Rivermatics

USGS Streamgage 06797500

Elkhorn River at Ewing, Nebr.

Elkhorn River at Ewing, Nebr. is USGS streamgage 06797500 in Nebraska, monitoring river discharge in hydrologic subbasin 10220001. It sits on the Elkhorn River, alongside 4 other gauges Rivermatics tracks on the same river. It drains a watershed of about 1,400 square miles. Discharge records at this site go back to 1947. Typical flow runs near 74.7 cfs in July and 228.3 cfs in April, with the higher of the two arriving in April. Rivermatics issues a daily machine-learned flow outlook for this gauge, reaching 14 days ahead.

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Gauge details

State
Nebraska
Drainage area
1,400 sq mi
Gauge elevation
1,848 ft
Subbasin (HUC-8)
10220001
Coordinates
42.26858, -98.33956
USGS site number
06797500
Records begin
1947-06-23 (79 years)
Rivermatics forecast
14-day flow outlook

14-day flow forecast

Based on observations through for Elkhorn River at Ewing, Nebr.. Each day carries a median estimate and the band the model expects the flow to fall within — not a single number to plan against. Forecasts are re-issued daily; see the live screen for the current outlook.

Forecast daily mean discharge in cubic feet per second, by date
Date Low p10 Expected p50 High p90 Range
67.4 73.3 80.3
60.1 68.2 79.2
55.3 64.2 77.7
51.7 62.7 88.3
49.2 64 100
48.2 63.8 102
57.1 102 328
115 544 3,510
238 1,272 5,615
200 901 3,569
153 581 2,005
121 408 1,338
109 342 1,037
101 293 853

All values in cubic feet per second (cfs). Estimates only — do not use them for navigation or for any safety, rescue, or emergency decision.

Typical flow by month

Long-term daily discharge percentiles from the USGS record (up to 79 years of data), averaged within each month. These describe the historical normal range — they are not a forecast and not today's reading.

Historical monthly discharge percentiles in cubic feet per second
Month Low p10 Typical p50 High p90 Range
January 29.1 63 157
February 37.4 96.7 303.7
March 77.5 185.2 885.3
April 90.3 228.3 1,229.7
May 76.6 196.6 1,134.2
June 55.6 151.9 1,032.7
July 26.5 74.7 471.6
August 13.8 50.1 176.6
September 12.5 42.5 152
October 26 55.8 237.9
November 38 70 233.5
December 36.2 68.6 172.5

All values in cubic feet per second (cfs).

Common questions

When does Elkhorn River at Ewing, Nebr. normally run highest?
April, on the long-term record. The median daily flow that month is about 228.3 cfs, against 42.5 cfs in September, the lowest month. These are historical normals for the date, not a forecast and not today's reading.
What is a normal flow for Elkhorn River at Ewing, Nebr.?
It depends on the month. In January, half of days historically fall near 63 cfs, with the middle 80% of days between 29.1 and 157 cfs. The month-by-month table on this page gives the full range.
How long has Elkhorn River at Ewing, Nebr. been measured?
Discharge records at USGS site 06797500 begin in 1947, about 79 years, covering roughly 9,200 days of published daily values. The long record is what makes the monthly percentiles on this page meaningful.
Is there a flow forecast for Elkhorn River at Ewing, Nebr.?
Yes. Rivermatics trains a machine-learned model — a temporal-fusion transformer — on this basin's observed flows, weather, and snowpack, and issues a daily flow 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 the live gauge screen. Open live conditions to see the current outlook.
Where is Elkhorn River at Ewing, Nebr.?
The gauge sits at 42.26858, -98.33956, in Nebraska, in hydrologic subbasin 10220001, at an elevation of about 1,848 feet, draining roughly 1,400 square miles.
Can I use Elkhorn River at Ewing, Nebr. 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.

Upstream and downstream on the Elkhorn River

Every gauge Rivermatics tracks on this river, ordered by drainage area — upstream first. See the Elkhorn River in full.

Other gauges in this subbasin