5 USGS Streamgages · Mississippi River system
North Platte River flows and levels
North Platte River is gauged at 5 USGS streamgages in Wyoming and Nebraska, each tracked by Rivermatics. The mainstem runs about 730 miles (1,175 km) from headwaters to outlet. It drains into the Mississippi River system. Drainage area at the gauges ranges from 10,702 square miles at North Platte River below Pathfinder Reservoir, WY up to 24,500 at North Platte River at Scottsbluff, Nebr.. The gauged reach falls about 1,784 feet, from 5,666 feet down to 3,882. Rivermatics issues a daily machine-learned 14-day flow outlook at 3 of them.
Gauges on this river, upstream to downstream
Ordered by drainage area, which is how far down the river each gauge sits. April and July figures are long-term median daily flows for that month from the USGS record — historical normals, not a forecast and not today's reading.
| Gauge | State | Drainage sq mi | Elevation ft | April p50 cfs | July p50 cfs | Forecast |
|---|---|---|---|---|---|---|
| North Platte River below Pathfinder Reservoir, WY | WY | 10,702 | 5,666 | 198 | 4,740 | — |
| North Platte River at Alcova, WY | WY | 10,812 | 5,306 | 663.3 | 2,467.1 | — |
| North Platte River at Orin, WY | WY | 15,025 | 4,665 | 1,633.3 | 2,253.9 | 14-day |
| North Platte River below Whalen Diversion Dam, WY | WY | 16,318 | 4,273 | 35 | 1,607.1 | 14-day |
| North Platte River at Scottsbluff, Nebr. | NE | 24,500 | 3,882 | 322.2 | 331.7 | 14-day + temp |
Typical flow by month at North Platte River at Scottsbluff, Nebr.
The furthest-downstream gauge on this river, so the fullest flow it carries here. Long-term daily discharge percentiles from the USGS record (up to 3 years of data), averaged within each month. These describe the historical normal range — they are not a forecast and not today's reading.
| Month | Low p10 | Typical p50 | High p90 | Range |
|---|---|---|---|---|
| January | — | 391.7 | — | |
| February | — | 366.1 | — | |
| March | — | 337.4 | — | |
| April | — | 322.2 | — | |
| May | — | 332 | — | |
| June | — | 351.8 | — | |
| July | — | 331.7 | — | |
| August | — | 378.6 | — | |
| September | — | 999.7 | — | |
| October | — | 672.1 | — | |
| November | — | 520.3 | — | |
| December | — | 451.5 | — |
All values in cubic feet per second (cfs).
Common questions
- When does the North Platte River run highest?
- September, on the long-term record at North Platte River at Scottsbluff, Nebr. — the furthest-downstream gauge Rivermatics tracks on this river. Median daily flow there is about 999.7 cfs that month, against 322.2 cfs in April, the lowest. Upstream gauges peak on their own schedule; the table on this page gives April and July for each.
- How many gauges are on the North Platte River?
- Rivermatics tracks 5 USGS streamgages on the North Platte River, across Wyoming and Nebraska. Each has its own page with the site's full flow record and monthly normals. The river may carry other gauges that publish neither daily values nor discharge statistics; those are not tracked here.
- Is there a flow forecast for the North Platte River?
- Yes, at 3 of the 5 gauges. Rivermatics trains a machine-learned model — a temporal-fusion transformer — on each basin's observed flows, weather and snowpack, and issues a daily outlook reaching 14 days ahead: a median estimate inside a confidence band, not a single number to bet on. Every forecast is scored against days the model never trained on, and that track record is published on each gauge's live screen.
- What river system is the North Platte River part of?
- The North Platte River drains into the Mississippi River system — it is a tributary somewhere in that chain, following the flowpath down to its terminal river. Rivermatics builds this from the USGS/geoconnex reference-mainstem network rather than from names.
- Can I use North Platte River data for flood or safety decisions?
- No. Rivermatics provides estimates, not guarantees, and the readings and forecasts here may be delayed, inaccurate, or wrong. Do not use them for navigation or for any safety, rescue, or emergency decision. Check the National Weather Service and USGS directly, and use your own judgment.
Other rivers in the Mississippi River system
- Missouri River 52 gauges
- Big Sioux River 17 gauges
- James River 15 gauges
- Kansas River 12 gauges
- Smoky Hill River 12 gauges
- Platte River 11 gauges
- Rapid Creek 11 gauges
- Republican River 11 gauges