 ft: Record stage and flow---19,400 cfs (9/5/1965).
17.50 ft: Access to Weeping Rock Campground is very limited due to high water. One half of Slate Creek Campground may be under water. High water may obstruct passage of bridge on west end of Lincoln County Road 311. High water may also restrict safe passage to water pumping staion on sw side of bridge.
16.50 ft: Flood stage. River begins to overflow into Weeping Rock Campground (immediately below dam) and into Slate Creek Campground (3-3.5 mile downstream). USBR personnel will evacuate campgrounds in event of a flood emergency.
15.50 ft: Bankfull stage.
11.11 ft: Right now

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

Highest crests on record

Rank	Level	Date
1	18.74 ft	September 5, 1965
2	17.79 ft	June 14, 1972
3	17.74 ft	July 3, 1982
4	17.69 ft	June 19, 1986
5	17.24 ft	May 4, 1985
6	17.08 ft	July 6, 1983
7	16.92 ft	June 16, 1997
8	16.63 ft	June 25, 2017
9	16.55 ft	June 30, 1971
10	16.25 ft	July 1, 1967

Weather at the gauge

No rain in the last 3 days.

19 Mon 63° 31° – Wind 8 mph

20 Tue 63° 36° – Wind 7 mph

21 Wed 65° 35° – Wind 9 mph

22 Thu 64° 47° 0.02 in, 28% Wind 20 mph

23 Fri 55° 42° 0.12 in, 78% Wind 28 mph

24 Sat 53° 37° – Wind 19 mph

25 Sun 57° 38° – Wind 6 mph

Forecast: Open-Meteo

Sunrise 07:39 AM Sunset 06:32 PM Daylight 10 hr, 53 min Waxing gibbous 72%

Map

Other gauges on the Green River

Gauge	Level	Compared with normal	24 hours	Distance
Green River at Warren Bridge, near DanielRiver gauge, Green River	1.78 ft	Below flood stage	−0.08 ft	69 mi
Green River near La BargeRiver gauge, Green River	5.25 ft	Below flood stage	−0.04 ft	13 mi
Green River near Green RiverRiver gauge, Green River	1.04 ft	Below flood stage	+0.02 ft	47 mi
Green River near GreendaleRiver gauge, Green River	10.21 ft	Below flood stage	−0.01 ft	83 mi
Green River near JensenRiver gauge, Green River	3.26 ft	Below flood stage	−0.14 ft	119 mi
Green River at Ouray, UtahRiver gauge, Green River	2,850 cfs	High	−610.0 cfs	135 mi

Nearby gauges

Gauge	Level	Compared with normal	24 hours	Distance
Fontenelle ReservoirReservoir	6,498.54 ft	High		3.5 mi
Big Sandy River at Gasson Bridge, near EdenRiver gauge, Big Sandy River	32.9 cfs	Low	+0.6 cfs	19 mi
Fontenelle Creek near Herschler Ranch, near FontenelleRiver gauge, Fontenelle Creek	5.25 ft	Below flood stage	+0.02 ft	19 mi
Hams Fork at DiamondvilleRiver gauge, Hams Fork	21.8 cfs	Low	+6.5 cfs	30 mi
Hams Fork below Pole Creek, near FrontierRiver gauge, Hams Fork	2.76 ft	Below flood stage	±0	34 mi
Muddy Creek near HamptonRiver gauge, Muddy Creek	4.7 cfs	Normal	−10.5 cfs	35 mi
Big Sandy Reservoir near FarsonReservoir, Big Sandy Reservoir	6,738.86 ft	Below flood stage	+0.21 ft	35 mi
Big Sandy ReservoirReservoir	6,738.73 ft	Normal		36 mi

Questions and answers

What is flood stage for the Green River below Fontenelle Reservoir?

The official flood stage is 16.50 ft. The level is currently 5.39 ft below it.

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 Green River below Fontenelle Reservoir today?

On Oct 20, 2026, 05:00 PM MDT, the water level was 11.11 ft. Steady over the last 24 hours.

Is Green River below Fontenelle Reservoir rising or falling?

Steady over the last 24 hours.

Is the level of Green River below Fontenelle Reservoir normal?

Below flood stage. Judged against the official flood stage for this gauge.

What is the highest water level ever recorded at Green River below Fontenelle Reservoir?

The highest level on record is 18.74 ft on September 5, 1965.

Is Green River below Fontenelle Reservoir expected to rise?

The forecast expects the river to rise to 11.34 ft by Thursday, October 22 at 12:00 PM.

For specialists

Station codes, datum, parameters, data quality and downloads

Operator: U.S. Geological Survey
Station code: usgs:09211200 (Agency page)
Coordinates: 42.02097, -110.04981 (WGS84)
Vertical datum: NGVD29
Update interval: every 15 minutes
Licence: Public domain. Data: U.S. Geological Survey (USGS), provisional data subject to revision

Published series

Parameter	Last value	Time (UTC)	Quality
Water level	11.11 ft	2026-10-20 23:00	Provisional
Flow	605 cfs	2026-10-20 23:00	Provisional
Water temperature	56 °F	2026-10-20 23:00	Provisional

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How to cite

U.S. Geological Survey: Green River below Fontenelle Reservoir (usgs:09211200). Accessed October 20, 2026 via Nivelmap, https://nivelmap.com/en/united-states/wyoming/green-river-below-fontenelle-reservoir

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