North Platte River above Seminoe Reservoir, near Sinclair water level

Name: North Platte River above Seminoe Reservoir, near Sinclair 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, North Platte River, Wyoming, United States

Directions

Below flood stage

Water level

3.12ft Down 0.04 ft over the last 24 hours

Measured Oct 21, 2026, 02:45 AM MDT (48 min ago)

Flow: 269 cfs

History

7 days

Water level Minor flood stage

What this means

Water levels are unremarkable at North Platte River above Seminoe Reservoir, near Sinclair, where the gauge shows 3.12 ft.

It is 5.88 ft below the flood stage of 9.00 ft.

It is still going down, by 0.04 ft over the past 24 hours. The 30-day range is 3.12 ft – 3.25 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: 11.64 ftJune 14, 2010

Paddling and fishing conditions

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

For reference, flood stage is 9.00 ft.

What happens at each level

12.00 ft: The Fort Steele state historic site becomes totally inundated with high water. A majority of the Sinclair Golf Club is totally submerged. High water may begin to encroach low lying areas near Interstate 80 at the Sinclair rest area and near the Fort Steele highway bridge.
11.64 ft: Record stage and flow 16,700 cfs (06/14/2010)
11.00 ft: Lowland areas along the left river bank near the Fort Steele state historic site become totally inundated. Low lying areas at the Sinclair Golf Club become totally submerged.
10.00 ft: Moderate Flood. Lowland flooding becomes more widespread along the left river bank near the Fort Steele state historic site. Flooding also intensifies across low lying areas at the Sinclair Golf Club.
9.00 ft: Flood stage. Minor lowland flooding occurs along the left river bank near the Fort Steele state historic site. Minor flooding occurs across low lying areas at the Sinclair Golf Club.
8.50 ft: Bankfull stage. The river may begin to overtop its banks across low lying areas along the left river bank near the Fort Steele state historic site. Minor flooding is also possible along low lying areas at the Sinclair Golf Club.
3.12 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	11.64 ft	June 14, 2010
2	11.46 ft	June 9, 2011
3	11.30 ft	June 11, 1986
4	10.84 ft	May 26, 1984
5	10.50 ft	May 29, 2014
6	9.86 ft	June 26, 1983
7	9.72 ft	June 15, 1957
8	9.60 ft	June 25, 2019
9	9.51 ft	June 19, 1995
10	9.42 ft	June 7, 1997

Weather at the gauge

The forecast is not available right now.

Sunrise 07:28 AM Sunset 06:19 PM Daylight 10 hr, 51 min Waxing gibbous 76%

Map

Other gauges on the North Platte River

Gauge	Level	Compared with normal	24 hours	Distance
North Platte River near NorthgateRiver gauge, North Platte River	2.37 ft	Below flood stage	−0.01 ft	75 mi
North Platte River at OrinRiver gauge, North Platte River	3.37 ft	Below flood stage	±0	111 mi
North Platte River below Whalen Diversion DamRiver gauge, North Platte River	12.4 cfs	Low	−0.8 cfs	127 mi

Nearby gauges

Gauge	Level	Compared with normal	24 hours	Distance
Seminoe ReservoirReservoir	6,292.61 ft	Very low		21 mi
Medicine Bow River above Seminoe Reservoir, near HannaRiver gauge, Medicine Bow River	2.04 ft	Below flood stage	−0.02 ft	30 mi
Muddy Creek above Olson Draw, near DadRiver gauge, Muddy Creek	0.8 cfs	Low	+0.1 cfs	39 mi
Medicine Bow R above E Fk Med Bow near Elk MountainRiver gauge, Medicine Bow R	3.58 ft	Below flood stage	−0.01 ft	40 mi
Pathfinder ReservoirReservoir	5,783.91 ft	Very low		42 mi
Encampment River at Mouth, near EncampmentRiver gauge, Encampment River	2.04 ft	Below flood stage	±0	43 mi
North Brush Creek near SaratogaRiver gauge, North Brush Creek	9.4 cfs	Low	±0	44 mi

Questions and answers

What is flood stage for the North Platte River above Seminoe Reservoir, near Sinclair?

The official flood stage is 9.00 ft. The level is currently 5.88 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 North Platte River above Seminoe Reservoir, near Sinclair today?

On Oct 21, 2026, 02:45 AM MDT, the water level was 3.12 ft. Down 0.04 ft over the last 24 hours.

Is North Platte River above Seminoe Reservoir, near Sinclair rising or falling?

Down 0.04 ft over the last 24 hours. Down 0.08 ft over the last 7 days.

Is the level of North Platte River above Seminoe Reservoir, near Sinclair normal?

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

What is the highest water level ever recorded at North Platte River above Seminoe Reservoir, near Sinclair?

The highest level on record is 11.64 ft on June 14, 2010.

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:06630000 (Agency page)
Coordinates: 41.87217, -107.05760 (WGS84)
Vertical datum: NAVD88
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	3.12 ft	2026-10-21 08:45	Provisional
Flow	269 cfs	2026-10-21 08:45	Provisional

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How to cite

U.S. Geological Survey: North Platte River above Seminoe Reservoir, near Sinclair (usgs:06630000). Accessed October 21, 2026 via Nivelmap, https://nivelmap.com/en/united-states/wyoming/north-platte-river-above-seminoe-reservoir-near-sinclair

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