Rivermatics

USGS Streamgage 11262900

Mud Slough near Gustine, CA

Mud Slough near Gustine, CA is USGS streamgage 11262900 in California, monitoring river discharge in hydrologic subbasin 18040001. Discharge records at this site go back to 1985. Typical flow runs near 23.6 cfs in July and 57.7 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
California
Gauge elevation
61 ft
Subbasin (HUC-8)
18040001
Coordinates
37.26241, -120.90655
USGS site number
11262900
Records begin
1985-10-01 (41 years)
Rivermatics forecast
14-day flow outlook

14-day flow forecast

Based on observations through for Mud Slough near Gustine, CA. 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.

Forecast daily mean discharge in cubic feet per second, by date
Date Low p10 Expected p50 High p90 Range
2.8 9.6 17
1.8 10.1 19
1.4 10.4 21.4
1.6 10.9 22.9
1.5 11.6 24.5
1.4 12 25.1
1.3 11.1 23.7
1.2 11.1 24.1
1.1 11.2 24.7
1.2 12.1 25.9
1 12.5 26.5
1.2 14.1 29.6
1.1 14.6 31
1 14.2 31.1

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 41 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 43.9 125.5 402.1
February 46.4 136 365.1
March 39.2 153.5 364.2
April 19.7 57.7 159.4
May 5.3 38.2 107
June 2.9 31.5 99.4
July 2.9 23.6 92
August 1.1 19.6 81
September 1.3 26.6 66.9
October 6.2 89 172.4
November 13.4 102.2 189.2
December 26.5 110 219

All values in cubic feet per second (cfs).

Common questions

When does Mud Slough near Gustine, CA normally run highest?
March, on the long-term record. The median daily flow that month is about 153.5 cfs, against 19.6 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 Mud Slough near Gustine, CA?
It depends on the month. In January, half of days historically fall near 125.5 cfs, with the middle 80% of days between 43.9 and 402.1 cfs. The month-by-month table on this page gives the full range.
How long has Mud Slough near Gustine, CA been measured?
Discharge records at USGS site 11262900 begin in 1985, about 41 years, covering roughly 9,129 days of published daily values. The long record is what makes the monthly percentiles on this page meaningful.
Is there a flow forecast for Mud Slough near Gustine, CA?
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 Mud Slough near Gustine, CA?
The gauge sits at 37.26241, -120.90655, in California, in hydrologic subbasin 18040001, at an elevation of about 61 feet.
Can I use Mud Slough near Gustine, 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