USGS Streamgage 09266500
Ashley Creek near Vernal, UT
Ashley Creek near Vernal, UT is USGS streamgage 09266500 in Utah, monitoring river discharge in hydrologic subbasin 14060010. It sits on the Ashley Creek, alongside 1 other gauge Rivermatics tracks on the same river. It drains a watershed of about 101 square miles. Discharge records at this site go back to 1912. Typical flow runs near 112.2 cfs in July and 32 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
- Utah
- Drainage area
- 101 sq mi
- Gauge elevation
- 6,234 ft
- Subbasin (HUC-8)
- 14060010
- Coordinates
- 40.57744, -109.62211
- USGS site number
- 09266500
- Records begin
- 1912-05-27 (114 years)
- Rivermatics forecast
- 14-day flow outlook
14-day flow forecast
Based on observations through for Ashley Creek near Vernal, UT. 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.
| Date | Low p10 | Expected p50 | High p90 | Range |
|---|---|---|---|---|
| 65.4 | 67.5 | 69.4 | ||
| 63.5 | 67.8 | 73.8 | ||
| 60.9 | 66.8 | 73.9 | ||
| 57.3 | 65 | 72.8 | ||
| 52.1 | 62.5 | 70.8 | ||
| 48.1 | 60.2 | 69.1 | ||
| 44.3 | 58.2 | 68.2 | ||
| 41.1 | 56.6 | 66.9 | ||
| 38.8 | 54.9 | 65.8 | ||
| 36.5 | 52.9 | 64.1 | ||
| 35.8 | 51.6 | 63 | ||
| 33.3 | 49.5 | 61.2 | ||
| 32.4 | 48.2 | 60 | ||
| 31.2 | 47.1 | 59.3 |
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 112 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 | 11.4 | 21.1 | 38 | |
| February | 10.6 | 18.7 | 33.2 | |
| March | 9.7 | 18.1 | 30.5 | |
| April | 12.8 | 32 | 110 | |
| May | 96.5 | 278.5 | 665.4 | |
| June | 97.4 | 234.6 | 604.4 | |
| July | 56.1 | 112.2 | 182.6 | |
| August | 36.1 | 76.7 | 123.8 | |
| September | 22.5 | 57.4 | 102.4 | |
| October | 18.6 | 41.4 | 88.8 | |
| November | 16.2 | 31.1 | 62.7 | |
| December | 12.4 | 25 | 45.8 |
All values in cubic feet per second (cfs).
Common questions
- When does Ashley Creek near Vernal, UT normally run highest?
- May, on the long-term record. The median daily flow that month is about 278.5 cfs, against 18.1 cfs in March, the lowest month. These are historical normals for the date, not a forecast and not today's reading.
- What is a normal flow for Ashley Creek near Vernal, UT?
- It depends on the month. In January, half of days historically fall near 21.1 cfs, with the middle 80% of days between 11.4 and 38 cfs. The month-by-month table on this page gives the full range.
- How long has Ashley Creek near Vernal, UT been measured?
- Discharge records at USGS site 09266500 begin in 1912, about 114 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 Ashley Creek near Vernal, UT?
- 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 Ashley Creek near Vernal, UT?
- The gauge sits at 40.57744, -109.62211, in Utah, in hydrologic subbasin 14060010, at an elevation of about 6,234 feet, draining roughly 101 square miles.
- Can I use Ashley Creek near Vernal, UT 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 Ashley Creek
Every gauge Rivermatics tracks on this river, ordered by drainage area — upstream first. See the Ashley Creek in full.
- Ashley Creek near Vernal, UT this page
- Ashley Creek near Remember the Maine Park near Vernal, UT 241 sq mi