Rivermatics

USGS Streamgage 11230200

Hooper C below Diversion Dam near Florence Lake, CA

Hooper C below Diversion Dam near Florence Lake, CA is USGS streamgage 11230200 in California, monitoring river discharge in hydrologic subbasin 18040006. It drains a watershed of about 7 square miles. Discharge records at this site go back to 1986. Typical flow runs near 4.2 cfs in July and 6.8 cfs in April, with the higher of the two arriving in April.

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Gauge details

State
California
Drainage area
7 sq mi
Gauge elevation
7,440 ft
Subbasin (HUC-8)
18040006
Coordinates
37.30577, -118.95067
USGS site number
11230200
Records begin
1986-10-01 (40 years)

Typical flow by month

Long-term daily discharge percentiles from the USGS record (up to 39 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 1.6 2.2 3.4
February 1.6 2.3 3.8
March 2 3.1 6.1
April 2.8 6.8 14.7
May 2.6 6.7 43.9
June 2.7 5.6 88.5
July 2.6 4.2 39.5
August 2.2 3 9.3
September 1.7 2.3 4.7
October 1.6 2.2 4.2
November 1.7 2.3 3.6
December 1.5 2.2 3.3

All values in cubic feet per second (cfs).

Common questions

When does Hooper C below Diversion Dam near Florence Lake, CA normally run highest?
April, on the long-term record. The median daily flow that month is about 6.8 cfs, against 2.2 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 Hooper C below Diversion Dam near Florence Lake, CA?
It depends on the month. In January, half of days historically fall near 2.2 cfs, with the middle 80% of days between 1.6 and 3.4 cfs. The month-by-month table on this page gives the full range.
How long has Hooper C below Diversion Dam near Florence Lake, CA been measured?
Discharge records at USGS site 11230200 begin in 1986, about 40 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 Hooper C below Diversion Dam near Florence Lake, CA?
The gauge sits at 37.30577, -118.95067, in California, in hydrologic subbasin 18040006, at an elevation of about 7,440 feet, draining roughly 7 square miles.
Can I use Hooper C below Diversion Dam near Florence Lake, 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