Rivermatics

USGS Streamgage 09204500

East Fork at New Fork, WY

East Fork at New Fork, WY is USGS streamgage 09204500 in Wyoming, monitoring river discharge in hydrologic subbasin 14040102. It drains a watershed of about 360 square miles. Discharge records at this site go back to 1904. Typical flow runs near 127.4 cfs in July and 62.6 cfs in April, with the higher of the two arriving in July. 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
360 sq mi
Gauge elevation
6,921 ft
Subbasin (HUC-8)
14040102
Coordinates
42.69611, -109.71444
USGS site number
09204500
Records begin
1904-10-01 (122 years)
Rivermatics forecast
14-day flow outlook

14-day flow forecast

Based on observations through for East Fork at New Fork, 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
66.5 69.1 71
65 68.3 70.6
63.9 67.6 70.8
62.8 67.2 70.6
61.4 66.4 69.9
61.2 66.3 70.5
61.9 67.9 74.1
60.9 67.9 74.4
59.1 66.6 72.4
58 65.5 71.1
56.6 64.5 70.1
55.5 63.7 69.4
54.8 63.1 69
54 62.6 69

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 28 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 28 39 55
February 28 41 53
March 30 47.1 77.8
April 46.1 62.6 190.1
May 129.4 325.6 1,083.7
June 189.9 803.4 2,126.7
July 46.3 127.4 531
August 38 60.1 105.3
September 34.7 54 80.4
October 34.7 54.3 91.2
November 30.8 52.2 70.7
December 30 42 62

All values in cubic feet per second (cfs).

Common questions

When does East Fork at New Fork, WY normally run highest?
June, on the long-term record. The median daily flow that month is about 803.4 cfs, against 39 cfs in January, the lowest month. These are historical normals for the date, not a forecast and not today's reading.
What is a normal flow for East Fork at New Fork, WY?
It depends on the month. In January, half of days historically fall near 39 cfs, with the middle 80% of days between 28 and 55 cfs. The month-by-month table on this page gives the full range.
How long has East Fork at New Fork, WY been measured?
Discharge records at USGS site 09204500 begin in 1904, about 122 years, covering roughly 351 days of published daily values. The long record is what makes the monthly percentiles on this page meaningful.
Is there a flow forecast for East Fork at New Fork, 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 East Fork at New Fork, WY?
The gauge sits at 42.69611, -109.71444, in Wyoming, in hydrologic subbasin 14040102, at an elevation of about 6,921 feet, draining roughly 360 square miles.
Can I use East Fork at New Fork, 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.

Other gauges in this subbasin