USGS Streamgage 06634060
L Medicine Bow River ab Sand Creek, near Shirley Basin, WY
L Medicine Bow River ab Sand Creek, near Shirley Basin, WY is USGS streamgage 06634060 in Wyoming, monitoring river discharge in hydrologic subbasin 10180005. It sits on the L Medicine Bow River, alongside 1 other gauge Rivermatics tracks on the same river. It drains a watershed of about 163 square miles. Discharge records at this site go back to 2015. Typical flow runs near 2.9 cfs in July and 35.4 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
- 163 sq mi
- Gauge elevation
- 6,970 ft
- Subbasin (HUC-8)
- 10180005
- Coordinates
- 42.33111, -106.15528
- USGS site number
- 06634060
- Records begin
- 2015-04-30 (11 years)
- Rivermatics forecast
- 14-day flow outlook
14-day flow forecast
Based on observations through for L Medicine Bow River ab Sand Creek, near Shirley Basin, 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.
| Date | Low p10 | Expected p50 | High p90 | Range |
|---|---|---|---|---|
| 0.1 | 0.2 | 0.3 | ||
| 0.1 | 0.2 | 0.3 | ||
| 0.1 | 0.2 | 0.3 | ||
| 0.1 | 0.2 | 0.3 | ||
| 0.1 | 0.2 | 0.3 | ||
| 0.1 | 0.2 | 0.4 | ||
| 0.2 | 0.5 | 2.4 | ||
| 0.2 | 0.5 | 1.3 | ||
| 0.1 | 0.4 | 0.9 | ||
| 0.1 | 0.3 | 0.7 | ||
| 0.1 | 0.3 | 0.6 | ||
| 0.1 | 0.3 | 0.6 | ||
| 0.1 | 0.3 | 0.6 | ||
| 0.1 | 0.3 | 0.6 |
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 11 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 | 1.2 | 3 | 6.3 | |
| February | 0.8 | 4.6 | 10.4 | |
| March | 1.9 | 7.6 | 54.8 | |
| April | 8.7 | 35.4 | 145.9 | |
| May | 14.4 | 69.3 | 185.2 | |
| June | 4 | 12.4 | 47.4 | |
| July | 0.7 | 2.9 | 31.1 | |
| August | 0.3 | 1.4 | 7.3 | |
| September | 0.5 | 1.4 | 3.5 | |
| October | 1.1 | 2.5 | 6.7 | |
| November | 1.2 | 3.5 | 6.4 | |
| December | 1.3 | 3.5 | 6.2 |
All values in cubic feet per second (cfs).
Common questions
- When does L Medicine Bow River ab Sand Creek, near Shirley Basin, WY normally run highest?
- May, on the long-term record. The median daily flow that month is about 69.3 cfs, against 1.4 cfs in August, the lowest month. These are historical normals for the date, not a forecast and not today's reading.
- What is a normal flow for L Medicine Bow River ab Sand Creek, near Shirley Basin, WY?
- It depends on the month. In January, half of days historically fall near 3 cfs, with the middle 80% of days between 1.2 and 6.3 cfs. The month-by-month table on this page gives the full range.
- How long has L Medicine Bow River ab Sand Creek, near Shirley Basin, WY been measured?
- Discharge records at USGS site 06634060 begin in 2015, about 11 years, covering roughly 4,109 days of published daily values. The long record is what makes the monthly percentiles on this page meaningful.
- Is there a flow forecast for L Medicine Bow River ab Sand Creek, near Shirley Basin, 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 L Medicine Bow River ab Sand Creek, near Shirley Basin, WY?
- The gauge sits at 42.33111, -106.15528, in Wyoming, in hydrologic subbasin 10180005, at an elevation of about 6,970 feet, draining roughly 163 square miles.
- Can I use L Medicine Bow River ab Sand Creek, near Shirley Basin, 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 L Medicine Bow River
Every gauge Rivermatics tracks on this river, ordered by drainage area — upstream first. See the L Medicine Bow River in full.
- L Medicine Bow River ab Sand Creek, near Shirley Basin, WY this page
- L Medicine Bow River at Boles Spring, near Medicine Bow 969 sq mi