USGS Streamgage 10109001
Com F Logan River Ab St D and Cache Hl Can near Logan, UT
Com F Logan River Ab St D and Cache Hl Can near Logan, UT is USGS streamgage 10109001 in Utah, monitoring river discharge in hydrologic subbasin 16010203. It drains a watershed of about 214 square miles. Discharge records at this site go back to 1921. Typical flow runs near 299.8 cfs in July and 218.3 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
- 214 sq mi
- Gauge elevation
- 4,680 ft
- Subbasin (HUC-8)
- 16010203
- Coordinates
- 41.74438, -111.78439
- USGS site number
- 10109001
- Records begin
- 1921-10-01 (105 years)
- Rivermatics forecast
- 14-day flow outlook
14-day flow forecast
Based on observations through for Com F Logan River Ab St D and Cache Hl Can near Logan, 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 |
|---|---|---|---|---|
| 106 | 109 | 111 | ||
| 105 | 108 | 111 | ||
| 106 | 109 | 113 | ||
| 105 | 109 | 112 | ||
| 104 | 108 | 111 | ||
| 103 | 107 | 111 | ||
| 102 | 106 | 110 | ||
| 102 | 106 | 110 | ||
| 101 | 105 | 109 | ||
| 100 | 105 | 109 | ||
| 100 | 105 | 110 | ||
| 100 | 105 | 110 | ||
| 99.3 | 105 | 110 | ||
| 98.4 | 105 | 110 |
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 105 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 | 77.3 | 104.9 | 140.5 | |
| February | 77.9 | 102.9 | 136.9 | |
| March | 86.5 | 112.6 | 162.2 | |
| April | 128.8 | 218.3 | 418.7 | |
| May | 285.6 | 544.8 | 968.1 | |
| June | 262.1 | 581.4 | 1,089.7 | |
| July | 160.9 | 299.8 | 541.8 | |
| August | 124.5 | 203.1 | 304.6 | |
| September | 105.9 | 165.4 | 235 | |
| October | 96.8 | 143.1 | 199.8 | |
| November | 87.8 | 127.4 | 174.4 | |
| December | 80.3 | 112.4 | 154.2 |
All values in cubic feet per second (cfs).
Common questions
- When does Com F Logan River Ab St D and Cache Hl Can near Logan, UT normally run highest?
- June, on the long-term record. The median daily flow that month is about 581.4 cfs, against 102.9 cfs in February, the lowest month. These are historical normals for the date, not a forecast and not today's reading.
- What is a normal flow for Com F Logan River Ab St D and Cache Hl Can near Logan, UT?
- It depends on the month. In January, half of days historically fall near 104.9 cfs, with the middle 80% of days between 77.3 and 140.5 cfs. The month-by-month table on this page gives the full range.
- How long has Com F Logan River Ab St D and Cache Hl Can near Logan, UT been measured?
- Discharge records at USGS site 10109001 begin in 1921, about 105 years, covering roughly 9,130 days of published daily values. The long record is what makes the monthly percentiles on this page meaningful.
- Is there a flow forecast for Com F Logan River Ab St D and Cache Hl Can near Logan, 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 Com F Logan River Ab St D and Cache Hl Can near Logan, UT?
- The gauge sits at 41.74438, -111.78439, in Utah, in hydrologic subbasin 16010203, at an elevation of about 4,680 feet, draining roughly 214 square miles.
- Can I use Com F Logan River Ab St D and Cache Hl Can near Logan, 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.