USGS Streamgage 11429500
Gerle C below Loon Lake near Meeks Bay, CA
Gerle C below Loon Lake near Meeks Bay, CA is USGS streamgage 11429500 in California, monitoring river discharge in hydrologic subbasin 18020128. It drains a watershed of about 8 square miles. Discharge records at this site go back to 1962. Typical flow runs near 9.2 cfs in July and 10.1 cfs in April, with the higher of the two arriving in April.
Gauge details
- State
- California
- Drainage area
- 8 sq mi
- Subbasin (HUC-8)
- 18020128
- Coordinates
- 39.00546, -120.31547
- USGS site number
- 11429500
- Records begin
- 1962-09-01 (64 years)
Typical flow by month
Long-term daily discharge percentiles from the USGS record (up to 64 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 | 8 | 9.3 | 24 | |
| February | 8.1 | 9.5 | 29.2 | |
| March | 7.9 | 9.9 | 46.9 | |
| April | 8.1 | 10.1 | 61.5 | |
| May | 8.4 | 10 | 73.8 | |
| June | 8.1 | 9.7 | 295.9 | |
| July | 7.9 | 9.2 | 214.4 | |
| August | 7.7 | 9 | 25.9 | |
| September | 7.2 | 8.9 | 19.1 | |
| October | 7.8 | 9 | 23.9 | |
| November | 7.9 | 9 | 23.2 | |
| December | 8.1 | 9.2 | 29.9 |
All values in cubic feet per second (cfs).
Common questions
- When does Gerle C below Loon Lake near Meeks Bay, CA normally run highest?
- April, on the long-term record. The median daily flow that month is about 10.1 cfs, against 8.9 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 Gerle C below Loon Lake near Meeks Bay, CA?
- It depends on the month. In January, half of days historically fall near 9.3 cfs, with the middle 80% of days between 8 and 24 cfs. The month-by-month table on this page gives the full range.
- How long has Gerle C below Loon Lake near Meeks Bay, CA been measured?
- Discharge records at USGS site 11429500 begin in 1962, about 64 years, covering roughly 8,821 days of published daily values. The long record is what makes the monthly percentiles on this page meaningful.
- Where is Gerle C below Loon Lake near Meeks Bay, CA?
- The gauge sits at 39.00546, -120.31547, in California, in hydrologic subbasin 18020128, draining roughly 8 square miles.
- Can I use Gerle C below Loon Lake near Meeks Bay, CA 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
- Gerle C Low Flow Release below Gerle Reservoir near Meeks Bay
- MF American River near Foresthill, CA
- NF American River A Auburn Dam Site near Auburn, CA
- Mormon Ravine near Newcastle, CA
- Lake Valley Cn near Emigrant Gap, CA
- NF American River A North Fork Dam, CA
- MF American River A French Meadows, CA
- Duncan Cyn C below Diversion Dam near French Meadows, CA