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SwedenYellowstone River at Yellowstone Lake Outlet YNP water level
River gauge, Yellowstone River, Wyoming, United States
Right now
Below flood stage
Water level
- Flow
- 618 cfs
History
What this means
The gauge at Yellowstone River at Yellowstone Lake Outlet YNP reads 2.91 ft, a normal level.
It is 6.09 ft below the flood stage of 9.00 ft.
The level has held steady over the past 24 hours. Over the past 30 days it has moved between 2.91 ft and 2.98 ft.
Fall is often low-water season on rivers, until steadier rain returns.
Judged against the official flood stage for this gauge. How to read levels
Key numbers
- Highest on record
- 8.90 ftJune 18, 1997
What the stage means on the water
A normal level is usually prime time for floating and wade fishing, as long as the weather holds upstream.
The National Weather Service puts flood stage for this gauge at 9.00 ft, still 6.09 ft away.
What happens at each level
- 10.00 ft
- All of walkway past wooden bridge is under water. Water level is at base of small wooden bridge.
- 9.00 ft
- Flood stage. One half or more of walkway under water.
- 8.90 ft
- Record stage and flow---9,950 cfs (6/18/1997).
- 8.00 ft
- Bankfull stage. One half of farthest northeast end of walkway under water.
- 7.00 ft
- Water begins to encroach lowest lying parts of walkway. (west end of Fishing Bridge to Yellowstone River.)
- 2.91 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: < 5 %.
| Rank | Level | Date |
|---|---|---|
| 1 | 8.90 ft | June 18, 1997 |
| 2 | 8.74 ft | July 11, 2011 |
| 3 | 8.25 ft | June 28, 1996 |
| 4 | 8.20 ft | June 28, 1974 |
| 5 | 7.95 ft | June 28, 1971 |
| 6 | 7.85 ft | June 20, 1986 |
| 7 | 7.80 ft | June 28, 2017 |
| 8 | 7.73 ft | July 5, 2008 |
| 9 | 7.71 ft | July 14, 1982 |
| 10 | 7.63 ft | June 27, 1999 |
Weather at the gauge
The forecast is not available right now.
Map
Other gauges on the Yellowstone River
| Gauge | Level | Compared with normal | 24 hours | Distance |
|---|---|---|---|---|
| Yellowstone River at Corwin Springs MTRiver gauge, Yellowstone River | 1.27 ft | Below flood stage | −0.02 ft | 43 mi |
| Yellowstone River near LivingstonRiver gauge, Yellowstone River | −0.10 ft | Below flood stage | −0.03 ft | 72 mi |
| Yellowstone River at Billings MTRiver gauge, Yellowstone River | 2.91 ft | Below flood stage | −0.02 ft | 126 mi |
Nearby gauges
| Gauge | Level | Compared with normal | 24 hours | Distance |
|---|---|---|---|---|
| Tantalus Creek at Norris Junction, YNPRiver gauge, Tantalus Creek | 4.2 cfs | Normal | −0.2 cfs | 20 mi |
| Firehole River at Old Faithful, YNPRiver gauge, Firehole River | 38.7 cfs | Very low | ±0 | 23 mi |
| Firehole River near West Yellowstone MTRiver gauge, Firehole River | 200 cfs | Very low | +2.0 cfs | 24 mi |
| Gibbon River at Madison Jct, YNPRiver gauge, Gibbon River | 66.9 cfs | Very low | ±0 | 24 mi |
| Lamar River near Tower Ranger Station YNPRiver gauge, Lamar River | 1.01 ft | Below flood stage | −0.01 ft | 25 mi |
| Boiling River at Mammoth,YNPRiver gauge, Boiling River | 20.1 cfs | Low | ±0 | 33 mi |
| Gardner River near Mammoth, YNPRiver gauge, Gardner River | 106 cfs | Low | −3.0 cfs | 33 mi |
| Madison River near West YellowstoneRiver gauge, Madison River | 296 cfs | Very low | ±0 | 34 mi |
Questions and answers
What is flood stage for the Yellowstone River at Yellowstone Lake Outlet YNP?
The official flood stage is 9.00 ft. The level is currently 6.09 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 Yellowstone River at Yellowstone Lake Outlet YNP today?
On Oct 20, 2026, 04:30 AM MDT, the water level was 2.91 ft. Steady over the last 24 hours.
Is Yellowstone River at Yellowstone Lake Outlet YNP rising or falling?
Steady over the last 24 hours.
Is the level of Yellowstone River at Yellowstone Lake Outlet YNP normal?
Below flood stage. Judged against the official flood stage for this gauge.
What is the highest water level ever recorded at Yellowstone River at Yellowstone Lake Outlet YNP?
The highest level on record is 8.90 ft on June 18, 1997.
How often is this data updated?
The U.S. Geological Survey publishes a new reading every 15 minutes. This page refreshes within minutes of each update.
For specialists
Station codes, datum, parameters, data quality and downloads
- Operator
- U.S. Geological Survey
- Station code
usgs:06186500(Agency page)- Coordinates
44.56709, -110.38041(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 | 2.91 ft | 2026-10-20 10:30 | Provisional |
| Flow | 618 cfs | 2026-10-20 10:30 | Provisional |
Download
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How to cite
U.S. Geological Survey: Yellowstone River at Yellowstone Lake Outlet YNP (usgs:06186500). Accessed October 20, 2026 via Nivelmap, https://nivelmap.com/en/united-states/wyoming/yellowstone-river-at-yellowstone-lake-outlet-ynp
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