Rivermatics

USGS Streamgage 06317000

Powder River at Arvada, WY

Powder River at Arvada, WY is USGS streamgage 06317000 in Wyoming, monitoring river discharge in hydrologic subbasin 10090202. It sits on the Powder River, alongside 2 other gauges Rivermatics tracks on the same river. It drains a watershed of about 5,924 square miles. Discharge records at this site go back to 1919. Typical flow runs near 112 cfs in July and 265.5 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.

View live conditions & forecast →

Gauge details

State
Wyoming
Drainage area
5,924 sq mi
Gauge elevation
3,623 ft
Subbasin (HUC-8)
10090202
Coordinates
44.64993, -106.1276
USGS site number
06317000
Records begin
1919-08-03 (107 years)
Rivermatics forecast
14-day flow outlook

14-day flow forecast

Based on observations through for Powder River at Arvada, WY. 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
0 0 0.2
0 0 0.2
0 0.1 0.3
0 0.1 0.4
0 0.1 0.3
0 0.1 0.4
0 0.1 1.6
0 0.2 41.6
0 0.4 64.6
0 0.6 73.1
0 0.7 72
0 0.6 69.7
0 0.6 65.2
0 0.6 67.6

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 96 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 40.6 91.1 159.9
February 63.3 133.3 383.5
March 139.2 257.5 733.1
April 159.2 265.5 583.3
May 165.7 476.8 1,476.8
June 73.9 401.1 1,746.3
July 13.2 112 512.9
August 0 32.5 187.1
September 0 31.7 163.1
October 24.7 103.5 219.3
November 55.7 131 202.4
December 44.8 92 172.6

All values in cubic feet per second (cfs).

Common questions

When does Powder River at Arvada, WY normally run highest?
May, on the long-term record. The median daily flow that month is about 476.8 cfs, against 31.7 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 Powder River at Arvada, WY?
It depends on the month. In January, half of days historically fall near 91.1 cfs, with the middle 80% of days between 40.6 and 159.9 cfs. The month-by-month table on this page gives the full range.
How long has Powder River at Arvada, WY been measured?
Discharge records at USGS site 06317000 begin in 1919, about 107 years, covering roughly 9,196 days of published daily values. The long record is what makes the monthly percentiles on this page meaningful.
Is there a flow forecast for Powder River at Arvada, WY?
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 Powder River at Arvada, WY?
The gauge sits at 44.64993, -106.1276, in Wyoming, in hydrologic subbasin 10090202, at an elevation of about 3,623 feet, draining roughly 5,924 square miles.
Can I use Powder River at Arvada, WY 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 Powder River

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

Other gauges in this region